MPD Validator

MPD Validator analyzes MPEG-DASH manifests (MPD) to ensure they are well-formed and conform to the chosen standards. It is designed for streaming engineers, QA teams, and content operators who integrate manifest validation into packaging, ingest pipelines, CI workflows, or pre-deployment checks. Inputs can be a remote MPD URL or a local MPD file; users can select strict or lenient validation modes and receive a structured report that highlights errors, timing issues, and URL resolution problems.
Conceptually, the tool parses the MPD XML, resolves BaseURL references, and validates timing and segment references across Periods and AdaptationSets. It checks SegmentTemplate or SegmentTimeline consistency, Representation attributes, bandwidth ranges, codecs, and mime types, and ensures initialization segments and media segments are addressed coherently. Optional checks cover DRM ContentProtection, profiles, and periodic manifest updates.
Outputs include a detailed error list with severities, a conformance score, and an exportable report in JSON or XML. The validator provides exact locations in the MPD using path-like selectors, aiding rapid remediation by developers and QA teams. This precise feedback improves reliability of live and VOD streams and reduces playback failures caused by manifest issues.
Common use cases include pre-publish validation during packaging, nightly QA for content libraries, CI integration for automated checks, and troubleshooting playback issues by isolating manifest-related causes. The tool is designed to integrate into existing pipelines and provide actionable guidance to shorten release cycles while maintaining playback readiness.