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+/* Copyright (c) 2007-2008 CSIRO
+ Copyright (c) 2007-2009 Xiph.Org Foundation
+ Written by Jean-Marc Valin */
+/*
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef RATE_H
+#define RATE_H
+
+#define MAX_PSEUDO 40
+#define LOG_MAX_PSEUDO 6
+
+#define CELT_MAX_PULSES 128
+
+#define MAX_FINE_BITS 8
+
+#define FINE_OFFSET 21
+#define QTHETA_OFFSET 4
+#define QTHETA_OFFSET_TWOPHASE 16
+
+#include "cwrs.h"
+#include "modes.h"
+
+void compute_pulse_cache(CELTMode *m, int LM);
+
+static OPUS_INLINE int get_pulses(int i)
+{
+ return i<8 ? i : (8 + (i&7)) << ((i>>3)-1);
+}
+
+static OPUS_INLINE int bits2pulses(const CELTMode *m, int band, int LM, int bits)
+{
+ int i;
+ int lo, hi;
+ const unsigned char *cache;
+
+ LM++;
+ cache = m->cache.bits + m->cache.index[LM*m->nbEBands+band];
+
+ lo = 0;
+ hi = cache[0];
+ bits--;
+ for (i=0;i<LOG_MAX_PSEUDO;i++)
+ {
+ int mid = (lo+hi+1)>>1;
+ /* OPT: Make sure this is implemented with a conditional move */
+ if ((int)cache[mid] >= bits)
+ hi = mid;
+ else
+ lo = mid;
+ }
+ if (bits- (lo == 0 ? -1 : (int)cache[lo]) <= (int)cache[hi]-bits)
+ return lo;
+ else
+ return hi;
+}
+
+static OPUS_INLINE int pulses2bits(const CELTMode *m, int band, int LM, int pulses)
+{
+ const unsigned char *cache;
+
+ LM++;
+ cache = m->cache.bits + m->cache.index[LM*m->nbEBands+band];
+ return pulses == 0 ? 0 : cache[pulses]+1;
+}
+
+/** Compute the pulse allocation, i.e. how many pulses will go in each
+ * band.
+ @param m mode
+ @param offsets Requested increase or decrease in the number of bits for
+ each band
+ @param total Number of bands
+ @param pulses Number of pulses per band (returned)
+ @return Total number of bits allocated
+*/
+int compute_allocation(const CELTMode *m, int start, int end, const int *offsets, const int *cap, int alloc_trim, int *intensity, int *dual_stero,
+ opus_int32 total, opus_int32 *balance, int *pulses, int *ebits, int *fine_priority, int C, int LM, ec_ctx *ec, int encode, int prev, int signalBandwidth);
+
+#endif