Mercurial > fife-parpg

annotate engine/core/audio/soundclip.cpp @ 378:64738befdf3b

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bringing in the changes from the build_system_rework branch in preparation for the 0.3.0 release. This commit will require the Jan2010 devkit. Clients will also need to be modified to the new way to import fife.
author vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
date Mon, 11 Jan 2010 23:34:52 +0000
parents 3804348fe3fb
children
rev   line source
0
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1 /***************************************************************************
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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2 * Copyright (C) 2005-2008 by the FIFE team *
0
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3 * http://www.fifengine.de *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
0
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
0
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
0
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
0
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20 ***************************************************************************/
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21
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22 // Standard C++ library includes
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23
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24 // Platform specific includes
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25
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26 // 3rd party library includes
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27
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28 // FIFE includes
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29 // These includes are split up in two parts, separated by one empty line
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30 // First block: files included from the FIFE root src directory
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31 // Second block: files included from the same folder
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32 #include "util/base/exception.h"
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33 #include "util/log/logger.h"
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34
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35 #include "soundclip.h"
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36
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37 namespace FIFE {
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38 static Logger _log(LM_AUDIO);
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39
239
3804348fe3fb Removed some weird stubs.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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40 SoundClip::SoundClip(SoundDecoder* decptr, bool deletedecoder) : m_isstream(decptr->needsStreaming()), m_decoder(decptr), m_deletedecoder(deletedecoder) {
0
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41 if (!m_isstream) {
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42
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43 // only for non-streaming buffers
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44 SoundBufferEntry* ptr = new SoundBufferEntry();
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45
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46 // iterate the bufs and fill them with data
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47 for (int i = 0; i < BUFFER_NUM; i++) {
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48
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49 if (m_decoder->decode(BUFFER_LEN)) {
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50 // EOF or error
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51 break;
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52 }
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53
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54 // generate buffer and fill it with data
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55 alGenBuffers(1, &ptr->buffers[i]);
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56
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57 alBufferData(ptr->buffers[i], m_decoder->getALFormat(), m_decoder->getBuffer(),
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58 m_decoder->getBufferSize(), m_decoder->getSampleRate());
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59
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60 CHECK_OPENAL_LOG(_log, LogManager::LEVEL_ERROR, "error copying data to buffers")
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61
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62 ptr->usedbufs++;
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63 }
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64
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65 m_decoder->releaseBuffer();
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66
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67 // push the buffer information to the vector
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68 m_buffervec.push_back(ptr);
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69
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70 }
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71 }
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72
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73 unsigned int SoundClip::beginStreaming() {
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74 // create new sound buffer entry
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75 SoundBufferEntry* ptr = new SoundBufferEntry();
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76 ptr->usedbufs=0;
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77 alGenBuffers(BUFFER_NUM, ptr->buffers);
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78
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79 CHECK_OPENAL_LOG(_log, LogManager::LEVEL_ERROR, "error creating streaming-buffers")
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80
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81 m_buffervec.push_back(ptr);
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82
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83 return m_buffervec.size()-1;
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84 }
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85
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86 bool SoundClip::setStreamPos(unsigned int streamid, SoundPositionType type, float value) {
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87 unsigned long pos = 0;
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88
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89 // convert position to bytes
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90 switch (type) {
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91 case SD_BYTE_POS:
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92 pos = static_cast<unsigned long>(value);
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93 break;
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94 case SD_TIME_POS:
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95 value *= m_decoder->getSampleRate();
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96 case SD_SAMPLE_POS:
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97 pos = static_cast<unsigned long>((m_decoder->getBitResolution() / 8) * (m_decoder->isStereo() ? 2 : 1) * value);
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98 break;
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99 }
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100
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101 if (pos > m_decoder->getDecodedLength()) {
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102 // EOF!
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103 return true;
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104 }
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105
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106 // set cursor position
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107 m_buffervec.at(streamid)->deccursor = pos;
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108 return false;
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109 }
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110
378
64738befdf3b bringing in the changes from the build_system_rework branch in preparation for the 0.3.0 release. This commit will require the Jan2010 devkit. Clients will also need to be modified to the new way to import fife.
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
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111 float SoundClip::getStreamPos(unsigned int streamid, SoundPositionType type) const{
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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112 unsigned long pos = m_buffervec.at(streamid)->deccursor;
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113 switch(type) {
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114 case SD_BYTE_POS:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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115 return pos;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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116 case SD_SAMPLE_POS:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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117 return pos / (m_decoder->getBitResolution() / 8 * (m_decoder->isStereo() ? 2 : 1));
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118 case SD_TIME_POS:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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119 return pos / (m_decoder->getBitResolution() / 8 * (m_decoder->isStereo() ? 2 : 1) * m_decoder->getSampleRate());
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120 }
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121 return 0.0f;
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122 }
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123
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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124 void SoundClip::acquireStream(unsigned int streamid) {
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125
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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126 SoundBufferEntry* ptr = m_buffervec.at(streamid);
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127
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128 for (int i = 0; i < BUFFER_NUM; i++) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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129 getStream(streamid, ptr->buffers[i]);
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130 }
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131 }
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132
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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133 bool SoundClip::getStream(unsigned int streamid, ALuint buffer) {
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134
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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135 SoundBufferEntry* ptr = m_buffervec.at(streamid);
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136
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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137 if (ptr->deccursor >= m_decoder->getDecodedLength()) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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138 // EOF!
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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139 return true;
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140 }
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141
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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142 // set cursor of decoder
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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143 m_decoder->setCursor(ptr->deccursor);
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144
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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145 // Error while decoding file?
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146 if (m_decoder->decode(BUFFER_LEN)) {
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147 throw Exception("error while reading from audio file");
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148 }
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149
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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150 // fill the buffer with data
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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151 alBufferData(buffer, m_decoder->getALFormat(),
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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152 m_decoder->getBuffer(), m_decoder->getBufferSize(), m_decoder->getSampleRate());
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153
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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154 m_decoder->releaseBuffer();
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155
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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156 // update cursor
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157 ptr->deccursor += BUFFER_LEN;
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158
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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159 CHECK_OPENAL_LOG(_log, LogManager::LEVEL_ERROR, "error catching stream")
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160
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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161 return false;
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162 }
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163
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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164 void SoundClip::quitStreaming(unsigned int streamid) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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165 // release the buffers
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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166 SoundBufferEntry* ptr = m_buffervec.at(streamid);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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167 alDeleteBuffers(BUFFER_NUM, ptr->buffers);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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168 ptr->buffers[0] = 0;
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169 }
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170
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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171 SoundClip::~SoundClip() {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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172 if (m_isstream) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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173 // erase all elements from the list
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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174 std::vector<SoundBufferEntry*>::iterator it;
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175
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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176 for (it = m_buffervec.begin(); it != m_buffervec.end(); ++it) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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177 if ((*it)->buffers[0] != 0) {
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178 alDeleteBuffers(BUFFER_NUM, (*it)->buffers);
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179 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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180 delete (*it);
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181 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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182 m_buffervec.clear();
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183 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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184 else {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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185 // for non-streaming soundclips
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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186 SoundBufferEntry* ptr = m_buffervec.at(0);
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187
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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188 for(unsigned int i = 0; i < ptr->usedbufs; i++) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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189 alDeleteBuffers(1, &ptr->buffers[i]);
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190 }
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191 }
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192
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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193 // delete decoder
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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194 if (m_deletedecoder && m_decoder != NULL) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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195 delete m_decoder;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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196 }
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197 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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198 }