Interesting Patches

This page tries to collect some useful patches for FFmpeg that didn't make into SVN for some reason or another.

native Zlib decoder by Mans Rullgard

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-July/032807.html

In the same thread, there are patches to use the native decoder in several FFmpeg decoders.

WMV3 encoder by Denis Fortin

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-June/031689.html

H.263 rtp patch

http://www.voxgratia.org/bin/ffmpeg-0.4.7.patch.zip, originally at http://www.salyens.com/downloads/index.html#ffmpeg-0.4.7, now removed.

Apple RPZA encoder by Todd Kirby

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2005-June/001673.html

Jai Menon is currently working on this task as a qualification for Google SoC 2009 --Ce 04:04, 24 March 2009 (EDT)

Test Pattern Generator Demuxer by Nicholas George

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-October/036819.html

Test Pattern Generator Demuxer by Ramiro Ribeiro Polla

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-April/028226.html Or http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/49447

PES packetizer by Xiaohui Sun

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-September/034834.html

Part of the work of Summer Of Code TS Muxer

vf_imlib2: a libavfilter filter by Víctor Paesa

http://lists.mplayerhq.hu/pipermail/ffmpeg-soc/2007-December/002161.html

File concatenation by Wolfram Gloger

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-July/032121.html

"mem" file protocol by Lagrange Multiplier

The "mem" protocol simply uses RAM as a source for input multimedia data, akin to how the "file" and "pipe" protocols use filesystem files and pipes as sources.

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-May/028489.html

Presets/profiles for usual targets by Panagiotis Issaris

Allow to keep in a text file groups of command options, and apply them at once by specifying the target name.

Handy for iPod, PSP, or any other picky multimedia player that otherwise requires lengthy command lines.

http://article.gmane.org/gmane.comp.video.ffmpeg.devel/37244

AMV encoder

http://code.google.com/p/amv-codec-tools/

See this post [1] to see what is missing to get it into SVN.

Electronic Arts Formats demuxer/decoder by Peter Ross

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-October/036919.html The format demuxer modifications and the EA video codecs have not yet been applied to FFmpeg.

Experimental MSVC port by Ole André Vadla Ravnås

Code in the bazaar branch at http://people.collabora.co.uk/~oleavr/OABuild/bzr/ffmpeg/

Patch at http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2008-March/044418.html

H264 encoder by Jori Liesenborgs & Panagiotis Issaris

http://research.edm.uhasselt.be/~h264/

DTS/AC3 in wav autodetection

http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/49812/focus=49909 Clean up this patch and also add detection of AC3 in wav, it is similar. Samples for both can be found here: http://www.sr.se/cgi-bin/mall/artikel.asp?ProgramID=2445&Artikel=739973

Bink Audio decoder by Peter Ross

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2008-April/045326.html

Note: An updated patch is under development by User:DrV based on an updated patch by the original author.

G722 decoder by Chas Williams

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2009-April/067552.html

This patch has no licensing issues, but also contains an encoder which was basically rejected by the project maintainer.

It might be enough to resend the decoder alone to get it into svn.

Chinese AVS video encoder by Stefan Gehrer

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-July/033273.html

Lossless msmpeg4v3 to mpeg4 transcoder

http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/17074

Fixed point cook decoder

http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/46024 http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/54008 http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/54553

GDI screen grabbing for Win32

http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/43589

There are two implementations in the thread above.

RealAudio SIPR @16k decoder and demuxer by Vladimir Voroshilov

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2008-September/052902.html

Expected to work with FFmpeg r15192. Ask Vitor if you want an WIP improved version of this patch.

Proper parsing of DTS-HD MA streams

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2008-November/056484.html

ACELP.net and G.729 decoder by Vladimir Voroshilov

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2009-June/072046.html

MS Video 1 encoder by Kostya Shishkov

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2009-January/060033.html

LucasArts SMUSH demuxer and decoder by Kostya Shishkov

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2009-January/060391.html

MPEG-4 ALS encoder by Justin Ruggles

http://gitorious.org/projects/ffmpeg/repos/alsenc

libaacplus and FFmpeg patch

http://tipok.org.ua/ru/node/17

CAFF demuxer by Justin Ruggles

This is 2 years old and not that great, but it could be a starting point at least. http://ffmpeg.pastebin.com/f21af2d03