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comparison convert/spc_convert.c @ 3:95cdedd01422

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allow user to select number of seconds to convert
author Robert McIntyre <rlm@mit.edu>
date Fri, 21 Oct 2011 06:44:35 -0700
parents c3248c71ae74
children a37863126396
comparison
equal deleted inserted replaced
2:c3248c71ae74 3:95cdedd01422
1 /* Records SPC into wave file. Uses dsp_filter to give more authentic sound. 1 /* Records SPC into wave file. Uses dsp_filter to give more authentic sound.
2 2
3 Usage: play_spc [-s seconds] input.spc output.wav 3 Usage: spc_convert -s seconds -i input.spc -o output.wav
4 */ 4 */
5 5
6 #include "snes_spc/spc.h" 6 #include "snes_spc/spc.h"
7 7
8 #include "demo/wave_writer.h" 8 #include "demo/wave_writer.h"
12 { 12 {
13 /* Create emulator and filter */ 13 /* Create emulator and filter */
14 SNES_SPC* snes_spc = spc_new(); 14 SNES_SPC* snes_spc = spc_new();
15 SPC_Filter* filter = spc_filter_new(); 15 SPC_Filter* filter = spc_filter_new();
16 if ( !snes_spc || !filter ) error( "Out of memory" ); 16 if ( !snes_spc || !filter ) error( "Out of memory" );
17 17
18 int seconds = atoi(argv[2]);
19
20 if (seconds <=0){
21 error("seconds must be positive.");
22 }
23
24 if (argc != 7) {
25 error("Incorrect Arguments\n Sample invocation: \n spc_convert -s 5 -i input.spc -o output.wav");
26 }
18 /* Load SPC */ 27 /* Load SPC */
19 { 28 {
20 /* Load file into memory */ 29 /* Load file into memory */
21 long spc_size; 30 long spc_size;
22 void* spc = load_file( (argc > 1) ? argv [1] : "test.spc", &spc_size ); 31 void* spc = load_file( argv[4] , &spc_size );
23 32
24 /* Load SPC data into emulator */ 33 /* Load SPC data into emulator */
25 error( spc_load_spc( snes_spc, spc, spc_size ) ); 34 error( spc_load_spc( snes_spc, spc, spc_size ) );
26 free( spc ); /* emulator makes copy of data */ 35 free( spc ); /* emulator makes copy of data */
27 36
31 /* Clear filter before playing */ 40 /* Clear filter before playing */
32 spc_filter_clear( filter ); 41 spc_filter_clear( filter );
33 } 42 }
34 43
35 /* Record 20 seconds to wave file */ 44 /* Record 20 seconds to wave file */
36 wave_open( spc_sample_rate, "out.wav" ); 45 wave_open( spc_sample_rate, argv[6] );
37 wave_enable_stereo(); 46 wave_enable_stereo();
38 while ( wave_sample_count() < 20 * spc_sample_rate * 2 ) 47 while ( wave_sample_count() < seconds * spc_sample_rate * 2 )
39 { 48 {
40 /* Play into buffer */ 49 /* Play into buffer */
41 #define BUF_SIZE 2048 50 #define BUF_SIZE 2048
42 short buf [BUF_SIZE]; 51 short buf [BUF_SIZE];
43 error( spc_play( snes_spc, BUF_SIZE, buf ) ); 52 error( spc_play( snes_spc, BUF_SIZE, buf ) );