path: root/doc/general.texi

\input texinfo @c -*- texinfo -*-

@settitle General Documentation
@titlepage
@center @titlefont{General Documentation}
@end titlepage

@top

@contents

@chapter External libraries

Libav can be hooked up with a number of external libraries to add support
for more formats. None of them are used by default, their use has to be
explicitly requested by passing the appropriate flags to
@command{./configure}.

@section OpenCORE and VisualOn libraries

Spun off Google Android sources, OpenCore, VisualOn and Fraunhofer
libraries provide encoders for a number of audio codecs.

@float NOTE
OpenCORE and VisualOn libraries are under the Apache License 2.0
(see @url{http://www.apache.org/licenses/LICENSE-2.0} for details), which is
incompatible with the LGPL version 2.1 and GPL version 2. You have to
upgrade Libav's license to LGPL version 3 (or if you have enabled
GPL components, GPL version 3) to use it.
@end float

@subsection OpenCORE AMR

Libav can make use of the OpenCORE libraries for AMR-NB
decoding/encoding and AMR-WB decoding.

Go to @url{http://sourceforge.net/projects/opencore-amr/} and follow the
instructions for installing the libraries.
Then pass @code{--enable-libopencore-amrnb} and/or
@code{--enable-libopencore-amrwb} to configure to enable them.

@subsection VisualOn AAC encoder library

Libav can make use of the VisualOn AACenc library for AAC encoding.

Go to @url{http://sourceforge.net/projects/opencore-amr/} and follow the
instructions for installing the library.
Then pass @code{--enable-libvo-aacenc} to configure to enable it.

@subsection VisualOn AMR-WB encoder library

Libav can make use of the VisualOn AMR-WBenc library for AMR-WB encoding.

Go to @url{http://sourceforge.net/projects/opencore-amr/} and follow the
instructions for installing the library.
Then pass @code{--enable-libvo-amrwbenc} to configure to enable it.

@subsection Fraunhofer AAC library

Libav can make use of the Fraunhofer AAC library for AAC encoding.

Go to @url{http://sourceforge.net/projects/opencore-amr/} and follow the
instructions for installing the library.
Then pass @code{--enable-libfdk-aac} to configure to enable it.

@section LAME

Libav can make use of the LAME library for MP3 encoding.

Go to @url{http://lame.sourceforge.net/} and follow the
instructions for installing the library.
Then pass @code{--enable-libmp3lame} to configure to enable it.

@section TwoLAME

Libav can make use of the TwoLAME library for MP2 encoding.

Go to @url{http://www.twolame.org/} and follow the
instructions for installing the library.
Then pass @code{--enable-libtwolame} to configure to enable it.

@section libvpx

Libav can make use of the libvpx library for VP8 encoding.

Go to @url{http://www.webmproject.org/} and follow the instructions for
installing the library. Then pass @code{--enable-libvpx} to configure to
enable it.

@section libwavpack

Libav can make use of the libwavpack library for WavPack encoding.

Go to @url{http://www.wavpack.com/} and follow the instructions for
installing the library. Then pass @code{--enable-libwavpack} to configure to
enable it.

@section libxavs

Libav can make use of the libxavs library for Xavs encoding.

Go to @url{http://xavs.sf.net/} and follow the instructions for
installing the library. Then pass @code{--enable-libxavs} to configure to
enable it.

@section OpenH264

Libav can make use of the OpenH264 library for H.264 encoding and decoding.

Go to @url{http://www.openh264.org/} and follow the instructions for
installing the library. Then pass @code{--enable-libopenh264} to configure to
enable it.

For decoding, this library is much more limited than the built-in decoder
in libavcodec; currently, this library lacks support for decoding B-frames
and some other main/high profile features. (It currently only supports
constrained baseline profile and CABAC.) Using it is mostly useful for
testing and for taking advantage of Cisco's patent portfolio license
(@url{http://www.openh264.org/BINARY_LICENSE.txt}).

@section x264

Libav can make use of the x264 library for H.264 encoding.

Go to @url{http://www.videolan.org/developers/x264.html} and follow the
instructions for installing the library. Then pass @code{--enable-libx264} to
configure to enable it.

@float NOTE
x264 is under the GNU Public License Version 2 or later
(see @url{http://www.gnu.org/licenses/old-licenses/gpl-2.0.html} for
details), you must upgrade Libav's license to GPL in order to use it.
@end float

@section x265

Libav can make use of the x265 library for HEVC encoding.

Go to @url{http://x265.org/developers.html} and follow the instructions
for installing the library. Then pass @code{--enable-libx265} to configure
to enable it.

@float note
x265 is under the GNU Public License Version 2 or later
(see @url{http://www.gnu.org/licenses/old-licenses/gpl-2.0.html} for
details), you must upgrade Libav's license to GPL in order to use it.
@end float

@section kvazaar

Libav can make use of the kvazaar library for HEVC encoding.

Go to @url{https://github.com/ultravideo/kvazaar} and follow the
instructions for installing the library. Then pass
@code{--enable-libkvazaar} to configure to enable it.

@section libilbc

iLBC is a narrowband speech codec that has been made freely available
by Google as part of the WebRTC project. libilbc is a packaging friendly
copy of the iLBC codec. Libav can make use of the libilbc library for
iLBC encoding and decoding.

Go to @url{https://github.com/dekkers/libilbc} and follow the instructions for
installing the library. Then pass @code{--enable-libilbc} to configure to
enable it.

@section libhdcd

Libav can make use of the libhdcd library for High Definition Compatible
Digital (HDCD) decoding via the @code{hdcd} filter.

Go to @url{https://github.com/bp0/libhdcd} and follow the instructions for
installing the library. Then pass @code{--enable-libhdcd} to configure to
enable it.

@section AviSynth

Libav can read AviSynth scripts as input. To enable support you need a
suitable @file{avisynth_c.h} header to compile against. The header as
provided by AviSynth+ is fully compatible. AviSynth 2.5 is not supported
by Libav. Once you have the appropriate header, pass
@code{--enable-avisynth} to configure to enable AviSynth support.

For Windows, supported AviSynth variants are
@url{http://avisynth.nl, AviSynth 2.6 RC1 or higher} for 32-bit builds and
@url{http://avs-plus.net, AviSynth+ r1718 or higher} for 32-bit and 64-bit builds.
@url{https://github.com/AviSynth/AviSynthPlus, AviSynth+'s git repository}
provides a GNU-style Makefile which can install just the headers using
@code{make install PREFIX=/install/prefix}.

