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Merge pull request #8472 from jgriff6/subs

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Fix subtitle selection behaviour
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Claus Vium 2022-10-12 07:22:47 +02:00 committed by GitHub
commit fc78a6c35c
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1 changed files with 16 additions and 16 deletions
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32
Emby.Server.Implementations/Library/MediaStreamSelector.cs
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@ -45,42 +45,42 @@ namespace Emby.Server.Implementations.Library
.ThenByDescending(x => x.IsForced && string.Equals(x.Language, audioTrackLanguage, StringComparison.OrdinalIgnoreCase))
.ThenByDescending(x => x.IsForced)
.ThenByDescending(x => x.IsDefault)
.ThenByDescending(x => preferredLanguages.Contains(x.Language, StringComparison.OrdinalIgnoreCase))
.ToList();
MediaStream? stream = null;
if (mode == SubtitlePlaybackMode.Default)
{
// Prefer embedded metadata over smart logic
stream = sortedStreams.FirstOrDefault(s => s.IsExternal || s.IsForced || s.IsDefault);
// if the audio language is not understood by the user, load their preferred subs, if there are any
if (stream == null && !preferredLanguages.Contains(audioTrackLanguage, StringComparison.OrdinalIgnoreCase))
{
stream = sortedStreams.FirstOrDefault(s => !s.IsForced && preferredLanguages.Contains(s.Language, StringComparison.OrdinalIgnoreCase));
}
// Load subtitles according to external, forced and default flags.
stream = sortedStreams.FirstOrDefault(x => x.IsExternal || x.IsForced || x.IsDefault);
}
else if (mode == SubtitlePlaybackMode.Smart)
{
// if the audio language is not understood by the user, load their preferred subs, if there are any
// Only attempt to load subtitles if the audio language is not one of the user's preferred subtitle languages.
// If no subtitles of preferred language available, use default behaviour.
if (!preferredLanguages.Contains(audioTrackLanguage, StringComparison.OrdinalIgnoreCase))
{
stream = streams.FirstOrDefault(s => !s.IsForced && preferredLanguages.Contains(s.Language, StringComparison.OrdinalIgnoreCase)) ??
streams.FirstOrDefault(s => preferredLanguages.Contains(s.Language, StringComparison.OrdinalIgnoreCase));
stream = sortedStreams.FirstOrDefault(x => preferredLanguages.Contains(x.Language, StringComparison.OrdinalIgnoreCase)) ??
sortedStreams.FirstOrDefault(x => x.IsExternal || x.IsForced || x.IsDefault);
}
else
{
// Respect forced flag.
stream = sortedStreams.FirstOrDefault(x => x.IsForced);
}
}
else if (mode == SubtitlePlaybackMode.Always)
{
// always load the most suitable full subtitles
stream = sortedStreams.FirstOrDefault(s => !s.IsForced);
// Always load (full/non-forced) subtitles of the user's preferred subtitle language if possible, otherwise default behaviour.
stream = sortedStreams.FirstOrDefault(x => !x.IsForced && preferredLanguages.Contains(x.Language, StringComparison.OrdinalIgnoreCase)) ??
sortedStreams.FirstOrDefault(x => x.IsExternal || x.IsForced || x.IsDefault);
}
else if (mode == SubtitlePlaybackMode.OnlyForced)
{
// always load the most suitable full subtitles
// Only load subtitles that are flagged forced.
stream = sortedStreams.FirstOrDefault(x => x.IsForced);
}
// load forced subs if we have found no suitable full subtitles
stream ??= sortedStreams.FirstOrDefault(s => s.IsForced && string.Equals(s.Language, audioTrackLanguage, StringComparison.OrdinalIgnoreCase));
return stream?.Index;
}