Output video width is not divisible by 16

[midiw]

I have a few foreign film .avi files plus their related English subtitles files. They are NTSC .

Yesterday i was able to encode one of film files with subtitles and fffmpegX worked like a charm. After toasting i was able to watch the movie using my TV/DVD player.

Then i tried to do some other different work with ffmpegX with .avi files of some TV shows but could not get it to work because of the following message

Output video width is not divisible by 16

. Read thru the manual but unable to locate the information for my question.

Theni tried another foreign film with English subtitles and again i had same message :

Output video width is not divisible by 16

What and where in ffmpegX do i change ?

Does ffmegX not go back to a default setting?

Really need help/advice please.

[Baldrick]

Moving you to our ffmpegx section.

[midiw]

OK, thanks Mr Baldrick.

[redwudz]

Codecs like DivX only accept video with pixel width divisible by four and height divisible by 2. Xvid isn't so particular, but you mainly want to use even numbers of pixels, height and width with it. Don't know what codec you are using, but it may have similar limitations. Sometimes if you re-encode, you will have to resize or use black bars to keep the size in compliance. I don't use ffmpegX, but others could probably give you better advice.

[Case]

The type of conversion that you were trying to do requires that the output video has a width that is somewhat restricted in size. Either the codec (or its implementation) or the conversion engine can require this.
The width of the output video in pixels can be set in the Video tab > Video Parameters > Video Size. The first field is the width, the second field is the height.
If you fill in just one and then use the Autosize selector, then ffmpegX will fill in the other dimension by calculating with the selected aspect ratio.
A width divisible by 16 means one of {16, 32, 48, ... 624, 640, 656, 672, 688, 704, 720, ...}

Are you converting AVI to AVI or AVI to DVD-Video?
Do note that DVD has additional video frame size restrictions, that is: 704x480 / 720x480 for both 4:3 and 16:9.

[midiw]

Case,

Thank you for the very specific/detailed information.

Yes indeed that was the answer.

I was going from .avi to DVD ( for watching those movies on my TV/DVD player ).

This old blind guy here failed to see and to use the Video tab.

Now, i know there is an on line manual but i wish there was a down-loadable pdf because i am not a fan of on line manuals.

Walter