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mlpdsp.h
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1 /*
2  * MLP codec common header file
3  * Copyright (c) 2007-2008 Ian Caulfield
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVCODEC_MLPDSP_H
23 #define AVCODEC_MLPDSP_H
24 
25 #include <stdint.h>
26 #include "mlp.h"
27 
28 void ff_mlp_rematrix_channel(int32_t *samples,
29  const int32_t *coeffs,
30  const uint8_t *bypassed_lsbs,
31  const int8_t *noise_buffer,
32  int index,
33  unsigned int dest_ch,
34  uint16_t blockpos,
35  unsigned int maxchan,
36  int matrix_noise_shift,
37  int access_unit_size_pow2,
38  int32_t mask);
39 
40 int32_t ff_mlp_pack_output(int32_t lossless_check_data,
41  uint16_t blockpos,
42  int32_t (*sample_buffer)[MAX_CHANNELS],
43  void *data,
44  uint8_t *ch_assign,
45  int8_t *output_shift,
46  uint8_t max_matrix_channel,
47  int is32);
48 
49 typedef struct MLPDSPContext {
50  void (*mlp_filter_channel)(int32_t *state, const int32_t *coeff,
51  int firorder, int iirorder,
52  unsigned int filter_shift, int32_t mask,
53  int blocksize, int32_t *sample_buffer);
54  void (*mlp_rematrix_channel)(int32_t *samples,
55  const int32_t *coeffs,
56  const uint8_t *bypassed_lsbs,
57  const int8_t *noise_buffer,
58  int index,
59  unsigned int dest_ch,
60  uint16_t blockpos,
61  unsigned int maxchan,
62  int matrix_noise_shift,
63  int access_unit_size_pow2,
64  int32_t mask);
65  int32_t (*(*mlp_select_pack_output)(uint8_t *ch_assign,
66  int8_t *output_shift,
67  uint8_t max_matrix_channel,
68  int is32))(int32_t, uint16_t, int32_t (*)[], void *, uint8_t*, int8_t *, uint8_t, int);
69  int32_t (*mlp_pack_output)(int32_t lossless_check_data,
70  uint16_t blockpos,
71  int32_t (*sample_buffer)[MAX_CHANNELS],
72  void *data,
73  uint8_t *ch_assign,
74  int8_t *output_shift,
75  uint8_t max_matrix_channel,
76  int is32);
77 } MLPDSPContext;
78 
79 void ff_mlpdsp_init(MLPDSPContext *c);
80 void ff_mlpdsp_init_arm(MLPDSPContext *c);
81 void ff_mlpdsp_init_x86(MLPDSPContext *c);
82 
83 #endif /* AVCODEC_MLPDSP_H */
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