11/7/2023 0 Comments Streamlabs obs hardware nvenc newI substract the frame numbers of the two high motion png's (2513-2483=30) and get the offset of the encoded video to the reference video. For example, in the reference video the frame number of the high motion png is 2513, and 2483 in the encoded video. Then I searched for these frames in the encoded video and got the frame numbers. I do this to synchronize the reference video to the encoded video: I picked 2 frames from the reference video (the high motion and low motion png). But I synchronize both, so the psnr comparison is really comparing the same frames. The encoded video is never synchronized to the original video, there are always a few junk frames at the start, or frames lost at the start. It's always the same frame in all videos, so the values are comparable. Why it is not exactly sorted in ascended order of video_avg_mse, I will tell later - the humanly perceived quality may differ from that value.The columns mse_low contains the mse of a hand-picked frame with low motion, and the column mse_high contains the mse of a hand-picked frame from a high-motion sequence. The lower the mse, the better the quality. The important column that tells about the quality is video_avg_mse, which contains the average mse (mean square error) of all frames compared to the lossless reference video all the videos were created from. I plan to post about that research some days later, but here is a preliminary extract of the bitrate 2500 videos. If you ask for proof, I did extensive and automated analysis of the different encoders and settings to answer for myself the same question the OP asked. Quickync, on the other hand, is definitely worse than x264 in high motion scenes. x264 is only better if you use the more demanding preset "faster" or an even more demanding preset. For 2500, it gives in fact even better quality than x264 in OBS default configuration of preset "veryfast". You can absolutely use nvenc as streaming encoder.
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