VMR9 letterbox/pillarbox?

[sebk]

Hello!

I want to have an OSD on top of the video and would like to use the VMR9 SetAlphaBitmap()-feature for that. The problem is that within my window (which is 16:9), the VMR9 scales 4:3-content in a way that the OSD only covers exactly the 4:3-area -- in other words, the so called "composition space" is a 4:3-square within my 16:9 window.

Now, I use the Elecard Push Demuxer and manually create its output-pins. On the video-output-pin I set the formattype to FORMAT_MPEG2_VIDEO and then set the dwControlFlags of VIDEOINFOHEADER2 to AMCONTROL_USED | AMCONTROL_PAD_TO_16x9.

Connection to the "MPEG-2 Video Decoder" succeeds -- however, the video-decoder neither honours these flags nor passes them through to the VMR9.

I've also set EM2VD_FormatVideoInfo to 1 or 2, to no avail.

Any hints? Also, if anyone knows of a different (performant & flickerfree) way to have an OSD with alpha over a directshow-video, let me know.

Regards

[IrinaM]

Hello sebk,
Unfortunately I cannot help you. Please send an email to our Technical Support.