新笔记本电脑，安装了 Ubuntu 16.04，一切都很好。现在我正尝试使用我的 qt 应用程序播放视频。遗憾的是，我在执行此操作时收到错误 - 对于 avi 文件，我得到的是：
(myApp:2322): GStreamer-CRITICAL **: gst_caps_copy: assertion 'GST_IS_CAPS (caps)' failed
(myApp:2322): GLib-GObject-WARNING **: /build/glib2.0-7ZsPUq/glib2.0-2.48.2/./gobject/gtype.c:4273: type id '0' is invalid
(myApp:2322): GLib-GObject-WARNING **: can't peek value table for type '<invalid>' which is not currently referenced
Segmentation fault (core dumped)
对于 mp4 文件我得到：
(myApp:2189): GStreamer-CRITICAL **: gst_caps_ref: assertion 'GST_CAPS_REFCOUNT_VALUE (caps) > 0' failed
(myApp:2189): GStreamer-CRITICAL **: gst_caps_ref: assertion 'GST_CAPS_REFCOUNT_VALUE (caps) > 0' failed
(myApp:2189): GStreamer-CRITICAL **: gst_caps_unref: assertion 'GST_CAPS_REFCOUNT_VALUE (caps) > 0' failed
(myApp:2189): GLib-GObject-WARNING **: /build/glib2.0-7ZsPUq/glib2.0-2.48.2/./gobject/gtype.c:4273: type id '0' is invalid
(myApp:2189): GLib-GObject-WARNING **: can't peek value table for type '<invalid>' which is not currently referenced
Segmentation fault (core dumped)
我使用的是 qt 5.10、Ubuntu 16.04，尝试了多种解决此问题的建议，但都无济于事。在我的应用程序可执行文件上执行 ldd myApp | grep "gst*" 输出以下内容：
libgstreamer-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstreamer-0.10.so.0 (0x00007f41ae295000)
libgstvideo-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstvideo-0.10.so.0 (0x00007f41adb14000)
libgstapp-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstapp-0.10.so.0 (0x00007f41ad907000)
libgstriff-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstriff-0.10.so.0 (0x00007f41ad6fa000)
libgstpbutils-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstpbutils-0.10.so.0 (0x00007f41ad4d6000)
libgstbase-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstbase-0.10.so.0 (0x00007f41a4b59000)
libgstaudio-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstaudio-0.10.so.0 (0x00007f41a469e000)
libgsttag-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgsttag-0.10.so.0 (0x00007f41a4466000)
libgsm.so.1 => /usr/lib/x86_64-linux-gnu/libgsm.so.1 (0x00007f419f842000)
libgstinterfaces-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstinterfaces-0.10.so.0 (0x00007f419cf48000)
libgssapi_krb5.so.2 => /usr/lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x00007f419c17f000)
Dpkg -l | grep "gst*" 在终端中给出
ii gir1.2-click-0.4 0.4.43+16.04.20170613-0ubuntu1 amd64 GIR bindings for Click package management library
ii gir1.2-gst-plugins-bad-1.0 1.8.3-1ubuntu0.2 amd64 GObject introspection data for the GStreamer libraries from the "bad" set
ii gir1.2-gst-plugins-base-1.0 1.8.3-1ubuntu0.3 amd64 GObject introspection data for the GStreamer Plugins Base library
ii gir1.2-gstreamer-1.0 1.8.3-1~ubuntu0.1 amd64 GObject introspection data for the GStreamer library
ii gir1.2-gtk-2.0 2.24.30-1ubuntu1.16.04.2 amd64 GTK+ graphical user interface library -- gir bindings
