Merge commit 'd3ea79e8a65ddad4da11813bb43c46701295f68c'

[ffmpeg] / libavcodec / jpeg2000.c

diff --git a/libavcodec/jpeg2000.c b/libavcodec/jpeg2000.c
index b333aad568403c7ad0e4f38dea73263f315213c4..b60e7709873b5decceeb3a9df53baf00ccc32448 100644 (file)
--- a/libavcodec/jpeg2000.c
+++ b/libavcodec/jpeg2000.c
@@ -171,22 +171,22 @@ void ff_jpeg2000_set_significance(Jpeg2000T1Context *t1, int x, int y,
 {
     x++;
     y++;
-    t1->flags[y][x] |= JPEG2000_T1_SIG;
+    t1->flags[(y) * t1->stride + x] |= JPEG2000_T1_SIG;
     if (negative) {
-        t1->flags[y][x + 1] |= JPEG2000_T1_SIG_W | JPEG2000_T1_SGN_W;
-        t1->flags[y][x - 1] |= JPEG2000_T1_SIG_E | JPEG2000_T1_SGN_E;
-        t1->flags[y + 1][x] |= JPEG2000_T1_SIG_N | JPEG2000_T1_SGN_N;
-        t1->flags[y - 1][x] |= JPEG2000_T1_SIG_S | JPEG2000_T1_SGN_S;
+        t1->flags[(y) * t1->stride + x + 1] |= JPEG2000_T1_SIG_W | JPEG2000_T1_SGN_W;
+        t1->flags[(y) * t1->stride + x - 1] |= JPEG2000_T1_SIG_E | JPEG2000_T1_SGN_E;
+        t1->flags[(y + 1) * t1->stride + x] |= JPEG2000_T1_SIG_N | JPEG2000_T1_SGN_N;
+        t1->flags[(y - 1) * t1->stride + x] |= JPEG2000_T1_SIG_S | JPEG2000_T1_SGN_S;
     } else {
-        t1->flags[y][x + 1] |= JPEG2000_T1_SIG_W;
-        t1->flags[y][x - 1] |= JPEG2000_T1_SIG_E;
-        t1->flags[y + 1][x] |= JPEG2000_T1_SIG_N;
-        t1->flags[y - 1][x] |= JPEG2000_T1_SIG_S;
+        t1->flags[(y) * t1->stride + x + 1] |= JPEG2000_T1_SIG_W;
+        t1->flags[(y) * t1->stride + x - 1] |= JPEG2000_T1_SIG_E;
+        t1->flags[(y + 1) * t1->stride + x] |= JPEG2000_T1_SIG_N;
+        t1->flags[(y - 1) * t1->stride + x] |= JPEG2000_T1_SIG_S;
     }
-    t1->flags[y + 1][x + 1] |= JPEG2000_T1_SIG_NW;
-    t1->flags[y + 1][x - 1] |= JPEG2000_T1_SIG_NE;
-    t1->flags[y - 1][x + 1] |= JPEG2000_T1_SIG_SW;
-    t1->flags[y - 1][x - 1] |= JPEG2000_T1_SIG_SE;
+    t1->flags[(y + 1) * t1->stride + x + 1] |= JPEG2000_T1_SIG_NW;
+    t1->flags[(y + 1) * t1->stride + x - 1] |= JPEG2000_T1_SIG_NE;
+    t1->flags[(y - 1) * t1->stride + x + 1] |= JPEG2000_T1_SIG_SW;
+    t1->flags[(y - 1) * t1->stride + x - 1] |= JPEG2000_T1_SIG_SE;
 }
 
 static const uint8_t lut_gain[2][4] = { { 0, 0, 0, 0 }, { 0, 1, 1, 2 } };
@@ -363,7 +363,7 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp,
                         /* Formula example for tbx_0 = ceildiv((tcx_0 - 2 ^ (declvl - 1) * x0_b) / declvl) */
                         band->coord[i][j] =
                             ff_jpeg2000_ceildivpow2(comp->coord_o[i][j] -
-                                                    (((bandno + 1 >> i) & 1) << declvl - 1),
+                                                    (((bandno + 1 >> i) & 1LL) << declvl - 1),
                                                     declvl);
                 /* TODO: Manage case of 3 band offsets here or
                  * in coding/decoding function? */
@@ -391,27 +391,29 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp,
                 Jpeg2000Prec *prec = band->prec + precno;
                 int nb_codeblocks;
 
+                prec->decoded_layers = 0;
+
                 /* TODO: Explain formula for JPEG200 DCINEMA. */
                 /* TODO: Verify with previous count of codeblocks per band */
 
                 /* Compute P_x0 */
-                prec->coord[0][0] = ((band->coord[0][0] >> reslevel->log2_prec_width) + precno % reslevel->num_precincts_x) *
+                prec->coord[0][0] = ((band->coord[0][0] >> log2_band_prec_width) + precno % reslevel->num_precincts_x) *
                                     (1 << log2_band_prec_width);
-                prec->coord[0][0] = FFMAX(prec->coord[0][0], band->coord[0][0]);
 
                 /* Compute P_y0 */
-                prec->coord[1][0] = ((band->coord[1][0] >> reslevel->log2_prec_height) + precno / reslevel->num_precincts_x) *
+                prec->coord[1][0] = ((band->coord[1][0] >> log2_band_prec_height) + precno / reslevel->num_precincts_x) *
                                     (1 << log2_band_prec_height);
-                prec->coord[1][0] = FFMAX(prec->coord[1][0], band->coord[1][0]);
 
                 /* Compute P_x1 */
                 prec->coord[0][1] = prec->coord[0][0] +
                                     (1 << log2_band_prec_width);
+                prec->coord[0][0] = FFMAX(prec->coord[0][0], band->coord[0][0]);
                 prec->coord[0][1] = FFMIN(prec->coord[0][1], band->coord[0][1]);
 
                 /* Compute P_y1 */
                 prec->coord[1][1] = prec->coord[1][0] +
                                     (1 << log2_band_prec_height);
+                prec->coord[1][0] = FFMAX(prec->coord[1][0], band->coord[1][0]);
                 prec->coord[1][1] = FFMIN(prec->coord[1][1], band->coord[1][1]);
 
                 prec->nb_codeblocks_width =