// This file defines the protocol between Muxer and classes for generating MPD
// files.

syntax = "proto2";

option optimize_for = LITE_RUNTIME;

package dash_packager;

message Range {
  optional uint64 begin = 1;
  optional uint64 end = 2;
}

message MediaInfo {
  message VideoInfo {
    optional string codec = 1;
    optional uint32 width = 2;
    optional uint32 height = 3;

    // Relative to |time_scale|. IOW |time_scale| / |frame_duration| is the
    // framerate.
    optional uint64 frame_duration = 4;

    optional bytes decoder_config = 5;
  }

  message AudioInfo {
    optional string codec = 1;
    optional uint32 sampling_frequency = 2;
    optional uint32 num_channels = 3;
    optional string language = 4;
    optional bytes decoder_config = 5;
  }

  message TextInfo {
    optional string format = 1;
    optional string language = 2;
  }

  message ContentProtection {
    optional bytes key_id = 1;
    optional bytes pssh = 2;
  }

  optional uint32 bandwidth = 1;
  optional uint32 time_scale = 2;
  repeated VideoInfo video_info = 3;
  repeated AudioInfo audio_info = 4;
  repeated TextInfo text_info = 5;
  repeated ContentProtection content_protections = 6;

  // VOD only.
  optional Range init_range = 7;
  optional Range index_range = 8;
  optional string media_file_name = 9;

  // This value is relative to |time_scale|.
  optional uint64 media_duration = 10;
  // END VOD only.

  // LIVE only.
  optional string init_segment_name = 11;
  optional string segment_template = 12;

  // This value is the user input “segment duration”.
  // This value is not necessarily the same as the value passed to
  // MpdNotifier::NotifyNewSegment().
  optional uint64 segment_duration = 13;
  // END LIVE only.
}