#7965: Support for HEVC with Alpha -------------------------------------+----------------------------------- Reporter: leemartin | Owner: (none) Type: enhancement | Status: open Priority: wish | Component: avcodec Version: git-master | Resolution: Keywords: hevc | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+----------------------------------- Comment (by Igor): Replying to [comment:14 logiclrd]:
I have found the following sequence which //seems// to produce an MP4 file with HEVC with alpha content, but I am not on a Mac and have found no way to test it because the decoding support described by this ticket is not yet implemented. :-)
{{{ x265 --input-res 606x692 --fps 30000/1001 --alpha --crf 20 Zap.yuva420p Zap.hevc mkvmerge Zap.hevc -o Zap.mkv ffmpeg -itsscale 0.3336666666 -i Zap.mkv -c copy -vtag hvc1 Zap.mp4 -y }}}
I also tried using `x265` cli to encode separately into `*.hevc` and then package into mp4, but the result is equal to using `ffmpeg` directly. I see you use `mkvmerge`, why this interim step is needed? -- Ticket URL: <https://trac.ffmpeg.org/ticket/7965#comment:16> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker