/* readers/writers for various sound file headers * * Currently supported read/write (in standard sample types): * NeXT/Sun/DEC/AFsp * AIFF/AIFC * RIFF (microsoft wave) * RF64 (EBU) * IRCAM (old style) * NIST-sphere * CAFF * no header * * Currently supported read-only (in selected sample types): * 8SVX (IFF), EBICSF, INRS, ESPS, SPPACK, ADC (OGI), AVR, VOC, CSL, snack "SMP", PVF, * Sound Tools, Turtle Beach SMP, SoundFont 2.0, Sound Designer I, PSION alaw, MAUD, * Gravis Ultrasound, Comdisco SPW, Goldwave sample, OMF, quicktime, sox, * Sonic Foundry (w64), SBStudio II, Delusion digital, Digiplayer ST3, Farandole Composer WaveSample, * Ultratracker WaveSample, Sample Dump exchange, Yamaha SY85 and SY99 (buggy), Yamaha TX16W, * Covox v8, AVI, Kurzweil 2000, Paris Ensoniq, Impulse tracker, Korg, Akai type 4, Maui, * * for a few of these I'm still trying to get documentation -- best sources of info are: * ftp.cwi.nl:pub/audio (info files) * the AFsp sources http://www.TSP.ECE.McGill.CA/MMSP/Documents/AudioFormats/index.html * the SOX sources * svr-ftp.eng.cam.ac.uk:/comp.speech/tools * http://www.wotsit.org * CAFF: http://developer.apple.com/documentation/MusicAudio/Reference/CAFSpec/ * and afconvert can be found in /Developer/Examples/CoreAudio/Services/AudioFileTools/ * RIFF: Microsoft Multimedia Programmer's Reference Manual at ftp.microsoft.com:/SoftLib/MSLFILES/MDRK.EXE * AVI: http://www.rahul.net/jfm/avi.html * EBU RF64: http://www.ebu.ch/CMSimages/en/tec_doc_t3306_tcm6-42570.pdf * Sound Designer: "Developer Documentation" from Digidesign * * test cases (sample files): ccrma-ftp.stanford.edu:/pub/Lisp/sf.tar.gz */ #include "mus-config.h" #if USE_SND #include "snd.h" #endif #include #include #include #include #include #ifndef _MSC_VER #include #else #include #pragma warning(disable: 4244) #endif #include "_sndlib.h" #include "sndlib-strings.h" /* can't use LONG_MAX here because we want a 4-byte max even on 64-bit machines */ #define BIGGEST_4_BYTE_SIGNED_INT 2147483647L #define BIGGEST_4_BYTE_UNSIGNED_INT 4294967295UL static const unsigned char I_DSND[4] = {'.','s','n','d'}; /* NeXT/Sun/Dec/SGI/AFsp first word */ static const unsigned char I_FORM[4] = {'F','O','R','M'}; /* AIFF first word */ static const unsigned char I_AIFF[4] = {'A','I','F','F'}; /* AIFF second word */ static const unsigned char I_AIFC[4] = {'A','I','F','C'}; /* ditto but might be compressed data */ static const unsigned char I_COMM[4] = {'C','O','M','M'}; static const unsigned char I_COMT[4] = {'C','O','M','T'}; static const unsigned char I_INFO[4] = {'I','N','F','O'}; static const unsigned char I_INST[4] = {'I','N','S','T'}; static const unsigned char I_MARK[4] = {'M','A','R','K'}; static const unsigned char I_SSND[4] = {'S','S','N','D'}; static const unsigned char I_NONE[4] = {'N','O','N','E'}; static const unsigned char I_ULAW[4] = {'U','L','A','W'}; /* AIFC compression types that we can handle */ static const unsigned char I_ulaw[4] = {'u','l','a','w'}; /* or maybe it's lowercase (Apple) ... */ static const unsigned char I_raw_[4] = {'r','a','w',' '}; /* AIFC offset binary OS 8.5 (others are 'MAC3' 'MAC6' 'cdx4' 'cdx2' 'str4') */ static const unsigned char I_sowt[4] = {'s','o','w','t'}; /* AIFC 16-bit little endian -- used by Mac when extracting CD tracks */ static const unsigned char I_fl32[4] = {'f','l','3','2'}; /* AIFC 32-bit float */ static const unsigned char I_fl64[4] = {'f','l','6','4'}; /* AIFC 64-bit float */ static const unsigned char I_alaw[4] = {'a','l','a','w'}; /* apple */ static const unsigned char I_APPL[4] = {'A','P','P','L'}; static const unsigned char I_MUS_[4] = {'C','L','M',' '}; /* I hereby claim this AIFF chunk name */ static const unsigned char I_RIFF[4] = {'R','I','F','F'}; /* RIFF first word */ static const unsigned char I_RIFX[4] = {'R','I','F','X'}; /* RIFX first word (big-endian RIFF file) */ static const unsigned char I_WAVE[4] = {'W','A','V','E'}; static const unsigned char I_fmt_[4] = {'f','m','t',' '}; static const unsigned char I_data[4] = {'d','a','t','a'}; static const unsigned char I_fact[4] = {'f','a','c','t'}; /* used by compressed RIFF files */ static const unsigned char I_clm_[4] = {'c','l','m',' '}; static const unsigned char I_NIST[4] = {'N','I','S','T'}; /* first word of NIST SPHERE files */ static const unsigned char I_VOC0[4] = {'C','r','e','a'}; /* Actual text is "Creative Voice File" */ static const unsigned char I_SOUN[4] = {'S','O','U','N'}; /* Sound Tools first word="SOUND" -- not unique as SMP files start with "SOUND SAMPLE" */ static const unsigned char I_ANNO[4] = {'A','N','N','O'}; static const unsigned char I_NAME[4] = {'N','A','M','E'}; static const unsigned char I_AVR_[4] = {'2','B','I','T'}; /* first word of AVR files */ static const unsigned char I_SPIB[4] = {'%','/','/','\n'}; /* first word of IEEE spib text sound files */ static const unsigned char I_S___[4] = {'%','-','-','-'}; /* first word of other IEEE spib text sound files */ static const unsigned char I_ALaw[4] = {'A','L','a','w'}; /* first word of PSION alaw files */ static const unsigned char I_MThd[4] = {'M','T','h','d'}; /* sigh -- the M word */ static const unsigned char I_DECN[4] = {'.','s','d','\0'}; /* first word of DEC files (?) */ static const unsigned char I_LIST[4] = {'L','I','S','T'}; static const unsigned char I_GF1P[4] = {'G','F','1','P'}; /* first word of Gravis Ultrsound patch files */ static const unsigned char I_DSIG[4] = {'$','S','I','G'}; /* first word of Comdisco SPW file */ static const unsigned char I_GOLD[4] = {'G','O','L','D'}; /* first word Goldwave(?) sample file */ static const unsigned char I_SRFS[4] = {'S','R','F','S'}; /* first word Sonic Resource Foundry file(?) */ static const unsigned char I_Diam[4] = {'D','i','a','m'}; /* first word DiamondWare file */ static const unsigned char I_CSRE[4] = {'C','S','R','E'}; /* adf first word -- second starts with "40" */ static const unsigned char I_SND_[4] = {'S','N','D',' '}; /* SBStudio II */ static const unsigned char I_DDSF[4] = {'D','D','S','F'}; /* Delusion Digital Sound File */ static const unsigned char I_FSMt[4] = {'F','S','M',(unsigned char)'\376'}; /* Farandole Composer WaveSample */ static const unsigned char I_UWFD[4] = {'U','W','F','D'}; /* Ultratracker Wavesample */ static const unsigned char I_LM89[4] = {'L','M','8','9'}; /* Yamaha TX-16 */ static const unsigned char I_SY80[4] = {'S','Y','8','0'}; /* Yamaha SY-99 */ static const unsigned char I_SY85[4] = {'S','Y','8','5'}; /* Yamaha SY-85 */ static const unsigned char I_SCRS[4] = {'S','C','R','S'}; /* Digiplayer ST3 */ static const unsigned char I_covox[4] = {(unsigned char)'\377','\125',(unsigned char)'\377',(unsigned char)'\252'}; static const unsigned char I_PRAM[4] = {'P','R','A','M'}; /* Kurzweil 2000 */ static const unsigned char I__PAF[4] = {' ','p','a','f'}; /* Paris Ensoniq */ static const unsigned char I_FAP_[4] = {'f','a','p',' '}; /* Paris Ensoniq */ static const unsigned char I_file[4] = {'f','i','l','e'}; /* snack "SMP" */ static const unsigned char I_PVF1[4] = {'P','V','F','1'}; /* portable voice format (mgetty) */ static const unsigned char I_PVF2[4] = {'P','V','F','2'}; static const unsigned char I_riff[4] = {'r','i','f','f'}; /* SoundForge */ static const unsigned char I_TWIN[4] = {'T','W','I','N'}; /* TwinVQ */ static const unsigned char I_IMPS[4] = {'I','M','P','S'}; /* Impulse Tracker */ static const unsigned char I_SMP1[4] = {'S','M','P','1'}; /* Korg */ static const unsigned char I_Maui[4] = {'M','a','u','i'}; /* Turtle Beach */ static const unsigned char I_SDIF[4] = {'S','D','I','F'}; /* IRCAM sdif */ #if G7XX static const unsigned char I_NVF_[4] = {'N','V','F',' '}; /* Nomad II Creative NVF */ #endif static const unsigned char I_ajkg[4] = {'a','j','k','g'}; /* shorten */ static const unsigned char I_RF64[4] = {'R','F','6','4'}; /* EBU RF64 */ static const unsigned char I_ds64[4] = {'d','s','6','4'}; /* EBU RF64 */ static const unsigned char I_caff[4] = {'c','a','f','f'}; /* Apple CAFF */ static const unsigned char I_desc[4] = {'d','e','s','c'}; /* Apple CAFF */ static const unsigned char I_lpcm[4] = {'l','p','c','m'}; /* Apple CAFF */ static const unsigned char I_dSoX[4] = {'.','S','o','X'}; /* Sox intermediate (little-endian?) */ static const unsigned char I_XoSd[4] = {'X','o','S','.'}; /* Sox intermediate */ #define HDRBUFSIZ 256 static unsigned char *hdrbuf; #define INITIAL_READ_SIZE 256 /* AIFF files can have any number of ANNO chunks, so we'll grab at least 4 of them */ #define AUX_COMMENTS 4 static mus_long_t *aux_comment_start = NULL, *aux_comment_end = NULL; #define LOOPS 2 static int *loop_modes = NULL, *loop_starts = NULL, *loop_ends = NULL; static int markers = 0; static int *marker_ids = NULL, *marker_positions = NULL; static bool hdrbuf_is_inited = false; /* for CLM */ void mus_reset_headers_c(void) { hdrbuf_is_inited = false; markers = 0; } int mus_header_initialize(void) { if (!hdrbuf_is_inited) { hdrbuf_is_inited = true; hdrbuf = (unsigned char *)calloc(HDRBUFSIZ, sizeof(unsigned char)); aux_comment_start = (mus_long_t *)calloc(AUX_COMMENTS, sizeof(mus_long_t)); aux_comment_end = (mus_long_t *)calloc(AUX_COMMENTS, sizeof(mus_long_t)); loop_modes = (int *)calloc(LOOPS, sizeof(int)); loop_starts = (int *)calloc(LOOPS, sizeof(int)); loop_ends = (int *)calloc(LOOPS, sizeof(int)); if ((hdrbuf == NULL) || (aux_comment_start == NULL) || (aux_comment_end == NULL) || (loop_modes == NULL) || (loop_starts == NULL) || (loop_ends == NULL)) return(mus_error(MUS_MEMORY_ALLOCATION_FAILED, "mus_header_initialize: buffer allocation failed")); } return(MUS_NO_ERROR); } #define I_IRCAM_VAX 0x0001a364 #define I_IRCAM_SUN 0x0002a364 #define I_IRCAM_MIPS 0x0003a364 #define I_IRCAM_NEXT 0x0004a364 static mus_long_t data_location = 0; static int srate = 0, chans = 0, original_sample_type = 0; static mus_sample_t sample_type = MUS_UNKNOWN_SAMPLE; static mus_header_t header_type = MUS_UNKNOWN_HEADER; static int type_specifier = 0, bits_per_sample = 0, block_align = 0, fact_samples = 0; static mus_long_t comment_start = 0, comment_end = 0; static mus_long_t true_file_length = 0, data_size = 0; static int base_detune = 0, base_note = 0; static bool little_endian = false; mus_long_t mus_header_samples(void) {return(data_size);} mus_long_t mus_header_data_location(void) {return(data_location);} int mus_header_chans(void) {return(chans);} int mus_header_srate(void) {return(srate);} mus_header_t mus_header_type(void) {return(header_type);} mus_sample_t mus_header_sample_type(void) {return(sample_type);} mus_long_t mus_header_comment_start(void) {return(comment_start);} mus_long_t mus_header_comment_end(void) {return(comment_end);} mus_long_t mus_header_aux_comment_start(int n) {if (aux_comment_start) return(aux_comment_start[n]); else return(-1);} mus_long_t mus_header_aux_comment_end(int n) {if (aux_comment_end) return(aux_comment_end[n]); else return(-1);} int mus_header_type_specifier(void) {return(type_specifier);} int mus_header_bits_per_sample(void) {return(bits_per_sample);} int mus_header_fact_samples(void) {return(fact_samples);} int mus_header_block_align(void) {return(block_align);} mus_long_t mus_header_true_length(void) {return(true_file_length);} int mus_header_original_sample_type(void) {return(original_sample_type);} int mus_header_loop_mode(int which) {if (loop_modes) return(loop_modes[which]); else return(-1);} int mus_header_loop_start(int which) {if (loop_starts) return(loop_starts[which]); else return(-1);} int mus_header_loop_end(int which) {if (loop_ends) return(loop_ends[which]); else return(-1);} int mus_header_mark_position(int id) {int i; for (i = 0; i < markers; i++) {if (marker_ids[i] == id) return(marker_positions[i]);} return(-1);} int mus_header_base_detune(void) {return(base_detune);} int mus_header_base_note(void) {return(base_note);} int mus_header_mark_info(int **m_ids, int **m_positions) { (*m_ids) = marker_ids; (*m_positions) = marker_positions; return(markers); } int mus_bytes_per_sample(mus_sample_t samp_type) { switch (samp_type) { case MUS_BYTE: return(1); break; case MUS_BSHORT: return(2); break; case MUS_UBYTE: return(1); break; case MUS_MULAW: return(1); break; case MUS_ALAW: return(1); break; case MUS_BINT: return(4); break; case MUS_BFLOAT: return(4); break; case MUS_BFLOAT_UNSCALED: return(4); break; case MUS_B24INT: return(3); break; case MUS_BDOUBLE: return(8); break; case MUS_BDOUBLE_UNSCALED: return(8); break; case MUS_LSHORT: return(2); break; case MUS_LINT: return(4); break; case MUS_LFLOAT: return(4); break; case MUS_LDOUBLE: return(8); break; case MUS_LFLOAT_UNSCALED: return(4); break; case MUS_LDOUBLE_UNSCALED: return(8); break; case MUS_L24INT: return(3); break; case MUS_UBSHORT: return(2); break; case MUS_ULSHORT: return(2); break; case MUS_BINTN: return(4); break; case MUS_LINTN: return(4); break; default: return(1); break; /* we divide by this number, so 0 is not safe */ } } mus_long_t mus_samples_to_bytes (mus_sample_t samp_type, mus_long_t size) { return(size * (mus_bytes_per_sample(samp_type))); } mus_long_t mus_bytes_to_samples (mus_sample_t samp_type, mus_long_t size) { return((mus_long_t)(size / (mus_bytes_per_sample(samp_type)))); } static bool equal_big_or_little_endian(const unsigned char *n1, const unsigned int n2) { return((mus_char_to_ubint(n1) == n2) || (mus_char_to_ulint(n1) == n2)); } static short big_or_little_endian_short(const unsigned char *n, bool little) { if (little) return(mus_char_to_lshort(n)); return(mus_char_to_bshort(n)); } static int big_or_little_endian_int(const unsigned char *n, bool little) { if (little) return(mus_char_to_lint(n)); return(mus_char_to_bint(n)); } static unsigned int big_or_little_endian_uint(const unsigned char *n, bool little) { if (little) return(mus_char_to_ulint(n)); return(mus_char_to_ubint(n)); } static float big_or_little_endian_float(const unsigned char *n, bool little) { if (little) return(mus_char_to_lfloat(n)); return(mus_char_to_bfloat(n)); } static bool match_four_chars(const unsigned char *head, const unsigned char *match) { return((head[0] == match[0]) && (head[1] == match[1]) && (head[2] == match[2]) && (head[3] == match[3])); } static void write_four_chars(unsigned char *head, const unsigned char *match) { head[0] = match[0]; head[1] = match[1]; head[2] = match[2]; head[3] = match[3]; } const char *mus_header_type_name(mus_header_t type) { switch (type) { case MUS_NEXT: return("Sun/Next"); break; case MUS_AIFC: return("AIFC"); break; case MUS_RIFF: return("RIFF"); break; case MUS_BICSF: return("BICSF"); break; case MUS_NIST: return("NIST"); break; case MUS_INRS: return("INRS"); break; case MUS_ESPS: return("ESPS"); break; case MUS_SVX: return("SVX8"); break; case MUS_VOC: return("VOC"); break; case MUS_SNDT: return("SNDT"); break; case MUS_SOX: return("Sox"); break; case MUS_RAW: return("raw (no header)"); break; case MUS_SMP: return("SMP"); break; case MUS_AVR: return("AVR"); break; case MUS_IRCAM: return("IRCAM"); break; case MUS_SD1: return("Sound Designer 1"); break; case MUS_SPPACK: return("SPPACK"); break; case MUS_MUS10: return("Mus10"); break; case MUS_HCOM: return("HCOM"); break; case MUS_PSION: return("PSION"); break; case MUS_MAUD: return("MAUD"); break; case MUS_IEEE: return("IEEE text"); break; case MUS_MATLAB: return("Matlab"); break; case MUS_ADC: return("ADC/OGI"); break; case MUS_MIDI: return("MIDI"); break; case MUS_SOUNDFONT: return("SoundFont"); break; case MUS_GRAVIS: return("Gravis Ultrasound patch"); break; case MUS_COMDISCO: return("Comdisco SPW signal"); break; case MUS_GOLDWAVE: return("Goldwave sample"); break; case MUS_SRFS: return("SRFS"); break; case MUS_MIDI_SAMPLE_DUMP: return("MIDI sample dump"); break; case MUS_DIAMONDWARE: return("DiamondWare"); break; case MUS_ADF: return("CSRE adf"); break; case MUS_SBSTUDIOII: return("SBStudioII"); break; case MUS_DELUSION: return("Delusion"); break; case MUS_FARANDOLE: return("Farandole"); break; case MUS_SAMPLE_DUMP: return("Sample dump"); break; case MUS_ULTRATRACKER: return("Ultratracker"); break; case MUS_YAMAHA_TX16W: return("TX-16W"); break; case MUS_YAMAHA_SY85: return("Sy-85"); break; case MUS_YAMAHA_SY99: return("Sy-99"); break; case MUS_KURZWEIL_2000: return("Kurzweil 2000"); break; case MUS_KORG: return("Korg"); break; case MUS_MAUI: return("Turtle Beach"); break; case MUS_IMPULSETRACKER: return("Impulse Tracker"); break; case MUS_AKAI4: return("AKAI 4"); break; case MUS_DIGIPLAYER: return("Digiplayer ST3"); break; case MUS_COVOX: return("Covox V8"); break; case MUS_AVI: return("AVI"); break; case MUS_OMF: return("OMF"); break; case MUS_QUICKTIME: return("Quicktime"); break; case MUS_ASF: return("asf"); break; case MUS_AIFF: return("AIFF"); break; case MUS_PAF: return("Ensoniq Paris"); break; case MUS_CSL: return("CSL"); break; case MUS_FILE_SAMP: return("snack SMP"); break; case MUS_PVF: return("Portable Voice Format"); break; case MUS_SOUNDFORGE: return("SoundForge"); break; case MUS_TWINVQ: return("TwinVQ"); break; case MUS_SDIF: return("IRCAM sdif"); break; #if G7XX case MUS_NVF: return("Creative NVF"); break; #endif case MUS_OGG: return("Ogg Vorbis"); break; case MUS_FLAC: return("Flac"); break; case MUS_SPEEX: return("Speex"); break; case MUS_MPEG: return("mpeg"); break; case MUS_SHORTEN: return("shorten"); break; case MUS_TTA: return("tta"); break; case MUS_WAVPACK: return("wavpack"); break; case MUS_RF64: return("rf64"); break; case MUS_CAFF: return("caff"); break; default: return("unknown"); break; } } const char *mus_sample_type_name(mus_sample_t samp_type) { switch (samp_type) { case MUS_BSHORT: return("big endian short (16 bits)"); break; case MUS_MULAW: return("mulaw (8 bits)"); break; case MUS_BYTE: return("signed byte (8 bits)"); break; case MUS_BFLOAT: return("big endian float (32 bits)"); break; case MUS_BFLOAT_UNSCALED: return("big endian float (32 bits, unscaled)"); break; case MUS_BINT: return("big endian int (32 bits)"); break; case MUS_ALAW: return("alaw (8 bits)"); break; case MUS_UBYTE: return("unsigned byte (8 bits)"); break; case MUS_B24INT: return("big endian int (24 bits)"); break; case MUS_BDOUBLE: return("big endian double (64 bits)"); break; case MUS_BDOUBLE_UNSCALED: return("big endian double (64 bits, unscaled)"); break; case MUS_LSHORT: return("little endian short (16 bits)"); break; case MUS_LINT: return("little endian int (32 bits)"); break; case MUS_LFLOAT: return("little endian float (32 bits)"); break; case MUS_LDOUBLE: return("little endian double (64 bits)"); break; case MUS_LFLOAT_UNSCALED: return("little endian float (32 bits, unscaled)"); break; case MUS_LDOUBLE_UNSCALED: return("little endian double (64 bits, unscaled)"); break; case MUS_UBSHORT: return("unsigned big endian short (16 bits)"); break; case MUS_ULSHORT: return("unsigned little endian short (16 bits)"); break; case MUS_L24INT: return("little endian int (24 bits)"); break; case MUS_BINTN: return("normalized big endian int (32 bits)"); break; case MUS_LINTN: return("normalized little endian int (32 bits)"); break; default: return("unknown"); break; } } const char *mus_sample_type_short_name(mus_sample_t samp_type) { switch (samp_type) { case MUS_BSHORT: return("short int"); break; case MUS_MULAW: return("mulaw"); break; case MUS_BYTE: return("signed byte"); break; case MUS_BFLOAT: return("float"); break; case MUS_BFLOAT_UNSCALED: return("float unscaled)"); break; case MUS_BINT: return("int"); break; case MUS_ALAW: return("alaw"); break; case MUS_UBYTE: return("unsigned byte"); break; case MUS_B24INT: return("24-bit int"); break; case MUS_BDOUBLE: return("double"); break; case MUS_BDOUBLE_UNSCALED: return("double unscaled"); break; case MUS_LSHORT: return("short int"); break; case MUS_LINT: return("int"); break; case MUS_LFLOAT: return("float"); break; case MUS_LDOUBLE: return("double"); break; case MUS_LFLOAT_UNSCALED: return("float unscaled"); break; case MUS_LDOUBLE_UNSCALED: return("double unscaled"); break; case MUS_UBSHORT: return("unsigned short"); break; case MUS_ULSHORT: return("unsigned short"); break; case MUS_L24INT: return("24-bit int"); break; case MUS_BINTN: return("normalized int"); break; case MUS_LINTN: return("normalized int"); break; default: return("unknown"); break; } } #if HAVE_RUBY #define TO_LANG(Str) (const char *)xen_scheme_constant_to_ruby(Str) #else #define TO_LANG(Str) Str #endif const char *mus_header_type_to_string(mus_header_t type) { switch (type) { case MUS_NEXT: return(TO_LANG(S_mus_next)); case MUS_AIFF: return(TO_LANG(S_mus_aiff)); case MUS_AIFC: return(TO_LANG(S_mus_aifc)); case MUS_RIFF: return(TO_LANG(S_mus_riff)); case MUS_NIST: return(TO_LANG(S_mus_nist)); case MUS_IRCAM: return(TO_LANG(S_mus_ircam)); case MUS_RAW: return(TO_LANG(S_mus_raw)); case MUS_BICSF: return(TO_LANG(S_mus_bicsf)); case MUS_VOC: return(TO_LANG(S_mus_voc)); case MUS_SVX: return(TO_LANG(S_mus_svx)); case MUS_SOUNDFONT: return(TO_LANG(S_mus_soundfont)); case MUS_RF64: return(TO_LANG(S_mus_rf64)); case MUS_CAFF: return(TO_LANG(S_mus_caff)); default: break; } return(NULL); } const char *mus_sample_type_to_string(mus_sample_t samp_type) { switch (samp_type) { case MUS_BSHORT: return(TO_LANG(S_mus_bshort)); case MUS_LSHORT: return(TO_LANG(S_mus_lshort)); case MUS_MULAW: return(TO_LANG(S_mus_mulaw)); case MUS_ALAW: return(TO_LANG(S_mus_alaw)); case MUS_BYTE: return(TO_LANG(S_mus_byte)); case MUS_UBYTE: return(TO_LANG(S_mus_ubyte)); case MUS_BFLOAT: return(TO_LANG(S_mus_bfloat)); case MUS_LFLOAT: return(TO_LANG(S_mus_lfloat)); case MUS_BINT: return(TO_LANG(S_mus_bint)); case MUS_LINT: return(TO_LANG(S_mus_lint)); case MUS_BINTN: return(TO_LANG(S_mus_bintn)); case MUS_LINTN: return(TO_LANG(S_mus_lintn)); case MUS_B24INT: return(TO_LANG(S_mus_b24int)); case MUS_L24INT: return(TO_LANG(S_mus_l24int)); case MUS_BDOUBLE: return(TO_LANG(S_mus_bdouble)); case MUS_LDOUBLE: return(TO_LANG(S_mus_ldouble)); case MUS_UBSHORT: return(TO_LANG(S_mus_ubshort)); case MUS_ULSHORT: return(TO_LANG(S_mus_ulshort)); case MUS_BDOUBLE_UNSCALED: return(TO_LANG(S_mus_bdouble_unscaled)); case MUS_LDOUBLE_UNSCALED: return(TO_LANG(S_mus_ldouble_unscaled)); case MUS_BFLOAT_UNSCALED: return(TO_LANG(S_mus_bfloat_unscaled)); case MUS_LFLOAT_UNSCALED: return(TO_LANG(S_mus_lfloat_unscaled)); default: break; } return(NULL); } static const char *any_sample_type_name(mus_sample_t sndlib_samp_type) { if (mus_is_sample_type(sndlib_samp_type)) return(mus_sample_type_name(sndlib_samp_type)); else return(mus_header_original_sample_type_name(mus_header_original_sample_type(), mus_header_type())); } #define SEEK_FILE_LENGTH(File) lseek(File, 0L, SEEK_END) static int read_bicsf_header(const char *filename, int fd); /* ------------------------------------ NeXT (or Sun) -------------------------------- * * 0: ".snd" * 4: data_location (bytes) (not necessarily word aligned on Sun) * 8: data_size (bytes) -- sometimes incorrect ("advisory") * 12: sample type indicator -- see below * 16: srate (int) * 20: chans * 24: comment start * * in an AFsp file, the first 4 bytes of the comment are "AFsp", * for bicsf, the integer at 28 is 107364 or 107415 * * on NeXTStep, always big-endian. ".snd"==0x2e736e64 on big-endian machines. * * formats are: * 0 unspecified, 1 mulaw_8, 2 linear_8, 3 linear_16, 4 linear_24, 5 linear_32, 6 float, * 7 double, 8 indirect, 9 nested, 10 dsp_core, 11 dsp_data_8, 12 dsp_data_16, 13 dsp_data_24, * 14 dsp_data_32, 16 display, 17 mulaw_squelch, 18 emphasized, 19 compressed, 20 compressed_emphasized * 21 dsp_commands, 22 dsp_commands_samples, 23 adpcm_g721, 24 adpcm_g722, 25 adpcm_g723, * 26 adpcm_g723_5, 27 alaw_8, 28 aes, 29 delat_mulaw_8 * internal Snd(lib)-only formats: * 30: mus_lint, 31: mus_lfloat, * 32: mus_bintn, 33: mus_lintn, * 34: mus_ldouble and others... (added by me for Snd internal use) */ /* according to the file /usr/share/magic, the DECN versions were little endian */ static int read_next_header(const char *filename, int fd) { int maybe_bicsf, err = MUS_NO_ERROR, i; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); data_location = mus_char_to_ubint((unsigned char *)(hdrbuf + 4)); if (data_location < 24) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data location: %lld?", filename, data_location)); data_size = mus_char_to_ubint((unsigned char *)(hdrbuf + 8)); /* changed to unsigned 11-Nov-06 */ /* can be bogus -- fixup if possible */ true_file_length = SEEK_FILE_LENGTH(fd); if ((data_size <= 24) || (data_size > true_file_length)) data_size = (true_file_length - data_location); else { if (true_file_length > (mus_long_t)0x80000000) /* (1 << 31)) */ data_size = true_file_length - data_location; /* assume size field overflowed 32 bits */ } original_sample_type = mus_char_to_bint((unsigned char *)(hdrbuf + 12)); switch (original_sample_type) { case 1: sample_type = MUS_MULAW; break; case 2: sample_type = MUS_BYTE; break; /* some sound files assume MUS_UBYTE here! (NAS from 1994 X11R6 contrib) */ case 3: sample_type = MUS_BSHORT; break; case 4: sample_type = MUS_B24INT; break; case 5: sample_type = MUS_BINT; break; case 6: sample_type = MUS_BFLOAT; break; case 7: sample_type = MUS_BDOUBLE; break; case 18: sample_type = MUS_BSHORT; break; /* "emphasized": Xavier Serra's de-emphasis filter: y(n) = x(n) + .9 y(n-1) */ case 27: sample_type = MUS_ALAW; break; case 30: sample_type = MUS_LINT; break; /* from here on, for Snd's internal benefit -- these are probably not used elsewhere */ case 31: sample_type = MUS_LFLOAT; break; case 32: sample_type = MUS_BINTN; break; case 33: sample_type = MUS_LINTN; break; case 34: sample_type = MUS_LDOUBLE; break; case 35: sample_type = MUS_ULSHORT; break; case 36: sample_type = MUS_UBSHORT; break; case 37: sample_type = MUS_LFLOAT_UNSCALED; break; case 38: sample_type = MUS_BFLOAT_UNSCALED; break; case 39: sample_type = MUS_LDOUBLE_UNSCALED; break; case 40: sample_type = MUS_BDOUBLE_UNSCALED; break; case 41: sample_type = MUS_LSHORT; break; case 42: sample_type = MUS_L24INT; break; case 43: sample_type = MUS_UBYTE; break; default: sample_type = MUS_UNKNOWN_SAMPLE; break; } srate = mus_char_to_bint((unsigned char *)(hdrbuf + 16)); chans = mus_char_to_bint((unsigned char *)(hdrbuf + 20)); comment_start = 0; comment_end = 0; for (i = 24; i < data_location - 1; i++) if (hdrbuf[i] == '\0') break; else { if (hdrbuf[i] != ' ') { comment_start = i; comment_end = data_location - 1; break; } } if (comment_end < comment_start) comment_end = comment_start; maybe_bicsf = mus_char_to_bint((unsigned char *)(hdrbuf + 28)); if (maybe_bicsf == 107364) err = read_bicsf_header(filename, fd); data_size = mus_bytes_to_samples(sample_type, data_size); return(err); } static int sndlib_format_to_next(mus_sample_t samp_type) { switch (samp_type) { case MUS_MULAW: return(1); break; case MUS_BYTE: return(2); break; case MUS_BSHORT: