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Add SUPPLEMENTAL-CODECS for Dolby Vision video with fallbacks (#12605)

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gnattu 2024-09-08 01:17:16 +08:00 • committed by GitHub
parent 5a8a19e07b
commit ced2d21f7b
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44
Jellyfin.Api/Helpers/DynamicHlsHelper.cs
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@ -304,6 +304,8 @@ public class DynamicHlsHelper
AppendPlaylistCodecsField(playlistBuilder, state);
AppendPlaylistSupplementalCodecsField(playlistBuilder, state);
AppendPlaylistResolutionField(playlistBuilder, state);
AppendPlaylistFramerateField(playlistBuilder, state);
@ -406,6 +408,48 @@ public class DynamicHlsHelper
}
}
/// <summary>
/// Appends a SUPPLEMENTAL-CODECS field containing formatted strings of
/// the active streams output Dolby Vision Videos.
/// </summary>
/// <seealso cref="AppendPlaylist(StringBuilder, StreamState, string, int, string)"/>
/// <seealso cref="GetPlaylistVideoCodecs(StreamState, string, int)"/>
/// <param name="builder">StringBuilder to append the field to.</param>
/// <param name="state">StreamState of the current stream.</param>
private void AppendPlaylistSupplementalCodecsField(StringBuilder builder, StreamState state)
{
// Dolby Vision currently cannot exist when transcoding
if (!EncodingHelper.IsCopyCodec(state.OutputVideoCodec))
{
return;
}
var dvProfile = state.VideoStream.DvProfile;
var dvLevel = state.VideoStream.DvLevel;
var dvRangeString = state.VideoStream.VideoRangeType switch
{
VideoRangeType.DOVIWithHDR10 => "db1p",
VideoRangeType.DOVIWithHLG => "db4h",
_ => string.Empty
};
if (dvProfile is null || dvLevel is null || string.IsNullOrEmpty(dvRangeString))
{
return;
}
var dvFourCc = string.Equals(state.ActualOutputVideoCodec, "av1", StringComparison.OrdinalIgnoreCase) ? "dav1" : "dvh1";
builder.Append(",SUPPLEMENTAL-CODECS=\"")
.Append(dvFourCc)
.Append('.')
.Append(dvProfile.Value.ToString("D2", CultureInfo.InvariantCulture))
.Append('.')
.Append(dvLevel.Value.ToString("D2", CultureInfo.InvariantCulture))
.Append('/')
.Append(dvRangeString)
.Append('"');
}
/// <summary>
/// Appends a RESOLUTION field containing the resolution of the output stream.
/// </summary>