вс, 1 окт. 2023 г., 02:43 Stéphane Archer <archersteph...@gmail.com>:
> Let's say you have a video file encoded with high bitrate with the > ultra-fast preset in H.264 because you couldn't afford CPU at that time. > Now you have a huge file mostly because it was encoded quickly. > > You are now two days later with access to a good CPU and GPU. > > If you re-encode that file to save space then you are going to lose quality > because even AV1 with a high bitrate is lossy (and you want to reduce that > high bitrate) > > Otherwise, you can try transcoding using lossless compression but during my > testing, this is making the file way bigger no matter what I tried. > > So basically, I can lose quality, or keep the big original file... > Do you know a better way? Is there a way to re-encode that inefficiently > encoded file without losing quality and reducing file size? > may be try two-pass encoding? > > Best regards > > Stéphane Archer > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
