FFmpeg 1.0.10
Audio
abuffersink
Buffer audio frames, and make them available to the end of filter chain.
anullsink
Null audio sink, do absolutely nothing with the input audio.
abuffersink
This sink is intended for programmatic use.
Video
buffersink
Buffer video frames, and make them available to the end of the filter graph.
nullsink
Null video sink, do absolutely nothing with the input video.