Encode alpha video to WebM ?
Closed this issue · 1 comments
juntaosun commented
Chrome 31 now supports video alpha transparency in WebM.
"webm-muxer" How to Encoder alpha videos ?
VideoEncoderConfig：
alpha: 'keep', // keep alpha channel
It doesn't work
Vanilagy commented
Added a config option to enable flagging the video as containing alpha data. However, as it seems, Chromium itself does not support encoding alpha video as of today: https://chromium.googlesource.com/chromium/src/+/00d126142a32c598a0874ef80ba27a3591cd2b2c/third_party/blink/renderer/modules/webcodecs/video_encoder.cc#187
Nothing I can do about that. Bummer!