Random Access Information Segmentation for Live Streaming
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Solution Overview
Problem
Conventional technologies do not allow users to access a specific time point of real-time streaming content before the entire content file is received, as the access points for live content streaming are located at the end of the MP4 file.
Innovation Solution
The method involves storing random access information for each content segment separately and notifying clients of their locations, allowing users to access specific time points even before the content is completely downloaded by attaching this information to the content file after transmission is complete.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If random access information is stored only at the end of the MP4 file, then the file structure remains simple and compact, but users cannot access specific time points before the entire content is downloaded
Solution Approach 1:
The patent divides the random access information into multiple segments, with each content segment having its own random access information stored separately. This allows the client to access random access information for already-downloaded segments without needing to wait for the entire content to be downloaded, resolving the contradiction between enabling random access and reducing download time.
2Ease of operation
If random access information for each segment is stored separately, then users can access content segments independently before complete download, but the system complexity increases
Solution Approach 1:
The patent performs preliminary actions by storing random access information for each content segment as it is downloaded, rather than waiting for the complete content. The client proactively stores and makes available random access information for partially downloaded content, enabling early access without requiring complex post-processing or waiting for complete downloads.
3Ease of operation
If the entire content file must be downloaded before access, then data integrity is ensured, but user experience is degraded due to inability to access content incrementally
Solution Approach 1:
The patent segments both the content and the random access information, allowing the client to work with individual content segments and their corresponding random access information independently. This segmentation enables incremental access to complete segments while maintaining data integrity for each segment, resolving the contradiction between user experience and data completeness.
Data Source
AI summary
A multimedia contents random access method for a wireless communication system is provided. The live content access method of a client in a wireless communication system according to the present invention includes receiving a request for playing a content, receiving content structure information on the content from a content transfer server, receiving content segments and random access informations of the content segments from a content provision server using the content structure information, and performing, when a random access request is received, random access to the content segments using the random access information. The content random access method of the present invention is capable of accessing the content in unit of content segment such that it is possible to access a past time point in the content even before all of the content segments are received completely.