Mercurial > sdl-ios-xcode
annotate docs/html/sdlcdclose.html @ 2042:3908e1f808e1
Fixed bug #292
I might be on crack here.
It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and
right channels of a stereo stream together, and clamps the new mono channel if
it would overflow.
Shouldn't it be dividing by 2 to average the two sample points instead of
clamping? Otherwise the mono sample point's volume doubles in the conversion.
This would also make the conversion faster, as it replaces two branches per
sample frame with a bitwise shift.
--ryan.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 24 Sep 2006 15:56:36 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_CDClose</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
| 0 | 8 "><LINK |
| 9 REL="HOME" | |
| 10 TITLE="SDL Library Documentation" | |
| 11 HREF="index.html"><LINK | |
| 12 REL="UP" | |
| 13 TITLE="CD-ROM" | |
| 14 HREF="cdrom.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_CDEject" | |
| 17 HREF="sdlcdeject.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_CD" | |
| 20 HREF="sdlcd.html"></HEAD | |
| 21 ><BODY | |
| 22 CLASS="REFENTRY" | |
| 23 BGCOLOR="#FFF8DC" | |
| 24 TEXT="#000000" | |
| 25 LINK="#0000ee" | |
| 26 VLINK="#551a8b" | |
| 27 ALINK="#ff0000" | |
| 28 ><DIV | |
| 29 CLASS="NAVHEADER" | |
| 30 ><TABLE | |
|
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31 SUMMARY="Header navigation table" |
| 0 | 32 WIDTH="100%" |
| 33 BORDER="0" | |
| 34 CELLPADDING="0" | |
| 35 CELLSPACING="0" | |
| 36 ><TR | |
| 37 ><TH | |
| 38 COLSPAN="3" | |
| 39 ALIGN="center" | |
| 40 >SDL Library Documentation</TH | |
| 41 ></TR | |
| 42 ><TR | |
| 43 ><TD | |
| 44 WIDTH="10%" | |
| 45 ALIGN="left" | |
| 46 VALIGN="bottom" | |
| 47 ><A | |
| 48 HREF="sdlcdeject.html" | |
|
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49 ACCESSKEY="P" |
| 0 | 50 >Prev</A |
| 51 ></TD | |
| 52 ><TD | |
| 53 WIDTH="80%" | |
| 54 ALIGN="center" | |
| 55 VALIGN="bottom" | |
| 56 ></TD | |
| 57 ><TD | |
| 58 WIDTH="10%" | |
| 59 ALIGN="right" | |
| 60 VALIGN="bottom" | |
| 61 ><A | |
| 62 HREF="sdlcd.html" | |
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63 ACCESSKEY="N" |
| 0 | 64 >Next</A |
| 65 ></TD | |
| 66 ></TR | |
| 67 ></TABLE | |
| 68 ><HR | |
| 69 ALIGN="LEFT" | |
| 70 WIDTH="100%"></DIV | |
| 71 ><H1 | |
| 72 ><A | |
| 73 NAME="SDLCDCLOSE" | |
|
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74 ></A |
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75 >SDL_CDClose</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN7541" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_CDClose -- Closes a SDL_CD handle</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN7544" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN7545" |
| 0 | 95 ></A |
| 96 ><P | |
| 97 ></P | |
| 98 ><PRE | |
| 99 CLASS="FUNCSYNOPSISINFO" | |
| 100 >#include "SDL.h"</PRE | |
| 101 ><P | |
| 102 ><CODE | |
| 103 ><CODE | |
| 104 CLASS="FUNCDEF" | |
| 105 >void <B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_CDClose</B | |
| 108 ></CODE | |
| 109 >(SDL_CD *cdrom);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN7551" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Closes the given <TT | |
| 124 CLASS="PARAMETER" | |
| 125 ><I | |
| 126 >cdrom</I | |
| 127 ></TT | |
| 128 > handle.</P | |
| 129 ></DIV | |
| 130 ><DIV | |
| 131 CLASS="REFSECT1" | |
| 132 ><A | |
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133 NAME="AEN7555" |
| 0 | 134 ></A |
| 135 ><H2 | |
| 136 >See Also</H2 | |
| 137 ><P | |
| 138 ><A | |
| 139 HREF="sdlcdopen.html" | |
| 140 ><TT | |
| 141 CLASS="FUNCTION" | |
| 142 >SDL_CDOpen</TT | |
| 143 ></A | |
| 144 >, | |
| 145 <A | |
| 146 HREF="sdlcd.html" | |
| 147 ><SPAN | |
| 148 CLASS="STRUCTNAME" | |
| 149 >SDL_CD</SPAN | |
| 150 ></A | |
| 151 ></P | |
| 152 ></DIV | |
| 153 ><DIV | |
| 154 CLASS="NAVFOOTER" | |
| 155 ><HR | |
| 156 ALIGN="LEFT" | |
| 157 WIDTH="100%"><TABLE | |
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158 SUMMARY="Footer navigation table" |
| 0 | 159 WIDTH="100%" |
| 160 BORDER="0" | |
| 161 CELLPADDING="0" | |
| 162 CELLSPACING="0" | |
| 163 ><TR | |
| 164 ><TD | |
| 165 WIDTH="33%" | |
| 166 ALIGN="left" | |
| 167 VALIGN="top" | |
| 168 ><A | |
| 169 HREF="sdlcdeject.html" | |
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355632dca928
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parents:
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170 ACCESSKEY="P" |
| 0 | 171 >Prev</A |
| 172 ></TD | |
| 173 ><TD | |
| 174 WIDTH="34%" | |
| 175 ALIGN="center" | |
| 176 VALIGN="top" | |
| 177 ><A | |
| 178 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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179 ACCESSKEY="H" |
| 0 | 180 >Home</A |
| 181 ></TD | |
| 182 ><TD | |
| 183 WIDTH="33%" | |
| 184 ALIGN="right" | |
| 185 VALIGN="top" | |
| 186 ><A | |
| 187 HREF="sdlcd.html" | |
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803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
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changeset
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188 ACCESSKEY="N" |
| 0 | 189 >Next</A |
| 190 ></TD | |
| 191 ></TR | |
| 192 ><TR | |
| 193 ><TD | |
| 194 WIDTH="33%" | |
| 195 ALIGN="left" | |
| 196 VALIGN="top" | |
| 197 >SDL_CDEject</TD | |
| 198 ><TD | |
| 199 WIDTH="34%" | |
| 200 ALIGN="center" | |
| 201 VALIGN="top" | |
| 202 ><A | |
| 203 HREF="cdrom.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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204 ACCESSKEY="U" |
| 0 | 205 >Up</A |
| 206 ></TD | |
| 207 ><TD | |
| 208 WIDTH="33%" | |
| 209 ALIGN="right" | |
| 210 VALIGN="top" | |
| 211 >SDL_CD</TD | |
| 212 ></TR | |
| 213 ></TABLE | |
| 214 ></DIV | |
| 215 ></BODY | |
| 216 ></HTML | |
| 217 > |