gstreamer 一些重要网站和工具

gstreamer 的基本介绍网站，可以查看一些结构体，函数的使用：
https://gstreamer.freedesktop.org/documentation/plugin-development/advanced/allocation.html

gstreamer 查看节点的工具 gst-inspect-1.0  可以看到一个插件的基本属性，信号等等，示例：

# gst-inspect-1.0  appsink
Factory Details:
  Rank                     none (0)
  Long-name                AppSink
  Klass                    Generic/Sink
  Description              Allow the application to get access to raw buffer
  Author                   David Schleef , Wim Taymans

Plugin Details:
  Name                     app
  Description              Elements used to communicate with applications
  Filename                 /usr/lib64/gstreamer-1.0/libgstapp.so
  Version                  1.4.3
  License                  LGPL
  Source module            gst-plugins-base
  Source release date      2014-09-24
  Binary package           GStreamer Base Plug-ins source release
  Origin URL               Unknown package origin

GObject
 +----GInitiallyUnowned
       +----GstObject
             +----GstElement
                   +----GstBaseSink
                         +----GstAppSink
等等