view docs/man3/SDL_CDtrack.3 @ 2042:3908e1f808e1

Fixed bug #292 I might be on crack here. It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and right channels of a stereo stream together, and clamps the new mono channel if it would overflow. Shouldn't it be dividing by 2 to average the two sample points instead of clamping? Otherwise the mono sample point's volume doubles in the conversion. This would also make the conversion faster, as it replaces two branches per sample frame with a bitwise shift. --ryan.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 24 Sep 2006 15:56:36 +0000
parents e5bc29de3f0a
children 546f7c1eb755
line wrap: on
line source

.TH "SDL_CDtrack" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_CDtrack\- CD Track Information Structure
.SH "STRUCTURE DEFINITION"
.PP
.nf
\f(CWtypedef struct{
  Uint8 id;
  Uint8 type;
  Uint32 length;
  Uint32 offset;
} SDL_CDtrack;\fR
.fi
.PP
.SH "STRUCTURE DATA"
.TP 20
\fBid\fR
Track number (0-99)
.TP 20
\fBtype\fR
\fBSDL_AUDIO_TRACK\fP or \fBSDL_DATA_TRACK\fP
.TP 20
\fBlength\fR
Length, in frames, of this track
.TP 20
\fBoffset\fR
Frame offset to the beginning of this track
.SH "DESCRIPTION"
.PP
\fBSDL_CDtrack\fR stores data on each track on a CD, its fields should be pretty self explainatory\&. It is a member a the \fI\fBSDL_CD\fR\fR structure\&.
.PP
.RS
\fBNote:  
.PP
Frames can be converted to standard timings\&. There are \fBCD_FPS\fP frames per second, so \fBSDL_CDtrack\fR\&.\fBlength\fR/\fBCD_FPS\fP=length_in_seconds\&.
.RE
.SH "SEE ALSO"
.PP
\fI\fBSDL_CD\fR\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59