Pthread Text plugin for OBS Studio

Introduction

This plugin displays text with many advanced features.

• Markup
• Text alignment
  • Left, center, and right
  • Justification
• Outline
  • Configurable width, color, and opacity
  • Configurable shape of corners
  • Blur
• Transition
  • Fade-in, fade-out, cross-fade
  • Slide
• Threaded glyph drawing
  • Lower priority to draw glyphs so that other sources and encoders are not impacted
  • More frequent polling of the text file
• Automatic line-break supporting East Asian languages
• Saving as PNG files for post production

Markups

See the Pango Markup Language for detailed markup tags available.

Properties

List of properties describes all available propeties.

Updating text

This plugin can set the text by setting or from a text file. To have transition, it is recommended that the text is updated from a progam, not by typing on the propeties window.

Updating text using obs-websocket

You can use SetSourceSettings request for obs-websocket. Request fields will be as below for example.

{"sourceName": "source-name", "sourceSettings": {"text": "your new text"}}

Updating text file

This plugin checks these file attributes; inode, mtime, and size. Recommended flow to update the text is as below.

1. Set the source file in the property of this plugin. Let's say /dev/shm/text.txt for example.
2. Write to a temporary file. your_program > /dev/shm/text.txt~
3. Move the temporary file to the target file. mv /dev/shm/text.txt~ /dev/shm/text.txt This step is atomic so that the plugin won't read the middle state.

Furture plan

• support Windows,
• and feature requests.