[FFmpeg-user] SLOWNESS WITH LIBX265 CODEC

Reindl Harald h.reindl at thelounge.net
Wed Feb 28 12:49:24 EET 2024



Am 28.02.24 um 11:03 schrieb Hervé ANSELME:
> I have a question about libx265 codec I use to re-encode video ; by the way I use the 6.1 release of ffmpeg, running on Windows 11 Family OS.
> 
> The output file ( re-encoded film ) created in MP4 format has a quite good audio/video quality ; but the process took quite a long time to execute : for a source film which length (or movie duration) is 1 h 32 min, the re-encoding process took 1 h 12 min.

H265 is terrible slow compared to H264 especially on older hardware


More information about the ffmpeg-user mailing list