Getting Started

The CamDirector® MultiShot module (AV-CD-MSHOT1) allows automatic switching between multiple camera angles using predefined presets. This is ideal for lecture capture and streaming environments.

• Ensure the CamDirector® software is installed and updated to the latest version.
• Connect all PTZ cameras via IP and confirm each camera has unique, reachable IP settings within the same subnet.
• Verify that the system supports multicast and latency is kept below 250ms per camera feed.
• Assign presets to all cameras before enabling MultiShot mode. Each camera must have at least one preset stored.
• Use only the CamDirector web interface or supported API calls to activate the MultiShot switching logic.

TABLE OF CONTENTS

• Getting Started
• Overview of MultiShot Mode
  • Supported Hardware
  • Preset Configuration
  • Timing and Transition Settings
• Web Interface Configuration
  • Example Settings Panel
• REST API Integration
  • Basic API Command
  • Use Case: OBS Scene Switching
• Integration with TeacherTracker
  • Zone-Triggered Switching
• Limitations and Requirements
  • Known Issues
• Troubleshooting

Overview of MultiShot Mode

The MultiShot mode enables CamDirector to automatically cut or fade between up to four different camera presets based on configured timing. This creates a dynamic multi-angle production using fixed PTZ camera locations.

Supported Hardware

• Up to 4 Avonic PTZ cameras connected via IP
• Optional: CamDirector TeacherTracker for advanced trigger logic

Preset Configuration

Each camera can store multiple presets. MultiShot mode requires one preset per camera to be assigned to the switching sequence.

• Presets must be configured manually before activation.
• Each camera must be uniquely identifiable (Cam1, Cam2, etc.).
• Switching order is defined by preset input index (1–4).

Timing and Transition Settings

Each preset switch can be customized using:

• Delay: Time before switching to the next preset.
• Cut/Fade: Transition type between shots.
• Looping: Whether the sequence repeats automatically.

Web Interface Configuration

Access the MultiShot settings via the CamDirector GUI:

• Navigate to http://<camdirector_ip>/camdirector
• Enable MultiShot under the ‘Modes’ tab
• Assign camera inputs and presets in the MultiShot settings panel

Example Settings Panel

This interface allows you to define:

• Input number (camera index)
• Preset number to recall
• Duration of shot
• Transition type

REST API Integration

The MultiShot feature can be externally triggered or modified using HTTP GET requests. This allows for seamless integration with production tools like OBS.

Basic API Command

http://<ip_address>/camdirector/ms/set?input=1

Where input corresponds to the preset slot (1–4). Optional parameters:

• cut=true or cut=false
• delay=5000 (milliseconds before next switch)

Use Case: OBS Scene Switching

Combine OBS WebSocket with CamDirector API calls to align scenes and presets. Use delay settings to time transitions smoothly.

Integration with TeacherTracker

MultiShot can be used alongside the TeacherTracker module to enhance the switching logic:

• Trigger MultiShot when the teacher is detected in a predefined zone
• Pause switching during board writing or inactivity
• Resume when the teacher returns to the podium

Zone-Triggered Switching

TeacherTracker provides trigger conditions which can start or stop the MultiShot sequence dynamically based on teacher movement.

Limitations and Requirements

• Maximum latency per camera input: 250ms
• MultiShot supports only IP-based camera control
• VISCA is not supported for switching presets
• Only 4 inputs are allowed in the MultiShot loop

Known Issues

• Switching delays below 2000ms may cause overlapping transitions
• Cut/fade timing may vary depending on network jitter

Troubleshooting

• Ensure all cameras respond to HTTP preset recall before enabling MultiShot
• Use the diagnostic log in CamDirector GUI to confirm switching triggers
• When API commands fail, check firewall settings and IP access lists

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