1 /* GStreamer 2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> 3 * Copyright (C) <2003> David Schleef <ds@schleef.org> 4 * Copyright (C) 2003 Arwed v. Merkatz <v.merkatz@gmx.net> 5 * Copyright (C) 2006 Mark Nauwelaerts <manauw@skynet.be> 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public 18 * License along with this library; if not, write to the 19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23 24 #ifndef __GST_VIDEO_GAMMA_H__ 25 #define __GST_VIDEO_GAMMA_H__ 26 27 #include <gst/gst.h> 28 #include <gst/video/video.h> 29 #include <gst/video/gstvideofilter.h> 30 31 G_BEGIN_DECLS 32 33 #define GST_TYPE_GAMMA \ 34 (gst_gamma_get_type()) 35 #define GST_GAMMA(obj) \ 36 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GAMMA,GstGamma)) 37 #define GST_GAMMA_CLASS(klass) \ 38 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GAMMA,GstGammaClass)) 39 #define GST_IS_GAMMA(obj) \ 40 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GAMMA)) 41 #define GST_IS_GAMMA_CLASS(klass) \ 42 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GAMMA)) 43 44 typedef struct _GstGamma GstGamma; 45 typedef struct _GstGammaClass GstGammaClass; 46 47 /** 48 * GstGamma: 49 * 50 * Opaque data structure. 51 */ 52 struct _GstGamma 53 { 54 GstVideoFilter videofilter; 55 56 /* < private > */ 57 /* properties */ 58 gdouble gamma; 59 60 /* tables */ 61 guint8 gamma_table[256]; 62 63 void (*process) (GstGamma *gamma, GstVideoFrame *frame); 64 }; 65 66 struct _GstGammaClass 67 { 68 GstVideoFilterClass parent_class; 69 }; 70 71 GType gst_gamma_get_type(void); 72 73 G_END_DECLS 74 75 #endif /* __GST_VIDEO_GAMMA_H__ */ 76