It is different streams (seperate video files). Thats the funny thing. 2016-06-03 14:22 GMT+02:00 Karel Vorechovsky <[email protected]>:
> "threaded video reader to spread the decode workload on some more cores > and gain some speed" > > Decoding of the same stream must happen within one codec context. If you > want speedup, read and buffer packets in one thread and do decoding in > another. If that's not enough, look for faster decoder. > > Karel > > > Dne 3.6.2016 v 14:09 Jesper Taxbøl napsal(a): > >> Hi Guys, >> >> I am working on a threaded video reader to spread the decode workload on >> some more cores and gain some speed. My source is included below: >> >> The thing is that I dont see a time improvement when starting two >> processes instead of one. On a 80mb mp4 file it takes 6 seconds to decode >> the video, while doing two in parallel takes 12 seconds. I can see that two >> cores's are used 100 percent. Im on a fast SSD disk so I dont think im IO >> limited. >> >> What could be the case. Is it the same decoder taht is doing all the >> work? Do I perhaps need to instantiate a context or something? >> >> kind regards >> >> -- >> Jesper Taxbøl >> >> _______________________________________________ >> Libav-user mailing list >> [email protected] >> http://ffmpeg.org/mailman/listinfo/libav-user >> > > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user > -- Jesper Taxbøl +45 61627501
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