int
w64_open (SF_PRIVATE *psf)
{ WAV_PRIVATE * wpriv ;
int subformat, error, blockalign = 0, framesperblock = 0 ;
if ((wpriv = calloc (1, sizeof (WAV_PRIVATE))) == NULL)
return SFE_MALLOC_FAILED ;
psf->container_data = wpriv ;
if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR &&psf->filelength > 0))
{ if ((error = w64_read_header (psf, &blockalign, &framesperblock)))
return error ;
} ;
if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_W64)
return SFE_BAD_OPEN_FORMAT ;
subformat = SF_CODEC (psf->sf.format) ;
if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
{ if (psf->is_pipe)
return SFE_NO_PIPE_WRITE ;
psf->endian = SF_ENDIAN_LITTLE ; /* All W64 files are little endian. */
psf->blockwidth = psf->bytewidth * psf->sf.channels ;
if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM)
{ blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
framesperblock = -1 ;
/*
** At this point we don't know the file length so set it stupidly high, but not
** so high that it triggers undefined behaviour whan something is added to it.
*/
psf->filelength = SF_COUNT_MAX - 10000 ;
psf->datalength = psf->filelength ;
if (psf->sf.frames <= 0)
psf->sf.frames = (psf->blockwidth) ? psf->filelength / psf->blockwidth : psf->filelength ;
} ;
if ((error = w64_write_header (psf, SF_FALSE)))
return error ;
psf->write_header = w64_write_header ;
} ;
psf->container_close = w64_close ;
switch (subformat)
{ case SF_FORMAT_PCM_U8 :
error = pcm_init (psf) ;
break ;
case SF_FORMAT_PCM_16 :
case SF_FORMAT_PCM_24 :
case SF_FORMAT_PCM_32 :
error = pcm_init (psf) ;
break ;
case SF_FORMAT_ULAW :
error = ulaw_init (psf) ;
break ;
case SF_FORMAT_ALAW :
error = alaw_init (psf) ;
break ;
/* Lite remove start */
case SF_FORMAT_FLOAT :
error = float32_init (psf) ;
break ;
case SF_FORMAT_DOUBLE :
error = double64_init (psf) ;
break ;
case SF_FORMAT_IMA_ADPCM :
error = wav_w64_ima_init (psf, blockalign, framesperblock) ;
break ;
case SF_FORMAT_MS_ADPCM :
error = wav_w64_msadpcm_init (psf, blockalign, framesperblock) ;
break ;
/* Lite remove end */
case SF_FORMAT_GSM610 :
error = gsm610_init (psf) ;
break ;
default : return SFE_UNIMPLEMENTED ;
} ;
return error ;
} /* w64_open */
static int
w64_write_header (SF_PRIVATE *psf, int calc_length)
{ sf_count_t fmt_size, current ;
size_t fmt_pad = 0 ;
int subformat, add_fact_chunk = SF_FALSE ;
current = psf_ftell (psf) ;
if (calc_length)
{ psf->filelength = psf_get_filelen (psf) ;
psf->datalength = psf->filelength - psf->dataoffset ;
if (psf->dataend)
psf->datalength -= psf->filelength - psf->dataend ;
if (psf->bytewidth)
psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ;
} ;
/* Reset the current header length to zero. */
psf->header [0] = 0 ;
psf->headindex = 0 ;
psf_fseek (psf, 0, SEEK_SET) ;
/* riff marker, length, wave and 'fmt ' markers. */
psf_binheader_writef (psf, "eh8hh", riff_MARKER16, psf->filelength, wave_MARKER16, fmt_MARKER16) ;
subformat = SF_CODEC (psf->sf.format) ;
switch (subformat)
{ case SF_FORMAT_PCM_U8 :
case SF_FORMAT_PCM_16 :
case SF_FORMAT_PCM_24 :
case SF_FORMAT_PCM_32 :
fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ;
fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ;
fmt_size += fmt_pad ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_PCM, psf->sf.channels, psf->sf.samplerate) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
/* fmt : blockalign, bitwidth */
psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ;
break ;
case SF_FORMAT_FLOAT :
case SF_FORMAT_DOUBLE :
fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ;
fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ;
fmt_size += fmt_pad ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_IEEE_FLOAT, psf->sf.channels, psf->sf.samplerate) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
/* fmt : blockalign, bitwidth */
psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ;
add_fact_chunk = SF_TRUE ;
break ;
case SF_FORMAT_ULAW :
fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ;
fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ;
fmt_size += fmt_pad ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_MULAW, psf->sf.channels, psf->sf.samplerate) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
/* fmt : blockalign, bitwidth */
psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, 8) ;
add_fact_chunk = SF_TRUE ;
break ;
case SF_FORMAT_ALAW :
fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ;
fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ;
fmt_size += fmt_pad ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_ALAW, psf->sf.channels, psf->sf.samplerate) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
/* fmt : blockalign, bitwidth */
psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, 8) ;
add_fact_chunk = SF_TRUE ;
break ;
