[FFmpeg-devel] Optimize VP8,VP9,WMV3 decoding for loongarch.

[Hao Chen]

./ffmpeg -i ../9_vp8_1080p_30fps_2Mbps.webm -f rawvideo -y /dev/null -an
before: 210fps
after : 585fps
ffmpeg -i ../10_vp9_1080p_30fps_3Mbps.webm -f rawvideo -y /dev/null -an
before:170fps
after :294fps
./ffmpeg -i 11_wmv3_720p_24fps_7Mbps.wmv -f rawvideo -y /dev/null -an
before:131fps
after :229fps

[PATCH 1/4] avcodec: [loongarch] Optimize vp8_lpf/mc with LSX.
[PATCH 2/4] avcodec: [loongarch] Optimize vp9_mc/intra with LSX.
[PATCH 3/4] avcodec: [loongarch] Optimize vp9_lpf/idct with LSX.
[PATCH 4/4] avcodec: [loongarch] Optimize vc1dsp with LASX.