Use a single ffmpeg process to calculate VMAF #177
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I get identical vmaf scores for av1 sample-encodes across a small selection of test videos. This is true for simple usage, I also tested with |
This was referenced Jan 14, 2024
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Use a single ffmpeg process to calculate VMAF replacing multi process piping.
Previously separate ffmpeg processes were used to convert pixel format and to run --reference-vfilter. This PR changes this to a single ffmpeg call with appropriate
-filter_complexargs.A simple vmaf call will now use -filter_complex something like:
This simplifies the code removing platform specific piping code. It also should make vmaf results easier to reproduce by users.