On Sunday 28 January 2018 18:38:48 Cecil Westerhof wrote: > So it looks like I should always use superfast. (But probably a good > idea to test it with a few other videos.) > > Anyone an idea what could be happening here?
Some good answers already but something I read while researching similar effects using x265 encoding told me that preset is just a shorthand for a specific set of encoding options, some affect speed, some affect quality. Said combinations are defined by whoever set up the preset keywords and there is no specific relationship between size, speed and the key word chosen because the source material may affect how the pre-selected options work, although in general the fast presets will, in fact, give a faster encoding time. If you really want to optimise sped and quality, you need to manually choose your options to match the source materiel, eg lots of action, cartoon animation, black and white etc. I think there's a way (or some website somewhere) which documents the full command line settings that are enacted when choosing a preset. Good luck! _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".