On Sat, May 02, 2020 at 14:30:26 +0200, Bouke / VideoToolShed wrote: > https://trac.ffmpeg.org/wiki/Encode/H.265 > <https://trac.ffmpeg.org/wiki/Encode/H.265> > > Under the Constant Rate Factor (CRF): > > -Put differently, if you choose ultrafast, the encoding process is going to > run fast, and the file size will be smaller when compared to medium. > > WTF? I would think the output file size will be bigger? (I take it this is > just a stupid mistake…)
Yes, that must be a mistake. > Then, the line continues: > -The visual quality will not be as good. > > Now it gets confusing. This sorta kinda suggests that -crf and -preset are > not to be used together? I believe that is also wrong, at least from x264 experience. If you don't explicitly give either a bitrate or a CRF, the mode will be CRF. They combine just fine: The preset retains the targeted quality (more or less), but compromises conversion speed for bandwidth/size/bitrate. Cheers, Moritz _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