@float NOTE
There is currently a regression in AviSynth+'s @code{capi.h} header as of
October 2016, which interferes with the ability for builds of Libav to use
MSVC-built binaries of AviSynth. Until this is resolved, you can make sure
a known good version is installed by checking out a version from before
the regression occurred:

@code{git clone -b MT git://github.com/AviSynth/AviSynthPlus.git @*
cd AviSynthPlus @*
git checkout -b oldheader b4f292b4dbfad149697fb65c6a037bb3810813f9 @*
make install PREFIX=/install/prefix}
@end float

@float NOTE
When using AviSynth+'s installed headers, the user must also pass
the avisynth/ include directory to @code{--extra-cflags}. For example,
if the PREFIX given to AviSynth+'s Makefile was /usr/i686-w64-mingw32,
then the correct command would be
@code{--extra-cflags="-I/usr/i686-w64-mingw32/include/avisynth"}.
@end float

For Linux and OS X, the supported AviSynth variant is
@url{https://github.com/avxsynth/avxsynth, AvxSynth}.
@file{avxsynth_c.h} is installed as part of the normal
build routine, as illustrated on
@url{https://github.com/avxsynth/avxsynth/wiki/System-Setup, AvxSynth's wiki}.
(the instructions for compiling its prerequisites are outdated, as FFMS 2.18
or higher is now needed; the list of dependencies to be downloaded from the
repositories is still the same, though).

@float NOTE
AviSynth and AvxSynth are loaded dynamically.  Distributors can build Libav
with @code{--enable-avisynth}, and the binaries will work regardless of the
end user having AviSynth or AvxSynth installed - they'll only need to be
installed to use AviSynth scripts (obviously).
@end float

@section Intel QuickSync Video

Libav can use Intel QuickSync Video (QSV) for accelerated encoding and decoding
of multiple codecs. To use QSV, Libav must be linked against the @code{libmfx}
dispatcher, which loads the actual decoding libraries.

The dispatcher is open source and can be downloaded from
@url{https://github.com/lu-zero/mfx_dispatch.git}. Libav needs to be configured
with the @code{--enable-libmfx} option and @code{pkg-config} needs to be able to
locate the dispatcher's @code{.pc} files.

@section AMD VCE

Libav can use the AMD Advanced Media Framework library for accelerated H.264 and HEVC encoding on VCE enabled hardware under Windows.

To enable support you must obtain the AMF framework header files from @url{https://github.com/GPUOpen-LibrariesAndSDKs/AMF.git}.

Create an @code{AMF/} directory in the system include path.
Copy the contents of @code{AMF/amf/public/include/} into that directory.
Then Configure Libav with @code{--enable-amf}.

@chapter Supported File Formats and Codecs

You can use the @code{-formats} and @code{-codecs} options to have an exhaustive list.

@section File Formats

Libav supports the following file formats through the @code{libavformat}
library:

