115329f1 |
/* |
31c54711 |
* WAV demuxer |
406792e7 |
* Copyright (c) 2001, 2002 Fabrice Bellard |
de6d9b64 |
* |
740e89cf |
* Sony Wave64 demuxer |
811e0fc2 |
* RF64 demuxer |
740e89cf |
* Copyright (c) 2009 Daniel Verkamp
* |
b78e7197 |
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or |
19720f15 |
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either |
b78e7197 |
* version 2.1 of the License, or (at your option) any later version. |
de6d9b64 |
* |
b78e7197 |
* FFmpeg is distributed in the hope that it will be useful, |
de6d9b64 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
19720f15 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details. |
de6d9b64 |
* |
19720f15 |
* You should have received a copy of the GNU Lesser General Public |
b78e7197 |
* License along with FFmpeg; if not, write to the Free Software |
5509bffa |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
de6d9b64 |
*/ |
0ebcdf5c |
|
8f8bc923 |
#include <stdint.h>
|
b21e6b70 |
#include "libavutil/avassert.h"
#include "libavutil/dict.h" |
14ec9d25 |
#include "libavutil/intreadwrite.h" |
a4ad9438 |
#include "libavutil/log.h" |
0ebcdf5c |
#include "libavutil/mathematics.h" |
a4ad9438 |
#include "libavutil/opt.h" |
de6d9b64 |
#include "avformat.h" |
13f57a4d |
#include "avio.h" |
32442930 |
#include "avio_internal.h" |
13f57a4d |
#include "internal.h"
#include "metadata.h" |
e94204df |
#include "pcm.h" |
9d9f4119 |
#include "riff.h" |
9a742826 |
#include "w64.h" |
1ae9d282 |
#include "spdif.h" |
46a3d068 |
|
31c54711 |
typedef struct WAVDemuxContext { |
a4ad9438 |
const AVClass *class; |
bc5c918e |
int64_t data_end; |
740e89cf |
int w64; |
4b4a6ebd |
int64_t smv_data_ofs;
int smv_block_size;
int smv_frames_per_jpeg;
int smv_block;
int smv_last_stream;
int smv_eof;
int audio_eof; |
02acfb1c |
int ignore_length; |
1ae9d282 |
int spdif; |
14ec9d25 |
int smv_cur_pt;
int smv_given_first; |
dc2e4c2e |
int unaligned; // e.g. if an odd number of bytes ID3 tag was prepended |
00d7555f |
int rifx; // RIFX: integer byte order for parameters is big endian |
31c54711 |
} WAVDemuxContext; |
de6d9b64 |
|
fcbdc44f |
static void set_spdif(AVFormatContext *s, WAVDemuxContext *wav)
{ |
6f69f7a8 |
if (CONFIG_SPDIF_DEMUXER && s->streams[0]->codecpar->codec_tag == 1) { |
fcbdc44f |
enum AVCodecID codec; |
cf4d050b |
int len = 1<<16; |
06c4ed0c |
int ret = ffio_ensure_seekback(s->pb, len); |
cf4d050b |
|
a5cf600c |
if (ret >= 0) {
uint8_t *buf = av_malloc(len);
if (!buf) {
ret = AVERROR(ENOMEM);
} else {
int64_t pos = avio_tell(s->pb);
len = ret = avio_read(s->pb, buf, len);
if (len >= 0) {
ret = ff_spdif_probe(buf, len, &codec);
if (ret > AVPROBE_SCORE_EXTENSION) {
s->streams[0]->codecpar->codec_id = codec;
wav->spdif = 1;
}
}
avio_seek(s->pb, pos, SEEK_SET);
av_free(buf);
} |
cf4d050b |
}
if (ret < 0)
av_log(s, AV_LOG_WARNING, "Cannot check for SPDIF\n"); |
fcbdc44f |
}
}
|
8f771e76 |
#if CONFIG_WAV_DEMUXER |
724b1f6a |
|
00d7555f |
static int64_t next_tag(AVIOContext *pb, uint32_t *tag, int big_endian) |
724b1f6a |
{ |
e63a3628 |
*tag = avio_rl32(pb); |
00d7555f |
if (!big_endian) {
return avio_rl32(pb);
} else {
return avio_rb32(pb);
} |
724b1f6a |
}
|
dc2e4c2e |
/* RIFF chunks are always at even offsets relative to where they start. */
static int64_t wav_seek_tag(WAVDemuxContext * wav, AVIOContext *s, int64_t offset, int whence) |
ac87eaf8 |
{ |
dc2e4c2e |
offset += offset < INT64_MAX && offset + wav->unaligned & 1; |
09602dbe |
return avio_seek(s, offset, whence); |
ac87eaf8 |
}
|
de6d9b64 |
