common/visualize.c

   1 /*****************************************************************************
   2  * x264: h264 encoder
   3  *****************************************************************************
   4  * Copyright (C) 2005 Tuukka Toivonen <tuukkat@ee.oulu.fi>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
  19  *****************************************************************************/
  20
  21 /*
  22  * Some explanation of the symbols used:
  23  * Red/pink: intra block
  24  * Blue: inter block
  25  * Green: skip block
  26  * Yellow: B-block (not visualized properly yet)
  27  *
  28  * Motion vectors have black dot at their target (ie. at the MB center),
  29  * instead of arrowhead. The black dot is enclosed in filled diamond with radius
  30  * depending on reference frame number (one frame back = zero width, normal case).
  31  *
  32  * The intra blocks have generally lines drawn perpendicular
  33  * to the prediction direction, so for example, if there is a pink block
  34  * with horizontal line at the top of it, it is interpolated by assuming
  35  * luma to be vertically constant.
  36  * DC predicted blocks have both horizontal and vertical lines,
  37  * pink blocks with a diagonal line are predicted using the planar function.
  38  */
  39
  40 #include "common.h"
  41 #include "visualize.h"
  42 #include "display.h"
  43
  44 typedef struct {
  45     int     i_type;
  46     int     i_partition;
  47     int     i_sub_partition[4];
  48     int     i_intra16x16_pred_mode;
  49     int     intra4x4_pred_mode[4][4];
  50     int8_t  ref[2][4][4];                  /* [list][y][x] */
  51     int16_t mv[2][4][4][2];                /* [list][y][x][mvxy] */
  52 } visualize_t;
  53
  54 /* {{{ [fold] char *get_string(const stringlist_t *sl, int entries, int code) */
  55 /* Return string from stringlist corresponding to the given code */
  56 #define GET_STRING(sl, code) get_string((sl), sizeof(sl)/sizeof(*(sl)), code)
  57
  58 typedef struct {
  59     int code;
  60     char *string;
  61 } stringlist_t;
  62
  63 static char *get_string(const stringlist_t *sl, int entries, int code)
  64 {
  65     int i;
  66
  67     for (i=0; i<entries; i++) {
  68         if (sl[i].code==code) break;
  69     }
  70     return (i>=entries) ? "?" : sl[i].string;
  71 }
  72 /* }}} */
  73 /* {{{ [fold] void mv(int x0, int y0, int16_t dmv[2], int ref, int zoom, char *col) */
  74 /* Plot motion vector */
  75 static void mv(int x0, int y0, int16_t dmv[2], int ref, int zoom, char *col)
  76 {
  77     int dx = dmv[0];
  78     int dy = dmv[1];
  79     int i;
  80
  81     dx = (dx * zoom + 2) >> 2;                     /* Quarter pixel accurate MVs */
  82     dy = (dy * zoom + 2) >> 2;
  83     disp_line(0, x0, y0, x0+dx, y0+dy);
  84     for (i=1; i<ref; i++){
  85         disp_line(0, x0, y0-i, x0+i, y0);
  86         disp_line(0, x0+i, y0, x0, y0+i);
  87         disp_line(0, x0, y0+i, x0-i, y0);
  88         disp_line(0, x0-i, y0, x0, y0-i);
  89     }
  90     disp_setcolor("black");
  91     disp_point(0, x0, y0);
  92     disp_setcolor(col);
  93 }
  94 /* }}} */
  95
  96 /* {{{ [fold] void x264_visualize_init( x264_t *h ) */
  97 void x264_visualize_init( x264_t *h )
  98 {
  99     int mb = h->sps->i_mb_width * h->sps->i_mb_height;
 100     h->visualize = x264_malloc(mb * sizeof(visualize_t));
 101 }
 102 /* }}} */
 103 /* {{{ [fold] void x264_visualize_mb( x264_t *h ) */
 104 void x264_visualize_mb( x264_t *h )
 105 {
 106     visualize_t *v = (visualize_t*)h->visualize + h->mb.i_mb_xy;
 107     int i, l, x, y;
 108
 109     /* Save all data for the MB what we need for drawing the visualization */
