I am using IMFTransform to decode H264 to NV12.

I have feed many data transform>ProcessInput and it returns ok.
and I read output transform->ProcessOutput and it returns ok too.

but in one or two minutes later (the ProcessInput and ProcessOutput execute many times since I do not set sleep).
it do not work.

the program run here and does not run anymore.

I have logged the info.like this:

printf("begin inn");
transform->ProcessInput(0,sample,0);
printf("end inn");

and

printf("begin outputn");
transform->ProcessOutput(0,1,&outputDataBuffer,&status);
printf("end outputn");

it only output :begin in and begin output.
like the program suspended(autually not). it is running the code transform->ProcessOutput(0,1,&outputDataBuffer,&status); and never returned.

there is no value returned.

is it the system memory is too low? but I open Task Manager and it shows I only use 60mb memory.