[FFmpeg-cvslog] avcodec/hq_hqa: Fix runtime error: left shift of negative value -207

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sat May  6 19:11:46 2017 +0200| [1283c4244767bd19918f355c31d702a94ee0cc1b] | committer: Michael Niedermayer

avcodec/hq_hqa: Fix runtime error: left shift of negative value -207

Fixes: 1375/clusterfuzz-testcase-minimized-6070134701555712

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=1283c4244767bd19918f355c31d702a94ee0cc1b
---

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

diff --git a/libavcodec/hq_hqa.c b/libavcodec/hq_hqa.c
index 5cf5fcfe2b..80dc6b5d40 100644
--- a/libavcodec/hq_hqa.c
+++ b/libavcodec/hq_hqa.c
@@ -68,11 +68,11 @@ static int hq_decode_block(HQContext *c, GetBitContext *gb, int16_t block[64],
     memset(block, 0, 64 * sizeof(*block));
 
     if (!is_hqa) {
-        block[0] = get_sbits(gb, 9) << 6;
+        block[0] = get_sbits(gb, 9) * 64;
         q = ff_hq_quants[qsel][is_chroma][get_bits(gb, 2)];
     } else {
         q = ff_hq_quants[qsel][is_chroma][get_bits(gb, 2)];
-        block[0] = get_sbits(gb, 9) << 6;
+        block[0] = get_sbits(gb, 9) * 64;
     }
 
     for (;;) {