Question for ffdshow developers

[Prettz]

My question is does ffdshow always use the divx 3.11 fourcc when playing divx 3.11 video?
I *thought* I noticed subtle differences in color in dark scenes between using the normal divx 3.11 decoder and using dffshow. Dark scenes seemed to look slightly darker and muddier using dffshow (I could be wrong though).
Also, I definitely noticed watching Azumanga Daioh color bleeding errors around the subtitles that look exactly like what happens when YUV color conversion isn't done perfectly. The errors weren't visible when I viewed it with the normal divx 3.11 decoder.

edit: I would have posted a few screenshots, but I can't figure out how to get frame captures at the moment.

[Teegedeck]

A fourcc is only there to indicate which codec the file was encoded with. FFDSHOW doesn't use the original DivX3.11-DLLs to decode DivX3.11 content, there only is an option for use of XviD instead of FFDSHOW's libraries for XviD and DivX, but nothing like that for DivX3.11.

[Prettz]

Sorry, when I said fourcc I meant the colorspace.

[milan]

edit: I would have posted a few screenshots, but I can't figure out how to get frame captures at the moment.


More helpful would be short part of that AVI where the problem is noticeable.
Screenshots can be taken using ffdshow Grab feature too. Set output type to BMP and press "Grab now" and current frame should be stored to disk. However this is done prior color format conversion, so if the bug is there it won't help much.