Streaming Linear Channel Composition With Seamless Segment Transitions
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Solution Overview
Problem
Existing systems for transmitting OTT linear channels face challenges in modifying the composition chain, which can compromise the transmission of traditional linear channels, leading to risks such as latency and encoding artifacts, making technicians reluctant to make changes.
Innovation Solution
A method and device for composing a streaming linear channel by generating a reproduction list that specifies the succession of audiovisual segments from multiple sources, independent of user requests, using segment identifiers to ensure seamless transitions between contents without altering the content data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the composition chain is modified to enable OTT linear channel transmission, then streaming functionality is improved, but transmission reliability of traditional linear channels deteriorates due to risks such as latency and encoding artifacts
Solution Approach 1:
The patent segments the composition chain into two independent parts: a traditional linear channel composition chain that maintains existing reliability, and a new streaming linear channel composition chain that handles OTT streaming. The streaming composition chain includes a streaming content supplier that generates streaming linear channels independently, using segment identifiers to organize content without affecting the traditional composition chain. This segmentation allows OTT functionality to be added while preserving the reliability of traditional linear channel transmission.
2Stability of the object's composition
If segment identifiers are used to organize content from multiple sources, then content transition smoothness is improved, but system complexity increases due to list generation and management
Solution Approach 1:
The patent introduces a manifest file as an intermediary that manages segment identifiers from multiple content sources. The manifest file stores and organizes segment identifiers in a structured manner, allowing the streaming composition chain to retrieve and assemble segments without direct complex interactions between multiple content sources. This intermediary simplifies the system architecture by centralizing the management of segment identification and ordering, thereby reducing overall system complexity while maintaining smooth content transitions.
3Ease of manufacture
If a continuous flow is maintained for traditional linear channels, then transmission simplicity is improved, but adaptability to streaming protocols deteriorates
Solution Approach 1:
The patent implements a dynamic architecture where the streaming composition chain can adapt its output format based on protocol requirements. The streaming content supplier generates a continuous flow similar to traditional linear channels, but with the flexibility to segment and reorganize content according to streaming protocol requirements (such as HLS or DASH). The system dynamically adjusts the segmentation and manifest generation process to match the specific protocol being used, maintaining transmission simplicity while achieving high protocol adaptability.
Data Source
AI summary
A method is disclosed that generates a streaming linear channel reproduction list, the list a including a first streaming linear channel segment identifier and a second streaming linear channel segment identifier each identifying, respectively, a first and a second audiovisual streaming linear channel segment and obtained on the basis of, respectively, a first content segment identifier and a second content segment identifier and in which the streaming linear channel reproduction list specifies that the second streaming linear channel segment is to be reproduced in succession immediately after the first streaming linear channel segment.