avcodec/g2meet: Fix undefined NULL + 0

Affected the g2m4 FATE-test.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

diff --git a/libavcodec/g2meet.c b/libavcodec/g2meet.c
index 68b1b9dc74e090d94fc1303eeaa4da8013aa99d9..da910c1e59c787c1e1160510f040ddc250abe403 100644 (file)
--- a/libavcodec/g2meet.c
+++ b/libavcodec/g2meet.c
@@ -1029,7 +1029,7 @@ static int kempf_restore_buf(const uint8_t *src, int len,
     else if (npal <= 16) nb = 4;
     else                 nb = 8;
 
-    for (j = 0; j < height; j++, dst += stride, jpeg_tile += tile_stride) {
+    for (j = 0; j < height; j++, dst += stride, jpeg_tile = FF_PTR_ADD(jpeg_tile, tile_stride)) {
         if (get_bits(&gb, 8))
             continue;
         for (i = 0; i < width; i++) {