Dual-Hub Video Processing for Flexible PiP and PbP Display
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Solution Overview
Problem
Existing video processing devices can only support a single video stream on a single displayer and do not support multiple video streams in picture-in-picture or picture-by-picture modes.
Innovation Solution
A video processing device with a first and second hub, and a scaling control module that combines video streams from multiple signal sources to generate picture-in-picture or picture-by-picture streams based on user commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a video processing device supports only a single video stream on a single displayer, then the device complexity is low, but the adaptability and versatility are limited
Solution Approach 1:
The video processing device is designed to perform multiple functions by supporting both picture-in-picture mode and picture-by-picture mode with multiple video streams. The scaling control module can handle different video stream configurations and display modes, making the device versatile enough to accommodate various viewing scenarios without requiring separate dedicated devices for each function.
Solution Approach 2:
The device is divided into functional modules including a first hub, a second hub, and a scaling control module. Each module handles specific aspects of video processing, such as signal acquisition from different sources and coordinate transformation for different display modes. This segmentation allows the complex functionality to be managed through modular components that can operate independently and cooperate to achieve the overall versatile performance.
2Adaptability or versatility
If the device combines multiple video streams for picture-in-picture or picture-by-picture modes, then the versatility is improved, but the device complexity increases
Solution Approach 1:
The scaling control module serves as an intermediary between the multiple video streams from different hubs and the final display output. It receives video streams from the first and second hubs, performs coordinate transformation and stream combination based on the selected display mode, and outputs the processed video signal. This intermediary component simplifies the overall system architecture by centralizing the complex video stream management and processing functions in a dedicated module.
Data Source
AI summary
A video processing device and a video processing method supporting free pairing of a picture-in-picture mode and a picture-by-picture mode are provided. The video processing device includes a first hub, a second hub, and a scaling control module. The first hub obtains a first video stream from a first signal source, and the second hub obtains a second video stream from a second signal source. The scaling control module obtains the first video stream and the second video stream respectively from the first hub and the second hub. When the scaling control module receives a picture-in-picture mode command, the scaling control module combines the first video stream and the second video stream to generate a picture-in-picture video stream. When the scaling control module receives a picture-by-picture mode command, the scaling control module combines the first video stream and the second video stream to generate a picture-by-picture video stream.