h264_videotoolbox did the trick Two differences from libx264
1 -crf was not a recognized option. I switched it out for an equivalent -v:b [bitrate]. All seems fine 2 -pix_fmt yuv420p was also not a recognized option. Console note says it uses mpeg settings. Doesn’t seen to be a significant issue. Notes aside it’s a big improvement : h264_videotoolbox in Mac processses at about 4X the speed of libx264 Thanks Ted! On Feb 15, 2019, at 21:54, Ted Park <[email protected]> wrote: >> Right now, starting with 3840x2160 ProRes files converting to h.264, I'm >> getting 7.4fps. >> Would love to find a way to speed that up. > > Use the h264_videotoolbox encoder for hw accelerated encoding on Mac. > >> A quick survey of forums gives a lot of contradictory answers. >> - Can't be done using Mac OS >> - Could be done using Mac OS prior to Mojave, but now no longer possible. > > This is the first I’m hearing anything like that, I didn’t notice any changes > after updating. Maybe it’s just certain cards? _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
