VideoLAN Wiki - User contributions [en]

DivX

2006-05-09T07:14:00Z

AndyK: likified +seealso +categories

DivX stands for '''Di'''gital '''V'''ideo '''X'''treme.
It is known as a video codec which has good compression ratios while preserving a good quality based on the [[H263|H.263]] codec.<br />
When [http://www.divx.com DivX Inc.] introduced the DivX6 format DivX became a container, too. The file extension for the DivX [[container]] is .divx (''Still under developement'') but normally the DivX [[encoding|encoded]] video will reside inside an [[AVI]] container.

== See Also ==
* [[Codec]]
* [[Container]]
* [[AVI]]
* [[H263]]

[[category:Video Codecs]]
[[category:Container Formats]]

DivX

2006-05-09T07:03:48Z

AndyK: new

== DivX ==
DivX stands for '''Di'''gital '''V'''ideo '''X'''treme.
It is known as a video codec which has good compression ratios while preserving a good quality based on the H.263 codec.
When DivX Inc. introduced the DivX6 format DivX became a container, too. The file extension for the DivX container is .divx (''Still under developement'')

Talk:AC3

2006-05-09T06:50:38Z

AndyK: Is A52 the same as AC3?

== Is A52 the same as AC3? ==

I was looking for definition of A52, but was redirected here. So looking for mentioning A52 in this article, but nothing found... --[[User:AndyK|AndyK]] 08:50, 9 May 2006 (CEST)

Codec

2006-05-09T06:46:50Z

AndyK: /* Audio Codecs */ linkfix

''See Also the [http://www.videolan.org/doc/vlc-user-guide/en/ch02.html Official documentation: list of codecs]''

''For more information of codecs in general, look ar [[wikipedia:Codecs|wikipedia]] and [http://wiki.multimedia.cx wiki.multimedia.cx].''

Codec is short for coder/decoder.
For portability to almost all decoders, we recommend
using the [[MPEG-1]] standard of vcodec=mp1v, acodec=mpga, and mux=mpeg1.

To save a file in a different codec, you can use the transcoding [[wizard]] or [[transcode]] from the [[command prompt]] with a command like this:
:vlc file --sout='#transcode{vcodec=''mp1v'', vb=''1024'', acodec=''mpga'', ab=''128''}:std{access=file, mux=''mpeg1'', url=''C:\file_name.mpg''}'

==Video Codecs==
Use the "name" part in your vcodec=... commands

{|
| '''''name'''''
| ''description''
|-
| '''mp1v'''
| [[MPEG-1]] Video - recommended for portability
|-
| '''mp2v'''
| [[MPEG-2]] Video - used in DVDs
|-
| '''mp4v'''
| [[MPEG-4]] Video
|-
| '''SVQ1'''
| [[Sorenson Video]] v1
|-
| '''SVQ3'''
| Sorenson Video v3
|-
| '''WMV1'''
| [[Windows Media Video]] v1
|-
| '''WMV2'''
| Windows Media Video v2
|-
| WMV3
| Windows Media Video v3, also called Windows Media 9 ([[Common_Problems#WMV_files|unsupported]])
|-
| '''DVSD'''
| [[Digital Video]]
|-
| '''MJPG'''
| [[MJPEG]]
|-
| '''H263'''
| [[H263]]
|-
| '''h264'''
| [[H264]]
|-
| '''theo'''
| [[Theora]]
|-
| '''IV20'''
| [[Indeo Video]]
|-
| IV40
| Indeo Video version 4 or later ([[Common_Problems#Problems_playing_types_of_files|unsupported]])
|-
| '''RV10'''
| [[Real Media Video]]
|-
| '''cvid'''
| [[Cinepak]]
|-
| '''VP31'''
| [[On2 VP]]
|-
| '''FLV1'''
| [[Flash Video]]
|-
| '''CYUV'''
| [[Creative YUV]]
|-
| '''HFYU'''
| [[Huffman YUV]]
|-
| '''MSVC'''
| [[Microsoft]] Video v1
|-
| '''MRLE'''
| Microsoft [[RLE]] Video
|-
| '''AASC'''
| [[Autodesc]] RLE Video
|-
| '''FLIC'''
| [[FLIC]] video
|-
| '''QPEG'''
| [[QPEG]] Video
|}

