Overview of the EBU-TT live toolkit.

This page is a short introduction to using those scripts that demonstrate toolkit components. For more details and information about other scripts, follow the links below.

To run the scripts, you will need to first set up the environment and build the code. Please follow the instructions in https://github.com/ebu/ebu-tt-live-toolkit/blob/master/README.md.

Not all components are implemented yet - see https://github.com/ebu/ebu-tt-live-toolkit/wiki/Components for a list of all components. This page will be updated as more scripts are added.

The components mimic the nodes and carriage mechanisms defined in the specification. Producer components create documents; consumer components consume them. Each script combines a carriage mechanism implementation with a processing node to create code that can operate as a node.

• Nodes and Carriage Mechanisms
  • Processing Nodes
  • Carriage mechanisms
    • Filesystem Carriage Mechanism
    • WebSocket Carriage Mechanism
      • Error handling
    • Direct Carriage Mechanism
• Scripts and their functions
  • The ebu-run script
  • Simple Producer
  • Simple consumer
  • User Input Producer
  • Distributor
  • Handover Manager
  • Buffer Delay Node
  • DeDuplicator Node
  • Resequencer Node
  • Retiming Delay Node
  • EBU-TT-D Encoder
• Configuration files and ebu-run
  • The configuration file structure
• Document and sequence validation
  • Validation framework
  • Semantic parser patch
• User input producer
  • Demo
  • Handover Manager
• Timing resolution and consumer logic
  • Document Timings
  • Sequence Timings
• Segmentation of EBU-TT-Live document sequences
• DeDuplication of EBU-TT-Live documents
• Conversion of EBU-TT-Live documents to EBU-TT-D documents
  • The problem
    • Percentages and the EM square
  • The solution