/* return the size of the found tag */ |
dc2e4c2e |
static int64_t find_tag(WAVDemuxContext * wav, AVIOContext *pb, uint32_t tag1) |
de6d9b64 |
{
unsigned int tag; |
502d6c0a |
int64_t size; |
de6d9b64 |
|
c5e86106 |
for (;;) { |
d34ec64a |
if (avio_feof(pb)) |
23a7c32a |
return AVERROR_EOF; |
00d7555f |
size = next_tag(pb, &tag, wav->rifx); |
de6d9b64 |
if (tag == tag1)
break; |
dc2e4c2e |
wav_seek_tag(wav, pb, size, SEEK_CUR); |
de6d9b64 |
}
return size;
}
|
c9a65ca8 |
static int wav_probe(AVProbeData *p)
{
/* check file header */
if (p->buf_size <= 32)
return 0; |
811e0fc2 |
if (!memcmp(p->buf + 8, "WAVE", 4)) { |
00d7555f |
if (!memcmp(p->buf, "RIFF", 4) || !memcmp(p->buf, "RIFX", 4)) |
a5f88736 |
/* Since the ACT demuxer has a standard WAV header at the top of
* its own, the returned score is decreased to avoid a probe
* conflict between ACT and WAV. */ |
70d8c762 |
return AVPROBE_SCORE_MAX - 1; |
811e0fc2 |
else if (!memcmp(p->buf, "RF64", 4) &&
!memcmp(p->buf + 12, "ds64", 4))
return AVPROBE_SCORE_MAX;
} |
70d8c762 |
return 0; |
c9a65ca8 |
}
|
697b476c |
static void handle_stream_probing(AVStream *st)
{ |
6f69f7a8 |
if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16LE) { |
097f6680 |
st->request_probe = AVPROBE_SCORE_EXTENSION; |
40a3e1e9 |
st->probe_packets = FFMIN(st->probe_packets, 32); |
697b476c |
}
}
|
cc1ca9e5 |
static int wav_parse_fmt_tag(AVFormatContext *s, int64_t size, AVStream **st)
{
AVIOContext *pb = s->pb; |
00d7555f |
WAVDemuxContext *wav = s->priv_data; |
cc1ca9e5 |
int ret;
/* parse fmt header */ |
3b3bbdd3 |
*st = avformat_new_stream(s, NULL); |
cc1ca9e5 |
if (!*st)
return AVERROR(ENOMEM);
|
6f69f7a8 |
ret = ff_get_wav_header(s, pb, (*st)->codecpar, size, wav->rifx); |
cc1ca9e5 |
if (ret < 0)
return ret; |
697b476c |
handle_stream_probing(*st);
|
4e7f9ebd |
(*st)->need_parsing = AVSTREAM_PARSE_FULL_RAW; |
cc1ca9e5 |
|
9200514a |
avpriv_set_pts_info(*st, 64, 1, (*st)->codecpar->sample_rate); |
cc1ca9e5 |
return 0;
}
|
a0f75c46 |
static int wav_parse_xma2_tag(AVFormatContext *s, int64_t size, AVStream **st)
{
AVIOContext *pb = s->pb; |
1954e625 |
int version, num_streams, i, channels = 0; |
a0f75c46 |
|
1954e625 |
if (size < 36) |
a0f75c46 |
return AVERROR_INVALIDDATA;
*st = avformat_new_stream(s, NULL);
if (!*st)
return AVERROR(ENOMEM);
|
6f69f7a8 |
(*st)->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
(*st)->codecpar->codec_id = AV_CODEC_ID_XMA2;
(*st)->need_parsing = AVSTREAM_PARSE_FULL_RAW; |
a0f75c46 |
|
1954e625 |
version = avio_r8(pb);
if (version != 3 && version != 4)
return AVERROR_INVALIDDATA; |
a0f75c46 |
num_streams = avio_r8(pb); |
1954e625 |
if (size != (32 + ((version==3)?0:8) + 4*num_streams)) |
a0f75c46 |
return AVERROR_INVALIDDATA;
avio_skip(pb, 10); |
6f69f7a8 |
(*st)->codecpar->sample_rate = avio_rb32(pb); |
1954e625 |
if (version == 4)
avio_skip(pb, 8);
avio_skip(pb, 4); |
a0f75c46 |
(*st)->duration = avio_rb32(pb);
avio_skip(pb, 8);
for (i = 0; i < num_streams; i++) {
channels += avio_r8(pb);
avio_skip(pb, 3);
} |
6f69f7a8 |
(*st)->codecpar->channels = channels; |
a0f75c46 |
|
6f69f7a8 |
if ((*st)->codecpar->channels <= 0 || (*st)->codecpar->sample_rate <= 0) |
a0f75c46 |
return AVERROR_INVALIDDATA;
|
6f69f7a8 |
avpriv_set_pts_info(*st, 64, 1, (*st)->codecpar->sample_rate); |
1954e625 |
avio_seek(pb, -size, SEEK_CUR);
av_freep(&(*st)->codecpar->extradata);
if (ff_get_extradata(s, (*st)->codecpar, pb, size) < 0) |
a0f75c46 |
return AVERROR(ENOMEM);
return 0;
}
|
b21e6b70 |
