From GNU Radio
This block creates a tag object.
The tag objects are created using the python_to_tag Python function to make it easy to generate a tag_t in Python. The call looks like:
gr.tag_utils.python_to_tag(($offset, $key, $value, $src))
- id (R)
- ID of the tag, can be used to reference it in other blocks.
- Offset (R)
- While tags are based on an absolute offset, this is based on a relative offset that must be appropriately translated by the block using it. For example, this is used by the vector_source blocks, which will treat a 0 offset in the tag as the first item in the stream when the vector starts or repeats.
- Key (R)
- Name of the tag.
- Value (R)
- Value to give to the tag (can be a number, a boolean or a string).
- Source ID (R)
- Name of the source of the tag, is sometimes used by certain blocks.
- C++ files
- Header files
- Public header files
- Block definition