[ubuntu-uk] Question on ffmpeg encoding

[Simon Greenwood]

On 23 July 2010 09:26, ByteSoup <bytesoup at gmail.com> wrote:

>  Hi,
>
> Im trying to use ffmpeg to help my kids produce some stopmotion video
> files. Ive used this FAQ as a good reference:
>
> http://www.ffmpeg.org/faq.html
>
> Ive got past the bit where I reliased I needed to rename my files in
> sequential order and produced a mpg file, covered here
>
> http://www.ffmpeg.org/faq.html#SEC14
>
> I got a couple of questions:
>
> 1. the syntax using the "%d" would I be right in saying that pic%06d,jpg
> means any file from pic000001.jpg through to and including pic999999.jpg?
>
> 2. The mpg output seems to have a fixed frame rate, if I use another frame
> rate with the -vcodec option for example -vcodec mpeg4, how do i specify the
> frame rate?
>
> 3. What other methods has anyone used? Are there better suggestions or is
> ffmpeg the best package to use?
>
>
1. Yes

2. The -r switch specifies the frame rate but I believe that's 24 for any
codec as that's the standard for video and any other rate would appear to
run fast or slow. That's probably not what you want to achieve.

3. There are a number of animation programmes in the Software Centre which
will at least give you a GUI - I can see stopmotion and KToon but have no
experience with them. A quick google also brings up Pencil.

ffmpeg is the standard for video processing and is probably somewhere behind
other software.

s/




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