A TypeWriter effect for kdenlive and mlt using the TypeWriter library I developed for this purpose

[Rafal Lalik]

Hello again,

I made some improvements and implement the typewriter effect as a real
mlt effect. You can try it out by yourself. It means no more needs to
play with original kdenlivetitle producer as a intended to do in the
beginning. This typewriter can be used on every supported producer, but
currently only kdenlivetitle is supported. If you need it for another,
let me know and I will do it.

It is distributed as a additional library for mlt. You can also try it
first out on my demo page

  http://rlalik.com/demos/typewriter/

to learn how to prepare a proper pattern.

To use it with mlt/kdenlive:

1. Install additional effect library from this repository:

  https://github.com/rlalik/mlt_extra_modules

It is important to install it in the same location like original mlt
installation, e.g. /usr/lib/mlt/, most likely you need to call:

  ./configure --prefix=/usr
  make
  sudo make install

Adjust --prefix value if needed.


2. Download and copy this file


https://raw.githubusercontent.com/rlalik/kdenlive_tw/cdata/data/effects/typewriter.xml

to the kdenlive effects directory, e.g.: /usr/share/kdenlive/effects/


3. Open kdenlive, create new title page and put a TW pattern text
enclosed within markers, e.g.:

  |^|:c[4]{Example}|$|

Markers are required in order to extract the pattern from the xml data
of the kdenlivetitle producer.

4. Add typewriter effect to the title on your timeline.

Regards and enjoy it,
Rafal