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Diffstat (limited to 'libavcodec/aacenc_quantization_misc.h')
-rw-r--r-- | libavcodec/aacenc_quantization_misc.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libavcodec/aacenc_quantization_misc.h b/libavcodec/aacenc_quantization_misc.h new file mode 100644 index 0000000..28676ca --- /dev/null +++ b/libavcodec/aacenc_quantization_misc.h @@ -0,0 +1,53 @@ +/* + * 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 */ |