What is the problem with this video playback and how do I fix it? (pics) - AVS Forum
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post #1 of 11 Old 09-23-2012, 06:07 PM - Thread Starter
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I don't know if there is a term for this type of issue, but here are some screenshots showing the problem I'm having:

TV (with issue)




More screens of issue (Click to show)
L2cBT.jpg
nR7EI.png
Es1GK.jpg

Movie (no issue)



As you can see, there are some weird horizontal artifacts across the entire screen.

Source is 720p mkv video. Screenshots are from both MPC-HC & Daum Potplayer. Playback of movies do not have this issue.

Weird thing is, when I play the files in XBMC, that issue is not present. So I'm not sure what is causing this, but it is very bothersome.

TV - XBMC Playback (no issue)



OS: Windows 7
Hardware: Intel Celeron G540, Radeon HD 6570

Let me know if any additional information is required.
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post #2 of 11 Old 09-23-2012, 08:22 PM
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Did you install any 3rd party codecs?
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post #3 of 11 Old 09-23-2012, 08:26 PM
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Take out the 5450 and run the inbuilt GPU. Result?
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post #4 of 11 Old 09-24-2012, 11:16 AM - Thread Starter
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Quote:
Originally Posted by im bored View Post

Did you install any 3rd party codecs?

I have not. I am using the default settings of both players.

Quote:
Originally Posted by Tiddles88 View Post

Take out the 5450 and run the inbuilt GPU. Result?

I don't see this as being necessary because, based on XBMC playing the files fine and other players not, it doesn't seem like a hardware issue to me (hopefully).
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post #5 of 11 Old 09-24-2012, 02:56 PM
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Have you tried VLC to see if it comes back with the same results.
http://www.videolan.org/vlc/index.html

Are you using HDMI? If so maybe trying a different cable would be worth it?
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post #6 of 11 Old 09-25-2012, 11:32 AM
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I would try a different video decoder.

http://forum.doom9.org/showthread.php?t=156191

 

Follow the instructions for "Installing The Decoders and Splitter" and Video Decoding." You can ignore the rest of the guide.

http://www.avsforum.com/t/1357375/advanced-mpc-hc-setup-guide/0_100



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post #7 of 11 Old 09-25-2012, 04:24 PM - Thread Starter
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Quote:
Originally Posted by im bored View Post

Have you tried VLC to see if it comes back with the same results.
http://www.videolan.org/vlc/index.html
Are you using HDMI? If so maybe trying a different cable would be worth it?

VLC seemed to play it without those artifacts, or whatever they're called, but I don't really want to rely on VLC to be my standalone media player because it doesn't exactly play high bitrate content as smoothly (no frame drops) as XBMC does.

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Originally Posted by Mrkazador View Post

I would try a different video decoder.
http://forum.doom9.org/showthread.php?t=156191

Follow the instructions for "Installing The Decoders and Splitter" and Video Decoding." You can ignore the rest of the guide.
http://www.avsforum.com/t/1357375/advanced-mpc-hc-setup-guide/0_100

Cool, I'll give this a try. Thanks.
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post #8 of 11 Old 09-25-2012, 05:05 PM - Thread Starter
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So I completed that guide, and the playback doesn't seem to have that weird stuff going on, which is a good thing. However, the playback/codec information seems to be way off. Here is a screen showing the codec info:



As you can see, the display is '60.00395Hz' and I think that is supposed to be around 23.97, so not even close. Also, it says '1 frame repeat every 53.47 seconds' and I think that is the drop frame occurrence, which means that is extremely terrible.

Not sure what I missed, but I'm pretty sure I followed everything in the guide. I didn't touch anything with ReClock since when I last tried to install it, I couldn't get any audio.
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post #9 of 11 Old 09-25-2012, 07:56 PM
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The information is correct, your TV should have an info button on the remote to confirm this. You can setup madvr to switch refresh rates.

 

  • Right click the "MAD" icon in your system tray (bottom right) and edit madvr settings.
  • Devices, select your tv or monitor.
  • Display modes, here you can enter 1080p23. This will change the refresh rate of your display to 23.976hz when it detects a movie with a 23.976 frame rate.


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post #10 of 11 Old 09-26-2012, 04:40 PM - Thread Starter
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Hey cool, that worked! Thanks for updating your post because I was kinda lost at first.

So you can see the display now shows 23.97750Hz, which is closer to the composition rate:



Also, yes, my TV now shows 24Hz, neat.

However, the frame repeat timing still seems to be pretty frequent, at least a lot more frequent as compared to some other screens people have posted. Do you know what I need to do to improve that, or does that get pretty technical?


Also, the sound output from MPC-HC seems to be a lot more quiet than what is put out by VLC/Potplayer, is there any specific reason as to why that would be? I left the audio renderer as "System Default", but I did uncheck the source filters in "Internal Filters" like in the guide and added LAV Audio to "External Filters" but did not select "Prefer" - do you think that has anything to do with it? I did this because I couldn't get audio when I first followed the guide, which I think is because I don't have it plugged into a receiver, I just use a 2.1 computer speaker set which is connected through the audio port.

Thanks a lot for your help!
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post #11 of 11 Old 09-26-2012, 06:03 PM
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The info madvr reports for frame repeats is always changing because your video card is not outputting a constant 23.976 refresh rate. It fluctuates up and down some. You should have 0 frame repeats with that refresh rate being so close to 23.976.

 

Are you down mixing the audio to 2ch? When you down mix audio it has to normalize the channels so they don't clip. You would need to boost the audio and use a limiter. I think ac3filter can do this.



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