/* GStreamer

 *

 * Copyright (C) 2007 Rene Stadler <mail@renestadler.de>

 * Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>

 * 

 * 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

 * @short_description: Reads data from a GIO GInputStream

 *

 * <refsect2>

 * <para>

 * This plugin reads data from a custom GIO #GInputStream.

 * </para>

 * <para>

 * It can, for example, be used to read data from memory with a

 * #GMemoryInputStream or to read from a file with a

 * #GFileInputStream.

 * </para>

 * <title>Example code</title>

 * <para>

 * The following example reads data from a #GMemoryOutputStream.

 * <programlisting>

#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);

...

 * </programlisting>

 * </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

{

  ARG_0,

  ARG_STREAM

};

GST_BOILERPLATE (GstGioStreamSrc, gst_gio_stream_src, GstGioBaseSrc,

    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 void

gst_gio_stream_src_base_init (gpointer gclass)

{

  static GstElementDetails element_details = {

    "GIO stream source",

    "Source",

    "Read from any GIO stream",

    "Sebastian Dröge <slomo@circular-chaos.org>"

  };

  GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);

  GST_DEBUG_CATEGORY_INIT (gst_gio_stream_src_debug, "gio_stream_src", 0,

      "GIO source");

  gst_element_class_set_details (element_class, &element_details);

}

static void

gst_gio_stream_src_class_init (GstGioStreamSrcClass * klass)

{

  GObjectClass *gobject_class;

  GstElementClass *gstelement_class;

  GstBaseSrcClass *gstbasesrc_class;

  gobject_class = (GObjectClass *) klass;

  gstelement_class = (GstElementClass *) klass;

  gstbasesrc_class = (GstBaseSrcClass *) klass;

  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, ARG_STREAM,

      g_param_spec_object ("stream", "Stream", "Stream to read from",

          G_TYPE_INPUT_STREAM, G_PARAM_READWRITE));

}

static void

gst_gio_stream_src_init (GstGioStreamSrc * src, GstGioStreamSrcClass * gclass)

{

}

static void

gst_gio_stream_src_finalize (GObject * object)

{

  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 ARG_STREAM:{

      GObject *stream;

      if (GST_STATE (src) == GST_STATE_PLAYING ||

          GST_STATE (src) == GST_STATE_PAUSED)

        break;

      stream = g_value_dup_object (value);

      if (G_IS_INPUT_STREAM (stream))

        gst_gio_base_src_set_stream (GST_GIO_BASE_SRC (src),

            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 ARG_STREAM:

      g_value_set_object (value, GST_GIO_BASE_SRC (src)->stream);

      break;

    default:

      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);

      break;

  }

}