gstreamer/docs/gst/tmpl/gstparse.sgml

<!-- ##### SECTION Title ##### -->
GstParse

<!-- ##### SECTION Short_Description ##### -->
Parses pipeline syntax into elements

<!-- ##### SECTION Long_Description ##### -->
<para>
This method allows you to create a pipeline from a command
line syntax description. The following example creates a simple
mp3 player.
<programlisting>
  GstElement *pipeline;

  /* create a pipeline to hold our elements */
  pipeline = gst_pipeline_new ("launch");

  /* build a pipeline in the pipeline */
  gst_parse_launch ("filesrc location=some.mp3 ! mad ! osssink", GST_BIN (pipeline));

  /* play the thing */
  gst_element_set_state (pipeline, GST_STATE_PLAYING);

  while (gst_bin_iterate (GST_BIN (pipeline)));

  gst_element_set_state (pipeline, GST_STATE_NULL);

</programlisting>
</para>

<para>
Elements are separated with a <option>!</option>, properties are set with 
<replaceable>property</replaceable>=<replaceable>value</replaceable>, specific pads
of an element are selected by replacing the <option>!</option> with 
<replaceable>padname</replaceable><option>!</option>.
</para>
<para>
Elements can be added to a bin by embracing them with <option>()</option>. Threads
can be made with <option>{}</option>. 
</para>

<!-- ##### SECTION See_Also ##### -->
<para>

</para>

<!-- ##### FUNCTION gst_parse_error_quark ##### -->
<para>
Get the error quark passed in the GError messages.
</para>

@Returns: The parse error quark


<!-- ##### MACRO GST_PARSE_ERROR ##### -->
<para>
The error quark
</para>



<!-- ##### ENUM GstParseError ##### -->
<para>
The parsing errors.
</para>

@GST_PARSE_ERROR_SYNTAX: A syntax error was detected
@GST_PARSE_ERROR_NO_SUCH_ELEMENT: The pipeline description contains a non existing element
@GST_PARSE_ERROR_NO_SUCH_PROPERTY: The pipeline description contains a non existing element property
@GST_PARSE_ERROR_LINK: A pad link could not be made
@GST_PARSE_ERROR_COULD_NOT_SET_PROPERTY: 
@GST_PARSE_ERROR_EMPTY_BIN: 
@GST_PARSE_ERROR_EMPTY: 

<!-- ##### FUNCTION gst_parse_launch ##### -->
<para>

</para>

@pipeline_description: 
@error: 
@Returns: 


<!-- ##### FUNCTION gst_parse_launchv ##### -->
<para>

</para>

@argv: 
@error: 
@Returns: