/* 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., 51 Franklin St, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 */

/**

 * SECTION:element-giostreamsink

 * @title: giostreamsink

 *

 * This plugin writes incoming data to a custom GIO #GOutputStream.

 *

 * It can, for example, be used to write a stream to memory with a

 * #GMemoryOuputStream or to write to a file with a #GFileOuputStream.

 *

 * ## Example code

 *

 * The following example writes the received data to a #GMemoryOutputStream.

 * |[

#include <gst/gst.h>

#include <gio/gio.h>

...

GstElement *sink;

GMemoryOuputStream *stream;

// out_data will contain the received data

guint8 *out_data;

...

stream = G_MEMORY_OUTPUT_STREAM (g_memory_output_stream_new (NULL, 0,

          (GReallocFunc) g_realloc, (GDestroyNotify) g_free));

sink = gst_element_factory_make ("giostreamsink", "sink");

g_object_set (G_OBJECT (sink), "stream", stream, NULL);

...

// after processing get the written data

out_data = g_memory_ouput_stream_get_data (G_MEMORY_OUTPUT_STREAM (stream));

...

 * ]|

 *

 */

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include "gstgiostreamsink.h"

GST_DEBUG_CATEGORY_STATIC (gst_gio_stream_sink_debug);

#define GST_CAT_DEFAULT gst_gio_stream_sink_debug

/* Filter signals and args */

enum

{

  LAST_SIGNAL

};

enum

{

  PROP_0,

  PROP_STREAM

};

#define gst_gio_stream_sink_parent_class parent_class

G_DEFINE_TYPE (GstGioStreamSink, gst_gio_stream_sink, GST_TYPE_GIO_BASE_SINK);

static void gst_gio_stream_sink_finalize (GObject * object);

static void gst_gio_stream_sink_set_property (GObject * object, guint prop_id,

    const GValue * value, GParamSpec * pspec);

static void gst_gio_stream_sink_get_property (GObject * object, guint prop_id,

    GValue * value, GParamSpec * pspec);

static GOutputStream *gst_gio_stream_sink_get_stream (GstGioBaseSink * bsink);

static void

gst_gio_stream_sink_class_init (GstGioStreamSinkClass * klass)

{

  GObjectClass *gobject_class = (GObjectClass *) klass;

  GstElementClass *gstelement_class = (GstElementClass *) klass;

  GstGioBaseSinkClass *ggbsink_class = (GstGioBaseSinkClass *) klass;

  GST_DEBUG_CATEGORY_INIT (gst_gio_stream_sink_debug, "gio_stream_sink", 0,

      "GIO stream sink");

  gobject_class->finalize = gst_gio_stream_sink_finalize;

  gobject_class->set_property = gst_gio_stream_sink_set_property;

  gobject_class->get_property = gst_gio_stream_sink_get_property;

  g_object_class_install_property (gobject_class, PROP_STREAM,

      g_param_spec_object ("stream", "Stream", "Stream to write to",

          G_TYPE_OUTPUT_STREAM, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));

  gst_element_class_set_static_metadata (gstelement_class, "GIO stream sink",

      "Sink",

      "Write to any GIO stream",

      "Sebastian Dröge <sebastian.droege@collabora.co.uk>");

  ggbsink_class->get_stream =

      GST_DEBUG_FUNCPTR (gst_gio_stream_sink_get_stream);

}

static void

gst_gio_stream_sink_init (GstGioStreamSink * sink)

{

}

static void

gst_gio_stream_sink_finalize (GObject * object)

{

  GstGioStreamSink *sink = GST_GIO_STREAM_SINK (object);

  if (sink->stream) {

    g_object_unref (sink->stream);

    sink->stream = NULL;

  }

  GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));

}

static void

gst_gio_stream_sink_set_property (GObject * object, guint prop_id,

    const GValue * value, GParamSpec * pspec)

{

  GstGioStreamSink *sink = GST_GIO_STREAM_SINK (object);

  switch (prop_id) {

    case PROP_STREAM:{

      GObject *stream;

      if (GST_STATE (sink) == GST_STATE_PLAYING ||

          GST_STATE (sink) == GST_STATE_PAUSED) {

        GST_WARNING

            ("Setting a new stream not supported in PLAYING or PAUSED state");

        break;

      }

      stream = g_value_dup_object (value);

      if (sink->stream)

        g_object_unref (sink->stream);

      sink->stream = G_OUTPUT_STREAM (stream);

      break;

    }

    default:

      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);

      break;

  }

}

static void

gst_gio_stream_sink_get_property (GObject * object, guint prop_id,

    GValue * value, GParamSpec * pspec)

{

  GstGioStreamSink *sink = GST_GIO_STREAM_SINK (object);

  switch (prop_id) {

    case PROP_STREAM:

      g_value_set_object (value, GST_GIO_BASE_SINK (sink)->stream);

      break;

    default:

      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);

      break;

  }

}

static GOutputStream *

gst_gio_stream_sink_get_stream (GstGioBaseSink * bsink)

{

  GstGioStreamSink *sink = GST_GIO_STREAM_SINK (bsink);

  return (sink->stream) ? g_object_ref (sink->stream) : NULL;

}