[FFmpeg-cvslog] avcodec/dcadsp: Fix 2 runtime error: signed integer overflow: -1958094138 - 1078906344 cannot be represented in type 'int'

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Fri Mar  3 20:12:22 2017 +0100| [29638d4db90d5e3fc107c1beb40808f53cc7acaa] | committer: Michael Niedermayer

avcodec/dcadsp: Fix 2 runtime error: signed integer overflow: -1958094138 - 1078906344 cannot be represented in type 'int'

Fixes: 722/clusterfuzz-testcase-5711268868521984

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=29638d4db90d5e3fc107c1beb40808f53cc7acaa
---

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

diff --git a/libavcodec/dcadsp.c b/libavcodec/dcadsp.c
index 1503d00..4f1e933 100644
--- a/libavcodec/dcadsp.c
+++ b/libavcodec/dcadsp.c
@@ -347,7 +347,7 @@ static void dmix_scale_inv_c(int32_t *dst, int scale_inv, ptrdiff_t len)
         dst[i] = mul16(dst[i], scale_inv);
 }
 
-static void filter0(int32_t *dst, const int32_t *src, int32_t coeff, ptrdiff_t len)
+static void filter0(SUINT32 *dst, const int32_t *src, int32_t coeff, ptrdiff_t len)
 {
     int i;
 
@@ -355,7 +355,7 @@ static void filter0(int32_t *dst, const int32_t *src, int32_t coeff, ptrdiff_t l
         dst[i] -= mul22(src[i], coeff);
 }
 
-static void filter1(int32_t *dst, const int32_t *src, int32_t coeff, ptrdiff_t len)
+static void filter1(SUINT32 *dst, const int32_t *src, int32_t coeff, ptrdiff_t len)
 {
     int i;