 110     v->i_type = h->mb.i_type;
 111     v->i_partition = h->mb.i_partition;
 112     for (i=0; i<4; i++) v->i_sub_partition[i] = h->mb.i_sub_partition[i];
 113     for (y=0; y<4; y++) for (x=0; x<4; x++)
 114         v->intra4x4_pred_mode[y][x] = h->mb.cache.intra4x4_pred_mode[X264_SCAN8_0+y*8+x];
 115     for (l=0; l<2; l++) for (y=0; y<4; y++) for (x=0; x<4; x++) {
 116         for (i=0; i<2; i++) {
 117             v->mv[l][y][x][i] = h->mb.cache.mv[l][X264_SCAN8_0+y*8+x][i];
 118         }
 119         v->ref[l][y][x] = h->mb.cache.ref[l][X264_SCAN8_0+y*8+x];
 120     }
 121     v->i_intra16x16_pred_mode = h->mb.i_intra16x16_pred_mode;
 122 }
 123 /* }}} */
 124 /* {{{ [fold] void x264_visualize_close( x264_t *h ) */
 125 void x264_visualize_close( x264_t *h )
 126 {
 127     x264_free(h->visualize);
 128 }
 129 /* }}} */
 130 /* {{{ [fold] void x264_visualize_show( x264_t *h ) */
 131 /* Display visualization (block types, MVs) of the encoded frame */
 132 /* FIXME: B-type MBs not handled yet properly */
 133 void x264_visualize_show( x264_t *h )
 134 {
 135     int mb_xy;
 136     static const stringlist_t mb_types[] = {
 137         /* Block types marked as NULL will not be drawn */
 138         { I_4x4   , "red" },
 139         { I_8x8   , "#ff5640" },
 140         { I_16x16 , "#ff8060" },
 141         { I_PCM   , "violet" },
 142         { P_L0    , "SlateBlue" },
 143         { P_8x8   , "blue" },
 144         { P_SKIP  , "green" },
 145         { B_DIRECT, "yellow" },
 146         { B_L0_L0 , "yellow" },
 147         { B_L0_L1 , "yellow" },
 148         { B_L0_BI , "yellow" },
 149         { B_L1_L0 , "yellow" },
 150         { B_L1_L1 , "yellow" },
 151         { B_L1_BI , "yellow" },
 152         { B_BI_L0 , "yellow" },
 153         { B_BI_L1 , "yellow" },
 154         { B_BI_BI , "yellow" },
 155         { B_8x8   , "yellow" },
 156         { B_SKIP  , "yellow" },
 157     };
 158
 159     static const int waitkey = 1;     /* Wait for enter after each frame */
 160     static const int drawbox = 1;     /* Draw box around each block */
 161     static const int borders = 0;     /* Display extrapolated borders outside frame */
 162     static const int zoom = 2;        /* Zoom factor */
 163
 164     static const int pad = 32;
 165     uint8_t *const frame = h->fdec->plane[0];
 166     const int width = h->param.i_width;
 167     const int height = h->param.i_height;
 168     const int stride = h->fdec->i_stride[0];
 169
 170     if (borders) {
 171         disp_gray_zoom(0, frame - pad*stride - pad, width+2*pad, height+2*pad, stride, "fdec", zoom);
 172     } else {
 173         disp_gray_zoom(0, frame, width, height, stride, "fdec", zoom);
 174     }
 175
 176     for( mb_xy = 0; mb_xy < h->sps->i_mb_width * h->sps->i_mb_height; mb_xy++ )
 177     {
 178         visualize_t *const v = (visualize_t*)h->visualize + mb_xy;
 179         const int mb_y = mb_xy / h->sps->i_mb_width;
 180         const int mb_x = mb_xy % h->sps->i_mb_width;
 181         char *const col = GET_STRING(mb_types, v->i_type);
 182         int x = mb_x*16*zoom;
 183         int y = mb_y*16*zoom;
 184         int l = 0;
 185         unsigned int i, j;
 186
 187         if (col==NULL) continue;
 188         if (borders) {
 189             x += pad*zoom;
 190             y += pad*zoom;
 191         }
 192         disp_setcolor(col);
 193         if (drawbox) disp_rect(0, x, y, x+16*zoom-1, y+16*zoom-1);
 194
 195         if (v->i_type==P_L0 || v->i_type==P_8x8 || v->i_type==P_SKIP) {
 196
 197             /* Predicted (inter) mode, with motion vector */
 198             if (v->i_partition==D_16x16 || v->i_type==P_SKIP) {
