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/* GStreamer
*
* Copyright (C) 2007 Rene Stadler <mail@renestadler.de>
* Copyright (C) 2007-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:element-giostreamsrc
*
* This plugin reads data from a custom GIO #GInputStream.
*
* It can, for example, be used to read data from memory with a
* #GMemoryInputStream or to read from a file with a
* #GFileInputStream.
*
* <refsect2>
* <title>Example code</title>
* <para>
* The following example reads data from a #GMemoryInputStream.
* |[
#include <gst/gst.h>
#include <gio/gio.h>
...
GstElement *src;
GMemoryInputStream *stream;
// in_data will contain the data to send
guint8 *in_data;
gint i;
...
in_data = g_new (guint8, 512);
for (i = 0; i < 512; i++)
in_data[i] = i % 256;
stream = G_MEMORY_INPUT_STREAM (g_memory_input_stream_new_from_data (in_data, 512,
(GDestroyNotify) g_free));
src = gst_element_factory_make ("giostreamsrc", "src");
g_object_set (G_OBJECT (src), "stream", stream, NULL);
...
* ]|
* </para>
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gstgiostreamsrc.h"
GST_DEBUG_CATEGORY_STATIC (gst_gio_stream_src_debug);
#define GST_CAT_DEFAULT gst_gio_stream_src_debug
enum
{
PROP_0,
PROP_STREAM
};
#define gst_gio_stream_src_parent_class parent_class
G_DEFINE_TYPE (GstGioStreamSrc, gst_gio_stream_src, GST_TYPE_GIO_BASE_SRC);
static void gst_gio_stream_src_finalize (GObject * object);
static void gst_gio_stream_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_gio_stream_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GInputStream *gst_gio_stream_src_get_stream (GstGioBaseSrc * bsrc);
static void
gst_gio_stream_src_class_init (GstGioStreamSrcClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstElementClass *gstelement_class = (GstElementClass *) klass;
GstGioBaseSrcClass *gstgiobasesrc_class = (GstGioBaseSrcClass *) klass;
GST_DEBUG_CATEGORY_INIT (gst_gio_stream_src_debug, "gio_stream_src", 0,
"GIO source");
gobject_class->finalize = gst_gio_stream_src_finalize;
gobject_class->set_property = gst_gio_stream_src_set_property;
gobject_class->get_property = gst_gio_stream_src_get_property;
g_object_class_install_property (gobject_class, PROP_STREAM,
g_param_spec_object ("stream", "Stream", "Stream to read from",
G_TYPE_INPUT_STREAM, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_details_simple (gstelement_class, "GIO stream source",
"Source",
"Read from any GIO stream",
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
gstgiobasesrc_class->get_stream =
GST_DEBUG_FUNCPTR (gst_gio_stream_src_get_stream);
}
static void
gst_gio_stream_src_init (GstGioStreamSrc * src)
{
}
static void
gst_gio_stream_src_finalize (GObject * object)
{
GstGioStreamSrc *src = GST_GIO_STREAM_SRC (object);
if (src->stream) {
g_object_unref (src->stream);
src->stream = NULL;
}
GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
}
static void
gst_gio_stream_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstGioStreamSrc *src = GST_GIO_STREAM_SRC (object);
switch (prop_id) {
case PROP_STREAM:{
GObject *stream;
if (GST_STATE (src) == GST_STATE_PLAYING ||
GST_STATE (src) == GST_STATE_PAUSED) {
GST_WARNING
("Setting a new stream not supported in PLAYING or PAUSED state");
break;
}
stream = g_value_dup_object (value);
if (src->stream)
g_object_unref (src->stream);
src->stream = G_INPUT_STREAM (stream);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_gio_stream_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstGioStreamSrc *src = GST_GIO_STREAM_SRC (object);
switch (prop_id) {
case PROP_STREAM:
g_value_set_object (value, src->stream);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GInputStream *
gst_gio_stream_src_get_stream (GstGioBaseSrc * bsrc)
{
GstGioStreamSrc *src = GST_GIO_STREAM_SRC (bsrc);
return (src->stream) ? g_object_ref (src->stream) : NULL;
}
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