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j2kdec: fix 10l typo in initializing sgnd.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Michael Niedermayer authored on 2011/11/18 10:35:49
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@@ -227,7 +227,7 @@ static int get_siz(J2kDecoderContext *s)
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         uint8_t x = bytestream_get_byte(&s->buf);
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         s->cbps[i] = (x & 0x7f) + 1;
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         s->precision = FFMAX(s->cbps[i], s->precision);
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-        s->sgnd[i] = (x & 0x80) == 1;
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+        s->sgnd[i] = !!(x & 0x80);
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         s->cdx[i] = bytestream_get_byte(&s->buf);
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         s->cdy[i] = bytestream_get_byte(&s->buf);
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     }