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audacity/lib-src/libsndfile/src/wav.c
Leland Lucius b749a16943 Update libsndfile to 1.0.29pre2+git 
This pulls in MANY (over 890) changes compared to our
from our current 1.0.24 version.
2020-03-16 22:41:09 -05:00

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/*
** Copyright (C) 1999-2019 Erik de Castro Lopo <erikd@mega-nerd.com>
** Copyright (C) 2004-2005 David Viens <davidv@plogue.com>
**
** 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.
*/
#include "sfconfig.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include <inttypes.h>
#include "sndfile.h"
#include "sfendian.h"
#include "common.h"
#include "wavlike.h"
/*------------------------------------------------------------------------------
* Macros to handle big/little endian issues.
*/
#define RIFF_MARKER (MAKE_MARKER ('R', 'I', 'F', 'F'))
#define RIFX_MARKER (MAKE_MARKER ('R', 'I', 'F', 'X'))
#define WAVE_MARKER (MAKE_MARKER ('W', 'A', 'V', 'E'))
#define fmt_MARKER (MAKE_MARKER ('f', 'm', 't', ' '))
#define fact_MARKER (MAKE_MARKER ('f', 'a', 'c', 't'))
#define cue_MARKER (MAKE_MARKER ('c', 'u', 'e', ' '))
#define slnt_MARKER (MAKE_MARKER ('s', 'l', 'n', 't'))
#define wavl_MARKER (MAKE_MARKER ('w', 'a', 'v', 'l'))
#define plst_MARKER (MAKE_MARKER ('p', 'l', 's', 't'))
#define smpl_MARKER (MAKE_MARKER ('s', 'm', 'p', 'l'))
#define iXML_MARKER (MAKE_MARKER ('i', 'X', 'M', 'L'))
#define levl_MARKER (MAKE_MARKER ('l', 'e', 'v', 'l'))
#define MEXT_MARKER (MAKE_MARKER ('M', 'E', 'X', 'T'))
#define acid_MARKER (MAKE_MARKER ('a', 'c', 'i', 'd'))
#define strc_MARKER (MAKE_MARKER ('s', 't', 'r', 'c'))
#define afsp_MARKER (MAKE_MARKER ('a', 'f', 's', 'p'))
#define clm_MARKER (MAKE_MARKER ('c', 'l', 'm', ' '))
#define elmo_MARKER (MAKE_MARKER ('e', 'l', 'm', 'o'))
#define FLLR_MARKER (MAKE_MARKER ('F', 'L', 'L', 'R'))
#define minf_MARKER (MAKE_MARKER ('m', 'i', 'n', 'f'))
#define elm1_MARKER (MAKE_MARKER ('e', 'l', 'm', '1'))
#define regn_MARKER (MAKE_MARKER ('r', 'e', 'g', 'n'))
#define ovwf_MARKER (MAKE_MARKER ('o', 'v', 'w', 'f'))
#define umid_MARKER (MAKE_MARKER ('u', 'm', 'i', 'd'))
#define SyLp_MARKER (MAKE_MARKER ('S', 'y', 'L', 'p'))
#define Cr8r_MARKER (MAKE_MARKER ('C', 'r', '8', 'r'))
#define JUNK_MARKER (MAKE_MARKER ('J', 'U', 'N', 'K'))
#define PMX_MARKER (MAKE_MARKER ('_', 'P', 'M', 'X'))
#define inst_MARKER (MAKE_MARKER ('i', 'n', 's', 't'))
#define AFAn_MARKER (MAKE_MARKER ('A', 'F', 'A', 'n'))
/* Weird WAVPACK marker which can show up at the start of the DATA section. */
#define wvpk_MARKER (MAKE_MARKER ('w', 'v', 'p', 'k'))
#define OggS_MARKER (MAKE_MARKER ('O', 'g', 'g', 'S'))
#define WAVLIKE_PEAK_CHUNK_SIZE(ch) (2 * sizeof (int) + ch * (sizeof (float) + sizeof (int)))
enum
{ HAVE_RIFF = 0x01,
HAVE_WAVE = 0x02,
HAVE_fmt = 0x04,
HAVE_fact = 0x08,
HAVE_PEAK = 0x10,
HAVE_data = 0x20,
HAVE_other = 0x80000000
} ;
/* known WAVEFORMATEXTENSIBLE GUIDS */
static const EXT_SUBFORMAT MSGUID_SUBTYPE_PCM =
{ 0x00000001, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
#if 0
static const EXT_SUBFORMAT MSGUID_SUBTYPE_MS_ADPCM =
{ 0x00000002, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;
#endif
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 }
} ;
#if 0
/* maybe interesting one day to read the following through sf_read_raw */
/* http://www.bath.ac.uk/~masrwd/pvocex/pvocex.html */
static const EXT_SUBFORMAT MSGUID_SUBTYPE_PVOCEX =
{ 0x8312B9C2, 0x2E6E, 0x11d4, { 0xA8, 0x24, 0xDE, 0x5B, 0x96, 0xC3, 0xAB, 0x21 }
} ;
#endif
/*------------------------------------------------------------------------------
** Private static functions.
*/
static int wav_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) ;
static int wav_write_header (SF_PRIVATE *psf, int calc_length) ;
static int wav_write_tailer (SF_PRIVATE *psf) ;
static int wav_command (SF_PRIVATE *psf, int command, void *data, int datasize) ;
static int wav_close (SF_PRIVATE *psf) ;
static int wav_read_smpl_chunk (SF_PRIVATE *psf, uint32_t chunklen) ;
static int wav_read_acid_chunk (SF_PRIVATE *psf, uint32_t chunklen) ;
static int wav_set_chunk (SF_PRIVATE *psf, const SF_CHUNK_INFO * chunk_info) ;
static SF_CHUNK_ITERATOR * wav_next_chunk_iterator (SF_PRIVATE *psf, SF_CHUNK_ITERATOR * iterator) ;
static int wav_get_chunk_size (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info) ;
static int wav_get_chunk_data (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info) ;
