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freeswitch/libs/libsndfile/src/rf64.c

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/*
** Copyright (C) 2008-2013 Erik de Castro Lopo <erikd@mega-nerd.com>
** Copyright (C) 2009 Uli Franke <cls@nebadje.org>
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU Lesser General Public License as published by
** the Free Software Foundation; either version 2.1 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
** This format documented at:
** http://www.sr.se/utveckling/tu/bwf/prog/RF_64v1_4.pdf
**
** But this may be a better reference:
** http://www.ebu.ch/CMSimages/en/tec_doc_t3306-2007_tcm6-42570.pdf
*/
#include "sfconfig.h"
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <ctype.h>
#include "sndfile.h"
#include "sfendian.h"
#include "common.h"
#include "wav_w64.h"
/*------------------------------------------------------------------------------
** Macros to handle big/little endian issues.
*/
#define RF64_MARKER MAKE_MARKER ('R', 'F', '6', '4')
#define FFFF_MARKER MAKE_MARKER (0xff, 0xff, 0xff, 0xff)
#define WAVE_MARKER MAKE_MARKER ('W', 'A', 'V', 'E')
#define ds64_MARKER MAKE_MARKER ('d', 's', '6', '4')
#define fmt_MARKER MAKE_MARKER ('f', 'm', 't', ' ')
#define fact_MARKER MAKE_MARKER ('f', 'a', 'c', 't')
#define data_MARKER MAKE_MARKER ('d', 'a', 't', 'a')
#define bext_MARKER MAKE_MARKER ('b', 'e', 'x', 't')
#define cart_MARKER MAKE_MARKER ('c', 'a', 'r', 't')
#define OggS_MARKER MAKE_MARKER ('O', 'g', 'g', 'S')
#define wvpk_MARKER MAKE_MARKER ('w', 'v', 'p', 'k')
/*------------------------------------------------------------------------------
** Typedefs.
*/
/*------------------------------------------------------------------------------
** Private static functions.
*/
static int rf64_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) ;
static int rf64_write_header (SF_PRIVATE *psf, int calc_length) ;
static int rf64_close (SF_PRIVATE *psf) ;
static int rf64_command (SF_PRIVATE *psf, int command, void * UNUSED (data), int datasize) ;
/*------------------------------------------------------------------------------
** Public function.
*/
int
rf64_open (SF_PRIVATE *psf)
{ WAV_PRIVATE *wpriv ;
int subformat, error = 0 ;
int blockalign, framesperblock ;
if ((wpriv = calloc (1, sizeof (WAV_PRIVATE))) == NULL)
return SFE_MALLOC_FAILED ;
psf->container_data = wpriv ;
wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
/* All RF64 files are little endian. */
psf->endian = SF_ENDIAN_LITTLE ;
if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0))
{ if ((error = rf64_read_header (psf, &blockalign, &framesperblock)) != 0)
return error ;
} ;
if ((psf->sf.format & SF_FORMAT_TYPEMASK) != SF_FORMAT_RF64)
return SFE_BAD_OPEN_FORMAT ;
subformat = psf->sf.format & SF_FORMAT_SUBMASK ;
if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
{ if (psf->is_pipe)
return SFE_NO_PIPE_WRITE ;
psf->blockwidth = psf->bytewidth * psf->sf.channels ;
if ((error = rf64_write_header (psf, SF_FALSE)))
return error ;
psf->write_header = rf64_write_header ;
} ;
psf->container_close = rf64_close ;
psf->command = rf64_command ;
switch (subformat)
{ case SF_FORMAT_PCM_U8 :
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 ;
/* Lite remove end */
