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Libav provides cross-platform tools and libraries to convert, manipulate and stream a wide range of multimedia formats and protocols. avconv is a very fast video and audio converter that can also grab from a live audio/video source. It can also convert between arbitrary sample rates and resize video on the fly with a high quality polyphase filter. AVplay is a very simple and portable media player using the Libav libraries and the SDL library. avprobe gathers information from multimedia streams and prints it in human- and machine-readable fashion. avserver is a streaming server for both audio and video. Command line tools.

Free software
OS:Windows Linux
File size:20MB
Portable version
Version history available

6 votes

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  Latest version

12 (October 03, 2016)

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Download Libav 12 (portable)

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Download Libav Linux version

Supported operating systems

WinWindows LinuxLinux

Libav screenshot
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Version history / Release notes / Changelog

version 12:

- aliases and defaults for Ogg subtypes (opus, spx)
- HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
- avplay now exits by default at the end of playback
- XCB-based screen-grabber
- creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
- H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
- RTP/mpegts muxer
- VP8 in Ogg demuxing
- OpenH264 encoder wrapper
- Support DNx100 (960x720@8)
- Direct3D11-accelerated decoding
- DXVA2-accelerated HEVC decoding
- AAC ELD 480 decoding
- Intel QSV-accelerated H.264 decoding
- DSS SP decoder and DSS demuxer
- RTP depacketizer for AC3 payload format (RFC 4184)
- RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
- RTP depacketizer for DV (RFC 6469)
- Canopus HQX decoder
- RTP depacketization of T.140 text (RFC 4103)
- VP9 RTP payload format (draft 0) experimental depacketizer
- TDSC decoder
- DTS lossless extension (XLL) decoding (not lossless, disabled by default)
- Intel QSV-accelerated H.264 encoding
- MMAL-accelerated H.264 decoding
- DTS decoding through libdcadec
- Canopus HQ/HQA decoder
- Automatically rotate videos based on metadata in avconv
- improved Quickdraw compatibility
- NVIDIA NVENC-accelerated H.264 and HEVC encoding support
- Multipart JPEG demuxer
- Support the extended vp9 profiles in the libvpx wrapper
- Hap decoder and encoder
- DirectDraw Surface image/texture decoder
- rewritten ASF demuxer
- Go2Meeting decoding support
- Intel QSV-accelerated MPEG-2 video and HEVC encoding
- bitstream filter for converting HEVC from MP4 to Annex B
- Intel QSV-accelerated MPEG-2 video and HEVC decoding
- Support DNx100 (1440x1080@8)
- DXV decoding
- Screenpresso SPV1 decoding
- zero-copy Intel QSV transcoding in avconv
- libkvazaar HEVC encoder
- innoHeim/Rsupport Screen Capture Codec decoder
- support encoding 16-bit RLE SGI images
- support Apple AVFoundation video capture
- G.723.1 muxer and encoder
- compressed SWF
- VAAPI-accelerated format conversion and scaling
- libnpp/CUDA-accelerated format conversion and scaling
- VAAPI-accelerate H.264/HEVC/MJPEG encoding
- Generic OpenMAX IL encoder with support for Raspberry Pi
- MMAL-accelerated MPEG-2 and VC-1 decoding
- G.729 raw demuxer
- MagicYUV decoder
- Duck TrueMotion 2.0 Real Time decoder
- Intel QSV video scaling and deinterlacing filter
- Support MOV with multiple sample description tables
- OpenH264 decoder wrapper
- Removed the legacy X11 screen grabber, use XCB instead
- HDCD decoding filter through libhdcd
View full changelog

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Acronyms / Also Known As

Libav, avconv, avplayer, avprobe, avserver

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6 comments, Showing 1 to 5 comments

It seems that branch 12 will bot released before I am 6 feet under!
That sucks! LIBAV is not a good choice for developers who wants to be up-to-date!
Your overall better choice is FFMPEG!

Posted August 04, 2016 by Jim_pansen. Tool version 11,7 using OS Windows 7 64-bit
Ease of use 3 of 10 Functionality 10 of 10 Value for money 10 of 10 Overall score 5 of 10

Still no branch 12 to see on the horizon!
That makes me tired...

Posted March 01, 2016 by Jim_pansen. Tool version 12 using OS Windows 7 64-bit
Ease of use 1 of 10 Functionality 10 of 10 Value for money 10 of 10 Overall score 10 of 10

It still does not have proper support for Avisynth 2.6, is a shame.

Posted February 29, 2016 by remanyao. Tool version Libav using OS Windows 7
Ease of use 5 of 10 Functionality 5 of 10 Value for money 5 of 10 Overall score 5 of 10

Simply annoying is the long time between major release versions. Version 12 is under development since more than a half year, but we still see no release version announced. I just complain about it because most open source software developer do not use nightly builds so new features not come to life in proper libav based softwsae tools while ffmpeg based tools have it included due to their faster integration to release versions & the shorter release cycles.
I do not say that ffmpeg is more better than libav or the other way around. I just say that great developments does not cone to life without a force to release it soon. Development in libav is great, but please let it out all the good work you did to can use all the good work in great tools such as VLC Player or Handbrake. If these tools would use ffmpeg libraries the missing features & format support would be already a part of it...

My hope for the future is to see libav & ffmpeg teams joined.

Posted November 01, 2015 by Jim_pansen. Tool version 12 using OS Windows 7 64-bit
Ease of use 5 of 10 Functionality 10 of 10 Value for money 10 of 10 Overall score 5 of 10

Twelve years ago that Avisynth use, in ffmpeg I have no problems, in mencoder I have no problems, in libav:

"avconv version v12_dev0-1322-g4e17946, Copyright (c) 2000-2015 the Libav developers
built on May 24 2015 18:24:04 with gcc 4.8.3 (Gentoo 4.8.3 p1.1, pie-0.5.9)
C:\Program Files (x86)\LIBAV\usr\bin\LIBRA.avs: Invalid data found when processing input"

Please fix it.
Thank you.

Posted June 02, 2015 by remanyao. Tool version Libav 11.4 using OS Windows 7 64-bit
Ease of use 10 of 10 Functionality 5 of 10 Value for money 10 of 10 Overall score 5 of 10

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