5G Media Streaming Content Preparation Template Using NBMP Workflow
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Solution Overview
Problem
Current 5G media streaming technologies lack a defined format for content preparation templates, which is essential for processing and streaming media content effectively, as defined by 3GPP TS26.512 but not explicitly specified.
Innovation Solution
A method and device for content preparation in a 5G media streaming network that utilizes a Network Based Media Processing (NBMP) workflow description document (WDD) to determine a content preparation template (CPT), specifying the input format of an input Common Media Application Format (CMAF) track and an array of task instances for output CMAF tracks, enabling effective content preparation and streaming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a content preparation template is defined according to 3GPP TS26.512, then the processing of media streams can be set up before hosting content for streaming, but the format for the content preparation template is not defined
Solution Approach 1:
The patent applies the copying principle by creating a standardized template format that replicates the essential structure and parameters needed for content preparation. The content preparation template (CPT) copies and standardizes the workflow description document (WDD) structure from NBMP, enabling consistent reproduction of processing configurations across different content preparation scenarios without requiring custom formats for each case.
2Productivity
If a standardized content preparation template format is implemented, then content preparation and streaming efficiency is improved, but the device complexity increases due to format determination and parsing requirements
Solution Approach 1:
The patent applies universality by designing a content preparation template format that serves multiple functions: it defines input media stream characteristics, specifies processing parameters, and outlines output content requirements all in a single standardized structure. The WDD-based CPT format can universally handle different types of media content and processing scenarios, reducing the need for multiple specialized template formats and thereby managing complexity through consolidation rather than proliferation of formats.
Data Source
AI summary
Systems, devices, and methods for media processing and streaming, including receiving content to be prepared for a 5G media streaming (5GMS) corresponding to an input Common Media Application Format (CMAF) track and a set of output CMAF tracks; determining a content preparation template (CPT), wherein the CPT includes a Network Based Media Processing (NBMP) workflow description document (WDD) which specifies an input format of the input CMAF track, and an array of task instances corresponding to the set of output CMAF tracks; preparing the content according to the CPT; and streaming the prepared content over the 5GMS network to a media streaming client.