default : return SFE_UNIMPLEMENTED ;
} ;
return error ;
} /* rf64_open */
/*------------------------------------------------------------------------------
*/
enum
{ HAVE_ds64 = 0x01,
HAVE_fmt = 0x02,
HAVE_bext = 0x04,
HAVE_data = 0x08,
HAVE_cart = 0x10
} ;
#define HAVE_CHUNK(CHUNK) ((parsestage & CHUNK) != 0)
static int
rf64_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock)
{ WAV_PRIVATE *wpriv ;
WAV_FMT *wav_fmt ;
sf_count_t riff_size = 0, frame_count = 0, ds64_datalength = 0 ;
uint32_t marks [2], size32, parsestage = 0 ;
int marker, error, done = 0, format = 0 ;
if ((wpriv = psf->container_data) == NULL)
return SFE_INTERNAL ;
wav_fmt = &wpriv->wav_fmt ;
/* Set position to start of file to begin reading header. */
psf_binheader_readf (psf, "pmmm", 0, &marker, marks, marks + 1) ;
if (marker != RF64_MARKER || marks [1] != WAVE_MARKER)
return SFE_RF64_NOT_RF64 ;
if (marks [0] == FFFF_MARKER)
psf_log_printf (psf, "%M\n %M\n", RF64_MARKER, WAVE_MARKER) ;
else
psf_log_printf (psf, "%M : 0x%x (should be 0xFFFFFFFF)\n %M\n", RF64_MARKER, WAVE_MARKER) ;
while (NOT (done))
{ psf_binheader_readf (psf, "em4", &marker, &size32) ;
switch (marker)
{ case ds64_MARKER :
{ unsigned int table_len, bytesread ;
/* Read ds64 sizes (3 8-byte words). */
bytesread = psf_binheader_readf (psf, "888", &riff_size, &ds64_datalength, &frame_count) ;
/* Read table length. */
bytesread += psf_binheader_readf (psf, "4", &table_len) ;
/* Skip table for now. (this was "table_len + 4", why?) */
bytesread += psf_binheader_readf (psf, "j", table_len) ;
if (size32 == bytesread)
psf_log_printf (psf, "%M : %u\n", marker, size32) ;
else if (size32 >= bytesread + 4)
{ unsigned int next ;
psf_binheader_readf (psf, "m", &next) ;
if (next == fmt_MARKER)
{ psf_log_printf (psf, "%M : %u (should be %u)\n", marker, size32, bytesread) ;
psf_binheader_readf (psf, "j", -4) ;
}
else
{ psf_log_printf (psf, "%M : %u\n", marker, size32) ;
psf_binheader_readf (psf, "j", size32 - bytesread - 4) ;
} ;
} ;
if (psf->filelength != riff_size + 8)
psf_log_printf (psf, " Riff size : %D (should be %D)\n", riff_size, psf->filelength - 8) ;
else
psf_log_printf (psf, " Riff size : %D\n", riff_size) ;
psf_log_printf (psf, " Data size : %D\n", ds64_datalength) ;
psf_log_printf (psf, " Frames : %D\n", frame_count) ;
psf_log_printf (psf, " Table length : %u\n", table_len) ;
} ;
parsestage |= HAVE_ds64 ;
break ;
case fmt_MARKER:
psf_log_printf (psf, "%M : %u\n", marker, size32) ;
if ((error = wav_w64_read_fmt_chunk (psf, size32)) != 0)
return error ;
format = wav_fmt->format ;
parsestage |= HAVE_fmt ;
break ;
case bext_MARKER :
if ((error = wav_read_bext_chunk (psf, size32)) != 0)
return error ;
parsestage |= HAVE_bext ;
break ;
case cart_MARKER :
if ((error = wav_read_cart_chunk (psf, size32)) != 0)
return error ;
parsestage |= HAVE_cart ;
break ;
case data_MARKER :
/* see wav for more sophisticated parsing -> implement state machine with parsestage */
if (HAVE_CHUNK (HAVE_ds64))
{ if (size32 == 0xffffffff)
psf_log_printf (psf, "%M : 0x%x\n", marker, size32) ;
else
psf_log_printf (psf, "%M : 0x%x (should be 0xffffffff\n", marker, size32) ;
psf->datalength = ds64_datalength ;
}
else
{ if (size32 == 0xffffffff)
{ psf_log_printf (psf, "%M : 0x%x\n", marker, size32) ;
