Quoting Tomas Härdin (2022-06-14 16:39:00) > Patch 12 in this series is optional since it's just me getting the > speed up on a specific machine > > /Tomas > > From 115aa26c343419e81c1b5ba0bfdb1615cbec27e9 Mon Sep 17 00:00:00 2001 > From: =?UTF-8?q?Tomas=20H=C3=A4rdin?= <g...@haerdin.se> > Date: Fri, 10 Jun 2022 14:10:02 +0200 > Subject: [PATCH 01/13] lavc/jpeg2000dec: Finer granularity threading > > Decoding and dequant is now threaded on codeblock level. > IDWT is threaded on component level. > MCT and write_frame() remain threaded on tile level. > > This brings lossless 4K J2K with -lowres 2 -thread_type slice -threads 96 on > an AMD EPYC 7R32 from 4.8 fps (177% CPU) to 31 fps (1284% CPU).
Any measurable impact on single-threaded or frame-threaded decoding? -- Anton Khirnov _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
