Rendering/Encoding Problem

[Mike of the Desert] · Post by **[Mike of the Desert]** » Fri Dec 14, 2007 7:04 am

Last Update: Saving in Avi the audio is even mute.

Qyot27 · Post by **Qyot27** » Fri Dec 14, 2007 6:13 pm

The artificial bars are contributing to the distortion problem when stretching it to 1920x1080. With the letterboxing it already apparently has, it may have been filmed for 2.39:1 display (Anamorphic film format rather than the DVD-centric anamorphic widescreen). If they require a 4:3 ratio, then that is probably best done using pan & scan techniques, unless they're fine with it being letterboxed. In this case, all resizing of the image should be done after exporting, with AviSynth. I simply don't trust editing programs to do it right, even though I know After Effects seems to be better about handling scale than Premiere.

The framerate issue - what is the detected framerate of the output file (in VirtualDub using File Information, for instance)? If the lagging is occurring on playback in WMP or something, then it's probably just due to the machine not being able to handle decoding it fast enough - that won't affect the actual fps, though.

Are you sure the audio is even selected to be exported? There should be an option to allow it in Composition->Make Movie (granted, my experience with AFX is on 6.0, but I assume it hasn't changed). Is the audio active on the timeline as well?

[Mike of the Desert] · Post by **[Mike of the Desert]** » Fri Dec 14, 2007 6:24 pm

The Framerate Issue: I'll export it to AVI Again and see what VDM says about the Fps. The original Mov file cannot be loaded, sadly. (But it's 25fps PAL)

The Audio Problem: No, everything is ok, it's just plain mute.. But that's something that I could try to fix adding it AGAIN later on, if we discover that it's just the computer slow on handling the AVI video (Even if to be honest I'm quite sure about the performance of my work station)

The Resize: Well.. In the end I don't have to resize anything, right? 1440*1080 Square Pixels is clearly 4:3 and that's what they asked to me. Sadly I'm even not able to convert the original Mov file to Lossless AVI to make some tests.. ;\ But in the end if I understood well, even if I would have to, it should be made with AviSynth during POST-Production.

So.. We can quit this matter. One problem out.

Sierra said to me that often .Mov files are just often horrible to see on a Windows PC, but as I answered to her:
Yes, I'm working on a PC.. But if the original Mov video (The one I'm editing) plays with an excellent quality, could it be that the rendered one it's so awful on the monitor?

Thanks for the detailed support, tomorrow I'll add an update saying what I discovered. It's so frustrating to have such problems.. ;\

Qyot27 · Post by **Qyot27** » Fri Dec 14, 2007 9:06 pm

At this point, the only thing I could suggest to figure out what's going on - conclusively - is that you cut about 20 seconds worth of the video using a hex editor or something and upload it somewhere so that it's possible for others to know what's being dealt with here.

Unless anybody else knows something that can cut segments from MOV files, that is.

It is possible to open the MOV in VirtualDub if you use AviSynth - you can try DirectShowSource, but be aware that to accomplish that you need to be able to play the original MOV in Windows Media Player (which can usually be done using a combination of Haali's Media Splitter and ffdshow). Otherwise, I'm out of ideas.

[Mike of the Desert] · Post by **[Mike of the Desert]** » Sat Dec 15, 2007 6:08 am

I already tried DirectShowSource, without any good news, sadly.
This is what VDM says when I load into it the exported AVI File that -I discovered- has audio, it's just as zigzagging like the framerate of the video (even more to be objective). It says that the Fps are 25 but I absolutely can't imagine why every program I have show them in that way.

Even if you're out of Ideas, thanks a lot for your support.

At this point I think I'll have to directly ask to the director for a different source file, If I can't solve this problem I'll just change the .Mov with an .Avi and replace the source file of the project.

For then export it again to Mov.

post-it · Post by **post-it** » Sat Dec 15, 2007 3:48 pm

.. MAC's have a few codec's which they use that are Standards and were never converted to PC. Of these, my favorite codec's are RSTP ( Sorenson ) & RZPA ( Inidego ) from the QT2.1 & QT2.3 bundles of 1994.
.. good luck trying to find them.

. QT 3.0 dropped them.