@multitable @columnfractions .4 .1 .1 .4
@item Name @tab Encoding @tab Decoding @tab Comments
@item 4xm                       @tab   @tab X
    @tab 4X Technologies format, used in some games.
@item 8088flex TMV              @tab   @tab X
@item Adobe Filmstrip           @tab X @tab X
@item Audio IFF (AIFF)          @tab X @tab X
@item American Laser Games MM   @tab   @tab X
    @tab Multimedia format used in games like Mad Dog McCree.
@item 3GPP AMR                  @tab X @tab X
@item Amazing Studio Packed Animation File  @tab   @tab X
    @tab Multimedia format used in game Heart Of Darkness.
@item Apple HTTP Live Streaming @tab   @tab X
@item ASF                       @tab X @tab X
@item AVI                       @tab X @tab X
@item AviSynth                  @tab   @tab X
@item AVS                       @tab   @tab X
    @tab Multimedia format used by the Creature Shock game.
@item Beam Software SIFF        @tab   @tab X
    @tab Audio and video format used in some games by Beam Software.
@item Bethesda Softworks VID    @tab   @tab X
    @tab Used in some games from Bethesda Softworks.
@item Bink                      @tab   @tab X
    @tab Multimedia format used by many games.
@item Bitmap Brothers JV        @tab   @tab X
    @tab Used in Z and Z95 games.
@item Brute Force & Ignorance   @tab   @tab X
    @tab Used in the game Flash Traffic: City of Angels.
@item BWF                       @tab X @tab X
@item CRI ADX                   @tab X @tab X
    @tab Audio-only format used in console video games.
@item Discworld II BMV          @tab   @tab X
@item Interplay C93             @tab   @tab X
    @tab Used in the game Cyberia from Interplay.
@item Delphine Software International CIN @tab   @tab X
    @tab Multimedia format used by Delphine Software games.
@item Digital Speech Standard (DSS) @tab   @tab X
@item Canopus HQ                @tab   @tab X
@item Canopus HQA               @tab   @tab X
@item Canopus HQX               @tab   @tab X
@item CD+G                      @tab   @tab X
    @tab Video format used by CD+G karaoke disks
@item Commodore CDXL            @tab   @tab X
    @tab Amiga CD video format
@item Core Audio Format         @tab   @tab X
    @tab Apple Core Audio Format
@item CRC testing format        @tab X @tab
@item Creative Voice            @tab X @tab X
    @tab Created for the Sound Blaster Pro.
@item CRYO APC                  @tab   @tab X
    @tab Audio format used in some games by CRYO Interactive Entertainment.
@item D-Cinema audio            @tab X @tab X
@item Deluxe Paint Animation    @tab   @tab X
@item DFA                       @tab   @tab X
    @tab This format is used in Chronomaster game
@item DirectDraw Surface        @tab   @tab X
@item DV video                  @tab X @tab X
@item DXA                       @tab   @tab X
    @tab This format is used in the non-Windows version of the Feeble Files
         game and different game cutscenes repacked for use with ScummVM.
@item Electronic Arts cdata  @tab    @tab X
@item Electronic Arts Multimedia  @tab    @tab X
    @tab Used in various EA games; files have extensions like WVE and UV2.
@item Flash (SWF)               @tab X @tab X
@item Flash 9 (AVM2)            @tab X @tab X
    @tab Only embedded audio is decoded.
@item FLI/FLC/FLX animation     @tab   @tab X
    @tab .fli/.flc files
@item Flash Video (FLV)         @tab X @tab X
    @tab Macromedia Flash video files
@item framecrc testing format   @tab X @tab
@item FunCom ISS                @tab   @tab X
    @tab Audio format used in various games from FunCom like The Longest Journey.
@item GIF Animation             @tab X @tab
@item GXF                       @tab X @tab X
    @tab General eXchange Format SMPTE 360M, used by Thomson Grass Valley
         playout servers.
@item HNM @tab   @tab X
    @tab Only version 4 supported, used in some games from Cryo Interactive
@item id Quake II CIN video     @tab   @tab X
@item id RoQ                    @tab X @tab X
    @tab Used in Quake III, Jedi Knight 2, other computer games.
@item IEC61937 encapsulation @tab X @tab X
@item IFF                       @tab   @tab X
    @tab Interchange File Format
@item iLBC                      @tab X @tab X
@item Interplay MVE             @tab   @tab X
    @tab Format used in various Interplay computer games.
@item IV8                       @tab   @tab X
    @tab A format generated by IndigoVision 8000 video server.
@item IVF (On2)                 @tab X @tab X
    @tab A format used by libvpx
@item LATM                      @tab X @tab X
@item LMLM4                     @tab   @tab X
    @tab Used by Linux Media Labs MPEG-4 PCI boards
@item LXF                       @tab   @tab X
    @tab VR native stream format, used by Leitch/Harris' video servers.
@item Matroska                  @tab X @tab X
@item Matroska audio            @tab X @tab
@item FFmpeg metadata           @tab X @tab X
    @tab Metadata in text format.
@item MAXIS XA                  @tab   @tab X
    @tab Used in Sim City 3000; file extension .xa.
@item MD Studio                 @tab   @tab X
@item Mobotix .mxg              @tab   @tab X
@item Monkey's Audio            @tab   @tab X
@item Motion Pixels MVI         @tab   @tab X
@item MOV/QuickTime/MP4         @tab X @tab X
    @tab 3GP, 3GP2, PSP, iPod variants supported
@item MP2                       @tab X @tab X
@item MP3                       @tab X @tab X
@item MPEG-1 System             @tab X @tab X
    @tab muxed audio and video, VCD format supported
@item MPEG-PS (program stream)  @tab X @tab X
    @tab also known as @code{VOB} file, SVCD and DVD format supported
@item MPEG-TS (transport stream) @tab X @tab X
    @tab also known as DVB Transport Stream
@item MPEG-4                    @tab X @tab X
    @tab MPEG-4 is a variant of QuickTime.
@item Mirillis FIC video        @tab   @tab X
    @tab No cursor rendering.
@item MIME multipart JPEG       @tab X @tab
@item MSN TCP webcam            @tab   @tab X
    @tab Used by MSN Messenger webcam streams.
@item MTV                       @tab   @tab X
@item Musepack                  @tab   @tab X
@item Musepack SV8              @tab   @tab X
@item Material eXchange Format (MXF) @tab X @tab X
    @tab SMPTE 377M, used by D-Cinema, broadcast industry.
@item Material eXchange Format (MXF), D-10 Mapping @tab X @tab X
    @tab SMPTE 386M, D-10/IMX Mapping.
@item NC camera feed            @tab   @tab X
    @tab NC (AVIP NC4600) camera streams
@item NTT TwinVQ (VQF)          @tab   @tab X
    @tab Nippon Telegraph and Telephone Corporation TwinVQ.
@item Nullsoft Streaming Video  @tab   @tab X
@item NuppelVideo               @tab   @tab X
@item NUT                       @tab X @tab X
    @tab NUT Open Container Format
@item Ogg                       @tab X @tab X
@item Playstation Portable PMP  @tab   @tab X
@item TechnoTrend PVA           @tab   @tab X
    @tab Used by TechnoTrend DVB PCI boards.
@item QCP                       @tab   @tab X
@item raw ADTS (AAC)            @tab X @tab X
@item raw AC-3                  @tab X @tab X
@item raw Chinese AVS video     @tab X @tab X
@item raw CRI ADX               @tab X @tab X
@item raw Dirac                 @tab X @tab X
@item raw DNxHD                 @tab X @tab X
@item raw DTS                   @tab X @tab X
@item raw E-AC-3                @tab X @tab X
@item raw FLAC                  @tab X @tab X
@item raw GSM                   @tab   @tab X
@item raw H.261                 @tab X @tab X
@item raw H.263                 @tab X @tab X
@item raw H.264                 @tab X @tab X
@item raw HEVC                  @tab X @tab X
@item raw Ingenient MJPEG       @tab   @tab X
@item raw MJPEG                 @tab X @tab X
@item raw MLP                   @tab   @tab X
@item raw MPEG                  @tab   @tab X
@item raw MPEG-1                @tab   @tab X
@item raw MPEG-2                @tab   @tab X
@item raw MPEG-4                @tab X @tab X
@item raw NULL                  @tab X @tab
@item raw video                 @tab X @tab X
@item raw id RoQ                @tab X @tab
@item raw Shorten               @tab   @tab X
@item raw TAK                   @tab   @tab X
@item raw TrueHD                @tab X @tab X
@item raw VC-1                  @tab   @tab X
@item raw PCM A-law             @tab X @tab X
@item raw PCM mu-law            @tab X @tab X
@item raw PCM signed 8 bit      @tab X @tab X
@item raw PCM signed 16 bit big-endian  @tab X @tab X
@item raw PCM signed 16 bit little-endian  @tab X @tab X
@item raw PCM signed 24 bit big-endian  @tab X @tab X
@item raw PCM signed 24 bit little-endian  @tab X @tab X
@item raw PCM signed 32 bit big-endian  @tab X @tab X
@item raw PCM signed 32 bit little-endian  @tab X @tab X
@item raw PCM unsigned 8 bit    @tab X @tab X
@item raw PCM unsigned 16 bit big-endian  @tab X @tab X
@item raw PCM unsigned 16 bit little-endian  @tab X @tab X
@item raw PCM unsigned 24 bit big-endian  @tab X @tab X
@item raw PCM unsigned 24 bit little-endian  @tab X @tab X
@item raw PCM unsigned 32 bit big-endian  @tab X @tab X
@item raw PCM unsigned 32 bit little-endian  @tab X @tab X
@item raw PCM floating-point 32 bit big-endian  @tab X @tab X
@item raw PCM floating-point 32 bit little-endian  @tab X @tab X
@item raw PCM floating-point 64 bit big-endian  @tab X @tab X
@item raw PCM floating-point 64 bit little-endian  @tab X @tab X
@item RDT                       @tab   @tab X
@item REDCODE R3D               @tab   @tab X
    @tab File format used by RED Digital cameras, contains JPEG 2000 frames and PCM audio.
@item RealMedia                 @tab X @tab X
@item Redirector                @tab   @tab X
@item Renderware TeXture Dictionary @tab   @tab X
@item Resolume DXV              @tab   @tab X
@item RL2                       @tab   @tab X
    @tab Audio and video format used in some games by Entertainment Software Partners.
@item RPL/ARMovie               @tab   @tab X
@item Lego Mindstorms RSO       @tab X @tab X
@item RTMP                      @tab X @tab X
    @tab Output is performed by publishing stream to RTMP server
@item RTP                       @tab X @tab X
@item RTSP                      @tab X @tab X
@item SAP                       @tab X @tab X
@item Screenpresso              @tab   @tab X
@item SDP                       @tab   @tab X
@item Sega FILM/CPK             @tab   @tab X
    @tab Used in many Sega Saturn console games.
@item Silicon Graphics Movie    @tab   @tab X
@item Sierra SOL                @tab   @tab X
    @tab .sol files used in Sierra Online games.
@item Sierra VMD                @tab   @tab X
    @tab Used in Sierra CD-ROM games.
@item Smacker                   @tab   @tab X
    @tab Multimedia format used by many games.
@item SMJPEG                    @tab X @tab X
    @tab Used in certain Loki game ports.
@item Smush
    @tab Multimedia format used in some LucasArts games.
@item Sony OpenMG (OMA)         @tab X @tab X
    @tab Audio format used in Sony Sonic Stage and Sony Vegas.
@item Sony PlayStation STR      @tab   @tab X
@item Sony Wave64 (W64)         @tab   @tab X
@item SoX native format         @tab X @tab X
@item SUN AU format             @tab X @tab X
@item TDSC                      @tab   @tab X
@item Text files                @tab   @tab X
@item THP                       @tab   @tab X
    @tab Used on the Nintendo GameCube.
@item Tiertex Limited SEQ       @tab   @tab X
    @tab Tiertex .seq files used in the DOS CD-ROM version of the game Flashback.
@item True Audio                @tab   @tab X
@item VC-1 test bitstream       @tab X @tab X
@item Vidvox Hap                @tab X @tab X
@item WAV                       @tab X @tab X
@item WavPack                   @tab   @tab X
@item WebM                      @tab X @tab X
@item Windows Televison (WTV)   @tab   @tab X
@item Wing Commander III movie  @tab   @tab X
    @tab Multimedia format used in Origin's Wing Commander III computer game.
@item Westwood Studios audio    @tab   @tab X
    @tab Multimedia format used in Westwood Studios games.
@item Westwood Studios VQA      @tab   @tab X
    @tab Multimedia format used in Westwood Studios games.
@item XMV                       @tab   @tab X
    @tab Microsoft video container used in Xbox games.
@item xWMA                      @tab   @tab X
    @tab Microsoft audio container used by XAudio 2.
@item YUV4MPEG pipe             @tab X @tab X
@item Psygnosis YOP             @tab   @tab X
@item ZeroCodec Lossless Video  @tab   @tab X
@end multitable

