1 /* 2 * copyright (c) 2008 Michael Niedermayer <michaelni@gmx.at> 3 * 4 * This file is part of FFmpeg. 5 * 6 * FFmpeg is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * FFmpeg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with FFmpeg; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21 #ifndef AVCODEC_SYNTH_FILTER_H 22 #define AVCODEC_SYNTH_FILTER_H 23 24 #include "fft.h" 25 #include "dcadct.h" 26 27 typedef struct SynthFilterContext { 28 void (*synth_filter_float)(FFTContext *imdct, 29 float *synth_buf_ptr, int *synth_buf_offset, 30 float synth_buf2[32], const float window[512], 31 float out[32], const float in[32], 32 float scale); 33 void (*synth_filter_float_64)(FFTContext *imdct, 34 float *synth_buf_ptr, int *synth_buf_offset, 35 float synth_buf2[64], const float window[1024], 36 float out[64], const float in[64], float scale); 37 void (*synth_filter_fixed)(DCADCTContext *imdct, 38 int32_t *synth_buf_ptr, int *synth_buf_offset, 39 int32_t synth_buf2[32], const int32_t window[512], 40 int32_t out[32], const int32_t in[32]); 41 void (*synth_filter_fixed_64)(DCADCTContext *imdct, 42 int32_t *synth_buf_ptr, int *synth_buf_offset, 43 int32_t synth_buf2[64], const int32_t window[1024], 44 int32_t out[64], const int32_t in[64]); 45 } SynthFilterContext; 46 47 void ff_synth_filter_init(SynthFilterContext *c); 48 void ff_synth_filter_init_aarch64(SynthFilterContext *c); 49 void ff_synth_filter_init_arm(SynthFilterContext *c); 50 void ff_synth_filter_init_x86(SynthFilterContext *c); 51 52 #endif /* AVCODEC_SYNTH_FILTER_H */ 53