Re: Problems rendering RGB decoder output


Geraint Davies schrieb:

On 15 Nov 2006 07:23:10 -0800, mannson wrote:

Hi,

I'm still trying to write a DirectShow filter that decodes MPEG video
files and delivers RGB24 frames on its output.
The filtergraph so far:
test.mpg - MPEG-2 Splitter - MyMPEGDecoder

I'm now able to decode all frames, but I'm not able to connect the
output pin to a video renderer.
By right clicking on the decoder output pin "Render Pin" is greyed out.
My GetMediaType:


not sure why that would be greyed out. Can you view the media type in the
pin's properties? Is your GetMediaType ever called?

I really don't know what I've changed, but graphedit at least now lets
me render the output of my filter. But it just connects to a demuxer.
If I try to connect to a renderer manually it adds another MPEG decoder
in-between instead of connecting directly to the renderer.
I checked the media type of the output pin and it seems that every GUID
is set to GUID_NULL, although GetMediaType of my filter is called and
sets erything to appropriate values.

.

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