return(3); break; case MUS_B24INT: return(4); break; case MUS_BINT: return(5); break; case MUS_BFLOAT: return(6); break; case MUS_BDOUBLE: return(7); break; case MUS_ALAW: return(27); break; case MUS_LINT: return(30); break; /* see above */ case MUS_LFLOAT: return(31); break; case MUS_BINTN: return(32); break; case MUS_LINTN: return(33); break; case MUS_LDOUBLE: return(34); break; case MUS_ULSHORT: return(35); break; case MUS_UBSHORT: return(36); break; case MUS_LFLOAT_UNSCALED: return(37); break; case MUS_BFLOAT_UNSCALED: return(38); break; case MUS_LDOUBLE_UNSCALED: return(39); break; case MUS_BDOUBLE_UNSCALED: return(40); break; case MUS_LSHORT: return(41); break; case MUS_L24INT: return(42); break; case MUS_UBYTE: return(43); break; default: return(mus_error(MUS_UNSUPPORTED_SAMPLE_TYPE, "Next header: can't write sample type: %d (%s)", samp_type, any_sample_type_name(samp_type))); break; } } static int header_write(int fd, unsigned char *buf, int chars) { if (chars > 0) { long long int bytes; bytes = (long long int)write(fd, buf, chars); if (bytes != chars) { char *errstr = NULL; errstr = STRERROR(errno); return(mus_error(MUS_WRITE_ERROR, "header_write: wrote %lld of %d bytes, %s", bytes, chars, (errstr) ? errstr : "unknown error?")); } } return(MUS_NO_ERROR); } static int header_read(int fd, unsigned char *buf, int chars) { if (chars > 0) { long long int bytes; bytes = (long long int)read(fd, buf, chars); if (bytes != chars) { char *errstr = NULL; errstr = STRERROR(errno); return(mus_error(MUS_READ_ERROR, "header_read: read %lld of %d bytes, %s", bytes, chars, (errstr) ? errstr : "unknown error?")); } } return(MUS_NO_ERROR); } static void write_next_comment(int fd, const char *comment, int len, int loc) { if (len > 0) header_write(fd, (unsigned char *)comment, len); len = loc - (len + 24); if (len > 0) { unsigned char *combuf; combuf = (unsigned char *)calloc(len, sizeof(unsigned char)); header_write(fd, combuf, len); free(combuf); } } static int mus_header_write_next_header(int fd, int wsrate, int wchans, int loc, int siz, mus_sample_t samp_type, const char *comment, int len) { int i, j; write_four_chars((unsigned char *)hdrbuf, I_DSND); /* ".snd" */ i = len / 4; j = 24 + (4 * (i + 1)); if (loc < j) loc = j; mus_bint_to_char((unsigned char *)(hdrbuf + 4), loc); mus_bint_to_char((unsigned char *)(hdrbuf + 8), siz); mus_bint_to_char((unsigned char *)(hdrbuf + 12), sndlib_format_to_next(samp_type)); mus_bint_to_char((unsigned char *)(hdrbuf + 16), wsrate); mus_bint_to_char((unsigned char *)(hdrbuf + 20), wchans); header_write(fd, hdrbuf, 24); write_next_comment(fd, comment, len, loc); data_location = loc; return(MUS_NO_ERROR); } /* ------------------------------------ AIFF ------------------------------------ * * 0: "FORM" * 4: size (bytes) * 8: "AIFF" or "AIFC" -- the latter includes compressed formats (list extended for 8.5 Sound.h) * * Thereafter the file is organized into "chunks", each chunk being * a 4-byte identifer followed by an int (4-bytes) giving the chunk size * not including the 8-byte header. AIFF data is signed. If the chunk * size is odd, an extra (unaccounted-for) null byte is added at the end. * * The chunks we want are "COMM", "SSND", and "APPL". * * COMM: 0: chans * 2: framples * 6: bits per sample * 8: srate as 80-bit IEEE float * then if AIFC (not AIFF), 4 bytes giving compression id ("NONE"=not compressed) * followed by Pascal string giving long name of compression type * * SSND: 0: data location (offset within SSND chunk) * * Other chunks include: ANNO: a comment, INST: loop control, MARK: marker, MIDI: midi, * COMT: comment (max 65536 chars), NAME: sound name, AUTH: author's name * (c), AESD: recording data, APPL: application specific stuff * "MARK" size short-#marks {marks} -- latter are short-ID long-position pstring-name. * "INST" size chars[baseNote detune lowNote highNote lowVelocity HighVelocity] short-gain loops[sustain release] * loop: short-playMode marker-begin marker-end (signed?) shorts) * playMode: 0 no loop, 1 forward loop, 2 forward/backward loop * chars are MIDI data (detune is in cents) * "MIDI" size MIDI-data... * "AESD" size AES Channel Status Data (24 bytes as specified by AES) * see "AES: Guidelines for the use of the AES3 interface" * byte 0: bit 0: 0 = consumer, 1 = pro * bit 1: 0 = audio, 1 = non-audio * bits 2:4: emphasis: 0:none, 4:none, 6:CD, 7:CCITT J17 * bits 6:7: srate: 00 = 48KHz, 01 = 48, 10 = 44.1, 11 = 32 * byte 1: bits 0:3: chans: 2:mono, else stereo * byte 2 for word size stuff (always ends up 16-bit): bits 3-5 = sample length where 4 = 16-bit * byte 3: multi-channels modes, 4: AES sync ref, 5:unused, 6-9:ASCII source ID, 10-13:ASCII destination ID * byte 14-17:local sample addr, 18-21:time of day addr, then CRC checks * "APPL" size signature data * "COMT" size short-#comments {comments} -- the latter are long-time marker short-text-length char-text * time is in seconds since 1-Jan-1904 * "NAME"/"AUTH"/"(c) "/"ANNO" size char-name * "FVER" size(4) AIFC-format-version -- currently always 0xA2805140 * "SAXL" -- a desperate kludge to get around Apple's own compression schemes! * * always big-endian * There was also (briefly) an AIFS file, now deprecated. */ /* ieee-80 conversions -- design by committee! */ /* this code taken from CSound sources -- apparently originally written by Malcolm Slaney at Apple */ #define ULPOW2TO31 ((unsigned int)0x80000000) #define DPOW2TO31 ((double)2147483648.0) /* 2^31 */ static double myUlongToDouble(unsigned int ul) { double val; if (ul & ULPOW2TO31) val = DPOW2TO31 + (ul & (~ULPOW2TO31)); else val = ul; return val; } static unsigned int myDoubleToUlong(double val) { unsigned int ul; if (val < DPOW2TO31) ul = (unsigned int)val; else ul = ULPOW2TO31 | (unsigned int)(val-DPOW2TO31); return ul; } static double ieee_80_to_double(unsigned char *p) { unsigned char sign; short lexp = 0; unsigned int mant1 = 0; unsigned int mant0 = 0; lexp = *p++; lexp <<= 8; lexp |= *p++; sign = (lexp & 0x8000) ? 1 : 0; lexp &= 0x7FFF; mant1 = *p++; mant1 <<= 8; mant1 |= *p++; mant1 <<= 8; mant1 |= *p++; mant1 <<= 8; mant1 |= *p++; mant0 = *p++; mant0 <<= 8; mant0 |= *p++; mant0 <<= 8; mant0 |= *p++; mant0 <<= 8; mant0 |= *p++; if (mant1 == 0 && mant0 == 0 && lexp == 0 && sign == 0) return 0.0; else { double val; val = myUlongToDouble(mant0) * pow(2.0, -63.0); val += myUlongToDouble(mant1) * pow(2.0, -31.0); val *= pow(2.0, ((double) lexp) - 16383.0); return sign ? -val : val; } } static void double_to_ieee_80(double val, unsigned char *p) { short lexp = 0; unsigned char sign = 0; unsigned int mant1 = 0; unsigned int mant0 = 0; if (val < 0.0) { sign = 1; val = -val; } if (val != 0.0) /* val identically zero -> all elements zero */ { lexp = (short)(log(val) / log(2.0) + 16383.0); val *= pow(2.0, 31.0 + 16383.0 - (double)lexp); mant1 = myDoubleToUlong(val); val -= myUlongToDouble(mant1); val *= pow(2.0, 32.0); mant0 = myDoubleToUlong(val); } *p++ = ((sign << 7) | (lexp >> 8)); *p++ = 0xFF & lexp; *p++ = 0xFF & (mant1 >> 24); *p++ = 0xFF & (mant1 >> 16); *p++ = 0xFF & (mant1 >> 8); *p++ = 0xFF & (mant1); *p++ = 0xFF & (mant0 >> 24); *p++ = 0xFF & (mant0 >> 16); *p++ = 0xFF & (mant0 >> 8); *p++ = 0xFF & (mant0); } static mus_long_t update_form_size, update_framples_location, update_ssnd_location, update_rf64_location; static long long int seek_and_read(int fd, unsigned char *buf, mus_long_t offset, int nbytes) { if (offset < 0) return(-1); lseek(fd, offset, SEEK_SET); return(read(fd, buf, nbytes)); } static int read_aiff_marker(int m, unsigned char *buf) { int psize; marker_ids[m] = mus_char_to_bshort((unsigned char *)buf); marker_positions[m] = mus_char_to_bint((unsigned char *)(buf + 2)); psize = (int)buf[6] + 1; if (psize & 1) psize++; return(psize+6); } static void read_aif_mark_chunk(int fd, unsigned char *buf, mus_long_t offset) { int num_marks, m, moff, msize; /* unsigned short #marks, each mark: id pos name (pstring damn it) */ num_marks = mus_char_to_ubshort((unsigned char *)(buf + 8)); if (num_marks > markers) { if (markers > 0) { if (marker_ids) free(marker_ids); if (marker_positions) free(marker_positions); } markers = num_marks; marker_ids = (int *)calloc(markers, sizeof(int)); marker_positions = (int *)calloc(markers, sizeof(int)); } moff = 10; for (m = 0; m < num_marks; m++) { if (seek_and_read(fd, (unsigned char *)buf, offset + moff, 8) > 0) { msize = read_aiff_marker(m, (unsigned char *)buf); moff += msize; } } } static void read_aif_inst_chunk(unsigned char *buf) { base_note = buf[8]; base_detune = buf[9]; loop_modes[0] = mus_char_to_bshort((unsigned char *)(buf + 16)); loop_starts[0] = mus_char_to_bshort((unsigned char *)(buf + 18)); loop_ends[0] = mus_char_to_bshort((unsigned char *)(buf + 20)); loop_modes[1] = mus_char_to_bshort((unsigned char *)(buf + 22)); loop_starts[1] = mus_char_to_bshort((unsigned char *)(buf + 24)); loop_ends[1] = mus_char_to_bshort((unsigned char *)(buf + 26)); /* these are mark numbers */ } static void read_aif_aux_comment(unsigned char *buf, mus_long_t offset, int chunksize) { int i, j = 0; for (i = 0; i < AUX_COMMENTS; i++) if (aux_comment_start[i] == 0) { j = i; break; } if (j >= AUX_COMMENTS) { mus_print("read_aiff_header: ran out of auxiliary comment space"); j = 0; } aux_comment_start[j] = offset + 8; if (match_four_chars((unsigned char *)buf, I_COMT)) aux_comment_start[j] += 8; /* skip time stamp and markerId (not ID, I assume!) */ aux_comment_end[j] = offset + 7 + chunksize; } static void read_aif_appl_chunk(unsigned char *buf, mus_long_t offset, int chunksize) { static const unsigned char I_SU7M[4] = {'S','U','7','M'}; static const unsigned char I_SU7R[4] = {'S','U','7','R'}; if (match_four_chars((unsigned char *)(buf + 8), I_MUS_)) { /* my chunk has an arbitrary length comment (a lisp program evaluated in the CLM package) * to handle mix et al. Can't use the built-in chunk for this because the comment length might * be greater than 65536 chars. Need to remember to pad to even length here. */ comment_start = offset + 12; comment_end = comment_start + chunksize - 5; } else { if ((match_four_chars((unsigned char *)(buf + 8), I_SU7M)) || (match_four_chars((unsigned char *)(buf + 8), I_SU7R))) { mus_print("this is an SU700 ssp file?"); data_location = 512; chans = 1; /* actually SU7M and SU7R point to 2 chan data as separate chunks */ } } } static int read_aiff_header(const char *filename, int fd, int overall_offset) { /* we know we have checked for FORM xxxx AIFF|AIFC when we arrive here */ /* as far as I can tell, the COMM block has the header data we seek, and the SSND block has the sound data */ int chunkloc, i, ssnd_bytes = 0; bool happy = true, got_comm = false; mus_long_t offset = 0; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 8 + overall_offset)); update_ssnd_location = 0; chunkloc = 12 + overall_offset; for (i = 0; i < AUX_COMMENTS; i++) aux_comment_start[i] = 0; sample_type = MUS_BSHORT; srate = 0; chans = 0; markers = 0; if (marker_ids) free(marker_ids); if (marker_positions) free(marker_positions); marker_ids = NULL; marker_positions = NULL; true_file_length = SEEK_FILE_LENGTH(fd); update_form_size = mus_char_to_ubint((unsigned char *)(hdrbuf + 4 + overall_offset)); /* should be file-size - 8 unless there are multiple forms */ while (happy) { int chunksize; offset += chunkloc; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 32) <= 0) { if ((got_comm) && (data_location > 0)) { mus_print("%s, aiff header: chunks confused at %lld; will try to continue", filename, offset); break; } return(mus_error(MUS_HEADER_READ_FAILED, "%s, aiff header: chunks confused at %lld" , filename, offset)); } chunksize = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); if ((chunksize == 0) && /* can be empty data chunk */ (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) break; if (chunksize < 0) break; /* fprintf(stderr, "chunk: %c%c%c%c for %d\n", hdrbuf[0], hdrbuf[1], hdrbuf[2], hdrbuf[3], chunksize); */ if (match_four_chars((unsigned char *)hdrbuf, I_COMM)) { int framples; got_comm = true; chans = mus_char_to_bshort((unsigned char *)(hdrbuf + 8)); framples = mus_char_to_ubint((unsigned char *)(hdrbuf + 10)); /* was bint 27-Jul-01 */ update_framples_location = 10 + offset; original_sample_type = mus_char_to_bshort((unsigned char *)(hdrbuf + 14)); if ((original_sample_type % 8) != 0) { /* weird sizes are legal -- * these samples are left-justified (and zero padded on the right), so * we can handle any bit size by rounding up to the nearest byte. */ original_sample_type = 8 * (1 + (original_sample_type >> 3)); } if (original_sample_type == 8) sample_type = MUS_BYTE; else if (original_sample_type == 16) sample_type = MUS_BSHORT; else if (original_sample_type == 24) sample_type = MUS_B24INT; else if (original_sample_type == 32) sample_type = MUS_BINT; else if (original_sample_type == 64) sample_type = MUS_BDOUBLE; else return(mus_error(MUS_HEADER_READ_FAILED, "%s: bits per sample: %d?", filename, mus_char_to_bshort((unsigned char *)(hdrbuf + 14)))); srate = (int)ieee_80_to_double((unsigned char *)(hdrbuf + 16)); /* if AIFC, compression type over-rides (possibly bogus) original_sample_type */ if (type_specifier == mus_char_to_uninterpreted_int((unsigned const char *)I_AIFC)) { static const unsigned char I_twos[4] = {'t','w','o','s'}; /* AIFC big endian? */ /* some aifc files assume the compression field is a new and very weird chunk!! -- surely a bug? */ /* AIFF spec says COMM size is always 18, but this is amended in the newer AIFC spec */ if (chunksize == 18) chunksize += (5 + ((int)hdrbuf[30])); /* 5 = chunk header length in this case */ if ((!(match_four_chars((unsigned char *)(hdrbuf + 26), I_NONE))) && (!(match_four_chars((unsigned char *)(hdrbuf + 26), I_twos)))) { static const unsigned char I_ALAW[4] = {'A','L','A','W'}; original_sample_type = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 26)); if ((match_four_chars((unsigned char *)(hdrbuf + 26), I_ALAW)) || (match_four_chars((unsigned char *)(hdrbuf + 26), I_alaw))) sample_type = MUS_ALAW; else { if ((match_four_chars((unsigned char *)(hdrbuf + 26), I_ULAW)) || (match_four_chars((unsigned char *)(hdrbuf + 26), I_ulaw))) sample_type = MUS_MULAW; else { static const unsigned char I_ni23[4] = {'n','i','2','3'}; if ((match_four_chars((unsigned char *)(hdrbuf + 26), I_sowt)) || (match_four_chars((unsigned char *)(hdrbuf + 26), I_ni23))) { /* Sound.h sez sowt is just 16-bit format */ if (sample_type == MUS_BSHORT) sample_type = MUS_LSHORT; else if (sample_type == MUS_B24INT) sample_type = MUS_L24INT; else if (sample_type == MUS_BINT) sample_type = MUS_LINT; } else { if (match_four_chars((unsigned char *)(hdrbuf + 26), I_raw_)) { if (sample_type == MUS_BYTE) sample_type = MUS_UBYTE; else if (sample_type == MUS_BSHORT) sample_type = MUS_UBSHORT; } else { unsigned char I_FL32[4] = {'F','L','3','2'}; /* 32-bit float (apparently used by CSound and SoundHack) */ if ((match_four_chars((unsigned char *)(hdrbuf + 26), I_fl32)) || (match_four_chars((unsigned char *)(hdrbuf + 26), I_FL32))) sample_type = MUS_BFLOAT; else { if (match_four_chars((unsigned char *)(hdrbuf + 26), I_fl64)) sample_type = MUS_BDOUBLE; else { static const unsigned char I_ima4[4] = {'i','m','a','4'}; /* AIFC IMA adpcm apparently */ if (match_four_chars((unsigned char *)(hdrbuf + 26), I_ima4)) { block_align = 34; original_sample_type = MUS_AIFF_IMA_ADPCM; } else { static const unsigned char I_in32[4] = {'i','n','3','2'}; if (match_four_chars((unsigned char *)(hdrbuf + 26), I_in32)) sample_type = MUS_BINT; else { static const unsigned char I_in24[4] = {'i','n','2','4'}; if (match_four_chars((unsigned char *)(hdrbuf + 26), I_in24)) sample_type = MUS_B24INT; else { /* others from Sound.h: 0x6D730002, -- Microsoft ADPCM - ACM code 2 0x6D730011, -- DVI/Intel IMA ADPCM - ACM code 17 'MAC3' -- MACE 3:1 'MAC6' -- MACE 6:1 'cdx4' -- CD/XA 4:1 'cdx2' -- CD/XA 2:1 'dvca' -- DV Audio 'QDMC' -- QDesign music 'QDM2' -- QDesign2 music 'Qclp' -- QUALCOMM PureVoice 0x6D730055 -- MPEG Layer 3, CBR only (pre QT4.1) '.mp3' -- MPEG Layer 3, CBR & VBR (QT4.1 and later) openquicktime and ffmpeg have decoders for some of these; all too complex for my taste on a Mac, we could apparently pick up decoders from coreaudio */ sample_type = MUS_UNKNOWN_SAMPLE; } } } } } } } } } } } data_size = (framples * mus_bytes_per_sample(sample_type) * chans); } else { if (match_four_chars((unsigned char *)hdrbuf, I_SSND)) { if (data_location != 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: two SSND chunks found", filename)); update_ssnd_location = offset + 4; data_location = mus_char_to_bint((unsigned char *)(hdrbuf + 8)) + offset + 16; /* Baroque! */ /* offset is where the hdrbuf is positioned in the file, the sound data offset itself is at loc+8 and the */ /* 0-based location of the sound data is at the end of the chunk = 16 (8 = header+4 = offset+4 = blocksize) */ /* the next int can be the block size if the data is block-aligned */ /* only one SSND per AIFF is allowed */ if (chunksize == 0) break; /* this may happen while pre-reading an in-progress output file for updating */ ssnd_bytes = offset + chunksize - data_location + 8; } else { static const unsigned char I_AUTH[4] = {'A','U','T','H'}; if ((match_four_chars((unsigned char *)hdrbuf, I_ANNO)) || (match_four_chars((unsigned char *)hdrbuf, I_COMT)) || (match_four_chars((unsigned char *)hdrbuf, I_NAME)) || (match_four_chars((unsigned char *)hdrbuf, I_AUTH))) read_aif_aux_comment(hdrbuf, offset, chunksize); else { if (match_four_chars((unsigned char *)hdrbuf, I_APPL)) read_aif_appl_chunk(hdrbuf, offset, chunksize); else { if (match_four_chars((unsigned char *)hdrbuf, I_INST)) read_aif_inst_chunk(hdrbuf); else { if (match_four_chars((unsigned char *)hdrbuf, I_MARK)) read_aif_mark_chunk(fd, hdrbuf, offset); } } } } } chunkloc = (8 + chunksize); if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ if ((offset + chunkloc) >= update_form_size) happy = false; } if (!got_comm) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no COMM chunk", filename)); if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no SSND (data) chunk", filename)); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } if ((data_size > ssnd_bytes) && (sample_type != MUS_UNKNOWN_SAMPLE)) data_size = ssnd_bytes; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } static int sndlib_format_to_aiff_bits(mus_sample_t samp_type) { switch (samp_type) { case MUS_BSHORT: case MUS_LSHORT: case MUS_UBSHORT: case MUS_ULSHORT: return(16); break; case MUS_B24INT: case MUS_L24INT: return(24); break; case MUS_BINT: case MUS_LINT: case MUS_BFLOAT: case MUS_LFLOAT: return(32); break; case MUS_BDOUBLE: case MUS_LDOUBLE: return(64); break; case MUS_BYTE: case MUS_UBYTE: case MUS_MULAW: case MUS_ALAW: return(8); break; default: return(mus_error(MUS_UNSUPPORTED_SAMPLE_TYPE, "aiff header: can't write sample type: %d (%s)", samp_type, any_sample_type_name(samp_type))); break; } } static const char *sndlib_format_to_aifc_name(mus_sample_t samp_type) { switch (samp_type) { case MUS_BSHORT: case MUS_B24INT: case MUS_BINT: case MUS_BYTE: return((const char *)I_NONE); break; /* use in24 and in32? */ case MUS_LSHORT: case MUS_L24INT: case MUS_LINT: return((const char *)I_sowt); break; /* should this use ni23? */ case MUS_BFLOAT: return((const char *)I_fl32); break; case MUS_BDOUBLE: return((const char *)I_fl64); break; case MUS_UBYTE: case MUS_UBSHORT: return((const char *)I_raw_); break; case MUS_MULAW: return((const char *)I_ulaw); break; case MUS_ALAW: return((const char *)I_alaw); break; default: return((const char *)I_NONE); break; } } static int write_aif_header(int fd, int wsrate, int wchans, int siz, mus_sample_t samp_type, const char *comment, int len, bool aifc_header) { /* we write the simplest possible AIFC header: AIFC | COMM | APPL-MUS_ if needed | SSND eof. */ /* the assumption being that we're going to be appending sound data once the header is out */ /* INST and MARK chunks added Jul-95 for various programs that expect them (MixView). */ /* set aifc_header to false to get old-style AIFF header */ int i, j, lenhdr = 0, lenloop, curend = 0, extra = 0; lenloop = 38; if ((loop_modes[0] != 0) || (loop_modes[1] != 0)) lenloop = 42 + 28; if (len != 0) { lenhdr = 12; if ((len % 4) != 0) extra = (4 - (len % 4)); } write_four_chars((unsigned char *)hdrbuf, I_FORM); if (aifc_header) mus_bint_to_char((unsigned char *)(hdrbuf + 4), len + 30 + 16 + lenloop + siz + lenhdr + extra + 12 + 10); else mus_bint_to_char((unsigned char *)(hdrbuf + 4), len + 30 + 16 + lenloop + siz + lenhdr + extra); /* * comment length + 4 for AIFF 18+8 for I_COMM info + 16 for I_SSND info + 38 for INST and MARK + * siz for data + 12 for comment header if any + padding == total size - 8 (i.e. FORM header). * INST+MARK (38) added 3-Jul-95 for Notam software compatibility */ if (aifc_header) { static const unsigned char I_FVER[4] = {'F','V','E','R'}; write_four_chars((unsigned char *)(hdrbuf + 8), I_AIFC); header_write(fd, hdrbuf, 12); curend = 12; write_four_chars((unsigned char *)hdrbuf, I_FVER); mus_bint_to_char((unsigned char *)(hdrbuf + 4), 4); mus_bint_to_char((unsigned char *)(hdrbuf + 8), 0xA2805140); } else write_four_chars((unsigned char *)(hdrbuf + 8), I_AIFF); write_four_chars((unsigned char *)(hdrbuf + 12), I_COMM); if (aifc_header) mus_bint_to_char((unsigned char *)(hdrbuf + 16), 18 + 10); else mus_bint_to_char((unsigned char *)(hdrbuf + 16), 18); mus_bshort_to_char((unsigned char *)(hdrbuf + 20), (short)wchans); if (wchans > 0) mus_bint_to_char((unsigned char *)(hdrbuf + 22), siz / (wchans * mus_bytes_per_sample(samp_type))); mus_bshort_to_char((unsigned char *)(hdrbuf + 26), sndlib_format_to_aiff_bits(samp_type)); double_to_ieee_80((double)wsrate, (unsigned char *)(hdrbuf + 28)); if (aifc_header) { char *str; str = (char *)sndlib_format_to_aifc_name(samp_type); write_four_chars((unsigned char *)(hdrbuf + 38), (const unsigned char *)str); (*(unsigned char *)(hdrbuf + 42)) = 4; /* final pad null not accounted-for */ write_four_chars((unsigned char *)(hdrbuf + 43), (const unsigned char *)str); (*(unsigned char *)(hdrbuf + 47)) = 0; i = 48; } else i = 38; if (len != 0) { if (aifc_header) { write_four_chars((unsigned char *)(hdrbuf + 48), I_APPL); mus_bint_to_char((unsigned char *)(hdrbuf + 52), len + 4 + extra); write_four_chars((unsigned char *)(hdrbuf + 56), I_MUS_); i = 60; } else { write_four_chars((unsigned char *)(hdrbuf + 38), I_APPL); mus_bint_to_char((unsigned char *)(hdrbuf + 42), len + 4 + extra); write_four_chars((unsigned char *)(hdrbuf + 46), I_MUS_); i = 50; } for (j = 0; j < len; j++) { if (i == HDRBUFSIZ) { curend += HDRBUFSIZ; header_write(fd, hdrbuf, HDRBUFSIZ); i = 0; } hdrbuf[i] = comment[j]; i++; } if (extra != 0) { if ((i + extra) > HDRBUFSIZ) { curend += i; header_write(fd, hdrbuf, i); i = 0; } for (j = 0; j < extra; j++) { hdrbuf[i] = 0; i++; } } } curend += i; header_write(fd, hdrbuf, i); if ((loop_modes[0] == 0) && (loop_modes[1] == 0)) { write_four_chars((unsigned char *)hdrbuf, I_MARK); /* SoundHack includes a blank MARK chunk for some reason */ mus_bint_to_char((unsigned char *)(hdrbuf + 4), 2); mus_bshort_to_char((unsigned char *)(hdrbuf + 8), 0); write_four_chars((unsigned char *)(hdrbuf + 10), I_INST); mus_bint_to_char((unsigned char *)(hdrbuf + 14), 20); mus_bint_to_char((unsigned char *)(hdrbuf + 18), 0x3c00007f); /* base-note = middle C, detune = 0, lownote = 0, highnote = 0x7f */ mus_bint_to_char((unsigned char *)(hdrbuf + 22), 0x017f0000); /* lowvelocity = 1, highvelocity = 0x7f, gain = 0 */ mus_bint_to_char((unsigned char *)(hdrbuf + 26), 0); /* no loops */ mus_bint_to_char((unsigned char *)(hdrbuf + 30), 0); mus_bint_to_char((unsigned char *)(hdrbuf + 34), 0); header_write(fd, hdrbuf, 38); curend += 38; } else { write_four_chars((unsigned char *)hdrbuf, I_MARK); mus_bint_to_char((unsigned char *)(hdrbuf + 4), 8 * 4 + 2); /* 2 for mark#, then 2:id + 4:pos + 2:pstr */ /* loop_info: 0..3 are markers positions (ids 1..4) */ mus_bshort_to_char((unsigned char *)(hdrbuf + 8), 4); for (j = 0; j < 4; j++) { mus_bshort_to_char((unsigned char *)(hdrbuf + 10 + 8 * j), j + 1); switch (j) { case 0: mus_bint_to_char((unsigned char *)(hdrbuf + 10 + 8 * j + 2), loop_starts[0]); break; case 1: mus_bint_to_char((unsigned char *)(hdrbuf + 10 + 8 * j + 2), loop_ends[0]); break; case 2: mus_bint_to_char((unsigned char *)(hdrbuf + 10 + 8 * j + 2), loop_starts[1]); break; case 3: mus_bint_to_char((unsigned char *)(hdrbuf + 10 + 8 * j + 2), loop_ends[1]); break; } mus_bshort_to_char((unsigned char *)(hdrbuf + 10 + 8 * j + 6), 0); } header_write(fd, hdrbuf, 42); curend += 42; write_four_chars((unsigned char *)hdrbuf, I_INST); mus_bint_to_char((unsigned char *)(hdrbuf + 4), 20); mus_bint_to_char((unsigned char *)(hdrbuf + 8), 0x3c00007f); mus_bint_to_char((unsigned char *)(hdrbuf + 12), 0x017f0000); hdrbuf[8] = (unsigned char)(base_note); hdrbuf[9] = (unsigned char)(base_detune); mus_bshort_to_char((unsigned char *)(hdrbuf + 16), loop_modes[0]); mus_bshort_to_char((unsigned char *)(hdrbuf + 18), 1); mus_bshort_to_char((unsigned char *)(hdrbuf + 20), 2); mus_bshort_to_char((unsigned char *)(hdrbuf + 22), loop_modes[1]); mus_bshort_to_char((unsigned char *)(hdrbuf + 24), 3); mus_bshort_to_char((unsigned char *)(hdrbuf + 26), 4); header_write(fd, hdrbuf, 28); curend += 28; } write_four_chars((unsigned char *)(hdrbuf), I_SSND); mus_bint_to_char((unsigned char *)(hdrbuf + 4), siz + 8); mus_bint_to_char((unsigned char *)(hdrbuf + 8), 0); /* "offset" */ mus_bint_to_char((unsigned char *)(hdrbuf + 12), 0); /* "blocksize " */ header_write(fd, hdrbuf, 16); data_location = 16 + curend; return(MUS_NO_ERROR); } char *mus_header_aiff_aux_comment(const char *name, mus_long_t *starts, mus_long_t *ends) { /* AIFC: look for aux comments (ANNO chunks) */ char *sc = NULL; if ((starts) && (starts[0] != 0)) { mus_long_t full_len; int fd, i; fd = mus_file_open_read(name); if (fd == -1) return(NULL); full_len = 0; for (i = 0; i < AUX_COMMENTS; i++) if ((starts[i] > 0) && (starts[i] < ends[i])) full_len += (ends[i] - starts[i] + 3); if (full_len > 0) { mus_long_t sc_len; sc = (char *)calloc(full_len, sizeof(char)); sc_len = 0; for (i = 0; i < AUX_COMMENTS; i++) { mus_long_t start, end; start = starts[i]; end = ends[i]; if ((start > 0) && (start < end)) { int j; mus_long_t len; len = end - start + 1; lseek(fd, start, SEEK_SET); header_read(fd, (unsigned char *)(sc + sc_len), len); for (j = 0; j < len; j++) if (sc[j + sc_len] == 0) sc[j + sc_len] = ' '; sc_len += len; sc[sc_len++] = '\n'; } } } CLOSE(fd, name); } return(sc); } /* ------------------------------------ CAFF ------------------------------------ * * this is a new format from Apple ("Core Audio File Format") described at * http://developer.apple.com/documentation/MusicAudio/Reference/CAFSpec * * all chunks as in AIFC but size is signed 64-bit int * * 0: 'caff' * 4: 1 ("version") * 6: 0 ("flags") * 8: 'desc' (required to be in this position) * 12: sizeof apple's CAFAudioFormat struct -- (32) * 20: srate (float64) * 28: format (int32) * 32: format flags * 36: bytes per "packet" * 40: framples per packet * 44: channels per frample * 48: bits per channel * audio data is in 'data' chunk */ static int read_caff_header(int fd) { mus_long_t chunksize = 8, offset = 0; bool happy = false; int err = MUS_NO_ERROR; #define data_is_float (1L << 0) #define data_is_big_endian (1L << 1) /* misleading name -- flag is 1 if data is little endian */ sample_type = MUS_UNKNOWN_SAMPLE; srate = 0; chans = 0; data_size = 0; true_file_length = SEEK_FILE_LENGTH(fd); while (!happy) { offset += chunksize; if (offset >= true_file_length) break; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 64) <= 0) break; chunksize = mus_char_to_blong((unsigned char *)(hdrbuf + 4)); if (chunksize < 0) break; /* 'desc' is always the first chunk, but easier to handle in the loop */ if (match_four_chars((unsigned char *)hdrbuf, I_desc)) { int format_flags, channels_per_frample, bits_per_channel; srate = (int)mus_char_to_bdouble((unsigned char *)(hdrbuf + 12)); format_flags = mus_char_to_ubint((unsigned char *)(hdrbuf + 24)); /* bytes_per_packet = mus_char_to_ubint((unsigned char *)(hdrbuf + 28)); */ /* framples_per_packet = mus_char_to_ubint((unsigned char *)(hdrbuf + 32)); */ channels_per_frample = mus_char_to_ubint((unsigned char *)(hdrbuf + 36)); bits_per_channel = mus_char_to_ubint((unsigned char *)(hdrbuf + 40)); chans = channels_per_frample; /* format id can be 'lpcm' 'alaw' 'ulaw' and a bunch of others we ignore */ original_sample_type = mus_char_to_bint((unsigned char *)(hdrbuf + 20)); if (match_four_chars((unsigned char *)(hdrbuf + 20), I_lpcm)) { if (format_flags & data_is_float) { if (!