Hello Carl-san, > 2019/01/16 午前9:46、Carl Eugen Hoyos <[email protected]>のメール: > > 2018-12-05 15:54 GMT+01:00, 桃源老師 <[email protected]>: > >> I recently noticed that ffmpeg can use hardware acceleration via >> videotoolbox on Mac. > > Since 2016;-)
My god!! ;-) > >> So my question is is there equivalent parameter for CRF in hevc_videotoolbox >> codec or not. In another word, how to set quality of hardware acceleration >> of video? > > Only constant bitrate (or whatever the Apple driver does with the > bitrate, could be adaptive bitrate or similar) is currently supported > for the videotoolbox encoder. I understand. Thanks for your answer. // Miya aka. TougenRoushi
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