Fei Wang <fei.w.w...@intel.com> 于2021年3月31日周三 上午10:11写道： > > Async depth will allow qsv filter cache few frames, and avoid force > switch and end filter task frame by frame. This change will improve > performance for some multi-task case, for example 1:N transcode( > decode + vpp + encode) with all QSV plugins. > > Performance data test on my Coffee Lake Desktop(i7-8700K) by using > the following 1:8 transcode test case improvement: > 1. Fps improved from 55 to 130. > 2. Render/Video usage improved from ~61%/~38% to ~100%/~70%.(Data get > from intel_gpu_top) > > test CMD: > ffmpeg -v verbose -init_hw_device qsv=hw:/dev/dri/renderD128 > -filter_hw_device \ > hw -hwaccel qsv -hwaccel_output_format qsv -c:v h264_qsv -i 1920x1080.264 > \ > -vf 'vpp_qsv=w=1280:h=720:async_depth=4' -c:v h264_qsv -r:v 30 -preset 7 -g > 33 -refs 2 -bf 3 -q 24 -f null - \ > -vf 'vpp_qsv=w=1280:h=720:async_depth=4' -c:v h264_qsv -r:v 30 -preset 7 -g > 33 -refs 2 -bf 3 -q 24 -f null - \ > -vf 'vpp_qsv=w=1280:h=720:async_depth=4' -c:v h264_qsv -r:v 30 -preset 7 -g > 33 -refs 2 -bf 3 -q 24 -f null - \ > -vf 'vpp_qsv=w=1280:h=720:async_depth=4' -c:v h264_qsv -r:v 30 -preset 7 -g > 33 -refs 2 -bf 3 -q 24 -f null - \ > -vf 'vpp_qsv=w=1280:h=720:async_depth=4' -c:v h264_qsv -r:v 30 -preset 7 -g > 33 -refs 2 -bf 3 -q 24 -f null - \ > -vf 'vpp_qsv=w=1280:h=720:async_depth=4' -c:v h264_qsv -r:v 30 -preset 7 -g > 33 -refs 2 -bf 3 -q 24 -f null - \ > -vf 'vpp_qsv=w=1280:h=720:async_depth=4' -c:v h264_qsv -r:v 30 -preset 7 -g > 33 -refs 2 -bf 3 -q 24 -f null - > > Signed-off-by: Fei Wang <fei.w.w...@intel.com> > --- > Change: > 1. Add test data in commit message. > 2. Rmove some duplicate code.
LGTM and applied. Thanks. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
