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 #include <sys/time.h>
  30
  31 G_BEGIN_DECLS
  32 #define GST_TYPE_SPARROW \
  33   (gst_sparrow_get_type())
  34 #define GST_SPARROW(obj) \
  35   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SPARROW,GstSparrow))
  36 #define GST_SPARROW_CLASS(klass) \
  37   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SPARROW,GstSparrowClass))
  38 #define GST_IS_SPARROW(obj) \
  39   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SPARROW))
  40 #define GST_IS_SPARROW_CLASS(klass) \
  41   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SPARROW))
  42
  43 /*XXX could be run time option */
  44 #define USE_FULL_LUT 1
  45
  46 #define SPARROW_PPM_DEBUG 1
  47
  48 #define TIMER_LOG_FILE "/tmp/timer.log"
  49
  50 #include "sparrowconfig.h"
  51 #include "dSFMT/dSFMT.h"
  52 #include "cv.h"
  53
  54 #ifndef UNUSED
  55 #define UNUSED __attribute__ ((unused))
  56 #else
  57 #warning UNUSED is set
  58 #endif
  59
  60 /* the common recommendation for function visibility is to default to 'hidden'
  61    and specifically mark the unhidden ('default') ones, but this might muck
  62    with gstreamer macros, some of which declare functions, and most sparrow
  63    functions are static anyway, so it is simpler to whitelist visibility.
  64
  65    http://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#index-fvisibility-2135
  66
  67    (actually, it seems like all functions are invisible or static, except the
  68    ones that gstreamer makes in macros).
  69  */
  70 #ifndef INVISIBLE
  71 #define INVISIBLE __attribute__ ((visibility("hidden")))
  72 #else
  73 #warning INVISIBLE is set
  74 #endif
  75
  76
  77 typedef guint32 pix_t;
  78 #define PIXSIZE (sizeof(pix_t))
  79
  80 #define SPARROW_N_IPL_IN 3
  81
  82 //#define FAKE_OTHER_PROJECTION 1
  83
  84
  85 #define LINE_PERIOD 32
  86 #define H_LINE_OFFSET (LINE_PERIOD / 2)
  87 #define V_LINE_OFFSET (LINE_PERIOD / 2)
  88
  89
  90 typedef enum {
  91   SPARROW_STATUS_QUO = 0,
  92   SPARROW_INIT,
  93   SPARROW_FIND_SELF,
  94   SPARROW_FIND_SCREEN,
  95   SPARROW_FIND_EDGES,
  96   SPARROW_PLAY,
  97
  98
  99   SPARROW_NEXT_STATE /*magical last state: alias for next in sequence */
 100 } sparrow_state;
 101
 102 typedef enum {
 103   SPARROW_WHITE = 0,
 104   SPARROW_GREEN,
 105   SPARROW_MAGENTA,
 106
 107   SPARROW_LAST_COLOUR
 108 } sparrow_colour;
 109
 110
 111 typedef struct sparrow_format_s {
 112   gint32 width;
 113   gint32 height;
 114   guint32 pixcount;
 115   guint32 size;
 116
 117   guint32 rshift;
 118   guint32 gshift;
 119   guint32 bshift;
 120   guint32 rbyte;
 121   guint32 gbyte;
 122   guint32 bbyte;
 123   guint32 rmask;
 124   guint32 gmask;
 125   guint32 bmask;
 126   guint32 colours[3];
 127 } sparrow_format;
 128
 129
 130 typedef enum sparrow_axis_s {
 131   SPARROW_HORIZONTAL,
 132   SPARROW_VERTICAL,
 133 } sparrow_axis_t;
 134
 135
 136 typedef struct sparrow_map_path_s {
 137   int dx;
 138   int dy;
 139   int n;
 140 }sparrow_map_path_t;
 141
 142
 143 typedef struct sparrow_map_lut_s{
 144   guint16 x;
 145   guint16 y;
 146 } sparrow_map_lut_t;
 147
 148 typedef struct sparrow_frame_s {
 149   gint32 offset;
 150   guint32 jpeg_size;
 151   guint8 summary[48];
 152   gint32 successors[8];
 153 } sparrow_frame_t;
 154
 155 typedef struct sparrow_shared_s {
 156   guint8 *jpeg_blob;
 157   guint32 blob_size;
 158   sparrow_frame_t *index;
 159   guint32 image_count;
 160 } sparrow_shared_t;
 161
 162
 163 typedef struct _GstSparrow GstSparrow;
 164 typedef struct _GstSparrowClass GstSparrowClass;
 165
 166 /**
 167  * GstSparrow:
 168  *
 169  * Opaque data structure.
