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Issues with certain channels dropping frames (poor quality)


ryanfinger

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ryanfinger

Background of my setup...

Intel i7 with discrete Nvidia GPU

Running Emby for Windows and Emby Theater on the same PC.

HDHomeRun for Live TV

 

Issue - some channels are experiencing quality issues which appear to be related to a large drop in frames (see below).  I've been trying to pinpoint the issue ever since I switched from WMC to Emby over a month ago.  I made a breakthrough troubleshooting today.  See below.

 

For 20 mins today NBC and the Golf Channel were both airing the same feed.  The Golf Channel feed was very jerky and difficult to watch.  Switching over to the NBC channel everything was very smooth and flawless to watch.  Not having a ton of time before the coverage would change I grab snapshots from MPV with all the info. 

 

Here are the differences in each stream.  I also attached the screen shots I grabbed.

 

NBC - Great Quality and Smooth

Video Info

Codec - MPEG-2

Bit Rate - 13.5 Mbps

Dropped Frames - 1

Resolution 1920 x 1080

Original Media Info

Container: mpegts

Bitrate: 20.4

Codec: MPEG2VideoMain

VideoFramerate: 29.97 fps

 

Golf Channel - Poor jerky quality

Video Info

Codec - h264 MPEG-4

Bit Rate - 3.0Mbps

Dropped Frames - 4387

Resolution 1280 x 720

Original Media Info

Container: mpegts

Bitrate: 8.4 Mbps

Codec: H264 High

VideoFramerate: 59.94 fps

 

Any thoughts on what I might need to tweak?

 

Thanks.

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ryanfinger

Additional troubleshooting...

 

Well, I think this issue might need to be moved over to the Emby Theater thread. I tested using the Emby for Android TV app and the issues went away.

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  • 2 weeks later...
ryanfinger

So, I want to put a disclaimer on this response.  I'm no MPV expert and much of my config file I have ripped for various blogs and reddit pages.  I've tested it out myself and continue to experiment with the different settings.  I'm pretty happy with my experience.

 

That said I have uploaded my current config file to this post.

 

The two settings in question I had to comment out were the following...

 

#interpolation=no

#vd-lavc-o=deint=adaptive

 

Hope that helps you troubleshoot.

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