[Libav-user] Hardware decoding is slow

[王水秀]

Hi, when I use ffmpeg for hard decoding on Apple m1, the hard decoding speed is too slow to decode 8K20fps h264 video smoothly.
And QuickTime player and other players can play 8K video smoothly at 2-4 times speed. I need help, what else do I need to set, or is this a bug in the hard decoding (videotoolbox) part?
thanks.
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