ffmpeg | branch: release/2.4 | Andreas Cadhalpun
<andreas.cadhal...@googlemail.com> | Sun Jun 7 18:50:43 2015 +0200|
[9da5ba1f57a4185d97edac743b42215319307b8c] | committer: Michael Niedermayer
vp9: change type of tile_size from unsigned to int64_t
Otherwise the check 'tile_size < size' treats a negative size as
unsigned, causing the check to pass. This subsequently leads to
segmentation faults.
This was originally fixed as part of Libav commit 72ca83, so the
original author is one of the following developers:
Anton Khirnov <an...@khirnov.net>
Diego Biurrun <di...@biurrun.de>
Luca Barbato <lu_z...@gentoo.org>
Martin Storsjö <mar...@martin.st>
Reviewed-by: Ronald S. Bultje <rsbul...@gmail.com>
Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
(cherry picked from commit b18eac7ff22332c9344769af15f7b245dd13cc64)
Signed-off-by: Michael Niedermayer <michae...@gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9da5ba1f57a4185d97edac743b42215319307b8c
---
libavcodec/vp9.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/vp9.c b/libavcodec/vp9.c
index 8861cc0..3be17c0 100644
--- a/libavcodec/vp9.c
+++ b/libavcodec/vp9.c
@@ -3841,7 +3841,7 @@ static int vp9_decode_frame(AVCodecContext *ctx, void
*frame,
tile_row, s->tiling.log2_tile_rows, s->sb_rows);
if (s->pass != 2) {
for (tile_col = 0; tile_col < s->tiling.tile_cols; tile_col++)
{
- unsigned tile_size;
+ int64_t tile_size;
if (tile_col == s->tiling.tile_cols - 1 &&
tile_row == s->tiling.tile_rows - 1) {
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