Video Editing Frame Caching Priorities for Multi-Track Clipping
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Solution Overview
Problem
Existing video editing systems cache a fixed number of frames per video material, leading to inefficient memory usage and stuck video clipping processes when handling multiple video materials, resulting in low editing efficiency.
Innovation Solution
A method to determine cache priorities for video track segments based on their location within the editing interface and timeline, allowing flexible caching of frames with different priorities, using a cache frame configuration parameter to optimize memory usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed number of video frames are cached per video material according to preset configuration, then the caching process is simple to implement, but the memory occupation increases significantly when handling multiple video materials, causing the video clipping process to stall
Solution Approach 1:
The patent applies local quality by differentiating caching strategies for different video track segments. Instead of uniformly caching a fixed number of frames for all video materials, the system identifies and prioritizes caching for track segments that are currently displayed or near the playhead position. This selective approach ensures that memory resources are allocated to the most relevant segments, improving video clipping efficiency without requiring complex global resource management
Solution Approach 2:
The patent implements dynamics by making the cache size adaptive rather than static. The caching system dynamically adjusts the number of frames to cache based on real-time conditions such as the number of visible tracks, the position of the playhead, and the complexity of the current editing operation. This dynamic adaptation allows the system to maintain high productivity across varying workloads while avoiding memory overflow that would cause stalling
2Stability of the object's composition
If a fixed number of video frames are cached per video material, then the memory usage is predictable and manageable, but the system becomes unresponsive and stalls when processing multiple video materials simultaneously
Solution Approach 1:
The patent applies parameter changes by modifying the cache configuration parameters dynamically based on the current editing state. When multiple video materials are being processed, the system adjusts parameters such as cache frame count and priority levels according to the specific needs of each track segment. This allows the system to maintain stable memory usage patterns while ensuring that critical operations have sufficient resources, thereby preventing process stalls and improving reliability
Solution Approach 2:
The patent implements feedback mechanisms where the system continuously monitors memory usage, track visibility, and playback position to adjust caching behavior in real-time. This feedback loop ensures that memory allocation remains stable and predictable while adapting to changing conditions, preventing the system from becoming unresponsive during multi-material processing
Data Source
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AI summary
The present disclosure provides a video processing method, apparatus and electronic device. The method comprises: determining a plurality of video track segments on a plurality of video editing tracks on a video editing interface; determining cache priorities of the track segment image frames of the plurality of video track segments, according to whether the plurality of video editing tracks are located in the display area of the video editing interface, and track segment image frames of the plurality of video track segments within a track timeline range of the display area; wherein the track segment image frames of the video track segments are displayed at track timeline positions corresponding to the track segment image frames in the video track segments; determining a target track segment image frame from the track segment image frames of the plurality of video track segments based on the cache priorities and a cache frame configuration parameter, and caching the target track segment image frame. The efficiency of video clipping is improved.