(format_flags & data_is_big_endian)) { if (bits_per_channel == 32) sample_type = MUS_BFLOAT; else { if (bits_per_channel == 64) sample_type = MUS_BDOUBLE; else err = MUS_UNSUPPORTED_SAMPLE_TYPE; } } else { if (bits_per_channel == 32) sample_type = MUS_LFLOAT; else { if (bits_per_channel == 64) sample_type = MUS_LDOUBLE; else err = MUS_UNSUPPORTED_SAMPLE_TYPE; } } } else { if (!(format_flags & data_is_big_endian)) { if (bits_per_channel == 32) sample_type = MUS_BINTN; else { if (bits_per_channel == 24) sample_type = MUS_B24INT; else { if (bits_per_channel == 16) sample_type = MUS_BSHORT; else { if (bits_per_channel == 8) sample_type = MUS_BYTE; else err = MUS_UNSUPPORTED_SAMPLE_TYPE; } } } } else { if (bits_per_channel == 32) sample_type = MUS_LINTN; else { if (bits_per_channel == 24) sample_type = MUS_L24INT; else { if (bits_per_channel == 16) sample_type = MUS_LSHORT; else { if (bits_per_channel == 8) sample_type = MUS_BYTE; else err = MUS_UNSUPPORTED_SAMPLE_TYPE; } } } } } } else { if (match_four_chars((unsigned char *)(hdrbuf + 20), I_alaw)) { sample_type = MUS_ALAW; } else { if (match_four_chars((unsigned char *)(hdrbuf + 20), I_ulaw)) { sample_type = MUS_MULAW; } else err = MUS_UNSUPPORTED_SAMPLE_TYPE; } } } else { if (match_four_chars((unsigned char *)hdrbuf, I_data)) { happy = true; data_location = offset + 16; /* skip the 4 bytes for "edit count" */ update_framples_location = offset + 4; /* here chunksize can be -1! */ if (chunksize > 0) data_size = chunksize; else data_size = true_file_length - data_location; } /* else edct or something for comment? */ } chunksize += 12; } if (err == MUS_NO_ERROR) data_size = mus_bytes_to_samples(sample_type, data_size); return(err); } static int write_caff_header(int fd, int wsrate, int wchans, mus_long_t wsize, mus_sample_t samp_type) { int format_flags = 0, bytes_per_packet = 0, framples_per_packet = 1, bits_per_channel = 0; switch (samp_type) { case MUS_ALAW: bytes_per_packet = 1; bits_per_channel = 8; break; case MUS_MULAW: bytes_per_packet = 1; bits_per_channel = 8; break; default: if ((samp_type == MUS_LFLOAT) || (samp_type == MUS_LDOUBLE) || (samp_type == MUS_BFLOAT) || (samp_type == MUS_BDOUBLE)) format_flags = 1; if ((samp_type == MUS_LFLOAT) || (samp_type == MUS_LDOUBLE) || (samp_type == MUS_LINTN) || (samp_type == MUS_L24INT) || (samp_type == MUS_LSHORT)) format_flags |= 2; switch (samp_type) { case MUS_BYTE: bytes_per_packet = 1; bits_per_channel = 8; break; case MUS_LSHORT: case MUS_BSHORT: bytes_per_packet = 2; bits_per_channel = 16; break; case MUS_L24INT: case MUS_B24INT: bytes_per_packet = 3; bits_per_channel = 24; break; case MUS_LFLOAT: case MUS_BFLOAT: case MUS_BINTN: case MUS_LINTN: bytes_per_packet = 4; bits_per_channel = 32; break; case MUS_LDOUBLE: case MUS_BDOUBLE: bytes_per_packet = 8; bits_per_channel = 64; break; default: break; } break; } bytes_per_packet *= wchans; write_four_chars((unsigned char *)hdrbuf, I_caff); mus_bshort_to_char((unsigned char *)(hdrbuf + 4), 1); mus_bshort_to_char((unsigned char *)(hdrbuf + 6), 0); write_four_chars((unsigned char *)(hdrbuf + 8), I_desc); mus_blong_to_char((unsigned char *)(hdrbuf + 12), 32); mus_bdouble_to_char((unsigned char *)(hdrbuf + 20), (double)wsrate); switch (samp_type) { case MUS_ALAW: write_four_chars((unsigned char *)(hdrbuf + 28), I_alaw); break; case MUS_MULAW: write_four_chars((unsigned char *)(hdrbuf + 28), I_ulaw); break; default: write_four_chars((unsigned char *)(hdrbuf + 28), I_lpcm); break; } mus_bint_to_char((unsigned char *)(hdrbuf + 32), format_flags); mus_bint_to_char((unsigned char *)(hdrbuf + 36), bytes_per_packet); mus_bint_to_char((unsigned char *)(hdrbuf + 40), framples_per_packet); mus_bint_to_char((unsigned char *)(hdrbuf + 44), wchans); mus_bint_to_char((unsigned char *)(hdrbuf + 48), bits_per_channel); write_four_chars((unsigned char *)(hdrbuf + 52), I_data); mus_blong_to_char((unsigned char *)(hdrbuf + 56), wsize); update_framples_location = 56; mus_bint_to_char((unsigned char *)(hdrbuf + 64), 0); data_location = 68; header_write(fd, hdrbuf, 68); return(MUS_NO_ERROR); } /* ------------------------------------ RIFF (wave) ------------------------------------ * * see ftp.microsoft.com:/SoftLib/MSLFILES/MDRK.EXE (also MMSYSTEM.H and MMREG.H) * ftp://ftp.isi.edu/in-notes/rfc2361.txt * * 0: "RIFF" (little-endian) or "RIFX" (big-endian) * 4: size * 8: "WAVE" ("RMID" = midi data, others are AVI, CPPO, ACON, DLS? etc) * AVI chunk can include audio data * * rest very similar to AIFF (odd-sized chunks are padded) * * fmt 0: format code (see below) * 2: chans * 4: srate (long) * 8: average rate "for buffer estimation" * 12: alignment "block size" * 14: data size (bits per sample) (PCM only) * 16: count (bytes) of extra info in the header (i.e. trailing info added to this basic header) * 20: samples per block (short) in dvi_adpcm * * formats are: 0: unknown, 1: PCM, 2: ADPCM, 3: IEEE float, 4: VSELP, 5: IBM_CVSD, 6: alaw, 7: mulaw * 0x10: OKI_ADPCM, 0x11: DVI_ADPCM, 0x12: MediaSpace_ADPCM, * 0x13: Sierra_ADPCM, 0x14: G723_ADPCM, 0x15: DIGISTD, 0x16: DIGIFIX, 0x17: Dialogic ADPCM, * 0x18: Mediavision ADPCM, 0x19: HP cu codec, * 0x20: Yamaha_ADPCM, 0x21: SONARC, 0x22: DSPGroup_TrueSpeech * 0x23: EchoSC1, 0x24: AudioFile_AF36, 0x25: APTX, 0x26: AudioFile_AF10 * 0x27: prosody 1612, 0x28: lrc, * 0x30: Dolby_Ac2, 0x31: GSM610, 0x32: MSN audio codec, 0x33: Antext_ADPCM, 0x34: Control_res_vqlpc, * 0x35: DIGIREAL, 0x36: DIGIADPCM, 0x37: Control_res_cr10, 0x38: NMS_VBXADPCM, 0x39:Roland rdac, * 0x3a: echo sc3, 0x3b: Rockwell adpcm, 0x3c: Rockwell digitalk codec, 0x3d: Xebec, * 0x40: G721_ADPCM, 0x41: G728 CELP, 0x42: MS G723, 0x50: MPEG, * 0x52: RT24, 0x53: PAC, 0x55: Mpeg layer 3, 0x59: Lucent G723, 0x60: Cirrus, * 0x61: ESS Tech pcm, 0x62: voxware (obsolete), 0x63: canopus atrac, * 0x64: G726, 0x65: G722, 0x66: DSAT, 0x67: DSAT display, * 0x69: voxware (obsolete), 0x70: voxware ac8 (obsolete), 0x71: voxware ac10 (obsolete), * 0x72: voxware ac16 (obsolete), 0x73: voxware ac20 (obsolete), 0x74: voxware rt24, * 0x75: voxware rt29, 0x76: voxware rt29hw (obsolete), 0x77: voxware vr12 (obsolete), * 0x78: voxware vr18 (obsolete), 0x79: voxware tq40 (obsolete), * 0x80: softsound, 0x81: voxware tq60 (obsolete), 0x82: MS RT24, 0x83: G729A, * 0x84: MVI_MVI2, 0x85: DF G726, 0x86: DF GSM610, 0x88: isaudio, 0x89: onlive, * 0x91: sbc24, 0x92: dolby ac3 spdif, 0x97: zyxel adpcm, 0x98: philips lpcbb, * 0x99: packed, 0x100: rhetorex adpcm, * 0x101: Irat, 0x102: IBM_alaw?, 0x103: IBM_ADPCM?, * 0x111: vivo G723, 0x112: vivo siren, 0x123: digital g273 * 0x200: Creative_ADPCM, 0x202: Creative fastspeech 8, 0x203: Creative fastspeech 10, * 0x220: quarterdeck, 0x300: FM_TOWNS_SND, 0x400: BTV digital, 0x680: VME vmpcm, * 0x1000: OLIGSM, 0x1001: OLIADPCM, 0x1002: OLICELP, 0x1003: OLISBC, 0x1004: OLIOPR * 0x1100: LH codec, 0x1400: Norris, 0x1401: isaudio, 0x1500: Soundspace musicompression, 0x2000: DVM * (see http://www.microsoft.com/asf/resources/draft-ietf-fleischman-codec-subtree-00.txt) * and new: 0xFFFE: wave_format_extensible: bits/sample, mapping, 16 byte guid, 1st 2 bytes are code as above * * RIFF and LIST chunks have nested chunks. Registered chunk names include: * LIST with subchunks, one of which can be: * INFO itself containing: * IARL: archival location, IART: artist, ICMS: commissioned, ICMT: comment, ICOP: copyright, ICRD: creation date, * ICRP: uh...cropped, IDIM: dimensions, IDPI: dpi, IENG: engineer, IGNR: genre, IKEY: keywords, ILGT: lightness, * IMED: medium, INAM: name, IPLT: palette, IPRD: product, ISBJ: subject, ISFT: software, ISHP: sharpness, * ISRC: source, ISRF: source form, ITCH: technician, ISMP: SMPTE time code, IDIT: digitization time * * data chunk has the samples * other (currently ignored) chunks are wavl = waveform data, fact, cues of some sort, slnt = silence, * plst = playlist, adtl = associated data list, labl = cue label, note = cue comments, * ltxt = text associated with data segment (cue), file, DISP = displayable object, * JUNK = EBU placeholder -- see below, PAD = padding, etc * fact chunk generally has number of samples (used in compressed files) * bext chunk has comments -- perhaps add these to the info/list list? I need an example! -- is the chunk id "bext"? */ static mus_sample_t wave_to_sndlib_format(int osf, int bps, bool little) { switch (osf) { case 1: switch (bps) { case 8: return(MUS_UBYTE); break; case 16: if (little) return(MUS_LSHORT); else return(MUS_BSHORT); break; case 32: if (little) return(MUS_LINT); else return(MUS_BINT); break; case 24: if (little) return(MUS_L24INT); else return(MUS_B24INT); break; default: return(MUS_UBYTE); break; } break; case 3: if (little) { if (bps == 64) return(MUS_LDOUBLE); else return(MUS_LFLOAT); } else { if (bps == 64) return(MUS_BDOUBLE); else return(MUS_BFLOAT); } break; case 6: if (bps == 8) return(MUS_ALAW); break; case 7: if (bps == 8) return(MUS_MULAW); break; /* IBM mulaw follows G711 specs like other versions (this info direct from IBM) */ case 0x101: return(MUS_MULAW); break; case 0x102: return(MUS_ALAW); break; } return(MUS_UNKNOWN_SAMPLE); } static void read_riff_fmt_chunk(unsigned char *hbuf, bool little) { /* fmt chunk (also used in RF64 below) * * 8: short format code --1 = PCM for example * 10: short chans --1 * 12: long rate --48000 (0xbb80) * 16: long ave rate --65655 (0x10077) * 20: short align --2 * 22: short data size (bits) --16 * 24: bytes of extra * ... some extra data dependent on format * * R I F F # # # # W A V E f m t sp * 5249 4646 f851 0500 5741 5645 666d 7420 * e40f 0000 0100 0100 80bb 0000 0077 0100 * 0200 1000 0000 0000 0000 0000 0000 0000 * * #x000551f8 = 348664 = size in bytes - 8 * #x00000fe4 = 4068 [fmt_ chunk size?] */ original_sample_type = big_or_little_endian_short((unsigned char *)(hbuf + 8), little); chans = big_or_little_endian_short((unsigned char *)(hbuf + 10), little); srate = big_or_little_endian_int((unsigned char *)(hbuf + 12), little); block_align = big_or_little_endian_short((unsigned char *)(hbuf + 20), little); bits_per_sample = big_or_little_endian_short((unsigned char *)(hbuf + 22), little); if (original_sample_type == -2) /* 0xFFFE = "extensible" : short size=22, short bits, long chanmap, short format */ original_sample_type = big_or_little_endian_short((unsigned char *)(hbuf + 24 + 8), little); sample_type = wave_to_sndlib_format(original_sample_type, bits_per_sample, little); } static int write_riff_fmt_chunk(int fd, unsigned char *hbuf, mus_sample_t samp_type, int wsrate, int wchans) { int err = MUS_NO_ERROR; write_four_chars((unsigned char *)hbuf, I_fmt_); mus_lint_to_char((unsigned char *)(hbuf + 4), 16); switch (samp_type) { case MUS_MULAW: mus_lshort_to_char((unsigned char *)(hbuf + 8), 7); mus_lshort_to_char((unsigned char *)(hbuf + 22), 8); break; case MUS_ALAW: mus_lshort_to_char((unsigned char *)(hbuf + 8), 6); mus_lshort_to_char((unsigned char *)(hbuf + 22), 8); break; case MUS_UBYTE: mus_lshort_to_char((unsigned char *)(hbuf + 8), 1); mus_lshort_to_char((unsigned char *)(hbuf + 22), 8); break; case MUS_LSHORT: mus_lshort_to_char((unsigned char *)(hbuf + 8), 1); mus_lshort_to_char((unsigned char *)(hbuf + 22), 16); break; case MUS_L24INT: mus_lshort_to_char((unsigned char *)(hbuf + 8), 1); mus_lshort_to_char((unsigned char *)(hbuf + 22), 24); break; case MUS_LINT: mus_lshort_to_char((unsigned char *)(hbuf + 8), 1); mus_lshort_to_char((unsigned char *)(hbuf + 22), 32); break; case MUS_LFLOAT: mus_lshort_to_char((unsigned char *)(hbuf + 8), 3); mus_lshort_to_char((unsigned char *)(hbuf + 22), 32); break; case MUS_LDOUBLE: mus_lshort_to_char((unsigned char *)(hbuf + 8), 3); mus_lshort_to_char((unsigned char *)(hbuf + 22), 64); break; default: /* don't call mus_error directly -- we need to close the file first in mus_header_write */ err = MUS_UNSUPPORTED_SAMPLE_TYPE; break; } mus_lshort_to_char((unsigned char *)(hbuf + 10), (short)wchans); mus_lint_to_char((unsigned char *)(hbuf + 12), wsrate); mus_lint_to_char((unsigned char *)(hbuf + 16), wsrate * wchans * mus_bytes_per_sample(samp_type)); /* added chans 10-Mar-99 */ mus_lshort_to_char((unsigned char *)(hbuf + 20), (short)(wchans * mus_bytes_per_sample(samp_type))); /* 22 short written above = bits/sample */ header_write(fd, hbuf, 24); return(err); } static const unsigned char I_JUNK[4] = {'J','U','N','K'}; static int read_riff_header(const char *filename, int fd) { /* we know we have checked for RIFF xxxx WAVE when we arrive here */ int chunkloc = 12, i; bool little = true, got_fmt = false; mus_long_t offset = 0; if (match_four_chars((unsigned char *)hdrbuf, I_RIFX)) little = false; /* big-endian data in this case, but I've never seen one */ little_endian = little; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 8)); sample_type = MUS_UNKNOWN_SAMPLE; srate = 0; chans = 0; fact_samples = 0; bits_per_sample = 0; for (i = 0; i < AUX_COMMENTS; i++) aux_comment_start[i] = 0; true_file_length = SEEK_FILE_LENGTH(fd); update_form_size = big_or_little_endian_int((unsigned char *)(hdrbuf + 4), little); while (true) { int chunksize; offset += chunkloc; if (offset >= true_file_length) break; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 64) <= 0) break; chunksize = big_or_little_endian_int((unsigned char *)(hdrbuf + 4), little); if ((chunksize == 0) && /* can be empty data chunk */ (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) break; if (chunksize < -1) break; if (match_four_chars((unsigned char *)hdrbuf, I_fmt_)) { got_fmt = true; update_framples_location = 12 + offset; read_riff_fmt_chunk(hdrbuf, little); } else { if ((match_four_chars((unsigned char *)hdrbuf, I_data)) && (data_location == 0)) { update_ssnd_location = offset + 4; data_location = offset + 8; data_size = big_or_little_endian_uint((unsigned char *)(hdrbuf + 4), little); /* was int 27-Jul-01 */ if (chunksize == 0) break; /* see aiff comment */ } else { if (match_four_chars((unsigned char *)hdrbuf, I_fact)) { fact_samples = big_or_little_endian_int((unsigned char *)(hdrbuf + 8), little); } else { static const unsigned char I_inst[4] = {'i','n','s','t'}; /* RIFF wants lower case, just to be different */ if (match_four_chars((unsigned char *)hdrbuf, I_inst)) { base_note = hdrbuf[8]; base_detune = hdrbuf[9]; /* rest is gain low-note high-note low-velocity high-velocity */ } else { if (match_four_chars((unsigned char *)hdrbuf, I_clm_)) { comment_start = offset + 8; comment_end = comment_start + chunksize - 1; /* end of comment not start of next chunk */ } else { if ((match_four_chars((unsigned char *)hdrbuf, I_LIST)) && (match_four_chars((unsigned char *)(hdrbuf + 8), I_INFO))) { aux_comment_start[0] = offset + 8; aux_comment_end[0] = offset + 8 + chunksize - 1; } else { if (match_four_chars((unsigned char *)hdrbuf, I_JUNK)) update_rf64_location = offset; } } } } } } chunkloc = (8 + chunksize); if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ } if (!got_fmt) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no fmt chunk?", filename)); if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no data chunk?", filename)); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } static void write_riff_clm_comment(int fd, const char *comment, int len, int extra) { int i = 0, j; write_four_chars((unsigned char *)hdrbuf, I_clm_); mus_lint_to_char((unsigned char *)(hdrbuf + 4), len + extra); i = 8; for (j = 0; j < len; j++) { if (i == HDRBUFSIZ) { header_write(fd, hdrbuf, HDRBUFSIZ); i = 0; } hdrbuf[i++] = comment[j]; } if (extra != 0) { if ((i + extra) > HDRBUFSIZ) { header_write(fd, hdrbuf, i); i = 0; } for (j = 0; j < extra; j++) hdrbuf[i++] = 0; } if (i > 0) { header_write(fd, hdrbuf, i); } } static int write_riff_header(int fd, int wsrate, int wchans, int siz, mus_sample_t samp_type, const char *comment, int len) { int j, extra = 0, err = MUS_NO_ERROR; data_location = 36 + 36 + 8; if (len != 0) { if ((len % 4) != 0) extra = (4 - (len % 4)); data_location += (8 + len + extra); } /* 36 = "RIFF" + size(4) + "WAVE" + "fmt " + size(4) + 16 for data */ /* second 36 is for "JUNK" chunk, 8 is data chunk header */ write_four_chars((unsigned char *)hdrbuf, I_RIFF); mus_lint_to_char((unsigned char *)(hdrbuf + 4), data_location + siz - 8); /* added -8 25-June-07 */ write_four_chars((unsigned char *)(hdrbuf + 8), I_WAVE); header_write(fd, hdrbuf, 12); /* add JUNK chunk for possible change to RF64 during write */ write_four_chars((unsigned char *)hdrbuf, I_JUNK); mus_lint_to_char((unsigned char *)(hdrbuf + 4), 28); for (j = 8; j < 36; j++) hdrbuf[j] = 0; header_write(fd, hdrbuf, 36); /* fmt chunk */ err = write_riff_fmt_chunk(fd, hdrbuf, samp_type, wsrate, wchans); /* include possible clm (comment) chunk */ if (len > 0) write_riff_clm_comment(fd, comment, len, extra); /* start the data chunk */ write_four_chars((unsigned char *)hdrbuf, I_data); mus_lint_to_char((unsigned char *)(hdrbuf + 4), siz); header_write(fd, hdrbuf, 8); return(err); } char *mus_header_riff_aux_comment(const char *name, mus_long_t *starts, mus_long_t *ends) { char *sc = NULL, *auxcom; if ((starts) && (starts[0] != 0)) { int j, fd, k, m; mus_long_t i, end; /* found a LIST+INFO chunk (and no other comment) */ fd = mus_file_open_read(name); if (fd == -1) return(NULL); i = starts[0]; end = ends[0]; sc = (char *)calloc(end - i + 2, sizeof(char)); j = 0; k = 4; lseek(fd, i, SEEK_SET); auxcom = (char *)calloc(end - i + 2, sizeof(char)); header_read(fd, (unsigned char *)auxcom, end - i + 1); CLOSE(fd, name); i += 4; while (i < end) { int len; for (m = 0; m < 4; m++) sc[j++] = auxcom[k++]; len = mus_char_to_lint((unsigned char *)(auxcom + k)); if ((len <= 0) || (len > end)) break; sc[j++] = ':'; sc[j++] = ' '; k += 4; for (m = 0; m < len; m++) if (auxcom[k] != 0) sc[j++] = auxcom[k++]; else k++; sc[j++] ='\n'; if (len & 1) { len++; k++; } i += (len + 8); } free(auxcom); } return(sc); } /* ------------------------------------ W64 ------------------------------------ * * soundforge -- just a quick hack until I get better documentation */ static int read_soundforge_header(const char *filename, int fd) { /* like RIFF but lowercase and 64-bit vals */ int i, off; mus_long_t offset, chunkloc; chunkloc = 12 * 2 + 16; offset = 0; sample_type = MUS_UNKNOWN_SAMPLE; srate = 0; chans = 0; fact_samples = 0; bits_per_sample = 0; for (i = 0; i < AUX_COMMENTS; i++) aux_comment_start[i] = 0; true_file_length = SEEK_FILE_LENGTH(fd); update_form_size = mus_char_to_llong((unsigned char *)(hdrbuf + 4 * 2)); while (true) { int chunksize; offset += chunkloc; if (offset >= true_file_length) break; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 64) <= 0) break; chunksize = mus_char_to_llong((unsigned char *)(hdrbuf + 16)); if ((chunksize == 0) && /* can be empty data chunk? */ (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) break; if (chunksize < 0) break; if (match_four_chars((unsigned char *)hdrbuf, I_fmt_)) { off = 16; original_sample_type = mus_char_to_lshort((unsigned char *)(hdrbuf + 8 + off)); chans = mus_char_to_lshort((unsigned char *)(hdrbuf + 10 + off)); srate = mus_char_to_lint((unsigned char *)(hdrbuf + 12 + off)); block_align = mus_char_to_lshort((unsigned char *)(hdrbuf + 20 + off)); bits_per_sample = mus_char_to_lshort((unsigned char *)(hdrbuf + 22 + off)); sample_type = wave_to_sndlib_format(original_sample_type, bits_per_sample, true); } else { if ((match_four_chars((unsigned char *)hdrbuf, I_data)) && (data_location == 0)) { data_location = offset + 16 + 8; data_size = mus_char_to_llong((unsigned char *)(hdrbuf + 16)); if (chunksize == 0) break; /* see aiff comment */ } else { if (match_four_chars((unsigned char *)hdrbuf, I_fact)) { fact_samples = mus_char_to_llong((unsigned char *)(hdrbuf + 8)); } } } chunkloc = chunksize % 8; if (chunkloc == 0) chunkloc = chunksize; else chunkloc = chunksize + 8 - chunkloc; /* I think they are rounding up to a multiple of 8 here (sigh) */ } if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no data chunk?", filename)); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ RF64 ------------------------------------ * * see http://www.ebu.ch/CMSimages/en/tec_doc_t3306_tcm6-42570.pdf. * * RF64 0xFFFFFFFF WAVE * ds64 size(32) RIFF-size(64) data-size(64) fact-samples(64) table-len table * fmt_ size format-data * data 0xFFFFFFFF data... * * if RIFF WAVE is being written with possibility of overflow size, use * RIFF size WAVE JUNK then the ds64 chunk as above * if size overflows, reset RIFF->RF64, JUNK->ds64, size->-1 twice etc * * JUNK size = 28 * all ints are little endian * */ static int read_rf64_header(const char *filename, int fd) { /* we've checked RF64 xxxx WAVE before getting here */ /* this is very similar (identical) to RIFF for the most part, but I decided it was cleanest to copy the code */ mus_long_t chunkloc; bool got_fmt = false, got_ds64 = false; mus_long_t offset; little_endian = true; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 8)); chunkloc = 12; offset = 0; sample_type = MUS_UNKNOWN_SAMPLE; srate = 0; chans = 0; fact_samples = 0; bits_per_sample = 0; { int i; for (i = 0; i < AUX_COMMENTS; i++) aux_comment_start[i] = 0; } true_file_length = SEEK_FILE_LENGTH(fd); update_form_size = -1; /* at hdrbuf+4 -> 0xFFFFFFFF */ while (true) { mus_long_t chunksize; offset += chunkloc; if (offset >= true_file_length) break; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 64) <= 0) break; chunksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); if ((chunksize == 0) && /* can be empty data chunk */ (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) break; if (chunksize < -1) break; if (match_four_chars((unsigned char *)hdrbuf, I_ds64)) { /* RIFF form size | data size | fact samples */ update_form_size = mus_char_to_llong((unsigned char *)(hdrbuf + 8)); data_size = mus_char_to_llong((unsigned char *)(hdrbuf + 16)); fact_samples = (int)mus_char_to_llong((unsigned char *)(hdrbuf + 24)); update_rf64_location = offset + 8; got_ds64 = true; /* ignore "table" for now */ } else { if (match_four_chars((unsigned char *)hdrbuf, I_fmt_)) { got_fmt = true; update_framples_location = 12 + offset; read_riff_fmt_chunk(hdrbuf, true); } else { if ((match_four_chars((unsigned char *)hdrbuf, I_data)) && (data_location == 0)) { update_ssnd_location = offset + 4; data_location = offset + 8; /* chunksize (at hdrbuf + 4) here is -1 */ chunksize = data_size; if (chunksize <= 0) break; /* argh -- we need the ds64 chunk before this chunk */ } else { /* ignore possible fact, inst chunks */ if (match_four_chars((unsigned char *)hdrbuf, I_clm_)) { comment_start = offset + 8; comment_end = comment_start + chunksize - 1; /* end of comment not start of next chunk */ } else { if ((match_four_chars((unsigned char *)hdrbuf, I_LIST)) && (match_four_chars((unsigned char *)(hdrbuf + 8), I_INFO))) { aux_comment_start[0] = offset + 8; aux_comment_end[0] = offset + 8 + chunksize - 1; } } } } } chunkloc = (8 + chunksize); if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ } if (!got_fmt) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no fmt chunk?", filename)); if (!got_ds64) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no ds64 chunk?", filename)); if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no data chunk?", filename)); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } static int write_rf64_header(int fd, int wsrate, int wchans, mus_long_t size, mus_sample_t samp_type, const char *comment, int len) { int extra = 0, err = MUS_NO_ERROR; data_location = 36 + 36 + 8; if (len != 0) { if ((len % 4) != 0) extra = (4 - (len % 4)); data_location += (8 + len + extra); } write_four_chars((unsigned char *)hdrbuf, I_RF64); mus_lint_to_char((unsigned char *)(hdrbuf + 4), -1); write_four_chars((unsigned char *)(hdrbuf + 8), I_WAVE); header_write(fd, hdrbuf, 12); /* ds64 chunk */ write_four_chars((unsigned char *)hdrbuf, I_ds64); mus_lint_to_char((unsigned char *)(hdrbuf + 4), 28); mus_llong_to_char((unsigned char *)(hdrbuf + 8), data_location + size - 8); /* -8 added 25-June-07 */ mus_llong_to_char((unsigned char *)(hdrbuf + 16), size); mus_llong_to_char((unsigned char *)(hdrbuf + 24), size); mus_lint_to_char((unsigned char *)(hdrbuf + 32), 0); /* "table size" */ header_write(fd, hdrbuf, 36); err = write_riff_fmt_chunk(fd, hdrbuf, samp_type, wsrate, wchans); if (len > 0) write_riff_clm_comment(fd, comment, len, extra); write_four_chars((unsigned char *)hdrbuf, I_data); mus_lint_to_char((unsigned char *)(hdrbuf + 4), -1); header_write(fd, hdrbuf, 8); return(err); } static int mus_header_convert_riff_to_rf64(const char *filename, mus_long_t size) { int err, fd; update_rf64_location = -1; update_ssnd_location = 0; /* mus_header_change_type copies the entire file, which is probably a bad idea in this case */ err = mus_header_read(filename); if (err != MUS_NO_ERROR) return(err); if ((update_ssnd_location == 