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avcodec/utils: Fix overflow in get_bit_rates computations

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Fixes: 129ca3e28d73af7b1e24a9d4118e7a2d/signal_sigabrt_7ffff6ae7cc9_836_762b310fc3ef6087bd7771e5d8e90b9b.asf

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-12-05 13:15:01 +01:00
parent 2de8bfd2ef
commit 15d14ce47c
1 changed files with 1 additions and 1 deletions
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2
libavcodec/utils.c
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@ -1141,7 +1141,7 @@ static int64_t get_bit_rate(AVCodecContext *ctx)
break;
case AVMEDIA_TYPE_AUDIO:
bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
break;
default:
bit_rate = 0;