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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 */ |