py-ni-traktor-tsi

Python library for reading and writing Native Instruments Traktor Pro TSI mapping files.

What is TSI?

TSI files are Traktor's controller mapping format. They contain XML with a Base64-encoded binary blob using a nested TLV (Tag-Length-Value) structure. This library handles the binary format so you can programmatically create and modify mappings.

Installation

pip install -e .

Usage

Parse an existing TSI

from traktor_tsi import parse_tsi, get_device_info

binary = parse_tsi("my_mapping.tsi")
info = get_device_info(binary)
print(info)
# {'name': 'Traktor.Kontrol X1 MK2.Default', 'comment': 'My Mapping', ...}

Build a mapping entry

from traktor_tsi import (
    build_cmai, build_cmad_button, build_ddcb,
    rebuild_tsi, write_tsi,
    CMD_SLOT_MUTE, slot_target,
)

# Mute toggle for Deck A, Stem 1
cmad = build_cmad_button(target=slot_target('A', 1), interaction_mode=1)
cmai = build_cmai(midi_idx=0, mapping_type=0, cmd_id=CMD_SLOT_MUTE, cmad_payload=cmad)

ddcb = build_ddcb([cmai], ['Left.HotCue 1'])
new_binary = rebuild_tsi(original_binary, ddcb, comment='My Stems Mapping')
write_tsi(new_binary, 'output.tsi', 'template.tsi')

CMAD field reference

Example: X1 MK2 Stems

See examples/x1_mk2_stems.py - generates a 188-entry mapping that turns the X1 MK2 into a dedicated stems controller for 4 decks.

python -m examples.x1_mk2_stems \
    --source StemsX1MK2.tsi \
    --output X1_MK2_Stems_trosha_b.tsi

Binary format

The TSI binary uses nested TLV chunks (4-byte ASCII tag + 4-byte BE length + payload):

DIOM > DIOI, DEVS > DEVI > DDAT > DDIF, DDIV, DDIC, DDPT, DDDC, DDCB, DVST

Command IDs sourced from cmdr-editor.

License

MIT