---
title: "Acceptance checklist"
version: "1.0"
permalink: "https://docs.typo3.org/permalink/mfd/adaptive-video:acceptance-checklist@1.0"
source: "AcceptanceChecklist/Index.rst"
rendered: "2026-11-03T08:37:43+00:00"
---

# Acceptance checklist {#acceptance-checklist}

Manual checks before enabling delivery in an environment. Automated tests
cover the logic; this list covers real ffmpeg output, browsers and
operation.

Use `vendor/bin/typo3 adaptive-video:status <fileUid>` to look up the
version and playlist URL of a test video.

## Encoding {#encoding}

Run a scan and the worker with `-vv` and check each case with
`adaptive-video:status <fileUid>`.

-   Landscape video (e.g. 1920×1080): `ready`, renditions up to the source
    size.
-   Portrait video (e.g. 1080×1920): `ready`, player shows it upright and not
    stretched.
-   Video with rotation metadata (e.g. recorded on a phone): orientation as in
    the original.
-   Video without audio track: `ready`, plays without errors.
-   60 fps source: output limited to the profile frame rate (30 fps by
    default).
-   Source below 360p: one rendition in the source size.
-   Video below `minimumDuration`: `skipped`, original is delivered.
-   Defective or non-video file with a supported extension: `failed` with a
    readable message.
-   Working directory is empty after success and after failure.

## Delivery {#delivery}

On a page with a ready video, page cache flushed:

-   Markup contains `data-adaptive-video-src` and the original as `<source>`.
-   Chrome, Firefox, Edge: stream plays via hls.js (requests to `master.m3u8`
    and `.m4s` in the network tab).
-   Safari macOS and iOS: stream plays natively.
-   No CSP violations in the browser console.
-   Quality adapts when throttling the network in the developer tools.
-   With `preload` `none` or `metadata`, no segments are loaded before
    playing.
-   Autoplay videos start muted, without loading the original first.
-   Poster from file metadata is shown.
-   Without JavaScript the original plays.
-   If the playlist is not reachable (e.g. blocked in the developer tools),
    the original plays.
-   Files without ready version, short videos and unsupported formats are
    delivered unchanged.

## Changes and operation {#changes-and-operation}

-   New reference saved in the backend: the video is queued right away
    (`adaptive-video:status`), the page shows the stream after encoding
    without flushing the cache manually.
-   Copying or translating a content element with an unprocessed video queues
    it right away.
-   Reference created outside the backend (e.g. import): the next scan queues
    the video.
-   Replacing the file: the page shows the original right away, the stream
    again after the next scan and encoding.
-   `deliveryEnabled = 0`: all pages deliver the originals after flushing the
    page cache.
-   Site set setting `adaptiveVideo.enabled = false`: the site delivers the
    originals.
-   `processingEnabled = 0`: the scan queues nothing, existing streams are
    still delivered.
-   Worker restart during an encoding: the version is processed again after
    `redeliverTimeout`.
-   `adaptive-video:status` shows running, failed and (with `-v`) skipped
    versions.
-   Deleting a failed version and scanning again queues the file again.
-   Database and artifact directory copied to another environment: streams
    play there.