static inline int wav_parse_bext_string(AVFormatContext *s, const char *key,
int length) |
7e5cb2ef |
{
char temp[257];
int ret;
|
b21e6b70 |
av_assert0(length <= sizeof(temp)); |
7e5cb2ef |
if ((ret = avio_read(s->pb, temp, length)) < 0)
return ret;
temp[length] = 0;
if (strlen(temp)) |
e6ba3d42 |
return av_dict_set(&s->metadata, key, temp, 0); |
7e5cb2ef |
return 0;
}
static int wav_parse_bext_tag(AVFormatContext *s, int64_t size)
{
char temp[131], *coding_history;
int ret, x;
uint64_t time_reference;
int64_t umid_parts[8], umid_mask = 0;
if ((ret = wav_parse_bext_string(s, "description", 256)) < 0 ||
(ret = wav_parse_bext_string(s, "originator", 32)) < 0 ||
(ret = wav_parse_bext_string(s, "originator_reference", 32)) < 0 ||
(ret = wav_parse_bext_string(s, "origination_date", 10)) < 0 ||
(ret = wav_parse_bext_string(s, "origination_time", 8)) < 0)
return ret;
time_reference = avio_rl64(s->pb); |
8d953175 |
snprintf(temp, sizeof(temp), "%"PRIu64, time_reference); |
e6ba3d42 |
if ((ret = av_dict_set(&s->metadata, "time_reference", temp, 0)) < 0) |
7e5cb2ef |
return ret;
/* check if version is >= 1, in which case an UMID may be present */
if (avio_rl16(s->pb) >= 1) {
for (x = 0; x < 8; x++)
umid_mask |= umid_parts[x] = avio_rb64(s->pb);
if (umid_mask) {
/* the string formatting below is per SMPTE 330M-2004 Annex C */ |
13f57a4d |
if (umid_parts[4] == 0 && umid_parts[5] == 0 &&
umid_parts[6] == 0 && umid_parts[7] == 0) { |
7e5cb2ef |
/* basic UMID */ |
13f57a4d |
snprintf(temp, sizeof(temp),
"0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
umid_parts[0], umid_parts[1],
umid_parts[2], umid_parts[3]); |
7e5cb2ef |
} else {
/* extended UMID */ |
13f57a4d |
snprintf(temp, sizeof(temp),
"0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64 |
482c1ac8 |
"%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64, |
13f57a4d |
umid_parts[0], umid_parts[1],
umid_parts[2], umid_parts[3],
umid_parts[4], umid_parts[5],
umid_parts[6], umid_parts[7]); |
7e5cb2ef |
}
|
e6ba3d42 |
if ((ret = av_dict_set(&s->metadata, "umid", temp, 0)) < 0) |
7e5cb2ef |
return ret;
}
avio_skip(s->pb, 190);
} else
avio_skip(s->pb, 254);
if (size > 602) {
/* CodingHistory present */
size -= 602;
|
13f57a4d |
if (!(coding_history = av_malloc(size + 1))) |
7e5cb2ef |
return AVERROR(ENOMEM);
if ((ret = avio_read(s->pb, coding_history, size)) < 0)
return ret;
coding_history[size] = 0; |
e6ba3d42 |
if ((ret = av_dict_set(&s->metadata, "coding_history", coding_history, |
62709956 |
AV_DICT_DONT_STRDUP_VAL)) < 0) |
7e5cb2ef |
return ret;
}
return 0;
}
|
2660e9e1 |
static const AVMetadataConv wav_metadata_conv[] = { |
13f57a4d |
{ "description", "comment" },
{ "originator", "encoded_by" },
{ "origination_date", "date" },
{ "origination_time", "creation_time" },
{ 0 }, |
2660e9e1 |
};
|
de6d9b64 |
/* wav input */ |
6e9651d1 |
static int wav_read_header(AVFormatContext *s) |
de6d9b64 |
{ |
811e0fc2 |
int64_t size, av_uninit(data_size); |
13f57a4d |
int64_t sample_count = 0; |
1a971d33 |
int rf64 = 0; |
a43283b6 |
uint32_t tag; |
13f57a4d |
AVIOContext *pb = s->pb;
AVStream *st = NULL; |
31c54711 |
WAVDemuxContext *wav = s->priv_data; |
a0f75c46 |
int ret, got_fmt = 0, got_xma2 = 0; |
6629dbd2 |
int64_t next_tag_ofs, data_ofs = -1; |
de6d9b64 |
|
dc2e4c2e |
wav->unaligned = avio_tell(s->pb) & 1;
|
4b4a6ebd |
wav->smv_data_ofs = -1;
|
1a971d33 |
/* read chunk ID */ |
e63a3628 |
tag = avio_rl32(pb); |
1a971d33 |
switch (tag) {
case MKTAG('R', 'I', 'F', 'F'):
break;
case MKTAG('R', 'I', 'F', 'X'):
wav->rifx = 1;
break;
