Lair Of The Multimedia Guru


FFmpegs Huffyuv

In the last few weeks FFmpegs huffyuv codec has grown the ability to encode and decode a much broader list of pixel formats. From planar rgb variants 4:4:4 YUV to 4:1:0 YUV and bit depths up to 16bit and alpha support.
One might ask why anyone cares about all this, the awnser is simple

1 thread YUV420 10bit, matrixbench
FFv1 Huffyuv
encode fps 63fps 281fps
decode fps 82fps 418fps
filesize 478mb 765mb

Encoding parameters used:
-an -threads 1 -pix_fmt yuv420p10le -strict -2 -vcodec ffvhuff -context 1
-an -threads 1 -pix_fmt yuv420p10le -strict -2 -vcodec ffv1

6 threads YUV420 10bit, matrixbench
FFv1 Huffyuv
encode fps 269fps 1173fps
decode fps 386fps 2675fps
filesize 480mb 771mb

Encoding parameters used:
-threads 6 -an -pix_fmt yuv420p10le -strict -2 -vcodec ffvhuff -pass 2 test.nut
-threads 6 -an -pix_fmt yuv420p10le -strict -2 -vcodec ffv1 -level 3 -slices 6 test1.nut

As can be seen above huffyuv while it doesnt even get close to ffv1 in terms of compression even though i used per frame huffman tables and 2pass mode in the 2 tests, its simply much faster.

Filed under: Entropy Coding,FFmpeg,VideoCoding — Michael @ 02:27

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