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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/decoder.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/decoder.h')
-rw-r--r-- | lib/rbcodec/codecs/libmusepack/decoder.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libmusepack/decoder.h b/lib/rbcodec/codecs/libmusepack/decoder.h new file mode 100644 index 0000000000..1acacae8d9 --- /dev/null +++ b/lib/rbcodec/codecs/libmusepack/decoder.h | |||
@@ -0,0 +1,101 @@ | |||
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 decoder.h | ||
35 | #ifndef _MPCDEC_DECODER_H_ | ||
36 | #define _MPCDEC_DECODER_H_ | ||
37 | #ifdef WIN32 | ||
38 | #pragma once | ||
39 | #endif | ||
40 | |||
41 | #include "reader.h" | ||
42 | |||
43 | #ifdef __cplusplus | ||
44 | extern "C" { | ||
45 | #endif | ||
46 | |||
47 | #define SEEKING_TABLE_SIZE 256u | ||
48 | // set it to SLOW_SEEKING_WINDOW to not use fast seeking | ||
49 | #define FAST_SEEKING_WINDOW 32 | ||
50 | // set it to FAST_SEEKING_WINDOW to only use fast seeking | ||
51 | #define SLOW_SEEKING_WINDOW 0x80000000 | ||
52 | |||
53 | enum { | ||
54 | MPC_V_MEM = 2304, | ||
55 | MPC_DECODER_MEMSIZE = 16384, // overall buffer size | ||
56 | }; | ||
57 | |||
58 | struct mpc_decoder_t { | ||
59 | /// @name internal state variables | ||
60 | //@{ | ||
61 | mpc_uint32_t stream_version; ///< Streamversion of stream | ||
62 | mpc_int32_t max_band; ///< Maximum band-index used in stream (0...31) | ||
63 | mpc_uint32_t ms; ///< Mid/side stereo (0: off, 1: on) | ||
64 | mpc_uint32_t channels; ///< Number of channels in stream | ||
65 | |||
66 | mpc_uint64_t samples; ///< Number of samples in stream | ||
67 | |||
68 | mpc_uint64_t decoded_samples; ///< Number of samples decoded from file begining | ||
69 | mpc_uint32_t samples_to_skip; ///< Number samples to skip (used for seeking) | ||
70 | mpc_int32_t last_max_band; ///< number of bands used in the last frame | ||
71 | |||
72 | // randomizer state variables | ||
73 | mpc_uint32_t __r1; | ||
74 | mpc_uint32_t __r2; | ||
75 | |||
76 | mpc_int32_t SCF_Index_L [32] [3]; | ||
77 | mpc_int32_t SCF_Index_R [32] [3]; // holds scalefactor-indices | ||
78 | mpc_quantizer Q [32]; // holds quantized samples | ||
79 | mpc_int32_t Res_L [32]; | ||
80 | mpc_int32_t Res_R [32]; // holds the chosen quantizer for each subband | ||
81 | mpc_bool_t DSCF_Flag_L [32]; | ||
82 | mpc_bool_t DSCF_Flag_R [32]; // differential SCF used? | ||
83 | mpc_int32_t SCFI_L [32]; | ||
84 | mpc_int32_t SCFI_R [32]; // describes order of transmitted SCF | ||
85 | mpc_bool_t MS_Flag[32]; // MS used? | ||
86 | #ifdef MPC_FIXED_POINT | ||
87 | mpc_uint8_t SCF_shift[256]; | ||
88 | #endif | ||
89 | |||
90 | MPC_SAMPLE_FORMAT *V_L; | ||
91 | MPC_SAMPLE_FORMAT *V_R; | ||
92 | MPC_SAMPLE_FORMAT *Y_L; | ||
93 | MPC_SAMPLE_FORMAT *Y_R; | ||
94 | mpc_uint32_t SCF[256]; ///< holds adapted scalefactors (for clipping prevention) | ||
95 | //@} | ||
96 | }; | ||
97 | |||
98 | #ifdef __cplusplus | ||
99 | } | ||
100 | #endif | ||
101 | #endif | ||