Map File Generation for Ring Buffer Image Playback
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Solution Overview
Problem
High-resolution image data recorded on a ring buffer results in lengthy file creation times, preventing immediate reproduction of moving image files.
Innovation Solution
A file generation unit creates a map file to enable prompt reproduction of image data recorded on the ring buffer, allowing for immediate playback without the need for data copying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If image data is copied from ring buffer to recording area to create moving image file, then file creation is completed, but file creation time becomes long when image resolution is high
Solution Approach 1:
The patent divides the file creation process into two independent parts: (1) generating a map file that stores metadata and address information about the image data in the ring buffer, and (2) keeping the actual image data in the ring buffer. This segmentation allows the system to avoid copying large amounts of image data while still enabling file reproduction.
Solution Approach 2:
Instead of copying the actual image data from the ring buffer to create the moving image file, the patent creates a lightweight map file that contains references and metadata. This virtual copying approach maintains file creation functionality while dramatically reducing the time and resources needed for file generation.
2Manufacturing precision
If high-resolution image data is recorded on ring buffer, then image quality is improved, but time to create moving image file increases
Solution Approach 1:
The patent extracts only the essential metadata and address information from the high-resolution image data to create the map file, while leaving the actual image data in the ring buffer. This extraction approach preserves image quality without requiring time-consuming data copying.
3Ease of manufacture
If file system copies image data to different recording area, then moving image file is created, but user cannot immediately reproduce the file
Solution Approach 1:
The patent performs preliminary action by generating the map file immediately when the user requests file creation, without waiting for data copying. The map file is ready for immediate use, enabling instant file reproduction while the actual image data remains in the ring buffer.
Data Source
AI summary
An output processing unit 112 generates image data of a game being played by a user. A ring buffer 118 records the image data generated by the output processing unit 112. A file generation unit 124 generates a map file which is used to reproduce the image data recorded on the ring buffer 118 in the order in which the image data has been recorded on the ring buffer 118, and then records the map file on a file recording unit 126.