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avcodec/celp_math: Disable unused function
The code using ff_exp2 (namely ff_acelp_decode_gain_code) use it only if G729_BITEXACT is defined. So disable it if not. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
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@ -29,6 +29,7 @@
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#include "celp_math.h"
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#include "libavutil/common.h"
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#ifdef G729_BITEXACT
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static const uint16_t exp2a[]=
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{
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0, 1435, 2901, 4400, 5931, 7496, 9096, 10730,
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@ -54,6 +55,7 @@ int ff_exp2(uint16_t power)
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result= (result<<3) + ((result*exp2b[(power>>5)&31])>>17);
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return result + ((result*(power&31)*89)>>22);
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}
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#endif
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/**
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* Table used to compute log2(x)
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