Huawei Technologies Co., Limited

Jiying Dui

Yaohui Li

Zhefeng Yan

Haohua Chen

Chuansong Xue

Zhibing Wang

Jiahao Wei

Yandong Cao

A method for forward error correction (FEC) includes obtaining information on a type of a current frame, where the current frame includes a key frame and a non-key frame; determining a coding redundancy of the current frame according to the type of the current frame and a redundancy coding strategy, where the coding redundancy of the key frame is greater than that of the non-key frame; and using the determined coding redundancy to generate an FEC code for the current frame. The method is applicable to circumstances where FEC is performed for media data of various coding formats.

Method, device, and system for forward error correction

A method for constructing a network topology is applied in a streaming delivery system. The streaming delivery system includes: a center server (CS-P), an edge server (ES-P), a request scheduling server (RRS-P), and a client. The disclosed embodiments utilizes the upload capabilities of the client to transmit a part of streaming data, thus consuming fewer center server resources. By constructing the network topology, the disclosed embodiments enable the client to obtain a part of streaming data from other clients, reduces the load capability requirements for the server, and ensures that a streaming delivery network may provide streaming live services with higher bandwidths and better quality.

Method for constructing network topology, and streaming delivery system

An embodiment of the present invention disclose a method for fast forward/backward play of video data includes: obtaining fast forward/backward index information that meets a fast forward/backward play request from a pre-generated fast forward/backward sequence index file according to the fast forward/backward play request from a client; and obtaining video data that meets the fast forward/backward play request from a pre-generated fast forward/backward sequence file according to the index information and transmitting the video data to the client via a network. An embodiment of the present invention also discloses a streaming server. With the method and streaming server provided by the present invention, the fast forward/backward video data reading efficiency of the streaming server may be improved.

Method for fast forward/backward play of video data and a streaming server

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Shenzhen, China

Jiying Dui