[FFmpeg-user] QUESTION ABOUT VIDEO CODECS : LIBX264 vs LIBX265

[Ferdi Scholten]

Hi all,
> I have a question about re-encoding a source video having libx264 video codec.
>
> Is there any advantage(s) to re-encode with the libx265, which is supposed to give better result than libx264 ?
>
> In other words, re-encoding with the x265 codec for the final video : can it improve the final video quality, compared to the source video, when the source video is encoded with x264 ?
>
> Thanks for your answers.
>
> Regards,
> HA
>
There is absolutely no advantage other than probably getting a smaller 
filesize, but quality will degrade per definition as both H264 and H265 
are lossy codecs.