Add support for macOS 10.15.
Add support for Pro Capture Dual SDI 4K Plus.
Add support for NV12 format signals.
Optimize CPU usage.
Fix problem: in some players, the number of audio channels is not detected correctly.
Fix problem: sometimes the quantization range of RGB color is not detected correctly.
For Pro Capture cards with fans, add the function of automatically adjusting fan speed according to the temperature.
1. Support of Pro Capture Dual SDI 4K Plus.