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CDDA file playback

To play a CDDA file, initialize the sound and use the functions “slCdOpen”, “slCdLoadFile”, “slCdGetStatus”.

[Sint32 slCdLoadFile (CDHN cdhn, CDBUF buf []);]

To play a CDDA file, specify as follows.

buf[ 0 ]. type = CDBUF_COPY;
buf[ 0 ]. trans.copy.addr = NULL;
buf[ 0 ]. trans.copy.unit = CDBUF_FORM1;
buf[ 0 ]. trans.copy.size = 0;
buf[ 1 ]. type = CDBUF_TERM;

Sample program 4 shows a CDDA file playback program example.

This sample program is a process for reading a CDDA file on a CD-ROM, and is an example of using a basic library for playing a CDDA file on a CD-ROM.
The procedure is described along Flow 12-4.

1. Performs initialization of graphics and other systems.
2. Performs sound initialization.
3. Initializes the CD-ROM system.
4. Opens a file.
   There is key information for classifying data in the input parameter of the function that opens the file, but since this information is unnecessary, do not select it here.
5. Play CDDA file.
   The CDDA file is played using the file handle and read area information of the return value of the file open function as parameters.
6. Executes the graphic library (function “slSynch ()”).
7. Get status information and check if CDDA file playback is finished.
   When playback ends, the loop ends.
   Call the function “slSynch ()” in this loop.

Flow 12-4 Sample program 4 (CDDA file playback sample_cd4 / main.c)

List 12-4 Sample program 4 (CDDA file playback sample_cd4 / main.c)

List 12-4 Sample program 4 (CDDA file playback sample_cd4 / main.c) (continued)

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