ISOBMFF Sample Compression for Uncompressed Media Storage
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Solution Overview
Problem
The storage and transmission of uncompressed data using the new ISO/IEC 23001-17 standard face challenges in terms of storage and transmission efficiency, while preserving features like compatibility and interoperability with existing ISOBMFF standards.
Innovation Solution
A method for encapsulating media data into an ISO Base Media File Format (ISOBMFF) standard compliant file involves obtaining samples, generating ISOBMFF structure data, compressing the samples using a generic and lossless compression, and embedding the compressed data within the file, while maintaining features like random access and data multiplexing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If uncompressed data is stored using the new ISO/IEC 23001-17 standard, then compatibility and interoperability with existing ISOBMFF standards are preserved, but storage and transmission efficiency deteriorate due to the large amount of data
Solution Approach 1:
The patent segments the media data into individual samples and applies compression selectively to specific samples rather than treating the entire data stream uniformly. This allows the system to maintain ISOBMFF structure and compatibility while reducing the quantity of uncompressed data stored, thereby improving storage efficiency without sacrificing interoperability
Solution Approach 2:
The patent changes the compression parameter state by applying lossless compression to selected samples while leaving other samples uncompressed. This parameter change enables the system to optimize storage efficiency for specific data portions while maintaining the flexibility and compatibility characteristics of the ISOBMFF standard
2Quantity of substance
If lossless compression is applied to samples in ISOBMFF format, then storage efficiency is improved, but processing complexity increases due to the need to maintain random access and data multiplexing features
Solution Approach 1:
The patent divides the media data into discrete samples and applies compression selectively to specific samples rather than the entire data stream. This segmentation allows the system to manage processing complexity by treating only portions of the data with compression operations while maintaining the overall ISOBMFF structure and its required features like random access and multiplexing
Solution Approach 2:
The patent applies compression partially to only certain samples rather than all samples in the media file. This partial action reduces processing complexity compared to full-file compression while still achieving storage efficiency improvements for the compressed portions, without compromising the required ISOBMFF features
Data Source
AI summary
A method for encapsulating media data into an ISO Base Media File Format (ISOBMFF) standard compliant file, the media data comprising a sequence of samples, including obtaining at least one sample of the sequence, generating ISOBMFF structure data indexing the at least one obtained sample, compressing the at least one obtained sample, and embedding the generated ISOBMFF structure data and the compressed at least one sample within the ISOBMFF compliant file.