Quoting Niklas Haas (2024-10-20 22:05:23) > From: Niklas Haas <g...@haasn.dev> > > This interface has been designed from the ground up to serve as a new > framework for dispatching various scaling operations at a high level. This > will eventually replace the old ad-hoc system of using cascaded contexts, > as well as allowing us to plug in more dynamic scaling passes requiring > intermediate steps, such as colorspace conversions, etc. > > The starter implementation merely piggybacks off the existing sws_init() and > sws_scale(), functions, though it does bring the immediate improvement of > splitting up cascaded functions and pre/post conversion functions into > separate filter passes, which allows them to e.g. be executed in parallel > even when the main scaler is required to be single threaded. Additionally, > a dedicated (multi-threaded) noop memcpy pass substantially improves > throughput of that fast path. > > Follow-up commits will eventually expand this to move all of the scaling > decision logic into the graph init function, and also eliminate some of the > current special cases.
Does this (or can it) support copy-free passthrough of individual planes, for cases like YUV420P<->NV12? -- 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".
