1 /* (C) 2007-2008 Jean-Marc Valin, CSIRO
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35 #define MAX_PULSES 128
36 #define LOG_MAX_PULSES 7
40 #define BITOVERFLOW 30000
42 static inline int bits2pulses(const CELTMode *m, const celt_int16_t *cache, int bits)
49 /* Instead of using the "bisection condition" we use a fixed number of
50 iterations because it should be faster */
51 /*while (hi-lo != 1)*/
52 for (i=0;i<LOG_MAX_PULSES;i++)
55 /* OPT: Make sure this is implemented with a conditional move */
56 if (cache[mid] >= bits)
61 if (bits-cache[lo] <= cache[hi]-bits)
67 /** Computes a cache of the pulses->bits mapping in each band */
68 celt_int16_t **compute_alloc_cache(CELTMode *m, int C);
70 /** Compute the pulse allocation, i.e. how many pulses will go in each
73 @param offsets Requested increase or decrease in the number of bits for
75 @param total Number of bands
76 @param pulses Number of pulses per band (returned)
77 @return Total number of bits allocated
79 void compute_allocation(const CELTMode *m, int *offsets, const int *stereo_mode, int total, int *pulses, int *ebits);