Text Source

[lupin3rd]

A discussion about text source features.
Resolume has a very good text instrument that present those features:

Other interesting features:

• load a text file
• set text field and other options by OSC
• customizable mode to show text (one char at time, one word at time); in this way we can sync music with an OSC message that go to next char or to next word in the text field or in the text file

[brunoherbelin]

Thanks for opening the discussion ! Good that I finally address this and add a long awaited text source !

The text will be rendered with gstreamer textrender : all properties for font description and layout will be exposed in properties of the source.

The text source will take a string as input:

• if the string is a filename, if the file is found and readable, then the content of the file will be used:
  • if the file is a subtitle format, then the subparse plugin will be used and the text will change in time accordingly
  • if the file is a raw text file, the entire content will be shown as one string
• if the string is not a filename, then the content of the string will be shown

I will also expose the change of the string on the OSC API, e.g.

/vimix/current/content s 'hello vimix'

This way, you can send from OSC a new string at anytime to do the animation you want 😄

More advanced or custom text features would be beyond what vimix could do. However, then thinking the problem differently and preparing all rendered frames with the animated text and creating an image sequence source (that can be played, stopped, seeked, play next frame, etc.) would be an alternative with complete freedom!

[brunoherbelin]

Okay, let me know if you can test the new Text source in Beta 58371c3

Here is how it should look like;

It uses the gst textoverlay plugin with Pango markup for rich test and for font description.

[brunoherbelin]

Example animation with subtitle : save this hello.txt file as hello.srt and open from the Text source creation;

[lupin3rd]

Hi Bruno!
It's very cool :-D and very complete!
I tested all functions on GUI and works very fine!
Tomorrow i will do some OSC tests !

[brunoherbelin]

Good 😃
Please note the OSC target is contents
e.g.,

oscsend localhost 7000 /vimix/#1/contents s "we <b>&lt;3</b> <i>vimix</i>"

[kubriel]

yep, seems to be working nicely, thanks!

[lupin3rd]

With OSC message i can't send an empty message, i try some solutions but no way. It's usefull if i want to clean text.

[brunoherbelin]

Accepting empty string in Beta e42afcb