[mythtv] NVidia Pixellation

Peter Bennett pb.mythtv at gmail.com
Mon Jul 30 21:41:00 UTC 2018

On 07/30/2018 04:26 PM, Aman Gupta wrote:
>     Aman, do you have a good connection at Nvidia?  My local ABC station
>     seems to have again started sending streams that show corruption when
>     decoded with MediaCodec (and VDPAU, for that matter), but not when
>     decoded with ffmpeg software.  I have a short sample that I can
>     provide.
> Yes I can forward the bug report and sample if you email them to me. 
> Please test the sample with the latest Exoplayer and make sure it 
> reproduces there so they can investigate easily.
I have a channel that has this problem. The local NBC station changed 
hands at the beginning of 2017 and since then the stream gets periodic 
pixellation but only on NVidia. The pixellations are at exactly the same 
places on Shield as with VDPAU on my low-end, $20 NVidia cards. 
Apparently NVidia are using the same (faulty) software in the Shield as 
they have used for years in the low-end GEForce 210.

These recordings play perfectly with software decoding, VAAPI, and 
*_Raspberry Pi OpenMAX_*. ($30 Raspberry Pi works better than Shield?!?).

If you need a sample I can also provide one.

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