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125 lines
2.7 KiB
Text
125 lines
2.7 KiB
Text
<!-- ##### SECTION Title ##### -->
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Gstreamer
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<!-- ##### SECTION Short_Description ##### -->
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Media library supporting arbitrary formats and filter graphs.
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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GStreamer is a framework for constructing graphs of various filters
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(termed elements here) that will handle streaming media. Any discreet
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(packetizable) media type is supported, with provisions for automatically
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determining source type. Metadata can be passed with all data to provide
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formatting/framing information. Plugins are heavily used to provide for
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all elements, allowing one to construct plugins outside of the GST
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library, even released binary-only if license require (please don't).
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</para>
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<para>
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GStreamer borrows heavily from both the <ulink
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url="http://www.cse.ogi.edu/sysl/">OGI media pipeline</ulink> and
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Microsoft's DirectShow, hopefully taking the best of both and leaving the
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cruft behind. Its interface is still very fluid (I've redesigned the
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metadata handling twice already), and thus can be changed to increase the
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sanity/noise ratio.
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</para>
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<para>
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The <application>GStreamer</application> library should be initialized with gst_init() before
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it can be used. You should pass a pointer to the main argc and argv variables so that GStreamer can
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process its own command line options, as shown in the following example.
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<programlisting>
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int
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main (int argc, char *argv[])
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{
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// initialize the GStreamer library
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gst_init (&argc, &argv);
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...
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}
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</programlisting>
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</para>
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<para>
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Use gst_version() to query the library version at runtime or use the GST_VERSION_* macros
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to find the version at compile time.
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</para>
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<para>
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gst_main() and gst_main_quit() enter and exit the main loop.
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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Check out both <ulink url="http://www.cse.ogi.edu/sysl/">OGI's
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pipeline</ulink> and Microsoft's DirectShow for some background.
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</para>
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<!-- ##### FUNCTION gst_init ##### -->
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<para>
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</para>
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@argc:
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@argv:
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<!-- ##### FUNCTION gst_init_with_popt_table ##### -->
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<para>
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</para>
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@argc:
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@argv:
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@popt_options:
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<!-- ##### FUNCTION gst_version ##### -->
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<para>
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</para>
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@major:
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@minor:
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@micro:
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<!-- ##### FUNCTION gst_main ##### -->
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<para>
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</para>
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<!-- ##### FUNCTION gst_main_quit ##### -->
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<para>
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</para>
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<!-- ##### VARIABLE g_log_domain_gstreamer ##### -->
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<para>
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</para>
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<!-- ##### MACRO GST_VERSION_MAJOR ##### -->
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<para>
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The major version of GStreamer at compile time
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</para>
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<!-- ##### MACRO GST_VERSION_MINOR ##### -->
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<para>
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The minor version of GStreamer at compile time
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</para>
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<!-- ##### MACRO GST_VERSION_MICRO ##### -->
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<para>
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The micro version of GStreamer at compile time
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</para>
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