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authorStan <stanislav.ionascu@gmail.com>2020-10-28 13:18:05 +0100
committerGitHub <noreply@github.com>2020-10-28 13:18:05 +0100
commit3bb8884e164857af01909d0f414f55ecf2a4f1e0 (patch)
treef03482a03d8523a17c36d74006bea35a8c7141d1 /MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
parentcd4641dca02bae552cc7ea1942b0efbd4b791bcb (diff)
parentbe2f27a0695e5f3102f79a2e246e971682cff603 (diff)
Merge branch 'master' into bdiso-playback
Diffstat (limited to 'MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs')
-rw-r--r--MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs10
1 files changed, 10 insertions, 0 deletions
diff --git a/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
index 22537a4d9..cdeefbbbd 100644
--- a/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
+++ b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
@@ -666,6 +666,16 @@ namespace MediaBrowser.MediaEncoding.Probing
stream.AverageFrameRate = GetFrameRate(streamInfo.AverageFrameRate);
stream.RealFrameRate = GetFrameRate(streamInfo.RFrameRate);
+ // Interlaced video streams in Matroska containers return the field rate instead of the frame rate
+ // as both the average and real frame rate, so we half the returned frame rates to get the correct values
+ //
+ // https://gitlab.com/mbunkus/mkvtoolnix/-/wikis/Wrong-frame-rate-displayed
+ if (stream.IsInterlaced && formatInfo.FormatName.Contains("matroska", StringComparison.OrdinalIgnoreCase))
+ {
+ stream.AverageFrameRate /= 2;
+ stream.RealFrameRate /= 2;
+ }
+
if (isAudio || string.Equals(stream.Codec, "gif", StringComparison.OrdinalIgnoreCase) ||
string.Equals(stream.Codec, "png", StringComparison.OrdinalIgnoreCase))
{