Media Engine throws MF_MEDIA_ENGINE_ERR_DECODE : HRESULT - 0x80004005 when dragging application from one display to another

Question

Hi all,

I'm working on a windows store media application and I'm having a problem when I drag the application from one display to another while playing.  If I drag the application from my VGA connected display to my DVI connected display I get MF_MEDIA_ENGINE_ERR_DECODE : HRESULT - 0x80004005.  This happens when going to the DVI connected display only.  When going the other way, the application continues to stream with no problem.  When looking at the MfTrace logs I see that the method MFCreateMediaSession() is called twice immediately before the error is issued.  This is confusing since there is no access to this method from a windows store app.  Visually, if I don't let go of the mouse when the app has transitioned to the other display it will continue to play audio though the video window is black.  Once I release the mouse button I get the error. The app has a custom source, scheme handler plus other custom media foundation pipeline components but all seem to be working appropriately.  any suggestions.   

Answer 1

Have not encountered this error code before

>This happens when going to the DVI connected display only

What does it mean? 

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Answer 2

I have two monitors connected to my computer.  One is connected via a VGA (15 pin) connection and the other is connected via a DVI connection.  If I start streaming on the VGA connected display, then while streaming drag and drop the application to the DVI connected display I get MF_MEDIA_ENGINE_ERR_DECODE : HRESULT - 0x80004005.  However, if I start streaming on the DVI connected display, then while streaming drag and drop the the app to the VGA connected display I get no error and the app continues to stream.  This is what I mean by "This happens when going to the DVI connected display only".

I have also tried pausing playback prior to dragging to the DVI connected display but upon resuming playback (un-pausing) I get the same error.  Doing this in the other direction (DVI -> VGA) yields no error.

I have not yet tested other multi-monitor scenarios i.e. VGA->HDMI, HDMI->DisplayPort, etc.