Initial commit

2026-07-14 11:11:36 +08:00
commit 656499cf94
604 changed files with 119518 additions and 0 deletions
@@ -0,0 +1,82 @@
+import '../../../core/contracts/library.dart';
+import '../../../core/infra/emby_api/playback_resolver.dart';
+
+
+class StreamSelection {
+
+  final List<EmbyRawMediaStream> subtitles;
+
+
+  final List<EmbyRawMediaStream> audios;
+
+
+  final int preferredSubtitleStreamIndex;
+
+
+  final int? preferredAudioStreamIndex;
+
+  const StreamSelection({
+    required this.subtitles,
+    required this.audios,
+    required this.preferredSubtitleStreamIndex,
+    required this.preferredAudioStreamIndex,
+  });
+}
+
+
+EmbyRawMediaSource? resolveActiveMediaSource(
+  CrossServerSourceCard? selectedCrossServerCard,
+  List<EmbyRawMediaSource> localSources,
+  int selectedSourceIdx,
+) {
+  return selectedCrossServerCard?.mediaSource ??
+      (selectedSourceIdx < localSources.length
+          ? localSources[selectedSourceIdx]
+          : null);
+}
+
+
+StreamSelection resolveStreamSelection(
+  EmbyRawMediaSource? source,
+  int? selectedSubtitleIdx,
+  int selectedAudioIdx,
+) {
+  final subtitles = (source?.MediaStreams ?? [])
+      .where((s) => s.Type == 'Subtitle')
+      .where((s) {
+        final isExternal =
+            (s.IsExternal ?? false) ||
+            s.DeliveryMethod == 'External' ||
+            (s.DeliveryUrl != null && s.DeliveryUrl!.isNotEmpty);
+        if (!isExternal) return true;
+        return PlaybackResolver.isTextSubtitleCodec(s.Codec);
+      })
+      .toList();
+  final audios = (source?.MediaStreams ?? [])
+      .where((s) => s.Type == 'Audio')
+      .toList();
+  final preferredSubtitleStreamIndex =
+      selectedSubtitleIdx != null && selectedSubtitleIdx < subtitles.length
+      ? subtitles[selectedSubtitleIdx].Index ?? -1
+      : -1;
+  final preferredAudioStreamIndex = selectedAudioIdx < audios.length
+      ? audios[selectedAudioIdx].Index
+      : null;
+  return StreamSelection(
+    subtitles: subtitles,
+    audios: audios,
+    preferredSubtitleStreamIndex: preferredSubtitleStreamIndex,
+    preferredAudioStreamIndex: preferredAudioStreamIndex,
+  );
+}
+
+
+int resolveDefaultSourceIndex(
+  List<EmbyRawMediaSource> sortedSources,
+  String? rememberedMediaSourceId, {
+  int fallback = 0,
+}) {
+  if (rememberedMediaSourceId == null) return fallback;
+  final idx = sortedSources.indexWhere((s) => s.Id == rememberedMediaSourceId);
+  return idx >= 0 ? idx : fallback;
+}