REGISTER_ENCODER(H264_QSV, h264_qsv);
REGISTER_ENCODER(H264_VAAPI, h264_vaapi);
REGISTER_ENCODER(H264_VIDEOTOOLBOX, h264_videotoolbox);
REGISTER_ENCODER(H264_QSV, h264_qsv);
REGISTER_ENCODER(H264_VAAPI, h264_vaapi);
REGISTER_ENCODER(H264_VIDEOTOOLBOX, h264_videotoolbox);