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58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
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/* Records SPC into wave file. Uses dsp_filter to give more authentic sound.
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Usage: play_spc [test.spc]
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*/
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#include "snes_spc/spc.h"
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#include "wave_writer.h"
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#include "demo_util.h" /* error(), load_file() */
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int main( int argc, char** argv )
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{
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/* Create emulator and filter */
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SNES_SPC* snes_spc = spc_new();
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SPC_Filter* filter = spc_filter_new();
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if ( !snes_spc || !filter ) error( "Out of memory" );
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/* Load SPC */
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{
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/* Load file into memory */
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long spc_size;
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void* spc = load_file( (argc > 1) ? argv [1] : "test.spc", &spc_size );
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/* Load SPC data into emulator */
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error( spc_load_spc( snes_spc, spc, spc_size ) );
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free( spc ); /* emulator makes copy of data */
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/* Most SPC files have garbage data in the echo buffer, so clear that */
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spc_clear_echo( snes_spc );
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/* Clear filter before playing */
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spc_filter_clear( filter );
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}
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/* Record 20 seconds to wave file */
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wave_open( spc_sample_rate, "out.wav" );
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wave_enable_stereo();
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while ( wave_sample_count() < 20 * spc_sample_rate * 2 )
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{
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/* Play into buffer */
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#define BUF_SIZE 2048
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short buf [BUF_SIZE];
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error( spc_play( snes_spc, BUF_SIZE, buf ) );
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/* Filter samples */
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spc_filter_run( filter, buf, BUF_SIZE );
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wave_write( buf, BUF_SIZE );
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}
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/* Cleanup */
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spc_filter_delete( filter );
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spc_delete( snes_spc );
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wave_close();
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return 0;
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}
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