@code{X} means that encoding (resp. decoding) is supported.

@section Image Formats

Libav can read and write images for each frame of a video sequence. The
following image formats are supported:

@multitable @columnfractions .4 .1 .1 .4
@item Name @tab Encoding @tab Decoding @tab Comments
@item .Y.U.V       @tab X @tab X
    @tab one raw file per component
@item Alias PIX    @tab X @tab X
    @tab Alias/Wavefront PIX image format
@item animated GIF @tab X @tab X
    @tab Only uncompressed GIFs are generated.
@item BMP          @tab X @tab X
    @tab Microsoft BMP image
@item BRender PIX  @tab   @tab X
    @tab Argonaut BRender 3D engine image format.
@item DPX          @tab X @tab X
    @tab Digital Picture Exchange
@item EXR          @tab   @tab X
    @tab OpenEXR
@item JPEG         @tab X @tab X
    @tab Progressive JPEG is not supported.
@item JPEG 2000    @tab E @tab X
    @tab encoding supported through external library libopenjpeg
@item JPEG-LS      @tab X @tab X
@item LJPEG        @tab X @tab
    @tab Lossless JPEG
@item PAM          @tab X @tab X
    @tab PAM is a PNM extension with alpha support.
@item PBM          @tab X @tab X
    @tab Portable BitMap image
@item PCX          @tab X @tab X
    @tab PC Paintbrush
@item PGM          @tab X @tab X
    @tab Portable GrayMap image
@item PGMYUV       @tab X @tab X
    @tab PGM with U and V components in YUV 4:2:0
@item PIC          @tab @tab X
    @tab Pictor/PC Paint
@item PNG          @tab X @tab X
    @tab 2/4 bpp not supported yet
@item PPM          @tab X @tab X
    @tab Portable PixelMap image
@item PTX          @tab   @tab X
    @tab V.Flash PTX format
@item SGI          @tab X @tab X
    @tab SGI RGB image format
@item Sun Rasterfile  @tab X @tab X
    @tab Sun RAS image format
@item TIFF         @tab X @tab X
    @tab YUV, JPEG and some extension is not supported yet.
@item Truevision Targa  @tab X @tab X
    @tab Targa (.TGA) image format
@item WebP         @tab E @tab X
    @tab WebP image format, encoding supported through external library libwebp
@item XBM  @tab X @tab X
    @tab X BitMap image format
@item XWD  @tab X @tab X
    @tab X Window Dump image format
@end multitable

@code{X} means that encoding (resp. decoding) is supported.

@code{E} means that support is provided through an external library.

