Scalable Video Coding Encoder Layer Control
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Solution Overview
Problem
Existing digital video systems require separate encoders for each recipient to provide different video content, which is expensive in terms of processing power and bandwidth, and lack efficient mechanisms for controlling video signals.
Innovation Solution
The implementation of scalable video coding (SVC) systems that encode a base content sequence and one or more added content sequences into an SVC stream with a basic layer and enhanced layers, allowing for selective display of enhanced layers at the destination, thereby controlling the video content provided to recipients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate video encoders are provided for each recipient to deliver different video content, then content customization for individual recipients is achieved, but processing power requirements and bandwidth costs increase prohibitively
Solution Approach 1:
The video stream is segmented into multiple layers (base layer and enhancement layers) that can be selectively transmitted. Instead of creating separate full video streams for each recipient, the system divides a single encoded stream into hierarchical components that can be recombined at the receiver based on individual needs, reducing encoder requirements while maintaining content customization capability
Solution Approach 2:
A single video encoder is designed to produce a universal SVC stream that can serve multiple recipients with different requirements. The encoded stream contains multiple layers that can be selectively used to create customized video content for different users, allowing one encoder to perform the function of multiple dedicated encoders
2Adaptability or versatility
If separate video encoders are provided for each recipient, then individual video content delivery is achieved, but bandwidth consumption increases prohibitively
Solution Approach 1:
Multiple individual video streams that would traditionally be transmitted separately are merged into a single SVC stream. The combined stream contains all necessary layers to serve multiple recipients, eliminating redundant data transmission and reducing overall bandwidth consumption while maintaining the ability to deliver customized content to each recipient
3Ease of operation
If multiple encoders are used to provide different video signals to different recipients, then video content control is achieved, but system complexity and cost increase
Solution Approach 1:
A single encoder is designed with multi-functionality to perform the role of multiple dedicated encoders. The encoder produces an SVC stream with configurable layers that can be selectively transmitted to different recipients, providing video content control capabilities without requiring separate encoder devices for each recipient, thus reducing system complexity
Data Source
AI summary
Systems, methods, and media for providing selectable video using scalable video coding are provided. In some embodiments, systems for providing selectable video using scalable video coding are provided, the systems comprising: a scalable video coding capable encoder that receives a base content sequence and at least one added content sequence that has different content from the base content stream and that produces at least one SVC stream that includes a basic layer, that corresponds to the base content sequence, and at least one enhanced layer, that corresponds to content in the at least one added content sequence; and a digital processing device that controls whether the at least one enhanced layer in the SVC stream is displayed at a destination for the SVC stream.