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${ noResults }
3 Commits (6525fe4e773b054bc4d48fd06208262a8040e592)
Author | SHA1 | Message | Date |
---|---|---|---|
Anton Khirnov | e0da916b8f |
fftools/ffmpeg: optimize inter-thread queue sizes
Use 8 packets/frames by default rather than 1, which seems to provide better throughput. Allow -thread_queue_size to set the muxer queue size manually again. |
12 months ago |
Anton Khirnov | d119ae2fd8 |
fftools/ffmpeg: convert to a threaded architecture
Change the main loop and every component (demuxers, decoders, filters, encoders, muxers) to use the previously added transcode scheduler. Every instance of every such component was already running in a separate thread, but now they can actually run in parallel. Changes the results of ffmpeg-fix_sub_duration_heartbeat - tested by JEEB to be more correct and deterministic. |
1 year ago |
Jan Ekström | 9a820ec8b1 |
ffmpeg: add video heartbeat capability to fix_sub_duration
Splits the currently handled subtitle at random access point packets that can be configured to follow a specific output stream. Currently only subtitle streams which are directly mapped into the same output in which the heartbeat stream resides are affected. This way the subtitle - which is known to be shown at this time can be split and passed to muxer before its full duration is yet known. This is also a drawback, as this essentially outputs multiple subtitles from a single input subtitle that continues over multiple random access points. Thus this feature should not be utilized in cases where subtitle output latency does not matter. Co-authored-by: Andrzej Nadachowski <andrzej.nadachowski@24i.com> Co-authored-by: Bernard Boulay <bernard.boulay@24i.com> Signed-off-by: Jan Ekström <jan.ekstrom@24i.com> |
2 years ago |
Jan Ekström | 0a83ecbf48 |
tests: add test for ffmpeg's fix_sub_duration feature
This long-existing feature calculates subtitle durations by keeping it around until the following subtitle is decoded, and then utilizes the following subtitle's pts as the end point of the previous one. Signed-off-by: Jan Ekström <jan.ekstrom@24i.com> |
3 years ago |