caf.c
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上传日期:2022-01-05
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文件大小:19k
- /*
- ** Copyright (C) 2005-2009 Erik de Castro Lopo <erikd@mega-nerd.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 <math.h>
- #include <inttypes.h>
- #include "sndfile.h"
- #include "sfendian.h"
- #include "common.h"
- #include "chanmap.h"
- /*------------------------------------------------------------------------------
- ** Macros to handle big/little endian issues.
- */
- #define aac_MARKER MAKE_MARKER ('a', 'a', 'c', ' ')
- #define alac_MARKER MAKE_MARKER ('a', 'l', 'a', 'c')
- #define alaw_MARKER MAKE_MARKER ('a', 'l', 'a', 'w')
- #define caff_MARKER MAKE_MARKER ('c', 'a', 'f', 'f')
- #define chan_MARKER MAKE_MARKER ('c', 'h', 'a', 'n')
- #define data_MARKER MAKE_MARKER ('d', 'a', 't', 'a')
- #define desc_MARKER MAKE_MARKER ('d', 'e', 's', 'c')
- #define edct_MARKER MAKE_MARKER ('e', 'd', 'c', 't')
- #define free_MARKER MAKE_MARKER ('f', 'r', 'e', 'e')
- #define ima4_MARKER MAKE_MARKER ('i', 'm', 'a', '4')
- #define info_MARKER MAKE_MARKER ('i', 'n', 'f', 'o')
- #define inst_MARKER MAKE_MARKER ('i', 'n', 's', 't')
- #define kuki_MARKER MAKE_MARKER ('k', 'u', 'k', 'i')
- #define lpcm_MARKER MAKE_MARKER ('l', 'p', 'c', 'm')
- #define mark_MARKER MAKE_MARKER ('m', 'a', 'r', 'k')
- #define midi_MARKER MAKE_MARKER ('m', 'i', 'd', 'i')
- #define mp1_MARKER MAKE_MARKER ('.', 'm', 'p', '1')
- #define mp2_MARKER MAKE_MARKER ('.', 'm', 'p', '2')
- #define mp3_MARKER MAKE_MARKER ('.', 'm', 'p', '3')
- #define ovvw_MARKER MAKE_MARKER ('o', 'v', 'v', 'w')
- #define pakt_MARKER MAKE_MARKER ('p', 'a', 'k', 't')
- #define peak_MARKER MAKE_MARKER ('p', 'e', 'a', 'k')
- #define regn_MARKER MAKE_MARKER ('r', 'e', 'g', 'n')
- #define strg_MARKER MAKE_MARKER ('s', 't', 'r', 'g')
- #define umid_MARKER MAKE_MARKER ('u', 'm', 'i', 'd')
- #define uuid_MARKER MAKE_MARKER ('u', 'u', 'i', 'd')
- #define ulaw_MARKER MAKE_MARKER ('u', 'l', 'a', 'w')
- #define MAC3_MARKER MAKE_MARKER ('M', 'A', 'C', '3')
- #define MAC6_MARKER MAKE_MARKER ('M', 'A', 'C', '6')
- #define CAF_PEAK_CHUNK_SIZE(ch) ((int) (sizeof (int) + ch * (sizeof (float) + 8)))
- #define SFE_CAF_NOT_CAF 666
- #define SFE_CAF_NO_DESC 667
- #define SFE_CAF_BAD_PEAK 668
- /*------------------------------------------------------------------------------
- ** Typedefs.
- */
- typedef struct
- { unsigned char srate [8] ;
- unsigned int fmt_id ;
- unsigned int fmt_flags ;
- unsigned int pkt_bytes ;
- unsigned int pkt_frames ;
- unsigned int channels_per_frame ;
- unsigned int bits_per_chan ;
- } DESC_CHUNK ;
- typedef struct
- { int chanmap_tag ;
- } CAF_PRIVATE ;
- /*------------------------------------------------------------------------------
- ** Private static functions.
- */
- static int caf_close (SF_PRIVATE *psf) ;
- static int caf_read_header (SF_PRIVATE *psf) ;
- static int caf_write_header (SF_PRIVATE *psf, int calc_length) ;
- static int caf_command (SF_PRIVATE *psf, int command, void *data, int datasize) ;
- static int caf_read_chanmap (SF_PRIVATE * psf, sf_count_t chunk_size) ;
- /*------------------------------------------------------------------------------
- ** Public function.
