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authorMichael Niedermayer <michaelni@gmx.at>2013-09-04 14:22:20 +0200
committerMichael Niedermayer <michaelni@gmx.at>2013-09-27 02:52:04 +0200
commitf66ecdb1b4de01e4afdc1e2c8640ce57ddec15ff (patch)
treea4dc571ba45549b75f9f45265215c6b297e08126
parentf6057c5a62ea88926020ba8b19399c10d3e87c3e (diff)
downloadffmpeg-f66ecdb1b4de01e4afdc1e2c8640ce57ddec15ff.tar.gz
avcodec: add emuedge_linesize_type
Currently all uses of the emu edge code as well as the code itself assume int linesize changing some but not changing all would introduce a security issue once all use this typedef a simple search and replace can be done to switch them all to ptrdiff_t Signed-off-by: Michael Niedermayer <michaelni@gmx.at> (cherry picked from commit 2ffead98ddd384f61cdf6b1cb3f36592f54cd34a) Conflicts: libavcodec/mpegvideo_common.h libavcodec/videodsp.h libavcodec/videodsp_template.c libavcodec/x86/videodsp_init.c
-rw-r--r--libavcodec/dsputil.h1
-rw-r--r--libavcodec/mpegvideo_common.h2
2 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index a44c146af9..dd2737ea8b 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -33,6 +33,7 @@
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
+typedef int emuedge_linesize_type;
//#define DEBUG
/* dct code */
diff --git a/libavcodec/mpegvideo_common.h b/libavcodec/mpegvideo_common.h
index debd6bae17..02b2bc1974 100644
--- a/libavcodec/mpegvideo_common.h
+++ b/libavcodec/mpegvideo_common.h
@@ -245,7 +245,7 @@ void mpeg_motion_internal(MpegEncContext *s,
uint8_t *ptr_y, *ptr_cb, *ptr_cr;
int dxy, uvdxy, mx, my, src_x, src_y,
uvsrc_x, uvsrc_y, v_edge_pos;
- ptrdiff_t uvlinesize, linesize;
+ emuedge_linesize_type uvlinesize, linesize;
#if 0
if(s->quarter_sample)