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Fix H264 level on safari fmp4

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Nyanmisaka 2022-04-22 17:36:36 +08:00 • committed by GitHub
parent 7c91543694
commit 4a1aa619d2
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1 changed files with 5 additions and 3 deletions
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8
MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
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@ -1062,10 +1062,12 @@ namespace MediaBrowser.Controller.MediaEncoding
}
else if (string.Equals(state.ActualOutputVideoCodec, "h264", StringComparison.OrdinalIgnoreCase))
{
// Clients may direct play higher than level 41, but there's no reason to transcode higher.
if (requestLevel >= 41)
// Transcode to level 5.1 and lower for maximum compatibility.
// h264 4k 30fps requires at least level 5.1 otherwise it will break on safari fmp4.
// https://en.wikipedia.org/wiki/Advanced_Video_Coding#Levels
if (requestLevel >= 51)
{
return "41";
return "51";
}
}
}