Before lavc used "DIVX" fourcc for its mpeg4, which was bad for
- DIVX is actually a trademark of the lamers who made divx, not a
* generic name.
- DIVX fourcc means Divx4, and lavc is NOT divx4-compatible unless you
* omit all the fancy options. You'd have to use DX50 instead if qpel,
* bframes, etc. are enabled..
- DIVX fourcc causes DIVX or XVID codec to be used for decoding on
* windows, which are sometimes buggy.
The decision was made to make our own fourcc, FMP4, for ffmpeg mpeg4.
In the long term this is the best solution, I think, but in the short
term it's a pain if you're trying to make files playable by windows
newbies without current ffdshow installed. Possible solutions:
- Tell the windows users to install latest ffdshow for decoding.
- Override the fourcc with -ffourcc option to mencoder. This can be
* done without reencoding just by using -ovc copy -oac copy.
* Recommended fourcc's would be XVID (probably safest), MP4S
* ("official" MS fourcc for mpeg4, but this might cause broken MS
* codec to try to decode it..?), or DX50.