/*------------------------------------------------------------------------------
** Public function.
*/
int
wav_open (SF_PRIVATE *psf)
{ WAVLIKE_PRIVATE * wpriv ;
int format, subformat, error, blockalign = 0, framesperblock = 0 ;
if ((wpriv = calloc (1, sizeof (WAVLIKE_PRIVATE))) == NULL)
return SFE_MALLOC_FAILED ;
psf->container_data = wpriv ;
wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
psf->strings.flags = SF_STR_ALLOW_START | SF_STR_ALLOW_END ;
if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0))
{ if ((error = wav_read_header (psf, &blockalign, &framesperblock)))
return error ;
psf->next_chunk_iterator = wav_next_chunk_iterator ;
psf->get_chunk_size = wav_get_chunk_size ;
psf->get_chunk_data = wav_get_chunk_data ;
} ;
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 ;
wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ;
format = SF_CONTAINER (psf->sf.format) ;
if (format != SF_FORMAT_WAV && format != SF_FORMAT_WAVEX)
return SFE_BAD_OPEN_FORMAT ;
psf->blockwidth = psf->bytewidth * psf->sf.channels ;
/* RIFF WAVs are little-endian, RIFX WAVs are big-endian, default to little */
psf->endian = SF_ENDIAN (psf->sf.format) ;
if (CPU_IS_BIG_ENDIAN && psf->endian == SF_ENDIAN_CPU)
psf->endian = SF_ENDIAN_BIG ;
else if (psf->endian != SF_ENDIAN_BIG)
psf->endian = SF_ENDIAN_LITTLE ;
if (psf->file.mode != SFM_RDWR || psf->filelength < 44)
{ psf->filelength = 0 ;
psf->datalength = 0 ;
psf->dataoffset = 0 ;
psf->sf.frames = 0 ;
} ;
if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM)
{ blockalign = wavlike_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ;
framesperblock = -1 ; /* Corrected later. */
} ;
/* By default, add the peak chunk to floating point files. Default behaviour
** can be switched off using sf_command (SFC_SET_PEAK_CHUNK, SF_FALSE).
*/
if (psf->file.mode == SFM_WRITE && (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE))
{ if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL)
return SFE_MALLOC_FAILED ;
psf->peak_info->peak_loc = SF_PEAK_START ;
} ;
psf->write_header = wav_write_header ;
psf->set_chunk = wav_set_chunk ;
} ;
psf->container_close = wav_close ;
psf->command = wav_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 ;
case SF_FORMAT_IMA_ADPCM :
error = wavlike_ima_init (psf, blockalign, framesperblock) ;
break ;
case SF_FORMAT_MS_ADPCM :
error = wavlike_msadpcm_init (psf, blockalign, framesperblock) ;
break ;
case SF_FORMAT_G721_32 :
error = g72x_init (psf) ;
break ;
case SF_FORMAT_NMS_ADPCM_16 :
case SF_FORMAT_NMS_ADPCM_24 :
case SF_FORMAT_NMS_ADPCM_32 :
error = nms_adpcm_init (psf) ;
break ;
/* Lite remove end */
case SF_FORMAT_GSM610 :
error = gsm610_init (psf) ;
break ;
default : return SFE_UNIMPLEMENTED ;
} ;
if (psf->file.mode == SFM_WRITE || (psf->file.mode == SFM_RDWR && psf->filelength == 0))
return psf->write_header (psf, SF_FALSE) ;
return error ;
} /* wav_open */
/*=========================================================================
** Private functions.
*/
static int
wav_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock)
{ WAVLIKE_PRIVATE *wpriv ;
WAV_FMT *wav_fmt ;
FACT_CHUNK fact_chunk ;
uint32_t marker, chunk_size = 0, RIFFsize = 0, done = 0 ;
int parsestage = 0, error, format = 0 ;
if (psf->is_pipe == 0 && psf->filelength > SF_PLATFORM_S64 (0xffffffff))
psf_log_printf (psf, "Warning : filelength > 0xffffffff. This is bad!!!!\n") ;
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, "pmj", 0, &marker, -4) ;
psf->header.indx = 0 ;
/* RIFX signifies big-endian format for all header and data to prevent
** lots of code copying here, we'll set the psf->rwf_endian flag once here,
** and never specify endian-ness for all other header ops/
*/
psf->rwf_endian = (marker == RIFF_MARKER) ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ;
while (! done)
{ size_t jump = chunk_size & 1 ;
marker = chunk_size = 0 ;
psf_binheader_readf (psf, "jm4", jump, &marker, &chunk_size) ;
if (marker == 0)
{ sf_count_t pos = psf_ftell (psf) ;
psf_log_printf (psf, "Have 0 marker at position %D (0x%x).\n", pos, pos) ;
break ;
} ;
psf_store_read_chunk_u32 (&psf->rchunks, marker, psf_ftell (psf), chunk_size) ;
switch (marker)
{ case RIFF_MARKER :
case RIFX_MARKER :
if (parsestage)
return SFE_WAV_NO_RIFF ;
parsestage |= HAVE_RIFF ;
RIFFsize = chunk_size ;
if (psf->fileoffset > 0 && psf->filelength > RIFFsize + 8)
{ /* Set file length. */
psf->filelength = RIFFsize + 8 ;
if (marker == RIFF_MARKER)
psf_log_printf (psf, "RIFF : %u\n", RIFFsize) ;
else
psf_log_printf (psf, "RIFX : %u\n", RIFFsize) ;
}
else if (psf->filelength < RIFFsize + 2 * SIGNED_SIZEOF (marker))
{ if (marker == RIFF_MARKER)
psf_log_printf (psf, "RIFF : %u (should be %D)\n", RIFFsize, psf->filelength - 2 * SIGNED_SIZEOF (marker)) ;
else
psf_log_printf (psf, "RIFX : %u (should be %D)\n", RIFFsize, psf->filelength - 2 * SIGNED_SIZEOF (marker)) ;
RIFFsize = psf->filelength - 2 * SIGNED_SIZEOF (RIFFsize) ;
}
else
{ if (marker == RIFF_MARKER)
psf_log_printf (psf, "RIFF : %u\n", RIFFsize) ;
else
psf_log_printf (psf, "RIFX : %u\n", RIFFsize) ;
} ;
psf_binheader_readf (psf, "m", &marker) ;
if (marker != WAVE_MARKER)
