Content Delivery Control via Standardized Transcoding Metadata
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Solution Overview
Problem
Current content delivery systems lack standardization in transcoding conditions across different CDNs, making it difficult to control and manage transcoding processes, especially for user-generated content, and there is a need for a standardized upload interface to support flexible transcoding and logging capabilities.
Innovation Solution
A content delivery control apparatus and method that generates a metadata file with definition information for transcoding, including access information, to control the transcoding process based on stored or requested data, ensuring compatibility with MPEG-DASH standards and supporting flexible transcoding and logging within CDNs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If transcoding conditions are customized for each CDN, then transcoding flexibility is improved, but system complexity and management difficulty increase
Solution Approach 1:
The patent applies universality by creating a standardized metadata schema that can be used across multiple CDNs and transcoding scenarios. The TranscodeDirective element and its attributes provide a universal interface that works across different CDN providers, eliminating the need for custom solutions for each CDN while maintaining flexibility through configurable parameters like transcodable, upScalable, and processingLimit.
Solution Approach 2:
The patent uses parameter changes by defining configurable attributes within the TranscodeDirective element that allow dynamic adjustment of transcoding behavior. Parameters such as transcodable (boolean), upScalable (boolean), processingLimit (integer), and resolution attribute enable flexible control of transcoding processes without changing the underlying system structure, thus maintaining simplicity while achieving adaptability.
2Ease of operation
If transcoding control is centralized, then management ease is improved, but delivery speed may deteriorate
Solution Approach 1:
The patent applies preliminary action by pre-defining transcoding conditions and parameters in the metadata file before content delivery. The TranscodeDirective element contains all necessary instructions (transcodable, upScalable, processingLimit, resolution) that are prepared in advance, allowing edge servers to execute transcoding operations immediately without requiring real-time centralized control, thus maintaining both management ease and delivery speed.
3Manufacturing precision
If upscaling processing is permitted, then content quality is improved, but processing time and energy consumption increase
Solution Approach 1:
The patent applies partial action by allowing upscaling processing to be selectively enabled or disabled through the upScalable attribute in TranscodeDirective. Additionally, the processingLimit attribute allows setting maximum processing time or resource constraints, enabling partial execution of upscaling operations when full processing is not necessary, thus balancing content quality improvement with processing time and energy consumption.
Data Source
AI summary
The present disclosure relates to a content delivery control apparatus, a content delivery control method, a program, and a content delivery system capable of achieving commonality of conditions associated with transcoding at the time of content delivery in different CDNs and supporting a standard upload interface.In a case in which definition information is stored in a metadata file, transcoding of an original segment is controlled on the basis of the definition information. Meanwhile, in a case in which access information for accessing the definition information is stored in the metadata file, then the definition information is requested on the basis of the access information, and the transcoding of the original segment is controlled on the basis of the definition information received in response to the request. The present disclosure is applicable to a content delivery system that delivers a content using MPEG-DASH.