Video Compression Index Frame Storage
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Solution Overview
Problem
The existing methods for storing multiple copies of video data for multiple users are inefficient due to high storage requirements, especially in cloud-based or server-based environments, where identical copies of data need to be maintained for each user, leading to scalability issues and increased storage costs.
Innovation Solution
The system splits video data into a dependent and an independent portion, where the dependent portion is shared among all users and the independent portion is uniquely stored for each user, allowing for efficient storage by compressing the data using index frames and delta frames, and optionally encrypting and watermarking the index frames for each user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If duplicate copies of the entire video file are stored for each user, then each user has full access to the video data, but storage requirements become prohibitive and scalability is limited
Solution Approach 1:
The video file is segmented into two distinct portions: index frames (I-frames) and delta frames (P-frames and B-frames). This segmentation allows the system to store only one copy of the large delta frames portion while storing unique copies of the smaller index frames portion for each user, dramatically reducing total storage requirements while maintaining full user access capability
Solution Approach 2:
Instead of copying the entire video file for each user, the system creates unique copies only of the index frames portion for each user. The delta frames are stored as a single shared copy that can be combined with any user's index frames to reconstruct the complete video file, eliminating redundant data storage
2Adaptability or versatility
If multiple unique copies of video data are stored for multiple users, then each user has independent access, but storage costs increase linearly with the number of users
Solution Approach 1:
The shared delta frames portion serves multiple functions simultaneously: it can be combined with any user's unique index frames to reconstruct the complete video file for any number of users. This universal component eliminates the need to store separate delta frames for each user, allowing the system to scale to any number of users without increasing storage space for the delta frames portion
3Quantity of substance
If the video data is compressed using index frames and delta frames, then storage efficiency improves, but the system complexity increases
Solution Approach 1:
The video file is pre-processed during compression to separate index frames from delta frames and identify which portions should be shared versus made unique for each user. This preliminary action during the compression phase establishes the foundation for efficient storage without requiring complex real-time processing during user access, as the decomposition and reconstruction logic is predetermined
Data Source
AI summary
The system provides a method and apparatus for writing a unique copy of data associated with each of a plurality of individual users, without the need for storing duplicate copies of the entire data file. The system provides for creating an unusable copy of a portion of the data that is to be shared by all users of the complete data. The system will store and optionally encrypt and/or watermark a unique copy of the remainder portion of the data for each unique user. When accessed from storage, the system will combine the shared portion with the unique remainder to reconstitute the entire file for access by the user. Deleting the unique remainder associated with a particular user makes all of the data useless to that user. In one embodiment, the system first compresses the entire data file using index frames and delta.