Video Encoder Alignment via Picture Data Differences
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Solution Overview
Problem
Current content delivery systems face challenges in synchronizing redundant video streams without timing information, leading to potential disruptions and difficulties in matching content streams for security and watermarking purposes, especially when encoding components have different input sources and encoding parameters.
Innovation Solution
The system generates picture data by calculating differences between successive images and uses a sliding window to align encoder components, allowing for synchronized transmission and processing of content streams without relying on detailed image analysis, and facilitates content stream matching by determining alignments and confidence values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detailed image analysis is used to align encoder components, then alignment precision is improved, but computational cost and processing time increase
Solution Approach 1:
The patent extracts only the essential timing information from video frames without performing detailed image analysis. By taking out only the necessary temporal data points needed for synchronization, the system achieves encoder alignment while avoiding the high computational cost of comprehensive image processing.
Solution Approach 2:
The system performs partial image analysis by focusing only on extracting timing information from video frames rather than analyzing complete image content. This partial action approach provides sufficient alignment precision while significantly reducing computational resources compared to full image analysis.
2Reliability
If redundant encoder components are deployed for seamless transitions, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where timing information is continuously exchanged between redundant encoder components. Each encoder receives timing data from others and adjusts its operation accordingly, enabling seamless transitions between encoders while maintaining system coordination through this continuous feedback loop.
Solution Approach 2:
The system uses timing information as an intermediary element that mediates between redundant encoder components. This timing data acts as a common reference that simplifies the coordination between multiple encoders, reducing the complexity of direct encoder-to-encoder communication and control.
3Manufacturing precision
If timing information is exchanged between encoder components, then synchronization is improved, but loss of information increases due to potential transmission errors
Solution Approach 1:
The patent applies preliminary error correction coding to timing information before transmission between encoder components. By preparing and protecting the timing data in advance through error correction mechanisms, the system ensures accurate synchronization while minimizing information loss during transmission.
4Difficulty of detecting and measuring
If content streams are matched for security purposes, then security detection is improved, but processing time increases
Solution Approach 1:
The system performs preliminary matching of content streams using timing information and metadata before detailed security analysis. This preliminary action identifies potential matches early in the processing pipeline, allowing security detection to focus only on promising candidates and significantly reducing overall processing time.
Solution Approach 2:
The content stream matching process is segmented into multiple stages: initial timing-based filtering, metadata comparison, and detailed security analysis. By dividing the matching process into these segments, the system achieves thorough security detection while minimizing total processing time through efficient staged processing.
Data Source
AI summary
A video packaging and origination service can include one or more encoder components that receive content for encoding and transmitting to requesting entities. During the operation of the encoder components, individual encoders receive input signals for encoding and determine picture data related to the generation of an encoded segment. The encoder components exchange picture data information and individual encoder components select synchronization information based processing the exchanged picture data information. The exchange of picture data and synchronization can continue throughout the streaming process.