ffvdub or ffdshow encoder image processing doesn't work with VirtualDub?

[Milardo]

Hi,

I'm using virtualdub 32 bit on my win 7 x64 os and I've got ffvdub.vdf and ffdshow encoder. Either one I have used when I am encoding video in virtualdub will not output any of the image processing filters like post processing or visualizations! Is that how it is supposed to work? Basically I would like whatever image processing filter i checked and configured to be encoded/processed into my output file.

[poisondeathray]

do you have 32-bit ffdshow ?

another option is to use avisynth 32-bit , configure ffdshow 32-bit to be the decoder , and use directshowsource()

[Milardo]

Yes, my version of ffdshow is 32 bit, but I would like to use ffdshow image processing filters.

[poisondeathray]

ffdshow has to be activated in the DEcode chain to pass through the filters ; otherwise filters won't get passed through. For example, do you see the icons pop up in the task bar when you have the video open in vdub? probably not.

One way of doing this is using vdub directshow input driver , another way is to use avisynth and directshowsource

what type of source file ? use mediainfo if you don't know

[Milardo]

Well actually i have tested it in win xp 32 bit and i couldn't get it to work either. By the way I'm using beta 7 of ffdshow tryouts. It is an avi file with xvid codec. I believe im using libavcodec in ffdshow decoder/ffdshow encoder to decode the file and i have tried xvid too i can choose the flip video option and it works but not the image processing.

[poisondeathray]

do you see the ffdshow icons pop up? if not, you're not using directshow ffdshow

another way to tell, is in vdub, file=>file information , if you don't see ffdshow and it says xvid mpeg4, you're not using ffdshow to decode

vdub uses vfw system, not directshow. To force it to use directshow, use one of the 2 methods listed, and it will work

[poisondeathray]

The easiest way it to use directshow input driver

in the open dialog box, highlight the AVI video, but in the drop down box, before you push open, select "directshow input driver" instead of "all types"

This means it will be routed through directshow, and if you have xvid enabled in ffdshow (red icon for directshow, not yellow icon for vfw interface) , it will pop up

you need the directshow input driver for vdub, and can download it from videohelp's link on the vdub page

[Milardo]

Oh yeah, no when decoding i don't see ffdshow icons in the tray area, how do I enable this besides directshow source, etc.? It does say ffdshow video codec in file information.

[poisondeathray]

do you have tray icons as hidden in the ffdshow configuration?

do the ffdshow icons pop up when you play video in mpc for example ?

the easiest way is to use directshow input driver, no scripts. You use vdub as you normally would, it just takes 0.5 extra seconds for the dropdown box.

[Milardo]

No the icons are not hidden and when i play the videos in windows media player 9 for example the icons show up, trying directshow input driver now.

[poisondeathray]

It does say ffdshow video codec in file information.

I missed this

If vdub file info says ffdshow codec is decoding, then it's using the ffdshow VFW configuration

Then theoretically if you use the VFW filters (Yellow icon, not Red icon) , it should pass those filters through. Note VFW is different than Directshow system. If you activate filters in directshow they don't affect VFW and vice versa. So if red icon pops up with your filters in MPC or WMP, that doesn't affect vdub. You need to use yellow icon or VFW system.

But by using the directshow method, you ensure the same thing (preview in WMP, MPC, or vdub will give same results)

[Milardo]

What is the yellow/red icon? I've got vfw ffdshow configured right i think. Tried the directshow method but i still can't get my image processing output to encoded file.

[Milardo]

Oops sorry im using the classic icons.

[poisondeathray]

yellow icon = vfw
red icon = directshow

if you're using directshow, activate the filters in the red icon

if you're using vfw, activate the filters in the yellow icon

directshow works for sure, i've tested it, not sure about vfw

Tried the directshow method but i still can't get my image processing output to encoded file.

did you load with the drop down menu ? , did you see the icon pop up ?

[Milardo]

If i play the video file with a program that does not use ffdshow or directshow will the image processing that was encoded/processed to output file show up? That is what I want to do. Yes I did load the file with the directshow driver and the icons came up. When i was using vfw no icon came up only when encoding.

