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https://github.com/FFmpeg/FFmpeg.git
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57d305207a
Up until now, there were four copies of
quantize_and_encode_band_cost_(ZERO|[SU]QUAD|[SU]PAIR|ESC|NONE|NOISE|STEREO)
(namely in aaccoder.o, aacenc_is.o, aacenc_ltp.o, aacenc_pred.o).
As 43b378a0d3 says, this is meant to
enable more optimizations.
Yet neither GCC nor Clang performed such optimizations: The functions
in the aforementioned files are not optimized according to
the specifics of the calls in the respective file. Therefore
duplicating them is a waste of space; this commit therefore stops doing
so. The remaining copy is placed into aaccoder.c (which is the only
place where the "round to zero" variant of quantize_and_encode_band()
is used, so that this can be completely internal to aaccoder.c).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
/*
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* AAC encoder quantizer
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* Copyright (C) 2015 Rostislav Pehlivanov
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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 quantizer
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* @author Rostislav Pehlivanov ( atomnuker gmail com )
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*/
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#ifndef AVCODEC_AACENC_QUANTIZATION_H
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#define AVCODEC_AACENC_QUANTIZATION_H
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#include <stddef.h>
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#include "aacenc.h"
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#include "put_bits.h"
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float ff_quantize_and_encode_band_cost(AACEncContext *s, PutBitContext *pb,
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const float *in, float *quant, const float *scaled,
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int size, int scale_idx, int cb,
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const float lambda, const float uplim,
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int *bits, float *energy);
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static inline float quantize_band_cost(struct AACEncContext *s, 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)
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{
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return ff_quantize_and_encode_band_cost(s, NULL, in, NULL, scaled, size, scale_idx,
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cb, lambda, uplim, bits, energy);
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}
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static inline int quantize_band_cost_bits(struct AACEncContext *s, 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)
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{
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int auxbits;
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ff_quantize_and_encode_band_cost(s, NULL, in, NULL, scaled, size, scale_idx,
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cb, 0.0f, uplim, &auxbits, energy);
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if (bits) {
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*bits = auxbits;
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}
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return auxbits;
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}
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#include "aacenc_quantization_misc.h"
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#endif /* AVCODEC_AACENC_QUANTIZATION_H */
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