Embedding Thumbnail Data in Video Files for Consistent Preview
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing video decoding systems face challenges in selecting representative thumbnail images for video files, leading to inconsistent results and increased power consumption, particularly on mobile devices, due to the need to decode multiple frames and varying algorithms across different operating systems.
Innovation Solution
Embedding thumbnail information, such as a representative image or an index to a key frame, directly into the video file, allowing for consistent thumbnail display across different operating systems and reducing power consumption by decoding only the necessary frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple frames are decoded to select a representative thumbnail, then the quality and representativeness of the thumbnail is improved, but power consumption increases
Solution Approach 1:
The patent embeds thumbnail information (such as a representative frame index or pre-encoded thumbnail image) into the video file during encoding, so that when the video is browsed or previewed, the thumbnail is already available without needing to decode multiple frames at runtime. This preliminary preparation eliminates the need for power-consuming frame decoding operations during browsing while ensuring consistent thumbnail display across different devices and operating systems.
2Measurement precision
If multiple frames are decoded to find a representative thumbnail, then the accuracy of thumbnail content is improved, but processing time increases
Solution Approach 1:
The thumbnail information is prepared and embedded into the video file during the encoding process. This allows the thumbnail to be immediately displayed during browsing without requiring runtime frame decoding, thereby eliminating browsing delays while ensuring the thumbnail accurately represents the video content through the encoder's selection of appropriate frames.
3Adaptability or versatility
If different operating systems use their own algorithms to select thumbnail frames, then system independence is maintained, but consistency of thumbnail display deteriorates
Solution Approach 1:
The patent embeds thumbnail information directly into the video file format in a standardized manner that can be read by any operating system or video player. This universal approach ensures that all systems display the same thumbnail image regardless of their native algorithms, achieving both OS compatibility and thumbnail consistency simultaneously.
Data Source
AI summary
Methods and systems may provide for embedding thumbnail information into a video file such as a clip, stream, recording, and so forth. The thumbnail information may include, for example, a representative image of the video content in the file, an index to a key frame in the video content, or any combination thereof. If the thumbnail information includes the representative image, the representative image may be embedded at a predetermined location in the file. If the thumbnail information includes the index to a key frame, the index may be embedded in a header of the file.