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author | Sean Bartell <wingedtachikoma@gmail.com> | 2011-06-25 21:32:25 -0400 |
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committer | Nils Wallménius <nils@rockbox.org> | 2012-04-25 22:13:20 +0200 |
commit | f40bfc9267b13b54e6379dfe7539447662879d24 (patch) | |
tree | 9b20069d5e62809ff434061ad730096836f916f2 /lib/rbcodec/codecs/libcook/cook.h | |
parent | a0009907de7a0107d49040d8a180f140e2eff299 (diff) | |
download | rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.tar.gz rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.zip |
Add codecs to librbcodec.
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>
Diffstat (limited to 'lib/rbcodec/codecs/libcook/cook.h')
-rw-r--r-- | lib/rbcodec/codecs/libcook/cook.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libcook/cook.h b/lib/rbcodec/codecs/libcook/cook.h new file mode 100644 index 0000000000..fcb437a0e1 --- /dev/null +++ b/lib/rbcodec/codecs/libcook/cook.h | |||
@@ -0,0 +1,131 @@ | |||
1 | /* | ||
2 | * COOK compatible decoder | ||
3 | * Copyright (c) 2003 Sascha Sommer | ||
4 | * Copyright (c) 2005 Benjamin Larsson | ||
5 | * | ||
6 | * This file is taken from FFmpeg. | ||
7 | * | ||
8 | * FFmpeg is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU Lesser General Public | ||
10 | * License as published by the Free Software Foundation; either | ||
11 | * version 2.1 of the License, or (at your option) any later version. | ||
12 | * | ||
13 | * FFmpeg is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
16 | * Lesser General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU Lesser General Public | ||
19 | * License along with FFmpeg; if not, write to the Free Software | ||
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
21 | */ | ||
22 | #ifndef _COOK_H | ||
23 | #define _COOK_H | ||
24 | |||
25 | #include <inttypes.h> | ||
26 | #include "ffmpeg_get_bits.h" | ||
27 | #include "../librm/rm.h" | ||
28 | #include "cookdata_fixpoint.h" | ||
29 | |||
30 | #include "codeclib.h" | ||
31 | |||
32 | #if (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024) || (CONFIG_CPU == MCF5250) | ||
33 | /* PP5022/24, MCF5250 have large IRAM */ | ||
34 | #define IBSS_ATTR_COOK_LARGE_IRAM IBSS_ATTR | ||
35 | #define ICODE_ATTR_COOK_LARGE_IRAM ICODE_ATTR | ||
36 | #define ICONST_ATTR_COOK_LARGE_IRAM ICONST_ATTR | ||
37 | #define IBSS_ATTR_COOK_VLCBUF | ||
38 | #define ICODE_ATTR_COOK_DECODE | ||
39 | |||
40 | #elif defined(CPU_S5L870X) | ||
41 | /* S5L870X have even larger IRAM and it is faster to use ICODE_ATTR. */ | ||
42 | #define IBSS_ATTR_COOK_LARGE_IRAM IBSS_ATTR | ||
43 | #define ICODE_ATTR_COOK_LARGE_IRAM ICODE_ATTR | ||
44 | #define ICONST_ATTR_COOK_LARGE_IRAM ICONST_ATTR | ||
45 | #define IBSS_ATTR_COOK_VLCBUF IBSS_ATTR | ||
46 | #define ICODE_ATTR_COOK_DECODE ICODE_ATTR | ||
47 | |||
48 | #else | ||
49 | /* other CPUs IRAM is not large enough */ | ||
50 | #define IBSS_ATTR_COOK_LARGE_IRAM | ||
51 | #define ICODE_ATTR_COOK_LARGE_IRAM | ||
52 | #define ICONST_ATTR_COOK_LARGE_IRAM | ||
53 | #define IBSS_ATTR_COOK_VLCBUF | ||
54 | #define ICODE_ATTR_COOK_DECODE | ||
55 | |||
56 | #endif | ||
57 | |||
58 | typedef struct { | ||
59 | int *now; | ||
60 | int *previous; | ||
61 | } cook_gains; | ||
62 | |||
63 | typedef struct cook { | ||
64 | /* | ||
65 | * The following 2 functions provide the lowlevel arithmetic on | ||
66 | * the internal audio buffers. | ||
67 | */ | ||
68 | void (* scalar_dequant)(struct cook *q, int index, int quant_index, | ||
69 | int* subband_coef_index, int* subband_coef_sign, | ||
70 | REAL_T* mlt_p); | ||
71 | |||
72 | void (* interpolate) (struct cook *q, REAL_T* buffer, | ||
73 | int gain_index, int gain_index_next); | ||
74 | |||
75 | GetBitContext gb; | ||
76 | int frame_number; | ||
77 | int block_align; | ||
78 | int extradata_size; | ||
79 | /* stream data */ | ||
80 | int nb_channels; | ||
81 | int joint_stereo; | ||
82 | int bit_rate; | ||
83 | int sample_rate; | ||
84 | int samples_per_channel; | ||
85 | int samples_per_frame; | ||
86 | int subbands; | ||
87 | int log2_numvector_size; | ||
88 | int numvector_size; //1 << log2_numvector_size; | ||
89 | int js_subband_start; | ||
90 | int total_subbands; | ||
91 | int num_vectors; | ||
92 | int bits_per_subpacket; | ||
93 | int cookversion; | ||
94 | int mdct_nbits; /* is this the same as one of above? */ | ||
95 | /* states */ | ||
96 | int random_state; | ||
97 | |||
98 | /* gain buffers */ | ||
99 | cook_gains gains1; | ||
100 | cook_gains gains2; | ||
101 | int gain_1[9]; | ||
102 | int gain_2[9]; | ||
103 | int gain_3[9]; | ||
104 | int gain_4[9]; | ||
105 | |||
106 | /* VLC data */ | ||
107 | int js_vlc_bits; | ||
108 | VLC envelope_quant_index[13]; | ||
109 | VLC sqvh[7]; //scalar quantization | ||
110 | VLC ccpl; //channel coupling | ||
111 | |||
112 | /* generatable tables and related variables */ | ||
113 | int gain_size_factor; | ||
114 | |||
115 | /* data buffers */ | ||
116 | |||
117 | uint8_t decoded_bytes_buffer[1024] MEM_ALIGN_ATTR; | ||
118 | REAL_T mono_mdct_output[2048] MEM_ALIGN_ATTR; | ||
119 | REAL_T mono_previous_buffer1[1024] MEM_ALIGN_ATTR; | ||
120 | REAL_T mono_previous_buffer2[1024] MEM_ALIGN_ATTR; | ||
121 | REAL_T decode_buffer_1[1024] MEM_ALIGN_ATTR; | ||
122 | REAL_T decode_buffer_2[1024] MEM_ALIGN_ATTR; | ||
123 | /* static allocation for joint decode */ | ||
124 | REAL_T decode_buffer_0[1060] MEM_ALIGN_ATTR; | ||
125 | } COOKContext; | ||
126 | |||
127 | int cook_decode_init(RMContext *rmctx, COOKContext *q); | ||
128 | int cook_decode_frame(RMContext *rmctx,COOKContext *q, | ||
129 | int32_t *outbuffer, int *data_size, | ||
130 | const uint8_t *inbuffer, int buf_size); | ||
131 | #endif /*_COOK_H */ | ||