Kart-Public/libs/gme/demo/basics.c
2014-03-15 13:11:35 -04:00

57 lines
1.3 KiB
C

/* C example that opens a game music file and records 10 seconds to "out.wav" */
static char filename [] = "test.nsf"; /* opens this file (can be any music type) */
#include "gme/gme.h"
#include "Wave_Writer.h" /* wave_ functions for writing sound file */
#include <stdlib.h>
#include <stdio.h>
void handle_error( const char* str );
int main()
{
long sample_rate = 44100; /* number of samples per second */
int track = 0; /* index of track to play (0 = first) */
/* Open music file in new emulator */
Music_Emu* emu;
handle_error( gme_open_file( filename, &emu, sample_rate ) );
/* Start track */
handle_error( gme_start_track( emu, track ) );
/* Begin writing to wave file */
wave_open( sample_rate, "out.wav" );
wave_enable_stereo();
/* Record 10 seconds of track */
while ( gme_tell( emu ) < 10 * 1000L )
{
/* Sample buffer */
#define buf_size 1024 /* can be any multiple of 2 */
short buf [buf_size];
/* Fill sample buffer */
handle_error( gme_play( emu, buf_size, buf ) );
/* Write samples to wave file */
wave_write( buf, buf_size );
}
/* Cleanup */
gme_delete( emu );
wave_close();
return 0;
}
void handle_error( const char* str )
{
if ( str )
{
printf( "Error: %s\n", str ); getchar();
exit( EXIT_FAILURE );
}
}