 170  */
 171 struct _GstSparrow
 172 {
 173   GstVideoFilter videofilter;
 174   sparrow_shared_t *shared; /* images, shared between the vaious instances */
 175   sparrow_format in;
 176   sparrow_format out;
 177
 178   /*some calibration modes have big unwieldy structs that attach here */
 179   void *helper_struct;
 180
 181   /* properties / command line options */
 182   gboolean debug;
 183   gboolean use_timer;
 184   guint32 rng_seed;
 185
 186   /* misc */
 187   dsfmt_t *dsfmt;  /*rng*/
 188
 189   /*state */
 190   sparrow_state state;
 191   gint32 countdown; /*intra-state timing*/
 192
 193   guint8 *debug_frame;    /* for constructing debug images */
 194   GstBuffer *in_buffer;
 195
 196   guint32 colour;
 197   guint32 frame_count;
 198
 199   const char *reload;
 200   const char *save;
 201
 202   /*debug timer */
 203   struct timeval timer_start;
 204   struct timeval timer_stop;
 205   FILE * timer_log;
 206
 207   /*calibration results */
 208   guint32 lag;
 209   guint8 *screenmask;
 210   /*full sized LUT */
 211   sparrow_map_lut_t *map_lut;
 212   /*for jpeg decompression*/
 213   struct jpeg_decompress_struct *cinfo;
 214   int jpeg_colourspace;
 215 };
 216
 217
 218 struct _GstSparrowClass
 219 {
 220   GstVideoFilterClass parent_class;
 221 };
 222
 223 GType gst_sparrow_get_type(void);
 224
 225
 226 GST_DEBUG_CATEGORY_EXTERN (sparrow_debug);
 227 #define GST_CAT_DEFAULT sparrow_debug
 228
 229 /* GstSparrow signals and args */
 230 enum
 231 {
 232   /* FILL ME */
 233   LAST_SIGNAL
 234 };
 235
 236 enum
 237 {
 238   PROP_0,
 239   PROP_DEBUG,
 240   PROP_TIMER,
 241   PROP_RNG_SEED,
 242   PROP_COLOUR,
 243   PROP_RELOAD,
 244   PROP_SAVE
 245 };
 246
 247 #define DEFAULT_PROP_CALIBRATE TRUE
 248 #define DEFAULT_PROP_DEBUG FALSE
 249 #define DEFAULT_PROP_TIMER FALSE
 250 #define DEFAULT_PROP_RNG_SEED -1
 251 #define DEFAULT_PROP_COLOUR SPARROW_GREEN
 252 #define DEFAULT_PROP_RELOAD ""
 253 #define DEFAULT_PROP_SAVE ""
 254
 255 #define QUOTE_(x) #x
 256 #define QUOTE(x) QUOTE_(x)
 257
 258 /*timing utility code */
 259 #define TIME_TRANSFORM 1
 260
 261 #define TIMER_START(sparrow) do{                        \
 262   if (sparrow->timer_log){                              \
 263     if ((sparrow)->timer_start.tv_sec){                 \
 264       GST_DEBUG("timer already running!\n");            \
 265     }                                                   \
 266     else {                                              \
 267       gettimeofday(&((sparrow)->timer_start), NULL);    \
 268     }                                                   \
 269   }                                                     \
 270   } while (0)
 271
 272 static inline void
 273 TIMER_STOP(GstSparrow *sparrow)
 274 {
 275   if (sparrow->timer_log){
 276     struct timeval *start = &(sparrow->timer_start);
 277     struct timeval *stop = &(sparrow->timer_stop);
 278     if (start->tv_sec == 0){
 279       GST_DEBUG("the timer isn't running!\n");
 280       return;
 281     }
 282     gettimeofday(stop, NULL);
 283     guint32 t = ((stop->tv_sec - start->tv_sec) * 1000000 +
 284         stop->tv_usec - start->tv_usec);
 285
 286 #if SPARROW_NOISY_DEBUG
 287     GST_DEBUG("took %u microseconds (%0.5f of a frame)\n",
 288         t, (double)t * (25.0 / 1000000.0));
 289 #endif
 290
 291     fprintf(sparrow->timer_log, "%d %6d\n", sparrow->state, t);
 292     fflush(sparrow->timer_log);
 293     start->tv_sec = 0; /* mark it as unused */
 294   }
 295 }
 296
 297 /* GST_DISABLE_GST_DEBUG is set in gstreamer compilation. If it is set, we
 298    need our own debug channel. */
 299 #ifdef GST_DISABLE_GST_DEBUG
 300
 301 #undef GST_DEBUG
 302
 303 static FILE *_sparrow_bloody_debug_flags = NULL;
 304 static void
 305 GST_DEBUG(const char *msg, ...){
 306   if (! _sparrow_bloody_debug_flags){
 307     _sparrow_bloody_debug_flags = fopen("/tmp/sparrow.log", "wb");
 308     if (! _sparrow_bloody_debug_flags){
 309       exit(1);
 310     }
 311   }
 312   va_list argp;
 313   va_start(argp, msg);
 314   vfprintf(_sparrow_bloody_debug_flags, msg, argp);
 315   va_end(argp);
 316   fflush(_sparrow_bloody_debug_flags);
 317 }
 318
 319 #define GST_ERROR        GST_DEBUG
 320 #define GST_WARNING      GST_DEBUG
 321 #define GST_INFO         GST_DEBUG
 322 #define GST_LOG          GST_DEBUG
 323 #define GST_FIXME        GST_DEBUG
 324
 325 #endif
 326 #define LOG_LINENO() GST_DEBUG("%-25s  line %4d \n", __func__, __LINE__ );
 327
 328
 329 G_END_DECLS
 330 #endif /* __GST_VIDEO_SPARROW_H__ */