Composite Preview Video Generation for Efficient Content Scrubbing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for generating previews of content items, such as videos, involve searching composite preview images, which degrades user experience and network performance, especially for content with long playback durations.
Innovation Solution
Generating a composite preview video that includes frames corresponding to thumbnail previews, allowing for efficient compression and transmission, enabling seamless playback scrubbing and preview rendering without the need for multiple composite preview images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple composite preview images are used to represent content items of different durations, then preview accuracy is improved, but device complexity and network load increase
Solution Approach 1:
The patent merges multiple composite preview images into a single composite preview video that contains frames representing thumbnail previews at different time positions. This consolidation reduces system complexity by eliminating the need to manage multiple separate image files while maintaining preview accuracy through the video's frame-based representation of content at various durations.
Solution Approach 2:
The composite preview video serves multiple functions simultaneously: it acts as a preview mechanism, a time-position reference guide, and a replacement for multiple composite preview images. This multi-functionality reduces device complexity by consolidating what would otherwise require separate components while maintaining or improving preview accuracy.
2Productivity
If conventional search methods are used to find thumbnail previews in composite preview images, then preview retrieval is achieved, but network performance degrades
Solution Approach 1:
The system performs preliminary action by pre-generating and storing the composite preview video with frames at specific time positions during content creation or processing. This eliminates the need for real-time search operations through multiple composite preview images, thereby improving retrieval efficiency and reducing network performance degradation during actual preview requests.
Solution Approach 2:
Instead of searching through multiple composite preview images, the system uses a simplified copying approach where the composite preview video is transmitted and played back to extract the required frame at the desired time position. This reduces network bandwidth requirements and improves retrieval efficiency by replacing complex search operations with direct frame extraction.
3Reliability
If thumbnail previews are generated for all time positions, then preview completeness is improved, but data volume and network load increase
Solution Approach 1:
The patent applies local quality by generating thumbnail previews only at specific, meaningful time positions within the content rather than uniformly across all time positions. The composite preview video includes frames at strategically selected time points that represent key moments or milestones, providing sufficient preview completeness without the excessive data volume of generating previews at every possible time position.
Data Source
AI summary
Systems, methods, and non-transitory computer-readable media can cause a content item to be presented through a display screen of the computing device, the presentation of the content item beginning at a first time position. A determination is made that a user operating the computing device has adjusted the presentation of the content item to correspond to a second time position. A thumbnail preview that corresponds to the second time position is obtained from a composite preview video associated with the content item.