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 <gst/gst.h>
  25
  26 G_BEGIN_DECLS
  27
  28 typedef struct _EmpathyGstVideoSrc EmpathyGstVideoSrc;
  29 typedef struct _EmpathyGstVideoSrcClass EmpathyGstVideoSrcClass;
  30
  31 typedef enum {
  32   EMPATHY_GST_VIDEO_SRC_CHANNEL_CONTRAST = 0,
  33   EMPATHY_GST_VIDEO_SRC_CHANNEL_BRIGHTNESS = 1,
  34   EMPATHY_GST_VIDEO_SRC_CHANNEL_GAMMA = 2,
  35   NR_EMPATHY_GST_VIDEO_SRC_CHANNELS
  36 } EmpathyGstVideoSrcChannel;
  37
  38 #define  EMPATHY_GST_VIDEO_SRC_SUPPORTS_CONTRAST \
  39   (1 << EMPATHY_GST_VIDEO_SRC_CHANNEL_CONTRAST)
  40 #define  EMPATHY_GST_VIDEO_SRC_SUPPORTS_BRIGHTNESS \
  41   (1 << EMPATHY_GST_VIDEO_SRC_CHANNEL_BRIGHTNESS)
  42 #define  EMPATHY_GST_VIDEO_SRC_SUPPORTS_GAMMA \
  43   (1 << EMPATHY_GST_VIDEO_SRC_CHANNEL_GAMMA)
  44
  45 struct _EmpathyGstVideoSrcClass {
  46     GstBinClass parent_class;
  47 };
  48
  49 struct _EmpathyGstVideoSrc {
  50     GstBin parent;
  51 };
  52
  53 GType empathy_video_src_get_type (void);
  54
  55 /* TYPE MACROS */
  56 #define EMPATHY_TYPE_GST_VIDEO_SRC \
  57   (empathy_video_src_get_type ())
  58 #define EMPATHY_GST_VIDEO_SRC(obj) \
  59   (G_TYPE_CHECK_INSTANCE_CAST((obj), EMPATHY_TYPE_GST_VIDEO_SRC, \
  60     EmpathyGstVideoSrc))
  61 #define EMPATHY_GST_VIDEO_SRC_CLASS(klass) \
  62   (G_TYPE_CHECK_CLASS_CAST((klass), EMPATHY_TYPE_GST_VIDEO_SRC, \
  63     EmpathyGstVideoSrcClass))
  64 #define EMPATHY_IS_GST_VIDEO_SRC(obj) \
  65   (G_TYPE_CHECK_INSTANCE_TYPE((obj), EMPATHY_TYPE_GST_VIDEO_SRC))
  66 #define EMPATHY_IS_GST_VIDEO_SRC_CLASS(klass) \
  67   (G_TYPE_CHECK_CLASS_TYPE((klass), EMPATHY_TYPE_GST_VIDEO_SRC))
  68 #define EMPATHY_GST_VIDEO_SRC_GET_CLASS(obj) \
  69   (G_TYPE_INSTANCE_GET_CLASS ((obj), EMPATHY_TYPE_GST_VIDEO_SRC, \
  70     EmpathyGstVideoSrcClass))
  71
  72 GstElement *empathy_video_src_new (void);
  73
  74 guint
  75 empathy_video_src_get_supported_channels (GstElement *src);
  76
  77 void empathy_video_src_set_channel (GstElement *src,
  78   EmpathyGstVideoSrcChannel channel, guint percent);
  79
  80 guint empathy_video_src_get_channel (GstElement *src,
  81   EmpathyGstVideoSrcChannel channel);
  82
  83 void empathy_video_src_change_device (EmpathyGstVideoSrc *self,
  84   const gchar *device);
  85 gchar * empathy_video_src_dup_device (EmpathyGstVideoSrc *self);
  86
  87 void empathy_video_src_set_framerate (GstElement *src,
  88     guint framerate);
  89
  90 void empathy_video_src_set_resolution (GstElement *src,
  91     guint width, guint height);
  92
  93 G_END_DECLS
  94
  95 #endif /* #ifndef __EMPATHY_GST_VIDEO_SRC_H__*/