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matroskadec: parse the channel layout mask for FLAC

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It is commonly stored in a vorbiscomment block in codec private data.
This commit is contained in:
Anton Khirnov 2014-05-26 12:48:56 +02:00
parent 4efdadc8ec
commit 23f741f793
11 changed files with 53 additions and 12 deletions
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3
libavformat/Makefile
View File

@ -166,7 +166,8 @@ OBJS-$(CONFIG_LXF_DEMUXER) += lxfdec.o
OBJS-$(CONFIG_M4V_DEMUXER) += m4vdec.o rawdec.o
OBJS-$(CONFIG_M4V_MUXER) += rawenc.o
OBJS-$(CONFIG_MATROSKA_DEMUXER) += matroskadec.o matroska.o \
isom.o rmsipr.o
isom.o rmsipr.o \
oggparsevorbis.o vorbiscomment.o
OBJS-$(CONFIG_MATROSKA_MUXER) += matroskaenc.o matroska.o \
isom.o avc.o hevc.o \
flacenc_header.o avlanguage.o wv.o

2
libavformat/flacdec.c
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@ -141,7 +141,7 @@ static int flac_read_header(AVFormatContext *s)
if (metadata_type == FLAC_METADATA_TYPE_VORBIS_COMMENT) {
AVDictionaryEntry *chmask;
if (ff_vorbis_comment(s, &s->metadata, buffer, metadata_size)) {
if (ff_vorbis_comment(s, &s->metadata, buffer, metadata_size, 1)) {
av_log(s, AV_LOG_WARNING, "error parsing VorbisComment metadata\n");
}

38
libavformat/matroskadec.c
View File

@ -55,6 +55,7 @@
#include "internal.h"
#include "isom.h"
#include "matroska.h"
#include "oggdec.h"
/* For ff_codec_get_id(). */
#include "riff.h"
#include "rmsipr.h"
@ -1443,6 +1444,7 @@ static int matroska_parse_flac(AVFormatContext *s,
MatroskaTrack *track,
int *offset)
{
AVStream *st = track->stream;
uint8_t *p = track->codec_priv.data;
int size = track->codec_priv.size;
@ -1454,6 +1456,42 @@ static int matroska_parse_flac(AVFormatContext *s,
*offset = 8;
track->codec_priv.size = 8 + FLAC_STREAMINFO_SIZE;
p += track->codec_priv.size;
size -= track->codec_priv.size;
/* parse the remaining metadata blocks if present */
while (size >= 4) {
int block_last, block_type, block_size;
flac_parse_block_header(p, &block_last, &block_type, &block_size);
p += 4;
size -= 4;
if (block_size > size)
return 0;
/* check for the channel mask */
if (block_type == FLAC_METADATA_TYPE_VORBIS_COMMENT) {
AVDictionary *dict = NULL;
AVDictionaryEntry *chmask;
ff_vorbis_comment(s, &dict, p, block_size, 0);
chmask = av_dict_get(dict, "WAVEFORMATEXTENSIBLE_CHANNEL_MASK", NULL, 0);
if (chmask) {
uint64_t mask = strtol(chmask->value, NULL, 0);
if (!mask || mask & ~0x3ffffULL) {
av_log(s, AV_LOG_WARNING,
"Invalid value of WAVEFORMATEXTENSIBLE_CHANNEL_MASK\n");
} else
st->codec->channel_layout = mask;
}
av_dict_free(&dict);
}
p += block_size;
size -= block_size;
}
return 0;
}

3
libavformat/oggdec.h
View File

@ -122,7 +122,8 @@ extern const struct ogg_codec ff_speex_codec;
extern const struct ogg_codec ff_theora_codec;
extern const struct ogg_codec ff_vorbis_codec;
int ff_vorbis_comment(AVFormatContext *ms, AVDictionary **m, const uint8_t *buf, int size);
int ff_vorbis_comment(AVFormatContext *ms, AVDictionary **m,
const uint8_t *buf, int size, int parse_picture);
static inline int
ogg_find_stream (struct ogg * ogg, int serial)