return SFE_WAV_NO_WAVE ;
parsestage |= HAVE_WAVE ;
psf_log_printf (psf, "WAVE\n") ;
chunk_size = 0 ;
break ;
case fmt_MARKER :
if ((parsestage & (HAVE_RIFF | HAVE_WAVE)) != (HAVE_RIFF | HAVE_WAVE))
return SFE_WAV_NO_FMT ;
/* If this file has a SECOND fmt chunk, I don't want to know about it. */
if (parsestage & HAVE_fmt)
break ;
parsestage |= HAVE_fmt ;
psf_log_printf (psf, "fmt : %d\n", chunk_size) ;
if ((error = wavlike_read_fmt_chunk (psf, chunk_size)))
return error ;
format = wav_fmt->format ;
break ;
case data_MARKER :
if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt))
return SFE_WAV_NO_DATA ;
if (psf->file.mode == SFM_RDWR && (parsestage & HAVE_other) != 0)
return SFE_RDWR_BAD_HEADER ;
parsestage |= HAVE_data ;
psf->datalength = chunk_size ;
if (psf->datalength & 1)
psf_log_printf (psf, "*** 'data' chunk should be an even number of bytes in length.\n") ;
psf->dataoffset = psf_ftell (psf) ;
if (psf->dataoffset > 0)
{ if (chunk_size == 0 && RIFFsize == 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 ;
} ;
if (psf->datalength > psf->filelength - psf->dataoffset)
{ psf_log_printf (psf, "data : %D (should be %D)\n", psf->datalength, psf->filelength - psf->dataoffset) ;
psf->datalength = psf->filelength - psf->dataoffset ;
}
else
psf_log_printf (psf, "data : %D\n", psf->datalength) ;
/* Only set dataend if there really is data at the end. */
if (psf->datalength + psf->dataoffset < psf->filelength)
psf->dataend = psf->datalength + psf->dataoffset ;
psf->datalength += chunk_size & 1 ;
chunk_size = 0 ;
} ;
if (! 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 ;
case fact_MARKER :
if ((parsestage & (HAVE_RIFF | HAVE_WAVE)) != (HAVE_RIFF | HAVE_WAVE))
return SFE_WAV_BAD_FACT ;
parsestage |= HAVE_fact ;
if ((parsestage & HAVE_fmt) != HAVE_fmt)
psf_log_printf (psf, "*** Should have 'fmt ' chunk before 'fact'\n") ;
psf_binheader_readf (psf, "4", & (fact_chunk.frames)) ;
if (chunk_size > SIGNED_SIZEOF (fact_chunk))
psf_binheader_readf (psf, "j", (int) (chunk_size - SIGNED_SIZEOF (fact_chunk))) ;
if (chunk_size)
psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
else
psf_log_printf (psf, "%M : %u (should not be zero)\n", marker, chunk_size) ;
psf_log_printf (psf, " frames : %d\n", fact_chunk.frames) ;
break ;
case PEAK_MARKER :
if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt))
return SFE_WAV_PEAK_B4_FMT ;
parsestage |= HAVE_PEAK ;
psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
if ((error = wavlike_read_peak_chunk (psf, chunk_size)) != 0)
return error ;
psf->peak_info->peak_loc = ((parsestage & HAVE_data) == 0) ? SF_PEAK_START : SF_PEAK_END ;
break ;
case cue_MARKER :
parsestage |= HAVE_other ;
{ uint32_t thisread, bytesread, cue_count, position, offset ;
int id, chunk_id, chunk_start, block_start, cue_index ;
bytesread = psf_binheader_readf (psf, "4", &cue_count) ;
psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
if (cue_count > 2500) /* 2500 is close to the largest number of cues possible because of block sizes */
{ psf_log_printf (psf, " Count : %u (skipping)\n", cue_count) ;
psf_binheader_readf (psf, "j", chunk_size - bytesread) ;
break ;
} ;
psf_log_printf (psf, " Count : %d\n", cue_count) ;
if ((psf->cues = psf_cues_alloc (cue_count)) == NULL)
return SFE_MALLOC_FAILED ;
cue_index = 0 ;
while (cue_count)
{
if ((thisread = psf_binheader_readf (psf, "e44m444", &id, &position, &chunk_id, &chunk_start, &block_start, &offset)) == 0)
break ;
bytesread += thisread ;
if (cue_index < 10) /* avoid swamping log buffer with cues */
psf_log_printf (psf, " Cue ID : %2d"
" Pos : %5u Chunk : %M"
" Chk Start : %d Blk Start : %d"
" Offset : %5d\n",
id, position, chunk_id, chunk_start, block_start, offset) ;
else if (cue_index == 10)
psf_log_printf (psf, " (Skipping)\n") ;
psf->cues->cue_points [cue_index].indx = id ;
psf->cues->cue_points [cue_index].position = position ;
psf->cues->cue_points [cue_index].fcc_chunk = chunk_id ;
psf->cues->cue_points [cue_index].chunk_start = chunk_start ;
psf->cues->cue_points [cue_index].block_start = block_start ;
psf->cues->cue_points [cue_index].sample_offset = offset ;
psf->cues->cue_points [cue_index].name [0] = '\0' ;
cue_count -- ;
cue_index ++ ;
} ;
if (bytesread != chunk_size)
{ psf_log_printf (psf, "**** Chunk size weirdness (%d != %d)\n", chunk_size, bytesread) ;
psf_binheader_readf (psf, "j", chunk_size - bytesread) ;
} ;
} ;
break ;
case smpl_MARKER :
parsestage |= HAVE_other ;
psf_log_printf (psf, "smpl : %u\n", chunk_size) ;
if ((error = wav_read_smpl_chunk (psf, chunk_size)))
return error ;
break ;
case acid_MARKER :
parsestage |= HAVE_other ;
psf_log_printf (psf, "acid : %u\n", chunk_size) ;
if ((error = wav_read_acid_chunk (psf, chunk_size)))
return error ;
break ;
case INFO_MARKER :
case LIST_MARKER :
parsestage |= HAVE_other ;
if ((error = wavlike_subchunk_parse (psf, marker, chunk_size)) != 0)
return error ;
break ;
case bext_MARKER :
/*
The 'bext' chunk can actually be updated, so don't need to set this.
parsestage |= HAVE_other ;
*/
if ((error = wavlike_read_bext_chunk (psf, chunk_size)))
return error ;
break ;
case PAD_MARKER :
/*
We can eat into a 'PAD ' chunk if we need to.
