3.4. Task Page

Task page contains full information regarding a specific media file validation task. The page includes the information block with task configuration, test results diagram, infographics (bitrate, audio track loudness, video track thumbnails), and journal.

You can navigate to the task page from the Dashboard. To do this, click on o a task’s name or URI in the Running Tasks, Completed Tasks, or Incomplete Tasks blocks—or on the result in the Completed Tasks and Incomplete Tasks blocks.

3.4.1. Information Block

Located at the top of the page is a section with the task configuration and diagram showing the results of the performed tests.

The information block includes:

• Task Name;

• URI (location of the media file being validated);

• Result (Status);

• Priority;

• Start and end date and time of validation task (YYYY-MM-DD hh:mm:ss);

• Template;

• Probe and its version;

• Probe Status;

• Service Name;

• Buttons:

  • — when clicked, the task will be canceled and placed in the Incomplete Tasks block with its result set as Canceled. The button is available while the task has a Running status,

  • — when clicked, a window will open with the main parameters of the media file: video, audio, and container.

  

The diagram shows the distribution of test-related records from the journal in %.

3.4.2. PID Bitrates

This block displays the media file bitrate graph: A visual representation of how the amount of data changes for audio/video tracks and metadata every second.

The graph presents info in bits per second (b/s). Abbreviations are used for better comprehension: kb/s, Mb/s, Gb/s.

Above the graph, there is a legend indicating all tracks and metadata included in the media file. A single click on a track’s description will hide it from the graph; clicking again will show it back. To hide all elements, use the Clear graph button; to show them again, use the Display all PIDs button.

Note

On the task page, all graphs are displayed as three-minute intervals. The following navigation buttons are available for moving through the graphs:

• +1m/−1m — to move forward or backward by one minute;

• +3m/−3m — to move forward or backward by three minutes at a time.

3.4.3. Audio Loudness

This block displays loudness levels in accordance with EBU R 128:

• Momentary Loudness — loudness value measured using a sliding window with an integration time of 400 ms. The unit of measurement is LUFS.

• Short-Term Loudness — loudness value measured using a sliding window with an integration time of 3000 ms without relative gating. The unit of measurement is LUFS.

• Programme Loudness — the average (integrated) loudness over the entire duration of the program. The unit of measurement is LUFS.

The loudness graphs include a legend that lets you manage the displayed data.

Note

In accordance with ITU-R BS.1770, Boro VoD measures loudness levels for each audio track separately.

For a multi-channel audio track (where the audio track contains multiple channels, for example, a 5.1 layout with 6 channels: left (L), right (R), center (C), surround left (SL), surround right (SR), and a subwoofer (LFE)), tracks are summed up with each channel’s weighting coefficient in mind—except for the LFE channel, it is not included in the calculation.

The value of absolute silence is −∞. In Boro VoD, values below −120 LUFS are treated as −120 LUFS for easier data visualization on graphs. This threshold enables detection of both silence (−70 LUFS) and the presence of data with lower loudness levels.

3.4.4. Thumbnails

This block displays thumbnails made from video track frames. The thumbnail capture frequency can be configured in the current verification template. Changing the thumbnail capture frequency is described in the Template Configuration section.

Additionally, in the Video Freeze section, you can configure the interval between captures during error detection.

During capture, thumbnails are scaled to 128 pixels in width (the height in pixels depends on the aspect ratio of the original video). In addition, the block provides thumbnail display scaling options: 100%, 75%, 50%, and 25%.

3.4.5. Journal

Each media file is validated by a probe against a predefined test template. A template includes a list of tests and compliance conditions. The Journal block contains a table with the results for each finished test. The following results are possible:

• Passed — the test is considered as complete, the validated parameter meets the template conditions, and no errors were detected;

• Warning — the result for Warning-level tests, the validated parameter does not meet the conditions or errors were detected;

• Error — the result for Error-level tests, the validated parameter does not meet the conditions or errors were detected;

• Fatal — the result for Fatal-level tests, the validated parameter does not meet the conditions or critical errors were detected.

Tests with the Passed result have a single entry for a video or audio track in the journal table.

For other results (Warning, Error, and Fatal), the number of entries in the journal table will equal the number of detected errors.

Above the journal table, there are filters that sort entries by result: Passed, Warning, Error and/or Fatal—as well as by specific tests. Tests are grouped into corresponding categories (File summary, Container validation, Video parameters, Video quality, Audio parameters, Audio quality). The order and grouping are identical to those present on the Templates page.

To use filters, select the necessary checkboxes and click .

To select all test groups or deselect them, use the Select all groups or Clear all groups buttons.

Table columns:

• № — sequential number of messages in the journal;

• Timestamp — time value (in hh:mm:ss format) of the media file when the system detected an error, or made a decision regarding the test result. Clicking on the timestamp will reposition the bitrate, audio track loudness, and video track thumbnails graphs to the selected time value;

• Severity — indicator of the consequences that a test failure may lead to. You can specify the severity levels when configuring a template — these will spread on all tests. If the validated parameter meets the template conditions and no errors were detected, the Severity column will display the Passed status; otherwise, it will display the corresponding severity level from the template (Warning, Error, Fatal);

• Group — all tests are grouped into corresponding categories (File summary, Container validation, Video parameters, Video quality, Audio parameters, Audio quality);

• Test — name of the specific test scenario;

• Description — contains a message with the actual and expected values. When validating media files with multiple tracks, if errors are detected, each track will have a separate journal entry, with the number of the problematic track specified.

For each journal entry, you can: display the journal info in JSON/text format, copy, save (as a JSON or text file).

A single page displays 25 entries. Use the buttons in the lower-left corner to navigate between pages. On all pages, the first entry in the journal is the Media file information entry.