Mpeg stream error: H264, error in replenish buffer

I received the following error when trying to run QSF on a .TIVO file I downloaded from my TiVo.
“Mpeg stream error: H264, error in replenish buffer, details in the log file.”

I’ve attached the VRD log file.

Is this something that can be fixed by VRD or is it some kind of file glitch that can’t be fixed?
 

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Dan203

Senior Developer
Staff member
Try a different muxer, do you get the same issue? Like try saving to MP4 or MKV.
 
Same error message with both MP4 and MKV.

VRD also takes much longer to open this file than other files and when the files finally opens, it's black screen with no images.
 
Nope! Won't play in VLC either!

I was able to record another instance of the show and it processed correctly, so I'm not too worried.

I just wondered if the error was on my end or with VRD and it looks like it was on my end.

Thanks for your time @dan203!
 

Dan203

Senior Developer
Staff member
I've seen this twice now where someone downloaded a file from their TiVo and it was corrupt. Would play in WMP or decrypt with tivolibre. TiVo must have a bug on their side.
 
This particular error has happened at least twice on episodes recorded from the same show. Does sound like a TiVo glitch. I don't record many shows on that channel (TBS), so maybe the issue is (occasionally) with that channel?

I re-record the same episode and don't get the error the 2nd time.

On a related note, I recently moved from Houston to Denver, keeping Comcast as my provider. I've noticed that I have TS download errors much more often with some channels than others.

The worst offenders (in both cities) were AMC, FX, USA. and Syfy. Many other H264 channels don't give me problems at all.

Could the issue be with the feed from the specific networks? Why would one H264 channel cause problems and not another?
 

Dan203

Senior Developer
Staff member
It's possible. FYI I saw a thread on the TiVo forum recently where a couple people suggested that artificially limiting the transfer speed of your recordings from TIVo to PC could reduce or eliminate the errors. You might want to give that a try.
 
Dan,

I continue to get this error on almost any show recorded on TBS, no other channels. Is there anything you can do on your end?
 
I've uploaded a file and sent the email. I can download as a tivo file, but VRD crashes when I try to open the file.

Let me know what else I need to do.

Thanks,
Ed
 

cubdukat

New member
This particular error has happened at least twice on episodes recorded from the same show. Does sound like a TiVo glitch. I don't record many shows on that channel (TBS), so maybe the issue is (occasionally) with that channel?

I re-record the same episode and don't get the error the 2nd time.

On a related note, I recently moved from Houston to Denver, keeping Comcast as my provider. I've noticed that I have TS download errors much more often with some channels than others.

The worst offenders (in both cities) were AMC, FX, USA. and Syfy. Many other H264 channels don't give me problems at all.

Could the issue be with the feed from the specific networks? Why would one H264 channel cause problems and not another?
That's the same issues I have with them as well. I found that it happens more with H.264 channels in the 1000+ range more often. There's either something Comcast themselves are doing with their H.264 streams that's corrupting them, or there's something about the way Tivo is handling them that's causing problems. Either one of them is possible.

Sadly, it will probably never be fixed because that would require one of them to admit they screwed up, and God forbid they should do that. I've managed to mitigate it somewhat by switching my recordings done on NBC and ABC to an old OTA tuner card on my PC, since NBC and ABC still broadcast OTA in MPEG2, and NBC's still in 1080i. If I have to record anything on the Tivo, I stick to channel numbers under 1000 since the problem seems to be greatest with the channels above 1000.

Personally, I think it's a passive-aggressive way of forcing Comcast users to use their stuff instead of Tivo's, and Tivo certainly isn't helping...
 
This thread is closed.

Thanks for your looking into it Dan!

@Dan203 Replied to me via email:

"There is something corrupt in your file. If I decrypt with tivolibre there is no video when I play in VLC. If I attempt to play .tivo in WMP I get audio but no video as well. The TiVo decryption filter also only shows audio, no video, when I manually render your file in GraphEdit. (a DirectShow development tool) So neither tivolibre nor the TiVo decryption filter we use for VideoReDo can decrypt the video stream in your file.

Unfortunately I see other reports of this on the TiVo forum and it appears the bug is on the TiVo side, so there isn't anything we can do to fix it.

Sorry,
Dan"
 

Dan203

Senior Developer
Staff member
Yeah sorry I couldn’t do more, but because of the encryption there is nothing we can do if the file can't be decrypted.
 
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