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| author | Aman Gupta <aman@tmm1.net> | 2018-05-15 11:26:07 -0700 |
|---|---|---|
| committer | Aman Gupta <aman@tmm1.net> | 2018-05-17 12:03:22 -0700 |
| commit | 5dfeb7f0811c0b64d68e80296067fa8fed57beee (patch) | |
| tree | c2ec0062b74dbb00be030632b4111f21541e2f36 /libavformat/mpegts.c | |
| parent | 2734f8d63a3864d09f9e1359a8f5af4f13c70ac9 (diff) | |
| download | ffmpeg-streaming-5dfeb7f0811c0b64d68e80296067fa8fed57beee.zip ffmpeg-streaming-5dfeb7f0811c0b64d68e80296067fa8fed57beee.tar.gz | |
avformat/mpegts: tag video streams with still images
Parses the video_stream_descriptor (H.222 2.6.2) to look
for the still_picture_flag. This is exposed to the user
via a new AV_DISPOSITION_STILL_IMAGE.
See for example https://tmm1.s3.amazonaws.com/music-choice.ts,
whose video stream only updates every ~6 seconds.
Signed-off-by: Aman Gupta <aman@tmm1.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/mpegts.c')
| -rw-r--r-- | libavformat/mpegts.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c index 9cc00c7..fc9bb39 100644 --- a/libavformat/mpegts.c +++ b/libavformat/mpegts.c @@ -1683,6 +1683,11 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type mpegts_find_stream_type(st, desc_tag, DESC_types); switch (desc_tag) { + case 0x02: /* video stream descriptor */ + if (get8(pp, desc_end) & 0x1) { + st->disposition |= AV_DISPOSITION_STILL_IMAGE; + } + break; case 0x1E: /* SL descriptor */ desc_es_id = get16(pp, desc_end); if (desc_es_id < 0) |
