Video Special Effect Time Scaling for Flexible Playback Duration
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Solution Overview
Problem
Existing video special effect technologies fix the duration of animations after design, making it difficult to apply these effects to diverse application scenarios, leading to resource waste and affecting real-time video presentation.
Innovation Solution
A method for time-scaling video special effects, allowing external control of animation durations through a duration scaling strategy, enabling flexible playback durations based on user-configured scaling strategies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If video special effects are designed with fixed durations using professional video editing software, then the special effects can be properly designed and rendered, but they cannot be flexibly applied to diverse application scenarios with different playback duration requirements
Solution Approach 1:
The patent introduces a duration scaling strategy that dynamically adjusts the playback duration of video special effects based on application scenario requirements. Instead of fixed durations, the system allows runtime control of duration scaling factors, enabling the same special effect to be flexibly adapted to different playback durations without regenerating the effect files.
Solution Approach 2:
The patent changes the duration parameter of video special effects through a scaling strategy rather than creating multiple versions with different fixed durations. By modifying the duration scaling factor parameter at runtime, the system can adapt special effects to diverse scenarios while avoiding the complexity of generating and managing multiple special effect files.
2Adaptability or versatility
If multiple video special effects with different playback durations are generated in advance for various scenarios, then diverse duration requirements can be met, but computing resources are wasted and real-time video presentation is affected
Solution Approach 1:
The patent performs preliminary configuration of duration scaling strategies in the special effect files during design time, but the actual duration adjustment is deferred to runtime based on actual application needs. This allows the system to prepare the framework for diverse duration support without actually generating multiple versions, thus avoiding waste of computing resources and maintaining real-time performance.
Solution Approach 2:
The patent creates a universal duration scaling mechanism that can handle diverse playback duration requirements using a single special effect file. The duration scaling strategy enables one special effect to serve multiple functions across different scenarios, eliminating the need to generate multiple specialized versions and improving productivity.
3Ease of manufacture
If video special effects are designed with fixed durations, then the design process is simplified, but the same special effect cannot be applied to application scenarios with diversified duration requirements
Solution Approach 1:
The patent separates the special effect design process from the duration configuration process. The design phase remains simple with fixed duration rendering, while the duration adaptation is handled by a separate duration scaling strategy layer. This segmentation maintains ease of manufacture during design while adding adaptability through the scaling mechanism.
Solution Approach 2:
The patent introduces a duration scaling strategy as an intermediary between the fixed-duration special effect design and the diverse duration requirements of application scenarios. This intermediary layer preserves the simplicity of the design process while enabling flexible duration adaptation without requiring complex redesign.
Data Source
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AI summary
The present application provides a video special effect processing method and apparatus, an electronic device, and a computer readable storage medium. The method comprises: obtaining a video special effect file, and extracting a time stretching strategy from the video special effect file; obtaining a target playback duration that needs to be achieved when the video special effect file is applied to a designed scene, wherein the target playback duration is different from the original playback duration of the video special effect file; determining a special effect frame, corresponding to a target time axis, in the video special effect file according to the time stretching strategy, wherein the length of the target time axis is consistent with the target playback duration; and performing rendering according to the special effect frame corresponding to the target time axis to obtain a target video special effect conforming to the target playback duration.