[FFmpeg-cvslog] indeo3: fix out of picture write.

Michael Niedermayer git at videolan.org
Sat Mar 24 03:30:42 CET 2012


ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Mar 24 02:05:50 2012 +0100| [ba775a54bc2136ec5da85385a923b05ee6fab159] | committer: Michael Niedermayer

indeo3: fix out of picture write.

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=ba775a54bc2136ec5da85385a923b05ee6fab159
---

 libavcodec/indeo3.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/indeo3.c b/libavcodec/indeo3.c
index 7038cac..b6ae2ea 100644
--- a/libavcodec/indeo3.c
+++ b/libavcodec/indeo3.c
@@ -419,8 +419,8 @@ static int decode_cell_data(Cell *cell, uint8_t *block, uint8_t *ref_block,
     blk_row_offset = (row_offset << (2 + v_zoom)) - (cell->width << 2);
     line_offset    = v_zoom ? row_offset : 0;
 
-    for (y = 0; y < cell->height; is_first_row = 0, y += 1 + v_zoom) {
-        for (x = 0; x < cell->width; x += 1 + h_zoom) {
+    for (y = 0; y + v_zoom < cell->height; is_first_row = 0, y += 1 + v_zoom) {
+        for (x = 0; x + h_zoom < cell->width; x += 1 + h_zoom) {
             ref = ref_block;
             dst = block;
 



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