What is the difference between -crf and -cq parameters of ffmpeg? I am trying to compress 1080p h264 videos into 1080p h265 videos with high quality and low size. I have noticed that in some guides they use -crf while in others they use -cq + -qmin + -qmax.

I have tried researching the difference and all I could come with is that with -crf the size is a bit lower because it reduces data for scenes with fast actions that the person watching would not notice while with -cq that is not the case. Is that it? Are there any more differences? If I have used a number with -crf would the result be similar if I were to use the same number with -cq?

Thank you.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.