2
libavformat/oggparsecelt.c
View File

@ -81,7 +81,7 @@ static int celt_header(AVFormatContext *s, int idx)
} else if (priv && priv->extra_headers_left) {
/* Extra headers (vorbiscomment) */
ff_vorbis_comment(s, &st->metadata, p, os->psize);
ff_vorbis_comment(s, &st->metadata, p, os->psize, 1);
priv->extra_headers_left--;
return 1;
} else {

2
libavformat/oggparseflac.c
View File

@ -69,7 +69,7 @@ flac_header (AVFormatContext * s, int idx)
avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
} else if (mdt == FLAC_METADATA_TYPE_VORBIS_COMMENT) {
ff_vorbis_comment (s, &st->metadata, os->buf + os->pstart + 4, os->psize - 4);
ff_vorbis_comment (s, &st->metadata, os->buf + os->pstart + 4, os->psize - 4, 1);
}
return 1;

2
libavformat/oggparseogm.c
View File

@ -97,7 +97,7 @@ ogm_header(AVFormatContext *s, int idx)
} else if (bytestream2_peek_byte(&p) == 3) {
bytestream2_skip(&p, 7);
if (bytestream2_get_bytes_left(&p) > 1)
ff_vorbis_comment(s, &st->metadata, p.buffer, bytestream2_get_bytes_left(&p) - 1);
ff_vorbis_comment(s, &st->metadata, p.buffer, bytestream2_get_bytes_left(&p) - 1, 1);
}
return 1;

2
libavformat/oggparseopus.c
View File

@ -74,7 +74,7 @@ static int opus_header(AVFormatContext *avf, int idx)
if (priv->need_comments) {
if (os->psize < 8 || memcmp(packet, "OpusTags", 8))
return AVERROR_INVALIDDATA;
ff_vorbis_comment(avf, &st->metadata, packet + 8, os->psize - 8);
ff_vorbis_comment(avf, &st->metadata, packet + 8, os->psize - 8, 1);
priv->need_comments--;
return 1;
}

2
libavformat/oggparsespeex.c
View File

@ -79,7 +79,7 @@ static int speex_header(AVFormatContext *s, int idx) {
avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
} else
ff_vorbis_comment(s, &st->metadata, p, os->psize);
ff_vorbis_comment(s, &st->metadata, p, os->psize, 1);
spxp->seq++;
return 1;

2
libavformat/oggparsetheora.c
View File

@ -116,7 +116,7 @@ static int theora_header(AVFormatContext *s, int idx)
}
break;
case 0x81:
ff_vorbis_comment(s, &st->metadata, os->buf + os->pstart + 7, os->psize - 7);
ff_vorbis_comment(s, &st->metadata, os->buf + os->pstart + 7, os->psize - 7, 1);
case 0x82:
if (!thp->version)
return AVERROR_INVALIDDATA;

7
libavformat/oggparsevorbis.c
View File

@ -72,7 +72,8 @@ static int ogm_chapter(AVFormatContext *as, uint8_t *key, uint8_t *val)
}
int ff_vorbis_comment(AVFormatContext *as, AVDictionary **m,
const uint8_t *buf, int size)
const uint8_t *buf, int size,
int parse_picture)
{
const uint8_t *p = buf;
const uint8_t *end = buf + size;
@ -137,7 +138,7 @@ int ff_vorbis_comment(AVFormatContext *as, AVDictionary **m,
* 'METADATA_BLOCK_PICTURE'. This is the preferred and
* recommended way of embedding cover art within VorbisComments."
*/
if (!strcmp(tt, "METADATA_BLOCK_PICTURE")) {
if (!strcmp(tt, "METADATA_BLOCK_PICTURE") && parse_picture) {
int ret;
char *pict = av_malloc(vl);
@ -305,7 +306,7 @@ static int vorbis_header(AVFormatContext *s, int idx)
} else if (os->buf[os->pstart] == 3) {
if (os->psize > 8 &&
ff_vorbis_comment(s, &st->metadata, os->buf + os->pstart + 7,
os->psize - 8) >= 0) {
os->psize - 8, 1) >= 0) {
unsigned new_len;
int ret = ff_replaygain_export(st, st->metadata);