gst-video: Optimize following functions with simd (!3002) · Merge requests · GStreamer / gstreamer · GitLab

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The migration is almost done, at least the rest should happen in the background. There are still a few technical difference between the old cluster and the new ones, and they are summarized in this issue. Please pay attention to the TL:DR at the end of the comment.

jinboson requested to merge jinboson/gstreamer:main into main Sep 08, 2022

video_orc_convert_I420_BGRA

Performance test:

Test video: bbb_sunflower_1080p_30fps_normal.mp4 (yuv420p)
Test cmd: gst-launch-1.0 filesrc location=bbb_sunflower_1080p_30fps_normal.mp4 ! qtdemux ! queue ! h264parse ! avdec_h264 ! videoconvert ! ximagesink
Test machine: loongarch 3A5000 4 cores 2.5GHz
The cpu overhead of the Test cmd process: 91%-121%(before), 30%-54%(after)

video_orc_convert_AYUV_ARGB, video_orc_unpack_Y444, video_orc_pack_BGRA

Performance test:

Test video: bbb_sunflower_1080p_30fps_normal_yuv444p.mp4 (yuv444p, created by ffmpeg)
Test cmd: gst-launch-1.0 filesrc location=bbb_sunflower_1080p_30fps_normal_yuv444p.mp4 ! qtdemux ! queue ! h264parse ! avdec_h264 ! videoconvert ! ximagesink
Test machine: loongarch 3A5000 4 cores 2.5GHz
The cpu overhead of the Test cmd process: 99%-140%(before), 44%-92%(after)

After the optimizations, the according video rendering becomes more smoothly.

Edited Sep 08, 2022 by jinboson