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<title>GstStreamCollection: GStreamer 1.0 Core Reference Manual</title>
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Top  | 
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                  Description
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GstStreamCollection
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GstStreamCollection — Base class for collection of streams
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Functions
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GstStreamCollection *
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gst_stream_collection_new ()
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gboolean
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gst_stream_collection_add_stream ()
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const gchar *
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gst_stream_collection_get_upstream_id ()
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guint
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gst_stream_collection_get_size ()
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GstStream *
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gst_stream_collection_get_stream ()
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Types and Values
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struct
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GstStreamCollection
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struct
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GstStreamCollectionClass
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Includes
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#include <gst/gstprotection.h>
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Description
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Functions
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gst_stream_collection_new ()
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GstStreamCollection *
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gst_stream_collection_new (const gchar *upstream_id);
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Create a new GstStreamCollection.
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Parameters
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upstream_id
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The stream id of the parent stream.
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[allow-none]
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Returns
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The new GstStreamCollection.
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[transfer full]
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Since: 1.10
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gst_stream_collection_add_stream ()
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gboolean
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gst_stream_collection_add_stream (GstStreamCollection *collection,
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                                  GstStream *stream);
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Add the given stream
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 to the collection
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.
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Parameters
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collection
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a GstStreamCollection
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stream
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the GstStream to add.
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[transfer full]
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Returns
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 TRUE if the stream
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was properly added, else FALSE
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Since: 1.10
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gst_stream_collection_get_upstream_id ()
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const gchar *
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gst_stream_collection_get_upstream_id (GstStreamCollection *collection);
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Returns the upstream id of the collection
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.
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Parameters
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collection
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a GstStreamCollection
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Returns
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The upstream id.
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[transfer none]
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Since: 1.10
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gst_stream_collection_get_size ()
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guint
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gst_stream_collection_get_size (GstStreamCollection *collection);
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Get the number of streams this collection contains
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Parameters
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collection
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a GstStreamCollection
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Returns
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 The number of streams that collection
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contains
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Since: 1.10
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gst_stream_collection_get_stream ()
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GstStream *
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gst_stream_collection_get_stream (GstStreamCollection *collection,
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                                  guint index);
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Retrieve the GstStream with index index
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 from the collection.
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The caller should not modify the returned GstStream
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Parameters
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collection
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a GstStreamCollection
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index
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Index of the stream to retrieve
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Returns
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A GstStream.
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[transfer none][nullable]
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Since: 1.10
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Types and Values
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struct GstStreamCollection
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struct GstStreamCollection {
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};
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A collection of GstStream that are available.
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A GstStreamCollection will be provided by elements that can make those
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streams available. Applications can use the collection to show the user
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what streams are available by using gst_stream_collection_get_stream()
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Once posted, a GstStreamCollection is immutable. Updates are made by sending
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a new GstStreamCollection message, which may or may not share some of
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the GstStream objects from the collection it replaces. The receiver can check
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the sender of a stream collection message to know which collection is
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obsoleted.
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Several elements in a pipeline can provide GstStreamCollection.
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Applications can activate streams from a collection by using the
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GST_EVENT_SELECT_STREAMS event on a pipeline, bin or element.
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Since: 1.10
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struct GstStreamCollectionClass
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struct GstStreamCollectionClass {
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  GstObjectClass parent_class;
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  /* signals */
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  void  (*stream_notify)      (GstStreamCollection *collection, GstStream *stream, GParamSpec * pspec);
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};
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GstStreamCollection class structure
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Members
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stream_notify ()
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default signal handler for the stream-notify signal
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