@section Video Codecs

@multitable @columnfractions .4 .1 .1 .4
@item Name @tab Encoding @tab Decoding @tab Comments
@item 4X Movie               @tab     @tab  X
    @tab Used in certain computer games.
@item 8088flex TMV           @tab     @tab  X
@item 8SVX exponential       @tab     @tab  X
@item 8SVX fibonacci         @tab     @tab  X
@item A64 multicolor         @tab  X  @tab
    @tab Creates video suitable to be played on a commodore 64 (multicolor mode).
@item Amazing Studio PAF Video @tab     @tab  X
@item American Laser Games MM  @tab    @tab X
    @tab Used in games like Mad Dog McCree.
@item AMV Video              @tab     @tab  X
    @tab Used in Chinese MP3 players.
@item ANSI/ASCII art         @tab     @tab  X
@item Apple Intermediate Codec @tab     @tab  X
@item Apple MJPEG-B          @tab     @tab  X
@item Apple Pixlet           @tab     @tab  X
@item Apple ProRes           @tab  X  @tab  X
@item Apple QuickDraw        @tab     @tab  X
    @tab fourcc: qdrw
@item Asus v1                @tab  X  @tab  X
    @tab fourcc: ASV1
@item Asus v2                @tab  X  @tab  X
    @tab fourcc: ASV2
@item ATI VCR1               @tab     @tab  X
    @tab fourcc: VCR1
@item ATI VCR2               @tab     @tab  X
    @tab fourcc: VCR2
@item Auravision Aura        @tab     @tab  X
@item Auravision Aura 2      @tab     @tab  X
@item Autodesk Animator Flic video  @tab     @tab  X
@item Autodesk RLE           @tab     @tab  X
    @tab fourcc: AASC
@item AVS (Audio Video Standard) video  @tab     @tab  X
    @tab Video encoding used by the Creature Shock game.
@item Beam Software VB       @tab     @tab  X
@item Bethesda VID video     @tab     @tab  X
    @tab Used in some games from Bethesda Softworks.
@item Bink Video             @tab     @tab  X
@item Bitmap Brothers JV video  @tab   @tab X
@item Brute Force & Ignorance   @tab   @tab X
    @tab Used in the game Flash Traffic: City of Angels.
@item C93 video              @tab     @tab  X
    @tab Codec used in Cyberia game.
@item CamStudio              @tab     @tab  X
    @tab fourcc: CSCD
@item CD+G                   @tab     @tab  X
    @tab Video codec for CD+G karaoke disks
@item CDXL                   @tab     @tab  X
    @tab Amiga CD video codec
@item Chinese AVS video      @tab  E  @tab  X
    @tab AVS1-P2, JiZhun profile, encoding through external library libxavs
@item Cineform HD            @tab     @tab  X
@item Delphine Software International CIN video  @tab     @tab  X
    @tab Codec used in Delphine Software International games.
@item Discworld II BMV Video @tab     @tab  X
@item Canopus Lossless Codec @tab     @tab  X
@item Cinepak                @tab  X  @tab  X
@item Cirrus Logic AccuPak   @tab  X  @tab  X
    @tab fourcc: CLJR
@item Creative YUV (CYUV)    @tab     @tab  X
@item DFA                    @tab     @tab  X
    @tab Codec used in Chronomaster game.
@item Dirac                  @tab  E  @tab  E
    @tab supported through external library libschroedinger
@item Deluxe Paint Animation @tab     @tab  X
@item DNxHD                  @tab   X @tab  X
    @tab aka SMPTE VC3
@item Duck TrueMotion 1.0   @tab     @tab  X
    @tab fourcc: DUCK
@item Duck TrueMotion 2.0    @tab     @tab  X
    @tab fourcc: TM20
@item Duck TrueMotion 2.0 RT @tab     @tab  X
    @tab fourcc: TR20
@item DV (Digital Video)     @tab  X  @tab  X
@item Dxtory capture format  @tab     @tab  X
@item Feeble Files/ScummVM DXA  @tab     @tab  X
    @tab Codec originally used in Feeble Files game.
@item Electronic Arts CMV video  @tab     @tab  X
    @tab Used in NHL 95 game.
@item Electronic Arts Madcow video  @tab     @tab  X
@item Electronic Arts TGV video  @tab     @tab  X
@item Electronic Arts TGQ video  @tab     @tab  X
@item Electronic Arts TQI video  @tab     @tab  X
@item Escape 124             @tab     @tab  X
@item Escape 130             @tab     @tab  X
@item FFmpeg video codec #1  @tab  X  @tab  X
    @tab experimental lossless codec (fourcc: FFV1)
@item Flash Screen Video v1  @tab  X  @tab  X
    @tab fourcc: FSV1
@item Flash Screen Video v2  @tab     @tab  X
@item Flash Video (FLV)      @tab  X  @tab  X
    @tab Sorenson H.263 used in Flash
@item FM Screen Capture Codec  @tab     @tab  X
@item Forward Uncompressed   @tab     @tab  X
@item Fraps                  @tab     @tab  X
@item Go2Meeting             @tab     @tab  X
    @tab fourcc: G2M2, G2M3
@item Go2Webinar             @tab     @tab  X
    @tab fourcc: G2M4
@item H.261                  @tab  X  @tab  X
@item H.263 / H.263-1996     @tab  X  @tab  X
@item H.263+ / H.263-1998 / H.263 version 2  @tab  X  @tab  X
@item H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10  @tab  E  @tab  X
    @tab encoding supported through external library libx264 and OpenH264
@item HEVC                   @tab  X  @tab  X
    @tab encoding supported through external library libx265 and libkvazaar
@item HNM version 4          @tab     @tab  X
@item HuffYUV                @tab  X  @tab  X
@item HuffYUV FFmpeg variant @tab  X  @tab  X
@item IBM Ultimotion         @tab     @tab  X
    @tab fourcc: ULTI
@item id Cinematic video     @tab     @tab  X
    @tab Used in Quake II.
@item id RoQ video           @tab  X  @tab  X
    @tab Used in Quake III, Jedi Knight 2, other computer games.
@item IFF ILBM               @tab     @tab  X
    @tab IFF interleaved bitmap
@item IFF ByteRun1           @tab     @tab  X
    @tab IFF run length encoded bitmap
@item Intel H.263            @tab     @tab  X
@item Intel Indeo 2          @tab     @tab  X
@item Intel Indeo 3          @tab     @tab  X
@item Intel Indeo 4          @tab     @tab  X
@item Intel Indeo 5          @tab     @tab  X
@item Interplay C93          @tab     @tab  X
    @tab Used in the game Cyberia from Interplay.
@item Interplay MVE video    @tab     @tab  X
