Mercurial > sdl-ios-xcode
view docs/html/sdlcd.html @ 2947:fec0db6c44b7
Date: Thu, 01 Jan 2009 21:32:12 +0100
From: Couriersud
Subject: Fusionsound audio driver
attached is a diff containing a audio driver for the FusionSound
library. This sound library is closely related to DirectFB and uses the
same transport (fusion) as DirectFB when running applications "remote",
i.e. over the network. As such, it natively redirects sound where
DirectFB redirects video. This may be handy for everyone using SDL over
DirectFB.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Thu, 01 Jan 2009 21:34:22 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_CD</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="CD-ROM" HREF="cdrom.html"><LINK REL="PREVIOUS" TITLE="SDL_CDClose" HREF="sdlcdclose.html"><LINK REL="NEXT" TITLE="SDL_CDtrack" HREF="sdlcdtrack.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlcdclose.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlcdtrack.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLCD" ></A >SDL_CD</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN7566" ></A ><H2 >Name</H2 >SDL_CD -- CDROM Drive Information</DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7569" ></A ><H2 >Structure Definition</H2 ><PRE CLASS="PROGRAMLISTING" >typedef struct{ int id; CDstatus status; int numtracks; int cur_track; int cur_frame; SDL_CDtrack track[SDL_MAX_TRACKS+1]; } SDL_CD;</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7572" ></A ><H2 >Structure Data</H2 ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN7574" ></A ><P ></P ><TABLE BORDER="0" CLASS="CALSTABLE" ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >id</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Private drive identifier</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >status</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Drive <A HREF="sdlcdstatus.html" >status</A ></TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >numtracks</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Number of tracks on the CD</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >cur_track</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Current track</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >cur_frame</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Current frame offset within the track</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >track</I ></TT >[SDL_MAX_TRACKS+1]</TD ><TD ALIGN="LEFT" VALIGN="TOP" >Array of track descriptions. (see <A HREF="sdlcdtrack.html" ><SPAN CLASS="STRUCTNAME" >SDL_CDtrack</SPAN ></A >)</TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7604" ></A ><H2 >Description</H2 ><P >An <SPAN CLASS="STRUCTNAME" >SDL_CD</SPAN > structure is returned by <A HREF="sdlcdopen.html" ><TT CLASS="FUNCTION" >SDL_CDOpen</TT ></A >. It represents an opened CDROM device and stores information on the layout of the tracks on the disc.</P ><P >A frame is the base data unit of a CD. <TT CLASS="LITERAL" >CD_FPS</TT > frames is equal to 1 second of music. SDL provides two macros for converting between time and frames: <TT CLASS="LITERAL" >FRAMES_TO_MSF(f, M,S,F)</TT > and <TT CLASS="LITERAL" >MSF_TO_FRAMES</TT >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7614" ></A ><H2 >Examples</H2 ><PRE CLASS="PROGRAMLISTING" >int min, sec, frame; int frame_offset; FRAMES_TO_MSF(cdrom->cur_frame, &min, &sec, &frame); printf("Current Position: %d minutes, %d seconds, %d frames\n", min, sec, frame); frame_offset=MSF_TO_FRAMES(min, sec, frame);</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7617" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlcdopen.html" ><TT CLASS="FUNCTION" >SDL_CDOpen</TT ></A >, <A HREF="sdlcdtrack.html" ><SPAN CLASS="STRUCTNAME" >SDL_CDtrack</SPAN ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlcdclose.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlcdtrack.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_CDClose</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="cdrom.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_CDtrack</TD ></TR ></TABLE ></DIV ></BODY ></HTML >