elbg.c - OpenGrok cross reference for /third_party/ffmpeg/libavcodec/elbg.c

Lines Matching refs:points
36  * In the ELBG jargon, a cell is the set of points that are closest to a
55     int *points;
101         error += distance_limited(centroid, elbg->points + cells->index*elbg->dim, elbg->dim, INT_MAX);
150                       int *points,
167         idx = distance_limited(centroid[0], points + tempcell->index*dim, dim, INT_MAX)>=
168               distance_limited(centroid[1], points + tempcell->index*dim, dim, INT_MAX);
171             newcentroid[idx][i] += points[tempcell->index*dim + i];
178         int dist[2] = {distance_limited(centroid[0], points + tempcell->index*dim, dim, INT_MAX),
179                        distance_limited(centroid[1], points + tempcell->index*dim, dim, INT_MAX)};
202             min[i]=FFMIN(min[i], elbg->points[tempcell->index*elbg->dim + i]);
203             max[i]=FFMAX(max[i], elbg->points[tempcell->index*elbg->dim + i]);
215  * Add the points in the low utility cell to its closest cell. Split the high
216  * utility cell, putting the separated points in the (now empty) low utility
240         int idx = distance_limited(elbg->points + tempdata->index*elbg->dim,
242                   distance_limited(elbg->points + tempdata->index*elbg->dim,
300                 newcentroid[2][j] += elbg->points[tempcell->index*elbg->dim + j];
312     newerror += simple_lbg(elbg, elbg->dim, newcentroid, newutility, elbg->points,
349 static void do_elbg(ELBGContext *av_restrict elbg, int *points, int numpoints,
358     elbg->points = points;
372             int best_dist = distance_limited(elbg->points   + i * elbg->dim,
376                 int dist = distance_limited(elbg->points   + i * elbg->dim,
403                     elbg->points[i*elbg->dim + j];
419  * If not, it calls do_elbg for a (smaller) random sample of the points in
420  * points.
422 static void init_elbg(ELBGContext *av_restrict elbg, int *points, int *temp_points,
428         /* ELBG is very costly for a big number of points. So if we have a lot
432             memcpy(temp_points + i*dim, points + k*dim, dim * sizeof(*temp_points));
442             memcpy(elbg->codebook + i * dim, points + ((i*BIG_PRIME)%numpoints)*dim,
446 int avpriv_elbg_do(ELBGContext **elbgp, int *points, int dim, int numpoints,
494     init_elbg(elbg, points, elbg->temp_points, numpoints, max_steps);
495     do_elbg (elbg, points, numpoints, max_steps);