    @tab Used in Interplay .MVE files.
@item Iterated Systems ClearVideo @tab     @tab  X
    @tab I-frames only
@item Karl Morton's video codec  @tab     @tab  X
    @tab Codec used in Worms games.
@item Kega Game Video (KGV1) @tab      @tab  X
    @tab Kega emulator screen capture codec.
@item Lagarith               @tab     @tab  X
@item LCL (LossLess Codec Library) MSZH  @tab     @tab  X
@item LCL (LossLess Codec Library) ZLIB  @tab  E  @tab  E
@item LOCO                   @tab     @tab  X
@item LucasArts SANM         @tab     @tab  X
    @tab Used in LucasArts SMUSH animations.
@item lossless MJPEG         @tab  X  @tab  X
@item MagicYUV Lossless Video @tab    @tab  X
@item Microsoft ATC Screen   @tab     @tab  X
    @tab Also known as Microsoft Screen 3.
@item Microsoft Expression Encoder Screen  @tab     @tab  X
    @tab Also known as Microsoft Titanium Screen 2.
@item Microsoft RLE          @tab     @tab  X
@item Microsoft Screen 1     @tab     @tab  X
    @tab Also known as Windows Media Video V7 Screen.
@item Microsoft Screen 2     @tab     @tab  X
    @tab Also known as Windows Media Video V9 Screen.
@item Microsoft Video 1      @tab     @tab  X
@item Mimic                  @tab     @tab  X
    @tab Used in MSN Messenger Webcam streams.
@item Miro VideoXL           @tab     @tab  X
    @tab fourcc: VIXL
@item MJPEG (Motion JPEG)    @tab  X  @tab  X
@item Mobotix MxPEG video    @tab     @tab  X
@item Motion Pixels video    @tab     @tab  X
@item MPEG-1 video           @tab  X  @tab  X
@item MPEG-2 video           @tab  X  @tab  X
@item MPEG-4 part 2          @tab  X  @tab  X
    @tab libxvidcore can be used alternatively for encoding.
@item MPEG-4 part 2 Microsoft variant version 1  @tab     @tab  X
@item MPEG-4 part 2 Microsoft variant version 2  @tab  X  @tab  X
@item MPEG-4 part 2 Microsoft variant version 3  @tab  X  @tab  X
@item Nintendo Gamecube THP video  @tab     @tab  X
@item NuppelVideo/RTjpeg     @tab     @tab  X
    @tab Video encoding used in NuppelVideo files.
@item On2 VP3                @tab     @tab  X
    @tab still experimental
@item On2 VP5                @tab     @tab  X
    @tab fourcc: VP50
@item On2 VP6                @tab     @tab  X
    @tab fourcc: VP60,VP61,VP62
@item On2 VP7                @tab     @tab  X
    @tab fourcc: VP70,VP71
@item VP8                    @tab  E  @tab  X
    @tab fourcc: VP80, encoding supported through external library libvpx
@item VP9                    @tab  E  @tab  X
    @tab Encoding supported through external library libvpx
@item planar RGB             @tab     @tab  X
    @tab fourcc: 8BPS
@item Q-team QPEG            @tab     @tab  X
    @tab fourccs: QPEG, Q1.0, Q1.1
@item QuickTime 8BPS video   @tab     @tab  X
@item QuickTime Animation (RLE) video  @tab  X  @tab  X
    @tab fourcc: 'rle '
@item QuickTime Graphics (SMC)  @tab     @tab  X
    @tab fourcc: 'smc '
@item QuickTime video (RPZA) @tab     @tab  X
    @tab fourcc: rpza
@item R10K AJA Kona 10-bit RGB Codec     @tab     @tab  X
@item R210 Quicktime Uncompressed RGB 10-bit     @tab     @tab  X
@item Raw Video              @tab  X  @tab  X
@item RealVideo 1.0          @tab  X  @tab  X
@item RealVideo 2.0          @tab  X  @tab  X
@item RealVideo 3.0          @tab     @tab  X
    @tab still far from ideal
@item RealVideo 4.0          @tab     @tab  X
@item Renderware TXD (TeXture Dictionary)  @tab     @tab  X
    @tab Texture dictionaries used by the Renderware Engine.
@item RL2 video              @tab     @tab  X
    @tab used in some games by Entertainment Software Partners
@item Sierra VMD video       @tab     @tab  X
    @tab Used in Sierra VMD files.
@item Silicon Graphics Motion Video Compressor 1 (MVC1)  @tab     @tab  X
@item Silicon Graphics Motion Video Compressor 2 (MVC2)  @tab     @tab  X
@item Silicon Graphics RLE 8-bit video  @tab     @tab  X
@item Smacker video          @tab     @tab  X
    @tab Video encoding used in Smacker.
@item SMPTE VC-1             @tab     @tab  X
@item Sony PlayStation MDEC (Motion DECoder)  @tab     @tab  X
@item Sorenson Vector Quantizer 1  @tab  X  @tab  X
    @tab fourcc: SVQ1
@item Sorenson Vector Quantizer 3  @tab     @tab  X
    @tab fourcc: SVQ3
@item Sunplus JPEG (SP5X)    @tab     @tab  X
    @tab fourcc: SP5X
@item TechSmith Screen Capture Codec  @tab     @tab  X
    @tab fourcc: TSCC
@item TechSmith Screen Capture Codec 2  @tab     @tab  X
    @tab fourcc: TSC2
@item Theora                 @tab  E  @tab  X
    @tab encoding supported through external library libtheora
@item Tiertex Limited SEQ video  @tab     @tab  X
    @tab Codec used in DOS CD-ROM FlashBack game.
@item Ut Video               @tab  X  @tab  X
@item v210 QuickTime uncompressed 4:2:2 10-bit     @tab  X  @tab  X
@item v410 QuickTime uncompressed 4:4:4 10-bit     @tab  X  @tab  X
@item VBLE Lossless Codec    @tab     @tab  X
@item VMware Screen Codec / VMware Video  @tab     @tab  X
    @tab Codec used in videos captured by VMware.
@item Westwood Studios VQA (Vector Quantized Animation) video  @tab     @tab  X
@item Windows Media Image    @tab     @tab  X
@item Windows Media Video 7  @tab  X  @tab  X
@item Windows Media Video 8  @tab  X  @tab  X
@item Windows Media Video 9  @tab     @tab  X
    @tab not completely working
@item Wing Commander III / Xan  @tab     @tab  X
    @tab Used in Wing Commander III .MVE files.
@item Wing Commander IV / Xan  @tab     @tab  X
    @tab Used in Wing Commander IV.
@item Winnov WNV1            @tab     @tab  X
@item WMV7                   @tab  X  @tab  X
@item YAMAHA SMAF            @tab  X  @tab  X
@item Psygnosis YOP Video    @tab     @tab  X
@item ZLIB                   @tab  X  @tab  X
    @tab part of LCL, encoder experimental
@item Zip Motion Blocks Video  @tab   X @tab  X
    @tab Encoder works only in PAL8.
@end multitable