ii gir1.2-gtk-3.0:amd64 3.18.9-1ubuntu3.3 amd64 GTK+ graphical user interface library -- gir bindings
ii gir1.2-pango-1.0:amd64 1.38.1-1 amd64 Layout and rendering of internationalized text - gir bindings
ii gstreamer1.0-alsa:amd64 1.8.3-1ubuntu0.3 amd64 GStreamer plugin for ALSA
ii gstreamer1.0-clutter-3.0 3.0.18-1 amd64 Clutter PLugin for GStreamer 1.0
ii gstreamer1.0-libav:amd64 1.8.3-1ubuntu0.2 amd64 libav plugin for GStreamer
ii gstreamer1.0-plugins-bad:amd64 1.8.3-1ubuntu0.2 amd64 GStreamer plugins from the "bad" set
ii gstreamer1.0-plugins-bad-faad:amd64 1.8.3-1ubuntu0.2 amd64 GStreamer faad plugin from the "bad" set
ii gstreamer1.0-plugins-bad-videoparsers:amd64 1.8.3-1ubuntu0.2 amd64 GStreamer videoparsers plugin from the "bad" set
ii gstreamer1.0-plugins-base:amd64 1.8.3-1ubuntu0.3 amd64 GStreamer plugins from the "base" set
ii gstreamer1.0-plugins-base-apps 1.8.3-1ubuntu0.3 amd64 GStreamer helper programs from the "base" set
ii gstreamer1.0-plugins-good:amd64 1.8.3-1ubuntu0.4 amd64 GStreamer plugins from the "good" set
ii gstreamer1.0-plugins-ugly:amd64 1.8.3-1ubuntu0.1 amd64 GStreamer plugins from the "ugly" set
ii gstreamer1.0-plugins-ugly-amr:amd64 1.8.3-1ubuntu0.1 amd64 GStreamer plugins from the "ugly" set
ii gstreamer1.0-pulseaudio:amd64 1.8.3-1ubuntu0.4 amd64 GStreamer plugin for PulseAudio
ii gstreamer1.0-tools 1.8.3-1~ubuntu0.1 amd64 Tools for use with GStreamer
ii gstreamer1.0-x:amd64 1.8.3-1ubuntu0.3 amd64 GStreamer plugins for X11 and Pango
ii libgstreamer-plugins-bad1.0-0:amd64 1.8.3-1ubuntu0.2 amd64 GStreamer development files for libraries from the "bad" set
ii libgstreamer-plugins-bad1.0-dev 1.8.3-1ubuntu0.2 amd64 GStreamer development files for libraries from the "bad" set
ii libgstreamer-plugins-base0.10-0:amd64 0.10.36-2ubuntu0.2 amd64 GStreamer libraries from the "base" set
ii libgstreamer-plugins-base1.0-0:amd64 1.8.3-1ubuntu0.3 amd64 GStreamer libraries from the "base" set
ii libgstreamer-plugins-base1.0-dev 1.8.3-1ubuntu0.3 amd64 GStreamer development files for libraries from the "base" set
ii libgstreamer-plugins-good1.0-0:amd64 1.8.3-1ubuntu0.4 amd64 GStreamer development files for libraries from the "good" set
ii libgstreamer-plugins-good1.0-dev 1.8.3-1ubuntu0.4 amd64 GStreamer development files for libraries from the "good" set
ii libgstreamer0.10-0:amd64 0.10.36-1.5ubuntu1 amd64 Core GStreamer libraries and elements
ii libgstreamer1.0-0:amd64 1.8.3-1~ubuntu0.1 amd64 Core GStreamer libraries and elements
ii libgstreamer1.0-dev 1.8.3-1~ubuntu0.1 amd64 GStreamer core development files
Gst-launch-1.0 --版本输出
gst-launch-1.0 version 1.14.0
GStreamer 1.14.0
Unknown package origin
重要的一点是 - 我的应用程序在其他 ubuntu 16.04 计算机上运行没有问题。我可以使用 totem/vlc 在这台笔记本电脑上打开相同的视频，但不能使用 rhythmbox。
有什么建议么？
答案1
更新 - 经过漫长的一天，结果发现 opencv lib 链接到 gstreamer0.10，qt 链接到 1.0。这显然效果不佳。当编译 opencv 并链接到 gstreamer1.0 时，工作正常。