/*

* 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->generation != s->quantize_band_cost_cache_generation || 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;

entry->generation = s->quantize_band_cost_cache_generation;

}

if (bits)

*bits = entry->bits;

if (energy)

*energy = entry->energy;

return entry->rd;

}

#endif /* AVCODEC_AACENC_QUANTIZATION_MISC_H */