我在gstreamer-1.0中遇到了v4l2src的问题，但在gstreamer-0.10中似乎有。我在网上搜索了一下，但没有一个建议能让它有什么不同。我在下面列出了一些结果。有什么其他方法可以尝试吗？
更新。@alper-kucukkomurler是正确的。我已经安装了 anaconda，并且 which gst-inspect-1.0 正在返回 ~/anaconda2/bin. 从我的路径中删除Anaconda确实解决了这个问题。但是，如果可能的话，我更希望能有一个解决方案，让Anaconda留在路径中。有什么方法可以解决这个问题吗？(我确实在 anaconda 中安装了 gstreamer 和 gst-plugins-base 包)。
更新2: 来自另一个论坛的提示https:/forum.openframeworks.ccterror-ofgstutils-error-getting-device-data-no-element-v4l2src269086。
指着这个职位GStreamer插件搜索路径？
讨论GST_PLUGIN_PATH。其实我没有这样一个env变量。但这是一个额外的信息点。
$ sudo apt-get install gstreamer1.0-plugins-good
Reading package lists... Done
Building dependency tree
Reading state information... Done
gstreamer1.0-plugins-good is already the newest version (1.8.3-1ubuntu0.4).
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
# (I've tried --reinstall too)
$ locate libgstvideo4linux2.so
/usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstvideo4linux2.so
/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideo4linux2.so
$ gst-inspect-1.0 -b
Blacklisted files:
Total count: 0 blacklisted files
$ gst-inspect-0.10 -b
Blacklisted files:
Total count: 0 blacklisted files
$ gst-launch-1.0 v4l2src
ERROR: pipeline could not be constructed: no element "v4l2src".
$ gst-launch-0.10 v4l2src
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal data flow error.
Additional debug info:
gstbasesrc.c(2625): gst_base_src_loop (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
streaming task paused, reason not-linked (-1)
Execution ended after 2089256849 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...
$ gst-inspect-1.0 v4l2src
No such element or plugin 'v4l2src'
$ gst-inspect-0.10 v4l2src
Factory Details:
Long name: Video (video4linux2) Source
Class: Source/Video
Description: Reads frames from a Video4Linux2 device
Author(s): Edgard Lima <[email protected]>, Stefan Kost <[email protected]>
Rank: primary (256)
Plugin Details:
Name: video4linux2
Description: elements for Video 4 Linux
Filename: /usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstvideo4linux2.so
Version: 0.10.31
License: LGPL
Source module: gst-plugins-good
Source release date: 2012-02-20
Binary package: GStreamer Good Plugins (Ubuntu)
Origin URL: https://launchpad.net/distros/ubuntu/+source/gst-plugins-good0.10
...
...
$ uname -a
Linux MSA-BLADE-UBUNTU 4.11.3-041103-generic #201705251233 SMP Thu May 25 16:34:52 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenial
你可能和我有同样的问题，我少了一个。.so 文件在我的动态共享库路径外的一个文件夹里。我可以看到，通过按照描述的步骤在 此处. 为了解决这个问题，我不得不运行 export LD_LIBRARY_PATH=/lib:/usr/lib:/usr/local/lib