[FFmpeg-cvslog] ividsp: zero pitch so as not to overread

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Mar 31 15:52:13 2012 +0200| [12038ab16da2f9e007c5f3a5bacc19e61f8edfd8] | committer: Michael Niedermayer

ividsp: zero pitch so as not to overread

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=12038ab16da2f9e007c5f3a5bacc19e61f8edfd8
---

 libavcodec/ivi_dsp.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/libavcodec/ivi_dsp.c b/libavcodec/ivi_dsp.c
index 0ee7035..263c06a 100644
--- a/libavcodec/ivi_dsp.c
+++ b/libavcodec/ivi_dsp.c
@@ -55,6 +55,9 @@ void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
     b3_ptr = plane->bands[3].buf;
 
     for (y = 0; y < plane->height; y += 2) {
+
+        if (y+2 >= plane->height)
+            pitch= 0;
         /* load storage variables with values */
         if (num_bands > 0) {
             b0_1 = b0_ptr[0];