In March 2011 some of the FFmpeg developers forked the project under the name “Libav”.
Libav is a complete, cross-platform solution to record, convert and stream audio and video. It includes libavcodec – the leading audio/video codec library. One of the components of libav is avconv, a fast open source video and audio converter that can also grab from a live audio/video source. The command-line tool can also convert between arbitrary sample rates and resize video on the fly with a high quality polyphase filter.
Besides avconv, the libav-tools package offers the avplay multimedia player, the avserver streaming server, and the avprobe stream analyzer. The tooks support most existing file formats (AVI, MPEG, OGG, Matroska, ASF…) and encoding formats (MPEG, DivX, MPEG4, AC3, DV…).
- Grabs video and audio.
- Can also grab the X11 display.
- Convert from one audio and video format to another format in real time.
- Streams several formats at several bit rates and resolutions simultaneously.
- Handles thousands of concurrent users.
- Uses the HTTP protocol to be compatible with all major players including Icecast (aka mpg123, xmms, winamp), MTV (to play streaming MPEG video and audio), “Real” compatible players and Windows Media Player.
- Allows time shifting of live streams.
- One instance can stream from multiple live encoding sources and/or multiple static files.
- avprobe tool.
- VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files.
- Video filters: blackframe, bloxblur, copy, crop, cropdetect, delogo, drawbox, drawtext, fade, fieldorder, fifo, format, frei0r, gradfun, hflip, hqdn3d, lut, lutrgb, lutyuv, negate, null, ocv, overlay, pad, pixdesctest, scale, select, setdar, setpts, setsar, settb, showinfo, slicify, transpose, unsharp, vflip, and yadif.
- Picks the “best” stream of each type present in input files and add them to each output file.
|New to Linux? Read our Linux for Starters series.|
|The largest compilation of the best free and open source software in the universe. Supplied with our legendary ratings charts.|
|Hundreds of in-depth reviews offering our unbiased and expert opinion on software.|
|Alternatives to Google's Products and Services examines your options to migrate from the Google ecosystem with open source Linux alternatives.|
|Essential Linux system tools looks at small, indispensable utilities, useful for system administrators as well as regular users.|
|Linux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine.|
|Home computers became commonplace in the 1980s. Emulate home computers such as the ZX81, Amstrad CPC, and ZX Spectrum.|
|Now and Then examines how promising open source software fared over the years.|
|Linux at Home looks at a range of home activities where Linux can play its part, making the most of our time at home, keeping active and engaged.|
|Linux Candy opens up to the lighter side of Linux. Have some fun!|
|Best Free Android Apps. There's a strict eligibility criteria for inclusion in this series|
|These best free books accelerate your learning of every programming language|
|These free tutorials offer the perfect tonic to the free programming books series|
|Stars and Stripes is an occasional series looking at the impact of Linux in the USA|