<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 9 May 2019 at 19:14, Mike Bibbings <<a href="mailto:mike.bibbings@gmail.com">mike.bibbings@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
<div>On 08/05/2019 13:49, Charlie Myth
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr"><br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, 12 Apr 2019 at
17:59, Will Dormann <<a href="mailto:wdormann@gmail.com" target="_blank">wdormann@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On 4/12/19 11:00 AM,
Mike Bibbings wrote:<br>
> Note that all playback (SD and HD) uses ffmpeg, not
the tegra GPU<br>
<br>
</blockquote>
<div><br>
</div>
<div>Would this be able to do the hardware decoding and
de-interlacing using NVDEC? <a href="https://code.mythtv.org/trac/ticket/13357#no1" target="_blank">https://code.mythtv.org/trac/ticket/13357#no1</a></div>
<div><br>
</div>
<div>Possibly in 30.1?<br>
</div>
<div><br>
</div>
<div>C<br>
</div>
</div>
</div>
</div>
</blockquote>
<p><br>
</p>
<p>I have tried source build of mythtv master, which should have
nvdec support, but ./configure reports "nvdec no", even with
switch --enable nvdec. <br>
</p>
<p>Also a recent NVIDIA post indicates no support with ffmpeg on
jetson nano see
<a href="https://devtalk.nvidia.com/default/topic/1051471/ffmpeg-build-with-nvdec-or-cuvid-for-hw-accelerated-decoding/" target="_blank">https://devtalk.nvidia.com/default/topic/1051471/ffmpeg-build-with-nvdec-or-cuvid-for-hw-accelerated-decoding/</a></p>
<p><br>
</p>
<p>Mike<br>
</p>
</div>
_______________________________________________<br>
mythtv-users mailing list<br>
<a href="mailto:mythtv-users@mythtv.org" target="_blank">mythtv-users@mythtv.org</a><br>
<a href="http://lists.mythtv.org/mailman/listinfo/mythtv-users" rel="noreferrer" target="_blank">http://lists.mythtv.org/mailman/listinfo/mythtv-users</a><br>
<a href="http://wiki.mythtv.org/Mailing_List_etiquette" rel="noreferrer" target="_blank">http://wiki.mythtv.org/Mailing_List_etiquette</a><br>
MythTV Forums: <a href="https://forum.mythtv.org" rel="noreferrer" target="_blank">https://forum.mythtv.org</a><br></blockquote><div><br></div><div>
<div>Hi Mike (et al)</div><div><br></div><div>Old thread I know, but there may have been some progress on this:<br></div><div><br></div><div><a href="https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%2520Linux%2520Driver%2520Package%2520Development%2520Guide%2Fmultimedia.html%23wwpID0E0JB0HA">https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%2520Linux%2520Driver%2520Package%2520Development%2520Guide%2Fmultimedia.html%23wwpID0E0JB0HA</a></div><div>
<h2 id="gmail-wwpID0E0JB0HA" class="gmail-Heading_2">Accelerated Decode with ffmpeg</h2><div class="gmail-WebWorks_MiniTOC"><div class="gmail-WebWorks_MiniTOC_Heading"> </div><dl class="gmail-WebWorks_MiniTOC_List"><dd><div class="gmail-WebWorks_MiniTOC_Entry"><a class="gmail-WebWorks_MiniTOC_Link" href="https://docs.nvidia.com/jetson/l4t/Tegra%20Linux%20Driver%20Package%20Development%20Guide/multimedia.html#wwpID0ERHA">Decode Functional Flow</a></div></dd></dl></div><div id="gmail-wwpID0E0IB0HA" class="gmail-Body_Text">The NVIDIA <span class="gmail-Code_Char">ffmpeg</span> package supports hardware-accelerated decode on Jetson platforms.</div><div id="gmail-wwpID0E0HB0HA" class="gmail-Body_Text">An
application can use accelerated decode to read video files in the
following elementary/container formats and dump them in YUV 420 format:</div><div id="gmail-wwpID0E0GB0HA" class="gmail-List_Bullet"><span class="gmail-WebWorks_Number" style="width:18pt"><span>• </span></span>H.264</div><div id="gmail-wwpID0E0FB0HA" class="gmail-List_Bullet"><span class="gmail-WebWorks_Number" style="width:18pt"><span>• </span></span>H.265</div><div id="gmail-wwpID0E0EB0HA" class="gmail-List_Bullet"><span class="gmail-WebWorks_Number" style="width:18pt"><span>• </span></span>VP8</div><div id="gmail-wwpID0E0DB0HA" class="gmail-List_Bullet"><span class="gmail-WebWorks_Number" style="width:18pt"><span>• </span></span>VP9</div><div id="gmail-wwpID0E0CB0HA" class="gmail-List_Bullet"><span class="gmail-WebWorks_Number" style="width:18pt"><span>• </span></span>MPEG2</div><div id="gmail-wwpID0E0BB0HA" class="gmail-List_Bullet"><span class="gmail-WebWorks_Number" style="width:18pt"><span>• </span></span>MPEG4</div>
</div><div><br></div><div>..although the FAQ seems at odds with this:</div><div><br></div><div><a href="https://forums.developer.nvidia.com/t/jetson-nano-faq/82953">https://forums.developer.nvidia.com/t/jetson-nano-faq/82953</a></div><div>
<p><b>Q: Is hardware acceleration enabled in ffmpeg?</b><br>
A: It is not supported in default releases. We are evaluating to support it in future release.<br>
A community contribution is shared. Please check <a href="https://github.com/jocover/jetson-ffmpeg">https://github.com/jocover/jetson-ffmpeg <span class="gmail-badge gmail-badge-notification gmail-clicks" title="25 clicks">25</span></a></p></div><div><br></div><div><br></div><div>perhaps the github offering will work.<br></div><div><br></div><div>Anyone with a Jetson think it is worth giving it a try?</div><div><br></div><div>Cheers<br></div> <br></div></div></div>