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CueNorm Public Validator

Channel 5

Channel 5 SDH English (UK), EBU-STL

Channel 5 (Paramount UK) SDH delivery profile for new English subtitle files, EBU-STL teletext

Validate a file with this profile channel5-sdh-en-gb-ebustl@2025.04
Format
ebustl
Destination
Channel 5
Language
en-GB
Specification
reviewed
Interoperability
unverified
Last checked
2026-09-30

Validation rules

RuleSeverityParametersApplies when
MAX_TELETEXT_CELLS_PER_ROW warning max=40 always
MAX_TTI_BLOCKS_PER_SUBTITLE info max=1 always
MAX_CHARACTERS_PER_LINE warning max=35 always
MAX_LINES error max=3 always
MINIMUM_GAP error duration=0.040 s always
REQUIRED_METADATA error fields=originalProgrammeTitle originalEpisodeTitle subtitleListReference always
ALLOWED_TEXT_COLORS warning colors=#ffffff #ffff00 #00ffff #00ff00 #ff00ff always
FORBIDDEN_CHARACTERS warning characters=♪ ♫ always
STL_HEADER_VALUES error fields=codePage displayStandardCode always

Always checked

Whatever the profile's rules: how the file is read (file reading, FILE_FORMAT_MISMATCH, NO_SUBTITLES_READ), the timing of a delivery (NON_POSITIVE_DURATION, SUBTITLES_OUT_OF_ORDER, SUBTITLE_OVERLAP) and the language of the subtitles (SOURCE_LANGUAGE_MISMATCH).

Sources

  1. Paramount UK (Channel 5)

    official

    Subtitle file formats and specification, 2025-04-30

    Retrieved 2026-09-30 Open source document

  2. DPP

    official

    Technical Specification for the Delivery of Television Programmes as AS-11 Files (UK DPP File v5.0)

This is a CueNorm profile based on published specifications. It is not endorsed by Channel 5.

Resolved profile hash, recorded in every report and deliverable:

71f1613857f438ead29951072d14383c8df3a26a7e98d87a5eb0f4c42b452b42