kmvc: Clip pixel position to valid range

[ffmpeg] / libavcodec / h264pred_template.c

diff --git a/libavcodec/h264pred_template.c b/libavcodec/h264pred_template.c
index 8ae13b0df7898ac03919566c4ee60acedf9dcef8..e15c76c84995a1179aa7e45392158888063a5131 100644 (file)
--- a/libavcodec/h264pred_template.c
+++ b/libavcodec/h264pred_template.c
@@ -1131,7 +1131,7 @@ static void FUNCC(pred8x8l_horizontal_up)(uint8_t *_src, int has_topleft,
 #undef PL
 #undef SRC
 
-static void FUNCC(pred4x4_vertical_add)(uint8_t *_pix, const DCTELEM *_block,
+static void FUNCC(pred4x4_vertical_add)(uint8_t *_pix, int16_t *_block,
                                         ptrdiff_t stride)
 {
     int i;
@@ -1148,9 +1148,11 @@ static void FUNCC(pred4x4_vertical_add)(uint8_t *_pix, const DCTELEM *_block,
         pix++;
         block++;
     }
+
+    memset(_block, 0, sizeof(dctcoef) * 16);
 }
 
-static void FUNCC(pred4x4_horizontal_add)(uint8_t *_pix, const DCTELEM *_block,
+static void FUNCC(pred4x4_horizontal_add)(uint8_t *_pix, int16_t *_block,
                                           ptrdiff_t stride)
 {
     int i;
@@ -1166,9 +1168,11 @@ static void FUNCC(pred4x4_horizontal_add)(uint8_t *_pix, const DCTELEM *_block,
         pix+= stride;
         block+= 4;
     }
+
+    memset(_block, 0, sizeof(dctcoef) * 16);
 }
 
-static void FUNCC(pred8x8l_vertical_add)(uint8_t *_pix, const DCTELEM *_block,
+static void FUNCC(pred8x8l_vertical_add)(uint8_t *_pix, int16_t *_block,
                                          ptrdiff_t stride)
 {
     int i;
@@ -1189,9 +1193,11 @@ static void FUNCC(pred8x8l_vertical_add)(uint8_t *_pix, const DCTELEM *_block,
         pix++;
         block++;
     }
+
+    memset(_block, 0, sizeof(dctcoef) * 64);
 }
 
-static void FUNCC(pred8x8l_horizontal_add)(uint8_t *_pix, const DCTELEM *_block,
+static void FUNCC(pred8x8l_horizontal_add)(uint8_t *_pix, int16_t *_block,
                                            ptrdiff_t stride)
 {
     int i;
@@ -1211,10 +1217,12 @@ static void FUNCC(pred8x8l_horizontal_add)(uint8_t *_pix, const DCTELEM *_block,
         pix+= stride;
         block+= 8;
     }
+
+    memset(_block, 0, sizeof(dctcoef) * 64);
 }
 
 static void FUNCC(pred16x16_vertical_add)(uint8_t *pix, const int *block_offset,
-                                          const DCTELEM *block,
+                                          int16_t *block,
                                           ptrdiff_t stride)
 {
     int i;
@@ -1224,7 +1232,7 @@ static void FUNCC(pred16x16_vertical_add)(uint8_t *pix, const int *block_offset,
 
 static void FUNCC(pred16x16_horizontal_add)(uint8_t *pix,
                                             const int *block_offset,
-                                            const DCTELEM *block,
+                                            int16_t *block,
                                             ptrdiff_t stride)
 {
     int i;
@@ -1233,7 +1241,7 @@ static void FUNCC(pred16x16_horizontal_add)(uint8_t *pix,
 }
 
 static void FUNCC(pred8x8_vertical_add)(uint8_t *pix, const int *block_offset,
-                                        const DCTELEM *block, ptrdiff_t stride)
+                                        int16_t *block, ptrdiff_t stride)
 {
     int i;
     for(i=0; i<4; i++)
@@ -1241,7 +1249,7 @@ static void FUNCC(pred8x8_vertical_add)(uint8_t *pix, const int *block_offset,
 }
 
 static void FUNCC(pred8x16_vertical_add)(uint8_t *pix, const int *block_offset,
-                                         const DCTELEM *block, ptrdiff_t stride)
+                                         int16_t *block, ptrdiff_t stride)
 {
     int i;
     for(i=0; i<4; i++)
@@ -1251,7 +1259,7 @@ static void FUNCC(pred8x16_vertical_add)(uint8_t *pix, const int *block_offset,
 }
 
 static void FUNCC(pred8x8_horizontal_add)(uint8_t *pix, const int *block_offset,
-                                          const DCTELEM *block,
+                                          int16_t *block,
                                           ptrdiff_t stride)
 {
     int i;
@@ -1261,7 +1269,7 @@ static void FUNCC(pred8x8_horizontal_add)(uint8_t *pix, const int *block_offset,
 
 static void FUNCC(pred8x16_horizontal_add)(uint8_t *pix,
                                            const int *block_offset,
-                                           const DCTELEM *block, ptrdiff_t stride)
+                                           int16_t *block, ptrdiff_t stride)
 {
     int i;
     for(i=0; i<4; i++)