1 /* GStreamer 2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 21 #ifndef __GST_VIDEO_BALANCE_H__ 22 #define __GST_VIDEO_BALANCE_H__ 23 24 #include <gst/gst.h> 25 #include <gst/video/video.h> 26 #include <gst/video/gstvideofilter.h> 27 28 G_BEGIN_DECLS 29 30 #define GST_TYPE_VIDEO_BALANCE \ 31 (gst_video_balance_get_type()) 32 #define GST_VIDEO_BALANCE(obj) \ 33 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_BALANCE,GstVideoBalance)) 34 #define GST_VIDEO_BALANCE_CLASS(klass) \ 35 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_BALANCE,GstVideoBalanceClass)) 36 #define GST_IS_VIDEO_BALANCE(obj) \ 37 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_BALANCE)) 38 #define GST_IS_VIDEO_BALANCE_CLASS(klass) \ 39 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_BALANCE)) 40 41 typedef struct _GstVideoBalance GstVideoBalance; 42 typedef struct _GstVideoBalanceClass GstVideoBalanceClass; 43 44 /** 45 * GstVideoBalance: 46 * 47 * Opaque data structure. 48 */ 49 struct _GstVideoBalance { 50 GstVideoFilter videofilter; 51 52 /* < private > */ 53 54 /* channels for interface */ 55 GList *channels; 56 57 /* properties */ 58 gdouble contrast; 59 gdouble brightness; 60 gdouble hue; 61 gdouble saturation; 62 63 /* tables */ 64 guint8 tabley[256]; 65 guint8 *tableu[256]; 66 guint8 *tablev[256]; 67 68 void (*process) (GstVideoBalance *balance, GstVideoFrame *frame); 69 }; 70 71 struct _GstVideoBalanceClass { 72 GstVideoFilterClass parent_class; 73 }; 74 75 GType gst_video_balance_get_type(void); 76 77 G_END_DECLS 78 79 #endif /* __GST_VIDEO_BALANCE_H__ */ 80