- */
- int
- caf_open (SF_PRIVATE *psf)
- { int subformat, format, error = 0 ;
- if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0))
- { if ((error = caf_read_header (psf)))
- return error ;
- } ;
- subformat = SF_CODEC (psf->sf.format) ;
- if ((psf->container_data = calloc (1, sizeof (CAF_PRIVATE))) == NULL)
- return SFE_MALLOC_FAILED ;
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- { if (psf->is_pipe)
- return SFE_NO_PIPE_WRITE ;
- format = SF_CONTAINER (psf->sf.format) ;
- if (format != SF_FORMAT_CAF)
- return SFE_BAD_OPEN_FORMAT ;
- psf->blockwidth = psf->bytewidth * psf->sf.channels ;
- if (psf->file.mode != SFM_RDWR || psf->filelength < 44)
- { psf->filelength = 0 ;
- psf->datalength = 0 ;
- psf->dataoffset = 0 ;
- psf->sf.frames = 0 ;
- } ;
- psf->str_flags = SF_STR_ALLOW_START ;
- /*
- ** 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 ;
- } ;
- if ((error = caf_write_header (psf, SF_FALSE)) != 0)
- return error ;
- psf->write_header = caf_write_header ;
- } ;
- psf->container_close = caf_close ;
- psf->command = caf_command ;
- switch (subformat)
- { case SF_FORMAT_PCM_S8 :
- 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_UNSUPPORTED_ENCODING ;
- } ;
- return error ;
- } /* caf_open */
- static int
- caf_close (SF_PRIVATE *psf)
- {
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- caf_write_header (psf, SF_TRUE) ;
- return 0 ;
- } /* caf_close */
- static int
- caf_command (SF_PRIVATE * psf, int command, void * UNUSED (data), int UNUSED (datasize))
- { CAF_PRIVATE *pcaf ;
- if ((pcaf = psf->container_data) == NULL)
- return SFE_INTERNAL ;
- switch (command)
- { case SFC_SET_CHANNEL_MAP_INFO :
- pcaf->chanmap_tag = aiff_caf_find_channel_layout_tag (psf->channel_map, psf->sf.channels) ;
- return (pcaf->chanmap_tag != 0) ;
- default :
- break ;
- } ;
- return 0 ;
- } /* caf_command */
- /*------------------------------------------------------------------------------
- */
- static int
- decode_desc_chunk (SF_PRIVATE *psf, const DESC_CHUNK *desc)
- { int format ;
- psf->sf.channels = desc->channels_per_frame ;
- format = SF_FORMAT_CAF | (psf->endian == SF_ENDIAN_LITTLE ? SF_ENDIAN_LITTLE : 0) ;
- if (desc->fmt_id == lpcm_MARKER && desc->fmt_flags & 1)
- { /* Floating point data. */
- if (desc->bits_per_chan == 32 && desc->pkt_bytes == 4 * desc->channels_per_frame)
- { psf->bytewidth = 4 ;
- return format | SF_FORMAT_FLOAT ;
- } ;
- if (desc->bits_per_chan == 64 && desc->pkt_bytes == 8 * desc->channels_per_frame)
- { psf->bytewidth = 8 ;
- return format | SF_FORMAT_DOUBLE ;
- } ;
- } ;
- if ((desc->fmt_flags & 1) != 0)
- { psf_log_printf (psf, "**** Ooops, 'desc' chunk suggests float data, but other info invalid.n") ;
- return 0 ;
- } ;
- if (desc->fmt_id == lpcm_MARKER)
- { /* Integer data. */
- if (desc->bits_per_chan == 32 && desc->pkt_bytes == 4 * desc->channels_per_frame)
- { psf->bytewidth = 4 ;
- return format | SF_FORMAT_PCM_32 ;
- } ;
- if (desc->bits_per_chan == 24 && desc->pkt_bytes == 3 * desc->channels_per_frame)
- { psf->bytewidth = 3 ;
- return format | SF_FORMAT_PCM_24 ;
- } ;
- if (desc->bits_per_chan == 16 && desc->pkt_bytes == 2 * desc->channels_per_frame)
- { psf->bytewidth = 2 ;
- return format | SF_FORMAT_PCM_16 ;
- } ;
- if (desc->bits_per_chan == 8 && desc->pkt_bytes == 1 * desc->channels_per_frame)
- { psf->bytewidth = 1 ;
- return format | SF_FORMAT_PCM_S8 ;
- } ;
- } ;
- if (desc->fmt_id == alaw_MARKER && desc->bits_per_chan == 8)