0) || (update_rf64_location <= 0)) /* "JUNK" chunk has to be there already for this to work */ return(MUS_CANT_CONVERT); fd = mus_file_reopen_write(filename); if (fd == -1) return(false); /* change overall type to rf64 and set size to RIFF -1 */ write_four_chars((unsigned char *)hdrbuf, I_RF64); mus_lint_to_char((unsigned char *)(hdrbuf + 4), -1); header_write(fd, hdrbuf, 8); /* set data chunk's size to -1 */ lseek(fd, update_ssnd_location, SEEK_SET); mus_lint_to_char((unsigned char *)(hdrbuf + 4), -1); header_write(fd, hdrbuf, 4); /* convert the "JUNK" chunk to be a "ds64" chunk */ lseek(fd, update_rf64_location, SEEK_SET); write_four_chars((unsigned char *)hdrbuf, I_ds64); mus_lint_to_char((unsigned char *)(hdrbuf + 4), 28); mus_llong_to_char((unsigned char *)(hdrbuf + 8), data_location + size - 8); mus_llong_to_char((unsigned char *)(hdrbuf + 16), size); mus_llong_to_char((unsigned char *)(hdrbuf + 24), size); header_write(fd, hdrbuf, 36); CLOSE(fd, filename); return(true); } /* ------------------------------------ AVI ------------------------------------ * actually a video format, but it sometimes contains embedded 'wave' data * * RIFF xxx AVI * * LIST xxxx hdr1 LIST strl(?) strh | strf | strn etc * strf is the WAVE header starting with the sound format * LIST xxxx movi ##db|##wb -- wb subblocks have the audio data (these need to be collected as a single stream) * there are many complications that we make no effort to handle here * * described in http://www.rahul.net/jfm/avi.html */ static int read_avi_header(const char *filename, int fd) { static const unsigned char I_strf[4] = {'s','t','r','f'}; static const unsigned char I_movi[4] = {'m','o','v','i'}; /* we know we have checked for RIFF xxxx AVI when we arrive here */ int chunkloc, cksize, bits; bool happy = true; mus_long_t ckoff, cktotal, offset; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 8)); chunkloc = 12; offset = 0; sample_type = MUS_UNKNOWN_SAMPLE; srate = 0; chans = 1; true_file_length = SEEK_FILE_LENGTH(fd); while (happy) { int chunksize; offset += chunkloc; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 32) <= 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s avi header: chunks confused at %lld", filename, offset)); chunksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); if ((chunksize == 0) && /* can be empty data chunk? */ (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) break; if (chunksize < 0) break; if (match_four_chars((unsigned char *)hdrbuf, I_LIST)) { ckoff = offset + 12; cktotal = 12; if (match_four_chars((unsigned char *)(hdrbuf + 8), I_movi)) { while (cktotal < chunksize) { lseek(fd, ckoff, SEEK_SET); header_read(fd, hdrbuf, 8); cksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); if ((hdrbuf[2] == 'w') && (hdrbuf[3] == 'b')) { data_location = ckoff; if (srate != 0) happy = false; break; } ckoff += (8 + cksize); cktotal += (8 + cksize); } } else { while (cktotal < chunksize) { lseek(fd, ckoff, SEEK_SET); header_read(fd, hdrbuf, 8); cksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); ckoff += (8 + cksize); cktotal += (8 + cksize); if (match_four_chars((unsigned char *)hdrbuf, I_LIST)) { mus_long_t ckoffr, cktotalr, rdsize; ckoffr = ckoff + 12; cktotalr = 12; while (cktotalr < cksize) { mus_long_t cksizer; lseek(fd, ckoffr, SEEK_SET); header_read(fd, hdrbuf, 8); cksizer = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); ckoffr += (8 + cksizer); cktotalr += (8 + cksizer); if (match_four_chars((unsigned char *)hdrbuf, I_strf)) { if (cksizer < HDRBUFSIZ) rdsize = cksizer; else rdsize = HDRBUFSIZ; header_read(fd, hdrbuf, rdsize); original_sample_type = mus_char_to_lshort((unsigned char *)hdrbuf); chans = mus_char_to_lshort((unsigned char *)(hdrbuf + 2)); srate = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); /* block_align = mus_char_to_lshort((unsigned char *)(hdrbuf + 12)); */ bits = mus_char_to_lshort((unsigned char *)(hdrbuf + 14)); /* only 16 bit linear little endian for now */ if ((bits == 16) && (original_sample_type == 1)) sample_type = MUS_LSHORT; if (data_location != 0) happy = false; break; } } } } } } chunkloc = (8 + chunksize); if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ } if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no movi chunk?", filename)); if (data_location > true_file_length) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); data_size = mus_bytes_to_samples(sample_type, true_file_length - data_location); return(MUS_NO_ERROR); } /* ------------------------------------ SoundFont 2.0 ------------------------------------ * * Emu's SoundFont(tm) format uses RIFF -- at ftp.creaf.com:/pub/emu/sf2_00a.ps) * * RIFF xxxx sfbk followed by * LIST xxxx INFO chunk (nothing of interest -- icmt subchunk might have comments) * LIST xxxx sdta chunk = data * smpl chunk (16 bit linear little-endian) * LIST xxxx pdta list chunk * shdr subchunk has srate at 40 (int), samples at 28 * * http://smurf.sourceforge.net/sfont_intro.php * http://www.hammersound.net/ */ static int soundfont_entries = 0; static int *soundfont_starts = NULL, *soundfont_ends = NULL, *soundfont_loop_starts = NULL, *soundfont_loop_ends = NULL; static int soundfont_size = 0; static char **soundfont_names = NULL; static void soundfont_entry(const char *name, int start, int end, int loop_start, int loop_end) { if (soundfont_entries == soundfont_size) { int i; if (soundfont_size == 0) { soundfont_size = 8; soundfont_starts = (int *)calloc(soundfont_size, sizeof(int)); soundfont_ends = (int *)calloc(soundfont_size, sizeof(int)); soundfont_loop_starts = (int *)calloc(soundfont_size, sizeof(int)); soundfont_loop_ends = (int *)calloc(soundfont_size, sizeof(int)); soundfont_names = (char **)calloc(soundfont_size, sizeof(char *)); } else { if (soundfont_size < 123123123) soundfont_size += 8; /* believe it or not, without the 123123123 shuffle, gcc complains at mus_header_read_1 [line 5519!] * that we are making a naughty assumption about overflows. */ soundfont_starts = (int *)realloc(soundfont_starts, soundfont_size * sizeof(int)); soundfont_ends = (int *)realloc(soundfont_ends, soundfont_size * sizeof(int)); soundfont_loop_starts = (int *)realloc(soundfont_loop_starts, soundfont_size * sizeof(int)); soundfont_loop_ends = (int *)realloc(soundfont_loop_ends, soundfont_size * sizeof(int)); soundfont_names = (char **)realloc(soundfont_names, soundfont_size * sizeof(char *)); } for (i = soundfont_entries; i < soundfont_size; i++) soundfont_names[i] = NULL; } if (soundfont_names[soundfont_entries] == NULL) soundfont_names[soundfont_entries] = (char *)calloc(20, sizeof(char)); strcpy(soundfont_names[soundfont_entries], name); soundfont_starts[soundfont_entries] = start; soundfont_ends[soundfont_entries] = end; soundfont_loop_starts[soundfont_entries] = loop_start; soundfont_loop_ends[soundfont_entries] = loop_end; soundfont_entries++; } int mus_header_sf2_entries(void) {return(soundfont_entries);} char *mus_header_sf2_name(int n) {return(soundfont_names[n]);} int mus_header_sf2_start(int n) {return(soundfont_starts[n]);} int mus_header_sf2_end(int n) {return(soundfont_ends[n]);} int mus_header_sf2_loop_start(int n) {return(soundfont_loop_starts[n]);} int mus_header_sf2_loop_end(int n) {return(soundfont_loop_ends[n]);} static int read_soundfont_header(const char *filename, int fd) { static const unsigned char I_sdta[4] = {'s','d','t','a'}; static const unsigned char I_shdr[4] = {'s','h','d','r'}; static const unsigned char I_pdta[4] = {'p','d','t','a'}; /* we know we have checked for RIFF xxxx sfbk when we arrive here */ int chunkloc, type, cksize, i, this_end, last_end; mus_long_t ckoff, offset; bool happy = true; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 8)); chunkloc = 12; offset = 0; soundfont_entries = 0; sample_type = MUS_LSHORT; srate = 0; chans = 1; last_end = 0; true_file_length = SEEK_FILE_LENGTH(fd); while (happy) { int chunksize; offset += chunkloc; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 32) <= 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s soundfont header: chunks confused at %lld", filename, offset)); chunksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); if ((chunksize == 0) && /* can be empty data chunk? */ (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) break; if (chunksize < 0) break; if (match_four_chars((unsigned char *)hdrbuf, I_LIST)) { /* everything is squirreled away in LIST chunks in this format */ if (match_four_chars((unsigned char *)(hdrbuf + 8), I_pdta)) { /* go searching for I_shdr -- headers this complicated should be illegal. */ ckoff = offset + 12; lseek(fd, ckoff, SEEK_SET); while (srate == 0) { long long int bytes; bytes = (long long int)read(fd, hdrbuf, 8); if (bytes == 0) { happy = false; break; } i = 0; cksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); ckoff += (8 + cksize); /* here we need to jump over subchunks! -- 4-Aug-97 */ if (match_four_chars((unsigned char *)hdrbuf, I_shdr)) { /* each sound: * 0: name * 20: start (in samples from start of bank) * 24: end * 28: loop start (also relative to start of bank) * 32: loop end * 36: sample rate * 40: pitch (60 = middle C) * 41: detune (cents) * 42: link (to other channel if any?) * 44: type (1 = mono, 2 = mono right, 4 = mono left, others (0x8000) apparently for ROM presets?) */ while (i < cksize) { header_read(fd, hdrbuf, 46); i += 46; type = mus_char_to_lshort((unsigned char *)(hdrbuf + 44)); if ((type == 1) && (mus_char_to_lint((unsigned char *)(hdrbuf + 24)) > 0)) { if (srate == 0) srate = mus_char_to_lint((unsigned char *)(hdrbuf + 36)); soundfont_entry((char *)(hdrbuf), mus_char_to_lint((unsigned char *)(hdrbuf + 20)), this_end = mus_char_to_lint((unsigned char *)(hdrbuf + 24)), mus_char_to_lint((unsigned char *)(hdrbuf + 28)), mus_char_to_lint((unsigned char *)(hdrbuf + 32))); if (this_end > last_end) last_end = this_end; } } happy = (data_location == 0); } else { if (ckoff >= offset + 8 + chunksize) break; lseek(fd, ckoff, SEEK_SET); } } } else { if (match_four_chars((unsigned char *)(hdrbuf + 8), I_sdta)) { /* assume smpl follows + subchunk size */ /* Convert 1.4 appears to create a separate smpl chunk */ data_location = offset + 20; /* LIST xxxx sdta smpl xxxx ... */ happy = (srate == 0); } } } chunkloc = (8 + chunksize); if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ } if (srate == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: srate == 0", filename)); if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no sdta chunk?", filename)); if (last_end > 0) data_size = last_end; /* samples already */ else data_size = (true_file_length - data_location) / 2; return(MUS_NO_ERROR); } /* ------------------------------------ NIST ------------------------------------ * * code available in ogitools-v1.0.tar.gz at svr-ftp.eng.cam.ac.uk:comp.speech/sources * * 0: "NIST_1A" * 8: data_location as ASCII representation of integer (apparently always " 1024") * 16: start of complicated header -- see below for details * * The most recent version of the SPHERE package is available * via anonymous ftp from jaguar.ncsl.nist.gov [129.6.48.157] in the pub directory * in compressed tar form as "sphere-v.tar.Z" (where "v" is the version * code 2.6a last I looked). shortpack is also at this site. * * here's an example: * * NIST_1A * 1024 * database_id -s5 TIMIT * database_version -s3 1.0 * utterance_id -s8 aks0_sa1 * channel_count -i 1 * sample_count -i 63488 * sample_rate -i 16000 * sample_min -i -6967 * sample_max -i 7710 * sample_n_bytes -i 2 * sample_byte_format -s2 01 * sample_sig_bits -i 16 * end_head * * the sample_byte_format can be "10"=big-endian or "01"=little-endian, or "shortpack-v0"=compressed via shortpack * other formats are wavpack and shorten. * * another field is 'sample_coding' which can be pcm (i.e. linear), 'pcm, embedded-shorten-v1.09', mu-law, alaw, ulaw, pculaw etc -- * so unpredictable as to be totally useless. This means we sometimes try to decode shorten-encoded files because * we ignore this field. And worse, there's a 'channels_interleaved' field that (apparently) can be false. Tough. */ #define MAX_FIELD_LENGTH 80 static int decode_nist_value(char *str, int base, int end) { /* can be -i -r or -snnn where nnn = ascii rep of integer = len of string (!) */ /* we'll deal only with integer fields (and well-behaved string fields) */ int i, j; char value[MAX_FIELD_LENGTH]; memset((void *)value, 0, MAX_FIELD_LENGTH); i = base; while ((i < end) && (i < MAX_FIELD_LENGTH) && (str[i] != '-')) i++; /* look for -i or whatever */ while ((i < end) && (i < MAX_FIELD_LENGTH) && (str[i] != ' ')) i++; /* look for space after it */ i++; if (i >= MAX_FIELD_LENGTH) return(0); for (j = 0; i < end; j++, i++) value[j] = str[i]; value[j] = 0; if (value[0] =='s') return(MUS_NIST_SHORTPACK); sscanf(value, "%12d", &i); /* what is the correct way to use mus_long_ts here for the sample count? */ return(i); } static int read_nist_header(const char *filename, int fd) { char str[MAX_FIELD_LENGTH], name[MAX_FIELD_LENGTH]; bool happy = true; mus_long_t curbase; int k, hend, j, n, nm, samples, bytes, byte_format, idata_location = 0; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); /* the actual id is "NIST_1A" */ memset((void *)str, 0, MAX_FIELD_LENGTH); memset((void *)name, 0, MAX_FIELD_LENGTH); for (k = 8; k < 16; k++) str[k - 8] = hdrbuf[k]; sscanf(str, "%12d", &idata_location); /* always "1024" */ if (idata_location != 1024) return(mus_error(MUS_HEADER_READ_FAILED, "%s NIST data location: %d?", filename, idata_location)); data_location = 1024; n = 16; hend = INITIAL_READ_SIZE; k = 0; curbase = 0; samples = 0; bytes = 0; srate = 0; chans = 0; comment_start = 16; comment_end = 16; byte_format = 10; for (j = 0; j < MAX_FIELD_LENGTH; j++) str[j] =' '; while (happy) { /* much as in xIFF files, march through the file looking for the data we're after */ /* in this case we munch a character at a time... */ str[k] = hdrbuf[n]; if ((((str[k] == '\0') || (str[k] == '\n')) || ((curbase + n + 1) >= data_location)) || (k == 79)) { /* got a complete record (assuming no embedded newlines, of course) */ /* now look for a record we care about and decode it */ nm = 0; while ((nm < MAX_FIELD_LENGTH) && (str[nm] != ' ') && (str[nm] != '\0') && (str[nm] != '\n')) { name[nm] = str[nm]; nm++; } if (nm >= MAX_FIELD_LENGTH) { header_type = MUS_RAW; sample_type = MUS_UNKNOWN_SAMPLE; return(mus_error(MUS_UNSUPPORTED_HEADER_TYPE, "%s nist header: unreadable field (length = %d)?", filename, nm)); } name[nm] = 0; if (strcmp(name, "sample_rate") == 0) srate = decode_nist_value(str, nm, k); else if (strcmp(name, "channel_count") == 0) chans = decode_nist_value(str, nm, k); else if (strcmp(name, "end_head") == 0) {happy = false; comment_end = curbase + n - 9;} else if (strcmp(name, "sample_count") == 0) samples = decode_nist_value(str, nm, k); else if ((bytes == 0) && (strcmp(name, "sample_n_bytes") == 0)) bytes = decode_nist_value(str, nm, k); else if ((bytes == 0) && (strcmp(name, "sample_sig_bits") == 0)) {bytes = decode_nist_value(str, nm, k); bytes = (bytes >> 3);} else if (strcmp(name, "sample_byte_format") == 0) byte_format = decode_nist_value(str, nm, k); for (j = 0; j <= k; j++) str[j] =' '; k = 0; if ((curbase + n + 1) > 1024) happy = false; } else k++; n++; if (n >= hend) { long long int read_bytes; curbase += hend; n = 0; read_bytes = (long long int)read(fd, hdrbuf, HDRBUFSIZ); if (read_bytes < HDRBUFSIZ) return(mus_error(MUS_HEADER_READ_FAILED, "%s NIST header truncated?", filename)); hend = HDRBUFSIZ; } } data_size = samples * bytes; if (byte_format == MUS_NIST_SHORTPACK) { sample_type = MUS_UNKNOWN_SAMPLE; original_sample_type = MUS_NIST_SHORTPACK; } else { switch (bytes) { case 1: sample_type = MUS_MULAW; break; case 2: if (byte_format == 10) sample_type = MUS_BSHORT; else sample_type = MUS_LSHORT; break; case 3: if (byte_format == 10) sample_type = MUS_B24INT; else sample_type = MUS_L24INT; break; case 4: if (byte_format == 10) sample_type = MUS_BINT; else sample_type = MUS_LINT; break; default: sample_type = MUS_BYTE; break; } } true_file_length = SEEK_FILE_LENGTH(fd); if ((data_size > true_file_length) && (original_sample_type != MUS_NIST_SHORTPACK)) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } static int write_nist_header(int fd, int wsrate, int wchans, mus_long_t size, mus_sample_t samp_type) { char *header; int datum; datum = mus_bytes_per_sample(samp_type); header = (char *)calloc(1024, sizeof(char)); snprintf(header, 1024, "NIST_1A\n 1024\nchannel_count -i %d\nsample_rate -i %d\nsample_n_bytes -i %d\nsample_byte_format -s2 %s\nsample_sig_bits -i %d\nsample_count -i %lld\nend_head\n", wchans, wsrate, datum, ((samp_type == MUS_BSHORT) || (samp_type == MUS_B24INT) || (samp_type == MUS_BINT)) ? "10" : "01", datum * 8, size / datum); header_write(fd, (unsigned char *)header, 1024); data_location = 1024; free(header); return(MUS_NO_ERROR); } /* ------------------------------------ BICSF ------------------------------------ * (actually, this is EBICSF and the old BICSF is called IRCAM below) * * 0-28: NeXT-compatible header, read by read_next_header above. * 28: bicsf magic number (107364 or trouble) * 32: srate as a 32-bit float * 36: chans * 40: sample type indicator (2 = 16-bit linear, 4 = 32-bit float) * 44: begin chunks, if any * * followed by AIFF-style chunked header info with chunks like: * * COMM size comment * MAXA size {max amps (up to 4)} (frample offsets) time-tag unix msec counter * CUE, PRNT, ENV etc * * except in Paul Lansky's "hybrid" headers, according to MixViews. */ static int read_bicsf_header(const char *filename, int fd) { int chunksize, chunkname, offset, chunkloc; bool happy = true; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 28)); header_type = MUS_BICSF; data_location = 1024; if (data_size == 0) data_size = (true_file_length - data_location); lseek(fd, 40, SEEK_SET); header_read(fd, hdrbuf, HDRBUFSIZ); original_sample_type = mus_char_to_bint((unsigned char *)hdrbuf); switch (original_sample_type) { case 2: sample_type = MUS_BSHORT; break; case 4: sample_type = MUS_BFLOAT; break; case 8: sample_type = MUS_BDOUBLE; break; default: break; } /* now check for a COMM chunk, setting the comment pointers */ chunkloc = 4; /* next header + magic number, srate, chans, packing, then chunks, I think */ offset = 40; while (happy) { if (((offset + chunkloc) >= data_location) || ((offset + chunkloc) < 40)) happy = false; else { offset += chunkloc; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 32) <= 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s bicsf header: chunks confused at %d", filename, offset)); chunkname = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); chunksize = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); if (chunksize < 0) break; if (match_four_chars((unsigned char *)hdrbuf, I_COMM)) { comment_start = 8 + offset; comment_end = comment_start + chunksize -1; happy = false; } else { if ((chunkname == 0) || (chunksize <= 0)) happy = false; } chunkloc = (8 + chunksize); } } return(MUS_NO_ERROR); /* from here we fall back into read_next_header */ } /* ------------------------------------ IRCAM ------------------------------------ * old-style BICSF -- added write option for Sun port 12-Dec-94 * * 0: 0x1a364 or variations thereof -- byte order gives big/little_endian decision, * ^ digit gives machine info, according to AFsp sources -- see IRCAM ints above * 4: srate as a 32-bit float * 8: chans * 12: sample type indicator (2 = 16-bit linear, 4 = 32-bit float) * according to new Sox (version 11), these packing modes are now bytes/sample in low short, code in high * so 1 = char, 0x10001 = alaw, 0x20001 = mulaw, 2 = short, 3 = 24bit?, 0x40004 = long, 4 = float (AFsp sez 4 can also be double) * 16: comment start -- how to tell if it's a real comment? * apparently these are separated as short code, short blocksize, then data * codes: 0 = end, 1 = maxamp, 2 = comment, 3 = pvdata, 4 = audioencode and codemax?? * 1024: data start * * apparently the byte order depends on the machine. * and yet... convert 1.4 makes a .sf file with little endian header, the VAX id, and big endian data? * Csound also uses the VAX magic number with little-endian unscaled floats! Argh. * even worse, Paul Lansky plops some version of this at the end of a NeXT header! Complete chaos... */ static int read_ircam_header(const char *filename, int fd) { short bloc; int offset; bool little, happy = true; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); if ((mus_char_to_lint((unsigned char *)hdrbuf) == I_IRCAM_VAX) || (mus_char_to_lint((unsigned char *)hdrbuf) == I_IRCAM_MIPS)) little = true; else little = false; little_endian = little; data_location = 1024; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - 1024); original_sample_type = big_or_little_endian_int((unsigned char *)(hdrbuf + 12), little); sample_type = MUS_UNKNOWN_SAMPLE; if (original_sample_type == 2) { if (little) sample_type = MUS_LSHORT; else sample_type = MUS_BSHORT; } else if (original_sample_type == 4) { if (little) { if (mus_char_to_lint((unsigned char *)hdrbuf) == I_IRCAM_VAX) sample_type = MUS_LFLOAT_UNSCALED; /* Csound and MixViews */ else sample_type = MUS_LFLOAT; } else sample_type = MUS_BFLOAT; } else if (original_sample_type == 0x40004) { if (little) sample_type = MUS_LINT; else sample_type = MUS_BINT; } else if (original_sample_type == 0x10001) sample_type = MUS_ALAW; else if (original_sample_type == 0x20001) sample_type = MUS_MULAW; else if (original_sample_type == 1) sample_type = MUS_BYTE; else if (original_sample_type == 3) { if (little) sample_type = MUS_L24INT; else sample_type = MUS_B24INT; } else if (original_sample_type == 8) { if (little) sample_type = MUS_LDOUBLE; else sample_type = MUS_BDOUBLE; } srate = (int)big_or_little_endian_float((unsigned char *)(hdrbuf + 4), little); chans = big_or_little_endian_int((unsigned char *)(hdrbuf + 8), little); bloc = 16; offset = 0; while (happy) { short bcode, bsize; offset += bloc; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 32) <= 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s ircam header: chunks confused at %d", filename, offset)); bcode = big_or_little_endian_short((unsigned char *)hdrbuf, little); bsize = big_or_little_endian_short((unsigned char *)(hdrbuf + 2), little); if (bcode == 2) { happy = false; comment_start = 4 + offset; comment_end = comment_start + bsize - 1; /* was -5? */ } bloc = bsize; if ((bsize <= 0) || (bcode <= 0) || ((offset + bloc) > 1023)) happy = false; } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } static int sndlib_format_to_ircam(mus_sample_t samp_type) { switch (samp_type) { case MUS_MULAW: return(0x20001); break; case MUS_ALAW: return(0x10001); break; case MUS_BSHORT: return(2); break; case MUS_BINT: return(0x40004); break; case MUS_BFLOAT: return(4); break; default: return(mus_error(MUS_UNSUPPORTED_SAMPLE_TYPE, "IRCAM header unsupported sample type: %d (%s)", samp_type, any_sample_type_name(samp_type))); break; } } static void write_ircam_comment(int fd, const char *comment, int len) { if (len > 0) { mus_bshort_to_char((unsigned char *)hdrbuf, 2); mus_bshort_to_char((unsigned char *)(hdrbuf + 2), (short)len); header_write(fd, hdrbuf, 4); header_write(fd, (unsigned char *)comment, len); } else { mus_bint_to_char((unsigned char *)hdrbuf, 0); header_write(fd, hdrbuf, 4); } len = 1024 - (len + 20); if (len > 0) { unsigned char *combuf; combuf = (unsigned char *)calloc(len, sizeof(unsigned char)); header_write(fd, combuf, len); free(combuf); } } static int write_ircam_header(int fd, int wsrate, int wchans, mus_sample_t samp_type, const char *comment, int len) { mus_bint_to_char((unsigned char *)hdrbuf, 0x2a364); /* SUN id */ mus_bfloat_to_char((unsigned char *)(hdrbuf + 4), (float)wsrate); mus_bint_to_char((unsigned char *)(hdrbuf + 8), wchans); mus_bint_to_char((unsigned char *)(hdrbuf + 12), sndlib_format_to_ircam(samp_type)); header_write(fd, hdrbuf, 16); data_location = 1024; write_ircam_comment(fd, comment, len); return(MUS_NO_ERROR); } /* ------------------------------------ 8SVX ------------------------------------- * (also known as IFF) * * very similar to AIFF: * "BODY" => [4] samples [n] data * "VHDR" => srate (short) * "CHAN" => chans * "ANNO" and "NAME" * * big_endian throughout */ static int read_8svx_header(const char *filename, int fd, bool bytewise) { static const unsigned char I_BODY[4] = {'B','O','D','Y'}; static const unsigned char I_CHAN[4] = {'C','H','A','N'}; static const unsigned char I_VHDR[4] = {'V','H','D','R'}; int offset, chunkloc; bool happy = true; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); chunkloc = 12; offset = 0; if (bytewise) sample_type = MUS_BYTE; else sample_type = MUS_BSHORT; srate = 0; chans = 1; true_file_length = SEEK_FILE_LENGTH(fd); update_form_size = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); while (happy) { int chunksize; offset += chunkloc; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 32) <= 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s 8svx header: chunks confused at %d", filename, offset)); chunksize = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); if ((chunksize == 0) && /* can be empty data chunk? */ (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) break; if (chunksize < 0) break; if (match_four_chars((unsigned char *)hdrbuf, I_CHAN)) { chans = mus_char_to_bint((unsigned char *)(hdrbuf + 8)); chans = (chans & 0x01) + ((chans & 0x02) >> 1) + ((chans & 0x04) >> 2) + ((chans & 0x08) >> 3); /* what in heaven's name is this? Each bit corresponds to a channel? */ } else { if (match_four_chars((unsigned char *)hdrbuf, I_VHDR)) { /* num_samples (int) at hdrbuf + 8 */ srate = mus_char_to_ubshort((unsigned char *)(hdrbuf + 20)); original_sample_type = hdrbuf[23]; if (original_sample_type != 0) sample_type = MUS_UNKNOWN_SAMPLE; } else { if ((match_four_chars((unsigned char *)hdrbuf, I_ANNO)) || (match_four_chars((unsigned char *)hdrbuf, I_NAME))) { comment_start = offset + 8; comment_end = comment_start + chunksize - 1; } else { if (match_four_chars((unsigned char *)hdrbuf, I_BODY)) { data_size = chunksize; data_location = offset + 12; happy = false; } } } } chunkloc = (8 + chunksize); if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ } if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no BODY chunk?", filename)); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ VOC -------------------------------------- * * 0: "Creative Voice File" followed by a couple ctrl-Z ('32) (swapped data) * 20: header end (short) {8svx, 26 = data_offset, 0x10a = version, ((~version + 0x1234) & 0xffff) = 0x1129} * [20]: first block: * block code, 1 = data, 0 = end, 9 = data_16 (2 = continue, 3 = silence, 4 = marker, 5 = text, 6 = loop, 7 = loop-end, 