Watermark Preprocessing

In order to apply watermark to a source video, a preprocessing operation is required in the content encoding process. A watermark value (0 and 1) is inserted in the original uncompressed video frame to generate output as two sets of encoded video. (A/B variants)

The inserted watermark value is encrypted using a secret key unique to each content service provider, and can not be extracted from the outside arbitrarily.

graph TD;
    A[Source frame] --> B(Watermark Preprocessor)
    B --> C["Two set of watermarked<br>frame (0 and 1)"]
    subgraph PallyCon forensic watermarking
    D(Watermark 0 and 1) -->|Secret key| B

The watermark preprocessing can be done using CLI preprocessor, preprocessing library or SaaS packaging service depending on the customer’s choice.

CLI Preprocessor Guide

PallyCon CLI Preprocessor is a Command Line Interface (CLI) based tool that inserts a watermark to the source mp4 video. This document explains how to install and use the CLI Preprocessor.

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Preprocessor Library Guide

PallyCon Preprocessor Library is a watermark preprocessor implemented as a C ++ library so that it can be ported to an encoding solution. This document explains how to use the Preprocessor Library.

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Packaging Service Guide

PallyCon Forensic Watermarking Service provides cloud-based watermark preprocessing and packaging service. This document explains how to use the service.

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Packaging API Guide

The preprocessing and packaging for forensic watermarking can also be done via HTTP-based APIs. This document describes storage management and packaging operations APIs for packaging processing.

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