Video and audio messaging is no longer possible in aMSN due to server side changes. Therefore some video dependencies were removed in the net-im/amsn-0.98.3 ebuild. v4l and ffmpeg[encode] are still dependencies for the ebuild but are only required for audio/video messaging. They should be removed.
Created attachment 256811 [details, diff] Patch for amsn/amsn-0.98.3.ebuild Patch that disables v4l and removes ffmpeg[encode] dependencies.
This isn't the same thing... There are multiple types of video/audio messaging in MSN. the v4l thing is used for msn webcam, which still works, and ffmpeg is used for something else, which also still works.