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My laptop can't handle 10bit H.265 / HEVC videos, so I'm looking to convert them to 10bit H.264. How do I do this using, say, ffmpeg, with the least quality loss? And how can I convert 10-bit H.265 to 8-bit H.265?

llogan
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HappyFace
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2 Answers2

118

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

  • -map 0 will include all streams (default stream selection only selects 1 stream per type). See FFmpeg Wiki: Map.

  • Adjust the -crf value to provide the desired level of quality. Add the -preset option if you want to adjust encoding speed. See FFmpeg Wiki: H.264 for more info on -crf and -preset.

  • Uses the format filter to choose the yuv420p pixel format to create 8-bit output.

10-bit/12-bit HEVC to 10-bit H.264

ffmpeg -i input -map 0 -c:v libx264 -crf 18 -c:a copy output.mkv

  • -map 0 will include all streams (default stream selection only selects 1 stream per type). See FFmpeg Wiki: Map.

  • Adjust the -crf value to provide the desired level of quality. Add the -preset option if you want to adjust encoding speed. See FFmpeg Wiki: H.264 for more info on -crf and -preset.

  • No need for the format filter in this case.

10-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.mkv

  • -map 0 will include all streams (default stream selection only selects 1 stream per type). See FFmpeg Wiki: Map.

  • Adjust the -crf value to provide the desired level of quality. Add the -preset option if you want to adjust encoding speed. See FFmpeg Wiki: HEVC / H.265 for more info on -crf and -preset.

  • Uses the format filter to choose the yuv420p pixel format to create 8-bit output.

12-bit HEVC to 10-bit HEVC

ffmpeg -i input -map 0 -c:v libx265 -crf 20 -vf format=yuv420p10le -c:a copy output.mkv

  • -map 0 will include all streams (default stream selection only selects 1 stream per type). See FFmpeg Wiki: Map.

  • Adjust the -crf value to provide the desired level of quality. Add the -preset option if you want to adjust encoding speed. See FFmpeg Wiki: HEVC / H.265 for more info on -crf and -preset.

  • Uses the format filter to choose the yuv420p10le pixel format to create 10-bit output. Other 10-bit pixel formats supported by libx265 are yuv422p10le & yuv444p10le, but your player may not like these. See ffmpeg -h encoder=libx265 for additional supported pixel formats.

llogan
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0

Handbrake can handle most anything.

The release notes mention 10-bit support.

The UI has all the options. I suggest you start there and get familiar with it.
See quick start guide.

There is also a CLI that can be downloaded here.
And the guide that has all the options laid out.

BlueGI
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