Dne 13.2.2017 v 23:00 Timo Rothenpieler napsal(a):
It is problem in NVENC.
You create first frame before initialization of NVENC in CUVID, so this
first frame is not accesible to NVENC until
dl_fn->cuda_dl->cuCtxPushCurrent(ctx->cu_context) is called in NVENC.
This trivial patch should fix your problem.
M.
Very interesting. I don't think this patch is the proper fix though.
There never should be an active cuda context when returning from a
function, at least that's the premise under which I wrote all cuda
related functions so far.
This must mean that before, cuvid or something else must somehow have
leaked a bound cuda context to nvenc. So that might need fixing as well.
Thank you very much for finding this!
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Try to look at:
http://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#module
Maybe someone from nvidia will be able to explain it more
M.
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