Motion Video Playback Scheme Generation for Bandwidth Reduction
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Solution Overview
Problem
Existing methods for presenting recorded motion video are complex, memory-intensive, and processing-intensive, particularly when dealing with multiple video recordings of varying qualities stored at different locations, leading to high network load and inefficient data transmission.
Innovation Solution
A method for preparing and presenting recorded motion video that generates a playback scheme based on video quality values, including resolution and frame rate, to select the most suitable recording for a specific time period, reducing bandwidth and processing requirements by selecting recordings with qualities closest to the target resolution and aspect ratio, and minimizing unnecessary data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple motion video recordings of different qualities are stored and transmitted for playback, then video quality and adaptability are improved, but network load and data transmission requirements increase
Solution Approach 1:
The system pre-generates multiple versions of motion video recordings with different quality levels (e.g., different resolutions, frame rates, or compression ratios) and stores metadata about these versions. When a playback request occurs, the client device can immediately select and retrieve the appropriate pre-processed version without requiring real-time transcoding or quality conversion, thus reducing network load while maintaining adaptability to different quality requirements
Solution Approach 2:
The patent extracts and transmits only the essential metadata information (such as quality parameters, timestamps, and selection criteria) rather than transmitting all possible video quality versions. The client device uses this extracted information to selectively request and receive only the specific video recording version that matches its requirements, significantly reducing the quantity of data transmitted over the network while preserving the ability to adapt to different quality needs
2Productivity
If all motion video recordings are downloaded and processed locally, then playback flexibility and speed are improved, but memory consumption and processing load increase
Solution Approach 1:
The system extracts and transmits only the necessary metadata and selection information about available video recordings (such as quality levels, time stamps, and identification data) rather than downloading complete video files. The client device processes this compact metadata locally to determine which specific video recording to request and play back, achieving fast local decision-making and playback initiation without consuming significant memory for storing multiple complete video versions
Solution Approach 2:
The server performs preliminary organization and indexing of video recording metadata in advance, making it readily available for quick client-side selection and playback initiation. This pre-processed metadata structure enables the client to rapidly identify and request the appropriate video recording without requiring extensive local memory or complex processing, thus improving playback speed while minimizing memory consumption
Data Source
AI summary
The present invention relates to a method for preparing presentation of recorded motion video. The method preparing and sending a request for recorded video that originates from a specific video source, receiving a video information message including data relating to characteristics of a plurality of motion video recordings captured by the video source, wherein the received characteristics of each motion video recording includes a recording identity, a video quality value, a media address, an indication of start time and end time for the recording, and generating a motion video play scheme based at least on said video quality value, said indication of start time, and said indication of end time for each motion video recording.