31             MakeChild<UnsignedIntParser>(Id::kTrackNumber,  in TrackEntryParser()
33             MakeChild<UnsignedIntParser>(Id::kTrackUid, &TrackEntry::track_uid),  in TrackEntryParser()
34             MakeChild<IntParser<TrackType>>(Id::kTrackType,  in TrackEntryParser()
36             MakeChild<BoolParser>(Id::kFlagEnabled, &TrackEntry::is_enabled),  in TrackEntryParser()
37             MakeChild<BoolParser>(Id::kFlagDefault, &TrackEntry::is_default),  in TrackEntryParser()
38             MakeChild<BoolParser>(Id::kFlagForced, &TrackEntry::is_forced),  in TrackEntryParser()
39             MakeChild<BoolParser>(Id::kFlagLacing, &TrackEntry::uses_lacing),  in TrackEntryParser()
40             MakeChild<UnsignedIntParser>(Id::kDefaultDuration,  in TrackEntryParser()
42             MakeChild<StringParser>(Id::kName, &TrackEntry::name),  in TrackEntryParser()
43             MakeChild<StringParser>(Id::kLanguage, &TrackEntry::language),  in TrackEntryParser()
44             MakeChild<StringParser>(Id::kCodecId, &TrackEntry::codec_id),  in TrackEntryParser()
45             MakeChild<BinaryParser>(Id::kCodecPrivate,  in TrackEntryParser()
47             MakeChild<StringParser>(Id::kCodecName, &TrackEntry::codec_name),  in TrackEntryParser()
48             MakeChild<UnsignedIntParser>(Id::kCodecDelay,  in TrackEntryParser()
50             MakeChild<UnsignedIntParser>(Id::kSeekPreRoll,  in TrackEntryParser()
52             MakeChild<VideoParser>(Id::kVideo, &TrackEntry::video),  in TrackEntryParser()
53             MakeChild<AudioParser>(Id::kAudio, &TrackEntry::audio),  in TrackEntryParser()
54             MakeChild<ContentEncodingsParser>(  in TrackEntryParser()