I’ve had luck forcing 5.1 with channel_layout: -filter_complex "channelmap=channel_layout=5.1" -c:a aac QuickTime will play multi-channel AAC, but it’s more finnicky, and a video with even a slightly “wrong” audio configuration won’t be openable. The samples above use -c:a eac3, which QuickTime seems to handle more easily than AAC. Speeds mean that FFmpeg finishes far more quickly.
Still small enough, and the significantly faster encoding Probably delete (say you want them for a single trip), Libx265 for any videos that you want to keep around, butįor videos that you’d prefer encoded quickly and will The problem, at the cost of producing an even larger finalįrom what I can tell, the right compromise is to use Specifying a target video bitrate works around Totally unwatchable, with visual artifacts and blurrinessĮverywhere. And when I say garbage, I mean garbage as in The selected video profile ( main or main10), unless Iįorced a higher bitrate, the output video quality would be Get away without doing that, but found that regardless of Specified a target bitrate with -b:v 6000k. You might have noticed that for hevc_videotoolbox I
libx265 produces a much smaller file size,īut hevc_videotoolbox runs significantly faster (5 to 10 Libx265 encodes via the CPU while hevc_videotoolbox I’ll walk through some caveats and explanations for those The invocations above are all you really need to know, but Produces a larger file size: ffmpeg -vcodec hevc_videotoolbox -b:v 6000k -tag:v hvc1 -c:a eac3 -b:a 224k -i Or for GPU-based encoding, which is much faster, but Invocation that worked well for me: ffmpeg -c:v libx265 -preset fast -crf 28 -tag:v hvc1 -c:a eac3 -b:a 224k -i Scrubs as well, or uses laptop CPU/battery as efficiently.įor the copy/pasters out there, here’s the FFmpeg There’s never been another video player in history that
Versatility makes it incredibly frustrating to work with, Is in the unique position of being simultaneously the bestĪnd worst video player ever made. It might seemĬrazy to want to do this, but I still find that QuickTime I wanted to produce something that was QuickTimeĬompatible, which means complying with Apple’s very On laptops, which still tend to come with SSDs of modest That sort of space saving should be interesting toĮverybody, but especially for those who carry videos around Similar video quality as H.264 that are about half the The FFmpeg wikiĮstimates that you should be able to produce video files of This weekend I experimented a little with re-encoding videoĪs H.265/HEVC, now that the codec has good support on both
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