Sure it is. That’s why it’s called “constant visual quality”. The preset has (almost) nothing to do with quality. It only affects speed.
> 在 2021年8月7日，下午5:06，Bill Crockett <[email protected]> 写道： > > First of all, I am not doing 2 pass encoding. I am using the CRF option. > > They say for constant quality encoding, you will save bitrate by choosing a > slower preset. A slower preset will provide better compression. > > ultrafast > superfast > veryfast > faster > fast > medium – default preset > slow > slower > veryslow > placebo > > I do not care about compression or files size. But I do care about quality. > > If I choose a CRF of 20, and I use the "veryslow" preset, the quality will > still be the same if I choose a CRF of 20 and use the "superfast" preset? > > The same with this. If I choose a CRF of 10, and I use the "veryslow" > preset, the quality will still be the same if I choose a CRF of 10 and use > the "superfast" preset? > > Is this correct about the quality please? > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
