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Old 02-27-10, 01:05 AM   #13
MarkG
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Default Re: Myth recording video breaks up with VDPAU

I can confirm that 195.36.08 fixes this problem on every corrupted stream I have tried.

Thanks!

Mark
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Old 02-27-10, 09:43 AM   #14
MarkG
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Default Re: Myth recording video breaks up with VDPAU

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Originally Posted by MarkG View Post
I can confirm that 195.36.08 fixes this problem on every corrupted stream I have tried.

Thanks!

Mark
I'd like to ask, since the corrupted file must have been analyzed, if you could feed back to me what the problem with the mpeg stream was. If it is due to reception, I will work on improving my antenna system. If it is due to a bug in the encoder, I would like to feed that information back to the tv stations that broadcast the corrupted streams.

Thanks,

Mark
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Old 03-01-10, 10:42 AM   #15
Stephen Warren
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Default Re: Myth recording video breaks up with VDPAU

One of the syntax elements in the stream contained an illegal value. I don't believe there's a way to tell if this was because of corruption or decoder bug. I'd suspect corruption though, since the bad values are isolated cases.
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Old 03-01-10, 02:35 PM   #16
MarkG
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Default Re: Myth recording video breaks up with VDPAU

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One of the syntax elements in the stream contained an illegal value. I don't believe there's a way to tell if this was because of corruption or decoder bug. I'd suspect corruption though, since the bad values are isolated cases.
Can you tell how many bytes the error was? FEC is supposed to correct errors up to 10 bytes and interleaving may improve on that. When the signal level is actually low, I see much larger burst errors, with much worse image breakup, and audio is also affected.

Mark
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Old 03-26-12, 02:28 AM   #17
MarkG
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Default Re: Myth recording video breaks up with VDPAU

I've resurrected this old thread because I replaced my 9600GT with a GT430 and
the problem seems to have returned, although not as often. I am using the latest
driver, 295.33 on updated Fedora 16 64 bit with Mythtv 24.2 from ATRpms.
Occasionally, usually at a scene change, the video breaks up and looks blocky.

Also, it seems that enabling either vdpauivtc or high quality scaling causes
jumpy video, and the audio over HDMI occasionally drops out for a split
second. None of these were issues with the 9600GT although I did not
use audio over HDMI as it does not have HDMI.

Mark
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Old 03-28-12, 01:40 AM   #18
MarkG
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Default Re: Myth recording video breaks up with VDPAU

I swapped the 9600GT back in and it works correctly again.

Mark
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