I have a sequence of PNG-images with transparency which I want to convert to an FLV video with transparency.
So far I have been using ffmpeg to create FLVs (
vp6a), but it doesn't seem to support alpha channels.
The only software I found so far is Adobe After Effects, but it is too pricey. And then there is Adobe Flash Media Encoder, but it can only encode live from devices and not from file.
So is there an open source alternative that can create FLVs with alpha channels?