Quote:
Originally Posted by PCU
Even x264 isn't really lossless but it's close enough that we can let it slide but the x265 values really surprise me.
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Then there is some user error somewhere. Such as timestamps off or jitter, or not using --lossless switch for x265 (crf 0 is not lossless for x265)
What pixel format ?
What type of content ?
For 8bit 4:2:0, it will be x264 or ffv1 using long gop
Long GOP will almost always produce better results, so that rules out things like lagarith. The exception will be null frames. Content that has lots of identical frames. Lagarith "null frames" option will put it over the top