michael.heier/jellyfin
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add rounding to the time base check

Browse Source
This commit is contained in:
Orry Verducci 2021-10-31 17:04:04 +00:00
parent 3a89e88033
commit 9abe9e7e54
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
View File

@ -724,13 +724,17 @@ namespace MediaBrowser.MediaEncoding.Probing
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
// 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)
&& 1f / (stream.AverageFrameRate * 2) == GetFrameRate(stream.CodecTimeBase);
&& roundedTimeBaseFPS == roundedDoubleFrameRate;
if (videoInterlaced || h264MbaffCoded)
{
stream.IsInterlaced = true;