mirror of
https://git.do.srb2.org/STJr/SRB2.git
synced 2024-11-26 22:31:10 +00:00
70 lines
1.5 KiB
C++
70 lines
1.5 KiB
C++
// C++ example that opens a game music file and records 10 seconds to "out.wav"
|
|
|
|
#include "gme/Music_Emu.h"
|
|
|
|
#include "Wave_Writer.h"
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
void handle_error( const char* str );
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
const char *filename = "test.nsf"; /* Default file to open */
|
|
if ( argc >= 2 )
|
|
filename = argv[1];
|
|
|
|
long sample_rate = 44100; // number of samples per second
|
|
// index of track to play (0 = first)
|
|
int track = argc >= 3 ? atoi(argv[2]) : 0;
|
|
|
|
// 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 );
|
|
}
|
|
}
|