In the video codecs: VP9, VP8, theora (vp3) dirac. Fortunately the free world provides several formats as well as several free codecs: Indeed, each codec or format has its own standard with more or less restrictive licenses, all combinations are not possible. To summarize, FFmpeg / Libav can multiplex or de-multiplex in different formats:Īnd modify, using filters, the content of each stream independently.īut if FFmpeg / Libav can handle tons of formats and tons of different codecs, all combinations are not possible, as shown in this table. In the same way as for formats, FFmpeg / Libav lists the codecs that it can handle: avconv -codecsįFmpeg / Libav also has a significant base of filters that can modify the content of each stream, such as changing resolution, change the volume of a track, superimpose a logo etc. By using codecs, compression can result in the loss of perceivable quality in picture or sound. ) including reducing the flow rate (Kbits / s). The codec is an algorithm used to encode the video or sound to suit the transport protocol (IP, DVB, file. We talk about multiplexing different tracks or streams in a format.įFmpeg/Libav provide a list of supported format: avconv -formatsĭ mov,mp4,m4a,3gp,3g2,mj2 QuickTime / MOV one or more video streams (a movie or tv channels.). Inside a container can be inserted (mux) or extract (demux): The format is the container that allows the transport of video, audio and subtitles or as a file (mkv, mov. Or directly from the command line interface, as explained bellow.Īn introduction to the terminology of video is useful to understand the FFmpeg syntax. įFmpeg or Libav can be use from GUI like: 
It also possible to compile it by following the instructions available here. To find out which deposit the package is available, look here: debpkg:libav or here debpkg:ffmpeg. To install ffmpeg: apt-get install ffmpegīe careful, FFmpeg is not available on Debian 8 Jessie, but in Backports. To install libav: apt-get install libav-tools Transform a image sequence into a video.Organize the order of the streams (mapping).
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