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_frame_s {
 144   gint32 offset;
 145   guint32 jpeg_size;
 146   guint8 summary[48];
 147   gint32 successors[8];
 148 } sparrow_frame_t;
 149
 150 typedef struct sparrow_shared_s {
 151   guint8 *jpeg_blob;
 152   guint32 blob_size;
 153   sparrow_frame_t *index;
 154   guint32 image_count;
 155 } sparrow_shared_t;
 156
 157
 158 typedef struct _GstSparrow GstSparrow;
 159 typedef struct _GstSparrowClass GstSparrowClass;
 160
 161 /**
 162  * GstSparrow:
 163  *
 164  * Opaque data structure.
 165  */
 166 struct _GstSparrow
 167 {
 168   GstVideoFilter videofilter;
 169   sparrow_shared_t *shared; /* images, shared between the vaious instances */
 170   sparrow_format in;
 171   sparrow_format out;
 172
 173   /*some calibration modes have big unwieldy structs that attach here */
 174   void *helper_struct;
 175
 176   /* properties / command line options */
 177   gboolean debug;
 178   gboolean use_timer;
 179   guint32 rng_seed;
 180
 181   /* misc */
 182   dsfmt_t *dsfmt;  /*rng*/
 183
 184   /*state */
 185   sparrow_state state;
 186   gint32 countdown; /*intra-state timing*/
 187
 188   guint8 *debug_frame;    /* for constructing debug images */
 189   GstBuffer *in_buffer;
 190
 191   guint32 colour;
 192   guint32 frame_count;
 193
 194   const char *reload;
 195   const char *save;
 196
 197   /*debug timer */
 198   struct timeval timer_start;
 199   struct timeval timer_stop;
 200   FILE * timer_log;
 201
 202   /*calibration results */
 203   guint32 lag;
 204   guint8 *screenmask;
 205   /*full sized LUT */
 206   guint32 *map_lut;
 207   /*for jpeg decompression*/
 208   struct jpeg_decompress_struct *cinfo;
 209   int jpeg_colourspace;
 210 };
 211
 212
 213 struct _GstSparrowClass
 214 {
 215   GstVideoFilterClass parent_class;
 216 };
 217
 218 GType gst_sparrow_get_type(void);
 219
 220
 221 GST_DEBUG_CATEGORY_EXTERN (sparrow_debug);
 222 #define GST_CAT_DEFAULT sparrow_debug
 223
 224 /* GstSparrow signals and args */
 225 enum
 226 {
 227   /* FILL ME */
 228   LAST_SIGNAL
 229 };
 230
 231 enum
 232 {
 233   PROP_0,
 234   PROP_DEBUG,
 235   PROP_TIMER,
 236   PROP_RNG_SEED,
 237   PROP_COLOUR,
 238   PROP_RELOAD,
 239   PROP_SAVE
 240 };
 241
 242 #define DEFAULT_PROP_CALIBRATE TRUE
 243 #define DEFAULT_PROP_DEBUG FALSE
 244 #define DEFAULT_PROP_TIMER FALSE
 245 #define DEFAULT_PROP_RNG_SEED -1
 246 #define DEFAULT_PROP_COLOUR SPARROW_GREEN
 247 #define DEFAULT_PROP_RELOAD ""
 248 #define DEFAULT_PROP_SAVE ""
 249
 250 #define QUOTE_(x) #x
 251 #define QUOTE(x) QUOTE_(x)
 252
 253 /*timing utility code */
 254 #define TIME_TRANSFORM 1
 255
 256 #define TIMER_START(sparrow) do{                        \
 257   if (sparrow->timer_log){                              \
 258     if ((sparrow)->timer_start.tv_sec){                 \
 259       GST_DEBUG("timer already running!\n");            \
 260     }                                                   \
 261     else {                                              \
 262       gettimeofday(&((sparrow)->timer_start), NULL);    \
 263     }                                                   \
 264   }                                                     \
 265   } while (0)
 266
 267 static inline void
 268 TIMER_STOP(GstSparrow *sparrow)
 269 {
 270   if (sparrow->timer_log){
 271     struct timeval *start = &(sparrow->timer_start);
 272     struct timeval *stop = &(sparrow->timer_stop);
 273     if (start->tv_sec == 0){
 274       GST_DEBUG("the timer isn't running!\n");
 275       return;
 276     }
 277     gettimeofday(stop, NULL);
 278     guint32 t = ((stop->tv_sec - start->tv_sec) * 1000000 +
 279         stop->tv_usec - start->tv_usec);
 280
 281 #if SPARROW_NOISY_DEBUG
 282     GST_DEBUG("took %u microseconds (%0.5f of a frame)\n",
 283         t, (double)t * (25.0 / 1000000.0));
 284 #endif
 285
 286     fprintf(sparrow->timer_log, "%d %6d\n", sparrow->state, t);
 287     fflush(sparrow->timer_log);
 288     start->tv_sec = 0; /* mark it as unused */
 289   }
 290 }
 291
 292 /* GST_DISABLE_GST_DEBUG is set in gstreamer compilation. If it is set, we
 293    need our own debug channel. */
 294 #ifdef GST_DISABLE_GST_DEBUG
 295
 296 #undef GST_DEBUG
 297
 298 static FILE *_sparrow_bloody_debug_flags = NULL;
 299 static void
 300 GST_DEBUG(const char *msg, ...){
 301   if (! _sparrow_bloody_debug_flags){
 302     _sparrow_bloody_debug_flags = fopen("/tmp/sparrow.log", "wb");
 303     if (! _sparrow_bloody_debug_flags){
 304       exit(1);
 305     }
 306   }
 307   va_list argp;
 308   va_start(argp, msg);
 309   vfprintf(_sparrow_bloody_debug_flags, msg, argp);
 310   va_end(argp);
 311   fflush(_sparrow_bloody_debug_flags);
 312 }
 313
 314 #define GST_ERROR        GST_DEBUG
 315 #define GST_WARNING      GST_DEBUG
 316 #define GST_INFO         GST_DEBUG
 317 #define GST_LOG          GST_DEBUG
 318 #define GST_FIXME        GST_DEBUG
 319
 320 #endif
 321 #define LOG_LINENO() GST_DEBUG("%-25s  line %4d \n", __func__, __LINE__ );
 322
 323
 324 G_END_DECLS
 325 #endif /* __GST_VIDEO_SPARROW_H__ */