case MKTAG('R', 'F', '6', '4'):
rf64 = 1;
break;
default: |
cd4d6cba |
av_log(s, AV_LOG_ERROR, "invalid start code %s in RIFF header\n",
av_fourcc2str(tag)); |
69467fb6 |
return AVERROR_INVALIDDATA; |
1a971d33 |
}
/* read chunk size */
avio_rl32(pb);
/* read format */
if (avio_rl32(pb) != MKTAG('W', 'A', 'V', 'E')) {
av_log(s, AV_LOG_ERROR, "invalid format in RIFF header\n"); |
69467fb6 |
return AVERROR_INVALIDDATA; |
1a971d33 |
} |
115329f1 |
|
811e0fc2 |
if (rf64) { |
e63a3628 |
if (avio_rl32(pb) != MKTAG('d', 's', '6', '4')) |
69467fb6 |
return AVERROR_INVALIDDATA; |
e63a3628 |
size = avio_rl32(pb); |
c9614bb2 |
if (size < 24) |
69467fb6 |
return AVERROR_INVALIDDATA; |
e63a3628 |
avio_rl64(pb); /* RIFF size */ |
13f57a4d |
data_size = avio_rl64(pb); |
e63a3628 |
sample_count = avio_rl64(pb); |
13f57a4d |
|
3d922c84 |
if (data_size < 0 || sample_count < 0) {
av_log(s, AV_LOG_ERROR, "negative data_size and/or sample_count in " |
8d953175 |
"ds64: data_size = %"PRId64", sample_count = %"PRId64"\n", |
3d922c84 |
data_size, sample_count);
return AVERROR_INVALIDDATA;
} |
e472f0ea |
avio_skip(pb, size - 24); /* skip rest of ds64 chunk */ |
80e4fe40 |
|
811e0fc2 |
}
|
f9329946 |
for (;;) { |
4b4a6ebd |
AVStream *vst; |
00d7555f |
size = next_tag(pb, &tag, wav->rifx); |
93df511e |
next_tag_ofs = avio_tell(pb) + size; |
cc1ca9e5 |
|
d34ec64a |
if (avio_feof(pb)) |
6629dbd2 |
break;
|
a06d238e |
switch (tag) {
case MKTAG('f', 'm', 't', ' '): |
cc1ca9e5 |
/* only parse the first 'fmt ' tag found */ |
a0f75c46 |
if (!got_xma2 && !got_fmt && (ret = wav_parse_fmt_tag(s, size, &st)) < 0) { |
cc1ca9e5 |
return ret;
} else if (got_fmt)
av_log(s, AV_LOG_WARNING, "found more than one 'fmt ' tag\n");
got_fmt = 1; |
a06d238e |
break; |
a0f75c46 |
case MKTAG('X', 'M', 'A', '2'):
/* only parse the first 'XMA2' tag found */
if (!got_fmt && !got_xma2 && (ret = wav_parse_xma2_tag(s, size, &st)) < 0) {
return ret;
} else if (got_xma2)
av_log(s, AV_LOG_WARNING, "found more than one 'XMA2' tag\n");
got_xma2 = 1;
break; |
a06d238e |
case MKTAG('d', 'a', 't', 'a'): |
4de591e6 |
if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) && !got_fmt && !got_xma2) { |
13f57a4d |
av_log(s, AV_LOG_ERROR,
"found no 'fmt ' tag before the 'data' tag\n"); |
cc1ca9e5 |
return AVERROR_INVALIDDATA;
}
|
6629dbd2 |
if (rf64) {
next_tag_ofs = wav->data_end = avio_tell(pb) + data_size; |
2acc0656 |
} else if (size != 0xFFFFFFFF) { |
13f57a4d |
data_size = size; |
f86d260d |
next_tag_ofs = wav->data_end = size ? next_tag_ofs : INT64_MAX; |
2acc0656 |
} else {
av_log(s, AV_LOG_WARNING, "Ignoring maximum wav data size, "
"file may be invalid\n");
data_size = 0;
next_tag_ofs = wav->data_end = INT64_MAX; |
6629dbd2 |
}
|
f86d260d |
data_ofs = avio_tell(pb);
|
6629dbd2 |
/* don't look for footer metadata if we can't seek or if we don't
* know where the data tag ends
*/ |
83548fe8 |
if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) || (!rf64 && !size)) |
40612f26 |
goto break_loop; |
6629dbd2 |
break; |
13f57a4d |
case MKTAG('f', 'a', 'c', 't'): |
90f2ee8c |
if (!sample_count) |
00d7555f |
sample_count = (!wav->rifx ? avio_rl32(pb) : avio_rb32(pb)); |
a06d238e |
break; |
13f57a4d |
case MKTAG('b', 'e', 'x', 't'): |
7e5cb2ef |
if ((ret = wav_parse_bext_tag(s, size)) < 0)
return ret;
break; |
4b4a6ebd |
case MKTAG('S','M','V','0'): |
5ab85577 |
if (!got_fmt) {
av_log(s, AV_LOG_ERROR, "found no 'fmt ' tag before the 'SMV0' tag\n");
return AVERROR_INVALIDDATA;
} |
4b4a6ebd |
// SMV file, a wav file with video appended.
