VirtualDub2

[SeeMoreDigital]

Originally Posted by LigH

VirtualDub2 r44282 (release): OK

I can confirm this release does indeed fix Leo 69's issue

Edit: Having a 'variable frame rate' doesn't help. But re-muxing the hevc elementary stream to have a constant frame didn't help either.

[LigH]

Originally Posted by v0lt

I found a similar issue: https://github.com/mpv-player/mpv/issues/3440

There I read that there are reasons (e.g. VFR, but also High Bit Depths) which may cause wrong seeking. Issue got closed only because "wrong muxing" was blamed. But if an older version works without issues, there seems to be a more compatible fallback technique to determine a valid reference frame?

[Leo 69]

I just wanted to add that variable frame rate doesn't really play a role, I have plenty of videos with CFR which VirtualDub has same issues with (but not with all videos).

[v0lt]

I found this ticket - https://trac.ffmpeg.org/ticket/9805.
There is a problem with ffplay, but ffplay works fine for me.
There are links in the ticket, but they do not explain how to solve the problem in applications using ffmpeg.

[qyot27]

Originally Posted by LigH

There I read that there are reasons (e.g. VFR, but also High Bit Depths) which may cause wrong seeking. Issue got closed only because "wrong muxing" was blamed. But if an older version works without issues, there seems to be a more compatible fallback technique to determine a valid reference frame?

If it's the sort of 'wrong muxing' I'm thinking of (or at least in the same ballpark), then remuxing yourself using MKVToolNix and then checking if the new file is broken would confirm that.

[LigH]

Original sample.mkv was (according to metadata) multiplexed with mkvmerge v90.0.

Remultiplexed with mkvmerge v91.0: same result (works in r44282, fails with any newer avlib).

Remultiplexed with Box4 v3 to MP4: same result (works in r44282, fails with any newer avlib).

[v0lt]

Test build VirtualDub2 v2.3.0.838.
I tried to fix the problem with some HEVC streams.
Hopefully nothing else was broken.

[jay123210599]

Say I want to zoom in on this specific part of the video (meaning only show that specific selection). How do I do that?

https://imgur.com/Sucpw45

[poisondeathray]

Originally Posted by jay123210599

Say I want to zoom in on this specific part of the video (meaning only show that specific selection). How do I do that?

https://imgur.com/Sucpw45

If you mean the frame selection in the screenshot , edit=>crop to selection

If you mean spatially, to some elements of the picture such as eyes etc.., apply the crop filter and resize filter

[SeeMoreDigital]

Out of interest...

If I wanted to use the 'x264 8-bit codec' to encode a Blu-ray disc compatible video stream, what additional command lines would I need to put in the 'Extra command line' box?

Cheers

[nji]

Originally Posted by jay123210599

Say I want to zoom in on this specific part of the video (meaning only show that specific selection). How do I do that?

https://imgur.com/Sucpw45

Try this

[LigH]

@SeeMoreDigital

Possibly among others, most probably: --bluray-compat (I guess).

Calling Selur with more experience for support...

[Selur]

See https://forum.doom9.org/showthread.php?t=154533 under '2.1 Mandatory parameters', the mandatory options are really needed and to be compatible with most authoring software, make sure to use "--slices 4" when using level 4.1, also I would add every option under '2.2 Optional parameters' if possible.

Cu Selur

[LigH]

And I guess exporting raw AVC video from the x264 codec, without a container, is an own issue to be thought through thoroughly.

[SeeMoreDigital]

Hello again,

So far I've added --bluray-compat --slices 4 into the command line area but at the end of the encoding process I received the following 'warning' message: -



What do I need to do to resolve this?

[LigH]

Add also VBV parameters related to the Profile@Level, resolution, and frame rate of the material, based on the Blu-ray compatibility table.

[SeeMoreDigital]

Originally Posted by LigH

Add also VBV parameters related to the Profile@Level, resolution, and frame rate of the material, based on the Blu-ray compatibility table.

I'm encoding (what is essentially) a still image into an 1920x1080 AVC video stream at 1000kbps ARB at 24.000fps. Would the following work:

--vbv-bufsize 1000 --vbv-maxrate 3000 is allowed

[v0lt]

VirtualDub2 v2.3.0.845

Changes:
VirtualDub2 is now a Unicode application.
Improved support for file paths with Unicode characters.
Removed obsolete "Disk I/O write mode" setting.
The "/queryVersion" parameter has been deprecated.
Updated zlib 1.3.1.

Updated avlib-1.vdplugin to version 0.7.1.264.
- FFmpeg 7.1.1 is now supported.
- Fixed crash on problematic AAC audio.
- Fixed missing sound for some MP4 files with AAC audio.
- Fixed a crash when playing video files with changing video frame size.
- Ignore m3u playlist files.
- Fixed frame retrieval for some HEVC streams.
- Added video encoder SVT-AV1.
- Minor optimizations.

Updated scripted.vdplugin to version 0.2.2.100.
- Scintilla 5.5.6 updated.
- Lexilla 5.4.4 updated.

Also available is old VirtualDub2 44282 with updated avlib.vdplugin.

[rgr]

Since changing the program version, folder, etc. VirtualDub doesn't want to show up in the "Open With" list (I mean the context menu, not the window with "more" applications).
I used to have VirtualDub there, then I changed the folder, new version etc. and since then it doesn't want to show up in this menu, even when I make it the default application for e.g. avs.

The only thing I've googled is that others also have this problem with VirtualDub.
How do I fix this?

[v0lt]

Originally Posted by rgr

Since changing the program version, folder, etc. VirtualDub doesn't want to show up in the "Open With" list (I mean the context menu, not the window with "more" applications).
I used to have VirtualDub there, then I changed the folder, new version etc. and since then it doesn't want to show up in this menu, even when I make it the default application for e.g. avs

What you write is not a VirtualDub problem. It is an old Windows bug.
https://superuser.com/questions/9165...s-my-selection