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| /* | |
| * 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 ) | |
| */ | |
| 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); | |
| 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; | |
| } | |