Quote:
Originally Posted by Asmodian
What about when using two pass?
Using crf at settings which cause it to constantly hit the VBV limits is not an optimal rate control situation. VBV is supposed to be a rare protection to prevent buffer underflow/overflow issues, not something that limits the size of every frame. I think this is an issue of inappropriate settings.
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So if given a bitrate,how to choose a proper crf? For example,give a 720p video and assign 1.4Mbps, which crf should set?