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Live TV Interlaced


theniteow1

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theniteow1

Hello,

 

I have the latest version of Emby (not beta), the and the latest version of the Fire TV app.  I noticed when I use Live TV Streaming, some channels come in interlaced (you can see lines running through things, especially when there is fast movement), while others play perfectly normal.  If I enable "Direct Play" (no time-shifting)  then the issue goes away.  I would assume it has something to do with ffmpeg not detecting if the channel is interlaced or not.  Has anybody experienced this issue?  Emby team are you aware of this problem?

 

Thanks!

 

P.S. I noticed it on certain channels like Hallmark.

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theniteow1

Hi, @@Luke here are the logs.  Sorry, it took so long to get back to you, just now got time to collect them.  If you note channels 534, and 565 seems to be the one's that show the interlacing issue.  While channel 592 comes in just fine.  Hope this helps.  Thanks!

emby-logs.zip

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Ok thanks. It has properly detected that it is interlaced but I don't think it is being deinterlaced. We'll look at that.

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  • 3 months later...
theniteow1

Hi @@Luke, I just wanted to come back to this, and let you know the interlacing issue has not been fixed with the latest versions.  The issue is still persistent.

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  • 2 weeks later...
theniteow1

I sure will, I'll get some tonight.

 

@@Luke Here are some logs, sorry took so long to get back to you.  Just been running short on time.  In this set of logs you'll notice channel 509 is interlaced, but it's not de-interlacing it.  I also noticed certain channels like 534 - Hallmark always come in this way.  It never deinterlaces them.

logs.zip

Edited by theniteow1
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@@Luke Here are some logs, sorry took so long to get back to you.  Just been running short on time.  In this set of logs you'll notice channel 509 is interlaced, but it's not de-interlacing it.  I also noticed certain channels like 534 - Hallmark always come in this way.  It never deinterlaces them.

 

Hi.  No logs...

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theniteow1

@@Luke @@ebr I see you've added some settings for de-interlacing under Transcoding in the latest stable release.  Do these settings also affect Live TV streaming, or is that incorrect?

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mwongjay

@@Luke @@ebr I see you've added some settings for de-interlacing under Transcoding in the latest stable release.  Do these settings also affect Live TV streaming, or is that incorrect?

 

 

I do not believe these new settings have any effect on your issue as this refers to the quality of the deinterlaced stream. There are multiple threads dating back many months that discuss interlaced streams not being deinterlaced despite being detected as interlaced during the probe. 

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I do not believe these new settings have any effect on your issue as this refers to the quality of the deinterlaced stream. There are multiple threads dating back many months that discuss interlaced streams not being deinterlaced despite being detected as interlaced during the probe. 

 

Yes, in Android TV & Fire TV, and that should be resolved for the next release of the server, along with the next release of those apps.

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mwongjay

Yes, in Android TV & Fire TV, and that should be resolved for the next release of the server, along with the next release of those apps.

 

 

Is this in beta?

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theniteow1

Yes, in Android TV & Fire TV, and that should be resolved for the next release of the server, along with the next release of those apps.

 

@@Luke That sounds great!  Thank you for the update.

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mwongjay

Yes.

 

Hm.. What version? I believe I was on .51 2 nights ago and despite the log identifying the video stream as interlaced deinterlacing was not happening.

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Hm.. What version? I believe I was on .51 2 nights ago and despite the log identifying the video stream as interlaced deinterlacing was not happening.

 

.53 - which didn't exist two nights ago :).

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mwongjay

You're not on the latest server build.

 

Ok. Updated and can confirm it's working. Can clearly see the different between the HDHR app which isn't deinterlacing and Emby that is. Great job guys!

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arrbee99

Sorry to interject, but what is the relationship between transcoding and deinterlacing ? I get thereby different, but if transcoding uses ffmpeg (I think), what does deinterlacing use (something completely different, some kind of subset of ffmpeg) ?

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mwongjay

Sorry to interject, but what is the relationship between transcoding and deinterlacing ? I get thereby different, but if transcoding uses ffmpeg (I think), what does deinterlacing use (something completely different, some kind of subset of ffmpeg) ?

 

My attempt at making it easy to understand: Think about washing your clothes. You put dirty clothes (interlaced video) through the washing machine (transcoder), add detergent and fabric softener (ffmpeg flags) and at the end of the cycle you have clean clothes (progressive video). You can google interlaced video vs progressive to see the difference. Emby uses ffmpeg to transcode incompatible formats to formats that your client device (Roku, Amazon FireTv, etc) can play. In the case of interlaced video, Emby transcodes the video using ffmpeg with a flag that instructs ffmpeg how to process the video with the result being deinterlaced video. 

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