[FFmpeg-devel] [PATCH 1/2] Audio Video Filtering using threads & semaphores

Roger Pack rogerdpack2 at gmail.com
Mon Jul 16 01:54:00 CEST 2012

> The Audio/video decoded output pass through filter graph before proceeding to their respective encoders.
> Since filters operates on raw input/output , filtering is computationally expensive.
> And if we have multistep transcoding the filtering happens sequentially for all the steps , thereby decreasing the overall transcode performance.
> So if we do filtering using threads for each step, thereby parallelizing the filtering for all the steps and increase the transcoder performance.

I guess/assume this is similar to this fork of AviSynth?
http://avisynth.org/mediawiki/MT SetMTMode method?


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