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mpcdec.h

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00001 /*
00002   Copyright (c) 2005, The Musepack Development Team
00003   All rights reserved.
00004 
00005   Redistribution and use in source and binary forms, with or without
00006   modification, are permitted provided that the following conditions are
00007   met:
00008 
00009   * Redistributions of source code must retain the above copyright
00010   notice, this list of conditions and the following disclaimer.
00011 
00012   * Redistributions in binary form must reproduce the above
00013   copyright notice, this list of conditions and the following
00014   disclaimer in the documentation and/or other materials provided
00015   with the distribution.
00016 
00017   * Neither the name of the The Musepack Development Team nor the
00018   names of its contributors may be used to endorse or promote
00019   products derived from this software without specific prior
00020   written permission.
00021 
00022   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00023   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00024   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
00025   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
00026   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00027   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00028   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00029   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00030   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00031   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00032   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00033 */
00034 
00037 
00038 #ifndef _mpcdec_h_
00039 #define _mpcdec_h_
00040 
00041 #ifdef __cplusplus
00042 extern "C" {
00043 #endif
00044 
00045 #include <stdio.h>
00046 #include <stdlib.h>
00047 #include <string.h>
00048 
00049 #ifndef WIN32
00050 #include "mpcdec/config_types.h"
00051 #else
00052 #include "mpcdec/config_win32.h"
00053 #endif
00054 
00055 #include "decoder.h"
00056 #include "math.h"
00057 #include "reader.h"
00058 #include "streaminfo.h"
00059     
00060 enum {
00061     MPC_FRAME_LENGTH = (36 * 32),    
00062     MPC_DECODER_BUFFER_LENGTH = 4 * MPC_FRAME_LENGTH 
00063 };
00064 
00065 // error codes
00066 #define ERROR_CODE_OK            0
00067 #define ERROR_CODE_FILE         -1
00068 #define ERROR_CODE_SV7BETA       1
00069 #define ERROR_CODE_CBR           2
00070 #define ERROR_CODE_IS            3
00071 #define ERROR_CODE_BLOCKSIZE     4
00072 #define ERROR_CODE_INVALIDSV     5
00073 
00076 void mpc_streaminfo_init(mpc_streaminfo *si);
00077 
00082 mpc_int32_t mpc_streaminfo_read(mpc_streaminfo *si, mpc_reader *r);
00083 
00086 double mpc_streaminfo_get_length(mpc_streaminfo *si);
00087 
00090 mpc_int64_t mpc_streaminfo_get_length_samples(mpc_streaminfo *si);
00091 
00095 void mpc_decoder_setup(mpc_decoder *d, mpc_reader *r);
00096 
00101 mpc_bool_t mpc_decoder_initialize(mpc_decoder *d, mpc_streaminfo *si);
00102 
00106 void mpc_decoder_scale_output(mpc_decoder *d, double scale_factor);
00107 
00116 mpc_uint32_t mpc_decoder_decode(
00117     mpc_decoder *d,
00118     MPC_SAMPLE_FORMAT *buffer, 
00119     mpc_uint32_t *vbr_update_acc, 
00120     mpc_uint32_t *vbr_update_bits);
00121 
00123 mpc_bool_t mpc_decoder_seek_sample(mpc_decoder *d, mpc_int64_t destsample);
00124 
00126 mpc_bool_t mpc_decoder_seek_seconds(mpc_decoder *d, double seconds);
00127 
00128 #ifdef __cplusplus
00129 }
00130 #endif // __cplusplus
00131 
00132 #endif // _mpcdec_h_

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