parsestage |= HAVE_other ;
*/
psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
psf_binheader_readf (psf, "j", chunk_size) ;
break ;
case cart_MARKER:
if ((error = wavlike_read_cart_chunk (psf, chunk_size)))
return error ;
break ;
case iXML_MARKER : /* See http://en.wikipedia.org/wiki/IXML */
case strc_MARKER : /* Multiple of 32 bytes. */
case afsp_MARKER :
case clm_MARKER :
case elmo_MARKER :
case levl_MARKER :
case plst_MARKER :
case minf_MARKER :
case elm1_MARKER :
case regn_MARKER :
case ovwf_MARKER :
case inst_MARKER :
case AFAn_MARKER :
case umid_MARKER :
case SyLp_MARKER :
case Cr8r_MARKER :
case JUNK_MARKER :
case PMX_MARKER :
case DISP_MARKER :
case MEXT_MARKER :
case FLLR_MARKER :
psf_log_printf (psf, "%M : %u\n", marker, chunk_size) ;
psf_binheader_readf (psf, "j", chunk_size) ;
break ;
default :
if (chunk_size >= 0xffff0000)
{ done = SF_TRUE ;
psf_log_printf (psf, "*** Unknown chunk marker (%X) at position %D with length %u. Exiting parser.\n", marker, psf_ftell (psf) - 8, chunk_size) ;
break ;
} ;
if (psf_isprint ((marker >> 24) & 0xFF) && psf_isprint ((marker >> 16) & 0xFF)
&& psf_isprint ((marker >> 8) & 0xFF) && psf_isprint (marker & 0xFF))
{ psf_log_printf (psf, "*** %M : %u (unknown marker)\n", marker, chunk_size) ;
psf_binheader_readf (psf, "j", chunk_size) ;
break ;
} ;
if (psf_ftell (psf) & 0x03)
{ psf_log_printf (psf, " Unknown chunk marker at position %D. Resynching.\n", psf_ftell (psf) - 8) ;
psf_binheader_readf (psf, "j", -3) ;
/* File is too messed up so we prevent editing in RDWR mode here. */
parsestage |= HAVE_other ;
break ;
} ;
psf_log_printf (psf, "*** Unknown chunk marker (%X) at position %D. Exiting parser.\n", marker, psf_ftell (psf) - 8) ;
done = SF_TRUE ;
break ;
} ; /* switch (marker) */
if (chunk_size >= psf->filelength)
{ psf_log_printf (psf, "*** Chunk size %u > file length %D. Exiting parser.\n", chunk_size, psf->filelength) ;
break ;
} ;
if (! psf->sf.seekable && (parsestage & HAVE_data))
break ;
if (psf_ftell (psf) >= psf->filelength - SIGNED_SIZEOF (chunk_size))
{ psf_log_printf (psf, "End\n") ;
break ;
} ;
} ; /* while (1) */
if (psf->dataoffset <= 0)
return SFE_WAV_NO_DATA ;
if (psf->sf.channels < 1)
return SFE_CHANNEL_COUNT_ZERO ;
if (psf->sf.channels > SF_MAX_CHANNELS)
return SFE_CHANNEL_COUNT ;
if (format != WAVE_FORMAT_PCM && (parsestage & HAVE_fact) == 0)
psf_log_printf (psf, "**** All non-PCM format files should have a 'fact' chunk.\n") ;
/* 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 ;
} ;
switch (format)
{ case WAVE_FORMAT_EXTENSIBLE :
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_NMS_VBXADPCM :
*blockalign = wav_fmt->min.blockalign ;
*framesperblock = 160 ;
switch (wav_fmt->min.bitwidth)
{ case 2 :
psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_NMS_ADPCM_16 ;
break ;
case 3 :
psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_NMS_ADPCM_24 ;
break ;
case 4 :
psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_NMS_ADPCM_32 ;
break ;
default :
return SFE_UNIMPLEMENTED ;
}
break ;
case WAVE_FORMAT_PCM :
psf->sf.format = SF_FORMAT_WAV | u_bitwidth_to_subformat (psf->bytewidth * 8) ;
break ;
case WAVE_FORMAT_MULAW :
case IBM_FORMAT_MULAW :
psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_ULAW) ;
break ;
case WAVE_FORMAT_ALAW :
case IBM_FORMAT_ALAW :
psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_ALAW) ;
break ;
case WAVE_FORMAT_MS_ADPCM :
psf->sf.format = (SF_FORMAT_WAV | 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_WAV | SF_FORMAT_IMA_ADPCM) ;
*blockalign = wav_fmt->ima.blockalign ;
*framesperblock = wav_fmt->ima.samplesperblock ;
break ;
case WAVE_FORMAT_GSM610 :
psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_GSM610) ;
break ;
case WAVE_FORMAT_IEEE_FLOAT :
psf->sf.format = SF_FORMAT_WAV ;
psf->sf.format |= (psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT ;
break ;
case WAVE_FORMAT_G721_ADPCM :
psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_G721_32 ;
break ;
default : return SFE_UNIMPLEMENTED ;
} ;
if (wpriv->fmt_is_broken)
wavlike_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 ;
} /* wav_read_header */
static int
wav_write_fmt_chunk (SF_PRIVATE *psf)
{ int subformat, fmt_size, add_fact_chunk = 0 ;
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 = 2 + 2 + 4 + 4 + 2 + 2 ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_PCM), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
/* fmt : blockalign, bitwidth */
psf_binheader_writef (psf, "22", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (psf->bytewidth * 8)) ;
break ;
case SF_FORMAT_FLOAT :
case SF_FORMAT_DOUBLE :
fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_IEEE_FLOAT), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
/* fmt : blockalign, bitwidth */
psf_binheader_writef (psf, "22", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (psf->bytewidth * 8)) ;
add_fact_chunk = SF_TRUE ;
break ;
case SF_FORMAT_ULAW :
fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_MULAW), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
/* fmt : blockalign, bitwidth, extrabytes */
psf_binheader_writef (psf, "222", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (8), BHW2 (0)) ;
add_fact_chunk = SF_TRUE ;
break ;
case SF_FORMAT_ALAW :
fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_ALAW), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
/* fmt : blockalign, bitwidth, extrabytes */
psf_binheader_writef (psf, "222", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (8), BHW2 (0)) ;
add_fact_chunk = SF_TRUE ;
break ;
/* Lite remove start */
case SF_FORMAT_IMA_ADPCM :
{ int blockalign, framesperblock, bytespersec ;
blockalign = wavlike_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 = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
/* fmt : size, WAV format type, channels, samplerate, bytespersec */
psf_binheader_writef (psf, "42244", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_IMA_ADPCM),
BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate), BHW4 (bytespersec)) ;
/* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
psf_binheader_writef (psf, "2222", BHW2 (blockalign), BHW2 (4), BHW2 (2), BHW2 (framesperblock)) ;
} ;
add_fact_chunk = SF_TRUE ;
break ;
case SF_FORMAT_MS_ADPCM :
{ int blockalign, framesperblock, bytespersec, extrabytes ;
blockalign = wavlike_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 + WAVLIKE_MSADPCM_ADAPT_COEFF_COUNT * (2 + 2) ;
fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + extrabytes ;
/* fmt : size, WAV format type, channels. */
psf_binheader_writef (psf, "422", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_MS_ADPCM), BHW2 (psf->sf.channels)) ;
/* fmt : samplerate, bytespersec. */
psf_binheader_writef (psf, "44", BHW4 (psf->sf.samplerate), BHW4 (bytespersec)) ;
/* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
psf_binheader_writef (psf, "22222", BHW2 (blockalign), BHW2 (4), BHW2 (extrabytes), BHW2 (framesperblock), BHW2 (7)) ;
wavlike_msadpcm_write_adapt_coeffs (psf) ;
} ;
add_fact_chunk = SF_TRUE ;
break ;
case SF_FORMAT_G721_32 :
/* fmt chunk. */
fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
/* fmt : size, WAV format type, channels, samplerate, bytespersec */
psf_binheader_writef (psf, "42244", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_G721_ADPCM),
BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate), BHW4 (psf->sf.samplerate * psf->sf.channels / 2)) ;
/* fmt : blockalign, bitwidth, extrabytes, auxblocksize. */
psf_binheader_writef (psf, "2222", BHW2 (64), BHW2 (4), BHW2 (2), BHW2 (0)) ;
add_fact_chunk = SF_TRUE ;
break ;
case SF_FORMAT_NMS_ADPCM_16 :
case SF_FORMAT_NMS_ADPCM_24 :
case SF_FORMAT_NMS_ADPCM_32 :
{ int bytespersec, blockalign, bitwidth ;
bitwidth = subformat == SF_FORMAT_NMS_ADPCM_16 ? 2 : subformat == SF_FORMAT_NMS_ADPCM_24 ? 3 : 4 ;
blockalign = 20 * bitwidth + 2 ;
bytespersec = psf->sf.samplerate * blockalign / 160 ;
/* fmt chunk. */
fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ;
/* fmt : format, channels, samplerate */
psf_binheader_writef (psf, "4224", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_NMS_VBXADPCM),
BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
/* fmt : bytespersec, blockalign, bitwidth */
psf_binheader_writef (psf, "422", BHW4 (bytespersec), BHW2 (blockalign), BHW2 (bitwidth)) ;
add_fact_chunk = SF_TRUE ;
break ;
}
/* Lite remove end */
case SF_FORMAT_GSM610 :
{ int blockalign, framesperblock, bytespersec ;
blockalign = WAVLIKE_GSM610_BLOCKSIZE ;
framesperblock = WAVLIKE_GSM610_SAMPLES ;
bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ;
/* fmt chunk. */
fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ;
/* fmt : size, WAV format type, channels. */
psf_binheader_writef (psf, "422", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_GSM610), BHW2 (psf->sf.channels)) ;
/* fmt : samplerate, bytespersec. */
psf_binheader_writef (psf, "44", BHW4 (psf->sf.samplerate), BHW4 (bytespersec)) ;
/* fmt : blockalign, bitwidth, extrabytes, framesperblock. */
psf_binheader_writef (psf, "2222", BHW2 (blockalign), BHW2 (0), BHW2 (2), BHW2 (framesperblock)) ;
} ;
add_fact_chunk = SF_TRUE ;
break ;
default : return SFE_UNIMPLEMENTED ;
} ;
if (add_fact_chunk)
psf_binheader_writef (psf, "tm48", BHWm (fact_MARKER), BHW4 (4), BHW8 (psf->sf.frames)) ;
return 0 ;
} /* wav_write_fmt_chunk */
static int
wavex_write_fmt_chunk (SF_PRIVATE *psf)
{ WAVLIKE_PRIVATE *wpriv ;
int subformat, fmt_size ;
if ((wpriv = psf->container_data) == NULL)
return SFE_INTERNAL ;
subformat = SF_CODEC (psf->sf.format) ;
/* 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", BHW4 (fmt_size), BHW2 (WAVE_FORMAT_EXTENSIBLE), BHW2 (psf->sf.channels), BHW4 (psf->sf.samplerate)) ;
/* fmt : bytespersec */
psf_binheader_writef (psf, "4", BHW4 (psf->sf.samplerate * psf->bytewidth * psf->sf.channels)) ;
/* fmt : blockalign, bitwidth */
psf_binheader_writef (psf, "22", BHW2 (psf->bytewidth * psf->sf.channels), BHW2 (psf->bytewidth * 8)) ;
/* cbSize 22 is sizeof (WAVEFORMATEXTENSIBLE) - sizeof (WAVEFORMATEX) */
psf_binheader_writef (psf, "2", BHW2 (22)) ;
/* wValidBitsPerSample, for our use same as bitwidth as we use it fully */
psf_binheader_writef (psf, "2", BHW2 (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", BHW4 (0)) ;
else if (wpriv->wavex_channelmask != 0)
psf_binheader_writef (psf, "4", BHW4 (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", BHW4 (0x4)) ;
break ;
case 2 : /* front left and right */
psf_binheader_writef (psf, "4", BHW4 (0x1 | 0x2)) ;
break ;
case 4 : /* Quad */
psf_binheader_writef (psf, "4", BHW4 (0x1 | 0x2 | 0x10 | 0x20)) ;
break ;
case 6 : /* 5.1 */
psf_binheader_writef (psf, "4", BHW4 (0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20)) ;
break ;
case 8 : /* 7.1 */
psf_binheader_writef (psf, "4", BHW4 (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", BHW4 (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 :
wavlike_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 :
wavlike_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 :
wavlike_write_guid (psf, &MSGUID_SUBTYPE_MULAW) ;
break ;
case SF_FORMAT_ALAW :
wavlike_write_guid (psf, &MSGUID_SUBTYPE_ALAW) ;
break ;
#if 0
/* This is dead code due to return in previous switch statement. */
case SF_FORMAT_MS_ADPCM : /* todo, GUID exists */
wavlike_write_guid (psf, &MSGUID_SUBTYPE_MS_ADPCM) ;
break ;
return SFE_UNIMPLEMENTED ;
#endif
default : return SFE_UNIMPLEMENTED ;
} ;
psf_binheader_writef (psf, "tm48", BHWm (fact_MARKER), BHW4 (4), BHW8 (psf->sf.frames)) ;
return 0 ;
} /* wavex_write_fmt_chunk */
static int
wav_write_header (SF_PRIVATE *psf, int calc_length)
{ sf_count_t current ;
int error, has_data = SF_FALSE ;
current = psf_ftell (psf) ;
if (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 ;
else if (psf->bytewidth > 0 && psf->sf.seekable == SF_TRUE)
psf->datalength = psf->sf.frames * psf->bytewidth * psf->sf.channels ;
} ;
/* Reset the current header length to zero. */
psf->header.ptr [0] = 0 ;
psf->header.indx = 0 ;
psf_fseek (psf, 0, SEEK_SET) ;
