UsbVideoClass YUV formats don't work

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From: shinji watanabe (watashin_at_mvision.co.jp)
Date: 01/13/05 

Date: Thu, 13 Jan 2005 10:39:13 +0900

Hi All.

I am developping USB Video Class device.
Our device will support YUV2 Format ans
Isochronous image stream.
I choiced Payload umcompressed format.

I tested this device by AmCap and GraphEdit.
When I clicked AmCap, AmCap said this Graph can't preview.

When I clicked GraphEdit and was connecting
Our device unit and a display rendere unit,
following error message box appeared
and I was able to connect these units.

These filters cannot agree on a connection.
Verify type compatibility of input pin and output pin.
( return code : 0x80040217 )

I found VS_PROBE_CONTROL(GET_CUR / SET_CUR)
requests by USB Analizer.
But I didn't find VS_COMMIT_CONTROL(SET_CUR).

I guess there are in inconsistency YUYV Format/Frame Descriptors or Endpoint
Descriptors.
But, I can't find.

Would you tel me documents or guides to find inconsistency ?

best regards.
shinji watanabe

Relevant Pages

  • Re: I420 format in 64bit application
    ... > format be used in 64bit amcap application? ... Or do I need install video codec ... when run amcap 32 version, ... Look at which filterare used in the 32bit version using GraphEdit (and ...
    (microsoft.public.win32.programmer.directx.video)
  • Re: AVStream driver show upside-down video for RGB24 format
    ... It make correct display for RGB24 format. ... I got black display with YUY2 format in AMCAP. ... I just curious if any driver use negative biHeight and ...
    (microsoft.public.development.device.drivers)
  • I420 format in 64bit application
    ... But the application report " The graph cannot preview". ... format be used in 64bit amcap application? ... Or do I need install video codec ... when run amcap 32 version, ...
    (microsoft.public.win32.programmer.directx.video)