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Guys (and gals)
I would like to share what I found after many weeks of toiling with TMPGEnc "Unable to open file" problem.
By the way, TMPGEnc in discussion here is the normal one, the Plus one, and the XPress one too.
Case #1 :
The most well-known case. The only codec for your file was in DirectShow filter but you didn't enable this high-priority enough. Then other plug-in's will try to open the file and fail and give you that message.
So, usually, bumping up the priority of 'DirectShow' filter in your environmental settings solves this. (Or, by disabling 'VFW Reader'..)
Case #2 :
You can open the file, but then you don't have the audio source.
This happens when you have AC3 audio in your avi file. TMPGEnc does not support AC3 (especially the multi-channel one).
You'll have to follow another guide for this issue. (There are plenty available.)
Case #3 :
This is the one I wanted to really discuss about.
You have everything setup right, but then you can't still open the video source.(Don't care about the audio source due to Case #2.)
This happens when you have the latest version of ffdshow.
The ffdshow later than 2004/10 version is incompatible with TMPGEnc's DirectShow filter.
That's it, you're screwed.
What's the solution?
You can step back your ffdshow to 2004/10 revision.
Or,
You can enable VFW interface for your codec in ffdshow (ffdshow now offers both VFW interface and DirectShow.), and disable DirectShow filter in your TMPGEnc plug-in, and use VFW (bump it up high.. if you need to.).
That should solve your problem.
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Now, here's the part of the problem that I haven't solved yet.
I found all this and I'm somewhat happily going on with encoding,
but there's something that really puzzles me.
I had an avi file encoded with XVid + AC3 multichannel.
I went the VFW route with the latest ffdshow. I enabled the subtitle in the VFW settings. But the subtitles doesn't show up in the preview of TMPGEnc.
So, I figure I must have another XVid codec that TMPGEnc must be using. (Also becuase I didn't see the systray icon for ffdshow, which usually appears if I'm using that filter.)
So, I disabled XVid in the VFW settings. I did the preview in TMPGEnc again, and .. I have NO VIDEO.
So, in one hand, if I disable XVid codec in VFW of ffdshow, I have no video for TMPGEnc, that tells me that ffdshow is the only Xvid codec I have.
In another hand, when I enable XVid codec in VFW of ffdshow, the ffdshow codec icon doesn't appear, and the settings I made in the VFW settings (including the subtitle) does appear either. That tells me TMPGEnc is using another codec.
I'm lost there.
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