Yes, I know I don't *need* an alpha channel. But without one, you have to
apply the same transparency to the whole frame, or use a green screen of
some sort, both of which have negative affects...
Josh
I have another different, but related question. What format would you
suggest for storing my screencast in? The resulting video is going to be
1080p30 and it needs to have an alpha channel (the input png's will use the
alpha channel). The screencast is going to be overlaid at a later time
(with ffmpeg) onto another 1080p30 avchd video from my canon camera.
In order to overlay one video on top of another you don't need anything
related to an alpha channel.
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