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| author | Cody Robibero <cody@robibe.ro> | 2021-12-11 13:54:52 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-12-11 13:54:52 -0700 |
| commit | 2a82f8dc4028161c3eeabd630f284cafb412db11 (patch) | |
| tree | e0aee20bbfdf7fc2ba9edf1615332405dd1b39cd | |
| parent | 8b4a36d6f729d8f573e7b5c7e99950b7742b635e (diff) | |
| parent | e446e9fde935ad5744500e6efaab8fcacf89b600 (diff) | |
Merge pull request #6222 from orryverducci/mbaff-interlace-detection
| -rw-r--r-- | MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs index 1b3a4fa0f..bf6146e2b 100644 --- a/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs +++ b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs @@ -649,11 +649,6 @@ namespace MediaBrowser.MediaEncoding.Probing stream.IsAVC = false; } - if (!string.IsNullOrWhiteSpace(streamInfo.FieldOrder) && !string.Equals(streamInfo.FieldOrder, "progressive", StringComparison.OrdinalIgnoreCase)) - { - stream.IsInterlaced = true; - } - // Filter out junk if (!string.IsNullOrWhiteSpace(streamInfo.CodecTagString) && !streamInfo.CodecTagString.Contains("[0]", StringComparison.OrdinalIgnoreCase)) { @@ -725,6 +720,23 @@ namespace MediaBrowser.MediaEncoding.Probing stream.AverageFrameRate = GetFrameRate(streamInfo.AverageFrameRate); stream.RealFrameRate = GetFrameRate(streamInfo.RFrameRate); + // Some interlaced H.264 files in mp4 containers using MBAFF coding aren't flagged as being interlaced by FFprobe, + // so for H.264 files we also calculate the frame rate from the codec time base and check if it is double the reported + // frame rate (both rounded to the nearest integer) to determine if the file is interlaced + float roundedTimeBaseFPS = MathF.Round(1 / GetFrameRate(stream.CodecTimeBase) ?? 0); + float roundedDoubleFrameRate = MathF.Round(stream.AverageFrameRate * 2 ?? 0); + + bool videoInterlaced = !string.IsNullOrWhiteSpace(streamInfo.FieldOrder) + && !string.Equals(streamInfo.FieldOrder, "progressive", StringComparison.OrdinalIgnoreCase); + bool h264MbaffCoded = string.Equals(stream.Codec, "h264", StringComparison.OrdinalIgnoreCase) + && string.IsNullOrWhiteSpace(streamInfo.FieldOrder) + && roundedTimeBaseFPS == roundedDoubleFrameRate; + + if (videoInterlaced || h264MbaffCoded) + { + stream.IsInterlaced = true; + } + if (isAudio || string.Equals(stream.Codec, "mjpeg", StringComparison.OrdinalIgnoreCase) || string.Equals(stream.Codec, "gif", StringComparison.OrdinalIgnoreCase) |