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Converting Mini-Cam AVI files to MPEG with TMPGEnc Plus

by Greg Chapman, MVP (retired)
Skill rating level 3.

One of the things that really makes me nuts when I use technology is when I spend more time learning the tool than actually doing what I wanted to do in the first place. Obviously, that means that I rarely ever get the real task done. Instead, I'm always half-way done and out of patience. And, this being the first edition of TechTrax for the new year, it seemed appropriate to write something for the large number of subscribers who received Mini-DV video recorders during the holidays. So we're going to discuss another wonderful product from the folks at Pegasys . In the October 2003 issue of TechTrax, I described their TMPGEnc DVD authoring tool. The grand-daddy of the TMPGEnc DVD is TMPGEnc Plus, a beautiful little MPG Encoding program with both a free and commercial version.

If you're one of the lucky folk to get your hands on one of these little video camera miracles, you're gonna love it for everything from the size of the media to the size and features of the camera. That wonderful feeling will last all the way up to the time you decide you want to make a DVD from your film. Then you'll probably walk away from that experience with a secret you won't care to admit - the software for the job is expensive, unreliable, slow and despite all your hard work, it will be next week before your production is converted to a DVD stream and ready to burn to disk.

There are a couple things you should know about moving the video from your tapes to DVD media. First, it almost doesn't matter what you use for capture software. The use of IEEE 1394 (FireWire) technology makes camera detection and capture by your PC almost effortless.

The next thing to know is that the capture software is going to create an AVI file but, by default, it will be AVI Type 1. The only software package I've seen that can reliably capture as AVI Type 2 is NeroVision Express. The reason you may care about this is that many MPEG encoders will only work reliably with AVI Type 2. Type 2 produces a higher quality file that is native to Windows and separates the audio to an additional data stream. It also produces an AVI header to the stream. Type 1 creates a smaller file and does not include these additional features.

The final big consideration is that when you produce a DVD, any input images and video will have to be encoded to MPEG before the DVD file system can be produced. It's this part of the entire production process that can cause all you efforts to be spoiled as not all encoders are created equal. Image artifacts, inefficient encoding algorithms, etc., can make all the features of your production tool seem useless and you only discover the fact 15 hours into the burn.

I've greatly simplified by video editing experience by first changing my goals. One thing I know above all else is that no matter what I finally do in editing video, the one thing I'm going to be using over and over is an MPEG encoded stream in the end. So, after capturing the video to the PC, the next thing I do is the MPEG encoding and that's where we start using TMPEnc Plus.

You just know the folks at Pegasys were thinking about us home video users when they built this tool. Amongst the things it can is batch encoding of files. Simply select the files you want to encode and turn it loose. The next feature they built just for us is the Project Wizard. When TMPGEnc Plus first starts, it's the Project Wizard which greets you first. The default values are even the ones you're most likely to use. Let's take a look!

To start, we've captured a little video stream of a mother practicing her job. If you've ever wondered how mothers can face the funniest situations and delivered that required stern look without cracking a smile, this video shows how they train.

Start TMPEnc Plus and start your way through the wizard. There aren't that many steps to the wizard so you'll be able to turn your attention to other matters very soon. Click Next


Don't let this screen confuse you, all you need to do is Browse to the AVI file you captured. The Audio File field will fill in automatically once you've done so.


So go ahead and browse to your file...



Click Next...

...Next again...

...Click OK or check to not display this message again and then click OK...

...Take a look at these values before moving on. The settings you see here are typical for NTSC output. You might want to make a note of these in case there is more advanced work you might want to do to the video later. When you're satisfied, click Next...

...Check the output file name and change it if you prefer. Click Next...

And the process begins!

When the job is complete, you'll have an MPEG encoded video file ready for inclusion in your next video project!

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