/* Lite remove start */
case SF_FORMAT_IMA_ADPCM :
{ int blockalign, framesperblock, bytespersec ;
blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
framesperblock = 2 * (blockalign - 4 * psf->sf.channels) / psf->sf.channels + 1 ;
bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ;
/* fmt chunk. */
fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ;
fmt_size += fmt_pad ;
/* fmt : size, WAV format type, channels. */
psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_IMA_ADPCM, psf->sf.channels) ;
/* fmt : samplerate, bytespersec. */
psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ;
/* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
psf_binheader_writef (psf, "e2222", blockalign, 4, 2, framesperblock) ;
} ;
add_fact_chunk = SF_TRUE ;
break ;
case SF_FORMAT_MS_ADPCM :
{ int blockalign, framesperblock, bytespersec, extrabytes ;
blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
framesperblock = 2 + 2 * (blockalign - 7 * psf->sf.channels) / psf->sf.channels ;
bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ;
/* fmt chunk. */
extrabytes = 2 + 2 + MSADPCM_ADAPT_COEFF_COUNT * (2 + 2) ;
fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + extrabytes ;
fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ;
fmt_size += fmt_pad ;
/* fmt : size, W64 format type, channels. */
psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_MS_ADPCM, psf->sf.channels) ;
/* fmt : samplerate, bytespersec. */
psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ;
/* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
psf_binheader_writef (psf, "e22222", blockalign, 4, extrabytes, framesperblock, 7) ;
msadpcm_write_adapt_coeffs (psf) ;
} ;
add_fact_chunk = SF_TRUE ;
break ;
/* Lite remove end */
case SF_FORMAT_GSM610 :
{ int bytespersec ;
bytespersec = (psf->sf.samplerate * WAV_W64_GSM610_BLOCKSIZE) / WAV_W64_GSM610_SAMPLES ;
/* fmt chunk. */
fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ;
fmt_size += fmt_pad ;
/* fmt : size, WAV format type, channels. */
psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_GSM610, psf->sf.channels) ;
/* fmt : samplerate, bytespersec. */
psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ;
/* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
psf_binheader_writef (psf, "e2222", WAV_W64_GSM610_BLOCKSIZE, 0, 2, WAV_W64_GSM610_SAMPLES) ;
} ;
add_fact_chunk = SF_TRUE ;
break ;
default : return SFE_UNIMPLEMENTED ;
} ;
/* Pad to 8 bytes with zeros. */
if (fmt_pad > 0)
psf_binheader_writef (psf, "z", fmt_pad) ;
if (add_fact_chunk)
psf_binheader_writef (psf, "eh88", fact_MARKER16, (sf_count_t) (16 + 8 + 8), psf->sf.frames) ;
psf_binheader_writef (psf, "eh8", data_MARKER16, psf->datalength + 24) ;
psf_fwrite (psf->header, psf->headindex, 1, psf) ;
if (psf->error)
return psf->error ;
psf->dataoffset = psf->headindex ;
if (current > 0)
psf_fseek (psf, current, SEEK_SET) ;
return psf->error ;
} /* w64_write_header */
int
w64_open (SF_PRIVATE *psf)
{ int subformat, error, blockalign = 0, framesperblock = 0 ;
if (psf->mode == SFM_READ || (psf->mode == SFM_RDWR &&psf->filelength > 0))
{ if ((error = w64_read_header (psf, &blockalign, &framesperblock)))
return error ;
};
if ((psf->sf.format & SF_FORMAT_TYPEMASK) != SF_FORMAT_W64)
return SFE_BAD_OPEN_FORMAT ;
subformat = psf->sf.format & SF_FORMAT_SUBMASK ;
if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR)
{ psf->endian = SF_ENDIAN_LITTLE ; /* All W64 files are little endian. */
psf->blockwidth = psf->bytewidth * psf->sf.channels ;
if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM)
{ blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
framesperblock = -1 ;
/* FIXME : This block must go */
SF_COUNT_MAX_POSITIVE (psf->filelength) ;
psf->datalength = psf->filelength ;
if (psf->sf.frames <= 0)
psf->sf.frames = (psf->blockwidth) ? psf->filelength / psf->blockwidth : psf->filelength ;
/* EMXIF : This block must go */
} ;
if ((error = w64_write_header (psf, SF_FALSE)))
return error ;
psf->write_header = w64_write_header ;
} ;
psf->close = w64_close ;
switch (subformat)
{ case SF_FORMAT_PCM_U8 :
error = pcm_init (psf) ;
break ;
case SF_FORMAT_PCM_16 :
case SF_FORMAT_PCM_24 :
case SF_FORMAT_PCM_32 :
error = pcm_init (psf) ;
break ;
case SF_FORMAT_FLOAT :
error = float32_init (psf) ;
break ;
case SF_FORMAT_DOUBLE :
error = double64_init (psf) ;
break ;
case SF_FORMAT_ULAW :
error = ulaw_init (psf) ;
break ;
case SF_FORMAT_ALAW :
error = alaw_init (psf) ;
break ;
case SF_FORMAT_IMA_ADPCM :
error = wav_w64_ima_init (psf, blockalign, framesperblock) ;
break ;
case SF_FORMAT_MS_ADPCM :
error = wav_w64_msadpcm_init (psf, blockalign, framesperblock) ;
break ;
case SF_FORMAT_GSM610 :
error = gsm610_init (psf) ;
break ;
default : return SFE_UNIMPLEMENTED ;
} ;
return error ;
} /* w64_open */