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ipmovie_probe: speedup by avoiding memcmp() call
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -529,8 +529,9 @@ static int ipmovie_probe(AVProbeData *p)
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uint8_t *b = p->buf;
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uint8_t *b_end = p->buf + p->buf_size - sizeof(signature);
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do {
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if (memcmp(b++, signature, sizeof(signature)) == 0)
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if (b[0] == signature[0] && memcmp(b, signature, sizeof(signature)) == 0)
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return AVPROBE_SCORE_MAX;
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b++;
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} while (b < b_end);
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return 0;
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