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In most codecs the entropy coder doesn't reset across frames, so there is enough freedom that you can do multithreaded decoding. ffmpeg has frame-based and slic
by astrange 3y ago
In most codecs the entropy coder doesn't reset across frames, so there is enough freedom that you can do multithreaded decoding. ffmpeg has frame-based and slice-based threading for this.
It also has a lossless codec ffv1 where the entropy coder doesn't reset, so it truly can't be multithreaded.