From aac46e088d67a390489af686b846dea4987d8ffb Mon Sep 17 00:00:00 2001 From: Mans Rullgard Date: Thu, 12 Jan 2012 00:17:45 +0000 Subject: aacsbr: move some simdable loops to function pointers This prepares for assembly optimisations by moving the most time-consuming loops to functions called through pointers in a new context. Signed-off-by: Mans Rullgard --- libavcodec/sbrdsp.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 libavcodec/sbrdsp.h (limited to 'libavcodec/sbrdsp.h') diff --git a/libavcodec/sbrdsp.h b/libavcodec/sbrdsp.h new file mode 100644 index 0000000000..2f6cf1e4c5 --- /dev/null +++ b/libavcodec/sbrdsp.h @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2012 Mans Rullgard + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef LIBAVCODEC_SBRDSP_H +#define LIBAVCODEC_SBRDSP_H + +typedef struct SBRDSPContext { + void (*sum64x5)(float *z); + float (*sum_square)(float (*x)[2], int n); + void (*neg_odd_64)(float *x); + void (*qmf_pre_shuffle)(float *z); + void (*qmf_post_shuffle)(float W[32][2], const float *z); + void (*qmf_deint_neg)(float *v, const float *src); + void (*qmf_deint_bfly)(float *v, const float *src0, const float *src1); + void (*autocorrelate)(const float x[40][2], float phi[3][2][2]); + void (*hf_gen)(float (*X_high)[2], const float (*X_low)[2], + const float alpha0[2], const float alpha1[2], + float bw, int start, int end); + void (*hf_g_filt)(float (*Y)[2], const float (*X_high)[40][2], + const float *g_filt, int m_max, int ixh); + void (*hf_apply_noise[4])(float (*Y)[2], const float *s_m, + const float *q_filt, int noise, + int kx, int m_max); +} SBRDSPContext; + +extern const float ff_sbr_noise_table[][2]; + +void ff_sbrdsp_init(SBRDSPContext *s); + +#endif -- cgit v1.2.3