I'm trying to open .WebM in VirtualDub

[alinhoalisson]

Hello guys, I'm trying to open .webm files in VirtualDub, so I can convert them to AVI manually.
I've already downloaded DirectShow codecs for WebM from Google's website, but it doesn't work.

It only shows the window, and then, VirtualDub freezes. There's a screenshot in the attachment.
What should I do?

[El Heggunte]

Matroska plugin by fccHandler:

http://fcchandler.home.comcast.net/~fcchandler/Plugins/Matroska/index.html

Besides, make sure ffdshow's VfW interface is set to decode VP8

However, there is NO functional/acceptable ACM decoder for Vorbis.

[alinhoalisson]

Matroska plugin by fccHandler:

http://fcchandler.home.comcast.net/~fcchandler/Plugins/Matroska/index.html

Besides, make sure ffdshow's VfW interface is set to decode VP8

However, there is NO functional/acceptable ACM decoder for Vorbis.

Still freezing...

[El Heggunte]

Hmmm, I didn't know the Matroska plugin (still?) doesn't support VP8 video

Anyway, the WebM samples I have do not freeze VirtualDub 1.9.11,
they just make it say "NO VIDEO"

For the time being, you'd better try the DirectShow input plugin, OR
frameserve VirtualDub with an Avisynth script

[alinhoalisson]

Hmmm, I didn't know the Matroska plugin (still?) doesn't support VP8 video

Anyway, the WebM samples I have do not freeze VirtualDub 1.9.11,
they just make it say "NO VIDEO"

For the time being, you'd better try the DirectShow input plugin, OR
frameserve VirtualDub with an Avisynth script

OK, I just downloaded the plugins again and now it says "NO VIDEO".
Anyway, I tried with DS input Plugin and it freezes.

I just checked the file with media info and it says the file has 1000fps O_O
Does that have to do with anything?

[El Heggunte]

I just checked the file with media info and it says the file has 1000fps O_O
Does that have to do with anything?

Possibly WebM is a format as pesky as FLV , I mean, both use variable framerate plus weird timestamps, which normally translates as "1000 fps"

However it's more probable that the Google DS filters are the actual source of the freezing problem, since they were created by Linux trolls Just uninstall them, and let the LAV Filters do their job.

[alinhoalisson]

I just checked the file with media info and it says the file has 1000fps O_O
Does that have to do with anything?

Possibly WebM is a format as pesky as FLV , I mean, both use variable framerate plus weird timestamps, which normally translates as "1000 fps"

However it's more probable that the Google DS filters are the actual source of the freezing problem, since they were created by Linux trolls Just uninstall them, and let the LAV Filters do their job.

IT WORK'D!!!!
Thanks so much.

Google's a piece of shit. The most powerful website on the web can't even have a functional codec? ¬¬

[jagabo]

Google's a piece of shit. The most powerful website on the web can't even have a functional codec? ¬¬

VFW is ancient, outdated, and deprecated by Microsoft.

[Cauptain]

Strange, because my virtualdub 1.10.1 open Webm default using FFDSHOW.




Claudio

[El Heggunte]

...
IT WORK'D!!!!
Thanks so much.
...

You're welcome

Google's a piece of shit. The most powerful website on the web can't even have a functional codec? ¬¬

VFW is ancient, outdated, and deprecated by Microsoft.

Is that an excuse for a lousy source-code?
I mean, if LAV Filters have functioned correctly with the DS-Input vdplugin, this implies both Google's WebM codec and ffdshow are broken.

[El Heggunte]

Strange, because my virtualdub 1.10.1 open Webm default using FFDSHOW.

<SNIPP>

Claudio

Please stop posting fugly pics

[El Heggunte]

[ d e l e t e d ]

[jagabo]

I mean, if LAV Filters have functioned correctly with the DS-Input vdplugin, this implies both Google's WebM codec and ffdshow are broken.

No, it doesn't imply anything about the quality of VP8. Google doesn't make a VFW VP8 decoder. You're using third party tools to access a VP8 decoder in VirtualDub.

[El Heggunte]

I mean, if LAV Filters have functioned correctly with the DS-Input vdplugin, this implies both Google's WebM codec and ffdshow are broken.