- { psf->bytewidth = 1 ;
- return format | SF_FORMAT_ALAW ;
- } ;
- if (desc->fmt_id == ulaw_MARKER && desc->bits_per_chan == 8)
- { psf->bytewidth = 1 ;
- return format | SF_FORMAT_ULAW ;
- } ;
- return 0 ;
- } /* decode_desc_chunk */
- static int
- caf_read_header (SF_PRIVATE *psf)
- { DESC_CHUNK desc ;
- sf_count_t chunk_size ;
- double srate ;
- short version, flags ;
- int marker, k, have_data = 0, error ;
- memset (&desc, 0, sizeof (desc)) ;
- /* Set position to start of file to begin reading header. */
- psf_binheader_readf (psf, "pmE2E2", 0, &marker, &version, &flags) ;
- psf_log_printf (psf, "%Mn Version : %dn Flags : %xn", marker, version, flags) ;
- if (marker != caff_MARKER)
- return SFE_CAF_NOT_CAF ;
- psf_binheader_readf (psf, "mE8b", &marker, &chunk_size, psf->u.ucbuf, 8) ;
- srate = double64_be_read (psf->u.ucbuf) ;
- snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%5.3f", srate) ;
- psf_log_printf (psf, "%M : %Dn Sample rate : %sn", marker, chunk_size, psf->u.cbuf) ;
- if (marker != desc_MARKER)
- return SFE_CAF_NO_DESC ;
- if (chunk_size < SIGNED_SIZEOF (DESC_CHUNK))
- { psf_log_printf (psf, "**** Chunk size too small. Should be > 32 bytes.n") ;
- return SFE_MALFORMED_FILE ;
- } ;
- psf->sf.samplerate = lrint (srate) ;
- psf_binheader_readf (psf, "mE44444", &desc.fmt_id, &desc.fmt_flags, &desc.pkt_bytes, &desc.pkt_frames,
- &desc.channels_per_frame, &desc.bits_per_chan) ;
- psf_log_printf (psf, " Format id : %Mn Format flags : %xn Bytes / packet : %un"
- " Frames / packet : %un Channels / frame : %un Bits / channel : %un",
- desc.fmt_id, desc.fmt_flags, desc.pkt_bytes, desc.pkt_frames, desc.channels_per_frame, desc.bits_per_chan) ;
- if (desc.channels_per_frame > SF_MAX_CHANNELS)
- { psf_log_printf (psf, "**** Bad channels per frame value %u.n", desc.channels_per_frame) ;
- return SFE_MALFORMED_FILE ;
- } ;
- if (chunk_size > SIGNED_SIZEOF (DESC_CHUNK))
- psf_binheader_readf (psf, "j", (int) (chunk_size - sizeof (DESC_CHUNK))) ;
- psf->sf.channels = desc.channels_per_frame ;
- while (have_data == 0 && psf_ftell (psf) < psf->filelength - SIGNED_SIZEOF (marker))
- { psf_binheader_readf (psf, "mE8", &marker, &chunk_size) ;
- switch (marker)
- { case peak_MARKER :
- psf_log_printf (psf, "%M : %Dn", marker, chunk_size) ;
- if (chunk_size != CAF_PEAK_CHUNK_SIZE (psf->sf.channels))
- { psf_binheader_readf (psf, "j", (int) chunk_size) ;
- psf_log_printf (psf, "*** File PEAK chunk %D should be %d.n", chunk_size, CAF_PEAK_CHUNK_SIZE (psf->sf.channels)) ;
- return SFE_CAF_BAD_PEAK ;
- } ;
- if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL)
- return SFE_MALLOC_FAILED ;
- /* read in rest of PEAK chunk. */
- psf_binheader_readf (psf, "E4", & (psf->peak_info->edit_number)) ;
- psf_log_printf (psf, " edit count : %dn", psf->peak_info->edit_number) ;
- psf_log_printf (psf, " Ch Position Valuen") ;
- for (k = 0 ; k < psf->sf.channels ; k++)
- { sf_count_t position ;
- float value ;
- psf_binheader_readf (psf, "Ef8", &value, &position) ;
- psf->peak_info->peaks [k].value = value ;
- psf->peak_info->peaks [k].position = position ;
- snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), " %2d %-12" PRId64 " %gn", k, position, value) ;
- psf_log_printf (psf, psf->u.cbuf) ;
- } ;
- psf->peak_info->peak_loc = SF_PEAK_START ;
- break ;
- case chan_MARKER :
- if (chunk_size < 12)
- { psf_log_printf (psf, "%M : %D (should be >= 12)n", marker, chunk_size) ;
- psf_binheader_readf (psf, "j", (int) chunk_size) ;