 199                 mv(x+8*zoom, y+8*zoom, v->mv[l][0][0], v->ref[l][0][0], zoom, col);
 200             }
 201             if (v->i_partition==D_16x8) {
 202                 if (drawbox) disp_rect(0, x, y, x+16*zoom, y+8*zoom);
 203                 mv(x+8*zoom, y+4*zoom, v->mv[l][0][0], v->ref[l][0][0], zoom, col);
 204                 if (drawbox) disp_rect(0, x, y+8*zoom, x+16*zoom, y+16*zoom);
 205                 mv(x+8*zoom, y+12*zoom, v->mv[l][2][0], v->ref[l][2][0], zoom, col);
 206             }
 207             if (v->i_partition==D_8x16) {
 208                 if (drawbox) disp_rect(0, x,          y, x+8*zoom,  y+16*zoom);
 209                 mv(x+4*zoom, y+8*zoom, v->mv[l][0][0], v->ref[l][0][0], zoom, col);
 210                 if (drawbox) disp_rect(0, x+8*zoom,   y, x+16*zoom, y+16*zoom);
 211                 mv(x+12*zoom, y+8*zoom, v->mv[l][0][2], v->ref[l][0][2], zoom, col);
 212             }
 213             if (v->i_partition==D_8x8) {
 214                 for (i=0; i<2; i++) for (j=0; j<2; j++) {
 215                     int sp = v->i_sub_partition[i*2+j];
 216                     const int x0 = x + j*8*zoom;
 217                     const int y0 = y + i*8*zoom;
 218                     l = x264_mb_partition_listX_table[0][sp] ? 0 : 1; /* FIXME: not tested if this works */
 219                     if (IS_SUB8x8(sp)) {
 220                         if (drawbox) disp_rect(0, x0, y0, x0+8*zoom, y0+8*zoom);
 221                         mv(x0+4*zoom, y0+4*zoom, v->mv[l][2*i][2*j], v->ref[l][2*i][2*j], zoom, col);
 222                     }
 223                     if (IS_SUB8x4(sp)) {
 224                         if (drawbox) disp_rect(0, x0, y0, x0+8*zoom, y0+4*zoom);
 225                         if (drawbox) disp_rect(0, x0, y0+4*zoom, x0+8*zoom, y0+8*zoom);
 226                         mv(x0+4*zoom, y0+2*zoom, v->mv[l][2*i][2*j], v->ref[l][2*i][2*j], zoom, col);
 227                         mv(x0+4*zoom, y0+6*zoom, v->mv[l][2*i+1][2*j], v->ref[l][2*i+1][2*j], zoom, col);
 228                     }
 229                     if (IS_SUB4x8(sp)) {
 230                         if (drawbox) disp_rect(0, x0, y0, x0+4*zoom, y0+8*zoom);
 231                         if (drawbox) disp_rect(0, x0+4*zoom, y0, x0+8*zoom, y0+8*zoom);
 232                         mv(x0+2*zoom, y0+4*zoom, v->mv[l][2*i][2*j], v->ref[l][2*i][2*j], zoom, col);
 233                         mv(x0+6*zoom, y0+4*zoom, v->mv[l][2*i][2*j+1], v->ref[l][2*i][2*j+1], zoom, col);
 234                     }
 235                     if (IS_SUB4x4(sp)) {
 236                         if (drawbox) disp_rect(0, x0, y0, x0+4*zoom, y0+4*zoom);
 237                         if (drawbox) disp_rect(0, x0+4*zoom, y0, x0+8*zoom, y0+4*zoom);
 238                         if (drawbox) disp_rect(0, x0, y0+4*zoom, x0+4*zoom, y0+8*zoom);
 239                         if (drawbox) disp_rect(0, x0+4*zoom, y0+4*zoom, x0+8*zoom, y0+8*zoom);
 240                         mv(x0+2*zoom, y0+2*zoom, v->mv[l][2*i][2*j], v->ref[l][2*i][2*j], zoom, col);
 241                         mv(x0+6*zoom, y0+2*zoom, v->mv[l][2*i][2*j+1], v->ref[l][2*i][2*j+1], zoom, col);
 242                         mv(x0+2*zoom, y0+6*zoom, v->mv[l][2*i+1][2*j], v->ref[l][2*i+1][2*j], zoom, col);
 243                         mv(x0+6*zoom, y0+6*zoom, v->mv[l][2*i+1][2*j+1], v->ref[l][2*i+1][2*j+1], zoom, col);
 244                     }
 245                 }
 246             }
 247         }
 248
 249         if (IS_INTRA(v->i_type) || v->i_type==I_PCM) {
 250             /* Intra coded */
 251             if (v->i_type==I_16x16) {
 252                 switch (v->i_intra16x16_pred_mode) {
 253                 case I_PRED_16x16_V:
