Multimedia Redirection via Server Frame Capture
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Solution Overview
Problem
Current multimedia redirection technologies face challenges in delivering high-quality, real-time multimedia playback over networks due to heavy network loads and delays, especially in scenarios like video conferencing, where clients need to download and process large multimedia files, leading to poor quality and scalability issues.
Innovation Solution
The system redirects multimedia playback by encoding content on a server and decoding it on a client device, using a proxy and agent module to manage the transfer and processing of multimedia content, optimizing bandwidth and reducing the load on the server, allowing for local playback with improved synchronization and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the server captures and transmits uncompressed multimedia images to clients, then the clients can view the multimedia content, but the network load increases significantly and playback quality deteriorates
Solution Approach 1:
The patent uses screen capture technology to create a copy of the server's display output and transmits this copy to client devices. Instead of transmitting the original high-quality multimedia data, the system captures the rendered frames from the server display and sends these captured images to clients, significantly reducing network bandwidth requirements while maintaining acceptable playback quality
Solution Approach 2:
The patent extracts only the essential visual information needed for playback by capturing individual frames from the server display. Rather than transmitting complete uncompressed multimedia streams, the system extracts and transmits only the necessary display frames, reducing overall data transmission volume while preserving the core playback experience
2Adaptability or versatility
If multiple clients connect to a single server for multimedia playback, then content sharing is enabled, but the server processing burden and network load increase, reducing scalability
Solution Approach 1:
The patent segments the multimedia playback function by separating the heavy processing tasks (multimedia decoding and rendering) performed on the server from the display tasks performed on individual client devices. Each client independently captures and displays frames from the server, allowing parallel playback to multiple clients without proportionally increasing server processing burden
Solution Approach 2:
The system enables content sharing by creating and transmitting display frame copies from the server to multiple clients simultaneously. Each client receives a copy of the rendered frames rather than requiring the server to maintain separate playback instances, improving scalability for multiple concurrent users
3Speed
If the server downloads and captures multimedia frames for transmission, then real-time playback is attempted, but synchronization errors and playback interruptions occur
Solution Approach 1:
The patent performs preliminary actions by pre-decoding and pre-rendering multimedia content on the server before transmission. The server prepares the multimedia frames in advance and maintains a buffer of ready-to-transmit frames, reducing latency and improving playback responsiveness while maintaining synchronization through pre-synchronized rendering
Data Source
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AI summary
A system for receiving redirected electronic media playback includes a proxy configured to communicate with a remote access module. The remote access module is configured to establish a remote access connection between the system and a remote system. The proxy is configured to receive, over the remote access connection, a decode request for electronic media content designated for a local multimedia application on the system, and in return, provide a result for the request. The proxy is also configured to receive at least one playback command designated for playing the electronic media content on the local multimedia application. The electronic media appears to be playing on a remote multimedia application on the remote system corresponding to the local multimedia application, but is played on the local multimedia application. A system for redirecting playback of electronic media content to a remote system, methods, and machine-readable media are also provided.