I have written an application that takes in raw yuv420 frames and produces h264 video using libx264. It works great. However, I want to do the encoding on the GPU instead, and I know that FFmpeg supports this via h264_nvenc. I tried this using the FFmpeg application and it also works great.

I don't want to call an external application to do this though. How do I get the C code to use h264_nvenc instead of libx264? I've not seen any code option where I can set the encoder.

Thanks,
Joel
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