the 10bit flavours have an x designation at the end - eg. See ffmpeg -h encoder=libx265 for additional supported pixel formats. XMedia Recode (free program) does avery good job at transcoding this. Other 10-bit pixel formats supported by libx265 are yuv422p10le & yuv444p10le, but your player may not like these. Handbrake/vidcoder definitely uses an 8bit intermediate stage this is well documented. Uses the format filter to choose the yuv420p10le pixel format to create 10-bit output. If there is an 8bit step, you will get gaps in the data such as 0,4,8, instead of 0,1,2,3,4,6,7,8, which of course results in more banding, less accuracy, worse compression. See FFmpeg Wiki: HEVC / H.265 for more info on -crf and -preset.ġ2-bit HEVC to 10-bit HEVC ffmpeg -i input -map 0 -c:v libx265 -crf 20 -vf format=yuv420p10le -c:a copy output.mkv

Add the -preset option if you want to adjust encoding speed. No need for the format filter in this case.ġ0-bit/12-bit HEVC to 8-bit HEVC ffmpeg -i input -map 0 -c:v libx265 -crf 20 -vf format=yuv420p -c:a copy output.mkvĪdjust the -crf value to provide the desired level of quality. Uses the format filter to choose the yuv420p pixel format to create 8-bit output.ġ0-bit/12-bit HEVC to 10-bit H.264 ffmpeg -i input -map 0 -c:v libx264 -crf 18 -c:a copy output.mkv See FFmpeg Wiki: H.264 for more info on -crf and -preset. See FFmpeg Wiki: Map.Īdjust the -crf value to provide the desired level of quality. map 0 will include all streams (default stream selection only selects 1 stream per type). 10-bit/12-bit HEVC to 8-bit H.264 ffmpeg -i input -map 0 -c:v libx264 -crf 18 -vf format=yuv420p -c:a copy output.mkv

Xmedia recode lossless 10bit to 8bit