DirectShow DVD and SampleGrabber

[themadmax]

Hello,

I'm create a graph to grab DVD video, with :
DVD Navigator
GPL MPEG-1/2 Decoder ( or Cyberlink Decoder )
Video Render

After I insert SampleGrabber between Decoder and Render. But it don't to want to connect ! I set SampleGrabber to mediaType RGB32 : This type is supported by decoder ouput pin.

If you have some idea, think

[Nic]

Been a long time since I used SampleGrabber. Make sure that MajorType, SubType & Format are exactly the same as the pin your trying to connect to. I'm guessing you may not have the formattype and/or format (VIDEOINFOHEADER?) nice enough for the decoder.

Might be easier to write your own filter instead of using SampleGrabber. That's normally what I do. If you start with the NullNull sample filter it would take no time at all.

-Nic

[themadmax]

Think a lot !
So I writting my Sample Grabber from contrast filter ( NullNull Filter was not in my platform SDK )
And I see that sample grabber support only FORMAT_VideoInfo, and the ouput of GLP MPEG-1/2 decoder give FORMAT_VideoInfo2 !
So i'm reformating code to change this. My grabber can connect to MPEG Decoder ! But now the renderer don't wan't to connect to my grabber :'( !
In graph edit, when I select grabber's render pin, error 0x80040231 : "The filter graph is circular"
I don't find filter sample using FORMAT_VideoInfo2, or the must : filter to convert FORMAT_VideoInfo into FORMAT_VideoInfo2 !

When I'm tracking bad return I found in class CBasePin::AttemptConnection, pReceivePin->ReceiveConnection return VFW_E_TYPE_NOT_ACCEPTED.

Think for u help. and sorry for my bad english