Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
Download
52868 views
Tweet
Share
Share
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_AACPSDSP_H

22
#define AVCODEC_AACPSDSP_H

23


24
#include "aac_defines.h"

25


26
#define PS_QMF_TIME_SLOTS 32

27
#define PS_AP_LINKS 3

28
#define PS_MAX_AP_DELAY 5

29


30
typedef struct PSDSPContext {

31
    void (*add_squares)(INTFLOAT *dst, const INTFLOAT (*src)[2], int n);

32
    void (*mul_pair_single)(INTFLOAT (*dst)[2], INTFLOAT (*src0)[2], INTFLOAT *src1,

33
                            int n);

34
    void (*hybrid_analysis)(INTFLOAT (*out)[2], INTFLOAT (*in)[2],

35
                            const INTFLOAT (*filter)[8][2],

36
                            int stride, int n);

37
    void (*hybrid_analysis_ileave)(INTFLOAT (*out)[32][2], INTFLOAT L[2][38][64],

38
                                   int i, int len);

39
    void (*hybrid_synthesis_deint)(INTFLOAT out[2][38][64], INTFLOAT (*in)[32][2],

40
                                   int i, int len);

41
    void (*decorrelate)(INTFLOAT (*out)[2], INTFLOAT (*delay)[2],

42
                        INTFLOAT (*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2],

43
                        const INTFLOAT phi_fract[2], const INTFLOAT (*Q_fract)[2],

44
                        const INTFLOAT *transient_gain,

45
                        INTFLOAT g_decay_slope,

46
                        int len);

47
    void (*stereo_interpolate[2])(INTFLOAT (*l)[2], INTFLOAT (*r)[2],

48
                                  INTFLOAT h[2][4], INTFLOAT h_step[2][4],

49
                                  int len);

50
} PSDSPContext;

51


52
void AAC_RENAME(ff_psdsp_init)(PSDSPContext *s);

53
void ff_psdsp_init_arm(PSDSPContext *s);

54
void ff_psdsp_init_mips(PSDSPContext *s);

55
void ff_psdsp_init_x86(PSDSPContext *s);

56


57
#endif /* AVCODEC_AACPSDSP_H */

58


59