FFmpeg/tests/ref/lavf/ts

cca6bca512605bbde20b7aa5cccf4850 *./tests/data/lavf/lavf.ts
407020 ./tests/data/lavf/lavf.ts
./tests/data/lavf/lavf.ts CRC=0x71287e25
avformat/mpegtsenc: Changed Video PES packet length to 0. The rational for this is another issue that plex has exposed. When it is conducting a transcode of video to HLS for streaming, my father noticed artifacts when played on his GoogleTV (NSZ-GT1). He sent me a test file and I reproduced it on my device of the same model. It is important to note that the artifacts were not present when streaming to VLC or QuickTime Player. I copied the command-line that plex used, and conducted all of the following tests using FFmpeg git. Transcode to HLS: artifacts on playback Transcode to TS: playback is fine Cat HLS segments into a single TS: playback is fine Segment single TS file to segments: artifacts on playback Segment single TS file to segments using Apple's HLS segmenter: playback is fine At this point I carefully examined the differences between Apple's HLS segmenter output and FFmpeg's. Among the considerable differences, I noticed that the video PES packets always had a 0 length. So I continued: Transcode to HLS using FFmpeg with 0 length PES packets: playback is fine. Segment single TS to segments with 0 length PES packets: playback is fine. All failures mentioned are only on the GTV since it is the only player on which I could reproduce artifacts. I only tested the GTV, VLC, and QuickTime Player though, so my test case is limited. I do not know if other players exhibit this issue. Since it was useful last time, I have uploaded the test file as hls_pes_packet_length.m4v along with its associated txt file which contains the transcode command-line that was used. Reviewed-by: Kieran Kunhya <kierank@obe.tv> Signed-off-by: Michael Niedermayer <michaelni@gmx.at> 2014-04-12 04:26:46 +00:00			`cca6bca512605bbde20b7aa5cccf4850 *./tests/data/lavf/lavf.ts`
mpegvideo_enc: reduce QMAT_SHIFT to avoid overflow in dnxhd Signed-off-by: Michael Niedermayer <michaelni@gmx.at> 2012-09-20 20:29:03 +00:00			`407020 ./tests/data/lavf/lavf.ts`
ffmpeg: remove obsolete workaround in trim insertion. The bug it was working seems to have been fixed. This change causes ffmpeg to use the trim filter to implement the -t option. FATE tests are updated due to the more accurate handling of the last packets. 2013-08-07 12:46:07 +00:00			`./tests/data/lavf/lavf.ts CRC=0x71287e25`