A generic error occurred in GDI+ when process MJPEG on Winforms about flashcap

[AndyInside]

also when i capture in BMP format all is working fine! problem with MJPEG

[kekyo]

@AndyInside I think I have seen this problem before.
In Windows Forms, when Image.FromStream() is executed in a worker thread, it throws an exception.
I have not been able to reproduce this behavior in my environment, and again. The true reason is unknown...
However, since this is the second time this has happened, I decided to revise the sample code.

In 9fce01c with the modification, I used CopyImage() in the worker thread to copy the image once to an array, and Image.FromStream() is executed on the UI thread.

Does this fix work? If it works, I will merge it and reflect it.

[AndyInside]

thanks!!! by the way your sample code works nice on WPF but not on Winforms

[AndyInside]

checked, no the same thing... when i try to save frame to file, it can't be opened with paint or windows preview, but opened well with advanced viewers. something wrong with file content, something wrong with palette, because frame loads to Image with disabled validation (validateImageData) but when loaded property palette expose Exception. maybe it will helps you thanks!

[kekyo]

It may not be a fundamental solution, but if it's an MJPEG issue and the goal is to save it to a file, saving it using SkiaSharp may fix it.

There may be a problem with GDI+'s implementation of JPEG, I have previously seen such a problem, though not with FlashCap's sample code.