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Old 21st December 2020, 18:41   #1081  |  Link
StainlessS
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@Shekh,
May want to look at this:- https://forum.doom9.org/showthread.p...86#post1931586

Quote:
Quote:
Originally Posted by gispos View Post
And I discovered a bug in VDub2
If 'Direct stream copy' is selected it pops when you try to start the analysis pass
Define "pops", is that audio ?

EDIT: OK, I see that 'pops' means Access Violation and Crash.
EDIT: Also occurs in VD2 if direct load of clip into VD2, Direct Stream Copy, Video Analysis Pass, Access violation.
EDIT: Also occurs if VD2 fed RGB32 from Avisynth and Direct Stream Copy, Analysis Pass.
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Old 21st December 2020, 20:26   #1082  |  Link
shekh
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Quote:
Originally Posted by StainlessS View Post
@Shekh,
May want to look at this:- https://forum.doom9.org/showthread.p...86#post1931586



EDIT: Also occurs in VD2 if direct load of clip into VD2, Direct Stream Copy, Video Analysis Pass, Access violation.
EDIT: Also occurs if VD2 fed RGB32 from Avisynth and Direct Stream Copy, Analysis Pass.
thanks
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Old 30th January 2021, 03:25   #1083  |  Link
lansing
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I have a shortcut key to switch input/output frame panel so I can see the difference quickly, but for every 2-8 toggles, there's a quick flash on the frames
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Old 3rd April 2021, 22:24   #1084  |  Link
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Hello,

Do you know if there is any project to insert a dialog box (extra-command line) in the "ffmpeg / x265" configuration panel in VDB2, like it's the case for the x264 compression panel? The h265 presets are not perfect, and it could be nice to manually adjust the settings.
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Old 7th April 2021, 20:20   #1085  |  Link
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I tried to find anywhere this had been requested before, but couldn't find anything. Apologies is this is a duplicate feature request

I was wondering if it would be possible to add a quick auto-crop button on the crop dialogue that trims the black based on your current frame. Trying to guess all four sides is kind of time consuming if you do it a lot, and eyeballing it is iffy unless you zoom in on each side. Some kind of auto crop would speed it up quite a bit I think.

Thanks!

Last edited by albino; 7th April 2021 at 20:37.
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Old 26th April 2021, 01:05   #1086  |  Link
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Can anyone here tell more about the FFMPEG codecs in Virtualdub2?
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Old 26th April 2021, 07:37   #1087  |  Link
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What exactly do you want to know? ... It contains a selection of container splitters and audio/video content decoders so that you will be able to import a variety of formats (unfortunately it is a bit outdated, so no AV1 yet); unfortunately I do not know if a comprehensive list is documented. And a few specific encoders (e.g. FFV1, VP9, x265 for video; Opus, Vorbis, Lame MP3, AAC for audio) are exposed with own dialogs via the "Compression" lists, and a few multiplexers are exposed as file formats in the "Save as..." dialog.
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Old 28th April 2021, 10:28   #1088  |  Link
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Quote:
Originally Posted by LigH View Post
What exactly do you want to know? ... It contains a selection of container splitters and audio/video content decoders so that you will be able to import a variety of formats (unfortunately it is a bit outdated, so no AV1 yet); unfortunately I do not know if a comprehensive list is documented. And a few specific encoders (e.g. FFV1, VP9, x265 for video; Opus, Vorbis, Lame MP3, AAC for audio) are exposed with own dialogs via the "Compression" lists, and a few multiplexers are exposed as file formats in the "Save as..." dialog.
I want to know if those encoders can serve as good substitutes for some of the codecs I do have. I heard many things about FFMPEG so I thought those codecs might be as good or better than the regular ones. I wanted to know some of the features of the FFMPEG codecs so that I may use for future encodings if possible.
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Old 28th April 2021, 13:31   #1089  |  Link
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VirtualDub2 does not expose many encoders. They will be the same as separate encoders or those included in any other ffmpeg (command line or core of a converter) of that time when it was built. But VirtualDub2 may not offer all the options of all the encoders via dialogs and controls. An alternative way to use other encoders more flexibly may be the "External encoder" setup.

Regarding the codecs in ffmpeg, it is hard to say something general without taking a detailed look at specific codecs: e.g. x264, x265, vp9, Opus, Vorbis, Lame are all exactly what they are, the best of OpenSource codecs in their formats; ffmpeg's AAC encoder is quite good, but Fraunhofer FDK or Apple iTunes (CoreAudio) AAC encoders are better in quality, it's just not possible to include them in ffmpeg (either closed source or with restrictive license).
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Old 1st May 2021, 10:27   #1090  |  Link
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Can you give a detailed guide on the codecs in Virtualdub2? I am more familiar with XVID and Lagarith but not with the others.
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Old 3rd May 2021, 07:22   #1091  |  Link
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That's not really a matter of this topic, I believe ... VirtualDub2 just provides basic access to them. But what they are, what they do, how they work, how you can configure them ... that's documented elsewhere. Primarily in their own documentation, some of that in general Media and Codec Wikis (even the Wikipedia, regarding their underlying standards), or in the documentation of ffmpeg. Writing a new guide just for you would be a full-time job (and I already have a different one).
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Old 4th May 2021, 17:53   #1092  |  Link
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I see. Thanks for the help anyway. I was just looking into alternative methods of encoding and good encoders.
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Old Yesterday, 04:24   #1093  |  Link
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Quote:
Originally Posted by shekh View Post
https://gist.github.com/shekh/c28db6...4e14fbe6c1369b

