Freeview AV File Structure for Efficient Object Storage
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Solution Overview
Problem
Existing MPEG-4 system standard file formats for multimedia services are inefficient in storing and accessing multiple audio/video objects, requiring complex operations for user interactions and lacking in readiness for diverse media types in freeview AV services.
Innovation Solution
A file format and method for creating and playing freeview AV content that includes a file header, audio object information, and video object information, processed into a preset format, allowing for the construction of various AV scenes using constant and variable presets, enabling user selection and control of AV objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the MPEG-4 system standard file format is used to store multiple audio/video objects, then all types of media objects can be included, but the storage efficiency is low and access readiness is poor
Solution Approach 1:
The patent segments the file format into distinct components: file header, audio object information, and video object information. Each component is independently structured and stored, allowing for efficient access and processing of specific media types without requiring parsing of the entire file structure.
Solution Approach 2:
The patent introduces a new organizational dimension by creating a preset-based structure that categorizes audio and video objects into structured groups. This dimensional reorganization transforms the flat, generic MPEG-4 object structure into a hierarchical, access-optimized structure with improved storage efficiency.
2Adaptability or versatility
If the MPEG-4 system standard file format is used, then diversified media types can be supported, but the complexity of operations for user interactions increases
Solution Approach 1:
The patent applies preliminary action by pre-organizing audio and video objects into structured presets during file creation. The file header and object information are pre-configured with standardized formats, so that during playback, the terminal can directly access and process objects without complex real-time operations or interpretation.
3Adaptability or versatility
If BIFS data and commands are used for user interactions in MPEG-4 system, then various interaction functions can be implemented, but the complexity in the copyright stage and play terminal increases
Solution Approach 1:
The patent extracts the complex BIFS data and command processing from the file format structure. By separating object information into standardized, self-descriptive formats in the file header and object information sections, the patent eliminates the need for complex BIFS interpretation at the play terminal, reducing processing complexity while maintaining interaction capabilities.
4Adaptability or versatility
If the MPEG-4 system standard file format is used, then all media objects can be included, but the readiness of access to each object is reduced
Solution Approach 1:
The patent segments the file into clearly defined sections (file header, audio object information, video object information) with explicit indexing. This segmentation allows the playback terminal to directly jump to and access specific object information without parsing through the entire file structure, significantly reducing access time while maintaining the ability to include all media objects.
Data Source
AI summary
A method of creating a file according to a freeview audio/video (AV) service, the method including: creating a file header that includes content related information, AV object related information, preset related information, or preset information associated with at least one preset; creating audio object information associated with at least one audio object; creating video object information associated with at least one video object; and processing the file header, the audio object information, and the video object information into a preset format of a single freeview AV file to store the processed preset format of the freeview AV file is provided.