Brighten a video

[mats.hogberg]

could I select a compression for the audio too?

Yes.

If so which one?

Whichever you want. I'd suggest CBR MP3 - You need the lame acm codec.
But it's odd you're getting this audio problem - could possibly be due to some VBR audio in your source - always a mess to deal with.

/Mats

[EliteMarine]

Thanks! I'll try it when I get some time 8)

[abrogard]

You don't say what you were working with.

Did you do what Stevery said (about third post in the thread) : "Virtualdub. Hit File/open your video file, hit CTRL+F then the add tab,
choose the brightness/contrast filter, have a play around with it. Only downside to this is that you will have to re-encode the file or frameserve to an MPEG encoder. "

In my experience this works flawlessly.

ab

[EliteMarine]

Yes, I got it to work. The problem was that the file was out of sync even before I tried to brighten it up. I sync'd it all up and it works perfectly
Thanks for the responses!

[lordevaltro]

I know this is kinda outdated but I was wondering how I can brightnen a video using a diffrent program but still free.

[abrogard]

Here I am again a couple of years later !!!

Still looking for help.

What's wrong now? well I'm wanting to do this same thing again - for the first time in two years - and now I've only got TMPG 4 express, a very sleek looking piece of gear.

But how to frame serve to it from VDub?

I made the .vdr file (and ran auxsetup first) and I told TMPG to import that file and it seemed to do it alright but when I pressed 'START' it threw me back to the first screen and sat there dumbly looking at me. It printed source file names in source file fields. Didn't give me any options about the final file. I've had a ocuple of attempts. In one attempt I did set options for output as mpg, can't remember if I did that before including the file or after but it didn't work anyway.

I'll play with that.

I don't think it is doing anything. Task manager doesn't show it as using any CPU cycles worth mentioning and it should be eating them up, shouldn't it?

Anyone still around can help ?

p.s.

well I got a bit further. I kept hitting 'start' which don't do any more than start you off again with a new page sort of thing. stupid. so I finally realised click the next button, 'source' and then 'format' and then 'encode' - but it still didn't do anything.

So then I was on the 'encode preview' page and I clicked 'start encode' and it gave me an error 'unsupported file' and an error code and a message in red 'an error stopped the output'.

but then I clicked 'display output preview' and it started running the movie perfectly, complete with the brightening I'd ordered in Vdub. And I could hear the sound and it was perfectly in sync.

So I realise just because it can render the file doesn't mean it is prepared to convert it to mpeg and I suppose that's what's happening, is it?

God it is infuriating. I found a place to specify PAL video and a few other things and now I can't find that place again. I wonder if in that place I could change something that would make it work.

But in the meantime: anyone know what might be wrong? anyone know how to fix it with this tmpg? or where I can get the old tmpg that used to work? or what else I could use?

regards,

ab (the bewildered)

p.p.s.

excuse me folks. I'm such a dunce. Looks like with tmpg 4 express you don't need virtualdub. it'll do the brightening for you and make the dvd mpg file all in one hit. i'm all set to do it, looks like, but i haven't enough room on the drive. gonna take me hours to make room... but it looks to me like in the last two years things have changed so much that the answer to the original question is now:

Use TMPGEnc 4 XPress and do it all in one hit!

[davexnet]

I think the consensus is that frameserving from Virtualdub > Tmpgenc Xpress 4x is difficult. If you install Avisynth, you can frameserve directly from Avisynth, or you can address the .VDR file in an Avisynth script (For example AVISOURCE("my-file.vdr") ) - save the script and open it in Tmpgenc. That way you do get to use Virtualdub, with Avisynth acting as the middle man.

[abrogard]

Oh... I'm dumbfounded.... I'm wrong again? TmpgEnc Xpress is NOT able to do it all in one hit? Or you are saying it can but it is preferable to do it another way?

And you're suggesting two ways?

1. Frameserve direct from Avisynth to TMPGEnc
2. Frameserve file from Vdub used by Avisynth to output to TMPGEnc.

Why would I use which?

I've got Avisynth. Since two years ago when I last did this. I've never really understood it. Did a bit of googling and reading this morning and I'm still choking a bit on it. I can understand Avisynth being a prog that picks up a file, massages it and outputs it in the way the script calls for.

But I can't understand how so many other programs can do the same thing, it says.

Here's an extract from some Avisynth guide I read:

AVISynth is a frameserver program, which means it serves frames of video (and in some cases audio) to other programs. AVISynth is centered around AVS files, or specially formatted text files that act as a script which AVISynth executes. These scripts can then be read by other programs like Windows Media Player, VirtualDub, Premiere, TMPGEnc, and many other programs just like ordinary video streams.

"Which Avisynth executes..." , " .... can then be read by other programs...." Well if these other programs are reading the script aren't they then executing it? Or are they all capable of calling Avisynth, is that the thing? All these other progs recognise an avs file and find avisynth on your computer and serve the script up to avisynth which then picks up the source in question and framserves to the prog in question?

[davexnet]

I think you'll find the Tmpgenc Xpress will do the job itself, if you'd like to use it's filters. I'm just suggesting the other two methods are an option, for example, some of the more advanced filters and operations that Tmpgenc cannot duplicate. Which method you choose is up to you. If you don't need anything specific in Virtualdub, don't use it. Avisynth is a frameserver, and it gets activated when client apps open the scripts.

[abrogard]

O.K. thanks for that. It is a help.

I'll just use tmpg xpress right now because I don't want much. Later I'll explore the other methods.

I'm just a bit amazed that all these progs are aware of avisynth - I've got the idea they live in different spaces, like 'mainstream big bucks' and 'marginal freeware' or like that.

thanks again. I appreciate the help. I've made the room on the hard drive. I'll do the job.

[Gavino]

"Which Avisynth executes..." , " .... can then be read by other programs...." Well if these other programs are reading the script aren't they then executing it? Or are they all capable of calling Avisynth, is that the thing? All these other progs recognise an avs file and find avisynth on your computer and serve the script up to avisynth which then picks up the source in question and framserves to the prog in question?

When Avisynth is installed on your computer, it registers itself as a handler for .avs files that delivers video through the VfW interface. So when another program opens a .avs file, Windows calls Avisynth to 'execute' (interpret) the script and produce the required output. The other program doesn't need to know about Avisynth explicitly.