crf stands for constant rate factor. Allowed values are between 0 and 51, default is 23. To get better quality, use a lower number. The recommended start value, if the default does not work for you, is 18. 0 is lossless.
You can read on the topic here: https://trac.ffmpeg.org/wiki/Encode/H.265 URW On Mon, Jul 24, 2017 at 12:57 PM, Phil Rhodes < phil_rhodes-at-rocketmail....@ffmpeg.org> wrote: > I'd be interested to know what "crf 23" actually means. > How do I get it to do, say, 2.5Mbps? > P > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