if (size != MKTAG('0','2','0','0')) {
av_log(s, AV_LOG_ERROR, "Unknown SMV version found\n");
goto break_loop;
}
av_log(s, AV_LOG_DEBUG, "Found SMV data\n"); |
14ec9d25 |
wav->smv_given_first = 0; |
0e5ecd80 |
vst = avformat_new_stream(s, NULL); |
4b4a6ebd |
if (!vst)
return AVERROR(ENOMEM);
avio_r8(pb); |
0e5ecd80 |
vst->id = 1; |
6f69f7a8 |
vst->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
vst->codecpar->codec_id = AV_CODEC_ID_SMVJPEG;
vst->codecpar->width = avio_rl24(pb);
vst->codecpar->height = avio_rl24(pb);
if (ff_alloc_extradata(vst->codecpar, 4)) { |
14ec9d25 |
av_log(s, AV_LOG_ERROR, "Could not allocate extradata.\n");
return AVERROR(ENOMEM);
} |
4b4a6ebd |
size = avio_rl24(pb);
wav->smv_data_ofs = avio_tell(pb) + (size - 5) * 3;
avio_rl24(pb);
wav->smv_block_size = avio_rl24(pb); |
215b7724 |
avpriv_set_pts_info(vst, 32, 1, avio_rl24(pb)); |
4b4a6ebd |
vst->duration = avio_rl24(pb);
avio_rl24(pb);
avio_rl24(pb);
wav->smv_frames_per_jpeg = avio_rl24(pb); |
e0249537 |
if (wav->smv_frames_per_jpeg > 65536) {
av_log(s, AV_LOG_ERROR, "too many frames per jpeg\n");
return AVERROR_INVALIDDATA;
} |
6f69f7a8 |
AV_WL32(vst->codecpar->extradata, wav->smv_frames_per_jpeg); |
14ec9d25 |
wav->smv_cur_pt = 0; |
4b4a6ebd |
goto break_loop; |
12bc2050 |
case MKTAG('L', 'I', 'S', 'T'): |
a8e93ce4 |
if (size < 4) { |
7862bd3d |
av_log(s, AV_LOG_ERROR, "too short LIST tag\n"); |
12bc2050 |
return AVERROR_INVALIDDATA;
} |
a43283b6 |
switch (avio_rl32(pb)) { |
12bc2050 |
case MKTAG('I', 'N', 'F', 'O'): |
09456d0d |
ff_read_riff_info(s, size - 4); |
12bc2050 |
}
break; |
f9329946 |
} |
f86d260d |
/* seek to next tag unless we know that we'll run into EOF */
if ((avio_size(pb) > 0 && next_tag_ofs >= avio_size(pb)) || |
dc2e4c2e |
wav_seek_tag(wav, pb, next_tag_ofs, SEEK_SET) < 0) { |
f86d260d |
break;
} |
f9329946 |
} |
13f57a4d |
|
a06d238e |
break_loop: |
4e583eda |
if (!got_fmt && !got_xma2) {
av_log(s, AV_LOG_ERROR, "no 'fmt ' or 'XMA2' tag found\n");
return AVERROR_INVALIDDATA;
}
|
f86d260d |
if (data_ofs < 0) {
av_log(s, AV_LOG_ERROR, "no 'data' tag found\n");
return AVERROR_INVALIDDATA;
}
avio_seek(pb, data_ofs, SEEK_SET); |
462b2620 |
|
f40ec704 |
if (data_size > (INT64_MAX>>3)) {
av_log(s, AV_LOG_WARNING, "Data size %"PRId64" is too large\n", data_size);
data_size = 0;
}
|
6f69f7a8 |
if ( st->codecpar->bit_rate > 0 && data_size > 0
&& st->codecpar->sample_rate > 0
&& sample_count > 0 && st->codecpar->channels > 1
&& sample_count % st->codecpar->channels == 0) {
if (fabs(8.0 * data_size * st->codecpar->channels * st->codecpar->sample_rate /
sample_count /st->codecpar->bit_rate - 1.0) < 0.3)
sample_count /= st->codecpar->channels; |
acbd78a0 |
}
|
6f69f7a8 |
if ( data_size > 0 && sample_count && st->codecpar->channels
&& (data_size << 3) / sample_count / st->codecpar->channels > st->codecpar->bits_per_coded_sample + 1) { |
47c84c0b |
av_log(s, AV_LOG_WARNING, "ignoring wrong sample_count %"PRId64"\n", sample_count);
sample_count = 0;
}
|
c1bfb99f |
/* G.729 hack (for Ticket4577)
* FIXME: Come up with cleaner, more general solution */ |
6f69f7a8 |
if (st->codecpar->codec_id == AV_CODEC_ID_G729 && sample_count && (data_size << 3) > sample_count) { |
c1bfb99f |
av_log(s, AV_LOG_WARNING, "ignoring wrong sample_count %"PRId64"\n", sample_count);
sample_count = 0;
}
|
6f69f7a8 |
if (!sample_count || av_get_exact_bits_per_sample(st->codecpar->codec_id) > 0)
if ( st->codecpar->channels |
83fc6c82 |
&& data_size |
6f69f7a8 |
&& av_get_bits_per_sample(st->codecpar->codec_id) |
83fc6c82 |
&& wav->data_end <= avio_size(pb))
