MPEG-2 TS to ISO Base Media File Format Conversion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing technologies lack an efficient method to convert Moving Picture Experts Group (MPEG) transport streams into ISO base media file format, leading to issues with multiplexing information loss and compatibility when storing and sharing multimedia content across different terminals.
Innovation Solution
A method is introduced to convert MPEG-2 TS content into ISO base media file format by inserting necessary information at predetermined intervals, depacketizing streams into samples, chunks, or runs, and using fragment indicators to maintain multiplexing information and ensure compatibility, allowing for efficient conversion and sharing of content across multiple terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If MPEG-2 TS content is directly stored without conversion, then the original format is preserved, but compatibility with ISO base media file format terminals is lost
Solution Approach 1:
The patent applies preliminary action by inserting format conversion assistance information (header information of ISO base media file format) into the MPEG-2 TS stream before storage. This pre-prepared information enables terminals to perform format conversion without requiring complex pre-processing or manual configuration, thus improving compatibility while controlling conversion complexity.
2Productivity
If format conversion assistance information is inserted into MPEG-2 TS stream, then conversion speed is improved, but data structure complexity increases
Solution Approach 1:
The patent segments the format conversion assistance information into distinct header information elements that are inserted at predetermined intervals in the MPEG-2 TS stream. This segmentation allows terminals to extract and process only the necessary portions of information, improving conversion speed while managing data structure complexity through organized, modular information insertion.
3Adaptability or versatility
If element streams are depacketized into samples, chunks, or runs, then ISO base media file format compatibility is improved, but processing complexity increases
Solution Approach 1:
The patent uses format conversion assistance information as an intermediary that guides the depacketizing process. This intermediary information contains pre-calculated structure details that enable terminals to convert MPEG-2 TS element streams into ISO base media file format samples, chunks, or runs without requiring complex real-time analysis, thus improving compatibility while reducing processing complexity.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A method and an apparatus for converting content by a terminal in a multimedia system are provided. The method includes acquiring reference information for converting a first content based on a Moving Picture Experts Group (MPEG) transport stream to a second content based on a media file format and converting the first content to the second content using the reference information.