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With the above parameters, the CPU usage is still very high. The decoding does not use hardware decoding. It should be that FMPEG does not open hardware decoding. Can you open FMPEG hardware decompression?

I looked at the Windows Explorer, and the program did not use the GPU for decoding, so the CPU usage was high.

More than 4 link CPU are occupied

I opened the 9rtsp video at the same time, and the CPU occupies my computer. I optimized it according to my own method, but it was still full. However, the CPU usage of VLC Midea playback is very low.

I downloaded the beta version, but it doesn't seem to support H265 decoding.