path: root/libempathy-gtk/empathy-video-src.c

/*
 * empathy-gst-video-src.c - Source for EmpathyGstVideoSrc
 * Copyright (C) 2008 Collabora Ltd.
 * @author Sjoerd Simons <sjoerd.simons@collabora.co.uk>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser 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
 */


#include <stdio.h>
#include <stdlib.h>

#include "empathy-video-src.h"

G_DEFINE_TYPE(EmpathyGstVideoSrc, empathy_video_src, GST_TYPE_BIN)

/* signal enum */
#if 0
enum
{
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = {0};
#endif

/* private structure */
typedef struct _EmpathyGstVideoSrcPrivate EmpathyGstVideoSrcPrivate;

struct _EmpathyGstVideoSrcPrivate
{
  gboolean dispose_has_run;
  GstElement *src;
};

#define EMPATHY_GST_VIDEO_SRC_GET_PRIVATE(o) \
  (G_TYPE_INSTANCE_GET_PRIVATE ((o), EMPATHY_TYPE_GST_VIDEO_SRC, \
    EmpathyGstVideoSrcPrivate))

static void
empathy_video_src_init (EmpathyGstVideoSrc *obj)
{
  EmpathyGstVideoSrcPrivate *priv = EMPATHY_GST_VIDEO_SRC_GET_PRIVATE (obj);
  GstElement *scale, *rate, *colorspace, *capsfilter;
  GstPad *ghost, *src;
  GstCaps *caps;

  /* allocate any data required by the object here */
  scale = gst_element_factory_make ("videoscale", NULL);
  rate = gst_element_factory_make ("videorate", NULL);
  colorspace = gst_element_factory_make ("ffmpegcolorspace", NULL);

  capsfilter = gst_element_factory_make ("capsfilter", NULL);
  caps = gst_caps_new_simple ("video/x-raw-yuv",
    "width", G_TYPE_INT, 320,
    "height", G_TYPE_INT, 240,
    NULL);

  g_object_set (G_OBJECT (capsfilter), "caps", caps, NULL);

  priv->src = gst_element_factory_make ("gconfvideosrc", NULL);

  gst_bin_add_many (GST_BIN (obj), priv->src, scale, rate,
    colorspace, capsfilter, NULL);
  gst_element_link_many (priv->src, scale, rate, colorspace, capsfilter, NULL);

  src = gst_element_get_static_pad (capsfilter, "src");

  ghost = gst_ghost_pad_new ("src", src);
  gst_element_add_pad (GST_ELEMENT (obj), ghost);

  gst_object_unref (G_OBJECT (src));
}

static void empathy_video_src_dispose (GObject *object);
static void empathy_video_src_finalize (GObject *object);

static void
empathy_video_src_class_init (EmpathyGstVideoSrcClass *empathy_video_src_class)
{
  GObjectClass *object_class = G_OBJECT_CLASS (empathy_video_src_class);

  g_type_class_add_private (empathy_video_src_class,
    sizeof (EmpathyGstVideoSrcPrivate));

  object_class->dispose = empathy_video_src_dispose;
  object_class->finalize = empathy_video_src_finalize;
}

void
empathy_video_src_dispose (GObject *object)
{
  EmpathyGstVideoSrc *self = EMPATHY_GST_VIDEO_SRC (object);
  EmpathyGstVideoSrcPrivate *priv = EMPATHY_GST_VIDEO_SRC_GET_PRIVATE (self);

  if (priv->dispose_has_run)
    return;

  priv->dispose_has_run = TRUE;

  /* release any references held by the object here */

  if (G_OBJECT_CLASS (empathy_video_src_parent_class)->dispose)
    G_OBJECT_CLASS (empathy_video_src_parent_class)->dispose (object);
}

void
empathy_video_src_finalize (GObject *object)
{
  //EmpathyGstVideoSrc *self = EMPATHY_GST_VIDEO_SRC (object);
  //EmpathyGstVideoSrcPrivate *priv = EMPATHY_GST_VIDEO_SRC_GET_PRIVATE (self);

  /* free any data held directly by the object here */

  G_OBJECT_CLASS (empathy_video_src_parent_class)->finalize (object);
}

GstElement *
empathy_video_src_new (void)
{
  return GST_ELEMENT (g_object_new (EMPATHY_TYPE_GST_VIDEO_SRC, NULL));
}