main.c

   1 #include "stdio.h"
   2 #include "soundout.h"
   3 #include "wavefile.h"
   4 #include "effects.h"
   5 #include "graph.h"
   6
   7 int main(int argc, char **argv)
   8 {
   9     struct graph _graph, *graph = &_graph;
  10     struct graphnode *node;
  11     struct aformat af;
  12     struct effect *ef1;
  13
  14     if (graph_create(graph)){
  15         fprintf(stderr, "cannot create graph\n");
  16         return 1;
  17     }
  18
  19     ///// create wave file source /////
  20
  21     ef1 = wavefile_source_create("/home/aoe/reflections.wav");
  22     if (!ef1){
  23         fprintf(stderr, "cannot open wave file\n");
  24         graph_destroy(graph);
  25         return 1;
  26     }
  27
  28     node = graphnode_create();
  29     if (!node){
  30         fprintf(stderr, "cannot create graph node\n");
  31         ef1->vtab->destroy(ef1);
  32         graph_destroy(graph);
  33         return 1;
  34     }
  35
  36     node->ef = ef1;
  37     graph_append_node(graph, node);
  38
  39     ///// create a distortion effect (turn volume down!) /////
  40
  41     ef1 = distortion_create();
  42     if (!ef1){
  43         fprintf(stderr, "cannot create distortion effect\n");
  44         graph_destroy(graph);
  45         return 1;
  46     }
  47
  48     node = graphnode_create();
  49     if (!node){
  50         fprintf(stderr, "cannot create graph node\n");
  51         ef1->vtab->destroy(ef1);
  52         graph_destroy(graph);
  53         return 1;
  54     }
  55
  56     node->ef = ef1;
  57     graph_append_node(graph, node);
  58
  59     ///// create a silly effect (turn volume down!) /////
  60
  61     ef1 = silly_effect_create();
  62     if (!ef1){
  63         fprintf(stderr, "cannot create distortion effect\n");
  64         graph_destroy(graph);
  65         return 1;
  66     }
  67
  68     node = graphnode_create();
  69     if (!node){
  70         fprintf(stderr, "cannot create graph node\n");
  71         ef1->vtab->destroy(ef1);
  72         graph_destroy(graph);
  73         return 1;
  74     }
  75
  76     node->ef = ef1;
  77     graph_append_node(graph, node);
  78
  79     ///// create the play sink /////
  80
  81     af.srate = 44100;
  82     af.bits = 16;
  83     af.channels = 2;
  84     ef1 = play_sink_create(&af);
  85     if (!ef1){
  86         fprintf(stderr, "cannot open /dev/dsp\n");
  87         graph_destroy(graph);
  88         return 1;
  89     }
  90
  91     node = graphnode_create();
  92     if (!node){
  93         fprintf(stderr, "cannot create graph node\n");
  94         ef1->vtab->destroy(ef1);
  95         graph_destroy(graph);
  96         return 1;
  97     }
  98
  99     node->ef = ef1;
 100     graph_append_node(graph, node);
 101
 102     // run the graph.
 103     // Hold your ears!
 104     for (;;){
 105         if (graph_run(graph, 4410)){
 106             break;
 107         }
 108     }
 109
 110     return 0;
 111 }