Adaptive Media Stream Transcoding for Home Network Bandwidth
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Solution Overview
Problem
Current home network systems waste bandwidth by transmitting live video programs at a single, high resolution to multiple devices, even if they only require or can process lower resolutions, leading to inefficient resource usage.
Innovation Solution
An electronic device with a processor and storage medium that establishes a communication connection with terminal devices, determines their display requirements, and transcodes media streams to adaptively adjust resolution, frame rate, and bit rate to match each device's capabilities, reducing unnecessary bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single high resolution video stream is transmitted to multiple devices, then all devices can receive the video stream, but bandwidth is wasted on devices that only require or can process lower resolutions
Solution Approach 1:
The system segments the video stream into multiple versions with different resolutions (e.g., high definition and standard definition). The server detects the capabilities of each terminal device and transmits the appropriate resolution version to each device, avoiding bandwidth waste on devices that cannot process high resolution streams.
Solution Approach 2:
The system dynamically adjusts the video stream resolution based on real-time detection of terminal device capabilities. The server continuously monitors device characteristics and adapts the transmitted video quality accordingly, transforming from a static single-resolution approach to a dynamic multi-resolution approach.
2Reliability
If video streams are transmitted at high resolution to all devices, then video quality is maintained, but network bandwidth efficiency decreases
Solution Approach 1:
The system applies local quality adaptation by transmitting different video qualities to different devices based on their specific capabilities. High-definition streams are sent only to devices that can process them, while standard-definition streams are sent to devices with lower processing requirements, optimizing both video quality and bandwidth usage.
Solution Approach 2:
The system changes the resolution parameter of the video stream based on the detected capabilities of the terminal device. By adjusting this key parameter dynamically, the system ensures that each device receives video at the optimal quality level it can handle, improving overall network efficiency.
3Adaptability or versatility
If multiple terminal devices with different capabilities connect to the home network, then device compatibility increases, but determining appropriate transmission parameters becomes more complex
Solution Approach 1:
The system implements a feedback mechanism where the server detects the capabilities of each terminal device and uses this information to determine the appropriate video stream parameters. The detection results feed into the parameter selection process, creating a closed-loop system that automatically adapts to different device requirements.
Solution Approach 2:
The system enables terminal devices to self-identify their capabilities by detecting their own resolution and processing requirements. Each device essentially serves itself by providing capability information that the server uses to select the appropriate video stream, reducing the need for complex manual configuration.
Data Source
AI summary
Devices and methods for obtaining media stream with adaptive resolutions. The device includes a receiver in communication with a processor, and a transmitter. The receiver is configured to receive a plurality of media signals. The processor is programmed to communicate with a terminal device in the home network, obtain a corresponding display resolution of the terminal device, and select a media signal according to the corresponding display resolution of the terminal device and a video resolution of the media signal. The transmitter is configured to transmit media stream corresponding to the selected media signal to the terminal device.