ffmpeg package in Ubuntu

ffmpeg: Tools for transcoding, streaming and playing of multimedia files
ffmpeg-dbgsym: Debug symbols for ffmpeg
ffmpeg-doc: Documentation of the FFmpeg multimedia framework
libav-tools: Compatibility links for libav-tools (transitional package)
libavcodec-dev: FFmpeg library with de/encoders for audio/video codecs - development files
libavcodec-extra: FFmpeg library with extra codecs (metapackage)
libavcodec-extra57: FFmpeg library with additional de/encoders for audio/video codecs
libavcodec-extra57-dbgsym: debug symbols for libavcodec-extra57
libavcodec57: FFmpeg library with de/encoders for audio/video codecs - runtime files
libavcodec57-dbgsym: debug symbols for libavcodec57
libavdevice-dev: FFmpeg library for handling input and output devices - development files
libavdevice57: FFmpeg library for handling input and output devices - runtime files
libavdevice57-dbgsym: Debug symbols for libavdevice57
libavfilter-dev: FFmpeg library containing media filters - development files
libavfilter-extra: FFmpeg library with extra filters (metapackage)
libavfilter-extra6: FFmpeg library with extra media filters - runtime files
libavfilter-extra6-dbgsym: Debug symbols for libavfilter-extra6
libavfilter6: FFmpeg library containing media filters - runtime files
libavfilter6-dbgsym: debug symbols for libavfilter6
libavformat-dev: FFmpeg library with (de)muxers for multimedia containers - development files
libavformat57: FFmpeg library with (de)muxers for multimedia containers - runtime files
libavformat57-dbgsym: Debug symbols for libavformat57
libavresample-dev: FFmpeg compatibility library for resampling - development files
libavresample3: FFmpeg compatibility library for resampling - runtime files
libavresample3-dbgsym: debug symbols for libavresample3
libavutil-dev: FFmpeg library with functions for simplifying programming - development files
libavutil55: FFmpeg library with functions for simplifying programming - runtime files
libavutil55-dbgsym: Debug symbols for libavutil55
libpostproc-dev: FFmpeg library for post processing - development files
libpostproc54: FFmpeg library for post processing - runtime files
libpostproc54-dbgsym: debug symbols for libpostproc54
libswresample-dev: FFmpeg library for audio resampling, rematrixing etc. - development files
libswresample2: FFmpeg library for audio resampling, rematrixing etc. - runtime files
libswresample2-dbgsym: Debug symbols for libswresample2
libswscale-dev: FFmpeg library for image scaling and various conversions - development files
libswscale4: FFmpeg library for image scaling and various conversions - runtime files
libswscale4-dbgsym: Debug symbols for libswscale4