[Libav-user] Speeding up H264 decoding

[Puneet Kapoor]

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 <nikitos1550 at yandex.ru> wrote:

> Hi!
>
> Which cpu do you use? Most probably there is hardware decoder. Current cpu
> usually can decode 4K at 30
> some FullHD at 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.brown at gmail.com>:
>
> Thank you - I tried that, but got no noticeable difference.
>
> On 7 September 2016 at 16:59, Kristijonas Malisauskas <km at 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.brown at 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
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>
> --
> Nikita Orlov
> Skype: nik_stet
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>
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