syntax = "proto2";

package mixxx.track.io;

option optimize_for = LITE_RUNTIME;

message Waveform {
  enum Units {
    RMS = 0;
    AMPLITUDE = 1;
  }
  message Signal {
    repeated int32 value = 1;
    optional int32 channels = 2 [ default = 2 ];
    optional Units units = 3 [ default = RMS ];
    optional int32 max_value = 4;
    optional int32 min_value = 5;
  }
  message FilteredSignal {
    optional Signal low = 1;
    optional Signal mid = 2;
    optional Signal high = 3;
    optional double low_cutoff_frequency = 4;
    optional double mid_low_cutoff_frequency = 5;
    optional double mid_high_cutoff_frequency = 6;
    optional double high_cutoff_frequency = 7;
  }
  optional double visual_sample_rate = 1;
  optional double audio_visual_ratio = 2;
  optional Signal signal_all = 3;
  optional FilteredSignal signal_filtered = 4;
}