gstsparrow.h

   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  * Copyright (C) <2010> Douglas Bagnall <douglas@halo.gen.nz>
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Library General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Library General Public
  19  * License along with this library; if not, write to the
  20  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  21  * Boston, MA 02111-1307, USA.
  22  */
  23
  24
  25 #ifndef __GST_VIDEO_SPARROW_H__
  26 #define __GST_VIDEO_SPARROW_H__
  27
  28 #include <gst/video/gstvideofilter.h>
  29
  30 G_BEGIN_DECLS
  31
  32 #define SPARROW_PPM_DEBUG 1
  33
  34
  35 #include "sparrowconfig.h"
  36 #include "dSFMT/dSFMT.h"
  37 #include "cv.h"
  38
  39 #ifndef UNUSED
  40 #define UNUSED __attribute__ ((unused))
  41 #else
  42 #warning UNUSED is set
  43 #endif
  44
  45 /* the common recommendation is to default to 'hidden' and specifically mark
  46    the unhidden ('default') ones, but this might muck with gstreamer macros,
  47    some of which declare functions, and most sparrow functions are static
  48    anyway, so it is simpler to whitelist visibility.
  49
  50    http://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#index-fvisibility-2135
  51
  52    (actually, it seems like all functions are invisible or static, except the
  53    ones that gstreamer makes in macros).
  54  */
  55 #ifndef INVISIBLE
  56 #define INVISIBLE __attribute__ ((visibility("hidden")))
  57 #else
  58 #warning INVISIBLE is set
  59 #endif
  60
  61
  62 typedef guint32 pix_t;
  63 #define PIXSIZE (sizeof(pix_t))
  64
  65
  66 #define CALIBRATE_ON_MIN_T 2
  67 #define CALIBRATE_ON_MAX_T 7
  68 #define CALIBRATE_OFF_MIN_T 2
  69 #define CALIBRATE_OFF_MAX_T 9
  70 #define CALIBRATE_PATTERN_L 100
  71 #define CALIBRATE_SELF_SIZE 24
  72
  73
  74 #define MAX_CALIBRATE_SHAPES 4
  75
  76 #define FAKE_OTHER_PROJECTION 0
  77
  78 #define WAIT_COUNTDOWN (MAX(CALIBRATE_OFF_MAX_T, CALIBRATE_ON_MAX_T) + 3)
  79
  80 #define GST_TYPE_SPARROW \
  81   (gst_sparrow_get_type())
  82 #define GST_SPARROW(obj) \
  83   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SPARROW,GstSparrow))
  84 #define GST_SPARROW_CLASS(klass) \
  85   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SPARROW,GstSparrowClass))
  86 #define GST_IS_SPARROW(obj) \
  87   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SPARROW))
  88 #define GST_IS_SPARROW_CLASS(klass) \
  89   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SPARROW))
  90
  91
  92 #define MAX_CALIBRATION_LAG 16
  93 typedef struct lag_times_s {
  94   //guint32 hits;
  95   guint64 record;
  96 } lag_times_t;
  97
  98 typedef struct sparrow_format_s {
  99   gint32 width;
 100   gint32 height;
 101   guint32 pixcount;
 102   guint32 size;
 103
 104   guint32 rshift;
 105   guint32 gshift;
 106   guint32 bshift;
 107   guint32 rmask;
 108   guint32 gmask;
 109   guint32 bmask;
 110 } sparrow_format;
 111
 112 enum calibration_shape {
 113   NO_SHAPE = 0,
 114   VERTICAL_LINE,
 115   HORIZONTAL_LINE,
 116   FULLSCREEN,
 117   RECTANGLE,
 118 };
 119
 120 typedef struct sparrow_shape_s {
 121   /*Calibration shape definition -- a rectangle or line.
