Posts by torokati44@mastodon.social
 (DIR) Post #AXRnGyRlpxNEHuI9rs by torokati44@mastodon.social
       2023-07-07T08:47:35Z
       
       1 likes, 1 repeats
       
       @zhuowei That's exactly how "VP6 with alpha" in Flash works. The color is premultiplied, and alpha is a separate greyscale stream. There's a constraint there that any frame in the color stream that is a keyframe (I frame) must also be a keyframe in the alpha stream. Other than that VP8/VP9 in WebM can handle alpha natively it seems...?
       
 (DIR) Post #AXRnH0RUPyKyTcAxhw by torokati44@mastodon.social
       2023-07-07T08:53:11Z
       
       1 likes, 0 repeats
       
       @zhuowei This is how it works in SWF/FLV: