[FFmpeg-user] Failed creating CUDA context for NVENC

[Dennis Mungai]

You mentioned 30 streams. And more cause this to "fail".

Perhaps the Quadro line has a maximum simultaneous encoder limit of 30,
similar to the GeForce's limit of 2?

On Wed, Jul 18, 2018, 19:28 Yugandhar Veeramachaneni <hello at yugandhar.me>
wrote:

> Hello everyone,
>
> I'm currently using an NVIDIA Quadro P4000 GPU to transcode multicast UDP
> streams to RTMP streams. I have quite about 30 streams running in parallel
> on this GPU and I have no problems so far. I tried adding more today and
> many of them are failing with this error.
>
> [h264_nvenc @ 0x55ef24458040] Loaded Nvenc version 8.1
> [h264_nvenc @ 0x55ef24458040] Nvenc initialized successfully
> [h264_nvenc @ 0x55ef24458040] 1 CUDA capable devices found
> [h264_nvenc @ 0x55ef24458040] [ GPU #0 - < Quadro P4000 > has Compute SM
> 6.1 ]
> [h264_nvenc @ 0x55ef24458040] Failed creating CUDA context for NVENC: 0x2
> [h264_nvenc @ 0x55ef24458040] No NVENC capable devices found
> [h264_nvenc @ 0x55ef24458040] Nvenc unloaded
>
> Full log is pasted at
> https://gist.github.com/yugandhar91/47a1c30482d1e89a47f7b6fb6dd420ca
>
> Can you please point me to my mistake?
>
> Thanks,
>
> Yugandhar
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