[Jako]

http://www.fourcc.org

What im not sure is what "RealVideo" means in libve... Realvideo 7? 8? 9? 10

RealVideo 1.0 and RealVideo G2 (FourCC: rv10 and rv20) codec used in RealPlayer 6 and 7 was based on H.263, so it was not until the release of RealVideo 8/9/10 (FourCC: rv30 and rv40) that came with RealPlayer 8/9/10 respectivly that they based their video codec on H.264

Also Cedar has support for some codecs i never heard of... SORENSSON_H263?

SORENSSON_H263 = Sorenson Spark, which is basically an incomplete implementation of H.263, and much Flash Video content (as used on sites such as YouTube, Google Video, MySpace, etc.) used to be encoded in Sorenson Spark format before most of them switched to using VP6 or H.264 encoding that they have today.

im not even sure why they wasted time to add H263, MSMPEGV1/2/3 support at all, I consider H263 deprecated as well, so is WMV1/2

While the H.263 encoding standard is today considered a legacy design, ISO MPEG-4 is H.263 compatible in the sense that a basic H.263 bitstream is correctly decoded by an ISO MPEG-4 video decoder, so I guess they might just trow that in decoding of all H.263 codecs for free since they would only have to pay for the license once and be able to decode all of those.

http://wiki.multimedia.cx/index.php?title=H.263
http://wiki.multimedia.cx/index.php?title=ISO_MPEG-4

Thus you should be able to set all with a FourCC that is either for H.263 and ISO MPEG-4 (MPEG-4 Part 2 / MPEG-4 ASP / MPEG-4 SP) to be decoded by the ISO MPEG-4 video decoder in CedarX codec libraries?