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What is a Codec?
Short for compressor/decompressor, a codec is any technology for compressing
and decompressing data. Codecs can be implemented in software, hardware,
or a combination of both. Some popular codecs for computer video include
MPEG, Indeo and Cinepak.
questions about any of the codecs or questions in general, visit the Help page.
Windows Video Codecs
- Angelpotion
Codec - The Angelpotion video codec is an advanced mpeg4 codec.
It allows the viewing and encoding of high and low motion Divx avi files,
SmR-nAVI(mpeg4v3) avi files, Microsoft mpeg4(mp4, mp42, and mp43) avi
and asf files, and Angelpotion definitive mpeg4 avi files.
Mpeg4 Codec -
Windows* - Contains the MP4, MP42, and MP43 decompressors. If you should
install this codec and mpeg4 video still will not run on your system,
delete mpg4c32.dll and mpg4ds32.ax(if it exists) in your C:\windows\system\
directory and then reinstall the mpeg4 codec.
This install will also allow you to view nAVI encoded avi files from
#shadowrealm on the EFnet irc network
and the alt.binaries.movies.shadowrealm newsgroup.
If you have problems installing the mpeg4 codec or you would like to
be able to encode mpeg4 avi and asf video, get Windows Media Tools.
I263 Codec
- Windows 95/98 - I263 is an older codec and most people have abandoned
its use although the video quality is quite nice.
I263 Codec
- Windows NT/2000
Indeo Video Codecs
- Windows* - Contains the Indeo IR3*, IV4*, and IV5* codecs. Recently
the Ligos Corporation took over
Indeo video development from Intel Architecture Labs. They
have updated Indeo Video to Indeo Video 5.11 and will continue to develop
the technology in the future. Please visit the Ligos Corporations website
for more information and support.
DIVX Codec
- Windows* - Decompressor for avi files encoded with the divx codec.
Contains the div3 and div4 decompressors. The divx codec is now available
for Mac, Linux,
and BeOS operating
systems>
Cinepak Codec
- Windows* - Older Microsoft codec, no longer used widely. Contains
the cvid decompressor.
Sorenson Codec - Windows* - This
codec, sometimes referred to as vids:svq1 allows the playback and encoding
of .mov and .qt video from Apples Quicktime 4 technology. I have recanted
my negative criticism of the Quicktime encoding and the Quicktime viewer.
The newer technology that Sorenson and Apple are putting into the software
is high quality and very effective for use on the web. If you don't
have Quicktime, I recommend you give it a try.
IR21 Codec - Windows
95/98 - This is an older Indeo codec that a few users might need.
VCR2 Codec - This
is the codec used by ATI video capture cards to compress into avi format.
Avi movies captured with an ATI video card will not play on a non-ATI
system without installing this codec. Download and install display driver
ATIVCRx.exe. This will install all 5 ATI video codecs.
WINNOV Codec
- Windows 95/98 - This codec will play video captured with Winnov Videum
capture cards. The WINNOV Codec for
Windows NT/2000 is also available.
X263 Codec
- Windows* - This decompressor is used by certain cams to compress avi
video.
ASV1
Codec - Windows* - This codec is used by Asus video capture cards.
M-JPEG
Codec - Windows* - Motion JPEG decompressors
WIN TV Codec
- Windows* - This contains decompressors used by certain Hauppage WIN
TV video capture cards. Mac Video Codecs
Quicktime Codecs -
Download Quicktime 4 from Apple to get the Sorenson codec, sometimes
referred to as SVQ1 or vids:svq1. Sorenson and Quicktime 4 support
.mov and .qt movie files.
Indeo Video Codecs
- Latest Indeo Video drivers for the Mac OS. Quicktime 4 is required to use the
Indeo drivers.
DIVX Codec - The DIVX codec is now available.
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