ffdshow as MJPEG decompressor (VFW)

[stax76]

I've installed ffdshow and enabled MJPEG while setup, now if I make a avs file using AVISource I get a error 'couldn't locate decompressor for FourCC MJPG'. I'm using a rather new ffdshow build.

I also tried to modify the reg key:

key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32

value name: VIDC.MJPG
value: ff_vfw.dll

ffdshow don't seem to change that key but it didn't help anyway.

[namchik]

stax
didn't you forget to go to "VFW codec configuration" (not "Video decoder configuration") and on "Decoder" page make "libavcodec" decode MJPEG ?

or you could use DirectShowSource instead of AviSource in your avs-script

[stax76]

Thanks, I was in Video decoder configuration, works now. Does anybody know why ffdshow don't modify the reg key above, it leads to other codecs taking precedence.

[hellfred]

Does anybody know why ffdshow don't modify the reg key above, it leads to other codecs taking precedence.
You need to ask Milan Cutka.

Hellfred

[celtic_druid]

If you added a vidc entry for all the different FourCC's though you would end up with like 20 ffdshow entries in you VfW codec selection.

[stax76]

Right know it's not a important issue.