Converting frames to JPEG

I am using the Blackmagic SDK on Windows 10. I am trying to modify the
the CapturePreview sample program to send JPEGs for the frames received to another process.
Im am trying to use the ConvertFrame() method by creating a new frame with the 'bmdFormat12BitRAWJPEG' format. I have not yet tested this code. My problem is that I need to know the
size of the data in the new compressed frame. Obviously, I cannot use GetRowBytes() because this
is not applicable to JPEG compressed data.

Any help would be appreciated.

[Cameron Nichols]

Hi Paul,

The pixel format bmdFormat12BitRAWJPEG is for Cintel only, the DeckLink API itself does not support image compression.

Please have a look at the StillsCSharp (C#) and the CaptureStills (C++, PNG only) samples in the Desktop Video SDK package for working examples of how to capture a video frame to image file.

Regards
Cameron

Thank you for your prompt reply. I tried using the code from the CaptureStills project.
It is failing in the module ImageWriterWin.cpp. It is in the following code snippet:

// Bitmap pixel format WICPixelFormat32bppRGB will match Bgra32VideoFrame
result = bitmapFrame->SetPixelFormat(&pixelFormat);
if (FAILED(result) || (!IsEqualGUID(pixelFormat, GUID_WICPixelFormat32bppBGRA)))
// Unable to support 32-bit RGB
goto bail;

Is there something I can download so my system will support 32-bit RGB ? Or can I change
the frame capture code to use a different pixel format ?

Also, I would like to have the JPEG in memory not written to a file. Is there an easy method to
have it saved in memory ?