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libavcodec is a free and open-source [4] library of codecs for encoding and decoding video and audio data. [ 5 ] libavcodec is an integral part of many open-source multimedia applications and frameworks.
Libav primarily consists of libavcodec, which is an audio/video codec library used by several other projects, libavformat, which is an audio/video container muxing and demuxing library, and avconv, which is a multimedia manipulation tool similar to FFmpeg's ffmpeg or Gstreamer gst-launch-1.0 command. The command line-programs: avconv
The encoder and decoder have been part of the free, open-source library libavcodec in the project FFmpeg since June 2003. [5] FFV1 is also included in ffdshow and LAV Filters , [ 6 ] which makes the video codec available to Microsoft Windows applications that support system-wide codecs over Video for Windows (VfW) or DirectShow .
Linear pulse-code modulation (LPCM, generally only described as PCM) is the format for uncompressed audio in media files and it is also the standard for CD-DA; note that in computers, LPCM is usually stored in container formats such as WAV, AIFF, or AU, or as raw audio format, although not technically necessary.
FFmpeg includes an AVCHD decoder in its libavcodec library that is used for example by ffdshow, a free, Open Source collection of codecs for Microsoft Windows. CoreAVC is an H.264 decoder for Windows, which can decode AVCHD as well as a variety of other H.264 formats. Gstreamer uses libavcodec to decode AVCHD on Linux, BSD, OS/X, Windows, and ...
FFmpeg codecs in the libavcodec library, e.g. AC-3, AAC, ADPCM, PCM, Apple Lossless, FLAC, WMA, Vorbis, MP2, etc. FAAD2 – open-source decoder for Advanced Audio Coding. There is also FAAC, the same project's encoder, but it is proprietary (but still free of charge). libgsm – Lossy compression
Avidemux is a free and open-source software application for non-linear video editing and transcoding multimedia files. The developers intend it as "a simple tool for simple video processing tasks" and to allow users "to do elementary things in a very straightforward way". [3]
The libavcodec article only states obvious facts like "libavcodec is a part of FFmpeg", "it is an open-source project" and "multimedia players and editors use it for decoding and encoding", which are just trivial, non-controversial facts that are unlikely to be challenged.