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Old 9th September 2019, 12:56   #1684  |  Link
sneaker_ger
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Join Date: Dec 2002
Posts: 5,565
To do it "right" you would need to check for compatible hardware and its features. Features differ not only by hardware but also by codec. (Not that I suggest it must be done "right". Some basic integration with letting the user handle the rest is fine.)
https://github.com/rigaya/NVEnc/blob...--check-device
https://github.com/rigaya/NVEnc/blob...--check-hw-int
https://github.com/rigaya/NVEnc/blob...k-features-int

For me:
Code:
nvencc64 --check-device
DeviceId #0: GeForce GTX 1660 Ti

nvencc64 --check-hw
NVEncC (x64) 4.45 (r1169) by rigaya, Aug 19 2019 11:47:02 (VC 1916/Win/avx2)
  [NVENC API v9.0, CUDA 10.1]
 reader: raw, avi, avs, vpy, avhw [H.264/AVC, H.265/HEVC, MPEG2, VP8, VP9, VC-1,
 MPEG1, MPEG4]
Loaded nvEncodeAPI64.dll.
InitCuda: device #0.

Checking Environment Info...
NVEncC (x64) 4.45 (r1169) by rigaya, Aug 19 2019 11:47:02 (VC 1916/Win/avx2)
OS Version     Windows 7 x64 (7601)
CPU            Intel Core i5-2500K @ 3.30GHz [TB: 3.70GHz] (4C/4T)
GPU            #0: GeForce GTX 1660 Ti (431.60)
NVENC / CUDA   NVENC API 9.0, CUDA 10.1, schedule mode: auto
cuInit: Success.
cuDeviceGetCount: Success.
cuDeviceGet: ID:0.
cuDeviceComputeCapability: Success: 7.5.
NVENC capabilities: OK.
using cuda schedule mode: auto.
cuCtxCreate: Success.
cuCtxPopCurrent: Success.
cuvidInit: Success.
cuvidCtxLockCreate: Success.
InitCuda: Success.
nvEncodeAPICreateInstance(APIVer=0x70020009): Success.
NvEncOpenEncodeSessionEx(device_type=NV_ENC_DEVICE_TYPE_CUDA): Success.
nvEncDestroyEncoder: success.
Closing perf monitor...
Avaliable Codec(s)
H.264/AVC
H.265/HEVC

nvencc64 --check-features
NVEncC (x64) 4.45 (r1169) by rigaya, Aug 19 2019 11:47:02 (VC 1916/Win/avx2)
  [NVENC API v9.0, CUDA 10.1]
 reader: raw, avi, avs, vpy, avhw [H.264/AVC, H.265/HEVC, MPEG2, VP8, VP9, VC-1,
 MPEG1, MPEG4]

Environment Info
OS : Windows 7 x64 (7601)
CPU: Intel Core i5-2500K @ 3.30GHz [TB: 3.70GHz] (4C/4T)
RAM: Used 4099 MB, Total 16337 MB
GPU: #0: GeForce GTX 1660 Ti (1536 cores, 1875 MHz)[PCIe2x16][431.60]

List of available features.
Codec: H.264/AVC
Max Bframes               4
B Ref Mode                yes
RC Modes                  63
Field Encoding            no
MonoChrome                no
FMO                       no
Quater-Pel MV             yes
B Direct Mode             yes
CABAC                     yes
Adaptive Transform        yes
Max Temporal Layers       0
Hierarchial P Frames      no
Hierarchial B Frames      no
Max Level                 51
Min Level                 1
4:4:4                     yes
Max Width                 4096
Max Height                4096
Dynamic Resolution Change yes
Dynamic Bitrate Change    yes
Forced constant QP        yes
Dynamic RC Mode Change    no
Subframe Readback         yes
Constrained Encoding      yes
Intra Refresh             yes
Custom VBV Bufsize        yes
Dynamic Slice Mode        yes
Ref Pic Invalidiation     yes
PreProcess                no
Async Encoding            yes
Max MBs                   65536
Lossless                  yes
SAO                       no
Me Only Mode              yes
Lookahead                 yes
AQ (temporal)             yes
Weighted Prediction       yes
Max LTR Frames            8
10bit depth               no

Codec: H.265/HEVC
Max Bframes               5
B Ref Mode                yes
RC Modes                  63
Field Encoding            no
MonoChrome                no
Quater-Pel MV             yes
B Direct Mode             no
Max Temporal Layers       0
Hierarchial P Frames      no
Hierarchial B Frames      no
Max Level                 62
Min Level                 1
4:4:4                     yes
Max Width                 8192
Max Height                8192
Dynamic Resolution Change yes
Dynamic Bitrate Change    yes
Forced constant QP        yes
Dynamic RC Mode Change    no
Subframe Readback         yes
Constrained Encoding      no
Intra Refresh             yes
Custom VBV Bufsize        yes
Dynamic Slice Mode        yes
Ref Pic Invalidiation     yes
PreProcess                no
Async Encoding            yes
Max MBs                   262144
Lossless                  yes
SAO                       yes
Me Only Mode              yes
Lookahead                 yes
AQ (temporal)             yes
Weighted Prediction       yes
Max LTR Frames            7
10bit depth               yes
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