Mercurial > sdl-ios-xcode
annotate docs/html/cdrom.html @ 273:72acb06d3721
*** empty log message ***
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 22 Jan 2002 21:14:36 +0000 |
| parents | 55f1f1b3e27d |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >CD-ROM</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
| 0 | 8 "><LINK |
| 9 REL="HOME" | |
| 10 TITLE="SDL Library Documentation" | |
| 11 HREF="index.html"><LINK | |
| 12 REL="UP" | |
| 13 TITLE="SDL Reference" | |
| 14 HREF="reference.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_CloseAudio" | |
| 17 HREF="sdlcloseaudio.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_CDNumDrives" | |
| 20 HREF="sdlcdnumdrives.html"><META | |
| 21 NAME="KEYWORD" | |
| 22 CONTENT="cdrom"><META | |
| 23 NAME="KEYWORD" | |
| 24 CONTENT="function"></HEAD | |
| 25 ><BODY | |
| 26 CLASS="CHAPTER" | |
| 27 BGCOLOR="#FFF8DC" | |
| 28 TEXT="#000000" | |
| 29 LINK="#0000ee" | |
| 30 VLINK="#551a8b" | |
| 31 ALINK="#ff0000" | |
| 32 ><DIV | |
| 33 CLASS="NAVHEADER" | |
| 34 ><TABLE | |
| 35 WIDTH="100%" | |
| 36 BORDER="0" | |
| 37 CELLPADDING="0" | |
| 38 CELLSPACING="0" | |
| 39 ><TR | |
| 40 ><TH | |
| 41 COLSPAN="3" | |
| 42 ALIGN="center" | |
| 43 >SDL Library Documentation</TH | |
| 44 ></TR | |
| 45 ><TR | |
| 46 ><TD | |
| 47 WIDTH="10%" | |
| 48 ALIGN="left" | |
| 49 VALIGN="bottom" | |
| 50 ><A | |
| 51 HREF="sdlcloseaudio.html" | |
| 52 >Prev</A | |
| 53 ></TD | |
| 54 ><TD | |
| 55 WIDTH="80%" | |
| 56 ALIGN="center" | |
| 57 VALIGN="bottom" | |
| 58 ></TD | |
| 59 ><TD | |
| 60 WIDTH="10%" | |
| 61 ALIGN="right" | |
| 62 VALIGN="bottom" | |
| 63 ><A | |
| 64 HREF="sdlcdnumdrives.html" | |
| 65 >Next</A | |
| 66 ></TD | |
| 67 ></TR | |
| 68 ></TABLE | |
| 69 ><HR | |
| 70 ALIGN="LEFT" | |
| 71 WIDTH="100%"></DIV | |
| 72 ><DIV | |
| 73 CLASS="CHAPTER" | |
| 74 ><H1 | |
| 75 ><A | |
| 76 NAME="CDROM" | |
| 77 >Chapter 11. CD-ROM</A | |
| 78 ></H1 | |
| 79 ><DIV | |
| 80 CLASS="TOC" | |
| 81 ><DL | |
| 82 ><DT | |
| 83 ><B | |
| 84 >Table of Contents</B | |
| 85 ></DT | |
| 86 ><DT | |
| 87 ><A | |
| 88 HREF="sdlcdnumdrives.html" | |
| 89 >SDL_CDNumDrives</A | |
| 90 > — Returns the number of CD-ROM drives on the system.</DT | |
| 91 ><DT | |
| 92 ><A | |
| 93 HREF="sdlcdname.html" | |
| 94 >SDL_CDName</A | |
| 95 > — Returns a human-readable, system-dependent identifier for the CD-ROM.</DT | |
| 96 ><DT | |
| 97 ><A | |
| 98 HREF="sdlcdopen.html" | |
| 99 >SDL_CDOpen</A | |
| 100 > — Opens a CD-ROM drive for access.</DT | |
| 101 ><DT | |
| 102 ><A | |
| 103 HREF="sdlcdstatus.html" | |
| 104 >SDL_CDStatus</A | |
| 105 > — Returns the current status of the given drive.</DT | |
| 106 ><DT | |
| 107 ><A | |
| 108 HREF="sdlcdplay.html" | |
| 109 >SDL_CDPlay</A | |
| 110 > — Play a CD</DT | |
| 111 ><DT | |
| 112 ><A | |
| 113 HREF="sdlcdplaytracks.html" | |
| 114 >SDL_CDPlayTracks</A | |
| 115 > — Play the given CD track(s)</DT | |
| 116 ><DT | |
| 117 ><A | |
| 118 HREF="sdlcdpause.html" | |
| 119 >SDL_CDPause</A | |
| 120 > — Pauses a CDROM</DT | |
| 121 ><DT | |
| 122 ><A | |
| 123 HREF="sdlcdresume.html" | |
| 124 >SDL_CDResume</A | |
| 125 > — Resumes a CDROM</DT | |
| 126 ><DT | |
| 127 ><A | |
| 128 HREF="sdlcdstop.html" | |
| 129 >SDL_CDStop</A | |
| 130 > — Stops a CDROM</DT | |
| 131 ><DT | |
| 132 ><A | |
| 133 HREF="sdlcdeject.html" | |
| 134 >SDL_CDEject</A | |
| 135 > — Ejects a CDROM</DT | |
| 136 ><DT | |
