[ubuntu-uk] Converting many .jpgs to mpeg4 without using

[Toby Smithe]

On Mon, 2007-06-04 at 13:56 +0100, Martyn wrote:

> If you've got a list of jpegs in files.lis then something like
>  
>  for file in `cat files.lis `; do echo ffmpeg -options $file ; done
>  
> should do the trick. If the ffmpeg encoding is complex then it might
> be cleaner to code a simple script that takes the filename as a
> parameter and then call that script with
>  
>  for file in `cat files.lis `; do ./myscript.sh  $file ; done

OK. Maybe this was actually the first idea that I thought of, but I
thought it would have two flaws:

1) If ffmpeg needs all the files in one command (and I would assume, to
create one video from a number of frame images, it would - although I'm
not certain, and you're free to correct me), then a for loop wouldn't be
what you want.

2) Following from the above: Bash generally only accepts a string of
32768 characters' length until it stops accepting arguments. If the list
is "thousands of files" long, then this may exceed the acceptable
length.