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Recording and playback of video with tracking

Record video

Recording to a video file can be done via the

  • the PX - Record and playback control panel

    • Creates a temporary File output routing while recording

  • OR the Routing panel

    • Needs a dedicated File output routing

What is being recorded?

Video

We record the output source of the routed output (by default set to Engine).

If there is no level launched, an empty file is being recorded.

To record the input, pass it through the LVL_VideoPassThrough level.

Screenshot 2025-10-23 at 14.04.40.png

Tracking (optional)

If enabled, we record the tracking data of the active camera.

For compatibility reasons is the tracking information embedded inside the audio channel. This data sounds like loud noise when listened to in a video player.

Only want to record tracking? Check out Recording and playback of tracking data

Recording format

Files are recorded as .mkv using the h264 codec.

Learn more about the file output format

Recording options

Record

  1. Adds a timestamp to the file name

  2. Starts writing to that file

Pause

  • Pauses the recording

  • Clicking "Record" again will continue writing to the same file

Stop

  1. Stops the recording

  2. Finalizes the file

Via the control panel

Screenshot 2025-10-23 at 15.49.56.png

Open control panel

  1. Click the "Open Control panel" button in the Launch panel

  2. Select the "PX - Record and playback" control panel

  3. Click "Launch LIVE"

Start recording

On the left side

  1. Use the "Select machine" dropdown to select the one you want to record from

  2. Use the "Select output" dropdown to select which output to record

    • A file name suggestion is created based on machine and output name

  3. Optional: Change the file name base

  4. Optional: Select "Embed tracking"

    • Embeds the tracking data of the active camera into the audio channel

  5. Click "Record" to start recording

    • Creates a temporary File output routing using the same settings as the selected output

    • Adds a timestamp to the file path

    • Starts writing into that file

  6. Click "Stop" to stop recording

    • Finalizes the recorded file

Clicking "Pause" allows you to temporarily pause the recording and continue writing to the same file when clicking "Record" again.

Via the routing panel

Screenshot 2025-10-23 at 14.01.13.png

Create output routing

In the Routing panel

  1. Add a Media output to the machine you want to record

  2. Select File as Output

  3. Choose the output path for the recorded file

    • If the routed machine is the local one, you can pick a folder using the folder icon

  4. Optional: Change the file name base

  5. Optional: Select "Embed tracking"

    1. Embeds the tracking data of the active camera into the selected audio channel

  6. Optional: Change output format or color profile

Start recording

  1. Click "Record" to start recording

  2. Click "Stop" to stop recording

  3. A notification is shown allowing you to

    • Open the recorded file in your default video player

    • Open the folder in the file explorer

      Screenshot 2025-10-23 at 15.33.59.png

Playback video

Playing back files or image sequences can be done via

  • the PX - Record and playback control panel

  • OR the Routing panel

Playback format

A variety of file and image sequence formats are supported.

Learn more about the file input formats

Playback options

Loop

Enables looping of the video (enabled by default)

Play

Plays the video

Pause

Pauses the video

Back to start

Moves the playhead back to the beginning of the video

Via the control panel

Screenshot 2025-10-23 at 15.50.10.png

Open control panel

  1. Click the "Open Control panel" button in the Launch panel

  2. Select the "PX - Record and playback" control panel

  3. Click "Edit"

    • OR "Launch LIVE" if file names have already been specified

Specify file names

  1. Optional: Right click "Source folder" and update the Text to change its default value

    Screenshot 2025-10-23 at 16.12.49.png


  2. Right click the "Select file" dropdown

  3. Click on "OPTIONS"

    Screenshot 2025-10-23 at 16.06.56.png


  4. Add the file names (including extensions) and display names as options

    • The folder path is set in the

      Screenshot 2025-10-23 at 16.08.04.png


  5. Press Ctrl+S to save the Control panel

Start configuring

On the right side

  1. Use the "Select machine" dropdown to select the one to configure

  2. Use the "Select input" dropdown to select which input to change

  3. Optional: Select "Extract tracking"

    • Extracts the tracking data from the audio channel

  4. Optional: Change the Source folder

  5. Select a file from the "Select file" dropdown

    • Sets that input route to file

    • Sets the input path using the above selection

  6. Click "Play" if not already playing

Via the routing panel

Screenshot 2025-10-23 at 16.23.56.png

Add input routing

In the Routing panel

  1. Add a Camera system or Media input on the dedicated machine

  2. Select File as Input

  3. Choose the input path for the file to be played

    • If the routed machine is the local one, you can pick a file using the file icon

    • The "Input file" dropdown lists all supported file formats

  4. Optional: Change the Input file using the "Input file" dropdown

  5. Optional: Select "Extract tracking"

    1. Extracts the tracking data from the selected audio channel

  6. Optional: Change output format or color profile

  7. Click "Play" if not already playing