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1 /*
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2 * Copyright (c) 2012 Mans Rullgard
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3 *
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4 * This file is part of Libav.
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5 *
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6 * Libav is free software; you can redistribute it and/or
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7 * modify it under the terms of the GNU Lesser General Public
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8 * License as published by the Free Software Foundation; either
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9 * version 2.1 of the License, or (at your option) any later version.
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10 *
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11 * Libav is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * Lesser General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU Lesser General Public
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17 * License along with Libav; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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19 */
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20
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21 #ifndef LIBAVCODEC_AACPSDSP_H
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22 #define LIBAVCODEC_AACPSDSP_H
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23
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24 #define PS_QMF_TIME_SLOTS 32
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25 #define PS_AP_LINKS 3
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26 #define PS_MAX_AP_DELAY 5
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27
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28 typedef struct PSDSPContext {
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29 void (*add_squares)(float *dst, const float (*src)[2], int n);
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30 void (*mul_pair_single)(float (*dst)[2], float (*src0)[2], float *src1,
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31 int n);
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32 void (*hybrid_analysis)(float (*out)[2], float (*in)[2],
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33 const float (*filter)[8][2],
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34 int stride, int n);
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35 void (*hybrid_analysis_ileave)(float (*out)[32][2], float L[2][38][64],
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36 int i, int len);
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37 void (*hybrid_synthesis_deint)(float out[2][38][64], float (*in)[32][2],
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38 int i, int len);
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39 void (*decorrelate)(float (*out)[2], float (*delay)[2],
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40 float (*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2],
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41 const float phi_fract[2], float (*Q_fract)[2],
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42 const float *transient_gain,
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43 float g_decay_slope,
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44 int len);
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45 void (*stereo_interpolate[2])(float (*l)[2], float (*r)[2],
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46 float h[2][4], float h_step[2][4],
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47 int len);
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48 } PSDSPContext;
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49
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50 void ff_psdsp_init(PSDSPContext *s);
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51 void ff_psdsp_init_arm(PSDSPContext *s);
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52 void ff_psdsp_init_mips(PSDSPContext *s);
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53
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54 #endif /* LIBAVCODEC_AACPSDSP_H */
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