- break ;
- }
- psf_log_printf (psf, "%M : %Dn", marker, chunk_size) ;
- if ((error = caf_read_chanmap (psf, chunk_size)))
- return error ;
- break ;
- case free_MARKER :
- psf_log_printf (psf, "%M : %Dn", marker, chunk_size) ;
- psf_binheader_readf (psf, "j", (int) chunk_size) ;
- break ;
- case data_MARKER :
- psf_log_printf (psf, "%M : %Dn", marker, chunk_size) ;
- psf_binheader_readf (psf, "E4", &k) ;
- psf_log_printf (psf, " edit : %un", k) ;
- have_data = 1 ;
- break ;
- default :
- psf_log_printf (psf, " %M : %D (skipped)n", marker, chunk_size) ;
- psf_binheader_readf (psf, "j", (int) chunk_size) ;
- break ;
- } ;
- } ;
- if (have_data == 0)
- { psf_log_printf (psf, "**** Error, could not find 'data' chunk.n") ;
- return SFE_MALFORMED_FILE ;
- } ;
- psf_log_printf (psf, "Endn") ;
- psf->dataoffset = psf_ftell (psf) ;
- psf->datalength = psf->filelength - psf->dataoffset ;
- psf->endian = (desc.fmt_flags & 2) ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ;
- if ((psf->sf.format = decode_desc_chunk (psf, &desc)) == 0)
- return SFE_UNSUPPORTED_ENCODING ;
- if (psf->bytewidth > 0)
- psf->sf.frames = psf->datalength / psf->bytewidth ;
- return 0 ;
- } /* caf_read_header */
- /*------------------------------------------------------------------------------
- */
- static int
- caf_write_header (SF_PRIVATE *psf, int calc_length)
- { CAF_PRIVATE *pcaf ;
- DESC_CHUNK desc ;
- sf_count_t current, free_len ;
- int subformat ;
- if ((pcaf = psf->container_data) == NULL)
- return SFE_INTERNAL ;
- memset (&desc, 0, sizeof (desc)) ;
- 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 > 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) ;
- /* 'caff' marker, version and flags. */
- psf_binheader_writef (psf, "Em22", caff_MARKER, 1, 0) ;
- /* 'desc' marker and chunk size. */
- psf_binheader_writef (psf, "Em8", desc_MARKER, (sf_count_t) (sizeof (DESC_CHUNK))) ;
- double64_be_write (1.0 * psf->sf.samplerate, psf->u.ucbuf) ;
- psf_binheader_writef (psf, "b", psf->u.ucbuf, make_size_t (8)) ;
- subformat = SF_CODEC (psf->sf.format) ;
- psf->endian = SF_ENDIAN (psf->sf.format) ;
- if (CPU_IS_BIG_ENDIAN && (psf->endian == 0 || psf->endian == SF_ENDIAN_CPU))
- psf->endian = SF_ENDIAN_BIG ;
- else if (CPU_IS_LITTLE_ENDIAN && (psf->endian == SF_ENDIAN_LITTLE || psf->endian == SF_ENDIAN_CPU))
- psf->endian = SF_ENDIAN_LITTLE ;
- if (psf->endian == SF_ENDIAN_LITTLE)
- desc.fmt_flags = 2 ;
- else
- psf->endian = SF_ENDIAN_BIG ;
- /* initial section (same for all, it appears) */
- switch (subformat)
- { case SF_FORMAT_PCM_S8 :
- desc.fmt_id = lpcm_MARKER ;
- psf->bytewidth = 1 ;
- desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
- desc.pkt_frames = 1 ;
- desc.channels_per_frame = psf->sf.channels ;
- desc.bits_per_chan = 8 ;
- break ;
- case SF_FORMAT_PCM_16 :
- desc.fmt_id = lpcm_MARKER ;
- psf->bytewidth = 2 ;
- desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
- desc.pkt_frames = 1 ;
- desc.channels_per_frame = psf->sf.channels ;
- desc.bits_per_chan = 16 ;
- break ;
- case SF_FORMAT_PCM_24 :
- psf->bytewidth = 3 ;
- desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
- desc.pkt_frames = 1 ;
- desc.channels_per_frame = psf->sf.channels ;
- desc.bits_per_chan = 24 ;
- desc.fmt_id = lpcm_MARKER ;
- break ;
- case SF_FORMAT_PCM_32 :
- desc.fmt_id = lpcm_MARKER ;
- psf->bytewidth = 4 ;
- desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
- desc.pkt_frames = 1 ;
