[mythtv-users] Flashing line at bottom of HD-PVR recordings

Scott Naef snaef1 at mail.brookdalecc.edu
Tue Jan 15 23:55:37 UTC 2013


I get this also on my recordings from my HDPVR's.   I have a few other 
issues to work on first and it has not bothered me that much yet.  But 
yes, it does happen to me also.

On 1/15/2013 4:24 PM, Dan Wilga wrote:
> On 1/14/13 11:13 AM, Dan Wilga wrote:
>> On 1/14/13 8:55 AM, Ronald Frazier wrote:
>>> On Sat, Jan 12, 2013 at 3:08 PM, Justin Johnson
>>> <justin.johnson3 at gmail.com>  wrote:
>>>> Since upgrading to 0.26 I see a flashing line at the bottom of my HD-PVR
>>>> recordings. It only happens on 1080i channels, which leads me to suspect
>>>> that it is related to the fact that there are really 1088 lines in the
>>>> video.
>>>>
>>>> Anyone have the same experience? Any workarounds or solutions/patches? I
>>>> didn't see anything current in trac.
>>> Adjusting overscan will work, but I certainly wouldn't call that a
>>> solution. Have you tried using a different deinterlacer? Are you using
>>> VDPAU? What if you switch back to CPU deciding (ex: using the High
>>> Quality profile). I'd play around with those and see if any of them
>>> gets rid of it. If so, even if that's not the solution you want, it
>>> might give you a clue where to look (like upgrading your nvidia
>>> drivers or something).
>>>
>> I have also noticed this consistently since upgrading to 0.26. It 
>> happens even to recordings that were made before 0.26, so I know it 
>> is an output problem, not in the files. It happens for both VDPAU 
>> Medium and VDPAU High. I'll try one of the other rendering methods 
>> tonight. IIRC, it happens for all mkv files, regardless of 
>> resolution, and does not happen for other file types. Therefore, I 
>> suspect the embedded ffmpeg code, myself.
>>
>> FYI, I'm using 0.26-fixes commit 28846f from January 3.
> I went through a bunch of permutations last night, and discovered:
> - When the recording was made by the HD-PVR, the flashing line was 
> always present.
> - Display profile did not seem to be a factor. My usual default of 
> VDPAU High Quality did it, as did OpenGL High Quality.
> - Contrary to what I said above, it did NOT do this for all mkv files. 
> Ones that were recorded at 1080i but transcoded down to lower 
> resolutions with Handbrake were fine. I don't have anything recoded 
> with the HD-PVR at resolutions lower than 1080i to test with.
> -- 
> Dan Wilga                                                        "Ook."
>
>
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