Device and method for pulling down media resource towards terminal device

A technology of terminal equipment and media resources, which is applied in the field of multimedia communication, can solve the problems that users cannot watch live programs, and achieve the effect of reducing the carrying load

Inactive Publication Date: 2010-01-06
林海燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a device and method for pulling down media resources to the terminal equipment, which solves the problem that the recorded program content is deleted from the hard disk by the CDN equipment due to the aging of the recorded program content, so that the user cannot watch the live program.

Method used

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  • Device and method for pulling down media resource towards terminal device
  • Device and method for pulling down media resource towards terminal device
  • Device and method for pulling down media resource towards terminal device

Examples

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Embodiment Construction

[0030] Based on the RTSP signaling and FTP protocol, the present invention provides a device and method for realizing PUSH (pull-down) media resources from a CDN device to a terminal. In the process of using RTSP signaling interaction between the terminal and the CDN device, RTSP signaling parameters are set , PUSH the media resources on the CDN device to the terminal device through the FTP protocol, and store the PUSHed media resources on the hard disk or peripheral memory of the terminal device. Users can play media files locally.

[0031] This embodiment provides an apparatus for pulling down media resources to a terminal device, such as figure 2 As shown, including: terminal equipment, CDN equipment and storage equipment;

[0032] The terminal device is used to send DESCRIBE (query request) to the CDN device, which carries the x-FTP parameter, as well as the IP address and port information of the terminal device; the x-FTP parameter indicates that the terminal device sup...

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PUM

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Abstract

The invention provides a device and a method for pulling down a media resource towards a terminal device. The method for pulling down a media resource towards a terminal device comprises the following steps: transmitting an inquiring request to a content distribution network (CDN) device by a terminal device; after the CDN device receives the inquiring request, returning a success inquiring respond message to the terminal device; after the terminal device receives the respond message, transmitting a file transport protocol (FTP) to the CDN device; and after the CDN device receives the FTP request, pulling down a media resource to the terminal device. The device and the method for pulling down a media resource towards a terminal device solve the problem that because recorded program content becomes old, the recorded program content is deleted from a hard disk by the CDN device, and a user can not watch live programs, and reduce the bearing load of the CDN device.

Description

technical field [0001] The present invention relates to the field of multimedia communication, in particular to a device and method for realizing pulling down media resources to a terminal device. Background technique [0002] A CDN (Content Delivery Network, Content Distribution Network) device is a media resource server that provides users with on-demand and live broadcast services. Users order programs or select live channels through terminal devices (such as set-top boxes (STB)). When the CDN device receives the user's on-demand or live broadcast request, it will convert the user's on-demand or live broadcast media resources into a media stream in the form of RTP (Real-time Transport Protocol) packets and send it to the terminal device. After receiving the media stream, the terminal device will It is directly sent to the interface watched by the user. [0003] For users who cannot watch live programs at that time, they can choose the live broadcast time-shift service to...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L29/06
Inventor 李丽彬程宁王冲刘澍
Owner 林海燕
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