sample_count = (data_size << 3)
/ |
6f69f7a8 |
(st->codecpar->channels * (uint64_t)av_get_bits_per_sample(st->codecpar->codec_id)); |
83fc6c82 |
|
462b2620 |
if (sample_count)
st->duration = sample_count; |
2660e9e1 |
|
31426911 |
if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S32LE &&
st->codecpar->block_align == st->codecpar->channels * 4 &&
st->codecpar->bits_per_coded_sample == 32 &&
st->codecpar->extradata_size == 2 &&
AV_RL16(st->codecpar->extradata) == 1) {
st->codecpar->codec_id = AV_CODEC_ID_PCM_F16LE;
st->codecpar->bits_per_coded_sample = 16;
} else if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE &&
st->codecpar->block_align == st->codecpar->channels * 4 &&
st->codecpar->bits_per_coded_sample == 24) {
st->codecpar->codec_id = AV_CODEC_ID_PCM_F24LE; |
6c43f33a |
} else if (st->codecpar->codec_id == AV_CODEC_ID_XMA1 ||
st->codecpar->codec_id == AV_CODEC_ID_XMA2) {
st->codecpar->block_align = 2048; |
31426911 |
}
|
2660e9e1 |
ff_metadata_conv_ctx(s, NULL, wav_metadata_conv); |
12bc2050 |
ff_metadata_conv_ctx(s, NULL, ff_riff_info_conv); |
2660e9e1 |
|
fcbdc44f |
set_spdif(s, wav);
|
de6d9b64 |
return 0;
}
|
13f57a4d |
/**
* Find chunk with w64 GUID by skipping over other chunks. |
738914be |
* @return the size of the found chunk
*/ |
471fe57e |
static int64_t find_guid(AVIOContext *pb, const uint8_t guid1[16]) |
738914be |
{
uint8_t guid[16];
int64_t size;
|
d34ec64a |
while (!avio_feof(pb)) { |
e63a3628 |
avio_read(pb, guid, 16);
size = avio_rl64(pb); |
738914be |
if (size <= 24) |
23a7c32a |
return AVERROR_INVALIDDATA; |
738914be |
if (!memcmp(guid, guid1, 16))
return size; |
45a8a02a |
avio_skip(pb, FFALIGN(size, INT64_C(8)) - 24); |
738914be |
} |
23a7c32a |
return AVERROR_EOF; |
738914be |
}
|
de6d9b64 |
#define MAX_SIZE 4096
|
13f57a4d |
static int wav_read_packet(AVFormatContext *s, AVPacket *pkt) |
de6d9b64 |
{ |
740e89cf |
int ret, size;
int64_t left; |
f9b5459e |
AVStream *st; |
31c54711 |
WAVDemuxContext *wav = s->priv_data; |
de6d9b64 |
|
1ae9d282 |
if (CONFIG_SPDIF_DEMUXER && wav->spdif == 1)
return ff_spdif_read_packet(s, pkt);
|
4b4a6ebd |
if (wav->smv_data_ofs > 0) {
int64_t audio_dts, video_dts;
smv_retry: |
6abb9eb5 |
audio_dts = (int32_t)s->streams[0]->cur_dts;
video_dts = (int32_t)s->streams[1]->cur_dts; |
14ec9d25 |
|
4b4a6ebd |
if (audio_dts != AV_NOPTS_VALUE && video_dts != AV_NOPTS_VALUE) { |
14ec9d25 |
/*We always return a video frame first to get the pixel format first*/ |
2a91038e |
wav->smv_last_stream = wav->smv_given_first ?
av_compare_ts(video_dts, s->streams[1]->time_base,
audio_dts, s->streams[0]->time_base) > 0 : 0; |
14ec9d25 |
wav->smv_given_first = 1; |
4b4a6ebd |
}
wav->smv_last_stream = !wav->smv_last_stream;
wav->smv_last_stream |= wav->audio_eof;
wav->smv_last_stream &= !wav->smv_eof;
if (wav->smv_last_stream) {
uint64_t old_pos = avio_tell(s->pb);
uint64_t new_pos = wav->smv_data_ofs +
wav->smv_block * wav->smv_block_size;
if (avio_seek(s->pb, new_pos, SEEK_SET) < 0) {
ret = AVERROR_EOF;
goto smv_out;
}
size = avio_rl24(s->pb);
ret = av_get_packet(s->pb, pkt, size);
if (ret < 0)
goto smv_out;
pkt->pos -= 3; |
14ec9d25 |
pkt->pts = wav->smv_block * wav->smv_frames_per_jpeg + wav->smv_cur_pt;
wav->smv_cur_pt++;
if (wav->smv_frames_per_jpeg > 0)
wav->smv_cur_pt %= wav->smv_frames_per_jpeg;
if (!wav->smv_cur_pt)
wav->smv_block++;
|
4b4a6ebd |
pkt->stream_index = 1;
smv_out:
avio_seek(s->pb, old_pos, SEEK_SET);
if (ret == AVERROR_EOF) {
wav->smv_eof = 1;
goto smv_retry;
}
return ret;
}
}
|
f9b5459e |
st = s->streams[0];
|
384c9c2f |
