VLC播放器-打开VDPAU后端libvdpau_nvidia.so失败

Question

我一直在努力解决这个问题与VLC没有使用我的1030's硬件解码与VLC使用VDPAU。希望这里有人能帮我解决这个问题。H264和H265也有同样的问题。VLC回到CPU渲染还不错，但我需要弄清楚为什么它不能加载我的Nvidia GT 1030的VDPAU硬件解码。

一些信息要开始..。

Distributor ID: Ubuntu
Description:    Ubuntu 18.04.1 LTS
Release:    18.04
Codename:   bionic

4.15.0-39-generic
      
nvidia-smi   
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 390.77                 Driver Version: 390.77                    |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GT 1030     Off  | 00000000:01:00.0  On |                  N/A |
| 35%   28C    P8    N/A /  30W |    116MiB /  1996MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|    0       943      G   /usr/lib/xorg/Xorg                            62MiB |
|    0      1090      G   /usr/bin/gnome-shell                          52MiB |
+-----------------------------------------------------------------------------+

Information string: NVIDIA VDPAU Driver Shared Library  390.77  Tue Jul 10 22:09:49 PDT 2018
MPEG1                           0 65536  4096  4096
MPEG2_SIMPLE                    3 65536  4096  4096
MPEG2_MAIN                      3 65536  4096  4096
MPEG4_PART2_SP                  3  8192  2048  2048
MPEG4_PART2_ASP                 5  8192  2048  2048
HEVC_MAIN                      153 262144  8192  8192
HEVC_MAIN_10                   --- not supported ---
HEVC_MAIN_STILL                --- not supported ---
HEVC_MAIN_12                   --- not supported ---
HEVC_MAIN_444                  --- not supported ---

/usr/lib/i386-linux-gnu/vdpau/libvdpau_nvidia.so
/usr/lib/i386-linux-gnu/vdpau/libvdpau_nvidia.so.1
/usr/lib/i386-linux-gnu/vdpau/libvdpau_nvidia.so.390.77
/usr/lib/x86_64-linux-gnu/vdpau/libvdpau_nvidia.so
/usr/lib/x86_64-linux-gnu/vdpau/libvdpau_nvidia.so.1
/usr/lib/x86_64-linux-gnu/vdpau/libvdpau_nvidia.so.390.77

VLC media player 3.0.4 Vetinari (revision 3.0.4-0-gf615db6)
[000000000210d3b0] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
Qt: Session management error: None of the authentication protocols specified are supported
Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory
Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory
[00007f6c48c06a30] main decoder error: buffer deadlock prevented

编辑:问题是如何使VDPAU硬件解码工作，而不是VA.无论哪种方式，即使在遵循VA的指令之后，无论VLC被设置为使用VA还是VDPAU，仍然无法使硬件解码正常工作。错误可以在OP的注释中找到。

错误日志：

VAProfileMPEG2Simple :  VAEntrypointVLD VAProfileMPEG2Main :    VAEntrypointVLD VAProfileMPEG4Simple :  VAEntrypointVLD VAProfileMPEG4AdvancedSimple :  VAEntrypointVLD <unknown profile> : VAEntrypointVLD VAProfileH264Main : VAEntrypointVLD VAProfileH264High : VAEntrypointVLD VAProfileVC1Simple :    VAEntrypointVLD VAProfileVC1Main : VAEntrypointVLD VAProfileVC1Advanced :   VAEntrypointVLD

Qt: Session management error: None of the authentication protocols specified are supported libva info: VA-API version 0.39.0 libva info: va_getDriverName() returns -1 libva error: va_getDriverName() failed with unknown libva error,driver_name=(null)

[00007f55080a34c0] vaapi_drm generic error: vaInitialize: unknown libva error libva info: VA-API version 0.39.0 libva info: va_getDriverName() returns -1 libva error: va_getDriverName() failed with unknown libva error,driver_name=(null)

[00007fae100a37a0] vaapi_drm generic error: vaInitialize: unknown libva error Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory [00007fae1cc0c400] main decoder error: buffer deadlock prevented QObject::~QObject: Timers cannot be stopped from another thread

Answer 1

本例中的问题是VLC播放器的snap安装。

用以下方式删除snap安装：

sudo snap remove vlc

后续行动如下：

sudo apt-get remove --purge *vlc*

用apt安装VLC：

sudo apt-get install vlc

关于视频输出的openGL呈现的另一个问题，我删除/清除了390.77驱动程序，并添加了ppa:graphics-driver并安装了415.18。

修复后的良好日志历史示例：

VLC media player 3.0.4 Vetinari (revision 3.0.4-0-gf615db6332)[000055963f262570] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface. [00007fb868c09430] avcodec decoder: Using NVIDIA VDPAU Driver Shared Library 415.18 Thu Nov 15 21:34:27 CST 2018 for hardware decoding 
[00007fb868cc1d60] avcodec decoder: Using NVIDIA VDPAU Driver Shared Library 415.18 Thu Nov 15 21:34:27 CST 2018 for hardware decoding

Answer 2

或者，如果您不需要nVidia驱动程序，您可以进入VLC设置并在视频选项卡中选择另一个输出。