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Modernizing the documentation, making it simpler to read an modify and allowing us to possibly switch to hotdoc in the future.
191 lines
5.2 KiB
C
191 lines
5.2 KiB
C
/* GStreamer
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*
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* Copyright (C) 2007 Rene Stadler <mail@renestadler.de>
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* Copyright (C) 2007-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-giostreamsink
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* @title: giostreamsink
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*
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* This plugin writes incoming data to a custom GIO #GOutputStream.
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*
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* It can, for example, be used to write a stream to memory with a
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* #GMemoryOuputStream or to write to a file with a #GFileOuputStream.
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*
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* ## Example code
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*
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* The following example writes the received data to a #GMemoryOutputStream.
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* |[
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#include <gst/gst.h>
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#include <gio/gio.h>
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...
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GstElement *sink;
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GMemoryOuputStream *stream;
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// out_data will contain the received data
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guint8 *out_data;
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...
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stream = G_MEMORY_OUTPUT_STREAM (g_memory_output_stream_new (NULL, 0,
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(GReallocFunc) g_realloc, (GDestroyNotify) g_free));
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sink = gst_element_factory_make ("giostreamsink", "sink");
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g_object_set (G_OBJECT (sink), "stream", stream, NULL);
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...
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// after processing get the written data
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out_data = g_memory_ouput_stream_get_data (G_MEMORY_OUTPUT_STREAM (stream));
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...
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* ]|
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "gstgiostreamsink.h"
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GST_DEBUG_CATEGORY_STATIC (gst_gio_stream_sink_debug);
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#define GST_CAT_DEFAULT gst_gio_stream_sink_debug
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/* Filter signals and args */
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enum
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{
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_STREAM
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};
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#define gst_gio_stream_sink_parent_class parent_class
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G_DEFINE_TYPE (GstGioStreamSink, gst_gio_stream_sink, GST_TYPE_GIO_BASE_SINK);
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static void gst_gio_stream_sink_finalize (GObject * object);
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static void gst_gio_stream_sink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_gio_stream_sink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GOutputStream *gst_gio_stream_sink_get_stream (GstGioBaseSink * bsink);
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static void
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gst_gio_stream_sink_class_init (GstGioStreamSinkClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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GstElementClass *gstelement_class = (GstElementClass *) klass;
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GstGioBaseSinkClass *ggbsink_class = (GstGioBaseSinkClass *) klass;
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GST_DEBUG_CATEGORY_INIT (gst_gio_stream_sink_debug, "gio_stream_sink", 0,
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"GIO stream sink");
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gobject_class->finalize = gst_gio_stream_sink_finalize;
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gobject_class->set_property = gst_gio_stream_sink_set_property;
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gobject_class->get_property = gst_gio_stream_sink_get_property;
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g_object_class_install_property (gobject_class, PROP_STREAM,
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g_param_spec_object ("stream", "Stream", "Stream to write to",
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G_TYPE_OUTPUT_STREAM, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gst_element_class_set_static_metadata (gstelement_class, "GIO stream sink",
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"Sink",
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"Write to any GIO stream",
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"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
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ggbsink_class->get_stream =
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GST_DEBUG_FUNCPTR (gst_gio_stream_sink_get_stream);
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}
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static void
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gst_gio_stream_sink_init (GstGioStreamSink * sink)
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{
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}
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static void
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gst_gio_stream_sink_finalize (GObject * object)
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{
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GstGioStreamSink *sink = GST_GIO_STREAM_SINK (object);
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if (sink->stream) {
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g_object_unref (sink->stream);
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sink->stream = NULL;
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}
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GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
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}
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static void
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gst_gio_stream_sink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstGioStreamSink *sink = GST_GIO_STREAM_SINK (object);
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switch (prop_id) {
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case PROP_STREAM:{
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GObject *stream;
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if (GST_STATE (sink) == GST_STATE_PLAYING ||
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GST_STATE (sink) == GST_STATE_PAUSED) {
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GST_WARNING
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("Setting a new stream not supported in PLAYING or PAUSED state");
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break;
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}
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stream = g_value_dup_object (value);
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if (sink->stream)
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g_object_unref (sink->stream);
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sink->stream = G_OUTPUT_STREAM (stream);
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break;
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}
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_gio_stream_sink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstGioStreamSink *sink = GST_GIO_STREAM_SINK (object);
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switch (prop_id) {
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case PROP_STREAM:
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g_value_set_object (value, GST_GIO_BASE_SINK (sink)->stream);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static GOutputStream *
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gst_gio_stream_sink_get_stream (GstGioBaseSink * bsink)
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{
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GstGioStreamSink *sink = GST_GIO_STREAM_SINK (bsink);
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return (sink->stream) ? g_object_ref (sink->stream) : NULL;
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}
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