Mercurial > sdl-ios-xcode
view docs/man3/SDL_MixAudio.3 @ 2364:e321b52dee8f gsoc2008_iphone
These files contain the audio support for iPhone. They are based on the CoreAudio audio driver for Mac OS X. The principle difference is that the iPhone doesn't seem to have a concept of audio devices ... it just has special units for audio in and audio out. Also had to change some functions to versions which seem to only exist on iPhone and will apparently exist in Mac OS X 10.6(!)
There is currently no audio recording support -- my iPod Touch doesn't have a microphone to test this with.
author | Holmes Futrell <hfutrell@umail.ucsb.edu> |
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date | Fri, 18 Jul 2008 17:53:54 +0000 |
parents | 546f7c1eb755 |
children | 1238da4a7112 |
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.TH "SDL_MixAudio" "3" "Tue 11 Sep 2001, 22:58" "SDL" "SDL API Reference" .SH "NAME" SDL_MixAudio \- Mix audio data .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBvoid \fBSDL_MixAudio\fP\fR(\fBUint8 *dst, Uint8 *src, Uint32 len, int volume\fR); .SH "DESCRIPTION" .PP This function takes two audio buffers of \fBlen\fR bytes each of the playing audio format and mixes them, performing addition, volume adjustment, and overflow clipping\&. The \fBvolume\fR ranges from 0 to \fBSDL_MIX_MAXVOLUME\fP and should be set to the maximum value for full audio volume\&. Note this does not change hardware volume\&. This is provided for convenience -- you can mix your own audio data\&. .PP .RS \fBNote: .PP Do not use this function for mixing together more than two streams of sample data\&. The output from repeated application of this function may be distorted by clipping, because there is no accumulator with greater range than the input (not to mention this being an inefficient way of doing it)\&. Use mixing functions from SDL_mixer, OpenAL, or write your own mixer instead\&. .RE .SH "SEE ALSO" .PP \fI\fBSDL_OpenAudio\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:58