I see. Do you have exactly model name of cpu? 08.09.2016, 13:40, "Simon Brown" <simon.k.br...@gmail.com>: > That's excellent - thank you. I had changed number of threads, but only > after the codec was opened. > > The CPU is a dual core Cortex-A9 running at 950MHz. There is no hardware > coprocessor, so was hoping to eek out what I could from this. > > I know FFMpeg has some Neon options (and the libraries have been built with > HAVE_NEON=1, but does anyone know how much of the H.264 decoder has Neon > code, if any? > > Cheers, > Simon > > On 8 September 2016 at 11:11, Puneet Kapoor <puneet.cse.i...@gmail.com> wrote: >> I had a similar question sometime back. >> Try following this thread: >> https://ffmpeg.org/pipermail/libav-user/2016-July/009365.html see if it >> helps you. >> >> Cheers >> >> On Thu, Sep 8, 2016 at 11:36 AM, Nikita Orlov <nikitos1...@yandex.ru> wrote: >>> Hi! >>> >>> Which cpu do you use? Most probably there is hardware decoder. Current cpu >>> usually can decode 4K@30 >>> some FullHD@30 at least. >>> >>> Another thing, that maybe can suit your case, is to prepare video optimized >>> for decode. >>> Very simple optimization is to use simplest profile - baseline. I believe >>> that there are some other options >>> to increase decoding speed, you have to google them. >>> >>> 08.09.2016, 00:41, "Simon Brown" <simon.k.br...@gmail.com>: >>>> Thank you - I tried that, but got no noticeable difference. >>>> >>>> On 7 September 2016 at 16:59, Kristijonas Malisauskas >>>> <k...@sportcaster.dk> wrote: >>>>> First thing i would suggest doing is setting your AVCodecContext to use >>>>> more threads >>>>> >>>>> for ex: videoCtx->thread_count = 4; >>>>> >>>>> On Wed, Sep 7, 2016 at 3:05 PM, Simon Brown <simon.k.br...@gmail.com> >>>>> wrote: >>>>>> I'm running a decode operation using doc/examples/demuxing_decoding.c >>>>>> I'm running on an Arm A9 with Neon enabled. Sending a 1280x720p stream >>>>>> at 24fps it can only decode about 15fps. Is there any way of speeding >>>>>> up the decode operation? >>>>>> >>>>>> Regards, >>>>>> Simon >>>>>> _______________________________________________ >>>>>> Libav-user mailing list >>>>>> Libav-user@ffmpeg.org >>>>>> http://ffmpeg.org/mailman/listinfo/libav-user >>>>> >>>>> _______________________________________________ >>>>> Libav-user mailing list >>>>> Libav-user@ffmpeg.org >>>>> http://ffmpeg.org/mailman/listinfo/libav-user >>>> , >>>> >>>> _______________________________________________ >>>> Libav-user mailing list >>>> Libav-user@ffmpeg.org >>>> http://ffmpeg.org/mailman/listinfo/libav-user >>> >>> -- >>> Nikita Orlov >>> Skype: nik_stet >>> QQ: 2717846083 >>> >>> _______________________________________________ >>> Libav-user mailing list >>> Libav-user@ffmpeg.org >>> http://ffmpeg.org/mailman/listinfo/libav-user >> >> _______________________________________________ >> Libav-user mailing list >> Libav-user@ffmpeg.org >> http://ffmpeg.org/mailman/listinfo/libav-user > > , > > _______________________________________________ > Libav-user mailing list > Libav-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/libav-user
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