SDL_CD.3
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上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:1k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- .TH "SDL_CD" "3" "Tue 11 Sep 2001, 22:58" "SDL" "SDL API Reference"
- .SH "NAME"
- SDL_CD- CDROM Drive Information
- .SH "STRUCTURE DEFINITION"
- .PP
- .nf
- f(CWtypedef struct{
- int id;
- CDstatus status;
- int numtracks;
- int cur_track;
- int cur_frame;
- SDL_CDtrack track[SDL_MAX_TRACKS+1];
- } SDL_CD;fR
- .fi
- .PP
- .SH "STRUCTURE DATA"
- .TP 20
- fBidfR
- Private drive identifier
- .TP 20
- fBstatusfR
- Drive fIstatusfR
- .TP 20
- fBnumtracksfR
- Number of tracks on the CD
- .TP 20
- fBcur_trackfR
- Current track
- .TP 20
- fBcur_framefR
- Current frame offset within the track
- .TP 20
- fBtrackfR[SDL_MAX_TRACKS+1]
- Array of track descriptions&. (see fIfBSDL_CDtrackfRfR)
- .SH "DESCRIPTION"
- .PP
- An fBSDL_CDfR structure is returned by fIfBSDL_CDOpenfPfR&. It represents an opened CDROM device and stores information on the layout of the tracks on the disc&.
- .PP
- A frame is the base data unit of a CD&. fBCD_FPSfP frames is equal to 1 second of music&. SDL provides two macros for converting between time and frames: fBFRAMES_TO_MSF(f, M,S,F)fP and fBMSF_TO_FRAMESfP&.
- .SH "EXAMPLES"
- .PP
- .nf
- f(CWint min, sec, frame;
- int frame_offset;
- FRAMES_TO_MSF(cdrom->cur_frame, &min, &sec, &frame);
- printf("Current Position: %d minutes, %d seconds, %d frames
- ", min, sec, frame);
- frame_offset=MSF_TO_FRAMES(min, sec, frame);fR
- .fi
- .PP
- .SH "SEE ALSO"
- .PP
- fIfBSDL_CDOpenfPfR, fIfBSDL_CDtrackfRfR
- ..." created by instant / docbook-to-man, Tue 11 Sep 2001, 22:58