syntax = "proto2"; package video_streaming; import "misc/common.proto"; message FormatInitializationMetadata { optional string video_id = 1; optional .misc.FormatId format_id = 2; optional int64 end_time_ms = 3; optional int64 end_segment_number = 4; optional string mime_type = 5; optional .misc.Range init_range = 6; optional .misc.Range index_range = 7; optional int64 field8 = 8; optional int64 duration_units = 9; optional int64 duration_timescale = 10; }