218158/af_volnorm.i.4

   1 typedef struct af_data_s {
   2 } af_data_t;
   3 typedef struct af_info_s {
   4         int (*open) (struct af_instance_s * vf);
   5 } af_info_t;
   6 typedef struct af_instance_s {
   7         af_data_t *(*play) (struct af_instance_s * af, af_data_t * data);
   8         void *setup;
   9 } af_instance_t;
  10 typedef struct af_volume_s {
  11         float mul;
  12         struct {
  13                 float avg;
  14                 int len;
  15         } *mem;
  16         float mid_s16;
  17 } af_volnorm_t;
  18 void method2_int16(af_volnorm_t * s, af_data_t * c)
  19 {
  20         register int i = 0;
  21         float avg = 0.0;
  22         for (i = 0; i < 100; ++i)
  23                 avg += s->mem[i].avg * (float)s->mem[i].len;
  24         s->mul = avg;
  25 }
  26 void play(struct af_instance_s *af, af_data_t * data)
  27 {
  28         af_volnorm_t *s = af->setup;
  29         method2_int16(s, data);
  30 }
  31 void af_open(af_instance_t * af)
  32 {
  33         af->play = play;
  34 }
  35
  36 af_info_t af_info_volnorm = {
  37         af_open
  38 };