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<HTML><HEAD><TITLE>SDL_CDtrack</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="SDL Library Documentation"HREF="index.html"><LINKREL="UP"TITLE="CD-ROM"HREF="cdrom.html"><LINKREL="PREVIOUS"TITLE="SDL_CD"HREF="sdlcd.html"><LINKREL="NEXT"TITLE="Multi-threaded Programming"HREF="thread.html"></HEAD><BODYCLASS="REFENTRY"BGCOLOR="#FFF8DC"TEXT="#000000"LINK="#0000ee"VLINK="#551a8b"ALINK="#ff0000"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">SDL Library Documentation</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="sdlcd.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom"></TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="thread.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><H1><ANAME="SDLCDTRACK"></A>SDL_CDtrack</H1><DIVCLASS="REFNAMEDIV"><ANAME="AEN7628"></A><H2>Name</H2>SDL_CDtrack -- CD Track Information Structure</DIV><DIVCLASS="REFSECT1"><ANAME="AEN7631"></A><H2>Structure Definition</H2><PRECLASS="PROGRAMLISTING">typedef struct{ Uint8 id; Uint8 type; Uint32 length; Uint32 offset;} SDL_CDtrack;</PRE></DIV><DIVCLASS="REFSECT1"><ANAME="AEN7634"></A><H2>Structure Data</H2><DIVCLASS="INFORMALTABLE"><ANAME="AEN7636"></A><P></P><TABLEBORDER="0"CLASS="CALSTABLE"><TBODY><TR><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="STRUCTFIELD"><I>id</I></TT></TD><TDALIGN="LEFT"VALIGN="TOP">Track number (0-99)</TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="STRUCTFIELD"><I>type</I></TT></TD><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="LITERAL">SDL_AUDIO_TRACK</TT> or <TTCLASS="LITERAL">SDL_DATA_TRACK</TT></TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="STRUCTFIELD"><I>length</I></TT></TD><TDALIGN="LEFT"VALIGN="TOP">Length, in frames, of this track</TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="STRUCTFIELD"><I>offset</I></TT></TD><TDALIGN="LEFT"VALIGN="TOP">Frame offset to the beginning of this track</TD></TR></TBODY></TABLE><P></P></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN7657"></A><H2>Description</H2><P><SPANCLASS="STRUCTNAME">SDL_CDtrack</SPAN> stores data on each track on a CD, its fields should be pretty self explainatory. It is a member a the <AHREF="sdlcd.html"><SPANCLASS="STRUCTNAME">SDL_CD</SPAN></A> structure.</P><DIVCLASS="NOTE"><BLOCKQUOTECLASS="NOTE"><P><B>Note: </B>Frames can be converted to standard timings. There are <TTCLASS="LITERAL">CD_FPS</TT> frames per second, so <SPANCLASS="STRUCTNAME">SDL_CDtrack</SPAN>.<TTCLASS="STRUCTFIELD"><I>length</I></TT>/<TTCLASS="LITERAL">CD_FPS</TT>=length_in_seconds.</P></BLOCKQUOTE></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN7669"></A><H2>See Also</H2><P><AHREF="sdlcd.html"><SPANCLASS="STRUCTNAME">SDL_CD</SPAN></A></P></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="sdlcd.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="index.html"ACCESSKEY="H">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="thread.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">SDL_CD</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="cdrom.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">Multi-threaded Programming</TD></TR></TABLE></DIV></BODY></HTML>⌨️ 快捷键说明
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