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91 lines
2.1 KiB
Text
91 lines
2.1 KiB
Text
<!-- ##### SECTION Title ##### -->
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GstParse
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<!-- ##### SECTION Short_Description ##### -->
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Parses commandline syntax into a pipeline.
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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This method allows you to create a pipeline from a command
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line syntax description. The following example creates a simple
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mp3 player.
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<programlisting>
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GstElement *pipeline;
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/* create a pipeline to hold our elements */
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pipeline = gst_pipeline_new ("launch");
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/* build a pipeline in the pipeline */
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gst_parse_launch ("filesrc location=some.mp3 ! mad ! osssink", GST_BIN (pipeline));
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/* play the thing */
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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while (gst_bin_iterate (GST_BIN (pipeline)));
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gst_element_set_state (pipeline, GST_STATE_NULL);
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</programlisting>
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</para>
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<para>
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Elements are separated with a <option>!</option>, properties are set with
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<replaceable>property</replaceable>=<replaceable>value</replaceable>, specific pads
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of an element are selected by replacing the <option>!</option> with
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<replaceable>padname</replaceable><option>!</option>.
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</para>
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<para>
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Elements can be added to a bin by embracing them with <option>()</option>. Threads
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can be made with <option>{}</option>.
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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</para>
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<!-- ##### ENUM GstParseError ##### -->
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<para>
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The parsing errors.
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</para>
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@GST_PARSE_ERROR_SYNTAX: A syntax error was detected
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@GST_PARSE_ERROR_NO_SUCH_ELEMENT: The pipeline description contains a non existing element
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@GST_PARSE_ERROR_NO_SUCH_PROPERTY: The pipeline description contains a non existing element property
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@GST_PARSE_ERROR_CONNECT: A pad connection could not be made
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<!-- ##### MACRO GST_PARSE_ERROR ##### -->
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<para>
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The error quark
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</para>
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<!-- ##### FUNCTION gst_parse_error_quark ##### -->
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<para>
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Get the error quark passed in the GError messages.
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</para>
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@Returns: The parse error quark
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<!-- ##### FUNCTION gst_parse_launch ##### -->
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<para>
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</para>
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@pipeline_description:
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@error:
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@Returns:
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<!-- ##### FUNCTION gst_parse_launchv ##### -->
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<para>
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</para>
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@argv:
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@error:
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@Returns:
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