may be this? https://www.cinelerra-gg.org/bugtracker/view.php?id=504 not sure if we can speed up decoding in libavcoded - mplayer seems to seek much faster but I guess it can skip decoding whole frames for that and our pipeline not ready for this, because how you will deal with empty frames after such fast seeking? I mean you can hit any frame in arbitrary place, so decoding it due to b and p frames might take a while, so randomly-placed edit probably seeks/decodes a lot just for avoiding empty frm problem (while for playback there is toggle about playing every frame or not. But I think it only drops at output?) пн, 30 янв. 2023 г., 14:16 Stefan de Konink via Cin < [email protected]>:
On Monday, January 30, 2023 11:16:03 AM CET, Stefan de Konink via Cin wrote:
If it would help I am happy to create some projects 'as bugs' for QA-purposes.
The ultimate cause of the mentioned issue is the cache size (Preference > Performance > Cache size (MB)) being reduced to 1MB. When increasing it back to the default value of 256 the issue is mitigated.
But I do wonder: does this uncover a performance issue that should be documented? Would it really take a full second to compute the frame order?
-- Stefan -- Cin mailing list [email protected] https://lists.cinelerra-gg.org/mailman/listinfo/cin