syntax = "proto3";
package media_set;

option go_package = "pb/media_set";

import "google/protobuf/duration.proto";

message MediaSet {
  message Audio {
    int64 bytes = 1;
    int32 channels = 2;
    int64 approx_frames = 3;
    int64 frames = 4;
    int32 sample_rate = 5;
  };

  message Video {
    int64 bytes = 1;
    google.protobuf.Duration duration = 2;
    int32 thumbnail_width = 3;
    int32 thumbnail_height = 4;
  };

  string id = 1;
  Audio audio = 2;
  Video video = 3;
  bool loaded = 4;
};

message FetchAudioProgress {
  float percent_completed = 2;
  repeated int32 peaks = 1;
}

message FetchRequest {
  string id = 1;
}

message FetchAudioRequest {
  string id = 1;
  int32 num_bins = 2;
}

service FetchService {
  rpc Fetch(FetchRequest) returns (MediaSet) {}
  rpc FetchAudio(FetchAudioRequest) returns (stream FetchAudioProgress) {}
}