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FFmpeg/tests

History

Graham Booker 60fcc19b90 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>		11 years ago
..
fate	Merge commit '911fa05b514e1be009e00b79d7004b93717c023b'	11 years ago
filtergraphs	Merge remote-tracking branch 'qatar/master'	11 years ago
ref	avformat/mpegtsenc: Changed Video PES packet length to 0.	11 years ago
Makefile	Fix TARGET_SAMPLES and TARGET_PATH for some fate tests.	11 years ago
audiogen.c	Merge remote-tracking branch 'qatar/master'	12 years ago
base64.c	…
copycooker.sh	…
fate-run.sh	Fix TARGET_SAMPLES and TARGET_PATH for some fate tests.	11 years ago
fate-update.sh	…
fate-valgrind.supp	…
fate.sh	tests/fate: fix fate on branches different from origin/master	11 years ago
ffserver-regression.sh	…
ffserver.conf	…
ffserver.regression.ref	…
lavf-regression.sh	Merge commit '60fd7d36c47d62d4c603bf16c213b1a924f5cfcf'	11 years ago
lena.pnm	…
md5.sh	Merge commit '3dc06b6972cf389269e9c36ff0a4373f80f7149b'	12 years ago
regression-funcs.sh	Fix TARGET_SAMPLES and TARGET_PATH for some fate tests.	11 years ago
rotozoom.c	…
test.ffmeta	fate/ffprobe: add some stream metadata.	12 years ago
tiny_psnr.c	tests/tiny_psnr: Print information about the supported sample types in the help and error texts	11 years ago
tiny_ssim.c	tests/tiny_ssim: drop isatty() support	11 years ago
utils.c	…
videogen.c	…