diff options
| author | Orry Verducci <orry@orryverducci.co.uk> | 2021-06-24 17:51:35 +0100 |
|---|---|---|
| committer | Orry Verducci <orry@orryverducci.co.uk> | 2021-06-24 17:51:35 +0100 |
| commit | d5b63092ed1b4b6ef4da2a5cdccec472aa1c06b3 (patch) | |
| tree | 2efea035df4f4a37ffd394e37362fbaa1335412d | |
| parent | 94056049131a8573d7a4d0690da04c0e8bc240ad (diff) | |
Add H.264 MBAFF interlace check
Use the codec time base to determine if a MBAFF coded H.264 file is interlaced.
| -rw-r--r-- | MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs index bbff5daca..dd3faf576 100644 --- a/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs +++ b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs @@ -686,11 +686,6 @@ 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)) { @@ -746,6 +741,19 @@ 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 check if the codec timebase duration is half the reported frame rate duration to + // determine if the file is interlaced + 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) + && 1f / (stream.AverageFrameRate * 2) == GetFrameRate(stream.CodecTimeBase); + if (videoInterlaced || h264MbaffCoded) + { + stream.IsInterlaced = true; + } + if (isAudio || string.Equals(stream.Codec, "gif", StringComparison.OrdinalIgnoreCase) || string.Equals(stream.Codec, "png", StringComparison.OrdinalIgnoreCase)) { |