left = wav->data_end - avio_tell(s->pb); |
02acfb1c |
if (wav->ignore_length) |
482c1ac8 |
left = INT_MAX; |
13f57a4d |
if (left <= 0) { |
c5e86106 |
if (CONFIG_W64_DEMUXER && wav->w64) |
9a742826 |
left = find_guid(s->pb, ff_w64_guid_data) - 24; |
c5e86106 |
else |
dc2e4c2e |
left = find_tag(wav, s->pb, MKTAG('d', 'a', 't', 'a')); |
4b4a6ebd |
if (left < 0) {
wav->audio_eof = 1;
if (wav->smv_data_ofs > 0 && !wav->smv_eof)
goto smv_retry; |
3fcb5113 |
return AVERROR_EOF; |
4b4a6ebd |
} |
13f57a4d |
wav->data_end = avio_tell(s->pb) + left; |
b582d7ba |
}
|
f9b5459e |
size = MAX_SIZE; |
9200514a |
if (st->codecpar->block_align > 1) {
if (size < st->codecpar->block_align)
size = st->codecpar->block_align;
size = (size / st->codecpar->block_align) * st->codecpar->block_align; |
f9b5459e |
} |
c5e86106 |
size = FFMIN(size, left);
ret = av_get_packet(s->pb, pkt, size); |
e581b628 |
if (ret < 0)
return ret; |
de6d9b64 |
pkt->stream_index = 0;
return ret;
}
|
115329f1 |
static int wav_read_seek(AVFormatContext *s, |
7b3c1382 |
int stream_index, int64_t timestamp, int flags) |
f9b5459e |
{ |
df5e089d |
WAVDemuxContext *wav = s->priv_data; |
f9b5459e |
AVStream *st; |
4b4a6ebd |
wav->smv_eof = 0;
wav->audio_eof = 0;
if (wav->smv_data_ofs > 0) {
int64_t smv_timestamp = timestamp;
if (stream_index == 0)
smv_timestamp = av_rescale_q(timestamp, s->streams[0]->time_base, s->streams[1]->time_base);
else
timestamp = av_rescale_q(smv_timestamp, s->streams[1]->time_base, s->streams[0]->time_base); |
14ec9d25 |
if (wav->smv_frames_per_jpeg > 0) {
wav->smv_block = smv_timestamp / wav->smv_frames_per_jpeg;
wav->smv_cur_pt = smv_timestamp % wav->smv_frames_per_jpeg;
} |
4b4a6ebd |
} |
f9b5459e |
st = s->streams[0]; |
9200514a |
switch (st->codecpar->codec_id) { |
36ef5369 |
case AV_CODEC_ID_MP2:
case AV_CODEC_ID_MP3:
case AV_CODEC_ID_AC3:
case AV_CODEC_ID_DTS: |
8869f5ef |
case AV_CODEC_ID_XMA2: |
f9b5459e |
/* use generic seeking with dynamically generated indexes */
return -1;
default:
break;
} |
167f3b8d |
return ff_pcm_read_seek(s, stream_index, timestamp, flags); |
f9b5459e |
}
|
df5e089d |
#define OFFSET(x) offsetof(WAVDemuxContext, x) |
02acfb1c |
#define DEC AV_OPT_FLAG_DECODING_PARAM
static const AVOption demux_options[] = { |
abef6383 |
{ "ignore_length", "Ignore length", OFFSET(ignore_length), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC }, |
02acfb1c |
{ NULL },
};
static const AVClass wav_demuxer_class = {
.class_name = "WAV demuxer",
.item_name = av_default_item_name,
.option = demux_options,
.version = LIBAVUTIL_VERSION_INT,
}; |
66355be3 |
AVInputFormat ff_wav_demuxer = { |
dfc2c4d9 |
.name = "wav", |
0177b7d2 |
.long_name = NULL_IF_CONFIG_SMALL("WAV / WAVE (Waveform Audio)"), |
31c54711 |
.priv_data_size = sizeof(WAVDemuxContext), |
dfc2c4d9 |
.read_probe = wav_probe,
.read_header = wav_read_header,
.read_packet = wav_read_packet,
.read_seek = wav_read_seek, |
20234a4b |
.flags = AVFMT_GENERIC_INDEX, |
13f57a4d |
.codec_tag = (const AVCodecTag * const []) { ff_codec_wav_tags, 0 }, |
02acfb1c |
.priv_class = &wav_demuxer_class, |
c9a65ca8 |
}; |
8f771e76 |
#endif /* CONFIG_WAV_DEMUXER */ |
c5e86106 |
|
740e89cf |
#if CONFIG_W64_DEMUXER |
8f771e76 |
static int w64_probe(AVProbeData *p)
{
if (p->buf_size <= 40)
return 0; |
9a742826 |
if (!memcmp(p->buf, ff_w64_guid_riff, 16) &&
!memcmp(p->buf + 24, ff_w64_guid_wave, 16)) |
8f771e76 |
return AVPROBE_SCORE_MAX;
else
return 0;
}
|
6e9651d1 |
static int w64_read_header(AVFormatContext *s) |
8f771e76 |
{ |
14d50c19 |
int64_t size, data_ofs = 0; |
13f57a4d |
AVIOContext *pb = s->pb;
