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avcodec/eatqi: Fix runtime error: signed integer overflow: 4466147 * 1075 cannot be represented in type 'int' 

Fixes: 1443/clusterfuzz-testcase-minimized-4826998612426752

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-10 19:02:05 +02:00
parent 6ea4287893
commit a8de60ba27
1 changed files with 1 additions and 1 deletions
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libavcodec/eatqi.c
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@ -112,7 +112,7 @@ static inline void tqi_idct_put(AVCodecContext *avctx, AVFrame *frame,
static void tqi_calculate_qtable(TqiContext *t, int quant) static void tqi_calculate_qtable(TqiContext *t, int quant)
{ {
const int qscale = (215 - 2*quant)*5; const int64_t qscale = (215 - 2*quant)*5;
int i; int i;
t->intra_matrix[0] = (ff_inv_aanscales[0] * ff_mpeg1_default_intra_matrix[0]) >> 11; t->intra_matrix[0] = (ff_inv_aanscales[0] * ff_mpeg1_default_intra_matrix[0]) >> 11;