- desc.channels_per_frame = psf->sf.channels ;
- desc.bits_per_chan = 32 ;
- break ;
- case SF_FORMAT_FLOAT :
- desc.fmt_id = lpcm_MARKER ;
- desc.fmt_flags |= 1 ;
- psf->bytewidth = 4 ;
- desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
- desc.pkt_frames = 1 ;
- desc.channels_per_frame = psf->sf.channels ;
- desc.bits_per_chan = 32 ;
- break ;
- case SF_FORMAT_DOUBLE :
- desc.fmt_id = lpcm_MARKER ;
- desc.fmt_flags |= 1 ;
- psf->bytewidth = 8 ;
- desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
- desc.pkt_frames = 1 ;
- desc.channels_per_frame = psf->sf.channels ;
- desc.bits_per_chan = 64 ;
- break ;
- case SF_FORMAT_ALAW :
- desc.fmt_id = alaw_MARKER ;
- psf->bytewidth = 1 ;
- desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
- desc.pkt_frames = 1 ;
- desc.channels_per_frame = psf->sf.channels ;
- desc.bits_per_chan = 8 ;
- break ;
- case SF_FORMAT_ULAW :
- desc.fmt_id = ulaw_MARKER ;
- psf->bytewidth = 1 ;
- desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
- desc.pkt_frames = 1 ;
- desc.channels_per_frame = psf->sf.channels ;
- desc.bits_per_chan = 8 ;
- break ;
- default :
- return SFE_UNIMPLEMENTED ;
- } ;
- psf_binheader_writef (psf, "mE44444", desc.fmt_id, desc.fmt_flags, desc.pkt_bytes, desc.pkt_frames, desc.channels_per_frame, desc.bits_per_chan) ;
- #if 0
- if (psf->str_flags & SF_STR_LOCATE_START)
- caf_write_strings (psf, SF_STR_LOCATE_START) ;
- #endif
- if (psf->peak_info != NULL)
- { int k ;
- psf_binheader_writef (psf, "Em84", peak_MARKER, (sf_count_t) CAF_PEAK_CHUNK_SIZE (psf->sf.channels), psf->peak_info->edit_number) ;
- for (k = 0 ; k < psf->sf.channels ; k++)
- psf_binheader_writef (psf, "Ef8", (float) psf->peak_info->peaks [k].value, psf->peak_info->peaks [k].position) ;
- } ;
- if (psf->channel_map && pcaf->chanmap_tag)
- psf_binheader_writef (psf, "Em8444", chan_MARKER, (sf_count_t) 12, pcaf->chanmap_tag, 0, 0) ;
- /* Add free chunk so that the actual audio data starts at a multiple 0x1000. */
- free_len = 0x1000 - psf->headindex - 16 - 12 ;
- while (free_len < 0)
- free_len += 0x1000 ;
- psf_binheader_writef (psf, "Em8z", free_MARKER, free_len, (int) free_len) ;
- psf_binheader_writef (psf, "Em84", data_MARKER, psf->datalength, 0) ;
- psf_fwrite (psf->header, psf->headindex, 1, psf) ;
- if (psf->error)
- return psf->error ;
- psf->dataoffset = psf->headindex ;
- if (current < psf->dataoffset)
- psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
- else if (current > 0)
- psf_fseek (psf, current, SEEK_SET) ;
- return psf->error ;
- } /* caf_write_header */
- static int
- caf_read_chanmap (SF_PRIVATE * psf, sf_count_t chunk_size)
- { const AIFF_CAF_CHANNEL_MAP * map_info ;
- unsigned channel_bitmap, channel_decriptions, bytesread ;
- int layout_tag ;
- bytesread = psf_binheader_readf (psf, "E444", &layout_tag, &channel_bitmap, &channel_decriptions) ;
- map_info = aiff_caf_of_channel_layout_tag (layout_tag) ;
- psf_log_printf (psf, " Tag : %xn", layout_tag) ;
- if (map_info)
- psf_log_printf (psf, " Layout : %sn", map_info->name) ;
- if (bytesread < chunk_size)
- psf_binheader_readf (psf, "j", chunk_size - bytesread) ;
- if (map_info->channel_map != NULL)
- { size_t chanmap_size = psf->sf.channels * sizeof (psf->channel_map [0]) ;
- free (psf->channel_map) ;
- if ((psf->channel_map = malloc (chanmap_size)) == NULL)
- return SFE_MALLOC_FAILED ;
- memcpy (psf->channel_map, map_info->channel_map, chanmap_size) ;
- } ;
- return 0 ;
- } /* caf_read_chanmap */