@code{X} means that encoding (resp. decoding) is supported.

@code{E} means that support is provided through an external library.

@section Audio Codecs

@multitable @columnfractions .4 .1 .1 .4
@item Name @tab Encoding @tab Decoding @tab Comments
@item 8SVX audio             @tab     @tab  X
@item AAC                    @tab  E  @tab  X
    @tab encoding supported through external library libfaac and libvo-aacenc
@item AC-3                   @tab IX  @tab  X
@item ADPCM 4X Movie         @tab     @tab  X
@item ADPCM CDROM XA         @tab     @tab  X
@item ADPCM Creative Technology @tab     @tab  X
    @tab 16 -> 4, 8 -> 4, 8 -> 3, 8 -> 2
@item ADPCM Electronic Arts  @tab     @tab  X
    @tab Used in various EA titles.
@item ADPCM Electronic Arts Maxis CDROM XS  @tab     @tab  X
    @tab Used in Sim City 3000.
@item ADPCM Electronic Arts R1  @tab     @tab  X
@item ADPCM Electronic Arts R2  @tab     @tab  X
@item ADPCM Electronic Arts R3  @tab     @tab  X
@item ADPCM Electronic Arts XAS @tab     @tab  X
@item ADPCM G.722            @tab  X  @tab  X
@item ADPCM G.726            @tab  X  @tab  X
@item ADPCM IMA AMV          @tab     @tab  X
    @tab Used in AMV files
@item ADPCM IMA Electronic Arts EACS  @tab     @tab  X
@item ADPCM IMA Electronic Arts SEAD  @tab     @tab  X
@item ADPCM IMA Funcom       @tab     @tab  X
@item ADPCM IMA QuickTime    @tab  X  @tab  X
@item ADPCM IMA Loki SDL MJPEG  @tab     @tab  X
@item ADPCM IMA WAV          @tab  X  @tab  X
@item ADPCM IMA Westwood     @tab     @tab  X
@item ADPCM ISS IMA          @tab     @tab  X
    @tab Used in FunCom games.
@item ADPCM IMA Duck DK3     @tab     @tab  X
    @tab Used in some Sega Saturn console games.
@item ADPCM IMA Duck DK4     @tab     @tab  X
    @tab Used in some Sega Saturn console games.
@item ADPCM Microsoft        @tab  X  @tab  X
@item ADPCM MS IMA           @tab  X  @tab  X
@item ADPCM Nintendo Gamecube THP  @tab     @tab  X
@item ADPCM QT IMA           @tab  X  @tab  X
@item ADPCM SEGA CRI ADX     @tab  X  @tab  X
    @tab Used in Sega Dreamcast games.
@item ADPCM Shockwave Flash  @tab  X  @tab  X
@item ADPCM SMJPEG IMA       @tab     @tab  X
    @tab Used in certain Loki game ports.
@item ADPCM Sound Blaster Pro 2-bit  @tab     @tab  X
@item ADPCM Sound Blaster Pro 2.6-bit  @tab     @tab  X
@item ADPCM Sound Blaster Pro 4-bit  @tab     @tab  X
@item ADPCM VIMA
    @tab Used in LucasArts SMUSH animations.
@item ADPCM Westwood Studios IMA @tab     @tab  X
    @tab Used in Westwood Studios games like Command and Conquer.
@item ADPCM Yamaha           @tab  X  @tab  X
@item AMR-NB                 @tab  E  @tab  X
    @tab encoding supported through external library libopencore-amrnb
@item AMR-WB                 @tab  E  @tab  X
    @tab encoding supported through external library libvo-amrwbenc
@item Amazing Studio PAF Audio @tab     @tab  X
@item Apple lossless audio   @tab  X  @tab  X
    @tab QuickTime fourcc 'alac'
@item ATRAC1                 @tab     @tab  X
@item ATRAC3                 @tab     @tab  X
@item ATRAC3+                @tab     @tab  X
@item Bink Audio             @tab     @tab  X
    @tab Used in Bink and Smacker files in many games.
@item Delphine Software International CIN audio  @tab     @tab  X
    @tab Codec used in Delphine Software International games.
@item Digital Speech Standard - Standard Play mode (DSS SP) @tab     @tab  X
@item Discworld II BMV Audio @tab     @tab  X
@item COOK                   @tab     @tab  X
    @tab All versions except 5.1 are supported.
@item DCA (DTS Coherent Acoustics)  @tab     @tab  X
    @tab supported extensions: XCh, XLL (partially)
@item DPCM id RoQ            @tab  X  @tab  X
    @tab Used in Quake III, Jedi Knight 2, other computer games.
@item DPCM Interplay         @tab     @tab  X
    @tab Used in various Interplay computer games.
@item DPCM Sierra Online     @tab     @tab  X
    @tab Used in Sierra Online game audio files.
@item DPCM Sol               @tab     @tab  X
@item DPCM Xan               @tab     @tab  X
    @tab Used in Origin's Wing Commander IV AVI files.
@item DSP Group TrueSpeech   @tab     @tab  X
@item DV audio               @tab     @tab  X
@item Enhanced AC-3          @tab  X  @tab  X
@item FLAC (Free Lossless Audio Codec)  @tab  X  @tab  IX
@item G.723.1                @tab  X  @tab  X
@item GSM                    @tab  E  @tab  X
    @tab encoding supported through external library libgsm
@item GSM Microsoft variant  @tab  E  @tab  X
    @tab encoding supported through external library libgsm
@item IAC (Indeo Audio Coder)  @tab     @tab  X
@item iLBC (Internet Low Bitrate Codec) @tab  E  @tab  E
    @tab encoding and decoding supported through external library libilbc
@item IMC (Intel Music Coder)  @tab     @tab  X
@item MACE (Macintosh Audio Compression/Expansion) 3:1  @tab     @tab  X
@item MACE (Macintosh Audio Compression/Expansion) 6:1  @tab     @tab  X
@item MLP (Meridian Lossless Packing)  @tab     @tab  X
    @tab Used in DVD-Audio discs.
@item Monkey's Audio         @tab     @tab  X
    @tab Only versions 3.97-3.99 are supported.
@item MP1 (MPEG audio layer 1)  @tab     @tab IX
@item MP2 (MPEG audio layer 2)  @tab IE  @tab IX
    @tab encoding supported also through external library TwoLAME
@item MP3 (MPEG audio layer 3)  @tab  E  @tab IX
    @tab encoding supported through external library LAME, ADU MP3 and MP3onMP4 also supported
@item MPEG-4 Audio Lossless Coding (ALS)  @tab     @tab  X
@item Musepack SV7           @tab     @tab  X
@item Musepack SV8           @tab     @tab  X
@item Nellymoser Asao        @tab  X  @tab  X
@item On2 AVC (Audio for Video Codec) @tab     @tab  X
@item Opus                   @tab  E  @tab  E
    @tab supported through external library libopus
@item PCM A-law              @tab  X  @tab  X
@item PCM mu-law             @tab  X  @tab  X
@item PCM signed 16-bit big-endian planar  @tab     @tab  X
@item PCM signed 16-bit little-endian planar  @tab     @tab  X
@item PCM signed 24-bit little-endian planar  @tab     @tab  X
@item PCM signed 32-bit little-endian planar  @tab     @tab  X
@item PCM 32-bit floating point big-endian  @tab  X  @tab  X
@item PCM 32-bit floating point little-endian  @tab  X  @tab  X
@item PCM 64-bit floating point big-endian  @tab  X  @tab  X
@item PCM 64-bit floating point little-endian  @tab  X  @tab  X
@item PCM D-Cinema audio signed 24-bit   @tab  X  @tab  X
@item PCM signed 8-bit       @tab  X  @tab  X
@item PCM signed 16-bit big-endian  @tab  X  @tab  X
@item PCM signed 16-bit little-endian  @tab  X  @tab  X
@item PCM signed 24-bit big-endian  @tab  X  @tab  X
@item PCM signed 24-bit little-endian  @tab  X  @tab  X
@item PCM signed 32-bit big-endian  @tab  X  @tab  X
@item PCM signed 32-bit little-endian  @tab  X  @tab  X
@item PCM signed 16/20/24-bit big-endian in MPEG-TS  @tab     @tab  X
@item PCM unsigned 8-bit     @tab  X  @tab  X
@item PCM unsigned 16-bit big-endian  @tab  X  @tab  X
@item PCM unsigned 16-bit little-endian  @tab  X  @tab  X
@item PCM unsigned 24-bit big-endian  @tab  X  @tab  X
@item PCM unsigned 24-bit little-endian  @tab  X  @tab  X
@item PCM unsigned 32-bit big-endian  @tab  X  @tab  X
@item PCM unsigned 32-bit little-endian  @tab  X  @tab  X
@item PCM Zork               @tab     @tab  X
@item QCELP / PureVoice      @tab     @tab  X
@item QDesign Music Codec 2  @tab     @tab  X
    @tab There are still some distortions.
@item RealAudio 1.0 (14.4K)  @tab  X  @tab  X
    @tab Real 14400 bit/s codec
@item RealAudio 2.0 (28.8K)  @tab     @tab  X
    @tab Real 28800 bit/s codec
@item RealAudio 3.0 (dnet)   @tab IX  @tab  X
    @tab Real low bitrate AC-3 codec
@item RealAudio Lossless     @tab     @tab  X
@item RealAudio SIPR / ACELP.NET @tab     @tab  X
@item Shorten                @tab     @tab  X
@item Sierra VMD audio       @tab     @tab  X
    @tab Used in Sierra VMD files.
@item Smacker audio          @tab     @tab  X
@item SMPTE 302M AES3 audio  @tab     @tab  X
@item Speex                  @tab  E  @tab  E
    @tab supported through external library libspeex
@item TAK (Tom's lossless Audio Kompressor)  @tab     @tab  X
@item True Audio (TTA)       @tab     @tab  X
@item TrueHD                 @tab     @tab  X
    @tab Used in HD-DVD and Blu-Ray discs.
@item TwinVQ (VQF flavor)    @tab     @tab  X
@item Vorbis                 @tab  E  @tab  X
    @tab A native but very primitive encoder exists.
@item Voxware MetaSound      @tab     @tab  X
@item WavPack                @tab  E  @tab  X
    @tab supported through external library libwavpack
@item Westwood Audio (SND1)  @tab     @tab  X
@item Windows Media Audio 1  @tab  X  @tab  X
@item Windows Media Audio 2  @tab  X  @tab  X
@item Windows Media Audio Lossless @tab  @tab  X
@item Windows Media Audio Pro @tab    @tab  X
@item Windows Media Audio Voice @tab  @tab  X
@end multitable

