[mythtv-users] Mythtv v35 fails decode with Nvidia NVDEC

[Ryan Patterson]

On Thu, Feb 13, 2025 at 9:16 PM James Abernathy <jfabernathy at gmail.com>
wrote:

> On Thu, Feb 13, 2025 at 9:04 PM James Abernathy <jfabernathy at gmail.com>
> wrote:
>
>> On Thu, Feb 13, 2025 at 8:54 PM James Abernathy <jfabernathy at gmail.com>
>> wrote:
>>
>>> On Thu, Feb 13, 2025 at 8:27 PM Ryan Patterson <ryan.goat at gmail.com>
>>> wrote:
>>>
>>>> I just upgraded to fixes/35 and it is not working correctly.  Nothing
>>>> will play when set to use the Nvidia NVDEC video decoder.
>>>>
>>>> The error displayed says, "Video Frame Buffering Failed Too Many Times"
>>>>
>>>> I switched to VDPAU decoding and playback works.  But I need NVDEC for
>>>> 4K content.
>>>>
>>>> _____________
>>>> Ryan Patterson
>>>> May the wings of liberty never lose a feather.
>>>>
>>>>
>>> What are you seeing? Any log errors?  I have a laptop with hybrid GFX.
>>> Nvidia and Intel, so I can launch mythfrontend with pure Nvidia or pure
>>> Intel. Since I've been told that using OpenGL only works best with the
>>> current software and average CPU.  That even applies to RPI 4. I'm on v35
>>> on everything so I can test it.
>>>
>>> Jim A
>>>
>>
>> I did a quick test on my laptop and launched mythfrontend with dedicated
>> GPU option. NVDEC would not even play for me. I switched to OpenGL High
>> Quality and it played perfectly. Of course my laptop is pretty good. Intel©
>> Core™ i7-10750H CPU @ 2.60GHz × 6.
>>
>> Jim A
>>
>>
> I switched my laptop to Nvidia GPU only and rebooted. I got the same error
> as you. However, using OpenGL High Quality was a perfect picture on the
> Nvidia..
>
> Jim A
>

Thanks for confirming you see the same issue.  Yes, other decoders work
(VDPAU, FFMPEG, etc.).  But my CPU is not powerful enough for h.265 HEVC 4K
decode.  That is why I need Nvidia NVDEC.  Hopefully the issue is fixed
soon.

-Ryan
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