<div dir="ltr">I just gave the 2019-render branch (devel/2019-render v31-Pre-1095-gc7eabdaf86) a try on one of my frontend machines. The frontend is home-built Apollo Lake Celeron J3455 system running Xubuntu 18.04 with Vaapi version 1.10. The frontend is used almost exclusively for viewing NTSC LiveTV and the output is configured for a 1920x1080@59.94 modeline. The frontend is configured with a VAAPI2 profile with Vaapi acceleration and opengl-hw High quality deinterlacing.<div><br></div><div>Everything works great with the exception of one issue: </div><div>On 1920x1080i channels where deinterlacing is in use, any overlaid info flickers in the overlaid section in the top 1/4 or of the screen (see video here: <a href="https://youtu.be/PXospaUX1lo" target="_blank">https://youtu.be/PXospaUX1lo</a>). The same flickering behavior is also observed if viewing a 1920x1080i@30fps recording so this doesn't appear unique to LiveTV. The overlay flickering is not present in any circumstance when viewing 1280x720@60 content where deinterlacing is not in use. </div><div><br></div><div>To compare, I also tried the render branch on another machine with an Nvidia card (GT 1030 / driver version 390.116). Using VDPAU acceleration and opengl-hw deinterlacing on this frontend, the overlay flickering is not present with either interlaced or progressive content.</div><div><br></div><div>Any hints on why I might be experiencing this with VAAPI acceleration on my Apollo Lake machine?</div><div><br></div><div>Thank you for all of your work on this!</div><div>Tim</div><div><br></div><div><br></div><div>Tim</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Oct 11, 2019 at 6:10 AM Mark Kendall <<a href="mailto:mark.kendall@gmail.com" target="_blank">mark.kendall@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 Mon, 7 Oct 2019 at 11:53, Mike Bibbings <<a href="mailto:mike.bibbings@gmail.com" target="_blank">mike.bibbings@gmail.com</a>> wrote:<br>
<br>
> Mark,<br>
><br>
> Just reporting back.<br>
><br>
> I have had no failures running with the livetv patch over the weekend<br>
> using DVB-T/T2 or DVB-S/S2<br>
><br>
> It looks good for a commit at your leisure.<br>
<br>
Thanks Mike - I've committed a more complete patch - but results<br>
should be the same.<br>
<br>
Regards<br>
Mark<br>
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