WAVDemuxContext *wav = s->priv_data; |
8f771e76 |
AVStream *st;
uint8_t guid[16]; |
ca402f32 |
int ret; |
8f771e76 |
|
e63a3628 |
avio_read(pb, guid, 16); |
9a742826 |
if (memcmp(guid, ff_w64_guid_riff, 16)) |
69467fb6 |
return AVERROR_INVALIDDATA; |
8f771e76 |
|
13f57a4d |
/* riff + wave + fmt + sizes */
if (avio_rl64(pb) < 16 + 8 + 16 + 8 + 16 + 8) |
69467fb6 |
return AVERROR_INVALIDDATA; |
8f771e76 |
|
e63a3628 |
avio_read(pb, guid, 16); |
9a742826 |
if (memcmp(guid, ff_w64_guid_wave, 16)) { |
8f771e76 |
av_log(s, AV_LOG_ERROR, "could not find wave guid\n"); |
69467fb6 |
return AVERROR_INVALIDDATA; |
8f771e76 |
}
|
14d50c19 |
wav->w64 = 1; |
8f771e76 |
|
3b3bbdd3 |
st = avformat_new_stream(s, NULL); |
8f771e76 |
if (!st)
return AVERROR(ENOMEM);
|
d34ec64a |
while (!avio_feof(pb)) { |
14d50c19 |
if (avio_read(pb, guid, 16) != 16)
break;
size = avio_rl64(pb);
if (size <= 24 || INT64_MAX - size < avio_tell(pb))
return AVERROR_INVALIDDATA; |
8f771e76 |
|
14d50c19 |
if (!memcmp(guid, ff_w64_guid_fmt, 16)) {
/* subtract chunk header size - normal wav file doesn't count it */ |
6f69f7a8 |
ret = ff_get_wav_header(s, pb, st->codecpar, size - 24, 0); |
14d50c19 |
if (ret < 0)
return ret;
avio_skip(pb, FFALIGN(size, INT64_C(8)) - size); |
8f771e76 |
|
6f69f7a8 |
avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); |
3174137d |
} else if (!memcmp(guid, ff_w64_guid_fact, 16)) {
int64_t samples;
samples = avio_rl64(pb);
if (samples > 0)
st->duration = samples; |
14d50c19 |
} else if (!memcmp(guid, ff_w64_guid_data, 16)) {
wav->data_end = avio_tell(pb) + size - 24; |
8f771e76 |
|
14d50c19 |
data_ofs = avio_tell(pb); |
4de591e6 |
if (!(pb->seekable & AVIO_SEEKABLE_NORMAL)) |
14d50c19 |
break;
avio_skip(pb, size - 24);
} else if (!memcmp(guid, ff_w64_guid_summarylist, 16)) {
int64_t start, end, cur;
uint32_t count, chunk_size, i;
start = avio_tell(pb); |
3e36dc86 |
end = start + FFALIGN(size, INT64_C(8)) - 24; |
14d50c19 |
count = avio_rl32(pb);
for (i = 0; i < count; i++) {
char chunk_key[5], *value;
|
d34ec64a |
if (avio_feof(pb) || (cur = avio_tell(pb)) < 0 || cur > end - 8 /* = tag + size */) |
14d50c19 |
break;
chunk_key[4] = 0;
avio_read(pb, chunk_key, 4);
chunk_size = avio_rl32(pb); |
3d232196 |
if (chunk_size == UINT32_MAX)
return AVERROR_INVALIDDATA; |
14d50c19 |
value = av_mallocz(chunk_size + 1);
if (!value)
return AVERROR(ENOMEM);
ret = avio_get_str16le(pb, chunk_size, value, chunk_size);
avio_skip(pb, chunk_size - ret);
av_dict_set(&s->metadata, chunk_key, value, AV_DICT_DONT_STRDUP_VAL);
}
avio_skip(pb, end - avio_tell(pb));
} else {
av_log(s, AV_LOG_DEBUG, "unknown guid: "FF_PRI_GUID"\n", FF_ARG_GUID(guid)); |
79b70e47 |
avio_skip(pb, FFALIGN(size, INT64_C(8)) - 24); |
14d50c19 |
} |
8f771e76 |
} |
14d50c19 |
if (!data_ofs)
return AVERROR_EOF;
ff_metadata_conv_ctx(s, NULL, wav_metadata_conv);
ff_metadata_conv_ctx(s, NULL, ff_riff_info_conv);
handle_stream_probing(st);
st->need_parsing = AVSTREAM_PARSE_FULL_RAW;
avio_seek(pb, data_ofs, SEEK_SET); |
8f771e76 |
|
fcbdc44f |
set_spdif(s, wav);
|
8f771e76 |
return 0;
}
|
66355be3 |
AVInputFormat ff_w64_demuxer = { |
dfc2c4d9 |
.name = "w64", |
6774247a |
.long_name = NULL_IF_CONFIG_SMALL("Sony Wave64"), |
31c54711 |
.priv_data_size = sizeof(WAVDemuxContext), |
dfc2c4d9 |
.read_probe = w64_probe,
.read_header = w64_read_header,
.read_packet = wav_read_packet,
.read_seek = wav_read_seek, |
20234a4b |
.flags = AVFMT_GENERIC_INDEX, |
13f57a4d |
.codec_tag = (const AVCodecTag * const []) { ff_codec_wav_tags, 0 }, |
740e89cf |
}; |
8f771e76 |
#endif /* CONFIG_W64_DEMUXER */ |