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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/libmusepack/internal.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/libmusepack/internal.h')
-rw-r--r-- | lib/rbcodec/codecs/libmusepack/internal.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libmusepack/internal.h b/lib/rbcodec/codecs/libmusepack/internal.h new file mode 100644 index 0000000000..897e6a7b17 --- /dev/null +++ b/lib/rbcodec/codecs/libmusepack/internal.h | |||
@@ -0,0 +1,123 @@ | |||
1 | /* | ||
2 | Copyright (c) 2005-2009, The Musepack Development Team | ||
3 | All rights reserved. | ||
4 | |||
5 | Redistribution and use in source and binary forms, with or without | ||
6 | modification, are permitted provided that the following conditions are | ||
7 | met: | ||
8 | |||
9 | * Redistributions of source code must retain the above copyright | ||
10 | notice, this list of conditions and the following disclaimer. | ||
11 | |||
12 | * Redistributions in binary form must reproduce the above | ||
13 | copyright notice, this list of conditions and the following | ||
14 | disclaimer in the documentation and/or other materials provided | ||
15 | with the distribution. | ||
16 | |||
17 | * Neither the name of the The Musepack Development Team nor the | ||
18 | names of its contributors may be used to endorse or promote | ||
19 | products derived from this software without specific prior | ||
20 | written permission. | ||
21 | |||
22 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
23 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
24 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
25 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
26 | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
27 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
28 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
29 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
30 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
31 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
32 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
33 | */ | ||
34 | /// \file internal.h | ||
35 | /// Definitions and structures used only internally by the libmpcdec. | ||
36 | #ifndef _MPCDEC_INTERNAL_H_ | ||
37 | #define _MPCDEC_INTERNAL_H_ | ||
38 | #ifdef WIN32 | ||
39 | #pragma once | ||
40 | #endif | ||
41 | #ifdef __cplusplus | ||
42 | extern "C" { | ||
43 | #endif | ||
44 | |||
45 | #include "mpcdec.h" | ||
46 | |||
47 | /* rockbox: not used, rockbox's swap32 is used now. | ||
48 | /// Big/little endian 32 bit byte swapping routine. | ||
49 | static mpc_inline | ||
50 | mpc_uint32_t mpc_swap32(mpc_uint32_t val) { | ||
51 | return (((val & 0xFF000000) >> 24) | ((val & 0x00FF0000) >> 8) | ||
52 | | ((val & 0x0000FF00) << 8) | ((val & 0x000000FF) << 24)); | ||
53 | } | ||
54 | */ | ||
55 | typedef struct mpc_block_t { | ||
56 | char key[2]; // block key | ||
57 | mpc_uint64_t size; // block size minus the block header size | ||
58 | } mpc_block; | ||
59 | |||
60 | #define MAX_FRAME_SIZE 4352 | ||
61 | #define DEMUX_BUFFER_SIZE (32768 - MAX_FRAME_SIZE) // need some space as sand box | ||
62 | |||
63 | struct mpc_demux_t { | ||
64 | mpc_reader * r; | ||
65 | mpc_decoder * d; | ||
66 | mpc_streaminfo si; | ||
67 | |||
68 | // buffer | ||
69 | mpc_uint8_t *buffer; | ||
70 | mpc_size_t bytes_total; | ||
71 | mpc_bits_reader bits_reader; | ||
72 | mpc_int32_t block_bits; /// bits remaining in current audio block | ||
73 | mpc_uint_t block_frames; /// frames remaining in current audio block | ||
74 | |||
75 | // seeking | ||
76 | mpc_seek_t * seek_table; | ||
77 | mpc_uint_t seek_pwr; /// distance between 2 frames in seek_table = 2^seek_pwr | ||
78 | mpc_uint32_t seek_table_size; /// used size in seek_table | ||
79 | |||
80 | // chapters | ||
81 | /* rockbox: not used | ||
82 | mpc_seek_t chap_pos; /// supposed position of the first chapter block | ||
83 | mpc_int_t chap_nb; /// number of chapters (-1 if unknown, 0 if no chapter) | ||
84 | mpc_chap_info * chap; /// chapters position and tag | ||
85 | */ | ||
86 | }; | ||
87 | |||
88 | /** | ||
89 | * checks if a block key is valid | ||
90 | * @param key the two caracters key to check | ||
91 | * @return MPC_STATUS_FAIL if the key is invalid, MPC_STATUS_OK else | ||
92 | */ | ||
93 | static mpc_inline mpc_status mpc_check_key(char * key) | ||
94 | { | ||
95 | if (key[0] < 65 || key[0] > 90 || key[1] < 65 || key[1] > 90) | ||
96 | return MPC_STATUS_FAIL; | ||
97 | return MPC_STATUS_OK; | ||
98 | } | ||
99 | |||
100 | /// helper functions used by multiple files | ||
101 | mpc_uint32_t mpc_random_int(mpc_decoder *d); // in synth_filter.c | ||
102 | void mpc_decoder_init_quant(mpc_decoder *d, MPC_SAMPLE_FORMAT factor); // in requant.c | ||
103 | void mpc_decoder_synthese_filter_float(mpc_decoder *d, MPC_SAMPLE_FORMAT* OutData, mpc_int_t channels); | ||
104 | unsigned long mpc_crc32(unsigned char *buf, int len); | ||
105 | |||
106 | // streaminfo.c | ||
107 | mpc_status streaminfo_read_header_sv8(mpc_streaminfo* si, | ||
108 | const mpc_bits_reader * r_in, | ||
109 | mpc_size_t block_size); | ||
110 | mpc_status streaminfo_read_header_sv7(mpc_streaminfo* si, mpc_bits_reader * r_in); | ||
111 | void streaminfo_encoder_info(mpc_streaminfo* si, const mpc_bits_reader * r_in); | ||
112 | void streaminfo_gain(mpc_streaminfo* si, const mpc_bits_reader * r_in); | ||
113 | |||
114 | // mpc_decoder.c | ||
115 | void mpc_decoder_reset_scf(mpc_decoder * d, int value); | ||
116 | |||
117 | #define MPC_IS_FAILURE(X) ((int)(X) < (int)MPC_STATUS_OK) | ||
118 | #define MPC_AUTO_FAIL(X) { mpc_status s = (X); if (MPC_IS_FAILURE(s)) return s; } | ||
119 | |||
120 | #ifdef __cplusplus | ||
121 | } | ||
122 | #endif | ||
123 | #endif | ||