Uncompressed Video File Encapsulation With Self-Describing Metadata
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Solution Overview
Problem
Existing file formats for uncompressed video sequences require prior knowledge of the format to parse and manipulate the data, limiting flexibility and efficiency in handling various formats and operations such as temporal sub-bitstream extraction and spatial region extraction.
Innovation Solution
A method of encapsulating uncompressed images and video data in a media file using generic description information that indicates the images are uncompressed, allowing for flexible manipulation and parsing without prior format knowledge, including data structures that describe the components and their organization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing file formats for uncompressed video sequences are used, then the data can be stored in a structured manner, but prior knowledge of the format is required to parse and manipulate the data, limiting flexibility
Solution Approach 1:
The patent applies preliminary action by embedding format description metadata within the file structure itself before parsing is needed. The metadata contains information about component organization, data layout, and format characteristics, allowing parsers to understand the structure without requiring external knowledge or prior configuration.
Solution Approach 2:
The patent introduces metadata as an intermediary layer between the raw uncompressed video data and the parser. This metadata acts as a mediator that translates the binary data structure into understandable format information, enabling flexible parsing without requiring the parser to have hardcoded knowledge of specific formats.
2Ease of operation
If generic description information is used to enable flexible parsing, then prior format knowledge is not required, but additional metadata structures must be created and maintained
Solution Approach 1:
The patent applies homogeneity by using a unified metadata structure that can describe multiple different uncompressed video formats through a common set of attributes. Rather than creating separate complex structures for each format, a single homogeneous metadata template handles various component organizations (planar, packed, hybrid) and data layouts through standardized fields.
3Adaptability or versatility
If component values are organized in different formats (packed, planar, hybrid), then flexibility in representing different video formats is achieved, but difficulty in detecting and measuring the organization increases
Solution Approach 1:
The patent applies preliminary action by recording the component organization type (packed, planar, hybrid) and specific layout details in the metadata before the parsing process begins. This advance documentation eliminates the need for complex detection algorithms during parsing, as the organization structure is already described in the metadata.
Data Source
AI summary
The present invention concerns a method of encapsulating one or more uncompressed images in a media file, wherein the method comprises: generating generic description information describing the images and indicating that the images are uncompressed; and encapsulating the generic description information and the one or more images in the media file, the uncompressed images being encapsulated as one or more image items, the generic description information being encapsulated in a metadata part of the media file describing the image items.