Splitting webm video to png with transparency
问题 I need to split a webm encoded video into png frames, without losing transparency. I use the following ffmpeg command: ffmpeg -i dancer1.webm -pix_fmt rgba frames/%04d.png This produces a directory of pngs, but why is each output frame is missing transparency? I have used this example video, which contains an alpha channel. See it playing over a background here. Here's an example output frame from ffmpeg: ffmpeg produces the following output when it runs: ffmpeg version N-60294-g549f052