Chiebot-Mirror/FFmpeg - FFmpeg - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Anton Khirnov	4740fea7dd	fftools/ffmpeg: rework -shortest implementation The -shortest option (which finishes the output file at the time the shortest stream ends) is currently implemented by faking the -t option when an output stream ends. This approach is fragile, since it depends on the frames/packets being processed in a specific order. E.g. there are currently some situations in which the output file length will depend unpredictably on unrelated factors like encoder delay. More importantly, the present work aiming at splitting various ffmpeg components into different threads will make this approach completely unworkable, since the frames/packets will arrive in effectively random order. This commit introduces a "sync queue", which is essentially a collection of FIFOs, one per stream. Frames/packets are submitted to these FIFOs and are then released for further processing (encoding or muxing) when it is ensured that the frame in question will not cause its stream to get ahead of the other streams (the logic is similar to libavformat's interleaving queue). These sync queues are then used for encoding and/or muxing when the -shortest option is specified. A new option – -shortest_buf_duration – controls the maximum number of queued packets, to avoid runaway memory usage. This commit changes the results of the following tests: - copy-shortest[12]: the last audio frame is now gone. This is correct, since it actually outlasts the last video frame. - shortest-sub: the video packets following the last subtitle packet are now gone. This is also correct.	3 years ago
Anton Khirnov	9543161800	framehash: convert to new channel layout API Signed-off-by: James Almer <jamrial@gmail.com>	3 years ago
Andreas Rheinhardt	4a6aece703	fate/ffmpeg: Fix shortest tests The mpeg4 encoder is slice-threaded and its output depends upon the number of threads used. Therefore all tests of this encoder use a hardcoded number of threads (ENC_OPTS in fate-run.sh contains "-threads 1"; only the vsynth%-mpeg4-thread tests override this for the mpeg4 encoder, but they also use a hardcoded value to be consistent across different systems); only the new shortest and copy-shortest[12] (implicitly due to the sample used) tests don't and this leads to FATE-failures. Fix this by explicitly setting the thread count. Also switch the shortest test to framecrc, because hashing side data is itchy even though the side data used here (AV_PKT_DATA_QUALITY_STATS) has a defined endianness. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	3 years ago
James Almer	6507e96e71	fate/ffmpeg: add some more flags to the shortest tests Signed-off-by: James Almer <jamrial@gmail.com>	3 years ago
James Almer	686c7c132d	fate/ffmpeg: add missing bitexact flags to the shortest tests Should fix fate failures on some targets. Signed-off-by: James Almer <jamrial@gmail.com>	3 years ago
James Almer	bb0a28560d	fate/ffmpeg: add tests for shortest option Signed-off-by: James Almer <jamrial@gmail.com>	3 years ago