Selur's Little Message Board

I would need a detailed step-by-step what you do to properly reproduce this.

Cu Selur

This happened with another DVD also:
Steps to reproduce:
1.DVD input
2.Select VIDEO_TS folder
3.Audio: "auto add (first) " (in my case AC3)
4.Audio tab: check box "Audio Encoding Option", select PCM
5.Select QTMC de-interlacer
6.Select output: avi/FFvHuff
Run.

Console shows warning:
"Couldn't adjust 2nd pass bitrate..
WARNING from client local, for job 2020-12-11@00_56_50_4810_02_recalc:
-> 2020-12-11@00_56_50_4810_02_recalc produced a warning: Couldn't adjust 2nd pass bitrate..



Output video duration 42 min 4s (original duration 46min 44s) with audio AC3 instead of PCM.
See attached debug.

Things getting even worse now:
If I select "Audio: passthrough all" it still embeds AC3 in to output and doesn't demux and output audios in to separate streams like it did in previous versions

Quote:Steps to reproduce:
1.DVD input
2.Select VIDEO_TS folder
3.Audio: "auto add (first) " (in my case AC3)
4.Audio tab: check box "Audio Encoding Option", select PCM
5.Select QTMC de-interlacer
6.Select output: avi/FFvHuff
Run.

Not so good,...
from the tool-top of the 'Processing->Audio'-ComboBox:

Quote:...
- auto add (first): enables the Audio-tab, but automatically adds the first input audio stream from the input file to the audi job queue with the settings defined in the Audio-tab.
side notes:
- You can still add additional audio streams in the Audio-tab, unless you use multiple input files.
- This setting will not adjust to changes after loading the source! So configure the Audio-tab before loading your source.
...

So the order of your steps is wrong to archive what you want.

About the length of the audio streams: This might happen since Avisynth/Vapoursynth can't properly process DVDs and thus stumble over DVD titles with an intro at the end/beginning that they skip or not skip, but mplayer does.
-> will look into that later

Real problem is that there is a '01_44_20_3610_02_recalc' job and there shouldn't be one since Huffyuv doesn't use 2pass or bitrate based encoding.
-> will look at it after work
Problem is this is triggered through one specifc order of steps, which I could reproduce once, but not again so far.
Please reset your defaults and try to reproduce this again with a debug output enabled. Problem is that I can't find the exact steps to reproduce this.

Cu Selur

(14.12.2020, 05:25)Selur Wrote: [ -> ]

Quote:Steps to reproduce:
1.DVD input
2.Select VIDEO_TS folder
3.Audio: "auto add (first) " (in my case AC3)
4.Audio tab: check box "Audio Encoding Option", select PCM
5.Select QTMC de-interlacer
6.Select output: avi/FFvHuff
Run.

Not so good,...
from the tool-top of the 'Processing->Audio'-ComboBox:

Quote:...
- auto add (first):  enables the Audio-tab, but automatically adds the first input audio stream from the input file to the audi job queue with the settings defined in the Audio-tab.
side notes:
- You can still add additional audio streams in the Audio-tab, unless you use multiple input files.
- This setting will not adjust to changes after loading the source! So configure the Audio-tab before loading your source.
...

So the order of your steps is wrong to archive what you want.

About the length of the audio streams: This might happen since Avisynth/Vapoursynth can't properly process DVDs and thus stumble over DVD titles with an intro at the end/beginning that they skip or not skip, but mplayer does.
-> will look into that later

Real problem is that there is a '01_44_20_3610_02_recalc' job and there shouldn't be one since Huffyuv doesn't use 2pass or bitrate based encoding.
-> will look at it after work
Problem is this is triggered through one specifc order of steps, which I could reproduce once, but not again so far.
Please reset your defaults and try to reproduce this again with a debug output enabled. Problem is that I can't find the exact steps to reproduce this.

Cu Selur

That's another issue: "So the order of your steps is wrong to archive what you want." - How average user can figure out what steps "wrong", and what's are "right" in order to archive what you want ?
What's wrong with the "debug"  I've attached?
Don't you have DVD drive/DVD in order do testing by yourself?
If so, just let me know and I'll upload some VIDEO_TS folder for your testing.

I got a few DVD folders for testing on my hdd, problem is using the description you used I can not reproduce the issue.
For me no _recalc job is created when FFvHuFF is used. Since I can't reproduce it here I suspect that it's something in your settings, so resetting Hybrid might help.

Quote: How average user can figure out what steps "wrong", and what's are "right" in order to archive what you want ?
What's wrong with the "debug" I've attached?

by reading the tool-tips,..

Cu Selur

I managed to reproduce the problem.

Once I really understand what causes the issue an why it happens I'll send you a new dev link for testing.

Cu Selur

Clean install dev_2020.12.13-15451
3rd DVD
Case 1. No filters, audio:ignore. Result de-interlaced video stream with proper duration 15 min 15sec (I tried QTMC - gives also proper duration)
Case 2. No filters, audio: passthrough all. Result: de-interlaced video stream with wrong duration 13 min 43 sec, console warning "... Couldn't adjust 2nd pass bitrate.....", audio tracks don't get demuxed, AVI consists unwanted AC3.

Think I fixed the

Quote:console warning "... Couldn't adjust 2nd pass bitrate....."

problem, but that isn't the real issue.

Quote:Case 1. No filters, audio:ignore. Result de-interlaced video stream with proper duration 15 min 15sec (I tried QTMC - gives also proper duration)
Case 2. No filters, audio: passthrough all. Result: de-interlaced video stream with wrong duration 13 min 43 sec, console warning "... Couldn't adjust 2nd pass bitrate.....", audio tracks don't get demuxed, AVI consists unwanted AC3.

Case 1:
Video is decoded by Vapoursynth/Avisynth
Case 2:
Video is decoded by Vapoursynth/Avisynth
Audio is extracted using mencoder/mplayer (if, like you wrote the audio didn't get demuxed/extracted then it couldn't end up in the avi )
(Audio doesn't get converted since your audio queue doesn't include the info for Hybrid to do so)

-> This seems to be a problem of mencoder/mplayer and Vapoursynth/Avisynth decoding the files differently
(mencoder/mplayer properly parses the DVD, Vapoursynth and Avisynth don't)
My guess is that the files include an intro or outro which mencoder/mplayer skips, since the dvd structure tells it to, but Vapoursynth/Avisynth doesn't.
Only workaround reliable for this is to process the DVD beforehand with PGCDemux or MakeMKV.

I wrote a workaround for this a while ago which often works if you (assuming yout don't use the chapter selection to restrict what should be processed of the DVD). By enabling 'Audio->Misc->Extract audio using DGIndex' before loading the source, Hybrid will use DGIndex to extract the audio, which should help. Totally forgot about that option; since it only works on Windows and I rarely process DVDs.

=> working on fixing the old workaround

Cu Selur

Send you a link to a dev version where:
a. recalc issue should be fixed
b. the workaround might work (still depends on the DVD); only real workaround for Avisynth&Vapoursynths lacking DVD parsing support is using tools like PgcDemux or MakeMKV.

Cu Selur

Tried to write a similar workaround using d2vwitch instead of DGIndex, but sadly d2vwitch has problems with the audio extraction of a bunch of DVDs I have here. (reported that to the author so may be there will come an option which will also use d2vwitch)

But all in all I would recommend to not use Avisynth/Vapoursynth with DVD input directly.

Cu Selur