 122    For lines, only one dimension is used.*/
 123   enum calibration_shape shape;
 124   gint x;
 125   gint y;
 126   gint w;
 127   gint h;
 128 } sparrow_shape_t;
 129
 130 typedef struct sparrow_calibrate_s {
 131   /*calibration state, and shape and pattern definition */
 132   gboolean on;         /*for calibration pattern */
 133   gint wait;
 134   guint32 pattern[CALIBRATE_PATTERN_L];
 135   guint32 index;
 136   guint32 transitions;
 137 } sparrow_calibrate_t;
 138
 139
 140 typedef struct _GstSparrow GstSparrow;
 141 typedef struct _GstSparrowClass GstSparrowClass;
 142
 143 typedef enum {
 144   SPARROW_INIT,
 145   SPARROW_FIND_SELF,
 146   SPARROW_WAIT_FOR_GRID,
 147   SPARROW_FIND_EDGES,
 148   SPARROW_FIND_GRID,
 149   SPARROW_PLAY,
 150 } sparrow_state;
 151
 152
 153 /**
 154  * GstSparrow:
 155  *
 156  * Opaque data structure.
 157  */
 158 struct _GstSparrow
 159 {
 160   GstVideoFilter videofilter;
 161
 162   sparrow_format in;
 163   sparrow_format out;
 164   sparrow_shape_t shapes[MAX_CALIBRATE_SHAPES];
 165   sparrow_calibrate_t calibrate;
 166
 167   /* properties */
 168   gint calibrate_flag;  /*whether to calibrate */
 169
 170   /* misc */
 171   dsfmt_t *dsfmt;  /*rng*/
 172
 173   /*state */
 174   sparrow_state state;
 175   sparrow_state next_state;
 176
 177   lag_times_t *lag_table;
 178   guint64 lag_record;
 179   guint32 lag;
 180
 181   gint32 countdown; /*intra-state timing*/
 182
 183   /*buffer pointers for previous frames */
 184   guint8 *in_frame;
 185   guint8 *prev_frame;
 186   guint8 *work_frame;
 187   guint8 *debug_frame;
 188
 189   GstBuffer *in_buffer;
 190   GstBuffer *prev_buffer;
 191   /*don't need work_buffer */
 192
 193   IplImage *in_ipl[3];
 194
 195   gboolean debug;
 196
 197   guint32 rng_seed;
 198
 199   guint32 frame_count;
 200 };
 201
 202 struct _GstSparrowClass
 203 {
 204   GstVideoFilterClass parent_class;
 205 };
 206
 207 GType gst_sparrow_get_type(void);
 208
 209
 210 GST_DEBUG_CATEGORY_EXTERN (sparrow_debug);
 211 #define GST_CAT_DEFAULT sparrow_debug
 212
 213 /* GstSparrow signals and args */
 214 enum
 215 {
 216   /* FILL ME */
 217   LAST_SIGNAL
 218 };
 219
 220 enum
 221 {
 222   PROP_0,
 223   PROP_CALIBRATE,
 224   PROP_DEBUG,
 225   PROP_RNG_SEED
 226 };
 227
 228 #define DEFAULT_PROP_CALIBRATE TRUE
 229 #define DEFAULT_PROP_DEBUG FALSE
 230 #define DEFAULT_PROP_RNG_SEED -1
 231
 232
 233
 234
 235
 236 /* GST_DISABLE_GST_DEBUG is set in gstreamer compilation. If it is set, we
 237    need our own debug channel. */
 238 #ifdef GST_DISABLE_GST_DEBUG
 239
 240 #undef GEST_DEBUG
 241
 242 static FILE *_sparrow_bloody_debug_flags = NULL;
 243 static void
 244 GST_DEBUG(const char *msg, ...){
 245   if (! _sparrow_bloody_debug_flags){
 246     _sparrow_bloody_debug_flags = fopen("/tmp/sparrow.log", "wb");
 247     if (! _sparrow_bloody_debug_flags){
 248       exit(1);
 249     }
 250   }
 251   va_list argp;
 252   va_start(argp, msg);
 253   vfprintf(_sparrow_bloody_debug_flags, msg, argp);
 254   va_end(argp);
 255   fflush(_sparrow_bloody_debug_flags);
 256 }
 257
 258 #define GST_ERROR        GST_DEBUG
 259 #define GST_WARNING      GST_DEBUG
 260 #define GST_INFO         GST_DEBUG
 261 #define GST_LOG          GST_DEBUG
 262 #define GST_FIXME        GST_DEBUG
 263
 264 #endif
 265 #define LOG_LINENO() GST_DEBUG("%-25s  line %4d \n", __func__, __LINE__ );
 266
 267
 268 G_END_DECLS
 269 #endif /* __GST_VIDEO_SPARROW_H__ */