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MPEG (moving picture experts group)-DASH protocol based online video playing control system with code rate switch control and static abstract technology

A broadcast control system and bit rate technology, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of increasing program crashes, uncontrollable, waste of memory, etc., to achieve strong practicability, complete system and functions, The effect of improving user experience

Inactive Publication Date: 2014-08-06
BEIJING UNIV OF POSTS & TELECOMM
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0047] Placing 2 (or more) display controls on a layout may cause uncontrollable problems on different platforms, while creating 2 (or more) instances of the playback method for two display controls (mentioned earlier mediaplayer) will also waste a lot of memory and increase the possibility of program crashes. At the same time, from the perspective of the principle of video codec, this is not a real seamless switching playback technology

Method used

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  • MPEG (moving picture experts group)-DASH protocol based online video playing control system with code rate switch control and static abstract technology
  • MPEG (moving picture experts group)-DASH protocol based online video playing control system with code rate switch control and static abstract technology
  • MPEG (moving picture experts group)-DASH protocol based online video playing control system with code rate switch control and static abstract technology

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Embodiment Construction

[0068] First, briefly describe the principle of video broadcast control based on DASH protocol.

[0069] The video distribution system based on DASH protocol consists of two parts: client and DASH streaming server (video distribution server). The DASH server parses the video summary information (key frames) from the video file and stores it on the server as a picture file. After the client requests to send the video to the server, the DASH server first transmits the summary MPD file. After the client parses the MPD file, the client obtains the network address of the summary screen (key frame screen) and the location in the video file corresponding to the summary screen, and displays it on the client. After the summary screen and a certain summary screen are selected, the client will request to send the video to the server again, and the server will transmit the video MPD file, and according to the information in the request sent by the client (the location of the video segment...

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Abstract

The invention discloses a MPEG (moving picture experts group)-DASH protocol based online video playing control system with a code rate switch control and static abstract technology. A client side requests a streaming media server to send a target video, the streaming media server sends abstracted MPD (media presentation description) files of the target video and video clip MPD files of the target video to the client side after receiving a request of the client side, the client side downloads and analyzes the abstracted MPD files from the streaming media server to acquire abstracted images of the target video and positions of the abstracted images in the target video, the abstracted images are displayed in the client side, a user is allowed to select one of the abstracted images, a selection result is recorded in the client side, the client side downloads and analyzes the video clip MPD files from the streaming media server to acquire playing information of the video clips of the target video, and the client side determines the video clip corresponding to the selected abstracted images according to the playing information and the selection result and requests to the streaming media server to send and play the target video starting from the video clip.

Description

technical field [0001] The invention relates to the field of Internet streaming media, more specifically, to a broadcast control system with code rate switching control and static summary technology based on the Dash protocol. Background technique [0002] MPEG-DASH protocol standard [0003] Currently, mainstream media transmission specifications on the market include Smooth Streaming from Microsoft Group, HDS from Adobe Group, and HLS from Apple Group. These specifications are all self-contained and not universal. The MPEG-DASH protocol was created to address the versatility of the HTTP protocol under different platforms. This agreement was approved by the MPEG organization in 2011, and it has become a hot topic in the field of streaming media since then. This agreement allows different servers and clients to interact. Big changes happen. The emergence of the MPEG-DASH specification is a crucial step in the continuous maturity of streaming video adaptive bit rate transm...

Claims

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Application Information

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IPC IPC(8): H04N21/8549H04N21/472H04N21/643
Inventor 庄伯金谢伟男苏菲赵衍运赵志诚
Owner BEIJING UNIV OF POSTS & TELECOMM
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