Bytesofinformation.com

 

Codecs

 

What Are They And How To Use Them

 

By

 

Scott Sekinger

 

9/10/2005

 

 

What is a Codec

 

A Codec (coder-decoder) is software components used to translate video or audio between its uncompressed form and the compressed form in which it is stored. 

 

How To Use Codec

 

You must first determine what type of codec you need before you can use a codec. It is hard to tell what type compression (codec) a file use by looking at the file extension, because a video file for example can be compressed in several different formats. An AVI file is an example of a video file that can be compressed in either DivX or the Xvid format or some other format. Below is a table based on the one from http://obooklage.free.fr/win_media/video_codecs.php of most of the audio and video codecs out there

 

 

  Codecs Video / Audio for the formats AVI ASF WMV and QuickTime
Video Codecs
Compagny
FOURCC
AVI
ASF
WMV
QTime
Quality
State
Encoding Speed
Site
Informations
DivX;) 3.11 -SBC
div3
 
Free
Near DVD quality, old but the best ! ( see Koepi ) You must install DivX3.11 before use.
XviD - 2 passes
xvid or div3
 
GNU
Near DVD, come from OpenDivx, amazing !
Microsoft MPEG4 V3
mp43
 
Locked
 
only Beta Version can encode and decode AVI
Microsoft MPEG4 V2
mp42
 
Free
Fast Archiving
DivX 5.x
divx
 
30$
Some problems for read 3.11 avi
DivX;) 3.11 Low
DivX
div3
 
Down
MultiMedia
DivX;) 3.11 Fast
DivX
div4
 
Down
MultiMedia
Microsoft ISOMPEG4
none
 
 
Locked
MultiMedia
Microsoft MPEG4 V1
mpg4
 
Free
MultiMedia
Microsoft V7
none
 
 
Locked
Near DVD
Microsoft V8
none
 
 
Locked
Near DVD
MEDIA 9
none
 
Free
Near DVD , Very good quality
DivX Projet Mayo
DivX:)
divx
 
Down
Continued by XviD Project
UB Video Stream Force
   
 
Licencing
   
PIC Video MJPEG
 
mjpg
 
Licencing
   
AVID AVI codec
avrn
?
Export AVID projects
HuffYUV
 
hfyu
 
Free
 
Capture / Video storage
Intel i263
Intel
i263
 
Free
old
IntelR3.1
Intel
       
Free
 
old
IntelR3.2
Intel
iv32
     
Free
 
old
Intel Indeo 5.10
iv50
?
The only cross container codec
Intel Indeo 4.3
iv41
?
   
msh261 - m261
         
Free
 
old
Pinnacle DC1000
 
PIN1
           
Pinnacle DC1000 32-bit AVI Codec v.2.0
msh263 - I420
         
Free
 
old
msh263 - m263
         
Free
 
old
msyuv - UYVY
         
Free
 
old
msyuv - YUY2
         
Free
 
old
msyuv - YVYU
         
Free
 
old
ntcodec
         
Free
 
old
pclepixl
         
Free
 
old
RLE
         
Free
   
VDONet
         
Free
   
VFCodec
         
Free
   
Microsoft Video 1
 
msvc
 
Free
old ( but inclued )
WinBond JPEG
         
Free
   
Sorenson
       
Licencing
 
Quicktime
Cinepak
Radius
cvid
Free
   
DivX Kristal
 
div3
       
Free
 
Down
Uninstall Decoder !
Angel Potion
   
   
Free
 
Down
Dangerous, Uninstall-it !

 

Audio Codec
Compagny
ID
AVI
ASF
WMV
QTime
Quality
State
Encoding Speed
Site
Informations
MP3
RaCodec
Profesionnal
 
Unlocked
famous MP3 ! Version 12
Ogg Vorbis
 
 
Free
New format : Best than MP3 !
WMA V1
   
 
Locked
Only for WMA/V
WMA V2
   
 
Locked
Only for WMA/V
Lernout&Hauspie
 
 
Free
 
old
ACELP.Net CELP
 
 
Free
old
ACELP.Ne SBCt
 
 
Free
old
IMA ADPCM
 
 
Free
old
M$ ADPCM
 
 
Free
old
M$ GSM 6.10
 
 
Free
For GSM
M$ G7.11 A-Law
 
 
Free
old
M$ G7.11 u-Law
 
 
Free
old
True Speech
 
 
Free
old
M$ G.723.1
 
 
Free
old
M$ PCM
 
 
Free
PCM convertor
Voxware MetaSound
 
 
Free
old
Voxware MetaVoice
 
 
Free
old
Voxware FileMode
 
 
Free
old
VoxwareBitstream
 
 
Free
old
MP3
Advanced
 
locked
Locked, Uninstall-it !
DivX;) Audio
DivX;)
DivX;) Audio
   
down
 
DivX;.3x
Dangerous, Uninstall-it !

 

I suggest downloading Gspot, a program which will tell you what type of codec a file is compressed in. Once you determine what codec you then download / install them and enjoy the file. The table above has links to the websites that have that you might need.  If it is not on the table then go to your favorite search engine's website and do a search on it.

 

Check out Andy Walker's article How Codecs Work for more information on how Codecs work.