psf_log_printf (psf, " *** Data length not specified no 'ds64' chunk.\n") ;
}
else
{ psf_log_printf (psf, "%M : 0x%x\n**** Weird, RF64 file without a 'ds64' chunk and no valid 'data' size.\n", marker, size32) ;
psf->datalength = size32 ;
} ;
} ;
psf->dataoffset = psf_ftell (psf) ;
if (psf->dataoffset > 0)
{ if (size32 == 0 && riff_size == 8 && psf->filelength > 44)
{ psf_log_printf (psf, " *** Looks like a WAV file which wasn't closed properly. Fixing it.\n") ;
psf->datalength = psf->filelength - psf->dataoffset ;
} ;
/* Only set dataend if there really is data at the end. */
if (psf->datalength + psf->dataoffset < psf->filelength)
psf->dataend = psf->datalength + psf->dataoffset ;
if (NOT (psf->sf.seekable) || psf->dataoffset < 0)
break ;
/* Seek past data and continue reading header. */
psf_fseek (psf, psf->datalength, SEEK_CUR) ;
if (psf_ftell (psf) != psf->datalength + psf->dataoffset)
psf_log_printf (psf, " *** psf_fseek past end error ***\n") ;
break ;
} ;
break ;
default :
if (isprint ((marker >> 24) & 0xFF) && isprint ((marker >> 16) & 0xFF)
&& isprint ((marker >> 8) & 0xFF) && isprint (marker & 0xFF))
{ psf_log_printf (psf, "*** %M : %d (unknown marker)\n", marker, size32) ;
if (size32 < 8)
done = SF_TRUE ;
psf_binheader_readf (psf, "j", size32) ;
break ;
} ;
if (psf_ftell (psf) & 0x03)
{ psf_log_printf (psf, " Unknown chunk marker at position 0x%x. Resynching.\n", size32 - 4) ;
psf_binheader_readf (psf, "j", -3) ;
break ;
} ;
psf_log_printf (psf, "*** Unknown chunk marker (0x%X) at position 0x%X. Exiting parser.\n", marker, psf_ftell (psf) - 4) ;
done = SF_TRUE ;
break ;
} ; /* switch (marker) */
if (psf_ftell (psf) >= psf->filelength - SIGNED_SIZEOF (marker))
{ psf_log_printf (psf, "End\n") ;
break ;
} ;
} ;
if (psf->dataoffset <= 0)
return SFE_WAV_NO_DATA ;
/* WAVs can be little or big endian */
psf->endian = psf->rwf_endian ;
psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
if (psf->is_pipe == 0)
{ /*
** Check for 'wvpk' at the start of the DATA section. Not able to
** handle this.
*/
psf_binheader_readf (psf, "4", &marker) ;
if (marker == wvpk_MARKER || marker == OggS_MARKER)
return SFE_WAV_WVPK_DATA ;
} ;
/* Seek to start of DATA section. */
psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
if (psf->blockwidth)
{ if (psf->filelength - psf->dataoffset < psf->datalength)
psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ;
else
psf->sf.frames = psf->datalength / psf->blockwidth ;
} ;
if (frame_count != psf->sf.frames)
psf_log_printf (psf, "*** Calculated frame count %d does not match value from 'ds64' chunk of %d.\n", psf->sf.frames, frame_count) ;
switch (format)
{
case WAVE_FORMAT_EXTENSIBLE :
/* with WAVE_FORMAT_EXTENSIBLE the psf->sf.format field is already set. We just have to set the major to rf64 */
psf->sf.format = (psf->sf.format & ~SF_FORMAT_TYPEMASK) | SF_FORMAT_RF64 ;
if (psf->sf.format == (SF_FORMAT_WAVEX | SF_FORMAT_MS_ADPCM))
{ *blockalign = wav_fmt->msadpcm.blockalign ;
*framesperblock = wav_fmt->msadpcm.samplesperblock ;
} ;
break ;
case WAVE_FORMAT_PCM :
psf->sf.format = SF_FORMAT_RF64 | u_bitwidth_to_subformat (psf->bytewidth * 8) ;
break ;
case WAVE_FORMAT_MULAW :
case IBM_FORMAT_MULAW :
psf->sf.format = (SF_FORMAT_RF64 | SF_FORMAT_ULAW) ;
