[FFmpeg-cvslog] avcodec/jpeg2000dwt: assert that mod == 0 for encoding

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Tue Jun 16 21:22:40 2015 +0200| [1125c71fd761c6677d6d6f6615f963cc485b31a2] | committer: Michael Niedermayer

avcodec/jpeg2000dwt: assert that mod == 0 for encoding

We are missing the handling of some special cases for this.
These cases should be unused and there should be no reason
to ever use them unless some spec dictates their use

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1125c71fd761c6677d6d6f6615f963cc485b31a2
---

 libavcodec/jpeg2000dwt.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavcodec/jpeg2000dwt.c b/libavcodec/jpeg2000dwt.c
index dba8393..225b08f 100644
--- a/libavcodec/jpeg2000dwt.c
+++ b/libavcodec/jpeg2000dwt.c
@@ -25,6 +25,7 @@
  * Discrete wavelet transform
  */
 
+#include "libavutil/avassert.h"
 #include "libavutil/common.h"
 #include "libavutil/mem.h"
 #include "jpeg2000dwt.h"
@@ -109,6 +110,7 @@ static void dwt_encode53(DWTContext *s, int *t)
             lp;
         int *l;
 
+        av_assert1(!mh && !mv);
         // HOR_SD
         l = line + mh;
         for (lp = 0; lp < lv; lp++){
@@ -179,6 +181,7 @@ static void dwt_encode97_float(DWTContext *s, float *t)
             lp;
         float *l;
 
+        av_assert1(!mh && !mv);
         // HOR_SD
         l = line + mh;
         for (lp = 0; lp < lv; lp++){
@@ -250,6 +253,8 @@ static void dwt_encode97_int(DWTContext *s, int *t)
             lp;
         int *l;
 
+        av_assert1(!mh && !mv);
+
         // HOR_SD
         l = line + mh;
         for (lp = 0; lp < lv; lp++){