Nuo Mi

Setup WSL ci

2

Please follow https://github.com/marketplace/actions/setup-wsl to set up ci for WSL

https://github.com/ffvvc/FFmpeg/blob/main/libavcodec/vvc_thread.c#L570 This is a FFMPEG Windows compatibility issue, mainly because https://github.com/ffvvc/FFmpeg/blob/main/compat/atomics/win32/stdatomic.h#L104 does not follow the spec, it accepts automic_int(intptr_t) instead of int.

We have many temporary buffers in VVCLocalContext, https://github.com/ffvvc/FFmpeg/blob/b4e85c10055500f8553d36f24b69399469387234/libavcodec/vvc_ctu.h#L279-L291 We do not need most of them since we have [different ](https://github.com/ffvvc/FFmpeg/blob/b4e85c10055500f8553d36f24b69399469387234/libavcodec/vvc_thread.c#L527)local contexts for inter, recon, deblock, sao and alf. 2~4 of...

https://github.com/ffvvc/tests/tree/main/conformance/failed/WRAP

https://github.com/ffvvc/tests/tree/main/conformance/failed/VB

Support fields

11

https://github.com/ffvvc/tests/tree/main/conformance/failed/FIELD

see comments from http://ffmpeg.org/pipermail/ffmpeg-devel/2023-January/305660.html

Optimze ALF

2

For https://github.com/ffvvc/tests/blob/main/performance/RitualDance_1920x1080_60_10_420_37_RA.266, ALF use about 30~40% cpu resources. May need to vectorize the alf filter the following table is an old one, please do "./ffmpeg -i RitualDance_1920x1080_60_10_420_37_RA.266 -f rawvideo /dev/null...

https://github.com/ffvvc/tests/tree/main/conformance/failed/CROP

change alf step size to 8.

1

@QSXW current ALF step size is 4. could you help set ALF step size to 8? thank you From Benjamin Bross: > for ALF where functions are in increments of...