Scout for AntMedia Server

Scout is a commercial plugin for AntMedia Server that injects CMSD-Static (CTA-5006 — Common Media Server Data) metadata into HTTP responses for HLS and DASH streams, with optional Media Quality Assessment (MQA) and telemetry integration.

When a client requests an HLS or DASH resource from an application that has Scout enabled, the plugin attaches standardised CMSD keys describing the content — bitrate, object type, streaming format, stream type, and optionally duration — to the response in real time, with no re-encoding and no interruption to the stream.

Features

  • Five CMSD-Static keys: d (duration in ms), br (encoded bitrate in kbps), ot (object type), sf (streaming format), st (stream type).

  • HLS support: .m3u8 manifests and .ts segments.

  • DASH support: .mpd manifests and .m4s segments.

  • Flexible delivery: HTTP response header (CMSD-Static:), manifest body injection (#EXT-X-CMSD-STATIC: tag for HLS or <SupplementalProperty> for DASH), or both.

  • Configurable scope: inject on manifests only, segments only, or both.

  • Per-application configuration — different delivery and scope settings per AntMedia application.

  • Configuration hot-reload without restarting AntMedia Server.

  • Web-based management UI for installing the filter per application and editing settings.

  • MQA (Media Quality Assessment) — per-stream PSNR, SSIM, and optional VMAF scores injected as a CMSD-MQA: response header on segment requests (opt-in, zero overhead when disabled).

  • Prometheus metrics export — per-stream quality metrics available for scraping (Standard license and higher).

  • MQA REST score ingest — accept quality scores pushed by an external encoder or quality-assessment tool (Standard license and higher).

  • Quality alerting — webhook alerts when VMAF drops below a configurable threshold (Enterprise license).

License tiers

Scout is available in three tiers. See License for details.

Tier

Features included

Standard

CMSD-Static injection, MQA on-device metrics, web UI, REST API, Prometheus export, MQA REST ingest.

Integration

All Standard features.

Enterprise

All Integration features, plus quality alerting.

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