Joining 3 AVI's. Having trouble with video sizes. AVIDEMUX

[UmmAddan]

i'm trying to join three avi videos using avidemux. the first two are okay to join but when i add the third one the following message appears

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height is different between first and this video stream

You cannot mix different video dimensions yet. Using the partial video filter later, will not work around this problem. The workaround is:
1.) "resize" / "add border" / "crop" each stream to the same resolution
2.) concatinate them together
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what does it mean?? i couldnt find 'resize' option anywhere.

[ricmetal]

hi
look into the program's help me file and search for the keyword 'resize', that always helps me find out quickly if the program support such feature. if it does, and if the readme file, or helpme file, does not tell me where the feature is, then i thoroughly look through the programs menu and click on what i dont know, for eg, save as.. i know what it means so i dont click. 'compulate' i have no idea what it means, so i click it and see if its the thing i want
cheers

[redwudz]

Some forms of AVI have restrictions on demensions because of the codec used. Divx needs widths in a multiple of 4 and heights in multiple of 2. Xvid doesn't seem to have these restrictions.

If you resize, you have to re-encode. Same with cropping to reduce the size to the same as the other video. Adding a border will 'pad' out the video to a larger size to match the other videos, also requiring re-encoding. You would also need to keep the same aspect ratio, the width vs the height. Re-sizing and re-encoding will also create some quality loss.

Then you can concatenate, or combine or join the videos together.

VirtualDub has those options. Resize is one of the filters. Cropping and adding borders is available with filtering. Most programs will require the videos to be joined to have the same format, framerate, sizes and attributes, and it's also the same with the audio, if you are adding that in.

If just the height is different, you could pad it out with a border. Or resize the whole video frame.

I haven't used Avidemux, so I'm not familiar with it tools. You can drop most videos into Gspot and see the demensions and other attributes.

[motleycool]

I was able to re-encode but the clips are faster than the clips from the other video.

[guns1inger]

It sounds like you have downloaded parts from two different versions. We already know that one part was a different resolution, so it did not originally come from the same source as the first two parts. I suspect it also has a different framerate.

My suggestion ?

Open the first part. Look the resolution and framerate for the first part, and re-encode the odd part to match, then join them all up. It won't be pretty, but if they don't match, and you must join them, that is the simplest way to go.