Aspect-Ratio Grouped Multimedia Playback for Rotatable Screens
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Solution Overview
Problem
Rotatable screen devices experience frequent screen rotations and long browsing processing delays when sorting multimedia files by height-width ratio, disrupting the chronological order and increasing processing costs.
Innovation Solution
A multimedia file playing method that groups files in a level-by-level manner based on specified grouping parameters, generating sub file sequences for horizontal, vertical, and square screen types, and optimizing the file playing sequence to minimize device rotations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If files are sorted by height-width ratio to reduce screen rotation, then screen rotation frequency is reduced, but processing time increases due to high sorting cost
Solution Approach 1:
The patent pre-sorts files by height-width ratio into different categories (horizontal, vertical, square) before playback. This preliminary classification allows the playback system to quickly select appropriate files without performing expensive sorting operations during browsing, thus reducing processing delay while maintaining low screen rotation frequency
Solution Approach 2:
The patent segments the file library into multiple groups based on height-width ratio characteristics. By dividing files into distinct categories (horizontal screen type, vertical screen type, square screen type), the system can efficiently navigate through pre-organized groups rather than performing full sorting operations during browsing, reducing both screen rotation and processing time
2Ease of operation
If files are sorted by height-width ratio to minimize screen rotation, then screen rotation frequency is reduced, but chronological order is disrupted
Solution Approach 1:
The patent segments files into multiple groups based on height-width ratio while preserving chronological order within each group. By creating separate groups for horizontal, vertical, and square screen types and maintaining original file sequences within these groups, the system reduces screen rotation without disrupting the generation time sequence
Solution Approach 2:
The patent applies different sorting strategies to different local groups of files. Within each height-width ratio group, files maintain their original chronological order, while the groups themselves are organized by screen type. This local organization allows the system to minimize screen rotation at the group level while preserving chronological integrity at the file level
Data Source
AI summary
The present disclosure provides a multimedia file playing method and apparatus for a rotatable device. In some embodiments, the method includes grouping, in a level-by-level grouping manner and based on a specified grouping parameter sequence, files in a multimedia file library, to obtain a plurality of groups of files. Different parameters in the specified grouping parameter sequence correspond to different grouping granularities. The method further includes generating a sub file sequence for each height-width ratio type in each group of the plurality of groups of files. The height-width ratio type includes a horizontal screen type, a vertical screen type, and a square screen type. The method further includes generating and playing a file playing sequence according to a received file playing instruction, and based on sub file sequences of a corresponding group of the plurality of groups of files and a principle of minimum number of device rotations.