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Major change to musepack decoder: Import v1.3.0 (r458 from svn.musepack.net) to rockbox. Several adaptions in the musepack decoder were made to get the library work and perform fast under rockbox on several targets. With this change mpc sv8 is supported, including seek, replay gain and metadata support. The decoding speed is a 1-4% lower than the last implementation. Reason for this is main restructuring in the bitstream demuxer.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25056 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andree Buschmann 2010-03-07 19:34:44 +00:00
parent ce92b8bf34
commit b3d9578c27
36 changed files with 3204 additions and 2807 deletions
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56
apps/codecs/libmusepack/huffman.h
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@ -1,5 +1,5 @@
/*
Copyright (c) 2005, The Musepack Development Team
Copyright (c) 2005-2009, The Musepack Development Team
All rights reserved.
Redistribution and use in source and binary forms, with or without
@ -31,23 +31,53 @@
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/// \file huffman.h
/// Data structures and functions for huffman coding.
#ifndef _mpcdec_huffman_h_
#define _mpcdec_huffman_h_
#ifndef _MPCDEC_HUFFMAN_H_
#define _MPCDEC_HUFFMAN_H_
#ifdef WIN32
#pragma once
#endif
#include "config_types.h"
#include "decoder.h"
#include "mpc_types.h"
struct mpc_decoder_t; // forward declare to break circular dependencies
#ifdef __cplusplus
extern "C" {
#endif
// LUT size parameter, LUT size is 1 << LUT_DEPTH
#define LUT_DEPTH 6
/// Huffman table entry.
typedef struct huffman_type_t {
mpc_uint32_t Code;
mpc_uint8_t Length;
mpc_int8_t Value;
} HuffmanTyp;
typedef struct mpc_huffman_t {
mpc_uint16_t Code;
mpc_uint8_t Length;
mpc_int8_t Value;
} mpc_huffman;
#endif // _mpcdec_huffman_h_
/// Huffman LUT entry.
typedef struct mpc_huff_lut_t {
mpc_uint8_t Length;
mpc_int8_t Value;
} mpc_huff_lut;
/// Type used for huffman LUT decoding
typedef struct mpc_lut_data_t {
mpc_huffman const *table;
mpc_huff_lut lut[1 << LUT_DEPTH];
} mpc_lut_data;
/// Type used for canonical huffman decoding
typedef struct mpc_can_data_t {
mpc_huffman const *table;
mpc_int8_t const *sym;
mpc_huff_lut lut[1 << LUT_DEPTH];
} mpc_can_data;
void huff_init_lut(const int bits);
#ifdef __cplusplus
}
#endif
#endif