Multi-Stage Video Editing Background Rendering with Composite Tree
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Solution Overview
Problem
Video editing is a time-consuming process due to the need for frequent re-rendering of entire video projects to reflect individual changes, and existing tools lack efficient background rendering and organized storage and retrieval of rendering results, leading to inefficiencies in previewing and editing.
Innovation Solution
A multi-stage video editing process with background rendering that allows users to continue editing while rendering occurs, using a 'composite tree' with nodes that indicate rendering and caching status through color, shape, or blinking, and storing renders in temporary and persistent locations for later retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the entire video project is re-rendered to reflect every individual change, then the rendering accuracy is improved, but the time consumption increases significantly
Solution Approach 1:
The video editing system divides the rendering process into independent segments corresponding to different nodes in the composite tree. Each node represents a discrete editing operation that can be rendered independently. When a change is made, only the affected node and its dependent nodes need to be re-rendered, rather than the entire video project. This segmentation enables selective rendering of specific portions of the video sequence, significantly reducing time consumption while maintaining rendering accuracy for the modified sections.
Solution Approach 2:
The system performs preliminary rendering of video nodes in advance and stores the rendered results in cache memory. When editing operations are performed, the system checks whether previously rendered results are still valid or if re-rendering is needed. This preliminary action allows the system to avoid redundant rendering of unchanged sections, reducing time consumption while ensuring that accurate rendered results are available when needed.
2Productivity
If background rendering is implemented to allow continuous editing, then productivity is improved, but the system complexity increases
Solution Approach 1:
The system implements dynamic rendering where the rendering process can occur in the background while editing continues in the foreground. The composite tree structure allows the system to dynamically determine which nodes need rendering based on changes made. The background rendering process operates independently and can be paused, resumed, or cancelled as needed, providing flexibility without requiring complex system reconfiguration. This dynamic approach improves productivity by allowing simultaneous editing and rendering while managing system complexity through the structured node-based architecture.
3Productivity
If multiple renders are stored and retrieved from different locations, then the organization and retrieval efficiency are improved, but the storage management complexity increases
Solution Approach 1:
The system implements a nested storage structure where rendered results are cached in multiple hierarchical levels. The composite tree structure naturally creates a nested organization where parent nodes contain references to child nodes, and rendered results can be stored at different levels of the hierarchy. This nested approach allows efficient retrieval by enabling the system to access rendered results from the most appropriate storage location based on the specific editing needs, improving retrieval efficiency while managing storage complexity through the inherent hierarchical structure of the composite tree.
Data Source
AI summary
Some embodiments of the invention provide a user interface of editing video through a multi-stage editing process. The user interface selects a particular stage in the editing process. A particular editing operation is performed on a set of video images during the particular stage. After the selection of the particular stage, the user interface uses a background rendering process to render the result of the particular editing operation on the particular set of video images. The background rendering process is a process that the user interface performs separately from the multi-stage video editing process, so that a user may continue editing the video sequence while the rendering occurs. Some embodiments provide a preview of the rendering process in a preview window. Some of these embodiments update the preview in real time. In some embodiments, the rendering occurs to a temporary location and then stores to a persistent storage. In some of these embodiments, an entry for the stored render's location is logged in a list of entries that allows the stored render to be catalogued and retrieved from the persistent storage. The temporary location and the persistent storage can be part of a non-volatile memory such as a hard drive.