/*
** RIFX signifies big-endian format for all header and data.
** To prevent lots of code copying here, we'll set the psf->rwf_endian flag
** once here, and never specify endian-ness for all other header operations.
*/
/* RIFF/RIFX marker, length, WAVE and 'fmt ' markers. */
if (psf->endian == SF_ENDIAN_LITTLE)
psf_binheader_writef (psf, "etm8", BHWm (RIFF_MARKER), BHW8 ((psf->filelength < 8) ? 8 : psf->filelength - 8)) ;
else
psf_binheader_writef (psf, "Etm8", BHWm (RIFX_MARKER), BHW8 ((psf->filelength < 8) ? 8 : psf->filelength - 8)) ;
/* WAVE and 'fmt ' markers. */
psf_binheader_writef (psf, "mm", BHWm (WAVE_MARKER), BHWm (fmt_MARKER)) ;
/* Write the 'fmt ' chunk. */
switch (SF_CONTAINER (psf->sf.format))
{ case SF_FORMAT_WAV :
if ((error = wav_write_fmt_chunk (psf)) != 0)
return error ;
break ;
case SF_FORMAT_WAVEX :
if ((error = wavex_write_fmt_chunk (psf)) != 0)
return error ;
break ;
default :
return SFE_UNIMPLEMENTED ;
} ;
/* The LIST/INFO chunk. */
if (psf->strings.flags & SF_STR_LOCATE_START)
wavlike_write_strings (psf, SF_STR_LOCATE_START) ;
if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_START)
wavlike_write_peak_chunk (psf) ;
if (psf->broadcast_16k != NULL)
wavlike_write_bext_chunk (psf) ;
if (psf->cart_16k != NULL)
wavlike_write_cart_chunk (psf) ;
if (psf->cues != NULL)
{ uint32_t k ;
psf_binheader_writef (psf, "em44", BHWm (cue_MARKER), BHW4 (4 + psf->cues->cue_count * 6 * 4), BHW4 (psf->cues->cue_count)) ;
for (k = 0 ; k < psf->cues->cue_count ; k++)
psf_binheader_writef (psf, "e44m444", BHW4 (psf->cues->cue_points [k].indx), BHW4 (psf->cues->cue_points [k].position),
BHWm (psf->cues->cue_points [k].fcc_chunk), BHW4 (psf->cues->cue_points [k].chunk_start),
BHW4 (psf->cues->cue_points [k].block_start), BHW4 (psf->cues->cue_points [k].sample_offset)) ;
} ;
if (psf->instrument != NULL)
{ int tmp ;
double dtune = (double) (0x40000000) / 25.0 ;
psf_binheader_writef (psf, "m4", BHWm (smpl_MARKER), BHW4 (9 * 4 + psf->instrument->loop_count * 6 * 4)) ;
psf_binheader_writef (psf, "44", BHW4 (0), BHW4 (0)) ; /* Manufacturer zero is everyone */
tmp = (int) (1.0e9 / psf->sf.samplerate) ; /* Sample period in nano seconds */
psf_binheader_writef (psf, "44", BHW4 (tmp), BHW4 (psf->instrument->basenote)) ;
tmp = (uint32_t) (psf->instrument->detune * dtune + 0.5) ;
psf_binheader_writef (psf, "4", BHW4 (tmp)) ;
psf_binheader_writef (psf, "44", BHW4 (0), BHW4 (0)) ; /* SMTPE format */
psf_binheader_writef (psf, "44", BHW4 (psf->instrument->loop_count), BHW4 (0)) ;
/* Make sure we don't read past the loops array end. */
if (psf->instrument->loop_count > ARRAY_LEN (psf->instrument->loops))
psf->instrument->loop_count = ARRAY_LEN (psf->instrument->loops) ;
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", BHW4 (tmp), BHW4 (type)) ;
psf_binheader_writef (psf, "44", BHW4 (psf->instrument->loops [tmp].start), BHW4 (psf->instrument->loops [tmp].end - 1)) ;
psf_binheader_writef (psf, "44", BHW4 (0), BHW4 (psf->instrument->loops [tmp].count)) ;
} ;
} ;
/* Write custom headers. */
if (psf->wchunks.used > 0)
wavlike_write_custom_chunks (psf) ;
if (psf->header.indx + 16 < psf->dataoffset)
{ /* Add PAD data if necessary. */
size_t k = psf->dataoffset - (psf->header.indx + 16) ;
psf_binheader_writef (psf, "m4z", BHWm (PAD_MARKER), BHW4 (k), BHWz (k)) ;
} ;
psf_binheader_writef (psf, "tm8", BHWm (data_MARKER), BHW8 (psf->datalength)) ;
psf_fwrite (psf->header.ptr, psf->header.indx, 1, psf) ;
if (psf->error)
return psf->error ;
if (has_data && psf->dataoffset != psf->header.indx)
{ psf_log_printf (psf, "Oooops : has_data && psf->dataoffset != psf->header.indx\n") ;
return psf->error = SFE_INTERNAL ;
} ;
psf->dataoffset = psf->header.indx ;
if (! has_data)
psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
else if (current > 0)
psf_fseek (psf, current, SEEK_SET) ;
return psf->error ;
} /* wav_write_header */
static int
wav_write_tailer (SF_PRIVATE *psf)
{
/* Reset the current header buffer length to zero. */
psf->header.ptr [0] = 0 ;
psf->header.indx = 0 ;
if (psf->bytewidth > 0 && psf->sf.seekable == SF_TRUE)
{ psf->datalength = psf->sf.frames * psf->bytewidth * psf->sf.channels ;
psf->dataend = psf->dataoffset + psf->datalength ;
} ;
if (psf->dataend > 0)
psf_fseek (psf, psf->dataend, SEEK_SET) ;
else
psf->dataend = psf_fseek (psf, 0, SEEK_END) ;
if (psf->dataend & 1)
psf_binheader_writef (psf, "z", BHWz (1)) ;
/* Add a PEAK chunk if requested. */
if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_END)
wavlike_write_peak_chunk (psf) ;
if (psf->strings.flags & SF_STR_LOCATE_END)
wavlike_write_strings (psf, SF_STR_LOCATE_END) ;
/* Write the tailer. */
if (psf->header.indx > 0)
psf_fwrite (psf->header.ptr, psf->header.indx, 1, psf) ;
return 0 ;
} /* wav_write_tailer */
static int
wav_close (SF_PRIVATE *psf)
{
if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
{ wav_write_tailer (psf) ;
if (psf->file.mode == SFM_RDWR)
{ sf_count_t current = psf_ftell (psf) ;
