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avcodec/takdec: Fix runtime error: left shift of negative value -42

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Fixes: 1635/clusterfuzz-testcase-minimized-4992749856096256

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 99c4c76cfbc4ae56dc8c37f5fab02f88f6b2cb48)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-17 00:44:36 +02:00
parent 28d7c43d0f
commit 07ca48cecf
1 changed files with 1 additions and 1 deletions
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libavcodec/takdec.c
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@ -899,7 +899,7 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
for (chan = 0; chan < avctx->channels; chan++) {
int32_t *samples = (int32_t *)frame->extended_data[chan];
for (i = 0; i < s->nb_samples; i++)
samples[i] <<= 8;
samples[i] *= 1 << 8;
}
break;
}