Video Codecs - too many ?

[Guest]

Help, Video codecs, their breeding like rabbits on my PC, can I delete some?

WMVideo Advanced Decoder DMO
WMVideo 8 Decoder DMO
Mpeg4s Decoder DMO
WMVideo 9 Decoder DMO
WMV Screen decoder DMO
WMVideo Decoder DMO
Mpeg43 Decoder DMO
Mpeg4 Decoder DMO
Alparysoft Lossless Codec
ArcSoft Mpeg Writer
DivX Encoder Filter
DV Video Encoder
ffdshow video encoder
Indeo® Video 5.11 Compression Filter
InterVideo MPEG Video Encoder
InterVideo MPEG4 Video Encoder
InterVideo Video Encoder
MJPEG Compressor
nanocosmos MPEG Video Encoder
ffdshow MPEG-4 Video Decoder
DivX Decoder Filter
MPEG Video Decoder
DirectVobSub (auto-loading version)
DivX Decoder Filter
VP6 Decompressor
Microsoft Screen Video Decompressor
Windows Media Video Decoder
Windows Media Video Decoder
InterVideo MPEG4 Video Decoder
XviD MPEG-4 Video Decoder
Microsoft MPEG-4 Video Decompressor
Microsoft MPEG-4 Video Decompressor
DV Video Decoder
VP7 Decompressor
Ligos MPEG Video Decoder
Elecard MPEG2 Video Decoder
InterVideo Video Decoder
Indeo® Video 5.11 Decompression Filter
Indeo® Video 4.5 Decompression Filter
AVI Draw
CyberLink MPEG Decoder
Video Port Manager
CoreAVC Video Decoder
MJPEG Decompressor
DivX Subtitle Decoder
AVI Decompressor
RadLight Theora Decoder
QT Decompressor
Alparysoft Lossless Codec
CamStudio Lossless Codec v1.0
Cinepak Codec by Radius
DivX® 6.2.2 Codec (1 Logical CPU)
MainConcept DV Codec 2.0.4
ffdshow Video Codec
Huffyuv v2.1.1
Ligos Indeo® Video 3.2
Intel Indeo® Video 4.5
Ligos Indeo® Video 5.11
Microsoft H.261 Video Codec
Microsoft H.263 Video Codec
Microsoft MPEG-4 Video Codec V2
Microsoft MPEG-4 Video Codec V3
Microsoft MPEG-4 Video Codec V1
Microsoft RLE
Microsoft Video 1
VP60® Simple Profile
VP61® Advanced Profile
VP62® Heightened Sharpness Profile
VP70® General Profile
x264 - H264/AVC encoder
XviD MPEG-4 Codec
XviD MPEG-4 Codec

 

[Jerry]

The question you need to answer is: what program installed these codecs and
is this program still installed so, therefore, do I need any and all of
these codecs? (We have no idea as to what you may need today and in the
future.)

 

[Guest]

Ok thanks Jerry, maybe best to just leave them all.

Sometimes I have several versions of the same codec, eg Xvid, wmv,
etc, but with only 4 letter codes they sometimes overwrite each other,
apparently 8 letter codes are available on some OS's other than
Windows, Linux, FreeBSD, MacX, and Unix, so maybe even more
versions of the same codec can exist on those PC's ?

Problem seems to be sometimes a video encoded with an old version
of a codec will not play correctly using a newer version of the same
codec, hence 5 versions of some codecs are still needed.

 

[zachd [MSFT]]

The fourCC code is a unique identifier for a codec bitstream. The 1.5+
million options here haven't been exhausted - I believe there are less than
600 video codecs out there.

The source of your problem is that people should not be reusing the same
fourCC for incompatible codecs. "DivX" is a horrible umbrella for a ton of
content that may or may not be handled by any given decoder. I'm imagining
that that's what you're having trouble with, since the development processes
there have been stunningly disconcerted and backwards over the years. =\

 

[Guest]

zachd, thank you for your reply.

Oh ! so 4 letter codes are not the problem, if everyone did the correct
think, and not keep using the same letter combination all the time, thanks

 

[Guest]

Zach, thank you for you reply.

Ah ! so the problem is not with just having only 4 letter codes, but that
people are reusing the same codes incorrectly.

Thanks