On Thu, Jan 8, 2015 at 7:42 AM, Jeremy Yoder <jmyo...@gmail.com> wrote:
> Looking at the list of filters it looks like "luma" is the only one that
> will take the current and next frame as input. Is there any way to
> accomplish the same thing with other transitions, like "composite" or
> "affine" (maybe using the "transition" filter somehow?).
>
>
Per the subject line, are you basing this question on demo/mlt_slideshow
[1]?
If so, I consider that just a cute hack with a quick dead end as it offers
little-to-no control. To answer your question, i think the answer is "no."
Of course, you can probably specify a gradient wipe image file to the luma
filter to get a different type of transition. However, you are better off
to write a tool or script that generates MLT XML from your set of images.
Maybe you give that tool a list of images as a newline-delimited text file.
At the very least you now have more control over image file selection and
order. Maybe turn that text file into tab- or CSV-delimited and add a
column that specifies whether to apply a center crop operation for that
image. Next, add a column for the transition type. You see what I mean?
[1] https://github.com/mltframework/mlt/blob/master/demo/mlt_slideshow
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