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4 >SDL_BuildAudioCVT</TITLE |
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40 >SDL Library Documentation</TH |
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70 WIDTH="100%"></DIV |
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71 ><H1 |
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72 ><A |
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73 NAME="SDLBUILDAUDIOCVT" |
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74 ></A |
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75 >SDL_BuildAudioCVT</H1 |
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76 ><DIV |
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77 CLASS="REFNAMEDIV" |
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78 ><A |
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79 NAME="AEN7002" |
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80 ></A |
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81 ><H2 |
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82 >Name</H2 |
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83 >SDL_BuildAudioCVT -- Initializes a SDL_AudioCVT structure for conversion</DIV |
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84 ><DIV |
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85 CLASS="REFSYNOPSISDIV" |
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86 ><A |
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87 NAME="AEN7005" |
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88 ></A |
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89 ><H2 |
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90 >Synopsis</H2 |
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91 ><DIV |
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92 CLASS="FUNCSYNOPSIS" |
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93 ><A |
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94 NAME="AEN7006" |
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95 ></A |
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96 ><P |
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97 ></P |
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98 ><PRE |
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99 CLASS="FUNCSYNOPSISINFO" |
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100 >#include "SDL.h"</PRE |
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101 ><P |
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102 ><CODE |
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103 ><CODE |
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104 CLASS="FUNCDEF" |
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105 >int <B |
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106 CLASS="FSFUNC" |
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107 >SDL_BuildAudioCVT</B |
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108 ></CODE |
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109 >(SDL_AudioCVT *cvt, Uint16 src_format, Uint8 src_channels, int src_rate, Uint16 dst_format, Uint8 dst_channels, int dst_rate);</CODE |
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110 ></P |
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116 CLASS="REFSECT1" |
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118 NAME="AEN7012" |
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119 ></A |
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120 ><H2 |
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121 >Description</H2 |
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122 ><P |
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123 >Before an <A |
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124 HREF="sdlaudiocvt.html" |
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125 ><SPAN |
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126 CLASS="STRUCTNAME" |
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127 >SDL_AudioCVT</SPAN |
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128 ></A |
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129 > structure can be used to convert audio data it must be initialized with source and destination information. </P |
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130 ><P |
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131 ><TT |
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132 CLASS="PARAMETER" |
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133 ><I |
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134 >src_format</I |
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135 ></TT |
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136 > and <TT |
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137 CLASS="PARAMETER" |
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138 ><I |
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139 >dst_format</I |
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140 ></TT |
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141 > are the source and destination format of the conversion. (For information on audio formats see <A |
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142 HREF="sdlaudiospec.html" |
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143 ><SPAN |
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144 CLASS="STRUCTNAME" |
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145 > SDL_AudioSpec</SPAN |
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146 ></A |
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147 >). <TT |
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148 CLASS="PARAMETER" |
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149 ><I |
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150 >src_channels</I |
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151 ></TT |
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152 > and <TT |
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153 CLASS="PARAMETER" |
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154 ><I |
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155 >dst_channels</I |
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156 ></TT |
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157 > are the number of channels in the source and destination formats. Finally, <TT |
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158 CLASS="PARAMETER" |
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159 ><I |
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160 >src_rate</I |
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161 ></TT |
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162 > and <TT |
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163 CLASS="PARAMETER" |
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164 ><I |
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165 >dst_rate</I |
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166 ></TT |
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167 > are the frequency or samples-per-second of the source and destination formats. Once again, see <A |
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168 HREF="sdlaudiospec.html" |
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169 ><SPAN |
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170 CLASS="STRUCTNAME" |
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171 >SDL_AudioSpec</SPAN |
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172 ></A |
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173 >.</P |
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174 ></DIV |
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175 ><DIV |
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176 CLASS="REFSECT1" |
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177 ><A |
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178 NAME="AEN7028" |
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179 ></A |
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180 ><H2 |
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181 >Return Values</H2 |
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182 ><P |
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183 >Returns <SPAN |
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184 CLASS="RETURNVALUE" |
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185 >-1</SPAN |
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186 > if the filter could not be built or 1 if it could.</P |
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187 ></DIV |
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190 ><A |
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191 NAME="AEN7032" |
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192 ></A |
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193 ><H2 |
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194 >Examples</H2 |
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195 ><P |
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196 >See <A |
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197 HREF="sdlconvertaudio.html" |
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198 ><TT |
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199 CLASS="FUNCTION" |
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200 >SDL_ConvertAudio</TT |
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201 ></A |
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202 >.</P |
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203 ></DIV |
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204 ><DIV |
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205 CLASS="REFSECT1" |
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206 ><A |
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207 NAME="AEN7037" |
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208 ></A |
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209 ><H2 |
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210 >See Also</H2 |
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211 ><P |
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212 ><A |
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213 HREF="sdlconvertaudio.html" |
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214 ><TT |
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215 CLASS="FUNCTION" |
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216 >SDL_ConvertAudio</TT |
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217 ></A |
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218 >, |
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219 <A |
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220 HREF="sdlaudiocvt.html" |
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221 ><TT |
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222 CLASS="FUNCTION" |
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223 >SDL_AudioCVT</TT |
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