DASH CMAF Event Structures for Addressable Resource Index Delivery
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Solution Overview
Problem
Existing media streaming technologies, such as DASH and CMAF, face challenges in efficiently delivering Addressable Resource Index (ARI) information, leading to increased signaling overhead and additional HTTP requests.
Innovation Solution
The proposed solution involves carrying ARI information using DASH/CMAF events, such as inband events or MPD events, rather than relying on a dedicated metadata track, thereby reducing the need for extra HTTP requests and enhancing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ARI information is delivered using a dedicated metadata track, then the information can be carried reliably, but the signaling overhead increases and additional HTTP requests are required
Solution Approach 1:
The patent merges ARI information delivery with existing DASH/CMAF event structures (inband events or MPD events). Instead of using a separate dedicated metadata track, the ARI information is combined with and transmitted through the existing event signaling mechanism that is already part of the media stream, thereby eliminating the need for additional HTTP requests and reducing signaling overhead while maintaining reliable delivery
Solution Approach 2:
The existing DASH/CMAF event structure is made multi-functional by enabling it to carry both its original event signaling purpose and the additional ARI information. This universal approach allows the same signaling infrastructure to serve multiple purposes, eliminating the need for dedicated separate channels for ARI delivery
2Reliability
If ARI information is delivered using a dedicated metadata track, then the information can be carried reliably, but additional HTTP requests are required
Solution Approach 1:
The patent combines ARI information with existing media stream events, allowing ARI data to be delivered in-band with the media content rather than through separate HTTP requests. This merging eliminates additional network round trips and reduces the time loss associated with multiple HTTP transactions while ensuring reliable delivery through the established event processing pipeline
3Device complexity
If ARI information is carried using existing event structures, then signaling overhead is reduced, but flexibility in carrying ARI information may be limited
Solution Approach 1:
The patent enhances the universality of DASH/CMAF event structures by designing them to accommodate ARI information while maintaining their existing functionality. The event structures are made adaptable to carry various types of information (original events plus ARI data) without losing flexibility, allowing the same framework to serve multiple purposes across different scenarios
Solution Approach 2:
The solution introduces dynamic capabilities to the event structures, allowing them to adaptively carry ARI information based on the specific media stream requirements. The event processing mechanism can dynamically adjust to include ARI data when needed while maintaining the original event handling behavior, providing flexibility without increasing overhead
Data Source
AI summary
Methods, apparatus, and computer readable storage medium for processing a media stream. The media stream may follow a DASH or CMAF standard. The method may include processing an Addressable Resource Index (ARI) event associated with the 5G media stream, wherein the ARI event comprises at least one of: an inband event transmitted along with a first media slice in a content set, the content set comprising one or more media slices; or a Media Presentation description (MPD) event; and the ARI event carries configuration information of the one or more media slices in the content set.