Merge commit 'e1065924'

* commit 'e1065924':
  qtrle: add more checks against pixel_ptr being negative.

Conflicts:
	libavcodec/qtrle.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/qtrle.c

@@ -128,7 +128,7 @@ static inline void qtrle_decode_2n4bpp(QtrleContext *s, int row_ptr,
 
     while (lines_to_change--) {
         pixel_ptr = row_ptr + (num_pixels * (bytestream2_get_byte(&s->g) - 1));
-        CHECK_PIXEL_PTR(0);  /* make sure pixel_ptr is positive */
+        CHECK_PIXEL_PTR(0);
 
         while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {
             if (rle_code == 0) {
@@ -183,7 +183,7 @@ static void qtrle_decode_8bpp(QtrleContext *s, int row_ptr, int lines_to_change)
 
     while (lines_to_change--) {
         pixel_ptr = row_ptr + (4 * (bytestream2_get_byte(&s->g) - 1));
-        CHECK_PIXEL_PTR(0);  /* make sure pixel_ptr is positive */
+        CHECK_PIXEL_PTR(0);
 
         while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {
             if (rle_code == 0) {
@@ -233,7 +233,7 @@ static void qtrle_decode_16bpp(QtrleContext *s, int row_ptr, int lines_to_change
 
     while (lines_to_change--) {
         pixel_ptr = row_ptr + (bytestream2_get_byte(&s->g) - 1) * 2;
-        CHECK_PIXEL_PTR(0);  /* make sure pixel_ptr is positive */
+        CHECK_PIXEL_PTR(0);
 
         while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {
             if (rle_code == 0) {
@@ -277,7 +277,7 @@ static void qtrle_decode_24bpp(QtrleContext *s, int row_ptr, int lines_to_change
 
     while (lines_to_change--) {
         pixel_ptr = row_ptr + (bytestream2_get_byte(&s->g) - 1) * 3;
-        CHECK_PIXEL_PTR(0);  /* make sure pixel_ptr is positive */
+        CHECK_PIXEL_PTR(0);
 
         while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {
             if (rle_code == 0) {
@@ -324,7 +324,7 @@ static void qtrle_decode_32bpp(QtrleContext *s, int row_ptr, int lines_to_change
 
     while (lines_to_change--) {
         pixel_ptr = row_ptr + (bytestream2_get_byte(&s->g) - 1) * 4;
-        CHECK_PIXEL_PTR(0);  /* make sure pixel_ptr is positive */
+        CHECK_PIXEL_PTR(0);
 
         while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {
             if (rle_code == 0) {