printf("fps: %d\n", 1000000/head.dwMicroSecPerFrame);
printf("frames: %d\n", head.dwTotalFrames);
printf("streams: %d\n", head.dwStreams);
printf("fps: %d\n", 1000000/head.dwMicroSecPerFrame);
printf("frames: %d\n", head.dwTotalFrames);
printf("streams: %d\n", head.dwStreams);