==Audio Codecs==
Use the "name" part in your acodec=... commands

{|
| '''''name'''''
| ''description''
|-
| '''mpga'''
| [[MPEG audio]] (recommended for portability)
|-
| '''mp3'''
| [[MP3 audio|MPEG Layer 3 audio]]
|-
| '''mp4a'''
| [[MP4 audio]]
|-
| '''a52'''
| [[Dolby Digital]] ([[A52]] or [[AC3]])
|-
| '''vorb'''
| [[Vorbis]]
|-
| '''spx'''
| [[Speex]]
|-
| '''flac''' or '''fl32'''
| [[FLAC]]
|}
===No-"name" Codecs===

* [[DTS]]
* [[AAC (Advanced Audio Coding)]]
* [[Windows Media Audio]]
* [[DV Audio]]
* [[LPCM]]
* [[ADPCM]]
* [[AMR]]
* [[QuickTime Audio]]
* [[Real Audio]]
* [[MACE]]
* [[MusePack]]

==Subtitle Codecs==
{|
|-
| '''CVD'''
| [[CVD|CVD Subtitles]]
|-
| '''SVCD (Overlay Graphics)'''
| [http://www.vcdimager.org/pub/vcdimager/manuals/0.7/svcd-ogt-subtitles.html SVCD Subtitle (OGT) Information]
|-
| '''SRT'''
| [[SRT|Subrip Subtitles]]
|-
| '''SSA/ASS'''
| [[SSA|Sub Station Alpha or Advanced Sub Station Subtitles]]
|-
| '''SubViewer'''
| [[Subviewer|SubViewer Subtitles]]
|-
| '''VobSub'''
| [[VobSub|VobSub Subtitles]]
|-
| '''DVD subtitles'''
| [[DVD Subtitles]]
|-
| '''VPlayer'''
| [[Vplayer Subtitles]]
|-
| '''MicroDVD'''
| [[MicroDVD Subtitles]]
|-
| '''Sami'''
| [[Sami Subtitles]]

|}
[[Link title]]

== Muxers ==
Use the "name" part in you mux=... commands

{|
| '''''name'''''
| ''description''
|-
| '''mpeg1'''
| [[MPEG-1]] multiplexing - recommended for portability. Only works with mp1v video and mpga audio, but works on all known players
|-
| '''ts'''
| [[MPEG-TS|MPEG Transport Stream]], primarily used for streaming MPEG. Also used in DVDs
|-
| '''ps'''
| [[MPEG-PS|MPEG Program Stream]], primarily used for saving MPEG data to disk
|-
| '''avi'''
| [[AVI]]
|-
| '''mp4'''
| [[MPEG-4]]
|-
| '''asf'''
| [[ASF]]
|-
| '''dummy'''
| [[dummy]] output, can be used in creation of [[MP3]] files.
|-
| '''ogg'''
| [http://www.xiph.org/ Xiph.org's] [[ogg]] container format. Can contain audio, video, and metadata.
|}

== See Also ==
* http://www.fourcc.org/

{{stub}}

Ogg

2006-05-09T06:46:15Z

AndyK: linkified

{{wikipedia|Ogg}}
Being a [[Container]] format, ogg can embed third-party codecs (such as [[DivX]], [[Dirac]], [[XviD]], [[MP3]] and others) but usually Ogg is used with the following.<BR>
<BR>
*Audio codecs
**lossy
***[[Speex]] handles voice data at low bitrates (~8-32 kbit/s/channel)
***[[Vorbis]] handles general audio data at mid- to high-level bitrates (~16-256 kbit/s/channel)
**lossless
***[[FLAC]] handles archival and high fidelity audio data

*Text codec
**Writ a text codec designed to embed subtitles or captions

*Video codecs
**[[Theora]] based upon On2's [[VP3]], it is targeted at competing with MPEG-4 video (i.e. [[DivX]] and [[XviD]]), [[RealVideo]], or [[WMV|Windows Media Video]].
**[[Tarkin]] an experimental codec utilizing 3D wavelet transforms. It has been put on hold, with Theora becoming the main focus for video encoding.

(Taken from the wikipedia article)