8 = extended) * block len as 24 bit int(?) * if data, then rate code (byte), then data (assuming 8-bit unsigned, mono) * if data_16, long srate, byte: data size (8 or 16), byte chans * if text, ascii text (a comment) * if extended (8) precedes 1 (data): 8 4 then time constant (short), byte: packing code (0), byte chans (0 = mono) * * apparently always little_endian * updated extensively 29-Aug-95 from sox10 voc.c */ static int read_voc_header(const char *filename, int fd) { mus_long_t curbase; int voc_extended, bits, code; bool happy = true; sample_type = MUS_UBYTE; chans = 1; voc_extended = 0; true_file_length = SEEK_FILE_LENGTH(fd); curbase = mus_char_to_lshort((unsigned char *)(hdrbuf + 20)); if (true_file_length < curbase) return(mus_error(MUS_HEADER_READ_FAILED, "%s: block location %lld > file length: %lld", filename, curbase, true_file_length)); lseek(fd, curbase, SEEK_SET); header_read(fd, hdrbuf, HDRBUFSIZ); while (happy) { int type, len; type = (int)(hdrbuf[0]); len = (((int)hdrbuf[3]) << 16) + (((int)hdrbuf[2]) << 8) + (((int)hdrbuf[1])); if (type == 1) /* voc_data */ { data_size = len - 1; /* was -3 */ data_location = curbase + 6; if (voc_extended == 0) { srate = (int)(1000000.0 / (256 - ((int)(hdrbuf[4] & 0xff)))); original_sample_type = hdrbuf[5]; if (hdrbuf[5] == 0) sample_type = MUS_UBYTE; else sample_type = MUS_UNKNOWN_SAMPLE; } happy = false; } else { if (type == 9) /* voc_data_16 */ { data_size = len - 1; /* was -3 */ data_location = curbase + 6; srate = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); bits = ((int)hdrbuf[8]); if (bits == 8) { code = mus_char_to_lshort((unsigned char *)(hdrbuf + 10)); if (code == 6) sample_type = MUS_ALAW; else if (code == 7) sample_type = MUS_MULAW; else sample_type = MUS_UBYTE; } else if (bits == 16) sample_type = MUS_LSHORT; else sample_type = MUS_UNKNOWN_SAMPLE; chans = (int)hdrbuf[9]; if (chans == 0) chans = 1; happy = false; } else { if (((len + curbase) < true_file_length) && (type != 0)) { if (type == 5) /* voc_text */ { comment_start = curbase + 4; comment_end = comment_start + len - 1; } else { if (type == 8) /* voc_extended */ { /* should voc_extended be set to 1 here? */ srate = (256000000 / (65536 - mus_char_to_lshort((unsigned char *)(hdrbuf + 4)))); if ((int)(hdrbuf[7]) == 0) chans = 1; else chans = 2; if ((int)(hdrbuf[6]) != 0) sample_type = MUS_UNKNOWN_SAMPLE; } /* I'd add loop support here if I had any example sound files to test with */ } if (seek_and_read(fd, (unsigned char *)hdrbuf, curbase + len + 4, HDRBUFSIZ) <= 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s voc header: ran off end of file", filename)); curbase += len; } else happy = false; } } } if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no data(type 1 or 9) chunk?", filename)); if ((data_size > true_file_length) || (data_size < (mus_long_t)(true_file_length / 10))) /* some VOC files seem to have completely bogus lengths */ { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ TwinVQ ------------------------------------ * * from Audio Tools Library (atl.zip) at http://jfaul.de/atl. * a chunked header for proprietary (and apparently obsolete?) compressed data * * 0: "TWIN" * 4: version id (string) * 12: header size ["cardinal" -> bint] * common chunk header (4 of ID, bint size) * 24: channels (bint: 0=mono 1=stereo) * bitrate (bint) * 32: srate (bint khz 11, 22, 44 else *1000) * security (bint 0) * filesize (bint bytes) * possible chunks: NAME COMT AUTH (c) FILE ALBM DATA */ /* Monkey files start with "MAC ", but this is yet another compression-oriented format, I think (APE?) */ static int read_twinvq_header(const char *filename, int fd) { sample_type = MUS_UNKNOWN_SAMPLE; data_location = mus_char_to_bint((unsigned char *)(hdrbuf + 12)) + 16 + 8; chans = 1 + mus_char_to_bint((unsigned char *)(hdrbuf + 24)); srate = mus_char_to_bint((unsigned char *)(hdrbuf + 32)); if (srate == 11) srate = 11025; else if (srate == 22) srate = 22050; else if (srate == 44) srate = 44100; else srate = 48000; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); return(MUS_NO_ERROR); } /* ------------------------------------ SDIF ------------------------------------ * * not usable in this context -- even the apparently non-existent 1TDS (sampled data) * format consists of a sequence of chunks, each of any size. * Why invent an uncompressed format that makes random access impossible? */ static int read_sdif_header(const char *filename, int fd) { static const unsigned char I_1FQ0[4] = {'1','F','Q','0'}; static const unsigned char I_1STF[4] = {'1','S','T','F'}; static const unsigned char I_1PIC[4] = {'1','P','I','C'}; static const unsigned char I_1TRC[4] = {'1','T','R','C'}; static const unsigned char I_1HRM[4] = {'1','H','R','M'}; static const unsigned char I_1RES[4] = {'1','R','E','S'}; static const unsigned char I_1TDS[4] = {'1','T','D','S'}; /* samples -- all others are useless */ static const char *sdif_names[7] = {"fundamental frequency", "FFT", "spectral peak", "sinusoidal track", "harmonic track", "resonance", "unknown"}; int offset; bool happy = false; offset = 16; while (!happy) { int size; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 32) <= 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s, sdif header: chunks confused at %d", filename, offset)); size = mus_char_to_bint((unsigned char *)(hdrbuf + 4)) + 8; if (match_four_chars((unsigned char *)hdrbuf, I_1TDS)) break; else { int type = 0; if (match_four_chars((unsigned char *)hdrbuf, I_1FQ0)) type = 0; else if (match_four_chars((unsigned char *)hdrbuf, I_1STF)) type = 1; else if (match_four_chars((unsigned char *)hdrbuf, I_1PIC)) type = 2; else if (match_four_chars((unsigned char *)hdrbuf, I_1TRC)) type = 3; else if (match_four_chars((unsigned char *)hdrbuf, I_1HRM)) type = 4; else if (match_four_chars((unsigned char *)hdrbuf, I_1RES)) type = 5; else type = 6; return(mus_error(MUS_HEADER_READ_FAILED, "this SDIF file contains %s data, not sampled sound", sdif_names[type])); } offset += size; } return(MUS_HEADER_READ_FAILED); } #if G7XX /* ------------------------------------ NVF ------------------------------------ */ static int read_nvf_header(const char *filename, int fd) { static const unsigned char I_VFMT[4] = {'V','F','M','T'}; /* Nomad II Creative NVF */ /* info from nvftools by Tom Mander: */ /* Numbers stored little-endian. bytes 0-3: "NVF " magic number bytes 4-7: 0x00000001 NVF version number? bytes 8-11: 0x00000020 size of rest of header bytes 12-15: "VFMT" VFMT chunk h bytes 16-19: 0x00000001 VFMT version number? bytes 20-23: 0x00000014 size of reset of VFMT header bytes 24-27: 0x00007D00 32000 bit/s bitrate bytes 28-29: 0x0001 channels bytes 30-31: 0x0000 unknown bytes 32-35: 0x00001F40 8000kHz sample rate bytes 36-39: 0x00003E80 16000 bytes 40-41: 0x0002 width in bytes of uncompressed data? bytes 42-43: 0x0010 width in bits of compressed data? The rest of the data is G.721 data nibble packing big-endian, 4bits per sample (nibble) single channel at 32kbit. When the Nomad records an NVF file it does it in 92 sample (46 byte) framples or 0.0115sec. */ if (mus_char_to_lint((unsigned char *)(hdrbuf + 4)) != 1) return(mus_error(MUS_HEADER_READ_FAILED, "%s: NVF[4] != 1", filename)); if (!(match_four_chars((unsigned char *)(hdrbuf + 12), I_VFMT))) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no VFMT chunk", filename)); sample_type = MUS_UNKNOWN_SAMPLE; /* g721 --translate elsewhere */ chans = 1; srate = 8000; data_location = 44; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location) * 2; /* 4 bit samps? */ if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); return(MUS_NO_ERROR); } #endif /* ------------------------------------ ADC ------------------------------------ * also known as OGI format * TIMIT format is identical except it omits the sample type field (header size claims to be bytes) * * from ad.h and other files, ogitools-v1.0.tar.gz * we'll look for the big/little endian sequence (short) 8 1 1-or-2 given big/little decision * * 0: header size in shorts (8 = 16 bytes) (OGI says this is in bytes) * 2: version (1) * 4: chans * 6: rate (srate = 4000000/rate) * 8: samples (int) -- seems to be off by 2 -- are they counting ints here? * 12: sample type (0 = big-endian) * 16: data start */ static int read_adc_header(const char *filename, int fd) { bool little; little = (mus_char_to_uninterpreted_int((unsigned char *)(hdrbuf + 12)) != 0); /* 0 = big endian */ data_location = 16; if (little) sample_type = MUS_LSHORT; else sample_type = MUS_BSHORT; chans = big_or_little_endian_short((unsigned char *)(hdrbuf + 4), little); srate = 4000000 / big_or_little_endian_short((unsigned char *)(hdrbuf + 6), little); data_size = 2 * big_or_little_endian_int((unsigned char *)(hdrbuf + 8), little); comment_start = 0; comment_end = 0; true_file_length = SEEK_FILE_LENGTH(fd); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ AVR -------------------------------------- * * 0: "2BIT" * 4: sample name (null padded ASCII) * 12: chans (short) (0 = mono, -1 = stereo) * 14: sample size (8 or 16 bit) (short) (value is 8, 12, or 16) * 16: sample type (signed or unsigned) (short) (0 = unsigned, -1 = signed) * 18: loop (on/off), 20: midi (-1 = no MIDI) * 22: srate * avr.txt has: * 22: Replay speed 0 = 5.485 Khz, 1 = 8.084 Khz, 2 = 10.971 Khz, 3 = 16.168 Khz, 4 = 21.942 Khz, 5 = 32.336 Khz, 6 = 43.885 Khz, 7 = 47.261 Khz * 23: sample rate in Hertz (as a 3 byte quantity??) * 26: length in samples * 30: loop beg, 34: loop end, 38: midi (keyboard split), 40: compression, 42: nada ("reserved"), 44: name * 64: comment (limited to 64 bytes) * 128: data start * * the Atari .avr files appear to be 8000 Hz, mono, 8-bit linear unsigned data with an unknown header of 128 words * apparently there was a change in format sometime in the 90's. * * The actual avr files I've found on the net are either garbled, or * something is wrong with this definition (taken from CMJ and www.wotsit.org's avr.txt). * SGI dmconvert assumes big-endian here -- this is an Atari format, so it's probably safe to assume big-endian. */ static int read_avr_header(const char *filename, int fd) { int dsize, dsigned, i; chans = mus_char_to_bshort((unsigned char *)(hdrbuf + 12)); if (chans == 0) chans = 1; else if (chans == -1) chans = 2; else return(mus_error(MUS_HEADER_READ_FAILED, "%s chans: %d", filename, chans)); data_location = 128; data_size = mus_char_to_bint((unsigned char *)(hdrbuf + 26)); srate = mus_char_to_ubshort((unsigned char *)(hdrbuf + 24)); dsize = mus_char_to_bshort((unsigned char *)(hdrbuf + 14)); dsigned = mus_char_to_bshort((unsigned char *)(hdrbuf + 16)); if (dsize == 16) { if (dsigned == 0) sample_type = MUS_UBSHORT; else sample_type = MUS_BSHORT; } else { if (dsize == 8) { if (dsigned == 0) sample_type = MUS_UBYTE; else sample_type = MUS_BYTE; } else return(mus_error(MUS_HEADER_READ_FAILED, "%s: unknown sample type", filename)); } if (seek_and_read(fd, (unsigned char *)hdrbuf, 64, 64) <= 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s avr header: ran off end of file", filename)); comment_start = 64; i = 0; while ((i < 64) && (hdrbuf[i] != 0)) i++; comment_end = 64 + (i - 1); true_file_length = SEEK_FILE_LENGTH(fd); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ SNDT ------------------------------------- * * this taken from sndrtool.c (sox-10): (modified 6-Feb-98) * 0: "SOUND" (or off by two throughout if not "0x1a"?) * 5: 0x1a * 6-7: 0 * 8-11: nsamps (at 12) * 12-15: 0 * 16-19: nsamps * 20-21: srate (little endian short) (at 22) * 22-23: 0 * 24-25: 10 * 26-27: 4 * 28-> : "- File created by Sound Exchange" * .->95: 0 ? */ /* similar is Sounder format: * 0: 0 * 2: short srate (little endian) * 4: 10 * 6: 4 * then data * but this format can't be distinguished from a raw sound file */ static int read_sndt_header(const char *filename, int fd) { if (hdrbuf[4] != 'D') return(mus_error(MUS_HEADER_READ_FAILED, "%s: SNDT[4] != 'D'", filename)); sample_type = MUS_UBYTE; chans = 1; srate = mus_char_to_ulshort((unsigned char *)(hdrbuf + 20)); data_location = 126; data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 8)); if (data_size < 0) data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 10)); if (srate <= 1) srate = mus_char_to_ulshort((unsigned char *)(hdrbuf + 22)); true_file_length = SEEK_FILE_LENGTH(fd); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } return(MUS_NO_ERROR); } /* ------------------------------------ Covox v8 ------------------------------------- * * 0: 377 125 377 252 377 125 377 252 x x 0's to 16 * then 8-bit unsigned data */ static int read_covox_header(const char *filename, int fd) { sample_type = MUS_UBYTE; chans = 1; data_location = 16; srate = 8000; true_file_length = SEEK_FILE_LENGTH(fd); data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); return(MUS_NO_ERROR); } /* ------------------------------------ SMP ------------------------------------- * * 0: "SOUND SAMPLE DATA " * 18: "2.1 " * 22-81: comment * 82-111: sample name * header 112 bytes * long samples (bytes = samples*2) * then data start * data * always little endian */ static int read_smp_header(const char *filename, int fd) { sample_type = MUS_LSHORT; chans = 1; comment_start = 22; comment_end = 81; data_location = 116; lseek(fd, 112, SEEK_SET); if (read(fd, hdrbuf, 4) != 4) return(mus_error(MUS_HEADER_READ_FAILED, "%s: SMP header truncated?", filename)); data_size = (mus_char_to_lint((unsigned char *)hdrbuf)); sample_type = MUS_LSHORT; /* just a guess */ srate = 8000; /* docs mention an srate floating around at the end of the file, but I can't find it in any example */ true_file_length = SEEK_FILE_LENGTH(fd); if ((data_size * 2) > true_file_length) { data_size = (true_file_length - data_location) / 2; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } return(MUS_NO_ERROR); } /* ------------------------------------ SPPACK ------------------------------------- * * from AF docs: * Bytes Type Contents * 0 160 char Text strings (2 * 80) * 160 80 char Command line * 240 2 int Domain (1-time, 2-freq, 3-qfreq) * 242 2 int Frample size * 244 4 float Sampling frequency * 252 2 int File identifier (i.e. #o100 #o303) * 254 2 int Data type (0xfc0e = sampled data file) * 256 2 int Resolution (in bits 8, 16) * 258 2 int Companding flag * 272 240 char Text strings (3 * 80) * 512 ... -- Audio data * * at least one program is writing these headers using little endian data... */ static int read_sppack_header(const char *filename, int fd) { int typ; data_location = 512; chans = 1; lseek(fd, 240, SEEK_SET); if (read(fd, hdrbuf, 22) != 22) return(mus_error(MUS_HEADER_READ_FAILED, "%s SPPACK header truncated?", filename)); typ = mus_char_to_bshort((unsigned char *)hdrbuf); sample_type = MUS_UNKNOWN_SAMPLE; if (typ == 1) { if (((hdrbuf[254]) == 252) && ((hdrbuf[255]) == 14)) /* #xfc and #x0e */ { int bits; float sr; typ = mus_char_to_bshort((unsigned char *)(hdrbuf + 18)); bits = mus_char_to_bshort((unsigned char *)(hdrbuf + 16)); sr = mus_char_to_bfloat((unsigned char *)(hdrbuf + 4)); srate = (int)sr; switch (typ) { case 1: if (bits == 16) sample_type = MUS_BSHORT; else sample_type = MUS_BYTE; break; case 2: sample_type = MUS_ALAW; break; case 3: sample_type = MUS_MULAW; break; default: sample_type = MUS_UNKNOWN_SAMPLE; break; } data_size = SEEK_FILE_LENGTH(fd); data_size = mus_bytes_to_samples(sample_type, data_size - 512); comment_start = 0; comment_end = 0; } } true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); if (data_size > mus_bytes_to_samples(sample_type, true_file_length)) data_size = mus_bytes_to_samples(sample_type, true_file_length - data_location); return(MUS_NO_ERROR); } /* ------------------------------------ ESPS (Entropic Signal Processing System) ------------------------------------- * * specs at ftp.entropic.com (also known as "SD" format) * from AFgetInfoES.c: * * Bytes Type Contents * 8 -> 11 -- Header size (bytes) * 12 -> 15 int Sampled data record size * 16 -> 19 int File identifier: 0x00006a1a or 0x1a6a0000 * 40 -> 65 char File creation date * 124 -> 127 int Number of samples * 132 -> 135 int Number of doubles in a data record * 136 -> 139 int Number of floats in a data record * 140 -> 143 int Number of longs in a data record * 144 -> 147 int Number of shorts in a data record * 148 -> 151 int Number of chars in a data record * 160 -> 167 char User name * 333 -> H-1 -- "Generic" header items, including "record_freq" {followed by a "double8"=64-bit ?} * H -> ... -- Audio data */ static int read_esps_header(const char *filename, int fd) { char str[80]; bool happy = true; mus_long_t curbase, hend; int k, j, n, chars, floats, shorts, doubles; long long int bytes; bool little; little = (hdrbuf[18] == 0); if (little) data_location = mus_char_to_lint((unsigned char *)(hdrbuf + 8)); else data_location = mus_char_to_bint((unsigned char *)(hdrbuf + 8)); true_file_length = SEEK_FILE_LENGTH(fd); data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); srate = 8000; chans = 1; lseek(fd, 132, SEEK_SET); header_read(fd, hdrbuf, HDRBUFSIZ); if (little) { doubles = mus_char_to_lint((unsigned char *)hdrbuf); floats = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); shorts = mus_char_to_lint((unsigned char *)(hdrbuf + 12)); chars = mus_char_to_lint((unsigned char *)(hdrbuf + 16)); } else { doubles = mus_char_to_bint((unsigned char *)hdrbuf); floats = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); shorts = mus_char_to_bint((unsigned char *)(hdrbuf + 12)); chars = mus_char_to_bint((unsigned char *)(hdrbuf + 16)); } if (shorts != 0) { sample_type = ((little) ? MUS_LSHORT : MUS_BSHORT); chans = shorts; } else { if (doubles != 0) { sample_type = ((little) ? MUS_LDOUBLE_UNSCALED : MUS_BDOUBLE_UNSCALED); chans = doubles; } else { if (floats != 0) { sample_type = ((little) ? MUS_LFLOAT_UNSCALED : MUS_BFLOAT_UNSCALED); chans = floats; } else { if (chars != 0) { sample_type = MUS_BYTE; /* ?? */ chans = chars; } } } } /* search for "record_freq" to get srate */ lseek(fd, 333, SEEK_SET); header_read(fd, hdrbuf, HDRBUFSIZ); curbase = 333; hend = curbase + HDRBUFSIZ; k = 0; n = 0; for (j = 0; j < 80; j++) str[j] =' '; while (happy) { str[k] = hdrbuf[n]; if ((str[k] == 'q') || (str[k] == 3) || ((curbase + n + 1) >= data_location) || (k == 78)) { /* 3 = C-C marks end of record (?) */ str[k + 1] = 0; if (strcmp(str, "record_freq") == 0) { if (seek_and_read(fd, (unsigned char *)hdrbuf, curbase + n, 32) <= 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s esps header: ran off end of file", filename)); n = 0; if (little) srate = (int)mus_char_to_ldouble((unsigned char *)(hdrbuf + 8)); else srate = (int)mus_char_to_bdouble((unsigned char *)(hdrbuf + 8)); happy = false; } if ((curbase + n + 1) >= data_location) happy = false; k = 0; } else k++; n++; if (n >= hend) { curbase += hend; n = 0; bytes = read(fd, hdrbuf, HDRBUFSIZ); if (bytes != HDRBUFSIZ) break; hend = HDRBUFSIZ; } } if (srate == 0) srate = 8000; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ INRS ------------------------------------- * * from AFgetInfoIN.c: * * INRS-Telecommunications audio file: * Bytes Type Contents * 0 -> 3 float Sampling Frequency (VAX float format) * 6 -> 25 char Creation time (e.g. Jun 12 16:52:50 1990) * 26 -> 29 int Number of speech samples in the file (? -- old INRS files omit this) * The data in an INRS-Telecommunications audio file is in 16-bit integer (little-endian) * format. Header is always 512 bytes. Always mono. * */ static int read_inrs_header(const char *filename, int fd, int loc) { true_file_length = SEEK_FILE_LENGTH(fd); comment_start = 6; comment_end = 25; sample_type = MUS_LSHORT; srate = loc; chans = 1; data_location = 512; true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); data_size = mus_bytes_to_samples(sample_type, true_file_length - data_location); return(MUS_NO_ERROR); } /* ------------------------------------ MAUD ------------------------------------- * * very similar to AIFF: * "MHDR" => 4: chunksize (32) * 8: samples * 12: bits * 14: ditto * 16: clock freq * 20: clock div (srate = freq/div) * 22: chan info (0 = mono, 1 = stereo) * 24: ditto(?!) * 26: format (0 = unsigned 8 or signed 16 (see bits), 2 = alaw, 3 = mulaw) * 28-40: unused * "MDAT" => data * "ANNO" => comment * * according to /usr/share/magic, this stands for "MacroSystem Audio" */ static int read_maud_header(const char *filename, int fd) { static const unsigned char I_MHDR[4] = {'M','H','D','R'}; static const unsigned char I_MDAT[4] = {'M','D','A','T'}; int offset, chunkloc; bool happy = true; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); chunkloc = 12; offset = 0; sample_type = MUS_BYTE; srate = 0; chans = 1; update_form_size = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); while (happy) { int chunksize; offset += chunkloc; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 32) <= 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s maud header: chunks confused at %d", filename, offset)); chunksize = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); if ((chunksize == 0) && /* can be empty data chunk? */ (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) break; if (chunksize < 0) break; if (match_four_chars((unsigned char *)hdrbuf, I_MHDR)) { int num, den; data_size = mus_char_to_bint((unsigned char *)(hdrbuf + 8)); num = mus_char_to_bint((unsigned char *)(hdrbuf + 16)); den = mus_char_to_bshort((unsigned char *)(hdrbuf + 20)); if (den == 0) den = 1; srate = (int)(num / den); num = mus_char_to_bshort((unsigned char *)(hdrbuf + 12)); den = mus_char_to_bshort((unsigned char *)(hdrbuf + 26)); if (num == 8) { switch (den) { case 0: sample_type = MUS_UBYTE; break; case 2: sample_type = MUS_ALAW; break; case 3: sample_type = MUS_MULAW; break; default: sample_type = MUS_UNKNOWN_SAMPLE; break; } } else sample_type = MUS_BSHORT; num = mus_char_to_bshort((unsigned char *)(hdrbuf + 22)); if (num == 0) chans = 1; else chans = 2; } else { if (match_four_chars((unsigned char *)hdrbuf, I_ANNO)) { comment_start = offset + 8; comment_end = comment_start + chunksize - 1; } else { if (match_four_chars((unsigned char *)hdrbuf, I_MDAT)) { data_location = offset + 12; happy = false; } } } chunkloc = (8 + chunksize); if (chunksize & 1) chunkloc++; /* extra null appended to odd-length chunks */ } if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no MDAT chunk?", filename)); true_file_length = SEEK_FILE_LENGTH(fd); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ CSL ------------------------------------- * * "Computerized Speech Labs -- this info taken from wavesurfer/snack * * very similar to AIFF: * 0: FORM * 4: DS16 (kinda weird) * 8: size (int le) * 12: chunks * HEDR or HDR8 * 4: size (int) * samp: short, chans: 1 at 36 if not (int) -1, chans: 2? * srate at 28 (le int?) * other chunks: SD_B, SDA_ SDAB with data bytes as data followed by data */ static int read_csl_header(const char *filename, int fd) { static const unsigned char I_HEDR[4] = {'H','E','D','R'}; static const unsigned char I_HDR8[4] = {'H','D','R','8'}; static const unsigned char I_SDA_[4] = {'S','D','A','_'}; static const unsigned char I_SDAB[4] = {'S','D','A','B'}; static const unsigned char I_SD_B[4] = {'S','D','_','B'}; static const unsigned char I_NOTE[4] = {'N','O','T','E'}; int offset, chunkloc; bool happy = true; type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); chunkloc = 12; offset = 0; sample_type = MUS_LSHORT; srate = 0; chans = 1; update_form_size = mus_char_to_lint((unsigned char *)(hdrbuf + 8)); while (happy) { int chunksize; offset += chunkloc; if (seek_and_read(fd, (unsigned char *)hdrbuf, offset, 64) <= 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s csl header: chunks confused at %d", filename, offset)); chunksize = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); if ((chunksize == 0) && /* can be empty data chunk? */ (hdrbuf[0] == 0) && (hdrbuf[1] == 0) && (hdrbuf[2] == 0) && (hdrbuf[3] == 0)) break; if (chunksize < 0) break; if ((match_four_chars((unsigned char *)hdrbuf, I_HEDR)) || (match_four_chars((unsigned char *)hdrbuf, I_HDR8))) { /* 8..20: date as ascii */ /* 32: data length (int) in bytes */ if ((mus_char_to_lshort((unsigned char *)(hdrbuf + 36)) != -1) && /* these are maxamps, -1=none */ (mus_char_to_lshort((unsigned char *)(hdrbuf + 38)) != -1)) chans = 2; srate = mus_char_to_lint((unsigned char *)(hdrbuf + 28)); } else { if (match_four_chars((unsigned char *)hdrbuf, I_NOTE)) { comment_start = offset + 8; comment_end = comment_start + chunksize - 1; } else { if ((match_four_chars((unsigned char *)hdrbuf, I_SDA_)) || (match_four_chars((unsigned char *)hdrbuf, I_SDAB)) || (match_four_chars((unsigned char *)hdrbuf, I_SD_B))) { data_location = offset + 8; data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 4)); happy = false; } } } chunkloc = (8 + chunksize); if (chunksize & 1) chunkloc++; } if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no SDxx chunk?", filename)); true_file_length = SEEK_FILE_LENGTH(fd); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ snack SMP ------------------------------------- * * there's apparently yet another "smp" format (from nist??) * file = samp * sftot = 22050 * msb = last * nchans = 1 * preemph = none * born = snack * msb = last here -> little endian? * data at 1024 */ static int read_file_samp_header(const char *filename, int fd) { int i = 0; unsigned char *locbuf; data_location = 1024; chans = 1; srate = 8000; sample_type = MUS_LSHORT; lseek(fd, 10, SEEK_SET); locbuf = (unsigned char *)calloc(1024, sizeof(unsigned char)); header_read(fd, locbuf, 1024); while (i < 1024) { if (strncmp((char *)(locbuf + i), "sftot", 5) == 0) sscanf((const char *)(&locbuf[i + 6]), "%12d", &srate); if (strncmp((char *)(locbuf + i), "nchans", 6) == 0) sscanf((const char *)(&locbuf[i + 7]), "%12d", &chans); if (strncmp((char *)(locbuf + i), "msb", 3) == 0) if (strncmp((char *)(locbuf + i + 4), "first", 5) == 0) sample_type = MUS_BSHORT; while ((i < 1024) && (locbuf[i] != 10) && (locbuf[i] != 0)) i++; i++; } free(locbuf); true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); data_size = mus_bytes_to_samples(sample_type, true_file_length - data_location); return(MUS_NO_ERROR); } /* ------------------------------------ Sound Designer I ------------------------------------- * * complicated and defined in terms of Pascal records, so the following is a stab in the dark: * * 0: 1336 (i.e. header size) * 764: comment (str255) * 1020: sample rate (long) * 1028: data size (short) * 1030: a code string describing the data type (i.e. "linear") (str32) * 1064: user comment (str255) * * file type: 'SFIL' * * always big_endian */ static int read_sd1_header(const char *filename, int fd) { int n; chans = 1; data_location = 1336; lseek(fd, 1020, SEEK_SET); if (read(fd, hdrbuf, 64) != 64) return(mus_error(MUS_HEADER_READ_FAILED, "%s Sound Designer I header truncated?", filename)); srate = mus_char_to_bint((unsigned char *)hdrbuf); n = mus_char_to_bshort((unsigned char *)(hdrbuf + 8)); if (n == 16) sample_type = MUS_BSHORT; else sample_type = MUS_BYTE; true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); data_size = mus_bytes_to_samples(sample_type, true_file_length - data_location); n = ((unsigned char)hdrbuf[44]); if (n != 0) { comment_start = 1064; comment_end = comment_start + n - 1; } return(MUS_NO_ERROR); } /* ------------------------------------ PSION alaw ------------------------------------- * * 0: "ALawSoundFile**" * 16: version * 18: length (bytes) * 22: padding * 24: repeats * 26-32: nada * 32: data * * always mono 8-bit alaw 8000 Hz. All the examples on the psion net site appear to be little endian. */ static int read_psion_header(const char *filename, int fd) { if ((hdrbuf[13] != '*') || (hdrbuf[14] != '*')) return(mus_error(MUS_HEADER_READ_FAILED, "%s: PSION[13, 14] != '*'", filename)); chans = 1; data_location = 32; srate = 8000; sample_type = MUS_ALAW; data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 18)); /* always little-endian? */ true_file_length = SEEK_FILE_LENGTH(fd); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Gravis Ultrasound Patch ------------------------------------- * * http://www.gravis.com/Public/sdk/PATCHKIT.ZIP * * header [128], instruments [62], layers [49], waveheaders (nested) * always little endian, actual files don't match exactly with any documentation * * Header block: * 0: "GF1PATCH100" or "GF1PATCH110" * 12: "ID#000002" * 22: comment (copyright notice) (60 bytes ASCIZ) * 82: number of instruments * 83: number of voices * 84: wave channels * 85: number of waves * 87: vol * 89: size? * 93: reserved (36? bytes) * * Instrument block: * 0: id * 2: name (16 bytes) * 18: size * 22: number of layers * 23: reserved (40? bytes) * * Layer block: * 0: "previous" * 1: id * 2: size * 6: number of wave samples * 10: reserved (40? bytes) * * Wave block: * 0: name (7 bytes ASCIZ) * 7: "fractions" * 8: data size of wave sample * 12: loop start * 16: loop end * 20: sample rate * 22: low freq * 26: high freq * 30: root freq * 34: tune * 36: balance * 37: envelope data (6+6 bytes I think) * 49: tremolo and vibrato data (6 bytes) * 55: mode bit 0: 8/16, 1: signed/unsigned * 56: scale freq * 58: scale factor * 60: reserved (36 bytes) * followed by data presumably */ static int read_gravis_header(const char *filename, int fd) { int mode; chans = hdrbuf[84]; if (chans == 0) chans = 1; comment_start = 22; comment_end = 81; lseek(fd, 239, SEEK_SET); /* try to jump to wave sample block (128+62+49) */ header_read(fd, hdrbuf, 128); srate = mus_char_to_ulshort((unsigned char *)(hdrbuf + 20)); data_size = mus_char_to_ulshort((unsigned char *)(hdrbuf + 8)); mode = hdrbuf[55]; if (mode & 1) { if (mode & 2) sample_type = MUS_ULSHORT; else sample_type = MUS_LSHORT; } else { if (mode & 2) sample_type = MUS_UBYTE; else sample_type = MUS_BYTE; } data_location = 337; true_file_length = SEEK_FILE_LENGTH(fd); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Goldwave ------------------------------------- * * http://web.cs.mun.ca/~chris3/goldwave/goldwave.html */ static int read_goldwave_header(const char *filename, int fd) { chans = 1; data_location = 28; sample_type = MUS_LSHORT; data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 22)); true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); if ((data_size <= 24) || (data_size > true_file_length)) data_size = (true_file_length - data_location) / 2; else data_size /= 2; srate = mus_char_to_lint((unsigned char *)(hdrbuf + 18)); return(MUS_NO_ERROR); } /* ------------------------------------ Sonic Resource Foundry ------------------------------------- * * more reverse engineering... * http://www.sfoundry.com/ */ static int read_srfs_header(const char *filename, int fd) { chans = 1; /* might be short at header[4] */ data_location = 32; true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); data_size = (true_file_length - data_location) / 2; srate = mus_char_to_lint((unsigned char *)(hdrbuf + 6)); sample_type = MUS_LSHORT; return(MUS_NO_ERROR); } /* ------------------------------------ Quicktime ------------------------------------- * * infinitely complicated -- see Quicktime File Format doc from Apple. * there's no relation between this document and actual files -- a bizarre joke? */ static int read_qt_header(const char *filename, int fd) { chans = 1; data_location = 12; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); srate = 11025; /* ?? */ sample_type = MUS_UBYTE; return(MUS_NO_ERROR); } /* ------------------------------------ SBStudioII ------------------------------------- * * from a file created by Convert 1.4 * 0: SND * 8: file size - 8 * SNNA SNIN SNDT blocks: * * built in blocks, other names are SNIN, SNDT * need to scan for SNDT, block length, data * SNNA len name * supposedly ends with END (but my examples don't) * SNIN: * num (2), reserved (2), tuning (1), vol (2), type (2) bit 0: 1 = PCM, bit 1: 1 = 16, 0 = 8 (then loop data) * info from Pac.txt (pac.zip) at http://www.wotsit.org/music.htm */ static int read_sbstudio_header(const char *filename, int fd) { static const unsigned char I_SNIN[4] = {'S','N','I','N'}; static const unsigned char I_SNNA[4] = {'S','N','N','A'}; static const unsigned char I_SNDT[4] = {'S','N','D','T'}; int i, tmp; bool happy = true; unsigned char *bp; chans = 1; srate = 8000; /* no sampling rate field in this header */ sample_type = MUS_UNKNOWN_SAMPLE; true_file_length = SEEK_FILE_LENGTH(fd); i = 8; bp = (unsigned char *)(hdrbuf + 8); while (happy) { if (match_four_chars(bp, I_SNDT)) { data_size = mus_char_to_lint((unsigned char *)(bp + 4)); data_location = i + 8; happy = false; } else { if (match_four_chars(bp, I_SNIN)) { tmp = mus_char_to_lshort((unsigned char *)(bp + 15)); if ((tmp & 1) == 0) sample_type = MUS_UNKNOWN_SAMPLE; else { if ((tmp & 2) == 0) sample_type = MUS_BYTE; else sample_type = MUS_LSHORT; } i += 26; bp += 26; } else { if (match_four_chars(bp, I_SNNA)) { tmp = mus_char_to_lint((unsigned char *)(bp + 4)); i += tmp; bp += tmp; } else { i++; bp++; } } } if (i >= HDRBUFSIZ) { sample_type = MUS_UNKNOWN_SAMPLE; happy = false; } } if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: no SNDT chunk?", filename)); if ((data_size == 0) || (sample_type == MUS_UNKNOWN_SAMPLE)) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data size or sample type bogus", filename)); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Delusion Sound ------------------------------------- * * more reverse engineering... * from a file created by Convert 1.4 * 0: DDSF * 5: name (text) * 55: data * probaby similar to DMF format described in Dmf-form.txt but I don't see any other block names in the data */ static int read_delusion_header(const char *filename, int fd) { if ((hdrbuf[4] != 1) || (hdrbuf[5] > 128) || (hdrbuf[6] > 128) || (hdrbuf[7] > 128)) return(mus_error(MUS_HEADER_READ_FAILED, "%s DDSF name bogus", filename)); chans = 1; data_location = 55; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); srate = 8000; sample_type = MUS_LSHORT; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Farandole Composer WaveSample ------------------------------------- * * 0: FSM 254 * libmodplug load_far.cpp uses: #define FARFILEMAGIC 0xFE524146 ("FAR="?) * 4: name (text) (32 bytes) * 36: 10, 13, 26 or something like that * 39: len? * 40: volume * 41: looping data * 49: type (0 = 8-bit, else 16) * 50: loop mode * 51: data * described in Fsm.txt and Far-form.txt http://www.wotsit.org/music.htm */ static int read_farandole_header(const char *filename, int fd) { chans = 1; data_location = 51; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); srate = 8000; if (hdrbuf[49] == 0) sample_type = MUS_BYTE; else sample_type = MUS_LSHORT; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Yamaha TX-16W ------------------------------------- * * ftp://ftp.t0.or.at/pub/sound/tx16w/samples.yamaha * ftp://ftp.t0.or.at/pub/sound/tx16w/faq/tx16w.tec * http://www.t0.or.at/~mpakesch/tx16w/ * * from tx16w.c sox 12.15: (7-Oct-98) (Mark Lakata and Leigh Smith) * char filetype[6] "LM8953" * nulls[10], * dummy_aeg[6] * format 0x49 = looped, 0xC9 = non-looped * sample_rate 1 = 33 kHz, 2 = 50 kHz, 3 = 16 kHz * atc_length[3] if sample rate 0, [2]&0xfe = 6: 33kHz, 0x10:50, 0xf6: 16, depending on [5] but to heck with it * rpt_length[3] (these are for looped samples, attack and loop lengths) * unused[2] */ static int read_tx16w_header(const char *filename, int fd) { if ((hdrbuf[4] != '5') || (hdrbuf[5] != '3')) return(mus_error(MUS_HEADER_READ_FAILED, "%s TX16 magic number bogus", filename)); chans = 1; data_location = 32; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); srate = 16000; if (hdrbuf[23] == 1) srate = 33000; else if (hdrbuf[23] == 2) srate = 50000; else if (hdrbuf[23] == 3) srate = 16000; else if (hdrbuf[23] == 0) { if ((hdrbuf[26] & 0xFE) == 6) srate = 33000; else if ((hdrbuf[26] & 0xFE) == 0x10) srate = 50000; else if ((hdrbuf[26] & 0xFE) == 0xf6) srate = 16000; } original_sample_type = MUS_UNKNOWN_SAMPLE; sample_type = MUS_UNKNOWN_SAMPLE; data_size = (mus_long_t)((double)data_size / 1.5); if (hdrbuf[22] == 0x49) { loop_modes[0] = 1; loop_starts[0] = ((hdrbuf[26] & 1) << 16) + (hdrbuf[25] << 8) + hdrbuf[24]; loop_ends[0] = loop_starts[0] + ((hdrbuf[29] & 1) << 16) + (hdrbuf[28] << 8) + hdrbuf[27]; } return(MUS_NO_ERROR); } /* ------------------------------------ Yamaha SY-85 and SY-99 ------------------------------------- * * more reverse engineering... * 0: SY85 (SY80 is SY-99) SY85ALL SY80 SYALL * 5: name ("WAVE1") * (26 int len) * (33: comment or prompt?) * data in 16-bit little endian (?) */ static int read_sy85_header(const char *filename, int fd) { if ((hdrbuf[4] != ' ') && (hdrbuf[4] != 'A')) return(mus_error(MUS_HEADER_READ_FAILED, "%s: unknown magic number", filename)); chans = 1; data_location = 1024; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); srate = 8000; /* unknown */ sample_type = MUS_BSHORT; /* not right */ data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Kurzweil 2000 ------------------------------------- * * "PRAM" then header len as big endian int?? * from krz2tx.c (Mark Lakata) */ static int read_kurzweil_2000_header(const char *filename, int fd) { chans = 1; data_location = mus_char_to_bint((unsigned char *)(hdrbuf + 4)); true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); srate = 44100; /* unknown */ sample_type = MUS_BSHORT; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Korg ------------------------------------- * * "SMP1" -- guessing on the rest */ static int read_korg_header(const char *filename, int fd) { chans = 1; data_location = 70; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); srate = mus_char_to_bint((unsigned char *)(hdrbuf + 48)); sample_type = MUS_BSHORT; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Maui ------------------------------------- * * "Maui" -- guessing on the rest */ static int read_maui_header(const char *filename, int fd) { lseek(fd, 420, SEEK_SET); if (read(fd, hdrbuf, 64) != 64) return(mus_error(MUS_HEADER_READ_FAILED, "%s truncated maui header?", filename)); chans = 1; data_location = 776; true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 8)); if ((data_size * 2) > true_file_length) data_size = (true_file_length - data_location) / 2; srate = mus_char_to_lint((unsigned char *)(hdrbuf)); sample_type = MUS_LSHORT; return(MUS_NO_ERROR); } /* ------------------------------------ Impulse Tracker ------------------------------------- * * data from its2raw.c by Ben Collver * 0: IMPS * 4: filename (12 bytes) * 17: global vol * 18: flags (1: 16-bit or 8(0), 2: stereo or mono(0) * 19: default vol * 20: sample name (26 bytes) * 46: convert * 47: default pan * 48: length (samps) * 52: loop start * 56: loop end * 60: srate * 64: sustain loop start * 68: sustain loop end * 72: data location * 76: vib speed * 77: vib depth * 78: vib wave * 79: vib rate */ static int read_impulsetracker_header(const char *filename, int fd) { if (hdrbuf[18] & 4) chans = 2; else chans = 1; if (hdrbuf[18] & 2) sample_type = MUS_LSHORT; else sample_type = MUS_BYTE; data_location = mus_char_to_lint((unsigned char *)(hdrbuf + 72)); true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); data_size = (true_file_length - data_location); srate = mus_char_to_lint((unsigned char *)(hdrbuf + 60)); data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } #if 0 /* ------------------------------------ AKAI 3? ------------------------------------- */ static int read_akai3_header(const char *filename, int fd) { chans = 1; data_location = 192; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); if (hdrbuf[1] == 0) srate = 22050; else srate = 44100; sample_type = MUS_LSHORT; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } #endif /* ------------------------------------ AKAI 4 ------------------------------------- * * 1, 4, info from Paul Kellet -- lost the url ("MPC-2000") */ static int read_akai4_header(const char *filename, int fd) { chans = hdrbuf[21] + 1; data_location = 42; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); srate = mus_char_to_ulshort((unsigned char *)(hdrbuf + 40)); sample_type = MUS_LSHORT; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ PVF (portable voice format) ------------------------------------- * * info from mgetty-voice-1.1.22/voice/libpvf/lib.c * this is a modem-related interchange format * * PVF1\n * 1 11025 32\n * then data * PVF1 = binary data, PVF2 = ascii * chans | srate | sample size */ static int read_pvf_header(const char *filename, int fd) { char *buf; int bits, i; if (hdrbuf[4] != '\n') return(mus_error(MUS_HEADER_READ_FAILED, "PVF header messed up")); type_specifier = mus_char_to_uninterpreted_int((unsigned char *)hdrbuf); buf = (char *)(hdrbuf + 5); sscanf(buf, "%12d %12d %12d", &chans, &srate, &bits); if (chans < 1) chans = 1; if (srate < 0) srate = 8000; if (bits < 8) bits = 8; for (i = 6; i < INITIAL_READ_SIZE; i++) if (hdrbuf[i] == '\n') { data_location = i + 1; break; } if (data_location == 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s PVF header bad data location", filename)); if (match_four_chars((unsigned char *)hdrbuf, I_PVF2)) { sample_type = MUS_UNKNOWN_SAMPLE; /* ascii text */ return(mus_error(MUS_HEADER_READ_FAILED, "%s PVF header unknown sample type", filename)); } /* big endian data -- they're using htonl etc */ if (bits == 8) sample_type = MUS_BYTE; else if (bits == 16) sample_type = MUS_BSHORT; else sample_type = MUS_BINT; true_file_length = SEEK_FILE_LENGTH(fd); data_size = mus_bytes_to_samples(sample_type, true_file_length - data_location); return(MUS_NO_ERROR); } /* ------------------------------------ Ultratracker WaveSample ------------------------------------- * * 0..31: name (32 = ctrl-Z?) * 33: PMUWFD (but docs say this is "dos name" -- perhaps we can't recognize this header type reliably) * 44: 4 ints giving loop and size data * 60: vol * 61: "bidi" 0|8|24->8 bit else 16 -- but actual example has 0 with 16-bit * 62: finetune * 64: data (or 68?) * described in Ult-form.txt http://www.wotsit.org/music.htm */ static int read_ultratracker_header(const char *filename, int fd) { chans = 1; data_location = 64; true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); data_size = (true_file_length - data_location); srate = 8000; sample_type = MUS_LSHORT; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Sample dump exchange ------------------------------------- * * 0: SDX: * sdx2tx.c (Mark Lakata) reads from 4 for 26 (^z), then * version (1) * comment as pascal-style string (byte len, bytes chars) * then 23 bytes: * 0: packing (0 = pcm) * 1: midi channel * 2 + 256*[3]: sample number * 4: sample type (15: 16 bit unsigned(?), 8: 8bit unsigned(?) * 5: sample rate (big int?) * 9: sample length * 13: loop start * 17: loop end * 21: loop type * 22: reserved */ static int read_sample_dump_header(const char *filename, int fd) { int i, len; for (i = 4; i < HDRBUFSIZ; i++) if (hdrbuf[i] == 26) break; len = hdrbuf[i + 2]; if (len > 0) { comment_start = i + 3; comment_end = i + 3 + len; } seek_and_read(fd, (unsigned char *)hdrbuf, i + 3 + len, HDRBUFSIZ); srate = mus_char_to_lint((unsigned char *)(hdrbuf + 5)); loop_modes[0] = 0; if (hdrbuf[21] == 0) { loop_modes[0] = 1; loop_starts[0] = mus_char_to_lint((unsigned char *)(hdrbuf + 13)); loop_ends[0] = mus_char_to_lint((unsigned char *)(hdrbuf + 17)); } /* data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 9)); */ if ((srate < 100) || (srate > 100000)) srate = 8000; chans = 1; data_location = i + 3 + len + 23; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); if (hdrbuf[0] == 0) sample_type = MUS_ULSHORT; else sample_type = MUS_UNKNOWN_SAMPLE; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Digiplayer ST3 ------------------------------------- * * 0: 1 (use 'SCRS' at 76) * 1: name * 13: nada * 14: "paragraph" offset of sample data * 16: length in bytes (looks like #samples in the actual files...) * 20: loop start * 24: loop end * 28: vol * 29: ? * 30: 0 = unpacked, 1 = DP30ADPCM * 31: bits: 0 = loop, 1 = stereo (chans not interleaved!), 2 = 16-bit samples (little endian) * 32: freq * 36: nada * 40: nada * 42: 512 * 44: date? * 48: sample name (28 char ASCIZ) * 76: 'SCRS' * 80: data starts * * info from http://www.wotsit.org/ S3m-form.txt */ static int read_digiplayer_header(const char *filename, int fd) { chans = 1; data_location = 80; true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); srate = 8000; sample_type = MUS_ULSHORT; if (hdrbuf[30] & 2) chans = 2; if (hdrbuf[30] & 1) sample_type = MUS_UNKNOWN_SAMPLE; else { if (hdrbuf[30] & 4) sample_type = MUS_UBYTE; /* may be backwards -- using Convert 1.4 output here */ } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ CSRE adf ------------------------------------- * * Info from Stuart Rosen * * 0-7: CSRE40 * 8: samples in file (long) * 12: center line(?) (long) * 16: start channel(?) (unsigned) * 18: bits -- 12 or 16 (unsigned) -- is 12 bit sample file packed? * 20: number system (0 = signed, 1 = unsigned) * 22: srate in kHz (float) * 26: peak sample in file (long) (can be 0) * 30-511: comment possibly * * probably always little-endian (S.R. reads each sample using sizeof(int) -> 16 bits I think) * if 12-bit unsigned we need to handle the offset somewhere */ static int read_adf_header(const char *filename, int fd) { int bits, numsys; lseek(fd, 0, SEEK_SET); if ((hdrbuf[4] != '4') || (hdrbuf[5] != '0')) return(mus_error(MUS_HEADER_READ_FAILED, "%s csre header bad magic number", filename)); if (read(fd, hdrbuf, 30) != 30) return(mus_error(MUS_HEADER_READ_FAILED, "%s csre header truncated?", filename)); chans = 1; numsys = mus_char_to_ulshort((unsigned char *)(hdrbuf + 20)); bits = mus_char_to_ulshort((unsigned char *)(hdrbuf + 18)); if ((bits == 16) || (bits == 12)) { if (numsys == 0) sample_type = MUS_LSHORT; else sample_type = MUS_ULSHORT; } else sample_type = MUS_UNKNOWN_SAMPLE; srate = (int)(1000 * mus_char_to_lfloat((unsigned char *)(hdrbuf + 22))); data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 8)); data_location = 512; true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); if (data_size > mus_bytes_to_samples(sample_type, true_file_length - data_location)) data_size = mus_bytes_to_samples(sample_type, true_file_length - data_location); return(MUS_NO_ERROR); } /* ------------------------------------ Diamondware ------------------------------------- * * info from Keith Weiner at DiamondWare (www.dw.com): * * 0-22: DWD Header Byte "DiamondWare Digitized\n\0" * 23: 1A (EOF to abort printing of file) * 24: Major version number * 25: Minor version number * 26-29: Unique sound ID (checksum XOR timestamp) * 30: Reserved * 31: Compression type (0 = none) * 32-33: Sampling rate (in Hz) * 34: Number of channels (1 = mono, 2 = stereo) (interleaved) * 35: Number of bits per sample (8, 16) (all data signed) * 36-37: Absolute value of largest sample in file * 38-41: length of data section (in bytes) * 42-45: # samples (16-bit stereo is 4 bytes/sample) * 46-49: Offset of data from start of file (in bytes) * 50-53: Reserved for future expansion (markers) * 54-55: Padding * 56:offset -- additional text: field = value * suggested fields: TITLE, ORGARTIST, GENRE, KEYWORDS, ORGMEDIUM, EDITOR, DIGITIZER, COMMENT, SUBJECT, COPYRIGHT, SOFTWARE, CREATEDATE * * since this is all Windows/DOS oriented, I'll assume little-endian byte order. */ static int read_diamondware_header(const char *filename, int fd) { chans = hdrbuf[34]; if (hdrbuf[31] == 0) { if (hdrbuf[35] == 8) sample_type = MUS_BYTE; else sample_type = MUS_LSHORT; } else { sample_type = MUS_UNKNOWN_SAMPLE; return(mus_error(MUS_HEADER_READ_FAILED, "%s unknown sample type", filename)); } srate = mus_char_to_ulshort((unsigned char *)(hdrbuf + 32)); data_size = mus_char_to_lint((unsigned char *)(hdrbuf + 38)); data_location = mus_char_to_lint((unsigned char *)(hdrbuf + 46)); true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); if (data_size > true_file_length - data_location) data_size = true_file_length - data_location; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Ensoniq Paris ------------------------------------- * _paf -> Ensoniq Paris? (this info from libaudiofile) * 0 paf (or fap) * 4 version (0) * 8 endianess (0 = big) * 12 rate (unsigned int) * 16 format (0: 16-bit linear, 24-bit linear) * 20 channels * 24 source (an encoded comment) * 2048 data (24 bit files are compressed) */ static int read_paf_header(const char *filename, int fd) { int form; bool little = false; sample_type = MUS_UNKNOWN_SAMPLE; if (mus_char_to_bint((unsigned char *)(hdrbuf + 8))) little = true; if (little) { srate = mus_char_to_ulint((unsigned char *)(hdrbuf + 12)); form = mus_char_to_ulint((unsigned char *)(hdrbuf + 16)); if (form == 0) sample_type = MUS_LSHORT; if (form == 2) sample_type = MUS_BYTE; chans = mus_char_to_ulint((unsigned char *)(hdrbuf + 20)); } else { srate = mus_char_to_ubint((unsigned char *)(hdrbuf + 12)); form = mus_char_to_ubint((unsigned char *)(hdrbuf + 16)); if (form == 0) sample_type = MUS_BSHORT; if (form == 2) sample_type = MUS_BYTE; chans = mus_char_to_ubint((unsigned char *)(hdrbuf + 20)); } data_location = 2048; true_file_length = SEEK_FILE_LENGTH(fd); if (true_file_length < data_location) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_location %lld > file length: %lld", filename, data_location, true_file_length)); if (sample_type != MUS_UNKNOWN_SAMPLE) data_size = mus_bytes_to_samples(sample_type, true_file_length - 2048); return(MUS_NO_ERROR); } /* ------------------------------------ Comdisco SPW ------------------------------------- * info from AFsp libtsp/AF/nucleus/AFgetSWpar.c * * header is text as in NIST: * * $SIGNAL_FILE 9\n (12 chars) * $USER_COMMENT * * $COMMON_INFO * SPW Version = 3.10 * System Type = (e.g. "sun4", "hp700") * Sampling Frequency = (e.g. "8000") * Starting Time = 0 * $DATA_INFO * Number of points = (e.g. "2000") * Signal Type = ("Double", "Float", "Fixed-point", "Integer", "Logical") * Fixed Point Format = <16, 0, t> <16, 16, t> <8, 8, t> <8, 0, t> (optional) * Complex Format = Real_Imag (optional) * $DATA ("ASCII", "BINARY") * * the fixed point is decoded as n = number of bits total per sample, m = integer bits, b = t: signed, u: unsigned * if $DATA ASCII, data is ascii text as in IEEE text files. * There are other complications as well. We'll just hack up a stop-gap until someone complains. */ static int read_comdisco_header(const char *filename, int fd) { /* need to grab a line at a time, call strcmp over and over. This is very tedious. */ char *line = NULL; int i, j, k, m, n, curend, offset, len, type, d_size = 0; bool happy = true, little, commenting; k = 15; line = (char *)calloc(256, sizeof(char)); little = false; offset = 0; type = 0; srate = 0; curend = INITIAL_READ_SIZE; commenting = false; while (happy) { for (i = 0; i < 256; i++) { if (k == curend) { offset += curend; if (read(fd, hdrbuf, HDRBUFSIZ) != HDRBUFSIZ) { free(line); return(mus_error(MUS_HEADER_READ_FAILED, "%s comdisco header truncated?", filename)); } k = 0; curend = HDRBUFSIZ; } if (hdrbuf[k] == '\n') { k++; break; } line[i] = hdrbuf[k++]; } line[i] = '\0'; if ((strcmp(line, "$DATA BINARY") == 0) || (strcmp(line, "$DATA ASCII") == 0)) { happy = false; data_location = offset + k; } if (strcmp(line, "$USER_COMMENT") == 0) { comment_start = offset + k; commenting = true; } else { if (commenting) { if (line[0] == '$') { comment_end = offset + k - 2 - strlen(line); commenting = false; } } } if (line[0] != '$') { char portion[32]; char value[32]; len = strlen(line); for (j = 0; j < 8; j++) portion[j] = line[j]; portion[8] ='\0'; for (j = 8; j < len; j++) if (line[j] == '=') break; for (n = 0, m = j + 2; m < len; m++, n++) value[n] = line[m]; value[n] ='\0'; if (strcmp(portion, "Sampling") == 0) sscanf(value, "%12d", &srate); else if (strcmp(portion, "Number o") == 0) sscanf(value, "%12d", &d_size); else if (strcmp(portion, "Signal T") == 0) {if (value[1] == 'o') type = 2; else if (value[1] == 'l') type = 1;} else if (strcmp(portion, "Fixed Po") == 0) {if (value[1] == '8') type = 3;} } } /* now clean up this mess */ if (data_location == 0) {free(line); return(mus_error(MUS_HEADER_READ_FAILED, "%s: no $DATA BINARY field?", filename));} if (srate == 0) {free(line); return(mus_error(MUS_HEADER_READ_FAILED, "%s: srate == 0", filename));} chans = 1; if (d_size != 0) data_size = (mus_long_t)d_size; switch (type) { case 0: if (little) sample_type = MUS_LSHORT; else sample_type = MUS_BSHORT; break; case 1: if (little) sample_type = MUS_LFLOAT; else sample_type = MUS_BFLOAT; break; case 2: if (little) sample_type = MUS_LDOUBLE; else sample_type = MUS_BDOUBLE; break; case 3: sample_type = MUS_BYTE; break; } true_file_length = SEEK_FILE_LENGTH(fd); if (data_size > mus_bytes_to_samples(sample_type, true_file_length - data_location)) data_size = mus_bytes_to_samples(sample_type, true_file_length - data_location); free(line); return(MUS_NO_ERROR); } /* ------------------------------------ MS ASF ------------------------------------- * * asf format is described at http://www.microsoft.com/asf/specs.htm * http://www.microsoft.com/asf/spec3/ASF0198ps.exe * * this header is completely insane */ static int read_asf_header(const char *filename, int fd) { /* a chunked sample type, so not really acceptable here or elsewhere -- needs to be unchunked */ int len, ilen = 0, i, j, bits = 0; bool asf_huge = false, present; /* apparently "huge" has some meaning in Windoze C */ len = mus_char_to_lint((unsigned char *)(hdrbuf + 16)); /* actually 64 bits */ i = (128+64) / 8; srate = 0; chans = 0; while (i < len) { seek_and_read(fd, (unsigned char *)hdrbuf, i, HDRBUFSIZ); if ((unsigned int)(hdrbuf[1]) == 0x29) switch (hdrbuf[0]) { case 0xd0: asf_huge = (hdrbuf[((128+64+128+64+64+64+64+32)/8)] & 2); break; case 0xd4: present = ((hdrbuf[16+8+16+8+8+ 4+4+4+4+ 4+4] >> 3) & 0x3); if (present) j = 16+8+16+8+8+ 4+4+4+4+ 4+4+ 4+ (4+4+4) + 2; else j = 16+8+16+8+8+ 4+4+4+4+ 4+4+ 4+ 2; srate = mus_char_to_lint((unsigned char *)(hdrbuf + j+11+36)); bits = mus_char_to_lint((unsigned char *)(hdrbuf + j+11+32)); chans = mus_char_to_ulshort((unsigned char *)(hdrbuf + j+65)); original_sample_type = mus_char_to_lint((unsigned char *)(hdrbuf + j+11)); break; default: break; } ilen = mus_char_to_lint((unsigned char *)(hdrbuf + 16)); if (ilen <= 0) break; if ((chans > 0) && (srate > 0)) break; i += ilen; } i = len; seek_and_read(fd, (unsigned char *)hdrbuf, i, HDRBUFSIZ); sample_type = MUS_UNKNOWN_SAMPLE; if (((unsigned int)(hdrbuf[1]) == 0x29) && ((unsigned int)(hdrbuf[0]) == 0xd2)) { int a_huge = 2; ilen = mus_char_to_lint((unsigned char *)(hdrbuf + 16)); if (asf_huge) a_huge = 4; data_location = i + 20 + a_huge + 2+4+3+1; if (bits == 0) bits = 8; sample_type = wave_to_sndlib_format(original_sample_type, bits, true); } else return(mus_error(MUS_HEADER_READ_FAILED, "%s: unknown sample type", filename)); data_size = ilen - data_location; true_file_length = SEEK_FILE_LENGTH(fd); if (data_size > true_file_length) { data_size = true_file_length - data_location; if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); } data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } /* ------------------------------------ Sox ------------------------------------- * sox now has its own format (intended as an intermediate file) * 0: .SoX or .XoS * 4: header_bytes (int) * 8: num_samples (long long int) * 16: srate (double) * 24: chans (int) * 28: comment bytes (int) * 32: comment... [if any] * header_bytes: data (always 32-bit int in native format) */ static int read_sox_header(const char *filename, int fd) { int comment_len; mus_long_t samps; if (match_four_chars((unsigned char *)(hdrbuf + 0), I_dSoX)) { sample_type = MUS_LINTN; samps = mus_char_to_llong((unsigned char *)(hdrbuf + 8)); srate = (int)mus_char_to_ldouble((unsigned char *)(hdrbuf + 16)); little_endian = true; } else { /* untested */ sample_type = MUS_BINTN; samps = mus_char_to_blong((unsigned char *)(hdrbuf + 8)); srate = (int)mus_char_to_bdouble((unsigned char *)(hdrbuf + 16)); little_endian = false; } data_location = 4 + big_or_little_endian_int((unsigned char *)(hdrbuf + 4), little_endian); chans = big_or_little_endian_int((unsigned char *)(hdrbuf + 24), little_endian); comment_len = big_or_little_endian_int((unsigned char *)(hdrbuf + 28), little_endian); if (comment_len > 0) { comment_start = 32; comment_end = comment_start + comment_len; } true_file_length = SEEK_FILE_LENGTH(fd); data_size = (true_file_length - data_location); if (data_size < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: data_size = %lld?", filename, data_size)); data_size = mus_bytes_to_samples(sample_type, data_size); if (samps < data_size) data_size = samps; return(MUS_NO_ERROR); } /* ------------------------------------ Matlab 5 ------------------------------------- */ /* info from the matlab site, Gary Scavone's site, and wotsit.org "Mat-File Format" in matlab.zip * * 128 byte header starting with "MATLAB 5.0 MAT-file" * 124: version (normally 0x100) * 126: endianess (the chars 'M' and 'I') * data chunked much like aiff -- 8 bytes: type | number-of-bytes, followed by data * 4 bytes type: 1: s8 2: u8 3: s16 4: u16 5: s32 6: u32 * 7: IEEE 754 single 9: IEEE 754 double 12: s64 13: u64 * 14: array (15 compressed?) * 4 bytes size: (not including the tag) * array types: 6: double 7:float * * I'll assume a sound file is stored as a matlab array * and each separate array is a channel (non-interleaved, so if chans>1 we have to pre-translate it). * */ static int read_matlab_5_header(const char *filename, int fd) { int i, type, loc, size; /* bool swapped = false; */ comment_start = 0; comment_end = 124; for (i = 1; i < 124; i++) if (hdrbuf[i] == 0) { comment_end = i; break; } /* if (mus_char_to_lshort((unsigned char *)(hdrbuf + 126)) == 0x494d) swapped = true; */ /* byte swapping not handled yet */ type = mus_char_to_lint((unsigned char *)(hdrbuf + 128)); if (type != 14) return(mus_error(MUS_HEADER_READ_FAILED, "%s: unknown Matlab sample type (%d)", filename, type)); /* chunksize = mus_char_to_lint((unsigned char *)(hdrbuf + 132)); */ /* now grovel through the array header */ /* assume the "flags" are not interesting */ /* assume "dimensions" = number of samples, but we'll pick that up from the data size */ /* do we care about the original variable name? */ /* should we try to handle multiple signals in a file? as separate channels? */ loc = 136 + 32 + 8; size = mus_char_to_lint((unsigned char *)(hdrbuf + 172)); /* var name len -- need to round up to multiple of 8 */ i = size % 8; if (i == 0) loc += size; else loc += size + 8 - i; type = mus_char_to_lint((unsigned char *)(hdrbuf + loc)); if (type == 9) sample_type = MUS_LDOUBLE; else sample_type = MUS_LFLOAT; data_size = mus_char_to_lint((unsigned char *)(hdrbuf + loc + 4)); chans = 1; srate = 44100; /* a plausible guess */ true_file_length = SEEK_FILE_LENGTH(fd); return(MUS_NO_ERROR); } /* ------------------------------------ no header ------------------------------------- */ static int raw_header_srate = 44100; static int raw_header_chans = 2; static mus_sample_t raw_header_sample_type = MUS_BSHORT; static int read_no_header(int fd) { srate = raw_header_srate; chans = raw_header_chans; sample_type = raw_header_sample_type; data_location = 0; data_size = SEEK_FILE_LENGTH(fd); true_file_length = data_size; data_size = mus_bytes_to_samples(sample_type, data_size); return(MUS_NO_ERROR); } void mus_header_set_raw_defaults(int sr, int chn, mus_sample_t samp_type) { if (sr > 0) raw_header_srate = sr; if (chn > 0) raw_header_chans = chn; if (mus_is_sample_type(samp_type)) raw_header_sample_type = samp_type; } void mus_header_raw_defaults(int *sr, int *chn, mus_sample_t *samp_type) { (*sr) = raw_header_srate; (*chn) = raw_header_chans; (*samp_type) = raw_header_sample_type; } /* ------------------------------------ all together now ------------------------------------ */ static int mus_header_read_1(const char *filename, int fd) { static const unsigned char I_HCOM[4] = {'H','C','O','M'}; static const unsigned char I_FSSD[4] = {'F','S','S','D'}; static const unsigned char I_8SVX[4] = {'8','S','V','X'}; static const unsigned char I_16SV[4] = {'1','6','S','V'}; static const unsigned char I_VOC1[4] = {'t','i','v','e'}; static const unsigned char I_Soun[4] = {'S','o','u','n'}; static const unsigned char I_MAUD[4] = {'M','A','U','D'}; static const unsigned char I_mdat[4] = {'m','d','a','t'}; /* quicktime */ static const unsigned char I_sfbk[4] = {'s','f','b','k'}; /* SoundFont 2.0 */ static const unsigned char I_ATCH[4] = {'A','T','C','H'}; static const unsigned char I_NAL_[4] = {'N','A','L','_'}; static const unsigned char I__WAV[4] = {' ','S','A','M'}; static const unsigned char I_ondW[4] = {'o','n','d','W'}; static const unsigned char I_SDXc[4] = {'S','D','X',':'}; /* Sample dump exchange format */ static const unsigned char I_AVI_[4] = {'A','V','I',' '}; /* RIFF AVI */ static const unsigned char I_ones[4] = {(unsigned char)'\377',(unsigned char)'\377',(unsigned char)'\377',(unsigned char)'\377'}; static const unsigned char I_zeros[4] = {'\0','\0','\0','\0'}; static const unsigned char I_asf0[4] = {(unsigned char)'\321','\051',(unsigned char)'\342',(unsigned char)'\326'}; static const unsigned char I_asf1[4] = {(unsigned char)'\332','\065',(unsigned char)'\321','\021'}; static const unsigned char I_asf2[4] = {(unsigned char)'\220','\064','\000',(unsigned char)'\240'}; static const unsigned char I_asf3[4] = {(unsigned char)'\311','\003','\111',(unsigned char)'\276'}; static const unsigned char I_DS16[4] = {'D','S','1','6'}; /* CSL */ static const unsigned char I__sam[4] = {'=','s','a','m'}; static const unsigned char I_OggS[4] = {'O','g','g','S'}; /* Ogg-related files, apparently -- ogg123 has "vorbis" instead of "Speex" */ static const unsigned char I_fLaC[4] = {'f','L','a','C'}; /* FLAC */ static const unsigned char I_TTA1[4] = {'T','T','A','1'}; /* ttaenc */ static const unsigned char I_wvpk[4] = {'w','v','p','k'}; /* wavpack */ static const unsigned char I_MATL[4] = {'M','A','T','L'}; /* matlab 5.0 */ static const unsigned char I_AB_5[4] = {'A','B',' ','5'}; #define NINRS 7 static const unsigned int I_INRS[NINRS] = {0xcb460020, 0xd0465555, 0xfa460000, 0x1c470040, 0x3b470080, 0x7a470000, 0x9c470040}; static int inrs_srates[NINRS] = {6500, 6667, 8000, 10000, 12000, 16000, 20000}; /* returns 0 on success (at least to the extent that we can report the header type), -1 for error */ int i, loc = 0; long long int bytes; header_type = MUS_UNKNOWN_HEADER; sample_type = MUS_UNKNOWN_SAMPLE; comment_start = 0; comment_end = 0; data_size = 0; data_location = 0; if (loop_modes) { loop_modes[0] = 0; loop_modes[1] = 0; } bytes = (long long int)read(fd, hdrbuf, INITIAL_READ_SIZE); /* if it's a 0 length file we need to get out */ if (bytes < 0) return(mus_error(MUS_HEADER_READ_FAILED, "%s: %s", filename, (errno) ? STRERROR(errno) : "bytes read < 0?")); if (bytes == 0) { header_type = MUS_RAW; srate = raw_header_srate; chans = raw_header_chans; sample_type = raw_header_sample_type; data_location = 0; true_file_length = 0; return(MUS_NO_ERROR); } if (bytes < 4) { header_type = MUS_RAW; return(read_no_header(fd)); } if ((match_four_chars((unsigned char *)hdrbuf, I_DSND)) || (match_four_chars((unsigned char *)hdrbuf, I_DECN))) { if (bytes < 24) return(mus_error(MUS_HEADER_READ_FAILED, "%s NeXT header truncated? found only %lld bytes", filename, bytes)); header_type = MUS_NEXT; return(read_next_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_FORM)) { /* next 4 bytes are apparently the file size or something equally useless */ if (bytes < 12) return(mus_error(MUS_HEADER_READ_FAILED, "%s AIFF header truncated? found only %lld bytes", filename, bytes)); if (match_four_chars((unsigned char *)(hdrbuf + 8), I_AIFF)) { header_type = MUS_AIFF; return(read_aiff_header(filename, fd, 0)); } if (match_four_chars((unsigned char *)(hdrbuf + 8), I_AIFC)) { header_type = MUS_AIFC; return(read_aiff_header(filename, fd, 0)); } if (match_four_chars((unsigned char *)(hdrbuf + 8), I_8SVX)) { header_type = MUS_SVX; return(read_8svx_header(filename, fd, true)); } if (match_four_chars((unsigned char *)(hdrbuf + 8), I_16SV)) { header_type = MUS_SVX; return(read_8svx_header(filename, fd, false)); } if (match_four_chars((unsigned char *)(hdrbuf + 8), I_MAUD)) { header_type = MUS_MAUD; return(read_maud_header(filename, fd)); } /* apparently SAMP here -> sampled audio data (?) */ if (match_four_chars((unsigned char *)(hdrbuf + 4), I_DS16)) { header_type = MUS_CSL; return(read_csl_header(filename, fd)); } return(mus_error(MUS_HEADER_READ_FAILED, "%s: unrecognized \"FORM\" (i.e. AIFF) header", filename)); } if ((match_four_chars((unsigned char *)hdrbuf, I_RIFF)) || (match_four_chars((unsigned char *)hdrbuf, I_RIFX))) { if (bytes < 12) return(mus_error(MUS_HEADER_READ_FAILED, "%s RIFF header truncated? found only %lld bytes", filename, bytes)); if (match_four_chars((unsigned char *)(hdrbuf + 8), I_WAVE)) { header_type = MUS_RIFF; return(read_riff_header(filename, fd)); } if (match_four_chars((unsigned char *)(hdrbuf + 8), I_sfbk)) { header_type = MUS_SOUNDFONT; return(read_soundfont_header(filename, fd)); } if (match_four_chars((unsigned char *)(hdrbuf + 8), I_AVI_)) { header_type = MUS_AVI; return(read_avi_header(filename, fd)); } return(mus_error(MUS_HEADER_READ_FAILED, "%s: unrecognized \"RIFF\" (i.e. 'wave') header", filename)); } if (match_four_chars((unsigned char *)hdrbuf, I_RF64)) { header_type = MUS_RF64; if (bytes < 28) return(mus_error(MUS_HEADER_READ_FAILED, "%s RF64 header truncated? found only %lld bytes", filename, bytes)); if ((mus_char_to_lint((unsigned char *)(hdrbuf + 4)) != -1) || (!(match_four_chars((unsigned char *)(hdrbuf + 8), I_WAVE)))) return(mus_error(MUS_HEADER_READ_FAILED, "%s: messed up RF64 header", filename)); return(read_rf64_header(filename, fd)); } if ((equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_VAX)) || (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_SUN)) || (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_MIPS)) || (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_NEXT))) { if (bytes < 24) return(mus_error(MUS_HEADER_READ_FAILED, "%s IRCAM header truncated? found only %lld bytes", filename, bytes)); header_type = MUS_IRCAM; return(read_ircam_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_NIST)) { header_type = MUS_NIST; return(read_nist_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_caff)) { if (bytes < 32) /* INITIAL_READ_SIZE */ return(mus_error(MUS_HEADER_READ_FAILED, "%s CAFF header truncated? found only %lld bytes", filename, bytes)); header_type = MUS_CAFF; return(read_caff_header(fd)); } if ((match_four_chars((unsigned char *)hdrbuf, I_MATL)) && (match_four_chars((unsigned char *)(hdrbuf + 4), I_AB_5))) { if (bytes < 128) /* INITIAL_READ_SIZE=256 */ return(mus_error(MUS_HEADER_READ_FAILED, "%s Matlab header truncated? found only %lld bytes", filename, bytes)); header_type = MUS_MATLAB; return(read_matlab_5_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_SOUN)) { static const unsigned char I_D_SA[4] = {'D',' ','S','A'}; static const unsigned char I_MPLE[4] = {'M','P','L','E'}; if ((match_four_chars((unsigned char *)(hdrbuf + 4), I_D_SA)) && (match_four_chars((unsigned char *)(hdrbuf + 8), I_MPLE))) { header_type = MUS_SMP; return(read_smp_header(filename, fd)); } else { header_type = MUS_SNDT; return(read_sndt_header(filename, fd)); } } if ((match_four_chars((unsigned char *)hdrbuf, I_dSoX)) || (match_four_chars((unsigned char *)hdrbuf, I_XoSd))) { header_type = MUS_SOX; return(read_sox_header(filename, fd)); } if ((match_four_chars((unsigned char *)hdrbuf, I_VOC0)) && (match_four_chars((unsigned char *)(hdrbuf + 4), I_VOC1))) { if (bytes < 24) return(mus_error(MUS_HEADER_READ_FAILED, "%s VOC header truncated? found only %lld bytes", filename, bytes)); header_type = MUS_VOC; return(read_voc_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_AVR_)) { header_type = MUS_AVR; return(read_avr_header(filename, fd)); } if (mus_char_to_bshort((unsigned char *)hdrbuf) == 1336) { header_type = MUS_SD1; return(read_sd1_header(filename, fd)); } if ((match_four_chars((unsigned char *)hdrbuf, I_ALaw)) && (match_four_chars((unsigned char *)(hdrbuf + 4), I_Soun))) { header_type = MUS_PSION; return(read_psion_header(filename, fd)); } if ((match_four_chars((unsigned char *)hdrbuf, I_GF1P)) && (match_four_chars((unsigned char *)(hdrbuf + 4), I_ATCH))) { header_type = MUS_GRAVIS; return(read_gravis_header(filename, fd)); } if ((match_four_chars((unsigned char *)hdrbuf, I_DSIG)) && (match_four_chars((unsigned char *)(hdrbuf + 4), I_NAL_))) { header_type = MUS_COMDISCO; return(read_comdisco_header(filename, fd)); } if ((match_four_chars((unsigned char *)hdrbuf, I_GOLD)) && (match_four_chars((unsigned char *)(hdrbuf + 4), I__WAV))) { header_type = MUS_GOLDWAVE; return(read_goldwave_header(filename, fd)); } if ((match_four_chars((unsigned char *)hdrbuf, I_Diam)) && (match_four_chars((unsigned char *)(hdrbuf + 4), I_ondW))) { header_type = MUS_DIAMONDWARE; return(read_diamondware_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_SRFS)) { header_type = MUS_SRFS; return(read_srfs_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_CSRE)) { header_type = MUS_ADF; return(read_adf_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_fLaC)) { header_type = MUS_FLAC; return(MUS_NO_ERROR); } if (match_four_chars((unsigned char *)hdrbuf, I_ajkg)) { header_type = MUS_SHORTEN; return(MUS_NO_ERROR); } if (match_four_chars((unsigned char *)hdrbuf, I_TTA1)) { header_type = MUS_TTA; return(MUS_NO_ERROR); } if (match_four_chars((unsigned char *)hdrbuf, I_wvpk)) { header_type = MUS_WAVPACK; return(MUS_NO_ERROR); } if (match_four_chars((unsigned char *)hdrbuf, I_OggS)) { if ((hdrbuf[29] == 'v') && (hdrbuf[30] == 'o') && (hdrbuf[31] == 'r')) header_type = MUS_OGG; else { if ((hdrbuf[28] == 'S') && (hdrbuf[29] == 'p') && (hdrbuf[30] == 'e')) header_type = MUS_SPEEX; } return(MUS_NO_ERROR); } if ((match_four_chars((unsigned char *)hdrbuf, I_file)) && (match_four_chars((unsigned char *)(hdrbuf + 4), I__sam))) { header_type = MUS_FILE_SAMP; return(read_file_samp_header(filename, fd)); } if ((hdrbuf[0] == 0xf0) && (hdrbuf[1] == 0x7e) && (hdrbuf[3] == 0x01)) { header_type = MUS_MIDI_SAMPLE_DUMP; chans = 1; srate = (int)(1.0e9 / (float)((hdrbuf[7] + (hdrbuf[8] << 7) + (hdrbuf[9] << 14)))); data_size = (hdrbuf[10] + (hdrbuf[11] << 7) + (hdrbuf[12] << 14)); /* since this file type has embedded blocks, we have to translate it elsewhere */ return(MUS_NO_ERROR); } if (mus_char_to_ubint((unsigned char *)hdrbuf) == 0xAAAAAAAA) { header_type = MUS_MUS10; return(MUS_NO_ERROR); } if ((match_four_chars((unsigned char *)hdrbuf, I_SPIB)) || (match_four_chars((unsigned char *)hdrbuf, I_S___))) { header_type = MUS_IEEE; return(MUS_NO_ERROR); } if (match_four_chars((unsigned char *)hdrbuf, I_riff)) { header_type = MUS_SOUNDFORGE; return(read_soundforge_header(filename, fd)); } if ((match_four_chars((unsigned char *)hdrbuf, I_PVF1)) || (match_four_chars((unsigned char *)hdrbuf, I_PVF2))) { header_type = MUS_PVF; return(read_pvf_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_MThd)) { header_type = MUS_MIDI; return(MUS_ERROR); } if (match_four_chars((unsigned char *)hdrbuf, I_SND_)) { header_type = MUS_SBSTUDIOII; return(read_sbstudio_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_FSMt)) { header_type = MUS_FARANDOLE; return(read_farandole_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_SDXc)) { header_type = MUS_SAMPLE_DUMP; return(read_sample_dump_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_DDSF)) { header_type = MUS_DELUSION; return(read_delusion_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_LM89)) { header_type = MUS_YAMAHA_TX16W; return(read_tx16w_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_SY85)) { header_type = MUS_YAMAHA_SY85; return(read_sy85_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_SY80)) { header_type = MUS_YAMAHA_SY99; return(read_sy85_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_PRAM)) { header_type = MUS_KURZWEIL_2000; return(read_kurzweil_2000_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_SMP1)) { header_type = MUS_KORG; return(read_korg_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_Maui)) { header_type = MUS_MAUI; return(read_maui_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_IMPS)) { header_type = MUS_IMPULSETRACKER; return(read_impulsetracker_header(filename, fd)); } if (match_four_chars((unsigned char *)(hdrbuf + 35), I_UWFD)) { header_type = MUS_ULTRATRACKER; return(read_ultratracker_header(filename, fd)); } if (match_four_chars((unsigned char *)(hdrbuf + 76), I_SCRS)) { header_type = MUS_DIGIPLAYER; return(read_digiplayer_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_covox)) { header_type = MUS_COVOX; return(read_covox_header(filename, fd)); } if ((match_four_chars((unsigned char *)hdrbuf, I__PAF)) || (match_four_chars((unsigned char *)hdrbuf, I_FAP_))) { header_type = MUS_PAF; return(read_paf_header(filename, fd)); } if (match_four_chars((unsigned char *)hdrbuf, I_SDIF)) { header_type = MUS_SDIF; return(read_sdif_header(filename, fd)); } #if G7XX if (match_four_chars((unsigned char *)hdrbuf, I_NVF_)) { header_type = MUS_NVF; return(read_nvf_header(filename, fd)); } #endif if (match_four_chars((unsigned char *)hdrbuf, I_TWIN)) { header_type = MUS_TWINVQ; return(read_twinvq_header(filename, fd)); } /* ESPS is either 0x00006a1a or 0x1a6a0000 at byte 16 */ if (equal_big_or_little_endian((unsigned char *)(hdrbuf + 16), 0x00006a1a)) { header_type = MUS_ESPS; return(read_esps_header(filename, fd)); } if ((hdrbuf[252] == 64) && (hdrbuf[253] == 195)) /* #o100 and #o303 */ { header_type = MUS_SPPACK; return(read_sppack_header(filename, fd)); } if ((match_four_chars((unsigned char *)(hdrbuf + 65), I_FSSD)) && (match_four_chars((unsigned char *)(hdrbuf + 128), I_HCOM))) { header_type = MUS_HCOM; return(MUS_NO_ERROR); } #if MUS_LITTLE_ENDIAN if (mus_char_to_uninterpreted_int((unsigned char *)hdrbuf) == 0x01000800) #else if (mus_char_to_uninterpreted_int((unsigned char *)hdrbuf) == 0x00080001) #endif { header_type = MUS_ADC; return(read_adc_header(filename, fd)); } if ((match_four_chars((unsigned char *)hdrbuf, I_ones)) && (match_four_chars((unsigned char *)(hdrbuf + 12), I_FORM))) { /* possibly an OMF file with an embedded AIFF data file -- this is just a guess... */ header_type = MUS_OMF; return(read_aiff_header(filename, fd, 12)); /* another (apparently) along these lines is TOC */ } if ((match_four_chars((unsigned char *)hdrbuf, I_zeros)) && (match_four_chars((unsigned char *)(hdrbuf + 4), I_mdat))) { /* possibly quicktime?? */ header_type = MUS_QUICKTIME; return(read_qt_header(filename, fd)); } if ((hdrbuf[0] == 1) && (hdrbuf[1] == 4)) /* name follows --check? */ { header_type = MUS_AKAI4; return(read_akai4_header(filename, fd)); } #if 0 if ((hdrbuf[0] == 3) && (hdrbuf[16] == 128)) { header_type = MUS_AKAI4; return(read_akai3_header(filename, fd)); } #endif for (i = 0; i < NINRS; i++) { if (equal_big_or_little_endian((unsigned char *)hdrbuf, I_INRS[i])) { loc = inrs_srates[i]; header_type = MUS_INRS; return(read_inrs_header(filename, fd, loc)); } } if ((match_four_chars((unsigned char *)hdrbuf, I_asf0)) && (match_four_chars((unsigned char *)(hdrbuf + 4), I_asf1)) && (match_four_chars((unsigned char *)(hdrbuf + 8), I_asf2)) && (match_four_chars((unsigned char *)(hdrbuf + 12), I_asf3))) { header_type = MUS_ASF; return(read_asf_header(filename, fd)); } /* SMS files start with 767 (4-byte int, apparently in native order) */ /* try to catch mpeg... */ { int len; len = strlen(filename); if (len > 4) { if (strcmp((const char *)(filename + len - 4), ".mp3") == 0) { header_type = MUS_MPEG; return(MUS_NO_ERROR); } } } header_type = MUS_RAW; return(read_no_header(fd)); } static int local_error_type = MUS_NO_ERROR; static char *local_error_msg = NULL; static mus_error_handler_t *old_error_handler; static void local_mus_error(int type, char *msg) { local_error_type = type; if (local_error_msg) free(local_error_msg); if (msg) local_error_msg = mus_strdup(msg); else local_error_msg = NULL; } int mus_header_read(const char *name) { int fd, err = 0; fd = mus_file_open_read(name); if (fd == -1) return(mus_error(MUS_CANT_OPEN_FILE, "can't open %s: %s", name, STRERROR(errno))); old_error_handler = mus_error_set_handler(local_mus_error); err = mus_header_read_1(name, fd); CLOSE(fd, name); mus_error_set_handler(old_error_handler); if (err != MUS_NO_ERROR) return(mus_error(local_error_type, "%s", local_error_msg)); /* pass error info on up the chain now that we've cleaned up the open file descriptor */ return(err); } static mus_header_write_hook_t *mus_header_write_hook = NULL; mus_header_write_hook_t *mus_header_write_set_hook(mus_header_write_hook_t *new_hook) { mus_header_write_hook_t *old_hook; old_hook = mus_header_write_hook; mus_header_write_hook = new_hook; return(old_hook); } int mus_header_write(const char *name, mus_header_t type, int in_srate, int in_chans, mus_long_t loc, mus_long_t size_in_samples, mus_sample_t samp_type, const char *comment, int len) { /* the "loc" arg is a mistake -- just always set it to 0 */ int fd, err = MUS_NO_ERROR; mus_long_t siz; fd = mus_file_create(name); if (fd == -1) return(mus_error(MUS_CANT_OPEN_FILE, "can't write %s: %s", name, STRERROR(errno))); if (mus_header_write_hook) (*mus_header_write_hook)(name); siz = mus_samples_to_bytes(samp_type, size_in_samples); switch (type) { case MUS_RAW: case MUS_IRCAM: case MUS_NEXT: case MUS_RIFF: case MUS_RF64: case MUS_CAFF: break; default: if (siz > BIGGEST_4_BYTE_SIGNED_INT) { err = MUS_BAD_SIZE; siz = BIGGEST_4_BYTE_SIGNED_INT; } break; } switch (type) { case MUS_NEXT: err = mus_header_write_next_header(fd, in_srate, in_chans, loc, siz, samp_type, comment, len); break; case MUS_AIFC: err = write_aif_header(fd, in_srate, in_chans, siz, samp_type, comment, len, true); break; case MUS_AIFF: err = write_aif_header(fd, in_srate, in_chans, siz, samp_type, comment, len, false); break; case MUS_RF64: err = write_rf64_header(fd, in_srate, in_chans, siz, samp_type, comment, len); break; case MUS_CAFF: err = write_caff_header(fd, in_srate, in_chans, siz, samp_type); break; case MUS_IRCAM: err = write_ircam_header(fd, in_srate, in_chans, samp_type, comment, len); break; case MUS_NIST: err = write_nist_header(fd, in_srate, in_chans, siz, samp_type); break; case MUS_RIFF: err = write_riff_header(fd, in_srate, in_chans, siz, samp_type, comment, len); if (err != MUS_NO_ERROR) { CLOSE(fd, name); return(mus_error(err, "can't write %s header for %s (fd: %d, sample type: %s, srate: %d, chans: %d)", mus_header_type_name(type), name, fd, mus_sample_type_short_name(samp_type), in_srate, in_chans)); } break; case MUS_RAW: data_location = 0; data_size = mus_bytes_to_samples(samp_type, siz); srate = in_srate; chans = in_chans; header_type = MUS_RAW; sample_type = samp_type; break; default: CLOSE(fd, name); return(mus_error(MUS_UNSUPPORTED_HEADER_TYPE, "can't write %s header for %s", mus_header_type_name(type), name)); break; } CLOSE(fd, name); return(err); } int mus_write_header(const char *name, mus_header_t type, int in_srate, int in_chans, mus_long_t size_in_samples, mus_sample_t samp_type, const char *comment) { int len = 0; if (comment) len = strlen(comment); return(mus_header_write(name, type, in_srate, in_chans, 0, size_in_samples, samp_type, comment, len)); } int mus_header_change_data_size(const char *filename, mus_header_t type, mus_long_t size) /* in bytes */ { /* the read header at sample update (sound-close) time could be avoided if the * ssnd_location (etc) were saved and passed in -- perhaps an added optimized * header change data size? Means saving the relevant data, and exporting it * from headers.c. Can we guarantee consistency here? */ int fd, err = MUS_NO_ERROR; switch (type) { case MUS_AIFF: case MUS_AIFC: case MUS_NIST: case MUS_RIFF: case MUS_RF64: err = mus_header_read(filename); break; default: break; } if (err == MUS_ERROR) return(err); fd = mus_file_reopen_write(filename); if (fd == -1) return(mus_error(MUS_HEADER_WRITE_FAILED, "%s: %s", filename, STRERROR(errno))); if (size < 