/*
** If the mode is RDWR and the current position is less than the
** filelength, truncate the file.
*/
if (current < psf->filelength)
{ psf_ftruncate (psf, current) ;
psf->filelength = current ;
} ;
} ;
psf->write_header (psf, SF_TRUE) ;
} ;
return 0 ;
} /* wav_close */
static int
wav_command (SF_PRIVATE *psf, int command, void * UNUSED (data), int datasize)
{ WAVLIKE_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 = wavlike_gen_channel_mask (psf->channel_map, psf->sf.channels) ;
return (wpriv->wavex_channelmask != 0) ;
default :
break ;
} ;
return 0 ;
} /* wav_command */
static int
wav_read_smpl_chunk (SF_PRIVATE *psf, uint32_t chunklen)
{ char buffer [512] ;
uint32_t thisread, bytesread = 0, dword, sampler_data, loop_count ;
uint32_t note, pitch, start, end, type = -1, count ;
int j, k ;
chunklen += (chunklen & 1) ;
bytesread += psf_binheader_readf (psf, "4", &dword) ;
psf_log_printf (psf, " Manufacturer : %X\n", dword) ;
bytesread += psf_binheader_readf (psf, "4", &dword) ;
psf_log_printf (psf, " Product : %u\n", dword) ;
bytesread += psf_binheader_readf (psf, "4", &dword) ;
psf_log_printf (psf, " Period : %u nsec\n", dword) ;
bytesread += psf_binheader_readf (psf, "4", &note) ;
psf_log_printf (psf, " Midi Note : %u\n", note) ;
bytesread += psf_binheader_readf (psf, "4", &pitch) ;
if (pitch != 0)
{ snprintf (buffer, sizeof (buffer), "%f",
(1.0 * 0x80000000) / ((uint32_t) pitch)) ;
psf_log_printf (psf, " Pitch Fract. : %s\n", buffer) ;
}
else
psf_log_printf (psf, " Pitch Fract. : 0\n") ;
bytesread += psf_binheader_readf (psf, "4", &dword) ;
psf_log_printf (psf, " SMPTE Format : %u\n", dword) ;
bytesread += psf_binheader_readf (psf, "4", &dword) ;
snprintf (buffer, sizeof (buffer), "%02d:%02d:%02d %02d",
(dword >> 24) & 0x7F, (dword >> 16) & 0x7F, (dword >> 8) & 0x7F, dword & 0x7F) ;
psf_log_printf (psf, " SMPTE Offset : %s\n", buffer) ;
bytesread += psf_binheader_readf (psf, "4", &loop_count) ;
psf_log_printf (psf, " Loop Count : %u\n", loop_count) ;
if (loop_count == 0 && chunklen == bytesread)
return 0 ;
/* Sampler Data holds the number of data bytes after the CUE chunks which
** is not actually CUE data. Display value after CUE data.
*/
bytesread += psf_binheader_readf (psf, "4", &sampler_data) ;
if ((psf->instrument = psf_instrument_alloc ()) == NULL)
return SFE_MALLOC_FAILED ;
psf->instrument->loop_count = loop_count ;
for (j = 0 ; loop_count > 0 && chunklen - bytesread >= 24 ; j ++)
{ if ((thisread = psf_binheader_readf (psf, "4", &dword)) == 0)
break ;
bytesread += thisread ;
psf_log_printf (psf, " Cue ID : %2u", dword) ;
bytesread += psf_binheader_readf (psf, "4", &type) ;
psf_log_printf (psf, " Type : %2u", type) ;
bytesread += psf_binheader_readf (psf, "4", &start) ;
psf_log_printf (psf, " Start : %5u", start) ;
bytesread += psf_binheader_readf (psf, "4", &end) ;
psf_log_printf (psf, " End : %5u", end) ;
bytesread += psf_binheader_readf (psf, "4", &dword) ;
psf_log_printf (psf, " Fraction : %5u", dword) ;
bytesread += psf_binheader_readf (psf, "4", &count) ;
psf_log_printf (psf, " Count : %5u\n", count) ;
if (j < ARRAY_LEN (psf->instrument->loops))
{ psf->instrument->loops [j].start = start ;
psf->instrument->loops [j].end = end + 1 ;
psf->instrument->loops [j].count = count ;
switch (type)
{ case 0 :
psf->instrument->loops [j].mode = SF_LOOP_FORWARD ;
break ;
case 1 :
psf->instrument->loops [j].mode = SF_LOOP_ALTERNATING ;
break ;
case 2 :
psf->instrument->loops [j].mode = SF_LOOP_BACKWARD ;
break ;
default:
psf->instrument->loops [j].mode = SF_LOOP_NONE ;
break ;
} ;
} ;
loop_count -- ;
} ;
if (chunklen - bytesread == 0)
{ if (sampler_data != 0)
psf_log_printf (psf, " Sampler Data : %u (should be 0)\n", sampler_data) ;
else
psf_log_printf (psf, " Sampler Data : %u\n", sampler_data) ;
}
else
{ if (sampler_data != chunklen - bytesread)
{ psf_log_printf (psf, " Sampler Data : %u (should have been %u)\n", sampler_data, chunklen - bytesread) ;
sampler_data = chunklen - bytesread ;
}
else
psf_log_printf (psf, " Sampler Data : %u\n", sampler_data) ;
psf_log_printf (psf, " ") ;
for (k = 0 ; k < (int) sampler_data ; k++)
{ char ch ;
if (k > 0 && (k % 20) == 0)
psf_log_printf (psf, "\n ") ;
if ((thisread = psf_binheader_readf (psf, "1", &ch)) == 0)
break ;
bytesread += thisread ;
psf_log_printf (psf, "%02X ", ch & 0xFF) ;
} ;
psf_log_printf (psf, "\n") ;
} ;
