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