1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/convert/spc_convert.c	Fri Oct 21 06:21:33 2011 -0700
     1.3 @@ -0,0 +1,57 @@
     1.4 +/* Records SPC into wave file. Uses dsp_filter to give more authentic sound.
     1.5 +
     1.6 +   Usage: play_spc [-s seconds] input.spc output.wav
     1.7 +*/
     1.8 +
     1.9 +#include "snes_spc/spc.h"
    1.10 +
    1.11 +#include "demo/wave_writer.h"
    1.12 +#include "demo/demo_util.h" /* error(), load_file() */
    1.13 +
    1.14 +int main( int argc, char** argv )
    1.15 +{
    1.16 +  /* Create emulator and filter */
    1.17 +  SNES_SPC* snes_spc = spc_new();
    1.18 +  SPC_Filter* filter = spc_filter_new();
    1.19 +  if ( !snes_spc || !filter ) error( "Out of memory" );
    1.20 +	
    1.21 +  /* Load SPC */
    1.22 +  {
    1.23 +    /* Load file into memory */
    1.24 +    long spc_size;
    1.25 +    void* spc = load_file( (argc > 1) ? argv [1] : "test.spc", &spc_size );
    1.26 +		
    1.27 +    /* Load SPC data into emulator */
    1.28 +    error( spc_load_spc( snes_spc, spc, spc_size ) );
    1.29 +    free( spc ); /* emulator makes copy of data */
    1.30 +		
    1.31 +    /* Most SPC files have garbage data in the echo buffer, so clear that */
    1.32 +    spc_clear_echo( snes_spc );
    1.33 +		
    1.34 +    /* Clear filter before playing */
    1.35 +    spc_filter_clear( filter );
    1.36 +  }
    1.37 +	
    1.38 +  /* Record 20 seconds to wave file */
    1.39 +  wave_open( spc_sample_rate, "out.wav" );
    1.40 +  wave_enable_stereo();
    1.41 +  while ( wave_sample_count() < 20 * spc_sample_rate * 2 )
    1.42 +    {
    1.43 +      /* Play into buffer */
    1.44 +#define BUF_SIZE 2048
    1.45 +      short buf [BUF_SIZE];
    1.46 +      error( spc_play( snes_spc, BUF_SIZE, buf ) );
    1.47 +		
    1.48 +      /* Filter samples */
    1.49 +      spc_filter_run( filter, buf, BUF_SIZE );
    1.50 +		
    1.51 +      wave_write( buf, BUF_SIZE );
    1.52 +    }
    1.53 +	
    1.54 +  /* Cleanup */
    1.55 +  spc_filter_delete( filter );
    1.56 +  spc_delete( snes_spc );
    1.57 +  wave_close();
    1.58 +	
    1.59 +  return 0;
    1.60 +}