syntax = "proto3";
package media_set;

option go_package = "pb/media_set";

import "google/protobuf/duration.proto";

message MediaSet {
  string id = 1;
  string youtube_id = 2;

  int32 audio_channels = 3;
  int64 audio_approx_frames = 4;
  int64 audio_frames = 5;
  int32 audio_sample_rate = 6;
  int32 audio_youtube_itag = 7;
  string audio_mime_type = 8;

  google.protobuf.Duration video_duration = 9;
  int32 video_youtube_itag = 10;
  string video_mime_type = 11;
};

message GetAudioProgress {
  repeated int32 peaks = 1;
  float percent_complete = 2;
  string url = 3;
}

message GetRequest {
  string youtube_id = 1;
}

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

message GetAudioSegmentRequest {
  string id = 1;
  int32 num_bins = 2;
  int64 start_frame = 3;
  int64 end_frame = 4;
}

message GetAudioSegmentResponse {
  repeated int32 peaks = 1;
}

message GetVideoRequest {
  string id = 1;
}


message GetVideoProgress {
  float percent_complete = 1;
  string url = 2;
}

message GetVideoThumbnailRequest {
  string id = 1;
}

message GetVideoThumbnailResponse {
  bytes image = 1;
  int32 width = 2;
  int32 height = 3;
}

service MediaSetService {
  rpc Get(GetRequest) returns (MediaSet) {}
  rpc GetAudio(GetAudioRequest) returns (stream GetAudioProgress) {}
  rpc GetAudioSegment(GetAudioSegmentRequest) returns (GetAudioSegmentResponse) {}
  rpc GetVideo(GetVideoRequest) returns (stream GetVideoProgress) {}
  rpc GetVideoThumbnail(GetVideoThumbnailRequest) returns (GetVideoThumbnailResponse) {}
}