| /* |
| ** Copyright (C) 2005-2011 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, "%M\n Version : %d\n Flags : %x\n", 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 : %D\n Sample rate : %s\n", 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 : %M\n Format flags : %x\n Bytes / packet : %u\n" |
| " Frames / packet : %u\n Channels / frame : %u\n Bits / channel : %u\n", |
| 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 : %D\n", 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 : %d\n", psf->peak_info->edit_number) ; |
| |
| psf_log_printf (psf, " Ch Position Value\n") ; |
| 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 " %g\n", 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 : %D\n", marker, chunk_size) ; |
| |
| if ((error = caf_read_chanmap (psf, chunk_size))) |
| return error ; |
| break ; |
| |
| case free_MARKER : |
| psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ; |
| psf_binheader_readf (psf, "j", (int) chunk_size) ; |
| break ; |
| |
| case data_MARKER : |
| if (psf->filelength > 0 && chunk_size + psf->headindex != psf->filelength) |
| psf_log_printf (psf, "%M : %D (should be %D)\n", marker, chunk_size, chunk_size + 4) ; |
| else |
| psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ; |
| psf_binheader_readf (psf, "E4", &k) ; |
| psf_log_printf (psf, " edit : %u\n", 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, "End\n") ; |
| |
| 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 + 4, 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 : %x\n", layout_tag) ; |
| if (map_info) |
| psf_log_printf (psf, " Layout : %s\n", 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 */ |
| |