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MIDI Event DAT

Summary

The MIDI Event DAT logs all MIDI messages coming into or out of TouchDesigner from all MIDI In/Out operators. Note: no messages will be logged if there are no active MIDI In or Out operators set to receive them. It outputs columns in a table format: message, type, channel, index, value.

The table is FIFO "first-in first-out" and limited to parameter-set number of lines. An optional script may be run for each packet received.

See also the MIDI In DAT, MIDI In Map CHOP, MIDI In CHOP, MIDI Out CHOP, Tscript midi() Command.

PythonIcon.pngmidieventDAT_Class


Parameters - Connect Page

Active active - Logs MIDI events when turned on.


Parameters - Filter Page

Skip Sense skipsense - Does not log sense messages when this is turned on.

Skip Timing skiptiming - Does not report timing messages when this is turned on.

Filter Messages filter - Turning this on enables the message filtering parameters below.

Message message - Filter by the MIDI message content. Example "Control Change"

Channel channel - Filter by the MIDI message channel. Channels range from 1 to 16.

Index index - Filter by the MIDI message index. Indices range from 1 to 128.

Value value - Filter by the MIDI message value. Values range from 0 to 127.

Dir dir - Filter by the message direction, "input" or "output".


Parameters - Received Messages Page

Callbacks DAT callbacks - Runs this script once for each row added to the table (ie. MIDI event recieved). See midieventDAT_Class for usage.

Execute from executeloc - - Determines the location the script is run from.
  • Current Node current - The script is executed from the current node location.
  • Callbacks DAT callbacks - The script is executed from the location of the DAT specified in the Callbacks DAT parameter.
  • Specified Operator op - The script is executed from the operator specified in the From Operator parameter below.

From Operator fromop - The operator whose state change will trigger the DAT to execute its script when Execute is set to Specified Operator. This operator is also the path that the script will be executed from if the Execute From parameter is set to Specified Operator.

Clamp Output clamp - The DAT is limited to 100 messages by default but with Clamp Output, this can be set to anything including unlimited.

Maximum Lines maxlines - Limits the number of messages, older messages are removed from the list first.

Clear Output clear - Deletes all lines except the heading. To clear with a python script op("opname").par.clear.pulse()

Bytes Column bytes - Outputs the raw bytes of the message in a separate column.


Parameters - Common Page

Language language - - Select how the DAT decides which script language to operate on.
  • Input input - The DAT uses the inputs script language.
  • Node node - The DAT uses it's own script language.
Edit/View Extension extension - - Select the file extension this DAT should expose to external editors.
  • dat dat - various common file extensions.
  • From Language language - pick extension from DATs script language.
  • Custom Extension custom - Specify a custom extension.
Custom Extension customext - Specifiy the custom extension.

Word Wrap wordwrap - - Enable Word Wrap for Node Display.
  • Input input - The DAT uses the inputs setting.
  • On on - Turn on Word Wrap.
  • Off off - Turn off Word Wrap.


Info CHOP Channels

Extra Information for the MIDI Event DAT can be accessed via an Info CHOP.

Common DAT Info Channels

  • num_rows - Number of rows in this DAT.
  • num_cols - Number of columns in this DAT.

Common Operator Info Channels

  • total_cooks - Number of times the operator has cooked since the process started.
  • cook_time - Duration of the last cook in milliseconds.
  • cook_frame - Frame number when this operator was last cooked relative to the component timeline.
  • cook_abs_frame - Frame number when this operator was last cooked relative to the absolute time.
  • cook_start_time - Time in milliseconds at which the operator started cooking in the frame it was cooked.
  • cook_end_time - Time in milliseconds at which the operator finished cooking in the frame it was cooked.
  • cooked_this_frame - 1 if operator was cooked this frame.
  • warnings - Number of warnings in this operator if any.
  • errors - Number of errors in this operator if any.


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