FFMpeg producer parameters support?

General
4

it’s me again,

I just tried to enable Nvdec for decoding, but no lock, any one have some ideas?

        FF(av_dict_set(&options, "hwaccel", "cuvid", 0)); // HTTP referer header
        FF(av_dict_set(&options, "codec:v", "h264_cuvid", 0)); // HTTP referer header