Mercurial > sdl-ios-xcode
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 |
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.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