0) { CLOSE(fd, filename); return(mus_error(MUS_BAD_SIZE, "%s: change size to %lld?", filename, size)); } switch (type) { case MUS_NEXT: if (size > (mus_long_t)(BIGGEST_4_BYTE_UNSIGNED_INT)) { err = MUS_BAD_SIZE; size = BIGGEST_4_BYTE_UNSIGNED_INT; } lseek(fd, 8L, SEEK_SET); mus_bint_to_char((unsigned char *)(hdrbuf + 0), (unsigned int)size); header_write(fd, hdrbuf, 4); break; case MUS_AIFC: case MUS_AIFF: /* we apparently have to make sure the form size and the data size are correct * assumed here that we'll only be updating our own AIFF files * There are 3 such locations -- the second word of the file which is the overall form size, * the framples variable in the COMM chunk, and the chunk-size variable in the SSND chunk * an unexpected hassle for CLM is that we can open/close the output file many times if running mix, * so we have to update the various size fields taking into account the old size */ /* read sets current update_form_size, data_size, sample_type, update_framples_location, update_ssnd_location */ if (size > BIGGEST_4_BYTE_SIGNED_INT) { err = MUS_BAD_SIZE; mus_print("%s size: %lld is too large for %s headers", filename, size, mus_header_type_name(type)); size = BIGGEST_4_BYTE_SIGNED_INT; } lseek(fd, 4L, SEEK_SET); mus_bint_to_char((unsigned char *)hdrbuf, (int)size + update_form_size - mus_samples_to_bytes(sample_type, data_size)); /* cancel old data_size from previous possible write */ header_write(fd, hdrbuf, 4); lseek(fd, update_framples_location, SEEK_SET); mus_bint_to_char((unsigned char *)hdrbuf, (int)size / (chans * mus_bytes_per_sample(sample_type))); header_write(fd, hdrbuf, 4); lseek(fd, update_ssnd_location, SEEK_SET); mus_bint_to_char((unsigned char *)hdrbuf, (int)size + 8); header_write(fd, hdrbuf, 4); break; case MUS_RIFF: /* read sets current update_form_size, sample_type, data_size, update_ssnd_location */ if (size > BIGGEST_4_BYTE_SIGNED_INT) { CLOSE(fd, filename); return(mus_header_convert_riff_to_rf64(filename, size)); } lseek(fd, 4L, SEEK_SET); mus_lint_to_char((unsigned char *)hdrbuf, (int)size + update_form_size - mus_samples_to_bytes(sample_type, data_size)); header_write(fd, hdrbuf, 4); lseek(fd, update_ssnd_location, SEEK_SET); mus_lint_to_char((unsigned char *)hdrbuf, (int)size); header_write(fd, hdrbuf, 4); break; case MUS_RF64: /* read sets current update_form_size, sample_type, data_size, update_ssnd_location, update_rf64_location */ /* assume here that this really is an rf64 file (i.e. -1 for form size and data chunk size */ lseek(fd, update_rf64_location, SEEK_SET); mus_llong_to_char((unsigned char *)hdrbuf, data_location + size - 8); /* 25-June-07 */ mus_llong_to_char((unsigned char *)(hdrbuf + 8), size); mus_llong_to_char((unsigned char *)(hdrbuf + 16), size); header_write(fd, hdrbuf, 24); break; case MUS_IRCAM: case MUS_RAW: /* size is implicit in file size */ break; case MUS_NIST: /* read sets current srate, chans, sample_type */ if (size > BIGGEST_4_BYTE_SIGNED_INT) { err = MUS_BAD_SIZE; mus_print("%s size: %lld is too large for %s headers", filename, size, mus_header_type_name(type)); size = BIGGEST_4_BYTE_SIGNED_INT; } lseek(fd, 0L, SEEK_SET); write_nist_header(fd, mus_header_srate(), mus_header_chans(), size, mus_header_sample_type()); break; case MUS_CAFF: if (update_framples_location < 56) update_framples_location = 56; lseek(fd, update_framples_location, SEEK_SET); mus_blong_to_char((unsigned char *)(hdrbuf + 0), size); header_write(fd, hdrbuf, 8); break; default: CLOSE(fd, filename); return(mus_error(MUS_UNSUPPORTED_HEADER_TYPE, "mus_header_change_data_size: can't update %s headers", mus_header_type_name(type))); break; } CLOSE(fd, filename); return(err); } int mus_header_change_chans(const char *filename, mus_header_t type, int new_chans) { int err = MUS_NO_ERROR, fd; mus_long_t new_framples; switch (type) { case MUS_AIFF: case MUS_AIFC: case MUS_NIST: case MUS_RIFF: case MUS_RF64: err = mus_header_read(filename); break; default: break; } if (err == MUS_ERROR) return(err); fd = mus_file_reopen_write(filename); if (fd == -1) return(mus_error(MUS_CANT_OPEN_FILE, "mus_header_change_chans for %s failed: %s", filename, STRERROR(errno))); switch (type) { case MUS_NEXT: lseek(fd, 20L, SEEK_SET); mus_bint_to_char((unsigned char *)hdrbuf, new_chans); header_write(fd, hdrbuf, 4); break; case MUS_IRCAM: lseek(fd, 8L, SEEK_SET); if (little_endian) mus_lint_to_char((unsigned char *)hdrbuf, new_chans); else mus_bint_to_char((unsigned char *)hdrbuf, new_chans); header_write(fd, hdrbuf, 4); break; case MUS_NIST: lseek(fd, 0L, SEEK_SET); write_nist_header(fd, srate, new_chans, mus_bytes_per_sample(sample_type) * data_size, sample_type); /* header size is always 1024, so this is safe */ break; case MUS_AIFF: case MUS_AIFC: lseek(fd, update_framples_location - 2, SEEK_SET); new_framples = data_size / new_chans; mus_bshort_to_char((unsigned char *)hdrbuf, new_chans); mus_bint_to_char((unsigned char *)(hdrbuf + 2), new_framples); header_write(fd, hdrbuf, 6); break; case MUS_RIFF: case MUS_RF64: lseek(fd, update_framples_location - 2, SEEK_SET); if (little_endian) mus_lshort_to_char((unsigned char *)hdrbuf, new_chans); else mus_bshort_to_char((unsigned char *)hdrbuf, new_chans); header_write(fd, hdrbuf, 2); break; case MUS_CAFF: lseek(fd, 44L, SEEK_SET); mus_bint_to_char((unsigned char *)hdrbuf, new_chans); header_write(fd, hdrbuf, 4); /* we should probably also change bytes_per_packet at 36, but... */ break; default: break; } CLOSE(fd, filename); return(err); } int mus_header_change_srate(const char *filename, mus_header_t type, int new_srate) { int err = MUS_NO_ERROR, fd; switch (type) { case MUS_AIFF: case MUS_AIFC: case MUS_NIST: case MUS_RIFF: case MUS_RF64: err = mus_header_read(filename); break; default: break; } if (err == MUS_ERROR) return(err); fd = mus_file_reopen_write(filename); if (fd == -1) return(mus_error(MUS_CANT_OPEN_FILE, "mus_header_change_srate for %s failed: %s", filename, STRERROR(errno))); switch (type) { case MUS_NEXT: lseek(fd, 16L, SEEK_SET); mus_bint_to_char((unsigned char *)hdrbuf, new_srate); header_write(fd, hdrbuf, 4); break; case MUS_IRCAM: lseek(fd, 4L, SEEK_SET); if (little_endian) mus_lfloat_to_char((unsigned char *)hdrbuf, (float)new_srate); else mus_bfloat_to_char((unsigned char *)hdrbuf, (float)new_srate); header_write(fd, hdrbuf, 4); break; case MUS_NIST: lseek(fd, 0L, SEEK_SET); write_nist_header(fd, new_srate, chans, mus_bytes_per_sample(sample_type) * data_size, sample_type); break; case MUS_AIFF: case MUS_AIFC: lseek(fd, update_framples_location + 6, SEEK_SET); double_to_ieee_80((double)new_srate, (unsigned char *)hdrbuf); header_write(fd, hdrbuf, 10); break; case MUS_RIFF: case MUS_RF64: lseek(fd, update_framples_location, SEEK_SET); if (little_endian) mus_lint_to_char((unsigned char *)hdrbuf, new_srate); else mus_bint_to_char((unsigned char *)hdrbuf, new_srate); header_write(fd, hdrbuf, 4); break; case MUS_CAFF: lseek(fd, 20, SEEK_SET); mus_bdouble_to_char((unsigned char *)hdrbuf, (double)new_srate); header_write(fd, hdrbuf, 8); break; default: break; } CLOSE(fd, filename); return(err); } int mus_header_change_type(const char *filename, mus_header_t new_type, mus_sample_t new_format) { int err; /* open temp, write header, copy data, replace original with temp */ err = mus_header_read(filename); if (err == MUS_NO_ERROR) { if (header_type != new_type) { int ofd, ifd, len; long long int nbytes; mus_long_t loc; unsigned char *buf = NULL; char *new_file, *comment = NULL; if ((header_type == MUS_RIFF) && (new_type == MUS_RF64)) return(mus_header_convert_riff_to_rf64(filename, data_size)); len = strlen(filename) + 5; new_file = (char *)malloc(len * sizeof(char)); snprintf(new_file, len, "%s.tmp", filename); loc = mus_header_data_location(); if (new_type != MUS_RAW) { if (comment_end > comment_start) { mus_long_t clen; clen = comment_end - comment_start + 1; comment = (char *)calloc(clen + 1, sizeof(char)); ifd = mus_file_open_read(filename); lseek(ifd, comment_start, SEEK_SET); header_read(ifd, (unsigned char *)comment, clen); CLOSE(ifd, filename); } data_size = data_size * mus_bytes_per_sample(sample_type) / mus_bytes_per_sample(new_format); mus_write_header(new_file, new_type, srate, chans, data_size, new_format, comment); } else mus_file_create(new_file); ifd = mus_file_open_read(filename); lseek(ifd, loc, SEEK_SET); ofd = mus_file_reopen_write(new_file); lseek(ofd, 0L, SEEK_END); buf = (unsigned char *)calloc(8192, sizeof(unsigned char)); while ((nbytes = read(ifd, buf, 8192))) header_write(ofd, buf, (int)nbytes); CLOSE(ifd, filename); CLOSE(ofd, new_file); free(buf); if (comment) free(comment); rename(new_file, filename); free(new_file); } } return(err); } int mus_header_change_sample_type(const char *filename, mus_header_t type, mus_sample_t new_format) { int err = MUS_NO_ERROR, fd, fr; mus_long_t old_bytes; switch (type) { case MUS_AIFF: case MUS_AIFC: case MUS_NIST: case MUS_RIFF: case MUS_RF64: err = mus_header_read(filename); break; default: break; } if (err == MUS_ERROR) return(err); fd = mus_file_reopen_write(filename); if (fd == -1) return(mus_error(MUS_CANT_OPEN_FILE, "mus_header_change_sample_type for %s failed: %s", filename, STRERROR(errno))); switch (type) { case MUS_NEXT: lseek(fd, 12L, SEEK_SET); mus_bint_to_char((unsigned char *)hdrbuf, sndlib_format_to_next(new_format)); header_write(fd, hdrbuf, 4); break; case MUS_IRCAM: lseek(fd, 12L, SEEK_SET); mus_bint_to_char((unsigned char *)hdrbuf, sndlib_format_to_ircam(new_format)); header_write(fd, hdrbuf, 4); break; case MUS_NIST: lseek(fd, 0L, SEEK_SET); write_nist_header(fd, srate, chans, mus_bytes_per_sample(sample_type) * data_size, new_format); break; case MUS_AIFF: case MUS_AIFC: old_bytes = data_size * mus_bytes_per_sample(sample_type); lseek(fd, update_framples_location, SEEK_SET); mus_bint_to_char((unsigned char *)hdrbuf, old_bytes / (chans * mus_bytes_per_sample(new_format))); mus_bshort_to_char((unsigned char *)(hdrbuf + 4), sndlib_format_to_aiff_bits(new_format)); header_write(fd, hdrbuf, 6); if (header_type == MUS_AIFC) { const char *str; str = sndlib_format_to_aifc_name(new_format); lseek(fd, update_framples_location + 16, SEEK_SET); write_four_chars((unsigned char *)(hdrbuf + 0), (const unsigned char *)str); (*(unsigned char *)(hdrbuf + 4)) = 4; /* final pad null not accounted-for */ write_four_chars((unsigned char *)(hdrbuf + 5), (const unsigned char *)str); (*(unsigned char *)(hdrbuf + 9)) = 0; header_write(fd, hdrbuf, 10); } break; case MUS_RIFF: case MUS_RF64: lseek(fd, update_framples_location + 24, SEEK_SET); if (little_endian) mus_lshort_to_char((unsigned char *)hdrbuf, sndlib_format_to_aiff_bits(new_format)); else mus_bshort_to_char((unsigned char *)hdrbuf, sndlib_format_to_aiff_bits(new_format)); header_write(fd, hdrbuf, 2); lseek(fd, update_framples_location + 10, SEEK_SET); switch (new_format) { case MUS_MULAW: fr = 7; break; case MUS_ALAW: fr = 6; break; case MUS_UBYTE: case MUS_LSHORT: case MUS_L24INT: case MUS_LINT: case MUS_BSHORT: case MUS_B24INT: case MUS_BINT: fr = 1; break; case MUS_LFLOAT: case MUS_LDOUBLE: case MUS_BFLOAT: case MUS_BDOUBLE: fr = 3; break; default: fr = 0; break; } if (little_endian) mus_lshort_to_char((unsigned char *)hdrbuf, fr); else mus_bshort_to_char((unsigned char *)hdrbuf, fr); header_write(fd, hdrbuf, 2); break; default: break; } CLOSE(fd, filename); return(err); } int mus_header_change_location(const char *filename, mus_header_t type, mus_long_t new_location) { /* only Next/Sun changeable in this regard */ int err = MUS_NO_ERROR, fd; fd = mus_file_reopen_write(filename); if (fd == -1) return(mus_error(MUS_CANT_OPEN_FILE, "mus_header_change_location for %s failed: %s", filename, STRERROR(errno))); if (type == MUS_NEXT) { lseek(fd, 4L, SEEK_SET); mus_bint_to_char((unsigned char *)hdrbuf, new_location); header_write(fd, hdrbuf, 4); } CLOSE(fd, filename); return(err); } int mus_header_change_comment(const char *filename, mus_header_t type, const char *new_comment) { int err; err = mus_header_read(filename); if (err == MUS_NO_ERROR) { int fd; bool need_ripple = false; switch (type) { case MUS_IRCAM: { int len = 0; fd = mus_file_reopen_write(filename); lseek(fd, 16L, SEEK_SET); if (new_comment) len = strlen(new_comment); write_ircam_comment(fd, new_comment, len); CLOSE(fd, filename); } break; case MUS_NEXT: fd = mus_file_reopen_write(filename); lseek(fd, 24L, SEEK_SET); if (new_comment == NULL) write_next_comment(fd, new_comment, 0, data_location); /* erase old possibly */ else { if ((comment_start != comment_end) && ((int)(data_location - 24) >= (int)strlen(new_comment))) write_next_comment(fd, new_comment, strlen(new_comment), data_location); /* there's room to overwrite old comment */ else need_ripple = true; } CLOSE(fd, filename); break; default: need_ripple = true; break; } if (need_ripple) { /* open temp, write header, copy data, replace original with temp */ char *new_file; int ofd, ifd, len; mus_long_t loc; long long int nbytes; unsigned char *buf = NULL; len = strlen(filename) + 5; new_file = (char *)malloc(len * sizeof(char)); snprintf(new_file, len, "%s.tmp", filename); loc = mus_header_data_location(); mus_write_header(new_file, header_type, srate, chans, data_size, sample_type, new_comment); ifd = mus_file_open_read(filename); lseek(ifd, loc, SEEK_SET); ofd = mus_file_reopen_write(new_file); lseek(ofd, 0L, SEEK_END); buf = (unsigned char *)calloc(8192, sizeof(unsigned char)); while ((nbytes = read(ifd, buf, 8192))) header_write(ofd, buf, (int)nbytes); CLOSE(ifd, filename); CLOSE(ofd, new_file); free(buf); rename(new_file, filename); free(new_file); } } return(err); } bool mus_header_writable(mus_header_t type, mus_sample_t samp_type) /* MUS_IGNORE_SAMPLE to ignore sample type for this call */ { switch (type) { case MUS_NEXT: if (samp_type == MUS_UNKNOWN_SAMPLE) return(false); return(true); break; case MUS_NIST: if (samp_type == MUS_IGNORE_SAMPLE) return(true); switch (samp_type) { case MUS_BYTE: case MUS_BSHORT: case MUS_B24INT: case MUS_BINT: case MUS_LSHORT: case MUS_L24INT: case MUS_LINT: return(true); break; default: return(false); break; } break; case MUS_AIFC: if (samp_type == MUS_IGNORE_SAMPLE) return(true); switch (samp_type) { case MUS_BSHORT: case MUS_B24INT: case MUS_BINT: case MUS_BYTE: case MUS_MULAW: case MUS_ALAW: case MUS_BFLOAT: case MUS_BDOUBLE: case MUS_UBYTE: case MUS_UBSHORT: case MUS_LSHORT: case MUS_L24INT: case MUS_LINT: return(true); break; default: return(false); break; } break; case MUS_AIFF: if (samp_type == MUS_IGNORE_SAMPLE) return(true); switch (samp_type) { case MUS_BSHORT: case MUS_B24INT: case MUS_BINT: case MUS_BYTE: return(true); break; default: return(false); break; } break; case MUS_RIFF: case MUS_RF64: if (samp_type == MUS_IGNORE_SAMPLE) return(true); switch (samp_type) { case MUS_MULAW: case MUS_ALAW: case MUS_UBYTE: case MUS_LFLOAT: case MUS_LSHORT: case MUS_L24INT: case MUS_LINT: case MUS_LDOUBLE: return(true); break; default: return(false); break; } break; case MUS_IRCAM: if (samp_type == MUS_IGNORE_SAMPLE) return(true); switch (samp_type) { case MUS_MULAW: case MUS_ALAW: case MUS_BSHORT: case MUS_BINT: case MUS_BFLOAT: return(true); break; default: return(false); break; } break; case MUS_CAFF: if (samp_type == MUS_IGNORE_SAMPLE) return(true); switch (samp_type) { case MUS_MULAW: case MUS_ALAW: case MUS_BYTE: case MUS_LFLOAT: case MUS_LSHORT: case MUS_L24INT: case MUS_LINTN: case MUS_LDOUBLE: case MUS_BFLOAT: case MUS_BSHORT: case MUS_B24INT: case MUS_BINTN: case MUS_BDOUBLE: return(true); break; default: return(false); break; } break; case MUS_RAW: return(true); break; default: return(false); break; } return(false); } static char aifc_format[5]; /* try to give some info on sample types that aren't supported by sndlib */ const char *mus_header_original_sample_type_name(int samp_type, mus_header_t type) { switch (type) { case MUS_NEXT: switch (samp_type) { case 0: return("unspecified"); break; case 8: return("indirect"); break; case 9: return("nested"); break; case 10: return("dsp_core"); break; case 11: return("dsp_data_8"); break; case 12: return("dsp_data_16"); break; case 13: return("dsp_data_24"); break; case 14: return("dsp_data_32"); break; case 16: return("display"); break; case 17: return("mulaw_squelch"); break; case 18: return("emphasized"); break; case 19: return("compressed"); break; case 20: return("compressed_emphasized"); break; case 21: return("dsp_commands"); break; case 22: return("dsp_commands_samples"); break; case 23: return("adpcm_g721"); break; case 24: return("adpcm_g722"); break; case 25: return("adpcm_g723"); break; case 26: return("adpcm_g723_5"); break; case 28: return("aes"); break; case 29: return("delat_mulaw_8"); break; } break; case MUS_AIFC: case MUS_CAFF: aifc_format[4] = 0; #if MUS_LITTLE_ENDIAN snprintf(aifc_format, 5, "%c%c%c%c", samp_type & 0xff, (samp_type >> 8) & 0xff, (samp_type >> 16) & 0xff, (samp_type >> 24) & 0xff); #else snprintf(aifc_format, 5, "%c%c%c%c", (samp_type >> 24) & 0xff, (samp_type >> 16) & 0xff, (samp_type >> 8) & 0xff, samp_type & 0xff); #endif return(aifc_format); break; case MUS_PVF: if (type_specifier == mus_char_to_uninterpreted_int((unsigned const char *)I_PVF2)) return("ascii text"); break; case MUS_RIFF: case MUS_RF64: switch (samp_type) { case 2: return("ADPCM"); break; case 4: return("VSELP"); break; case 5: return("IBM_CVSD"); break; case 0x10: return("OKI_ADPCM"); break; case 0x11: return("DVI_ADPCM"); break; case 0x12: return("MediaSpace_ADPCM"); break; case 0x13: return("Sierra_ADPCM"); break; case 0x14: return("G723_ADPCM"); break; case 0x15: return("DIGISTD"); break; case 0x16: return("DIGIFIX"); break; case 0x17: return("Dialogic ADPCM"); break; case 0x18: return("Mediavision ADPCM"); break; case 0x19: return("HP cu codec"); break; case 0x20: return("Yamaha_ADPCM"); break; case 0x21: return("SONARC"); break; case 0x22: return("DSPGroup_TrueSpeech"); break; case 0x23: return("EchoSC1"); break; case 0x24: return("AudioFile_AF36"); break; case 0x25: return("APTX"); break; case 0x26: return("AudioFile_AF10"); break; case 0x27: return("prosody 1612"); break; case 0x28: return("lrc"); break; case 0x30: return("Dolby_Ac2"); break; case 0x31: return("GSM610"); break; case 0x32: return("MSN audio codec"); break; case 0x33: return("Antext_ADPCM"); break; case 0x34: return("Control_res_vqlpc"); break; case 0x35: return("DIGIREAL"); break; case 0x36: return("DIGIADPCM"); break; case 0x37: return("Control_res_cr10"); break; case 0x38: return("NMS_VBXADPCM"); break; case 0x39: return("oland rdac"); break; case 0x3a: return("echo sc3"); break; case 0x3b: return("Rockwell adpcm"); break; case 0x3c: return("Rockwell digitalk codec"); break; case 0x3d: return("Xebec"); break; case 0x40: return("G721_ADPCM"); break; case 0x41: return("G728 CELP"); break; case 0x42: return("MS G723"); break; case 0x50: return("MPEG"); break; case 0x52: return("RT24"); break; case 0x53: return("PAC"); break; case 0x55: return("Mpeg layer 3"); break; case 0x59: return("Lucent G723"); break; case 0x60: return("Cirrus"); break; case 0x61: return("ESS Tech pcm"); break; case 0x62: return("voxware "); break; case 0x63: return("canopus atrac"); break; case 0x64: return("G726"); break; case 0x65: return("G722"); break; case 0x66: return("DSAT"); break; case 0x67: return("DSAT display"); break; case 0x69: return("voxware "); break; case 0x70: return("voxware ac8 "); break; case 0x71: return("voxware ac10 "); break; case 0x72: return("voxware ac16"); break; case 0x73: return("voxware ac20"); break; case 0x74: return("voxware rt24"); break; case 0x75: return("voxware rt29"); break; case 0x76: return("voxware rt29hw"); break; case 0x77: return("voxware vr12 "); break; case 0x78: return("voxware vr18"); break; case 0x79: return("voxware tq40"); break; case 0x80: return("softsound"); break; case 0x81: return("voxware tq60 "); break; case 0x82: return("MS RT24"); break; case 0x83: return("G729A"); break; case 0x84: return("MVI_MVI2"); break; case 0x85: return("DF G726"); break; case 0x86: return("DF GSM610"); break; case 0x88: return("isaudio"); break; case 0x89: return("onlive"); break; case 0x91: return("sbc24"); break; case 0x92: return("dolby ac3 spdif"); break; case 0x97: return("zyxel adpcm"); break; case 0x98: return("philips lpcbb"); break; case 0x99: return("packed"); break; case 0x100: return("rhetorex adpcm"); break; case 0x101: return("Irat"); break; case 0x102: return("IBM_alaw?"); break; case 0x103: return("IBM_ADPCM?"); break; case 0x111: return("vivo G723"); break; case 0x112: return("vivo siren"); break; case 0x123: return("digital g273"); break; case 0x200: return("Creative_ADPCM"); break; case 0x202: return("Creative fastspeech 8"); break; case 0x203: return("Creative fastspeech 10"); break; case 0x220: return("quarterdeck"); break; case 0x300: return("FM_TOWNS_SND"); break; case 0x400: return("BTV digital"); break; case 0x680: return("VME vmpcm"); break; case 0x1000: return("OLIGSM"); break; case 0x1001: return("OLIADPCM"); break; case 0x1002: return("OLICELP"); break; case 0x1003: return("OLISBC"); break; case 0x1004: return("OLIOPR"); break; case 0x1100: return("LH codec"); break; case 0x1400: return("Norris"); break; case 0x1401: return("isaudio"); break; case 0x1500: return("Soundspace musicompression"); break; case 0x2000: return("DVM"); break; } break; default: break; } return("unknown"); /* NULL here isn't safe -- Sun segfaults */ } bool mus_header_no_header(const char *filename) { int fd; long long int bytes; bool ok = false; fd = mus_file_open_read(filename); if (fd == -1) return(mus_error(MUS_CANT_OPEN_FILE, "mus_header: can't open %s: %s", filename, STRERROR(errno))); bytes = (long long int)read(fd, hdrbuf, INITIAL_READ_SIZE); CLOSE(fd, filename); if (bytes > 4) ok = ((match_four_chars((unsigned char *)hdrbuf, I_DSND)) || (match_four_chars((unsigned char *)hdrbuf, I_DECN)) || (match_four_chars((unsigned char *)hdrbuf, I_FORM)) || (match_four_chars((unsigned char *)hdrbuf, I_RIFF)) || (match_four_chars((unsigned char *)hdrbuf, I_RIFX)) || (match_four_chars((unsigned char *)hdrbuf, I_RF64)) || (match_four_chars((unsigned char *)hdrbuf, I_caff)) || (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_VAX)) || (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_SUN)) || (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_MIPS)) || (equal_big_or_little_endian((unsigned char *)hdrbuf, I_IRCAM_NEXT)) || (match_four_chars((unsigned char *)hdrbuf, I_NIST)) || (match_four_chars((unsigned char *)hdrbuf, I_SOUN)) || (match_four_chars((unsigned char *)hdrbuf, I_VOC0)) || (match_four_chars((unsigned char *)hdrbuf, I_AVR_)) || (mus_char_to_bshort((unsigned char *)hdrbuf) == 1336) || (match_four_chars((unsigned char *)hdrbuf, I_ALaw)) || (match_four_chars((unsigned char *)hdrbuf, I_GF1P)) || (match_four_chars((unsigned char *)hdrbuf, I_DSIG)) || (match_four_chars((unsigned char *)hdrbuf, I_GOLD)) || (match_four_chars((unsigned char *)hdrbuf, I_Diam)) || (match_four_chars((unsigned char *)hdrbuf, I_SRFS)) || (match_four_chars((unsigned char *)hdrbuf, I_CSRE)) || (match_four_chars((unsigned char *)hdrbuf, I_file)) || ((hdrbuf[0] == 0xf0) && (hdrbuf[1] == 0x7e) && (hdrbuf[3] == 0x01)) || (equal_big_or_little_endian((unsigned char *)(hdrbuf + 16), 0x00006a1a)) || (match_four_chars((unsigned char *)hdrbuf, I_SPIB)) || (match_four_chars((unsigned char *)hdrbuf, I_S___)) || (match_four_chars((unsigned char *)hdrbuf, I_riff)) || (match_four_chars((unsigned char *)hdrbuf, I_PVF1)) || (match_four_chars((unsigned char *)hdrbuf, I_PVF2)) || (match_four_chars((unsigned char *)hdrbuf, I_MThd)) || (match_four_chars((unsigned char *)hdrbuf, I_SND_)) || (match_four_chars((unsigned char *)hdrbuf, I_FSMt)) || (match_four_chars((unsigned char *)hdrbuf, I_DDSF)) || (match_four_chars((unsigned char *)hdrbuf, I_LM89)) || (match_four_chars((unsigned char *)hdrbuf, I_SY85)) || (match_four_chars((unsigned char *)hdrbuf, I_SY80)) || (match_four_chars((unsigned char *)hdrbuf, I_PRAM)) || (match_four_chars((unsigned char *)(hdrbuf + 35), I_UWFD)) || (match_four_chars((unsigned char *)(hdrbuf + 76), I_SCRS)) || (match_four_chars((unsigned char *)hdrbuf, I_covox)) || (match_four_chars((unsigned char *)hdrbuf, I__PAF)) || (match_four_chars((unsigned char *)hdrbuf, I_FAP_)) || (match_four_chars((unsigned char *)hdrbuf, I_TWIN)) || (match_four_chars((unsigned char *)hdrbuf, I_IMPS)) || (match_four_chars((unsigned char *)hdrbuf, I_SMP1)) || (match_four_chars((unsigned char *)hdrbuf, I_Maui)) || (match_four_chars((unsigned char *)hdrbuf, I_SDIF)) || (match_four_chars((unsigned char *)hdrbuf, I_ajkg)) #if G7XX || (match_four_chars((unsigned char *)hdrbuf, I_NVF_)) #endif ); return(!ok); } void mus_header_set_aiff_loop_info(int *data) { /* include modes */ if (data) { loop_starts[0] = data[0]; loop_ends[0] = data[1]; loop_starts[1] = data[2]; loop_ends[1] = data[3]; base_note = data[4]; base_detune = data[5]; loop_modes[0] = data[6]; loop_modes[1] = data[7]; } else { loop_modes[0] = 0; loop_modes[1] = 0; } } bool mus_is_header_type(int n) { switch (n) { case MUS_NEXT: case MUS_AIFC: case MUS_RIFF: case MUS_RF64: case MUS_BICSF: case MUS_NIST: case MUS_INRS: case MUS_ESPS: case MUS_SVX: case MUS_VOC: case MUS_SNDT: case MUS_RAW: case MUS_SOX: case MUS_SMP: case MUS_AVR: case MUS_IRCAM: case MUS_SD1: case MUS_SPPACK: case MUS_MUS10: case MUS_HCOM: case MUS_PSION: case MUS_MAUD: case MUS_IEEE: case MUS_MATLAB: case MUS_ADC: case MUS_MIDI: case MUS_SOUNDFONT: case MUS_GRAVIS: case MUS_COMDISCO: case MUS_GOLDWAVE: case MUS_SRFS: case MUS_MIDI_SAMPLE_DUMP: case MUS_DIAMONDWARE: case MUS_ADF: case MUS_SBSTUDIOII: case MUS_DELUSION: case MUS_FARANDOLE: case MUS_SAMPLE_DUMP: case MUS_ULTRATRACKER: case MUS_YAMAHA_SY85: case MUS_YAMAHA_TX16W: case MUS_DIGIPLAYER: case MUS_COVOX: case MUS_AVI: case MUS_OMF: case MUS_QUICKTIME: case MUS_ASF: case MUS_YAMAHA_SY99: case MUS_KURZWEIL_2000: case MUS_AIFF: case MUS_PAF: case MUS_CSL: case MUS_FILE_SAMP: case MUS_PVF: case MUS_SOUNDFORGE: case MUS_TWINVQ: case MUS_AKAI4: case MUS_IMPULSETRACKER: case MUS_KORG: case MUS_CAFF: case MUS_MAUI: case MUS_SDIF: case MUS_OGG: case MUS_FLAC: case MUS_SPEEX: case MUS_MPEG: case MUS_SHORTEN: case MUS_TTA: case MUS_WAVPACK: #if G7XX case MUS_NVF: #endif return(true); break; } return(false); } bool mus_is_sample_type(int n) { switch (n) { case MUS_BSHORT: case MUS_MULAW: case MUS_BYTE: case MUS_BFLOAT: case MUS_BINT: case MUS_ALAW: case MUS_UBYTE: case MUS_B24INT: case MUS_BDOUBLE: case MUS_LSHORT: case MUS_LINT: case MUS_LFLOAT: case MUS_LDOUBLE: case MUS_UBSHORT: case MUS_ULSHORT: case MUS_L24INT: case MUS_BINTN: case MUS_LINTN: case MUS_BFLOAT_UNSCALED: case MUS_LFLOAT_UNSCALED: case MUS_BDOUBLE_UNSCALED: case MUS_LDOUBLE_UNSCALED: return(true); break; } return(false); }