Medialooks Close Caption Library PluginMedialooks Close Caption Library Plugin

MedialooksAudio & Video Tools.NETActiveX / COM ComponentWindows DLL
Version v2.11.x (Dec 3, 2025)

Add closed captions and ad triggers to playout workflows.

  • Adds closed caption support to broadcast playout applications.
  • Supports CEA-608 and CEA-708 caption standards.
  • Handles SCTE-35 and SCTE-104 ad insertion triggers.
Medialooks logo

Prices from:

Loading...
Available individuallyOur Price
Medialooks Close Caption Library PluginLoading

Trial version available Contact us for a free trial

Medialooks Close Caption Library Plugin
Medialooks Closed Captions Library Plugin adds caption handling and dynamic ad insertion support to broadcast playout solutions built with MFormat SDK and MPlatform SDK. The library helps applications display synchronized caption text, process industry caption standards, capture or output caption data, and work with SCTE markers for ad insertion workflows.

Closed Caption Display

The library enables applications to show closed captions on video screens and visual displays. Developers can provide viewers with text for spoken dialogue, sound effects, and other significant content while keeping caption presentation synchronized with the video image.

Viewer-Controlled Captions

Applications can support closed captions that viewers can turn on or off. This lets developers build broadcast and playout workflows where caption data remains available in the signal while the visible display can depend on viewer or system preferences.

CEA-608 Caption Support

The library supports CEA-608 captions for National Television System Committee (NTSC) workflows. Developers can use this standard when working with caption data intended for compatible analog and digital television delivery environments.

CEA-708 Caption Support

The library supports CEA-708 captions for digital television workflows. This allows applications to handle digital caption data and multilingual caption scenarios where supported by the selected broadcast format, signal path, and playback workflow.

Analog And Digital Caption Handling

Developers can work with caption data across analog and digital television contexts. The library supports workflows where caption information must be played out to compatible hardware or captured from supported input paths.

Hardware Playout And Capture

The library supports caption playout and capture through compatible hardware connections, including composite and Serial Digital Interface (SDI) workflows. This helps developers connect caption processing with broadcast hardware used for input and output.

Line 21 Caption Workflows

Applications can work with Line 21 caption data in supported workflows. This enables developers to process caption information carried in traditional analog television environments and integrate it into broader playout or capture systems.

SCTE-35 Marker Support

The library uses metadata from SCTE-35 markers to support dynamic ad insertion. Developers can build playout workflows that detect ad signaling metadata and coordinate content monetization logic within Medialooks SDK-based applications.

SCTE-104 Trigger Support

The library supports SCTE-104 triggers for Serial Digital Interface (SDI) signal workflows. This helps applications manage ad insertion signaling in broadcast environments where triggers travel through SDI-based infrastructure.

Medialooks SDK Integration

The library adds closed caption and ad insertion functionality to Medialooks SDK-based broadcast systems. Developers can integrate caption standards, hardware caption workflows, and SCTE signaling into custom playout applications without building those capabilities from scratch.

Product Compatibility

Review the details below to ensure this product is supported within your environment.

Component Type

  • .NET
  • ActiveX / COM Component
  • Windows DLL

.NET Version

  • .NET 4.8 or earlier

.NET Platform

  • .NET Class

IDE Support

  • C++Builder
  • Delphi
  • RAD Studio
  • Visual Studio