No, it doesn't imply anything about the quality of VP8. Google doesn't make a VFW VP8 decoder. You're using third party tools to access a VP8 decoder in VirtualDub.

Well, "someone" does have made a VfW VP8 codec ( <-- clicky ).
But that's NOT the point.
Since DirectShow IS capable of interacting with the VfW engine whenever necessary, then the fault actually is:

--- of ffdshow and Google's VP8 codec ; OR...

--- of the DirectShow Input Driver ; OR...

--- of BOTH.

[El Heggunte]

UPDATE

It seems "the root of all evil" ( besides the pseudo-scientist Richard Dawkins of course ) is the media splitter picked by the DirectShow engine. LAV Splitter and MPC's Matroska Splitter do work as they should, even when used with ffdshow --- whereas AV Splitter (and quite probably the WebM source/splitter from Google as well) "freeze" VirtualDub.

[trodas]

That make me wonder...

...could be the webm convereted to some other container w/o reencoding, like mkv...?

[El Heggunte]

@trodas:

in the MKVmerge GUI Window, in the Global tab, untick the checkbox "Create WebM compliant file".

As for other containers...

MP4 supports Vorbis (un-officially), but does not support VP8;
AVI supports VP8, but does not support Vorbis;

MOV =>

ASF --- in theory, yes, BUT...... well, better forget it;

MPG and TS --- no way, period.

[Cornucopia]

@trodas, WebM = MKV! It's just renamed extension (actually, it is a specific profile of MKV, using specific codecs).

@El Heggunte, acc'd to developer Alex Noé (maker of AVIMux-Gui), AVI DOES support Vorbis. QT on Mac supports Vorbis via XiphQT (though probably nothing for QT Windows). Same thing with VP8 (Google WebM QT Mac component).

Scott

[trodas]

Good call. So I tried and the result was "Can't open file" message...
MKV files I play w/o a glitch. In FFD show the VP8 is configured as libavcodec to decode it. So in teory, it should work, but... it does not.

When I tried to open the file into VirtualDub, it just tell me, that it have no videostream Suxxx.
(resulted file is there: http://dfiles.eu/files/qlgjpvnax - https://www.oboom.com/7GGEVXJW - http://www.sendspace.com/file/a8j61x - http://rapidgator.net/file/fb60864c55bfcd27dc294684df5ed3b3/Lechtani_chodidel_paradne_...lecny.mkv.html )


Tried several other webm files with same results. The output files are not playable/cannot be even opened in VD...! So that does not help at all. What I do wrong? Tried the simple rename webm to mkv and same result. Not playable, not possible to open in VD at all. Bad.

[Cornucopia]

Notice, in post #10 El Heggunte refers to the fact that VP8 decoding in ffdshow is BROKEN!

Read the rest of this thread and follow what the OP did.

Scott

[racer-x]

You can also open .webm files in Virtualdub via the FFMPEG import plugin.

[El Heggunte]

.......

@El Heggunte, acc'd to developer Alex Noé (maker of AVIMux-Gui), AVI DOES support Vorbis.

Yes, BUT storing Vorbis in AVI correctly IS NOT very-practical, because of the

HUGE container overhead, caused by the null audio frames.

Another no-no for the AVI container is Windows Media Audio. AFAIK, nobody has created an AVI muxer that inserts silence for properly translating the frequent "gaps" in the audio timestamps of the ASF container.

[MaverickTse]

You can also open .webm files in Virtualdub via the FFMPEG import plugin.

Thanks for the info, that means AviUtl should be able to handle WebM also:



Actually it is the Libav that handles the import (ffmpeg incorporate Libav sources anyway)

However, seeking is somewhat slow and jerky

[racer-x]

If you rename the extension from .webm to .mkv, Aviutl will open it just fine. Scrolling and seeking works fine then. Another option is AviDemux......

No Idea why anyone would want to edit that vp8 crap, unless there was no choice.

[trodas]

That is why - no choice. No other source material, need VP8 "crap" to get into VirtualDub. So so so sad that FFDshow support is broken

[trodas]

There is a attempt to support plugin based on MKV is made:
http://forums.virtualdub.org/index.php?act=ST&f=7&t=20294
Matroska TestVersion VPCodecs.zip

But it just show the dredful "MISSING CODEC" message instead of anything usable.