Audio Missing after Running QSF

I recently upgraded from 823a to 824a and noticed the audio stream is missing from all video files I've processed with QSF.

I download from TiVo with kmttg and then process with QSF.

I've rolled back to 823a and all is fine.

Anyone else seeing this problem?
 

jgrassi

Member
For another data point, I just did QSF on both a TS and an MP4 file and both "fixed" files work perfectly. Audio is present in both created/fixed files. Perhaps you should re-install? Don't know what to tell you but my QSF in 825 works perfect. Didn't try in 824 though...
 

Danr

Administrator
Staff member
First try 825a. If you still have the problem, send us the log file of the editing session.
 

Dan203

Senior Developer
Staff member
According to the log the audio frames were output. Try saving to a different format, like MIV, just to see if it's the TS that is causing the proble.
 

Dan203

Senior Developer
Staff member
Does that file play in Windows Media Player? There could be an issue with the TiVo download or the TiVo decryption filter. What program are you using to download it from the TiVo?
 
I'm using kmttg to download and process.

The file plays in VLC and my main media player JRiver Media Center, just with no audio.

Mediainfo does not detect an audio stream.

The same video file processes correctly with audio if I reinstall 823a over 825a. The only difference with my system is the version of VRD.

I have uploaded the video file processed with 825a and sent the email.
 

Dan203

Senior Developer
Staff member
Do you have pyTivo Desktop? If so try downloading it again with the decrypt option enabled so you get a raw .ts file instead of a .tivo file. If that file plays in VLC then you'll know the audio is OK and the TiVo decryption filter is the issue. If it doesn't then you'll know there is some sort of encryption/corruption issue coming from the TiVo itself.
 

Danr

Administrator
Staff member
You're right there are no audio frames in the output file. Can you try this. Open the source file and save it normally instead of using QSF.

Thanks.
 
I'm not sure what you want me to do?

I've downloaded with kmttg and pytivo desktop and I get the same result ... a file with no audio. Both processes use QSF to decrypt and process the file.

Both processes work fine with 823a.

Both processes produce no audio with 825a.
 

Dan203

Senior Developer
Staff member
I'm not sure what you want me to do?

I've downloaded with kmttg and pytivo desktop and I get the same result ... a file with no audio. Both processes use QSF to decrypt and process the file.

Both processes work fine with 823a.

Both processes produce no audio with 825a.
I would like you to go into pyTivo Desktop, open settings, and check "Decrypt with tivo-libre". If you have VideoReDo post-processing enabled then turn it off. Now download the file again. That will result in a regular .ts file, instead of a .tivo file. Try playing that file in VLC. Does it have audio? If it does then try QSFing that file with VideoReDo. Does that file have audio?

What this does is eliminates the TiVo Directshow filter from the equation so we'll know if that's causing the problem or not.
 
I would like you to go into pyTivo Desktop, open settings, and check "Decrypt with tivo-libre". If you have VideoReDo post-processing enabled then turn it off. Now download the file again. That will result in a regular .ts file, instead of a .tivo file. Try playing that file in VLC. Does it have audio? If it does then try QSFing that file with VideoReDo. Does that file have audio?

What this does is eliminates the TiVo Directshow filter from the equation so we'll know if that's causing the problem or not.
Followed your guidance and the video has audio. Mediainfo also shows an audio stream.
 

Danr

Administrator
Staff member
Don't use QSF. Open the .tivo file in VRD and click on save. Does the resulting file have audio?
 

Danr

Administrator
Staff member
We found the problem, sent you a link to a build for testing. For anyone else monitoring this thread, there is a QSF problem when the frame rate is 59.94 fps.
 

Fentropic

Member
We found the problem, sent you a link to a build for testing. For anyone else monitoring this thread, there is a QSF problem when the frame rate is 59.94 fps.
Thanks for the heads-up.
Does this affect all video codecs using 59.94 frame rate or only certain ones (mpeg2, H.264, etc.). All containers (mpeg2 Program Stream, mpeg2 Transport Stream, H.264 Transport Stream, TiVo version of each, etc.)
I very rarely download from my TiVo's anymore, but do use QSF once in awhile, so am curious.
 
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