break ;
case WAVE_FORMAT_ALAW :
case IBM_FORMAT_ALAW :
psf->sf.format = (SF_FORMAT_RF64 | SF_FORMAT_ALAW) ;
break ;
case WAVE_FORMAT_MS_ADPCM :
psf->sf.format = (SF_FORMAT_RF64 | SF_FORMAT_MS_ADPCM) ;
*blockalign = wav_fmt->msadpcm.blockalign ;
*framesperblock = wav_fmt->msadpcm.samplesperblock ;
break ;
case WAVE_FORMAT_IMA_ADPCM :
psf->sf.format = (SF_FORMAT_RF64 | SF_FORMAT_IMA_ADPCM) ;
*blockalign = wav_fmt->ima.blockalign ;
*framesperblock = wav_fmt->ima.samplesperblock ;
break ;
case WAVE_FORMAT_GSM610 :
psf->sf.format = (SF_FORMAT_RF64 | SF_FORMAT_GSM610) ;
break ;
case WAVE_FORMAT_IEEE_FLOAT :
psf->sf.format = SF_FORMAT_RF64 ;
psf->sf.format |= (psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT ;
break ;
case WAVE_FORMAT_G721_ADPCM :
psf->sf.format = SF_FORMAT_RF64 | SF_FORMAT_G721_32 ;
break ;
default : return SFE_UNIMPLEMENTED ;
} ;
if (wpriv->fmt_is_broken)
wav_w64_analyze (psf) ;
/* Only set the format endian-ness if its non-standard big-endian. */
if (psf->endian == SF_ENDIAN_BIG)
psf->sf.format |= SF_ENDIAN_BIG ;
return 0 ;
} /* rf64_read_header */
/* known WAVEFORMATEXTENSIBLE GUIDS */
static const EXT_SUBFORMAT MSGUID_SUBTYPE_PCM =
{ 0x00000001, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
static const EXT_SUBFORMAT MSGUID_SUBTYPE_MS_ADPCM =
{ 0x00000002, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
static const EXT_SUBFORMAT MSGUID_SUBTYPE_IEEE_FLOAT =
{ 0x00000003, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
static const EXT_SUBFORMAT MSGUID_SUBTYPE_ALAW =
{ 0x00000006, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
static const EXT_SUBFORMAT MSGUID_SUBTYPE_MULAW =
{ 0x00000007, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
/*
** the next two are from
** http://dream.cs.bath.ac.uk/researchdev/wave-ex/bformat.html
*/
static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM =
{ 0x00000001, 0x0721, 0x11d3, { 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 }
} ;
static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT =
{ 0x00000003, 0x0721, 0x11d3, { 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 }
} ;
static int
rf64_write_fmt_chunk (SF_PRIVATE *psf)
{ WAV_PRIVATE *wpriv ;
int subformat, fmt_size ;
if ((wpriv = psf->container_data) == NULL)
return SFE_INTERNAL ;
subformat = psf->sf.format & SF_FORMAT_SUBMASK ;
/* initial section (same for all, it appears) */
switch (subformat)
{ case SF_FORMAT_PCM_U8 :
case SF_FORMAT_PCM_16 :
case SF_FORMAT_PCM_24 :
case SF_FORMAT_PCM_32 :
case SF_FORMAT_FLOAT :
case SF_FORMAT_DOUBLE :
case SF_FORMAT_ULAW :
case SF_FORMAT_ALAW :
fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 + 4 + 4 + 2 + 2 + 8 ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_EXTENSIBLE, psf->sf.channels, psf->sf.samplerate) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ;
/* fmt : blockalign, bitwidth */
psf_binheader_writef (psf, "22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ;
/* cbSize 22 is sizeof (WAVEFORMATEXTENSIBLE) - sizeof (WAVEFORMATEX) */
psf_binheader_writef (psf, "2", 22) ;
/* wValidBitsPerSample, for our use same as bitwidth as we use it fully */
psf_binheader_writef (psf, "2", psf->bytewidth * 8) ;
/* For an Ambisonic file set the channel mask to zero.
