Fake-Merge remote-tracking branch 'ffmpeg-mt/master'

1 files changed, 12 insertions, 7 deletions

diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index b293642..d4e538c 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -298,7 +298,7 @@ static int sse16_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
 
 /* draw the edges of width 'w' of an image of size width, height */
 //FIXME check that this is ok for mpeg4 interlaced
-static void draw_edges_c(uint8_t *buf, int wrap, int width, int height, int w)
+static void draw_edges_c(uint8_t *buf, int wrap, int width, int height, int w, int sides)
 {
     uint8_t *ptr, *last_line;
     int i;
@@ -306,8 +306,8 @@ static void draw_edges_c(uint8_t *buf, int wrap, int width, int height, int w)
     last_line = buf + (height - 1) * wrap;
     for(i=0;i<w;i++) {
         /* top and bottom */
-        memcpy(buf - (i + 1) * wrap, buf, width);
-        memcpy(last_line + (i + 1) * wrap, last_line, width);
+        if (sides&EDGE_TOP)    memcpy(buf - (i + 1) * wrap, buf, width);
+        if (sides&EDGE_BOTTOM) memcpy(last_line + (i + 1) * wrap, last_line, width);
     }
     /* left and right */
     ptr = buf;
@@ -318,10 +318,15 @@ static void draw_edges_c(uint8_t *buf, int wrap, int width, int height, int w)
     }
     /* corners */
     for(i=0;i<w;i++) {
-        memset(buf - (i + 1) * wrap - w, buf[0], w); /* top left */
-        memset(buf - (i + 1) * wrap + width, buf[width-1], w); /* top right */
-        memset(last_line + (i + 1) * wrap - w, last_line[0], w); /* top left */
-        memset(last_line + (i + 1) * wrap + width, last_line[width-1], w); /* top right */
+        if (sides&EDGE_TOP) {
+            memset(buf - (i + 1) * wrap - w, buf[0], w); /* top left */
+            memset(buf - (i + 1) * wrap + width, buf[width-1], w); /* top right */
+        }
+
+        if (sides&EDGE_BOTTOM) {
+            memset(last_line + (i + 1) * wrap - w, last_line[0], w); /* top left */
+            memset(last_line + (i + 1) * wrap + width, last_line[width-1], w); /* top right */
+        }
     }
 }