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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>GstStreams: GStreamer 1.0 Core Reference Manual</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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<link rel="home" href="index.html" title="GStreamer 1.0 Core Reference Manual">
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<link rel="up" href="libgstreamer.html" title="GStreamer Core Library">
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<link rel="prev" href="GstSegment.html" title="GstSegment">
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<link rel="next" href="gstreamer-GstStreamCollection.html" title="GstStreamCollection">
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</head>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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Description
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GstStreams
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GstStreams — Base class for stream objects
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Functions
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GstStream *
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gst_stream_new ()
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GstCaps *
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gst_stream_get_caps ()
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GstStreamFlags
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gst_stream_get_stream_flags ()
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const gchar *
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gst_stream_get_stream_id ()
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GstStreamType
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gst_stream_get_stream_type ()
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GstTagList *
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gst_stream_get_tags ()
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void
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gst_stream_set_caps ()
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void
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gst_stream_set_stream_flags ()
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void
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gst_stream_set_stream_type ()
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void
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gst_stream_set_tags ()
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const gchar *
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gst_stream_type_get_name ()
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Types and Values
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struct
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GstStream
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struct
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GstStreamClass
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enum
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GstStreamType
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Includes
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#include <gst/gstprotection.h>
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Description
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A GstStream is a high-level object defining a stream of data which is, or
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can be, present in a GstPipeline.
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It is defined by a unique identifier, a "Stream ID". A GstStream does not
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automatically imply the stream is present within a pipeline or element.
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Any element that can introduce new streams in a pipeline should create the
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appropriate GstStream object, and can convey that object via the
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GST_EVENT_STREAM_START event and/or the GstStreamCollection.
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Elements that do not modify the nature of the stream can add extra information
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on it (such as enrich the GstCaps, or GstTagList). This is typically done
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by parsing elements.
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Functions
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gst_stream_new ()
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GstStream *
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gst_stream_new (const gchar *stream_id,
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GstCaps *caps,
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GstStreamType type,
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GstStreamFlags flags);
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Create a new GstStream for the given stream_id
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, caps
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, type
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and flags
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Parameters
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stream_id
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the id for the new stream. If NULL,
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a new one will be automatically generated.
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[allow-none]
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caps
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the GstCaps of the stream.
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[allow-none][transfer none]
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type
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the GstStreamType of the stream
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flags
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the GstStreamFlags of the stream
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Returns
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The new GstStream.
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[transfer full]
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Since: 1.10
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gst_stream_get_caps ()
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GstCaps *
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gst_stream_get_caps (GstStream *stream);
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Retrieve the caps for stream
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, if any
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Parameters
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stream
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a GstStream
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Returns
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The GstCaps for stream
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.
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[transfer full][nullable]
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Since: 1.10
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gst_stream_get_stream_flags ()
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GstStreamFlags
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gst_stream_get_stream_flags (GstStream *stream);
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Retrieve the current stream flags for stream
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Parameters
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stream
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a GstStream
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Returns
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The GstStreamFlags for stream
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Since: 1.10
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gst_stream_get_stream_id ()
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const gchar *
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gst_stream_get_stream_id (GstStream *stream);
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Returns the stream ID of stream
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Parameters
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stream
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a GstStream
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Returns
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the stream ID of stream
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. Only valid
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during the lifetime of stream
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.
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[transfer none][nullable]
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Since: 1.10
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gst_stream_get_stream_type ()
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GstStreamType
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gst_stream_get_stream_type (GstStream *stream);
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Retrieve the stream type for stream
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Parameters
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stream
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a GstStream
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Returns
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The GstStreamType for stream
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Since: 1.10
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gst_stream_get_tags ()
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GstTagList *
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gst_stream_get_tags (GstStream *stream);
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Retrieve the tags for stream
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, if any
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Parameters
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stream
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a GstStream
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Returns
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The GstTagList for stream
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.
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[transfer full][nullable]
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Since: 1.10
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gst_stream_set_caps ()
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void
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gst_stream_set_caps (GstStream *stream,
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GstCaps *caps);
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Set the caps for the GstStream
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Parameters
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stream
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a GstStream
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caps
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a GstCaps.
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[transfer none][allow-none]
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Since: 1.10
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gst_stream_set_stream_flags ()
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void
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gst_stream_set_stream_flags (GstStream *stream,
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f546b1 |
GstStreamFlags flags);
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Set the flags
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for the stream
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.
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Parameters
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stream
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a GstStream
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flags
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the flags to set on stream
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Since: 1.10
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gst_stream_set_stream_type ()
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void
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gst_stream_set_stream_type (GstStream *stream,
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GstStreamType stream_type);
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Set the stream type of stream
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Parameters
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stream
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a GstStream
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stream_type
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the type to set on stream
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Since: 1.10
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gst_stream_set_tags ()
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void
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gst_stream_set_tags (GstStream *stream,
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GstTagList *tags);
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Set the tags for the GstStream
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Parameters
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stream
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a GstStream
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tags
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a GstTagList.
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[transfer none][allow-none]
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Since: 1.10
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gst_stream_type_get_name ()
|
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f546b1 |
const gchar *
|
|
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gst_stream_type_get_name (GstStreamType stype);
|
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f546b1 |
Get a descriptive string for a given GstStreamType
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Parameters
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stype
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a GstStreamType
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Returns
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A string describing the stream type.
|
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[nullable]
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Since: 1.10
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Types and Values
|
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struct GstStream
|
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struct GstStream {
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f546b1 |
const gchar *stream_id;
|
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};
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f546b1 |
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A high-level object representing a single stream. It might be backed, or
|
|
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f546b1 |
not, by an actual flow of data in a pipeline (GstPad).
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f546b1 |
A GstStream does not care about data changes (such as decoding, encoding,
|
|
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f546b1 |
parsing,...) as long as the underlying data flow corresponds to the same
|
|
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f546b1 |
high-level flow (ex: a certain audio track).
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A GstStream contains all the information pertinent to a stream, such as
|
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f546b1 |
stream-id, tags, caps, type, ...
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Elements can subclass a GstStream for internal usage (to contain information
|
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pertinent to streams of data).
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Members
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const gchar *stream_id;
|
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The Stream Identifier for this GstStream
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Since: 1.10
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struct GstStreamClass
|
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struct GstStreamClass {
|
|
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f546b1 |
GstObjectClass parent_class;
|
|
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};
|
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|
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GstStream class structure
|
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Members
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enum GstStreamType
|
|
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GstStreamType describes a high level classification set for
|
|
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flows of data in GstStream objects.
|
|
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Note that this is a flag, and therefore users should not assume it
|
|
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will be a single value. Do not use the equality operator for checking
|
|
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whether a stream is of a certain type.
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Members
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GST_STREAM_TYPE_UNKNOWN
|
|
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|
|
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The stream is of unknown (unclassified) type.
|
|
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GST_STREAM_TYPE_AUDIO
|
|
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|
|
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The stream is of audio data
|
|
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GST_STREAM_TYPE_VIDEO
|
|
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|
|
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The stream carries video data
|
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GST_STREAM_TYPE_CONTAINER
|
|
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|
|
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The stream is a muxed container type
|
|
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GST_STREAM_TYPE_TEXT
|
|
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|
|
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The stream contains subtitle / subpicture data.
|
|
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Since: 1.10
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Generated by GTK-Doc V1.27
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</body>
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</html>
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