For single files that contain duplicated scenes with slight differences, such as text on the video or blurred scenes, you can use the Deep Analysis feature to compare the file and create separate clips that can be used in a new version designed for a different audience. This process is called Scene Matching.
For example, if you have a successfully ingested file that contains texted or textless elements at the end of it, you can split this file into separate components (texted and textless) that will be used by the Deep Analysis Scene Matching algorithm to be compared. Those components must be manually created in the Markers page.
To perform a Scene Matching scan:
Open the title that contains the video file on which you want to run the scan.
Navigate to the Deep Analysis tab and click New comparison. The File comparison modal is displayed.
In the Comparison name field, enter a relevant name for your new comparison scan.
Each name is unique.
Under Comparison type, select Scene matching.
Under Video files available on title, select the file you want to compare by clicking Add to comparison list. The file is included in the Comparison list section.
Specify which of the two file versions is the source to compare from, by selecting the Master toggle.
For each file version, select the Essence type.
After the file was successfully ingested and after the Deep Analysis Scan (AWS Rekognition) you have to manually set the Texted or the Textless essences by setting the IN and OUT points and create a marker of type essence.
Click Start. The comparison process begins, and is displayed on the Deep Analysis tab.
Once the comparison process is completed, the scan results are displayed.
Click on the comparison analysis name to review the results.
In the Comparison results components section, the files that were compared are displayed.
In the Identified variants section, the identified clips are displayed.
In the editor, the master and version files are displayed side by side which allows you to double check the comparison results.
In the Variant editor section, you can adjust the marker settings per your needs.
In addition, the timeline is synced so you can review the player for both the master and the version file.
If you agree with the results, select the Approve toggle for the clips that meet your needs.
If you do not agree with the results, deselect the Approve toggle.
When you are satisfied with your choices, click Generate Composition Playlist. The Generate Composition Playlist modal is displayed.
In the Workflow name field, enter a relevant name for your workflow.
Under MediaWarp profile, select the profile you want to use.
You must have a previously configured MediaWarp profile so you can create the IMF.
Select the essence(s) you want to use to generate the Composition Playlist.
Enter the Composition Playlist Name and S3 Path for each essence selected.
You can also select Suggest to automatically populate the S3 Path field.
Click Generate Composition Playlist. The Composition Playlist generation process begins.
The Composition Playlist generation process is running in the background. If you want to see the progress, navigate to the Workflows menu and click on it.
Once the process is completed, the results are displayed on the title, under the Composition Playlists tab.