private static SubtitleProfile GetExternalSubtitleProfile(MediaStream subtitleStream, SubtitleProfile[] subtitleProfiles, PlayMethod playMethod, bool allowConversion)
{
foreach (SubtitleProfile profile in subtitleProfiles)
{
if (profile.Method != SubtitleDeliveryMethod.External && profile.Method != SubtitleDeliveryMethod.Hls)
{
continue;
}
if (profile.Method == SubtitleDeliveryMethod.Hls && playMethod != PlayMethod.Transcode)
{
continue;
}
if (!profile.SupportsLanguage(subtitleStream.Language))
{
continue;
}
if ((profile.Method == SubtitleDeliveryMethod.External && subtitleStream.IsTextSubtitleStream == MediaStream.IsTextFormat(profile.Format)) ||
(profile.Method == SubtitleDeliveryMethod.Hls && subtitleStream.IsTextSubtitleStream))
{
bool requiresConversion = !StringHelper.EqualsIgnoreCase(subtitleStream.Codec, profile.Format);
if (!requiresConversion)
{
return(profile);
}
if (!allowConversion)
{
continue;
}
if (subtitleStream.IsTextSubtitleStream && subtitleStream.SupportsExternalStream && subtitleStream.SupportsSubtitleConversionTo(profile.Format))
{
return(profile);
}
}
}
return(null);
}
