Screen Projection via HTTP Player Page
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Solution Overview
Problem
Existing screen projection technologies face challenges with poor generality and long screen projection delays, particularly when projecting content from small mobile terminal screens onto large screens, due to differences in screen projection protocols and inefficiencies in media file transmission.
Innovation Solution
A screen projection method and system that utilizes a player page with a built-in player to transmit media files in a preset format, such as FLV or TS, via HTTP, allowing for efficient loading and playback of media files across different devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different screen projection protocols are installed on each equipment to support screen projection, then screen projection compatibility is improved, but device complexity and installation difficulty increase significantly
Solution Approach 1:
The patent applies universality by using HTTP protocol, which is a universal communication protocol already widely supported by browsers and web servers. Instead of implementing multiple device-specific projection protocols (Miracast, AirPlay, DLNA, etc.), the system uses a single HTTP-based approach that can serve multiple projection functions, eliminating the need to install and configure different protocols on each device.
Solution Approach 2:
The patent introduces an intermediary mechanism by using a web server and browser as mediators between the projection source and display device. The projection source acts as an HTTP server serving media files, while the display device uses a browser to access and play these files. This intermediary web-based layer abstracts away the complexity of direct device-to-device protocol communication.
2Ease of manufacture
If website or fragment resource delivery is used for screen projection, then implementation simplicity is improved, but screen projection delay increases and efficiency decreases
Solution Approach 1:
The patent applies preliminary action by pre-processing and encapsulating media files into standardized HTTP-friendly formats (such as HLS or DASH segments) before transmission. The projection source device converts the media content into a format optimized for HTTP streaming in advance, which reduces processing delays during the actual projection process and enables faster startup and smoother playback.
3Reliability
If traditional screen projection methods are used, then device-specific functionality is maintained, but generality and applicability across different devices are reduced
Solution Approach 1:
The patent achieves universality by building a projection system based on HTTP protocol, which is universally supported by web browsers and servers across different platforms and devices. This approach allows the same projection mechanism to work across smartphones, tablets, computers, and display devices regardless of their operating systems or native projection capabilities, significantly improving cross-device compatibility and generality.
Data Source
AI summary
Disclosed in the present disclosure are a screen projection method, a screen projection device, a screen projection display device, a screen projection system and a medium. The method is applied to a screen projection device, and comprises: receiving a screen projection request, the screen projection request comprising an access address of a player page; generating a player page based on the access address, wherein a player is built in the player page, and the playback address associated with the player is an address of a media file in a preset format; and transmitting the media file in the preset format by means of a hypertext transfer protocol.