libavcodec/aacenc_quantization_misc.h
b629c67d
 /*
  * AAC encoder quantization
  * Copyright (C) 2015 Claudio Freire
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**
  * @file
  * AAC encoder quantization misc reusable function templates
  * @author Claudio Freire ( klaussfreire gmail com )
  */
 
 #ifndef AVCODEC_AACENC_QUANTIZATION_MISC_H
 #define AVCODEC_AACENC_QUANTIZATION_MISC_H
 
 static inline float quantize_band_cost_cached(struct AACEncContext *s, int w, int g, const float *in,
                                 const float *scaled, int size, int scale_idx,
                                 int cb, const float lambda, const float uplim,
                                 int *bits, float *energy, int rtz)
 {
     AACQuantizeBandCostCacheEntry *entry;
     av_assert1(scale_idx >= 0 && scale_idx < 256);
     entry = &s->quantize_band_cost_cache[scale_idx][w*16+g];
     if (entry->bits < 0 || entry->cb != cb || entry->rtz != rtz) {
         entry->rd = quantize_band_cost(s, in, scaled, size, scale_idx,
                                        cb, lambda, uplim, &entry->bits, &entry->energy, rtz);
         entry->cb = cb;
         entry->rtz = rtz;
     }
     if (bits)
         *bits = entry->bits;
     if (energy)
         *energy = entry->energy;
     return entry->rd;
 }
 
 #endif /* AVCODEC_AACENC_QUANTIZATION_MISC_H */