The file will be encoded three times, the first one will encode only the audio audio and calculate the video bitrate (1st pass duration is about 1h30 on a G4 for an average movie).
Encode in 3-pass mode, allowing better control on movie final size.Handbrake or VLC can be used to convert old codecs to new H.264 or H.265 wrapped as common mp4 (or its very close cousin m4v or mov). VLC and IINA should have no issues with playing any decent new or old codec. Google might use webm wrapper and open source community Matroska mkv wrapper that might have to be converted to a more common mp4 (or its very close cousin m4v or mov) wrapper (usually losslessly with ffmpeg although subtitles might be unsupported in other wrappers). Google, Youtube, Facebook might use VP8 or VP9 video and OPUS audio codecs that might have to be converted to more common H.264/265 and AAC/PCM codecs.
Opens anyway in Big Sur but fails in Mojave. There is a lossless fix if you install ffmpeg and add '-tag:v hvc1' without re-encoding in the Terminal:įfmpeg -i input.mp4 -vcodec copy -acodec copy -tag:v hvc1 output.mp4Ĭhroma subsampling 4:2:0 (Bit depth 8 bits) plays OK.Ĭhroma subsampling 4:2:2 (Bit depth 10 bits) has an error message "This file contains media which isn't compatible with QuickTime Player". H.265 Codec ID hev1 has an error message "This file contains media which isn't compatible with QuickTime Player" and plays audio only. You can check all those pesky details with apps like Invisor (my favorite because it neatly highlights differences) or MediaInfo. Currently macOS 11 Big Sur is more forgiving but it still has the following issues with "Codec ID" and "Chroma subsampling" options.
QuickTime Player refuses to play some H.265/HEVC flavors. Is it the "old" H.264 (AVC Advanced Video Coding) or new H.265 (High Efficiency Video Coding HEVC) that needs macOS 10.13 High Sierra or later? Yes, this is messy and all is not related to the original question. What is the video codec and other info? 4:2:2?
0 kommentar(er)
