Mercurial > sdl-ios-xcode
view docs/html/sdlloadwav.html @ 693:6c119628180d
Date: Sat, 16 Aug 2003 16:22:56 +0300
From: "Mike Gorchak"
Subject: Package building for QNX6
I'm just completed the package description file for QNX6 - qpg, it is like a\
.spec files for Linux. Please place SDL.qpg.in file in the root of the proj\
ect, where .spec file is placed. And sdl12qpg.diff - just adding the SDL.qpg\
.in. The same for the SDL_image. I'm planning to add .qpg files creation for\
all SDL* projects.
As for shared library building for QNX6. It is very hard to improve the exis\
ting libtool code to support QNX shared libraries. Much easyiest is to remov\
e libtool.m4 code from the acinclude.m4 for those persons, who building shar\
ed libraries for QNX6. I'm described all what they need to do with .so under\
QNX6 in the README.QNX file. And 90% of people used the precompiled librari\
es, so I think it is not big problem :)
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 23 Aug 2003 23:25:46 +0000 |
parents | e5bc29de3f0a |
children | 355632dca928 |
line wrap: on
line source
<HTML ><HEAD ><TITLE >SDL_LoadWAV</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.64 "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="Audio" HREF="audio.html"><LINK REL="PREVIOUS" TITLE="SDL_GetAudioStatus" HREF="sdlgetaudiostatus.html"><LINK REL="NEXT" TITLE="SDL_FreeWAV" HREF="sdlfreewav.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><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="sdlgetaudiostatus.html" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlfreewav.html" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLLOADWAV" >SDL_LoadWAV</A ></H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN6428" ></A ><H2 >Name</H2 >SDL_LoadWAV -- Load a WAVE file</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN6431" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN6432" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >SDL_AudioSpec *<B CLASS="FSFUNC" >SDL_LoadWAV</B ></CODE >(const char *file, SDL_AudioSpec *spec, Uint8 **audio_buf, Uint32 *audio_len);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN6438" ></A ><H2 >Description</H2 ><P ><TT CLASS="FUNCTION" >SDL_LoadWAV</TT > This function loads a WAVE <TT CLASS="PARAMETER" ><I >file</I ></TT > into memory.</P ><P >If this function succeeds, it returns the given <A HREF="sdlaudiospec.html" ><TT CLASS="FUNCTION" >SDL_AudioSpec</TT ></A >, filled with the audio data format of the wave data, and sets <TT CLASS="PARAMETER" ><I >audio_buf</I ></TT > to a <TT CLASS="FUNCTION" >malloc</TT >'d buffer containing the audio data, and sets <TT CLASS="PARAMETER" ><I >audio_len</I ></TT > to the length of that audio buffer, in bytes. You need to free the audio buffer with <A HREF="sdlfreewav.html" ><TT CLASS="FUNCTION" >SDL_FreeWAV</TT ></A > when you are done with it.</P ><P >This function returns <TT CLASS="LITERAL" >NULL</TT > and sets the SDL error message if the wave file cannot be opened, uses an unknown data format, or is corrupt. Currently raw, MS-ADPCM and IMA-ADPCM WAVE files are supported.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN6453" ></A ><H2 >Example</H2 ><PRE CLASS="PROGRAMLISTING" >SDL_AudioSpec wav_spec; Uint32 wav_length; Uint8 *wav_buffer; /* Load the WAV */ if( SDL_LoadWAV("test.wav", &wav_spec, &wav_buffer, &wav_length) == NULL ){ fprintf(stderr, "Could not open test.wav: %s\n", SDL_GetError()); exit(-1); } . . . /* Do stuff with the WAV */ . . /* Free It */ SDL_FreeWAV(wav_buffer);</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN6456" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlaudiospec.html" ><SPAN CLASS="STRUCTNAME" >SDL_AudioSpec</SPAN ></A >, <A HREF="sdlopenaudio.html" ><TT CLASS="FUNCTION" >SDL_OpenAudio</TT ></A >, <A HREF="sdlfreewav.html" ><TT CLASS="FUNCTION" >SDL_FreeWAV</TT ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlgetaudiostatus.html" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlfreewav.html" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_GetAudioStatus</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="audio.html" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_FreeWAV</TD ></TR ></TABLE ></DIV ></BODY ></HTML >