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Code Issues Releases Activity

avformat/flvdec: add flv_ignore_prevtag option into flvdec

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Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
This commit is contained in:
Steven Liu 2018-08-07 15:48:23 +08:00
parent d54ae9b782
commit d37125fb91
2 changed files with 7 additions and 0 deletions
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3
doc/demuxers.texi
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@ -269,6 +269,9 @@ ffmpeg -f live_flv -i rtmp://<any.server>/anything/key ....
@table @option
@item -flv_metadata @var{bool}
Allocate the streams according to the onMetaData array content.
@item -flv_ignore_prevtag @var{bool}
Ignore the size of previous tag value.
@end table
@section gif

4
libavformat/flvdec.c
View File

@ -44,6 +44,7 @@
typedef struct FLVContext {
const AVClass *class; ///< Class for private options.
int trust_metadata; ///< configure streams according onMetaData
int trust_datasize; ///< trust data size of FLVTag
int wrong_dts; ///< wrong dts due to negative cts
uint8_t *new_extradata[FLV_STREAM_TYPE_NB];
int new_extradata_size[FLV_STREAM_TYPE_NB];
@ -1250,6 +1251,7 @@ retry_duration:
leave:
last = avio_rb32(s->pb);
if (!flv->trust_datasize) {
if (last != orig_size + 11 && last != orig_size + 10 &&
!avio_feof(s->pb) &&
(last != orig_size || !last) && last != flv->sum_flv_tag_size &&
@ -1262,6 +1264,7 @@ leave:
goto retry;
}
}
}
return ret;
}
@ -1277,6 +1280,7 @@ static int flv_read_seek(AVFormatContext *s, int stream_index,
#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
static const AVOption options[] = {
{ "flv_metadata", "Allocate streams according to the onMetaData array", OFFSET(trust_metadata), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
{ "flv_ignore_prevtag", "Ignore the Size of previous tag", OFFSET(trust_datasize), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
{ "missing_streams", "", OFFSET(missing_streams), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 0xFF, VD | AV_OPT_FLAG_EXPORT | AV_OPT_FLAG_READONLY },
{ NULL }
};