Mercurial > sdl-ios-xcode
annotate docs/html/sdlcdresume.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_CDResume</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_CDPause" | |
| 17 HREF="sdlcdpause.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_CDStop" | |
| 20 HREF="sdlcdstop.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="sdlcdpause.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="sdlcdstop.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="SDLCDRESUME" | |
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74 ></A |
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75 >SDL_CDResume</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN7455" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_CDResume -- Resumes a CDROM</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN7458" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN7459" |
| 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 >int <B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_CDResume</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="AEN7465" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Resumes play on the given <TT | |
| 124 CLASS="PARAMETER" | |
| 125 ><I | |
| 126 >cdrom</I | |
| 127 ></TT | |
| 128 >.</P | |
| 129 ></DIV | |
| 130 ><DIV | |
| 131 CLASS="REFSECT1" | |
| 132 ><A | |
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133 NAME="AEN7469" |
| 0 | 134 ></A |
| 135 ><H2 | |
| 136 >Return Value</H2 | |
| 137 ><P | |
| 138 >Returns <SPAN | |
| 139 CLASS="RETURNVALUE" | |
| 140 >0</SPAN | |
| 141 > on success, or <SPAN | |
| 142 CLASS="RETURNVALUE" | |
| 143 >-1</SPAN | |
| 144 > on an error.</P | |
| 145 ></DIV | |
| 146 ><DIV | |
| 147 CLASS="REFSECT1" | |
| 148 ><A | |
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149 NAME="AEN7474" |
| 0 | 150 ></A |
| 151 ><H2 | |
| 152 >See Also</H2 | |
| 153 ><P | |
| 154 ><A | |
| 155 HREF="sdlcdplay.html" | |
| 156 ><TT | |
| 157 CLASS="FUNCTION" | |
| 158 >SDL_CDPlay</TT | |
| 159 ></A | |
| 160 >, | |
| 161 <A | |
| 162 HREF="sdlcdpause.html" | |
| 163 ><TT | |
| 164 CLASS="FUNCTION" | |
| 165 >SDL_CDPause</TT | |
| 166 ></A | |
| 167 ></P | |
| 168 ></DIV | |
| 169 ><DIV | |
| 170 CLASS="NAVFOOTER" | |
| 171 ><HR | |
| 172 ALIGN="LEFT" | |
| 173 WIDTH="100%"><TABLE | |
|
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174 SUMMARY="Footer navigation table" |
| 0 | 175 WIDTH="100%" |
| 176 BORDER="0" | |
| 177 CELLPADDING="0" | |
| 178 CELLSPACING="0" | |
| 179 ><TR | |
| 180 ><TD | |
| 181 WIDTH="33%" | |
| 182 ALIGN="left" | |
| 183 VALIGN="top" | |
| 184 ><A | |
| 185 HREF="sdlcdpause.html" | |
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803
355632dca928
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parents:
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diff
changeset
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186 ACCESSKEY="P" |
| 0 | 187 >Prev</A |
| 188 ></TD | |
| 189 ><TD | |
| 190 WIDTH="34%" | |
| 191 ALIGN="center" | |
| 192 VALIGN="top" | |
| 193 ><A | |
| 194 HREF="index.html" | |
|
803
355632dca928
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parents:
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diff
changeset
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195 ACCESSKEY="H" |
| 0 | 196 >Home</A |
| 197 ></TD | |
| 198 ><TD | |
| 199 WIDTH="33%" | |
| 200 ALIGN="right" | |
| 201 VALIGN="top" | |
| 202 ><A | |
| 203 HREF="sdlcdstop.html" | |
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803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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204 ACCESSKEY="N" |
| 0 | 205 >Next</A |
| 206 ></TD | |
| 207 ></TR | |
| 208 ><TR | |
| 209 ><TD | |
| 210 WIDTH="33%" | |
| 211 ALIGN="left" | |
| 212 VALIGN="top" | |
| 213 >SDL_CDPause</TD | |
| 214 ><TD | |
| 215 WIDTH="34%" | |
| 216 ALIGN="center" | |
| 217 VALIGN="top" | |
| 218 ><A | |
| 219 HREF="cdrom.html" | |
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803
355632dca928
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parents:
181
diff
changeset
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220 ACCESSKEY="U" |
| 0 | 221 >Up</A |
| 222 ></TD | |
| 223 ><TD | |
| 224 WIDTH="33%" | |
| 225 ALIGN="right" | |
| 226 VALIGN="top" | |
| 227 >SDL_CDStop</TD | |
| 228 ></TR | |
| 229 ></TABLE | |
| 230 ></DIV | |
| 231 ></BODY | |
| 232 ></HTML | |
| 233 > |