psf->instrument->basenote = note ;
psf->instrument->detune = (int8_t) (pitch / (0x40000000 / 25.0) + 0.5) ;
psf->instrument->gain = 1 ;
psf->instrument->velocity_lo = psf->instrument->key_lo = 0 ;
psf->instrument->velocity_hi = psf->instrument->key_hi = 127 ;
return 0 ;
} /* wav_read_smpl_chunk */
/*
** The acid chunk goes a little something like this:
**
** 4 bytes 'acid'
** 4 bytes (int) length of chunk starting at next byte
**
** 4 bytes (int) type of file:
** this appears to be a bit mask,however some combinations
** are probably impossible and/or qualified as "errors"
**
** 0x01 On: One Shot Off: Loop
** 0x02 On: Root note is Set Off: No root
** 0x04 On: Stretch is On, Off: Strech is OFF
** 0x08 On: Disk Based Off: Ram based
** 0x10 On: ?????????? Off: ????????? (Acidizer puts that ON)
**
** 2 bytes (short) root note
** if type 0x10 is OFF : [C,C#,(...),B] -> [0x30 to 0x3B]
** if type 0x10 is ON : [C,C#,(...),B] -> [0x3C to 0x47]
** (both types fit on same MIDI pitch albeit different octaves, so who cares)
**
** 2 bytes (short) ??? always set to 0x8000
** 4 bytes (float) ??? seems to be always 0
** 4 bytes (int) number of beats
** 2 bytes (short) meter denominator //always 4 in SF/ACID
** 2 bytes (short) meter numerator //always 4 in SF/ACID
** //are we sure about the order?? usually its num/denom
** 4 bytes (float) tempo
**
*/
static int
wav_read_acid_chunk (SF_PRIVATE *psf, uint32_t chunklen)
{ char buffer [512] ;
uint32_t bytesread = 0 ;
int beats, flags ;
short rootnote, q1, meter_denom, meter_numer ;
float q2, tempo ;
chunklen += (chunklen & 1) ;
bytesread += psf_binheader_readf (psf, "422f", &flags, &rootnote, &q1, &q2) ;
snprintf (buffer, sizeof (buffer), "%f", q2) ;
psf_log_printf (psf, " Flags : 0x%04x (%s,%s,%s,%s,%s)\n", flags,
(flags & 0x01) ? "OneShot" : "Loop",
(flags & 0x02) ? "RootNoteValid" : "RootNoteInvalid",
(flags & 0x04) ? "StretchOn" : "StretchOff",
(flags & 0x08) ? "DiskBased" : "RAMBased",
(flags & 0x10) ? "??On" : "??Off") ;
psf_log_printf (psf, " Root note : 0x%x\n ???? : 0x%04x\n ???? : %s\n",
rootnote, q1, buffer) ;
bytesread += psf_binheader_readf (psf, "422f", &beats, &meter_denom, &meter_numer, &tempo) ;
snprintf (buffer, sizeof (buffer), "%f", tempo) ;
psf_log_printf (psf, " Beats : %d\n Meter : %d/%d\n Tempo : %s\n",
beats, meter_numer, meter_denom, buffer) ;
psf_binheader_readf (psf, "j", chunklen - bytesread) ;
if ((psf->loop_info = calloc (1, sizeof (SF_LOOP_INFO))) == NULL)
return SFE_MALLOC_FAILED ;
psf->loop_info->time_sig_num = meter_numer ;
psf->loop_info->time_sig_den = meter_denom ;
psf->loop_info->loop_mode = (flags & 0x01) ? SF_LOOP_NONE : SF_LOOP_FORWARD ;
psf->loop_info->num_beats = beats ;
psf->loop_info->bpm = tempo ;
psf->loop_info->root_key = (flags & 0x02) ? rootnote : -1 ;
return 0 ;
} /* wav_read_acid_chunk */
/*==============================================================================
*/
static int
wav_set_chunk (SF_PRIVATE *psf, const SF_CHUNK_INFO * chunk_info)
{ return psf_save_write_chunk (&psf->wchunks, chunk_info) ;
} /* wav_set_chunk */
static SF_CHUNK_ITERATOR *
wav_next_chunk_iterator (SF_PRIVATE *psf, SF_CHUNK_ITERATOR * iterator)
{ return psf_next_chunk_iterator (&psf->rchunks, iterator) ;
} /* wav_next_chunk_iterator */
static int
wav_get_chunk_size (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info)
{ int indx ;
if ((indx = psf_find_read_chunk_iterator (&psf->rchunks, iterator)) < 0)
return SFE_UNKNOWN_CHUNK ;
chunk_info->datalen = psf->rchunks.chunks [indx].len ;
return SFE_NO_ERROR ;
} /* wav_get_chunk_size */
static int
wav_get_chunk_data (SF_PRIVATE *psf, const SF_CHUNK_ITERATOR * iterator, SF_CHUNK_INFO * chunk_info)
{ int indx ;
sf_count_t pos ;
if ((indx = psf_find_read_chunk_iterator (&psf->rchunks, iterator)) < 0)
return SFE_UNKNOWN_CHUNK ;
if (chunk_info->data == NULL)
return SFE_BAD_CHUNK_DATA_PTR ;
chunk_info->id_size = psf->rchunks.chunks [indx].id_size ;
memcpy (chunk_info->id, psf->rchunks.chunks [indx].id, sizeof (chunk_info->id) / sizeof (*chunk_info->id)) ;
pos = psf_ftell (psf) ;
psf_fseek (psf, psf->rchunks.chunks [indx].offset, SEEK_SET) ;
psf_fread (chunk_info->data, SF_MIN (chunk_info->datalen, psf->rchunks.chunks [indx].len), 1, psf) ;
psf_fseek (psf, pos, SEEK_SET) ;
return SFE_NO_ERROR ;
} /* wav_get_chunk_data */
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