fl_route_channel_to_mixer
Assign a global channel to a mixer track and verify the routing, with optional guards to prevent conflicting writes.
Instructions
Set one global channel's absolute mixer destination and verify it.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| channel_index | Yes | Global channel index. | |
| expected_before | No | Optional guarded channel fingerprint/destination. | |
| mixer_destination | Yes | Absolute mixer destination; -1 leaves it unassigned. | |
| session_fingerprint | No | Optional bridge/project-session fingerprint from a recent read. The write refuses after bridge reload or a reported project load. This is a concurrency guard, not authentication or a durable project identity. |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| after | Yes | ||
| before | Yes | ||
| verified | Yes | ||
| warnings | No | ||
| applied_at | Yes | ||
| index_scope | No | global | |
| channel_index | Yes | ||
| project_saved | No | ||
| bridge_command | No | channel.route_to_mixer | |
| schema_version | No | 1.0 | |
| undo_point_created | No | ||
| verification_basis | No | readback_on_a_later_fl_idle_tick | |
| session_fingerprint | No | ||
| verification_summary | Yes | ||
| expected_before_applied | No | ||
| requested_mixer_destination | Yes | ||
| session_precondition_applied | No |