Fixes for TImageRenderer

[rmesch]

Hi Tony,

Thanks for fixing the SinkWriterStatistics. It helped me to find the real cause of all timing- and video-stuttering issues. It wasn't an overflowing buffer, but me using global variables for the media-buffers passed to the samples. The idea was to reuse them for repeated encoding, not a very good one, because this doesn't seem to be threadsafe. So I changed all of those to local variables, and all problems are gone. No more need for sleeps all over the code or for changing the timer-resolution.

While at it, I also looked at the audio-bugs, and I think I fixed them all. See ChangesRS.txt for more.

Have a nice weekend
Example3.zip
,
Renate

[FactoryXCode]

Hi Renate,

Good job!
Using global vars in threads don't work indeed, I made the same mistake once when writing the LoopbackCapture sample.

SY, Tony.

[rmesch]

Thanks for the update!

[FactoryXCode]

Hi Renate,
Try this one: https://github.com/FactoryXCode/MfPack/tree/Master/MfPack/Samples/MfCaptureVideoFromGPU%20II
I'm working on a followup project that uses your project for desktop caption.
Interested?

Greetings, Tony.

[rmesch]

Hi Tony,
Sure I'm interested, provided I'll be able to understand the prerequisites. Right now I'm a bit frustrated with my project, because Win 11 introduced several undesired behaviors. For example it won't let me switch to software encoding for H265, and I can't figure out what causes it.

[FactoryXCode]

Sorry for this late answer.
First Happy new year and the best whishes for you and family.
About H265: The latest updates for Win 11 have dropped support for H-265, Dolby AC3 and some other codecs, due to licensing and financial reasons.
I found that out when building the new project MfCaptureVideoFromGPU II
However, you can download the codec from Microsoft Store for 99 cents. Maybe NVidea NV1 is a good alternative (has Media Foundation support)? HEVC is not that successfull anyway.