aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* AAC Spectral Band Replication decoding functions
* Copyright (c) 2012 Christophe Gisquet <christophe.gisquet@gmail.com>
*
* 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
*/
#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/x86/cpu.h"
#include "libavcodec/sbrdsp.h"
float ff_sbr_sum_square_sse(float (*x)[2], int n);
void ff_sbr_sum64x5_sse(float *z);
void ff_sbr_hf_g_filt_sse(float (*Y)[2], const float (*X_high)[40][2],
const float *g_filt, int m_max, intptr_t ixh);
void ff_sbr_hf_gen_sse(float (*X_high)[2], const float (*X_low)[2],
const float alpha0[2], const float alpha1[2],
float bw, int start, int end);
void ff_sbr_neg_odd_64_sse(float *z);
void ff_sbr_qmf_post_shuffle_sse(float W[32][2], const float *z);
void ff_sbr_qmf_deint_bfly_sse(float *v, const float *src0, const float *src1);
void ff_sbr_qmf_deint_bfly_sse2(float *v, const float *src0, const float *src1);
void ff_sbr_qmf_pre_shuffle_sse2(float *z);
void ff_sbr_hf_apply_noise_0_sse2(float (*Y)[2], const float *s_m,
const float *q_filt, int noise,
int kx, int m_max);
void ff_sbr_hf_apply_noise_1_sse2(float (*Y)[2], const float *s_m,
const float *q_filt, int noise,
int kx, int m_max);
void ff_sbr_hf_apply_noise_2_sse2(float (*Y)[2], const float *s_m,
const float *q_filt, int noise,
int kx, int m_max);
void ff_sbr_hf_apply_noise_3_sse2(float (*Y)[2], const float *s_m,
const float *q_filt, int noise,
int kx, int m_max);
void ff_sbr_qmf_deint_neg_sse(float *v, const float *src);
void ff_sbr_autocorrelate_sse (const float x[40][2], float phi[3][2][2]);
void ff_sbr_autocorrelate_sse3(const float x[40][2], float phi[3][2][2]);
av_cold void ff_sbrdsp_init_x86(SBRDSPContext *s)
{
int cpu_flags = av_get_cpu_flags();
if (EXTERNAL_SSE(cpu_flags)) {
s->neg_odd_64 = ff_sbr_neg_odd_64_sse;
s->sum_square = ff_sbr_sum_square_sse;
s->sum64x5 = ff_sbr_sum64x5_sse;
s->hf_g_filt = ff_sbr_hf_g_filt_sse;
s->hf_gen = ff_sbr_hf_gen_sse;
s->qmf_post_shuffle = ff_sbr_qmf_post_shuffle_sse;
s->qmf_deint_bfly = ff_sbr_qmf_deint_bfly_sse;
s->qmf_deint_neg = ff_sbr_qmf_deint_neg_sse;
s->autocorrelate = ff_sbr_autocorrelate_sse;
}
if (EXTERNAL_SSE2(cpu_flags)) {
s->qmf_deint_bfly = ff_sbr_qmf_deint_bfly_sse2;
s->qmf_pre_shuffle = ff_sbr_qmf_pre_shuffle_sse2;
s->hf_apply_noise[0] = ff_sbr_hf_apply_noise_0_sse2;
s->hf_apply_noise[1] = ff_sbr_hf_apply_noise_1_sse2;
s->hf_apply_noise[2] = ff_sbr_hf_apply_noise_2_sse2;
s->hf_apply_noise[3] = ff_sbr_hf_apply_noise_3_sse2;
}
if (EXTERNAL_SSE3(cpu_flags)) {
s->autocorrelate = ff_sbr_autocorrelate_sse3;
}
}
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