first you need to modify command line to point to actual ffmpeg.exe
then Options->External encoders->Import...

now you can use File->Export->Using external encoder...
Thank you!
How to export to the EXR format exactly exr zip1 and exr zip16?
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Old Yesterday, 05:43   #1094  |  Link
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Quote:
Originally Posted by doctorkhv View Post
Thank you!
How to export to the EXR format exactly exr zip1 and exr zip16?
I just posted this in your other thread -

You can write EXR sequence with ffmpeg, using your avs input

Instead of sending float through the ffmpeg avisynth demuxer (float not supported), send 8 or 10bit in the avs script and use ffmpeg to do the float conversion and linearization with zscale

https://forum.doom9.org/showthread.p...03#post1942303
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Old Yesterday, 08:41   #1095  |  Link
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Quote:
Originally Posted by poisondeathray View Post
You can write EXR sequence with ffmpeg, using your avs input
How to insert .vdscript(s) in avs?
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Old Yesterday, 11:42   #1096  |  Link
LigH
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They control VirtualDub, not AviSynth. Different purpose.
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Old Yesterday, 20:55   #1097  |  Link
StainlessS
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VDub/VDub2 has some kind of Frame Server mode [I aint used it since bout 2002, dont remember how it works]
VDub2\AviProxy\readme.txt
Code:
The AVIFile handler included with VirtualDub is capable
of running in Proxy mode -- that is, you can install it as the
*default* handler for AVI files, and it will work with signposts
that are renamed to the AVI extension.  This means that
applications which previously failed with the AVIFile handler
because of the .VDR extension can now be used, provided that
the .VDR files are renamed to the .AVI extension.

This support is very experimental, so try at your own risk.

To try the AVIFile proxy support, first use auxsetup.exe to
install AVIFile frameserver support, then use the REGEDIT tool
to install the proxyon.reg file.  Use the proxyoff.reg file
to disable it.

The proxy support will be invisible to most programs, but some
programs do not like the proxy handler and will no longer work
if it is installed; you will have to disable the proxy for
these programs.  These applications were tested:

Ligos LSX-MPEG Encoder 3.0:	works
Panasonic MPEG Encoder 2.30:	works most of the time
XingMPEG Encoder 2.20:		fails (must deinstall proxy)



Issues with Windows Vista and newer versions of Windows
=======================================================
Starting with Windows Vista, the registry keys that associate
the .AVI extension to the built-in handler in Windows are
protected by Windows Resource Protection and are not normally
replaceable. As such, the proxy mechanism is not recommended
and not supported under Vista and newer versions of Windows.

If you really need to try it, editing the access control list
(ACL) for the registry entries in the Registry Editor to allow
Administrators full control over the keys and not just
TrustedInstaller has been reported to work.
also in same directory,
Code:
Proxyon.reg
Proxyoff.reg
In my VDub2\extra\
folder I got an auxsetup.exe

Dont recall what that is but I think is related in some way.
[also a vdremote.dll]

There is also in VD2 dir VirtualDub.chm, with a FrameServer section.

It is possible that above files are heldover from previous version of VD and I just copied into VD2 directories.

Anyways, I aint read or experimented in any way with above, but maybe they might point in right direction,
or maybe somebody remembers how that stuff works.

EDIT: concerning frameserving from Vdub2 into Avisynth.
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"Some infinities are bigger than other infinities", but how many of them are infinitely bigger ???

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Old Yesterday, 21:14   #1098  |  Link
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Unlike the 'libx264 core 157' video encoder (built into VirtualDub 2), the FFmpeg (Lavc57.104.100) x265 video encoder does not offer a method of entering 'Sample Aspect Ratio' values.

Are there any FFmpeg x265 video builds that do?
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Old Today, 07:09   #1099  |  Link
LigH
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Neither as ffmpeg parameter nor in x265-params?
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Old Today, 08:27   #1100  |  Link
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I installed x265vfw v3.40 which like libx264 core 157 video encoder does offer a method of entering 'Sample Aspect Ratio' values. But sadly the entered values don't appear to make it into the video stream



By contrast, the x265 video encoder in MeGUI is able to produce encodes with aspect ratio signalling within the video stream. But I don't know when/where this SAR information is added
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