Binary package “libavcodec55” in ubuntu-rtm 14.09
Libav codec library
Libav is a complete, cross-platform solution to decode, encode, record,
convert and stream audio and video.
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This is the codec library from Libav (both encoding and decoding).
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It supports most existing codecs (MPEG, MPEG2, MPEG4, AC3, DV...).