| 137 ><A | |
| 138 HREF="sdlcdclose.html" | |
| 139 >SDL_CDClose</A | |
| 140 > — Closes a SDL_CD handle</DT | |
| 141 ><DT | |
| 142 ><A | |
| 143 HREF="sdlcd.html" | |
| 144 >SDL_CD</A | |
| 145 > — CDROM Drive Information</DT | |
| 146 ><DT | |
| 147 ><A | |
| 148 HREF="sdlcdtrack.html" | |
| 149 >SDL_CDtrack</A | |
| 150 > — CD Track Information Structure</DT | |
| 151 ></DL | |
| 152 ></DIV | |
| 153 ><P | |
| 154 >SDL supports audio control of up to 32 local CD-ROM drives at once.</P | |
| 155 ><P | |
| 156 >You use this API to perform all the basic functions of a CD player, | |
| 157 including listing the tracks, playing, stopping, and ejecting the CD-ROM. | |
| 158 (Currently, multi-changer CD drives are not supported.)</P | |
| 159 ><P | |
| 160 >Before you call any of the SDL CD-ROM functions, you must first call | |
| 161 "<TT | |
| 162 CLASS="FUNCTION" | |
| 163 >SDL_Init(SDL_INIT_CDROM)</TT | |
| 164 >", which scans the system for | |
| 165 CD-ROM drives, and sets the program up for audio control. Check the | |
| 166 return code, which should be <SPAN | |
| 167 CLASS="RETURNVALUE" | |
| 168 >0</SPAN | |
| 169 >, to see if there | |
| 170 were any errors in starting up.</P | |
| 171 ><P | |
| 172 >After you have initialized the library, you can find out how many drives | |
| 173 are available using the <TT | |
| 174 CLASS="FUNCTION" | |
| 175 >SDL_CDNumDrives()</TT | |
| 176 > function. | |
| 177 The first drive listed is the system default CD-ROM drive. After you have | |
| 178 chosen a drive, and have opened it with <TT | |
| 179 CLASS="FUNCTION" | |
| 180 >SDL_CDOpen()</TT | |
| 181 >, | |
| 182 you can check the status and start playing if there's a CD in the drive.</P | |
| 183 ><P | |
| 184 >A CD-ROM is organized into one or more tracks, each consisting of a certain | |
| 185 number of "frames". Each frame is ~2K in size, and at normal playing speed, | |
| 186 a CD plays 75 frames per second. SDL works with the number of frames on a | |
| 187 CD, but this can easily be converted to the more familiar minutes/seconds | |
| 188 format by using the <TT | |
| 189 CLASS="FUNCTION" | |
| 190 >FRAMES_TO_MSF()</TT | |
| 191 > macro.</P | |
| 192 ></DIV | |
| 193 ><DIV | |
| 194 CLASS="NAVFOOTER" | |
| 195 ><HR | |
| 196 ALIGN="LEFT" | |
| 197 WIDTH="100%"><TABLE | |
| 198 WIDTH="100%" | |
| 199 BORDER="0" | |
| 200 CELLPADDING="0" | |
| 201 CELLSPACING="0" | |
| 202 ><TR | |
| 203 ><TD | |
| 204 WIDTH="33%" | |
| 205 ALIGN="left" | |
| 206 VALIGN="top" | |
| 207 ><A | |
| 208 HREF="sdlcloseaudio.html" | |
| 209 >Prev</A | |
| 210 ></TD | |
| 211 ><TD | |
| 212 WIDTH="34%" | |
| 213 ALIGN="center" | |
| 214 VALIGN="top" | |
| 215 ><A | |
| 216 HREF="index.html" | |
| 217 >Home</A | |
| 218 ></TD | |
| 219 ><TD | |
| 220 WIDTH="33%" | |
| 221 ALIGN="right" | |
| 222 VALIGN="top" | |
| 223 ><A | |
| 224 HREF="sdlcdnumdrives.html" | |
| 225 >Next</A | |
| 226 ></TD | |
| 227 ></TR | |
| 228 ><TR | |
| 229 ><TD | |
| 230 WIDTH="33%" | |
| 231 ALIGN="left" | |
| 232 VALIGN="top" | |
| 233 >SDL_CloseAudio</TD | |
| 234 ><TD | |
| 235 WIDTH="34%" | |
| 236 ALIGN="center" | |
| 237 VALIGN="top" | |
| 238 ><A | |
| 239 HREF="reference.html" | |
| 240 >Up</A | |
| 241 ></TD | |
| 242 ><TD | |
| 243 WIDTH="33%" | |
| 244 ALIGN="right" | |
| 245 VALIGN="top" | |
| 246 >SDL_CDNumDrives</TD | |
| 247 ></TR | |
| 248 ></TABLE | |
| 249 ></DIV | |
| 250 ></BODY | |
| 251 ></HTML | |
| 252 > |