src/empathy-video-src.h

   1 /*
   2  * empathy-gst-video-src.h - Header for EmpathyGstVideoSrc
   3  * Copyright (C) 2008 Collabora Ltd.
   4  * @author Sjoerd Simons <sjoerd.simons@collabora.co.uk>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #ifndef __EMPATHY_GST_VIDEO_SRC_H__
  22 #define __EMPATHY_GST_VIDEO_SRC_H__
  23
  24 #include <glib-object.h>
  25 #include <gst/gst.h>
  26
  27 G_BEGIN_DECLS
  28
  29 typedef struct _EmpathyGstVideoSrc EmpathyGstVideoSrc;
  30 typedef struct _EmpathyGstVideoSrcClass EmpathyGstVideoSrcClass;
  31
  32 typedef enum {
  33   EMPATHY_GST_VIDEO_SRC_CHANNEL_CONTRAST = 0,
  34   EMPATHY_GST_VIDEO_SRC_CHANNEL_BRIGHTNESS = 1,
  35   EMPATHY_GST_VIDEO_SRC_CHANNEL_GAMMA = 2,
  36   NR_EMPATHY_GST_VIDEO_SRC_CHANNELS
  37 } EmpathyGstVideoSrcChannel;
  38
  39 #define  EMPATHY_GST_VIDEO_SRC_SUPPORTS_CONTRAST \
  40   (1 << EMPATHY_GST_VIDEO_SRC_CHANNEL_CONTRAST)
  41 #define  EMPATHY_GST_VIDEO_SRC_SUPPORTS_BRIGHTNESS \
  42   (1 << EMPATHY_GST_VIDEO_SRC_CHANNEL_BRIGHTNESS)
  43 #define  EMPATHY_GST_VIDEO_SRC_SUPPORTS_GAMMA \
  44   (1 << EMPATHY_GST_VIDEO_SRC_CHANNEL_GAMMA)
  45
  46 struct _EmpathyGstVideoSrcClass {
  47     GstBinClass parent_class;
  48 };
  49
  50 struct _EmpathyGstVideoSrc {
  51     GstBin parent;
  52 };
  53
  54 GType empathy_video_src_get_type (void);
  55
  56 /* TYPE MACROS */
  57 #define EMPATHY_TYPE_GST_VIDEO_SRC \
  58   (empathy_video_src_get_type ())
  59 #define EMPATHY_GST_VIDEO_SRC(obj) \
  60   (G_TYPE_CHECK_INSTANCE_CAST((obj), EMPATHY_TYPE_GST_VIDEO_SRC, \
  61     EmpathyGstVideoSrc))
  62 #define EMPATHY_GST_VIDEO_SRC_CLASS(klass) \
  63   (G_TYPE_CHECK_CLASS_CAST((klass), EMPATHY_TYPE_GST_VIDEO_SRC, \
  64     EmpathyGstVideoSrcClass))
  65 #define EMPATHY_IS_GST_VIDEO_SRC(obj) \
  66   (G_TYPE_CHECK_INSTANCE_TYPE((obj), EMPATHY_TYPE_GST_VIDEO_SRC))
  67 #define EMPATHY_IS_GST_VIDEO_SRC_CLASS(klass) \
  68   (G_TYPE_CHECK_CLASS_TYPE((klass), EMPATHY_TYPE_GST_VIDEO_SRC))
  69 #define EMPATHY_GST_VIDEO_SRC_GET_CLASS(obj) \
  70   (G_TYPE_INSTANCE_GET_CLASS ((obj), EMPATHY_TYPE_GST_VIDEO_SRC, \
  71     EmpathyGstVideoSrcClass))
  72
  73 GstElement *empathy_video_src_new (void);
  74
  75 guint
  76 empathy_video_src_get_supported_channels (GstElement *src);
  77
  78 void empathy_video_src_set_channel (GstElement *src,
  79   EmpathyGstVideoSrcChannel channel, guint percent);
  80
  81 guint empathy_video_src_get_channel (GstElement *src,
  82   EmpathyGstVideoSrcChannel channel);
  83
  84 void empathy_video_src_change_device (EmpathyGstVideoSrc *self,
  85   const gchar *device);
  86 gchar * empathy_video_src_dup_device (EmpathyGstVideoSrc *self);
  87
  88 void empathy_video_src_set_framerate (GstElement *src,
  89     guint framerate);
  90
  91 void empathy_video_src_set_resolution (GstElement *src,
  92     guint width, guint height);
  93
  94 G_END_DECLS
  95
  96 #endif /* #ifndef __EMPATHY_GST_VIDEO_SRC_H__*/