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avformat/nistspheredec: initialize header_size to -1
Fixes use of uninitialized memory This also avoids the need to check the scanf() return as the subsequent check catches it Fixes: msan_uninit-mem_7f712e4dc173_7414_nist_ulaw.nist Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -36,7 +36,7 @@ static int nist_read_header(AVFormatContext *s)
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{
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char buffer[32], coding[32] = "pcm", format[32] = "01";
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int bps = 0, be = 0;
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int32_t header_size;
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int32_t header_size = -1;
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AVStream *st;
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st = avformat_new_stream(s, NULL);
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