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[RESOLVED] S_DVBSUB in MKV breaks random access
Posted: Tue Jul 28, 2020 8:49 am
by kebulek
BTW after last fix I have noticed a lot of huge pixelation in AvsPmod video preview. Final encode is fine, but there si something wrong in DGDecNV or last AvsPmod preview.
https://github.com/gispos/AvsPmod/releases
Open avs (my is indexed mkv with only loadplugin and dgsource with deint=0)
Hit F5 for preview and jump somewhere in video
Use arrow keys or mouse wheel to move back or forward
Source:
https://i.paste.pics/c2b08d2744c843e4f9 ... ca0627.png
Preview:
https://i.paste.pics/a11df89ed80e8182ad ... 402ba6.png
temp name
Posted: Tue Jul 28, 2020 9:51 am
by Rocky
Can you demonstrate an issue opening the script in VirtualDub(2)? If so, please provide a link to a stream that shows that. I don't know anything about AvsPmod and I'm not going to debug it.
EDIT: Stream provided via PM and problem replicated. Thank you.
Re: [RESOLVED] Curious MKV not opening
Posted: Tue Jul 28, 2020 8:00 pm
by Curly
It's stupid S_DVBSUB nonsense. gMKVExtractGUI won't touch it and neither should we.
Garbage day tomorrow!
Re: [RESOLVED] Curious MKV not opening
Posted: Tue Jul 28, 2020 8:52 pm
by Rocky
Re: [RESOLVED] Curious MKV not opening
Posted: Tue Jul 28, 2020 9:19 pm
by Bullwinkle
Opening new problems in RESOLVED threads is not Moose Approved behavior.
Re: [RESOLVED] Curious MKV not opening
Posted: Wed Jul 29, 2020 11:31 am
by Boris
Just so you know, this is the guy giving you advice on video technology:
https://youtu.be/Wwr8dhYThI0?t=30
Re: [RESOLVED] Curious MKV not opening
Posted: Thu Jul 30, 2020 8:06 am
by Rocky
Yes,
Curly is great isn't he?
He seems to be correct about the S_DVBSUBs causing the issue. The MKV parser is ancient and new stuff in MKV land can get it flummoxed. Nevertheless, I have developed a fix (ignore all cues not pointing to a video track). Just need to do some regression testing.
I'll break this new issue into its own thread.
Re: [RESOLVED] Curious MKV not opening
Posted: Thu Jul 30, 2020 8:34 am
by Guest 2
Laughing loud here :belly-laugh:
Re: [RESOLVED] Curious MKV not opening
Posted: Thu Jul 30, 2020 8:48 am
by Rocky
You have good taste, Guest 2! Maybe we should have a new rank: Curly Approved.
Re: S_DVBSUB in MKV breaks random access
Posted: Thu Jul 30, 2020 10:07 am
by kebulek
BTW I wonder, is it really just video preview thing? Because I did few encodes with 212 version and I don't have time to watch & check them right now to be 100% sure.
Re: S_DVBSUB in MKV breaks random access
Posted: Thu Jul 30, 2020 11:03 am
by Rocky
It's about doing random access in an MKV that contains cues pointing to non-video tracks, in this case pointing to an S_DVBSUB track. Those tracks are also not currently supported for demuxing.
As long as your scripts didn't use random access, e.g., they were processed linearly from the beginning, the transcodes will be fine. This is typically the case for a simple transcode.
Re: S_DVBSUB in MKV breaks random access
Posted: Thu Jul 30, 2020 1:01 pm
by kebulek
Thanks!
Re: S_DVBSUB in MKV breaks random access
Posted: Thu Jul 30, 2020 3:13 pm
by Rocky
You are welcome. Fixed in slipstream 214.
