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FFmpeg/libavcodec/sbrdsp.h

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  1. /*

  2.  * Copyright (c) 2012 Mans Rullgard

  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_SBRDSP_H

  22. #define AVCODEC_SBRDSP_H

  23. 

  24. #include <stdint.h>

  25. #include "aac_defines.h"

  26. #include "libavutil/softfloat.h"

  27. 

  28. typedef struct SBRDSPContext {

  29.     void (*sum64x5)(INTFLOAT *z);

  30.     AAC_FLOAT (*sum_square)(INTFLOAT (*x)[2], int n);

  31.     void (*neg_odd_64)(INTFLOAT *x);

  32.     void (*qmf_pre_shuffle)(INTFLOAT *z);

  33.     void (*qmf_post_shuffle)(INTFLOAT W[32][2], const INTFLOAT *z);

  34.     void (*qmf_deint_neg)(INTFLOAT *v, const INTFLOAT *src);

  35.     void (*qmf_deint_bfly)(INTFLOAT *v, const INTFLOAT *src0, const INTFLOAT *src1);

  36.     void (*autocorrelate)(const INTFLOAT x[40][2], AAC_FLOAT phi[3][2][2]);

  37.     void (*hf_gen)(INTFLOAT (*X_high)[2], const INTFLOAT (*X_low)[2],

  38.                    const INTFLOAT alpha0[2], const INTFLOAT alpha1[2],

  39.                    INTFLOAT bw, int start, int end);

  40.     void (*hf_g_filt)(INTFLOAT (*Y)[2], const INTFLOAT (*X_high)[40][2],

  41.                       const AAC_FLOAT *g_filt, int m_max, intptr_t ixh);

  42.     void (*hf_apply_noise[4])(INTFLOAT (*Y)[2], const AAC_FLOAT *s_m,

  43.                               const AAC_FLOAT *q_filt, int noise,

  44.                               int kx, int m_max);

  45. } SBRDSPContext;

  46. 

  47. extern const INTFLOAT AAC_RENAME(ff_sbr_noise_table)[][2];

  48. 

  49. void AAC_RENAME(ff_sbrdsp_init)(SBRDSPContext *s);

  50. void ff_sbrdsp_init_arm(SBRDSPContext *s);

  51. void ff_sbrdsp_init_aarch64(SBRDSPContext *s);

  52. void ff_sbrdsp_init_x86(SBRDSPContext *s);

  53. void ff_sbrdsp_init_mips(SBRDSPContext *s);

  54. 

  55. #endif /* AVCODEC_SBRDSP_H */