[poisondeathray]

If i play the video file with a program that does not use ffdshow or directshow will the image processing that was encoded/processed to output file show up?

No. If you are using ffdshow filters, they will only be passsed on if ffdshow is decoding in the playback chain

But if you used ffdshow to decode with filters , and encode (with anything), the encoded file will be permantly have those filters regardless of software

The danger of encoding with ffdshow filters, is you forget to turn them off, and they are applied to other playback or even other encodes (if using other encoders directshow based, or directshowsource in avisynth) . You will find equivalent and better filters in avisynth and/or vdub

Yes I did load the file with the directshow driver and the icons came up

And with those icons, did you select your filters ? and push apply & ok ? when you scrub the timeline in vdub, you should see the effect of the filter immediately, and they will be passed on to the encode (you can use any compression, not just ffdshow to encode)

[Milardo]

Yes, the filters did show up. I thought that was the whole point of the ffdshow encoder to be able to encode videos with image processing it says encoder. Does this mean if I want permanent effects I have to screen record it?

[poisondeathray]

No it's permanent the way you're doing it. The effects get passed on to the encoded file. See above, I edited my post

But if you playback that encoded file, but forget to turn them off during playback, they get "doubly applied". It's the danger of using this method

[Milardo]

Oh okay that is good. Still can't get it working even played back in a player non ffdshow/directshow. However, options like flip video work, strange.

[poisondeathray]

when using directshow method in vdub (with ffdshow directshow filters), whatever you see in the preview should be passed on to the encode

you can use vlc to test playback (non ffdshow, non directshow player)

what filters are you using that don't work ?

[Milardo]

Yeah, i just tried out ffvdub again and it seems post processing and visualizations aren't working as filters when encoding. Noise is working and sharpen for example ( i used the preview option when checking filters).

[poisondeathray]

Yeah, i just tried out ffvdub again and it seems post processing and visualizations aren't working as filters when encoding. Noise is working and sharpen for example ( i used the preview option when checking filters).

They're working for me. push apply & ok then scrub the timeline

What settings aren't working for you ? Do they work when set the same way in mpc or wmp ?

[Milardo]

How do I scrub the timeline? Any post processing setting doesn't work. However, when I decode video like playback in wmp post processing works just fine.

[poisondeathray]

With the video opened with the directshow driver, activate your filters, push apply & ok, and just drag the bar to see the preview. The changes should be visible in the vdub preview window. When you encode the file, the changes will be passed on . Check the encoded file in VLC (or disable the filters and check in wmp or mpc).

I just tested a few, they work fine here - the filters pass on to the encode. Not sure what else to tell you

[Milardo]

I used the directshow filter in windows 7 x64 but the icons didn't show up for some reason even though they were configured right. By the way, what version of ffdshow are you using? Also, I found that just regular setup of using ffdshow encoder for encoding video in virtualdub it seems some post processing filter isn't working. I was able to use for example noise and it encoding video with noise came out just fine. I really don't know why post processing doesn't work and a few others as well.

[Gavino]

I think you and poisondeathray are talking about two different things.
He is talking about using ffdshow as a decoder, where all ffdshow processing options are available and applied before VDub even sees the video (and obviously preserved into the final output).
I believe you are trying to use it via ffvdub, a VDub filter which makes ffdshow processing available inside VDub as part of its internal filter chain. Here, the postprocessing filters are not available.
See http://forum.doom9.org/showthread.php?t=147842

[Milardo]

Okay, but does the ffdshow encoder as the video encoder i would use in virtualdub, would post processing filters work there?

[Gavino]

I may be wrong, but I don't believe any filters work on the ENcoding side.
Filters are only applied as part of DEcoding (but of course once applied are passed on to any encoded output).
See poisondeathray at post #4.

[Milardo]

Does using the directshow input driver in win7 x64 with virtualdub not work the same as in win xp? Meaning that I can't get the icons to show up (ffdshow) and they don't seem to be decoding the video. How do I get ffdshow to decode the video in win 7 x64 using directshow input driver with virtualdub?

[Gavino]

I have no personal experience with Windows 7, but I have seen others recommend Preferred Filter Tweaker to solve this problem.