 254                     disp_line(0, x+2*zoom, y+2*zoom, x+14*zoom, y+2*zoom);
 255                     break;
 256                 case I_PRED_16x16_H:
 257                     disp_line(0, x+2*zoom, y+2*zoom, x+2*zoom, y+14*zoom);
 258                     break;
 259                 case I_PRED_16x16_DC:
 260                 case I_PRED_16x16_DC_LEFT:
 261                 case I_PRED_16x16_DC_TOP:
 262                 case I_PRED_16x16_DC_128:
 263                     disp_line(0, x+2*zoom, y+2*zoom, x+14*zoom, y+2*zoom);
 264                     disp_line(0, x+2*zoom, y+2*zoom, x+2*zoom, y+14*zoom);
 265                     break;
 266                 case I_PRED_16x16_P:
 267                     disp_line(0, x+2*zoom, y+2*zoom, x+8*zoom, y+8*zoom);
 268                     break;
 269                 }
 270             }
 271             if (v->i_type==I_4x4 || v->i_type==I_8x8) {
 272                 const int di = v->i_type==I_8x8 ? 2 : 1;
 273                 const int zoom2 = zoom * di;
 274                 for (i=0; i<4; i+=di) for (j=0; j<4; j+=di) {
 275                     const int x0 = x + j*4*zoom;
 276                     const int y0 = y + i*4*zoom;
 277                     if (drawbox) disp_rect(0, x0, y0, x0+4*zoom2, y0+4*zoom2);
 278                     switch (v->intra4x4_pred_mode[i][j]) {
 279                     case I_PRED_4x4_V:          /* Vertical */
 280                         disp_line(0, x0+0*zoom2, y0+1*zoom2, x0+4*zoom2, y0+1*zoom2);
 281                         break;
 282                     case I_PRED_4x4_H:          /* Horizontal */
 283                         disp_line(0, x0+1*zoom2, y0+0*zoom2, x0+1*zoom2, y0+4*zoom2);
 284                         break;
 285                     case I_PRED_4x4_DC:         /* DC, average from top and left sides */
 286                     case I_PRED_4x4_DC_LEFT:
 287                     case I_PRED_4x4_DC_TOP:
 288                     case I_PRED_4x4_DC_128:
 289                         disp_line(0, x0+1*zoom2, y0+1*zoom2, x0+4*zoom2, y0+1*zoom2);
 290                         disp_line(0, x0+1*zoom2, y0+1*zoom2, x0+1*zoom2, y0+4*zoom2);
 291                         break;
 292                     case I_PRED_4x4_DDL:        /* Topright-bottomleft */
 293                         disp_line(0, x0+0*zoom2, y0+0*zoom2, x0+4*zoom2, y0+4*zoom2);
 294                         break;
 295                     case I_PRED_4x4_DDR:        /* Topleft-bottomright */
 296                         disp_line(0, x0+0*zoom2, y0+4*zoom2, x0+4*zoom2, y0+0*zoom2);
 297                         break;
 298                     case I_PRED_4x4_VR:         /* Mix of topleft-bottomright and vertical */
 299                         disp_line(0, x0+0*zoom2, y0+2*zoom2, x0+4*zoom2, y0+1*zoom2);
 300                         break;
 301                     case I_PRED_4x4_HD:         /* Mix of topleft-bottomright and horizontal */
 302                         disp_line(0, x0+2*zoom2, y0+0*zoom2, x0+1*zoom2, y0+4*zoom2);
 303                         break;
 304                     case I_PRED_4x4_VL:         /* Mix of topright-bottomleft and vertical */
 305                         disp_line(0, x0+0*zoom2, y0+1*zoom2, x0+4*zoom2, y0+2*zoom2);
 306                         break;
 307                     case I_PRED_4x4_HU:         /* Mix of topright-bottomleft and horizontal */
 308                         disp_line(0, x0+1*zoom2, y0+0*zoom2, x0+2*zoom2, y0+4*zoom2);
 309                         break;
 310                     }
 311                 }
 312             }
 313         }
 314     }
 315
 316     disp_sync();
 317     if (waitkey) getchar();
 318 }
 319 /* }}} */
 320
 321 //EOF