@code{X} means that encoding (resp. decoding) is supported.

@code{E} means that support is provided through an external library.

@code{I} means that an integer-only version is available, too (ensures high
performance on systems without hardware floating point support).

@section Subtitle Formats

@multitable @columnfractions .4 .1 .1 .1 .1
@item Name @tab Muxing @tab Demuxing @tab Encoding @tab Decoding
@item SSA/ASS      @tab X @tab X @tab X @tab X
@item DVB          @tab X @tab X @tab X @tab X
@item DVD          @tab X @tab X @tab X @tab X
@item PGS          @tab   @tab   @tab   @tab X
@item SubRip (SRT) @tab X @tab X @tab   @tab X
@item XSUB         @tab   @tab   @tab X @tab X
@end multitable

@code{X} means that the feature is supported.

@section Network Protocols

@multitable @columnfractions .4 .1
@item Name         @tab Support
@item file         @tab X
@item Gopher       @tab X
@item HLS          @tab X
@item HTTP         @tab X
@item HTTPS        @tab X
@item Icecast      @tab X
@item MMSH         @tab X
@item MMST         @tab X
@item pipe         @tab X
@item RTMP         @tab X
@item RTMPE        @tab X
@item RTMPS        @tab X
@item RTMPT        @tab X
@item RTMPTE       @tab X
@item RTMPTS       @tab X
@item RTP          @tab X
@item SCTP         @tab X
@item TCP          @tab X
@item TLS          @tab X
@item UDP          @tab X
@end multitable

@code{X} means that the protocol is supported.

@code{E} means that support is provided through an external library.


@section Input/Output Devices

@multitable @columnfractions .4 .1 .1
@item Name              @tab Input  @tab Output
@item ALSA              @tab X      @tab X
@item BKTR              @tab X      @tab
@item Linux framebuffer @tab X      @tab
@item JACK              @tab X      @tab
@item LIBCDIO           @tab X
@item LIBDC1394         @tab X      @tab
@item OSS               @tab X      @tab X
@item Pulseaudio        @tab X      @tab
@item Video4Linux2      @tab X      @tab
@item VfW capture       @tab X      @tab
@item X11 grabbing      @tab X      @tab
@end multitable

@code{X} means that input/output is supported.

@bye