Live TV RealFrameRate detection inconsistent for Interlaced content

[IainB 3]

Regards interlaced video for live TV, I have trouble getting the Android app to use the correct RealFrameRate at 50

It properly detects it's a 1080i stream but sets the RealFrameRate to 25, which looks pretty awful.

If I leave and return to the channel a few times, I might get it to display correctly as 50

This is during a continuous 1080i stream, not as if it's changing via ad breaks etc.

Are there any recommended server side settings or App settings I can use to fix this?

 

Live TV via HDHomerun, and I'm using Android app 3.5.15 and Server 4.9.2.6 Beta

[Luke 42077]

 

Hi there, let's look at an example. Please attach the information requested in how to report a media playback issue. Thanks!

 

[IainB 3]

Screenshot and logs for initial attempt showing @25 and 2nd correct @50

LiveTV log.txt

Edited November 3, 2025 by IainB

[Luke 42077]

HI, if you click playback correction in the video player, how does that compare after that?

[IainB 3]

Thanks for the quick reply Luke,
Screenshot shows after playback correction.
Unfortunately, motion still looks bad.

[Luke 42077]

11 minutes ago, IainB said:

Thanks for the quick reply Luke,
Screenshot shows after playback correction.
Unfortunately, motion still looks bad.

Hi there, please attach the Emby server log from when the problem occurred:

How to Report a Problem

Thanks!

 

[IainB 3]

Hi Luke, I included the log in the previous post, shows the stream with RealFrameRate at 25, the at 50 on the second attempt

[Luke 42077]

15 minutes ago, IainB said:

Hi Luke, I included the log in the previous post, shows the stream with RealFrameRate at 25, the at 50 on the second attempt

Right but your log was direct play. I would like to see it when transcoding. Thanks.

[IainB 3]

 

29 minutes ago, Luke said:

Right but your log was direct play. I would like to see it when transcoding. Thanks.

Attached are logs that show 1080i direct play RealFrameRate at 25, then playback correction attempt to force transcoding

ffmpeg-remux-e2d7049e-bdbd-46fb-b1f3-278cb5b0a77b_1.txt ffmpeg-remux-33bf674f-c46b-4523-bc4f-89816a152712_1.txt LiveTV with transcode log.txt

[Luke 42077]

Hi, do you actually know that it's not 25 fps, or is the real issue just that it doesn't look good?

[IainB 3]

Hi Luke,

Issue is it plays 1080i 50fps content at 1080p 25fps and the motion looks bads