<div dir="ltr">That's excellent - thank you. I had changed number of threads, but only after the codec was opened.<div><br></div><div>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. </div><div><br></div><div>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?</div><div><br></div><div>Cheers,</div><div>Simon</div></div><div class="gmail_extra"><br><div class="gmail_quote">On 8 September 2016 at 11:11, Puneet Kapoor <span dir="ltr"><<a href="mailto:puneet.cse.iitd@gmail.com" target="_blank">puneet.cse.iitd@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>I had a similar question sometime back. </div><div>Try following this thread: <a href="https://ffmpeg.org/pipermail/libav-user/2016-July/009365.html" target="_blank">https://ffmpeg.org/<wbr>pipermail/libav-user/2016-<wbr>July/009365.html</a> see if it helps you.<br></div><div><br></div><div>Cheers</div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Sep 8, 2016 at 11:36 AM, Nikita Orlov <span dir="ltr"><<a href="mailto:nikitos1550@yandex.ru" target="_blank">nikitos1550@yandex.ru</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>Hi!</div><div> </div><div>Which cpu do you use? Most probably there is hardware decoder. Current cpu usually can decode <a>4K@30</a></div><div>some <a href="mailto:FullHD@30" target="_blank">FullHD@30</a> at least.</div><div> </div><div>Another thing, that maybe can suit your case, is to prepare video optimized for decode.</div><div>Very simple optimization is to use simplest profile - baseline. I believe that there are some other options</div><div>to increase decoding speed, you have to google them.</div><div> </div><div>08.09.2016, 00:41, "Simon Brown" <<a href="mailto:simon.k.brown@gmail.com" target="_blank">simon.k.brown@gmail.com</a>>:</div><blockquote type="cite"><div><div><div>Thank you - I tried that, but got no noticeable difference.</div><div><br><div>On 7 September 2016 at 16:59, Kristijonas Malisauskas <span><<a href="mailto:km@sportcaster.dk" target="_blank">km@sportcaster.dk</a>></span> wrote:<br><blockquote style="margin:0 0 0 0.8ex;border-left:1px #ccc solid;padding-left:1ex"><div>First thing i would suggest doing is setting your AVCodecContext to use more threads<br><br>for ex: videoCtx->thread_count = 4;</div><div><br><div><div><div>On Wed, Sep 7, 2016 at 3:05 PM, Simon Brown <span><<a href="mailto:simon.k.brown@gmail.com" target="_blank">simon.k.brown@gmail.com</a>></span> wrote:</div></div><blockquote style="margin:0 0 0 0.8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div>I'm running a decode operation using doc/examples/demuxing_decoding<wbr>.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?<div> </div><div>Regards,<br>Simon</div></div></div></div>______________________________<wbr>_________________<br> Libav-user mailing list<br> <a href="mailto:Libav-user@ffmpeg.org" target="_blank">Libav-user@ffmpeg.org</a><br> <a href="http://ffmpeg.org/mailman/listinfo/libav-user" target="_blank">http://ffmpeg.org/mailman/list<wbr>info/libav-user</a><br> </blockquote></div></div><br>______________________________<wbr>_________________<br> Libav-user mailing list<br> <a href="mailto:Libav-user@ffmpeg.org" target="_blank">Libav-user@ffmpeg.org</a><br> <a href="http://ffmpeg.org/mailman/listinfo/libav-user" target="_blank">http://ffmpeg.org/mailman/list<wbr>info/libav-user</a><br> </blockquote></div></div></div></div>,<span><p>______________________________<wbr>_________________<br>Libav-user mailing list<br><a href="mailto:Libav-user@ffmpeg.org" target="_blank">Libav-user@ffmpeg.org</a><br><a href="http://ffmpeg.org/mailman/listinfo/libav-user" target="_blank">http://ffmpeg.org/mailman/list<wbr>info/libav-user</a></p></span></blockquote><span><font color="#888888"><div> </div><div> </div><div>-- </div><div>Nikita Orlov</div><div>Skype: nik_stet</div><div>QQ: 2717846083</div><div> </div></font></span><br>______________________________<wbr>_________________<br>
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