Video Server Content Validation via MPEG Private Packet GUIDs
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Solution Overview
Problem
Content validation in video streaming networks is inadequate, leading to issues such as incorrect data being sent to subscribers due to disk failures, packet corruption, and improper streaming, which existing checksum methods and content crawlers fail to address promptly.
Innovation Solution
The integration of Globally Unique Identifiers (GUIDs) into MPEG private packets for content-based validation and session identifiers for session-based validation, allowing for real-time detection and prevention of corruption and improper streaming, using a combination of content and session identifiers inserted at regular or irregular intervals within the MPEG stream.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If content crawlers and checksum methods are used for content validation, then content corruption can be detected, but detection is delayed by many hours creating a protection gap
Solution Approach 1:
The patent embeds content identifiers and session identifiers into the content stream itself during the content preparation phase. This preliminary action enables immediate validation at the point of use rather than requiring delayed batch processing, thus eliminating the protection gap while maintaining validation reliability
Solution Approach 2:
The system implements continuous feedback by validating content identifiers and session identifiers against expected values during content delivery. This real-time feedback mechanism immediately detects corruption or mismatches without delay, resolving the contradiction between detection speed and validation reliability
2Reliability
If comprehensive content validation is implemented to detect all corruption vectors, then content integrity is improved, but system complexity increases
Solution Approach 1:
The patent divides the validation system into two independent segments: content identifier validation (comparing embedded identifiers against content database) and session identifier validation (comparing session identifiers against active sessions). This segmentation allows comprehensive validation without requiring a monolithic complex system, as each segment handles a specific validation aspect independently
Solution Approach 2:
The embedded identifiers serve multiple functions: they act as content fingerprints for integrity verification, session tokens for authorization, and traceability markers for auditing. This multi-functionality reduces the need for separate validation mechanisms, thereby improving content integrity without proportionally increasing system complexity
3Reliability
If real-time content validation is implemented to eliminate detection delays, then content protection is improved, but computing resource consumption increases
Solution Approach 1:
The patent extracts validation-critical information (content identifiers and session identifiers) directly from the content stream itself during delivery. This extraction approach enables real-time validation using only the embedded identifiers without requiring intensive computing resources for full content analysis or complex validation algorithms, thus achieving improved protection with modest resource consumption
Data Source
AI summary
A video server inserts unique content identifiers into private packets of a digital program stream file as a result of loading the file onto a video server.