[FFmpeg-user] error "Failed to query nvenc max version", how to solve this bug?
will
graperio at 163.com
Sat Jul 29 20:55:26 EEST 2023
My GPU is NVIDIA A16, a GPU instance provided by Alibaba Cloud server, which is specially used to do video transcoding.<br/>I see someone here with a similar problem "https://forums.developer.nvidia.com/t/error-failed-to-query-nvenc-max-version/75911"<br/>But I can't understand how he solved it. <br/>I have the file libnvidia-encode.so
At 2023-07-30 00:19:52, "Dennis Mungai" <dmngaie at gmail.com> wrote:
>On Sat, 29 Jul 2023 at 17:12, will <graperio at 163.com> wrote:
>
>> The error "Failed to query nvenc max version" occurs when using FFmpeg
>> with NVIDIA GPU acceleration (hevc_nvenc) on Linux.
>>
>> Do you know how to solve this bug? Thank you very much.
>>
>> The following code is the FFmpeg code I entered, along with the output
>> content.
>> ffmpeg -ss 10:00 -i /www/wwwroot/pyffmpeg/videos/0/011.mp4 -t 20 -r 30
>> -b:v 4M -an -vcodec hevc_nvenc -y /www/wwwroot/pyffmpeg/videos/post/999.mp4
>> ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers
>> built with gcc 8 (GCC)
>> configuration: --extra-cflags='-I/usr/local/cuda/include -fPIC '
>> --extra-ldflags='-L/usr/local/cuda/lib64 -ldl ' --pkg-config-flags=--static
>> --enable-shared --enable-gpl --enable-cuvid --enable-nvenc --enable-nonfree
>> --nvcc='nvcc=/usr/local/cuda-12.2/bin/nvcc'
>> WARNING: library configuration mismatch
>> avutil configuration:
>> --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC '
>> --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl '
>> --pkg-config-flags=--static --enable-shared --enable-gpl
>> --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree
>> --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
>> avcodec configuration:
>> --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC '
>> --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl '
>> --pkg-config-flags=--static --enable-shared --enable-gpl
>> --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree
>> --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
>> avformat configuration:
>> --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC '
>> --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl '
>> --pkg-config-flags=--static --enable-shared --enable-gpl
>> --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree
>> --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
>> avdevice configuration:
>> --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC '
>> --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl '
>> --pkg-config-flags=--static --enable-shared --enable-gpl
>> --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree
>> --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
>> avfilter configuration:
>> --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC '
>> --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl '
>> --pkg-config-flags=--static --enable-shared --enable-gpl
>> --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree
>> --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
>> swscale configuration:
>> --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC '
>> --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl '
>> --pkg-config-flags=--static --enable-shared --enable-gpl
>> --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree
>> --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
>> swresample configuration:
>> --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC '
>> --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl '
>> --pkg-config-flags=--static --enable-shared --enable-gpl
>> --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree
>> --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
>> postproc configuration:
>> --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC '
>> --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl '
>> --pkg-config-flags=--static --enable-shared --enable-gpl
>> --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree
>> --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
>> libavutil 58. 2.100 / 58. 2.100
>> libavcodec 60. 3.100 / 60. 3.100
>> libavformat 60. 3.100 / 60. 3.100
>> libavdevice 60. 1.100 / 60. 1.100
>> libavfilter 9. 3.100 / 9. 3.100
>> libswscale 7. 1.100 / 7. 1.100
>> libswresample 4. 10.100 / 4. 10.100
>> libpostproc 57. 1.100 / 57. 1.100
>> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
>> '/www/wwwroot/pyffmpeg/videos/0/011.mp4':
>> Metadata:
>> major_brand : isom
>> minor_version : 512
>> compatible_brands: isomiso2avc1mp41
>> encoder : Lavf59.6.100
>> Duration: 00:17:48.83, start: 0.000000, bitrate: 4617 kb/s
>> Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661),
>> yuv420p(tv, smpte170m/bt470bg/bt709, progressive), 1920x1080 [SAR 1:1 DAR
>> 16:9], 4481 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
>> Metadata:
>> handler_name : ISO Media file produced by Google Inc.
>> vendor_id : [0][0][0][0]
>> Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
>> stereo, fltp, 127 kb/s (default)
>> Metadata:
>> handler_name : ISO Media file produced by Google Inc.
>> vendor_id : [0][0][0][0]
>> Stream mapping:
>> Stream #0:0 -> #0:0 (h264 (native) -> hevc (hevc_nvenc))
>> Press [q] to stop, [?] for help
>> [hevc_nvenc @ 0x2a577790] Failed to query nvenc max version: unknown error
>> (-756041696): (no details)
>> Segmentation faul
>>
>> I have installed FFmpeg, NVIDIA GPU drivers, and SDK. It works fine
>> without using GPU acceleration, but it throws an error when using GPU
>> acceleration.
>>
>
>
>I suspect you're running this on an NVIDIA GRID vGPU solution.
>I've added Philip Langdale and Timo to this thread for guidance on this
>because to my knowledge (and I stand corrected if I'm wrong), FFmpeg's
>NVENC runtime does not initialize on NVIDIA's GRID vGPU solution. Only the
>CUDA and D3D11VA backends are supported for context creation, see
>https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/nvenc.c#L77
>
>Perhaps Philip or Timo can clarify on that further.
>
>You may need to tear down the vGPU stuff you're running and run FFmpeg
>directly on baremetal for that GPU.
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