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// 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/Music_Emu.h"
#include "Wave_Writer.h"
#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)
// Determine file type
gme_type_t file_type;
handle_error( gme_identify_file( filename, &file_type ) );
if ( !file_type )
handle_error( "Unsupported music type" );
// Create emulator and set sample rate
Music_Emu* emu = file_type->new_emu();
if ( !emu )
handle_error( "Out of memory" );
handle_error( emu->set_sample_rate( sample_rate ) );
// Load music file into emulator
handle_error( emu->load_file( filename ) );
// Start track
handle_error( emu->start_track( track ) );
// Begin writing to wave file
Wave_Writer wave( sample_rate, "out.wav" );
wave.enable_stereo();
// Record 10 seconds of track
while ( emu->tell() < 10 * 1000L )
{
// Sample buffer
const long size = 1024; // can be any multiple of 2
short buf [size];
// Fill buffer
handle_error( emu->play( size, buf ) );
// Write samples to wave file
wave.write( buf, size );
}
// Cleanup
delete emu;
return 0;
}
void handle_error( const char* str )
{
if ( str )
{
printf( "Error: %s\n", str ); getchar();
exit( EXIT_FAILURE );
}
}
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