1.1 --- a/convert/spc_convert.c	Fri Oct 21 06:21:33 2011 -0700
     1.2 +++ b/convert/spc_convert.c	Fri Oct 21 06:44:35 2011 -0700
     1.3 @@ -1,6 +1,6 @@
     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 +   Usage: spc_convert -s seconds -i input.spc -o output.wav
     1.8  */
     1.9  
    1.10  #include "snes_spc/spc.h"
    1.11 @@ -14,12 +14,21 @@
    1.12    SNES_SPC* snes_spc = spc_new();
    1.13    SPC_Filter* filter = spc_filter_new();
    1.14    if ( !snes_spc || !filter ) error( "Out of memory" );
    1.15 -	
    1.16 +  
    1.17 +  int seconds = atoi(argv[2]);
    1.18 +
    1.19 +  if (seconds <=0){
    1.20 +    error("seconds must be positive.");
    1.21 +  }
    1.22 +
    1.23 +  if (argc != 7) { 
    1.24 +    error("Incorrect Arguments\n Sample invocation: \n  spc_convert -s 5 -i input.spc -o output.wav");
    1.25 +  }
    1.26    /* Load SPC */
    1.27    {
    1.28      /* Load file into memory */
    1.29      long spc_size;
    1.30 -    void* spc = load_file( (argc > 1) ? argv [1] : "test.spc", &spc_size );
    1.31 +    void* spc = load_file( argv[4] , &spc_size );
    1.32  		
    1.33      /* Load SPC data into emulator */
    1.34      error( spc_load_spc( snes_spc, spc, spc_size ) );
    1.35 @@ -33,9 +42,9 @@
    1.36    }
    1.37  	
    1.38    /* Record 20 seconds to wave file */
    1.39 -  wave_open( spc_sample_rate, "out.wav" );
    1.40 +  wave_open( spc_sample_rate, argv[6] );
    1.41    wave_enable_stereo();
    1.42 -  while ( wave_sample_count() < 20 * spc_sample_rate * 2 )
    1.43 +  while ( wave_sample_count() < seconds * spc_sample_rate * 2 )
    1.44      {
    1.45        /* Play into buffer */
    1.46  #define BUF_SIZE 2048