142 lines
3.1 KiB
Dart
142 lines
3.1 KiB
Dart
// lib/metadata/metadata_model.dart
|
|
import 'dart:typed_data';
|
|
|
|
/// 从音频文件读取的原始元数据（未经任何处理）
|
|
class RawMetadata {
|
|
final String title;
|
|
final String artist;
|
|
final String album;
|
|
final String albumArtist;
|
|
final String composer;
|
|
final String genre;
|
|
final int year;
|
|
final int trackNumber;
|
|
final int discNumber;
|
|
final Uint8List? artwork;
|
|
|
|
const RawMetadata({
|
|
this.title = '',
|
|
this.artist = '',
|
|
this.album = '',
|
|
this.albumArtist = '',
|
|
this.composer = '',
|
|
this.genre = '',
|
|
this.year = 0,
|
|
this.trackNumber = 0,
|
|
this.discNumber = 0,
|
|
this.artwork,
|
|
});
|
|
|
|
/// 判断是否为空（没有任何有效信息）
|
|
bool get isEmpty =>
|
|
title.isEmpty &&
|
|
artist.isEmpty &&
|
|
album.isEmpty &&
|
|
albumArtist.isEmpty &&
|
|
composer.isEmpty &&
|
|
genre.isEmpty &&
|
|
year == 0 &&
|
|
trackNumber == 0 &&
|
|
discNumber == 0 &&
|
|
artwork == null;
|
|
|
|
bool get isNotEmpty => !isEmpty;
|
|
}
|
|
|
|
/// 经过标准化处理后的元数据
|
|
class NormalizedMetadata {
|
|
final String title;
|
|
final String artist;
|
|
final String album;
|
|
final String albumArtist;
|
|
final String composer;
|
|
final String genre;
|
|
final int year;
|
|
final int trackNumber;
|
|
final int discNumber;
|
|
final Uint8List? artwork;
|
|
|
|
const NormalizedMetadata({
|
|
this.title = '',
|
|
this.artist = '',
|
|
this.album = '',
|
|
this.albumArtist = '',
|
|
this.composer = '',
|
|
this.genre = '',
|
|
this.year = 0,
|
|
this.trackNumber = 0,
|
|
this.discNumber = 0,
|
|
this.artwork,
|
|
});
|
|
|
|
bool get isEmpty =>
|
|
title.isEmpty &&
|
|
artist.isEmpty &&
|
|
album.isEmpty &&
|
|
albumArtist.isEmpty &&
|
|
composer.isEmpty &&
|
|
genre.isEmpty &&
|
|
year == 0 &&
|
|
trackNumber == 0 &&
|
|
discNumber == 0 &&
|
|
artwork == null;
|
|
|
|
bool get isNotEmpty => !isEmpty;
|
|
}
|
|
|
|
/// 带置信度的候选元数据
|
|
class CandidateMetadata {
|
|
final NormalizedMetadata metadata;
|
|
final double confidence; // 0.0 ~ 1.0
|
|
final Map<String, double> evidence; // 证据来源权重
|
|
|
|
const CandidateMetadata({
|
|
required this.metadata,
|
|
required this.confidence,
|
|
this.evidence = const {},
|
|
});
|
|
}
|
|
|
|
/// 最终确认的元数据
|
|
class FinalMetadata {
|
|
final String title;
|
|
final String artist;
|
|
final String album;
|
|
final String albumArtist;
|
|
final String composer;
|
|
final String genre;
|
|
final int year;
|
|
final int trackNumber;
|
|
final int discNumber;
|
|
final Uint8List? artwork;
|
|
final String source; // 'file_tag', 'filename', 'cache', 'user_corrected'
|
|
|
|
const FinalMetadata({
|
|
this.title = '',
|
|
this.artist = '',
|
|
this.album = '',
|
|
this.albumArtist = '',
|
|
this.composer = '',
|
|
this.genre = '',
|
|
this.year = 0,
|
|
this.trackNumber = 0,
|
|
this.discNumber = 0,
|
|
this.artwork,
|
|
this.source = 'unknown',
|
|
});
|
|
|
|
bool get isEmpty =>
|
|
title.isEmpty &&
|
|
artist.isEmpty &&
|
|
album.isEmpty &&
|
|
albumArtist.isEmpty &&
|
|
composer.isEmpty &&
|
|
genre.isEmpty &&
|
|
year == 0 &&
|
|
trackNumber == 0 &&
|
|
discNumber == 0 &&
|
|
artwork == null;
|
|
|
|
bool get isNotEmpty => !isEmpty;
|
|
}
|