** Otherwise use a default based on the channel count.
*/
if (wpriv->wavex_ambisonic != SF_AMBISONIC_NONE)
psf_binheader_writef (psf, "4", 0) ;
else if (wpriv->wavex_channelmask != 0)
psf_binheader_writef (psf, "4", wpriv->wavex_channelmask) ;
else
{ /*
** Ok some liberty is taken here to use the most commonly used channel masks
** instead of "no mapping". If you really want to use "no mapping" for 8 channels and less
** please don't use wavex. (otherwise we'll have to create a new SF_COMMAND)
*/
switch (psf->sf.channels)
{ case 1 : /* center channel mono */
psf_binheader_writef (psf, "4", 0x4) ;
break ;
case 2 : /* front left and right */
psf_binheader_writef (psf, "4", 0x1 | 0x2) ;
break ;
case 4 : /* Quad */
psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x10 | 0x20) ;
break ;
case 6 : /* 5.1 */
psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20) ;
break ;
case 8 : /* 7.1 */
psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20 | 0x40 | 0x80) ;
break ;
default : /* 0 when in doubt , use direct out, ie NO mapping*/
psf_binheader_writef (psf, "4", 0x0) ;
break ;
} ;
} ;
break ;
case SF_FORMAT_MS_ADPCM : /* Todo, GUID exists might have different header as per wav_write_header */
default :
return SFE_UNIMPLEMENTED ;
} ;
/* GUID section, different for each */
switch (subformat)
{ case SF_FORMAT_PCM_U8 :
case SF_FORMAT_PCM_16 :
case SF_FORMAT_PCM_24 :
case SF_FORMAT_PCM_32 :
wavex_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ?
&MSGUID_SUBTYPE_PCM : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM) ;
break ;
case SF_FORMAT_FLOAT :
case SF_FORMAT_DOUBLE :
wavex_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ?
&MSGUID_SUBTYPE_IEEE_FLOAT : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT) ;
break ;
case SF_FORMAT_ULAW :
wavex_write_guid (psf, &MSGUID_SUBTYPE_MULAW) ;
break ;
case SF_FORMAT_ALAW :
wavex_write_guid (psf, &MSGUID_SUBTYPE_ALAW) ;
break ;
default : return SFE_UNIMPLEMENTED ;
} ;
return 0 ;
} /* rf64_write_fmt_chunk */
static int
rf64_write_header (SF_PRIVATE *psf, int calc_length)
{ sf_count_t current ;
int error = 0, has_data = SF_FALSE ;
current = psf_ftell (psf) ;
if (psf->dataoffset > 0 && current > psf->dataoffset)
has_data = SF_TRUE ;
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 > 0)
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) ;
psf_binheader_writef (psf, "em4m", RF64_MARKER, 0xffffffff, WAVE_MARKER) ;
/* Currently no table. */
psf_binheader_writef (psf, "m48884", ds64_MARKER, 28, psf->filelength - 8, psf->datalength, psf->sf.frames, 0) ;
/* WAVE and 'fmt ' markers. */
psf_binheader_writef (psf, "m", fmt_MARKER) ;
/* Write the 'fmt ' chunk. */
switch (psf->sf.format & SF_FORMAT_TYPEMASK)
{ case SF_FORMAT_WAV :
psf_log_printf (psf, "ooops SF_FORMAT_WAV\n") ;
return SFE_UNIMPLEMENTED ;
break ;
case SF_FORMAT_WAVEX :
case SF_FORMAT_RF64 :
if ((error = rf64_write_fmt_chunk (psf)) != 0)
return error ;
break ;
default :
return SFE_UNIMPLEMENTED ;
} ;
if (psf->broadcast_16k != NULL)
wav_write_bext_chunk (psf) ;
if (psf->cart_16k != NULL)
wav_write_cart_chunk (psf) ;
#if 0
/* The LIST/INFO chunk. */
if (psf->strings.flags & SF_STR_LOCATE_START)
wav_write_strings (psf, SF_STR_LOCATE_START) ;
if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_START)
{ psf_binheader_writef (psf, "m4", PEAK_MARKER, WAV_PEAK_CHUNK_SIZE (psf->sf.channels)) ;
psf_binheader_writef (psf, "44", 1, time (NULL)) ;
for (k = 0 ; k < psf->sf.channels ; k++)
psf_binheader_writef (psf, "ft8", (float) psf->peak_info->peaks [k].value, psf->peak_info->peaks [k].position) ;
} ;
// if (psf->broadcast_info != NULL)
// wav_write_bext_chunk (psf) ;
if (psf->instrument != NULL)
{ int tmp ;
double dtune = (double) (0x40000000) / 25.0 ;
psf_binheader_writef (psf, "m4", smpl_MARKER, 9 * 4 + psf->instrument->loop_count * 6 * 4) ;
psf_binheader_writef (psf, "44", 0, 0) ; /* Manufacturer zero is everyone */
tmp = (int) (1.0e9 / psf->sf.samplerate) ; /* Sample period in nano seconds */
psf_binheader_writef (psf, "44", tmp, psf->instrument->basenote) ;
tmp = (unsigned int) (psf->instrument->detune * dtune + 0.5) ;
psf_binheader_writef (psf, "4", tmp) ;
psf_binheader_writef (psf, "44", 0, 0) ; /* SMTPE format */
psf_binheader_writef (psf, "44", psf->instrument->loop_count, 0) ;
for (tmp = 0 ; tmp < psf->instrument->loop_count ; tmp++)
{ int type ;
type = psf->instrument->loops [tmp].mode ;
type = (type == SF_LOOP_FORWARD ? 0 : type == SF_LOOP_BACKWARD ? 2 : type == SF_LOOP_ALTERNATING ? 1 : 32) ;
psf_binheader_writef (psf, "44", tmp, type) ;
psf_binheader_writef (psf, "44", psf->instrument->loops [tmp].start, psf->instrument->loops [tmp].end) ;
psf_binheader_writef (psf, "44", 0, psf->instrument->loops [tmp].count) ;
} ;
} ;
if (psf->headindex + 8 < psf->dataoffset)
{ /* Add PAD data if necessary. */
k = psf->dataoffset - 16 - psf->headindex ;
psf_binheader_writef (psf, "m4z", PAD_MARKER, k, make_size_t (k)) ;
} ;
#endif
psf_binheader_writef (psf, "m4", data_MARKER, 0xffffffff) ;
psf_fwrite (psf->header, psf->headindex, 1, psf) ;
if (psf->error)
return psf->error ;
if (has_data && psf->dataoffset != psf->headindex)
{ printf ("Oooops : has_data && psf->dataoffset != psf->headindex\n") ;
return psf->error = SFE_INTERNAL ;
} ;
psf->dataoffset = psf->headindex ;
if (NOT (has_data))
psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
else if (current > 0)
psf_fseek (psf, current, SEEK_SET) ;
return psf->error ;
} /* rf64_write_header */
static int
rf64_close (SF_PRIVATE *psf)
{
if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
{ // rf64_write_tailer (psf) ;
psf->write_header (psf, SF_TRUE) ;
} ;
return 0 ;
} /* rf64_close */
static int
rf64_command (SF_PRIVATE *psf, int command, void * UNUSED (data), int datasize)
{ WAV_PRIVATE *wpriv ;
if ((wpriv = psf->container_data) == NULL)
return SFE_INTERNAL ;
switch (command)
{ case SFC_WAVEX_SET_AMBISONIC :
if ((SF_CONTAINER (psf->sf.format)) == SF_FORMAT_WAVEX)
{ if (datasize == SF_AMBISONIC_NONE)
wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
else if (datasize == SF_AMBISONIC_B_FORMAT)
wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ;
else
return 0 ;
} ;
return wpriv->wavex_ambisonic ;
case SFC_WAVEX_GET_AMBISONIC :
return wpriv->wavex_ambisonic ;
case SFC_SET_CHANNEL_MAP_INFO :
wpriv->wavex_channelmask = wavex_gen_channel_mask (psf->channel_map, psf->sf.channels) ;
return (wpriv->wavex_channelmask != 0) ;
default :
break ;
} ;
return 0 ;
} /* rf64_command */
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