WO2007051343A1 - Système de transmission de support de flux à bande passante adaptative de système serveur de support de flux et méthode pour ceux-ci - Google Patents

Système de transmission de support de flux à bande passante adaptative de système serveur de support de flux et méthode pour ceux-ci Download PDF

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Publication number
WO2007051343A1
WO2007051343A1 PCT/CN2005/001795 CN2005001795W WO2007051343A1 WO 2007051343 A1 WO2007051343 A1 WO 2007051343A1 CN 2005001795 W CN2005001795 W CN 2005001795W WO 2007051343 A1 WO2007051343 A1 WO 2007051343A1
Authority
WO
WIPO (PCT)
Prior art keywords
packet
streaming media
bandwidth
media data
bandwidth detection
Prior art date
Application number
PCT/CN2005/001795
Other languages
English (en)
Chinese (zh)
Inventor
Zunyou Ke
Liang Guo
Jie Hu
Ji Lv
Tao Yu
Jiming Zhang
Original Assignee
Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to PCT/CN2005/001795 priority Critical patent/WO2007051343A1/fr
Priority to CN2005800524650A priority patent/CN101352009B/zh
Publication of WO2007051343A1 publication Critical patent/WO2007051343A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/11—Identifying congestion
    • H04L47/115—Identifying congestion using a dedicated packet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/38—Flow control; Congestion control by adapting coding or compression rate

Definitions

  • the present invention relates to the field of network communication technologies, and relates to a method and a method for processing streaming media data adapted to adapt to bandwidth changes on a network, and in particular, to a bandwidth adaptive streaming media transmission system and method for a streaming media service system. Background technique
  • IP Internet Protocol
  • the main way to implement bandwidth adaptive streaming media transmission is to provide several different bit rate encoded streaming media data for each media file in advance, and use a bit rate high or according to the detected bandwidth.
  • Low streaming media data Low streaming media data.
  • Patent Document existing comprising: Chinese Patent Application No. 02159354 of application “Method for adaptively adjusting the video quality of the network,” and U.S. Patent Application Publication No. 20050108414 specifically Wo of 1 J “System and method for transmitting data in computer systems using Virtual streaming” (system and method of using virtual streams to transfer data in a computer system).
  • the Chinese patent application with the application number 02159354 has the following shortcomings: 1.
  • the patent does not provide a solution for streaming media services. This solution is the core technology of bandwidth adaptive streaming media transmission. 2.
  • the method adopted by the system is not the target system.
  • the specification system uses custom processing and interface modules. This patent only proposes a method to solve bandwidth measurement using a separate module outside the specification system, so it is difficult to integrate into the existing streaming media service specification system.
  • additional processing modules and interfaces that must be added will inevitably increase the complexity of the system, the development of the system is more difficult and the reliability of the system is reduced.
  • U.S. Patent Application Publication No. 20050108414 has the following disadvantages: This patent proposes a system and method for variable virtual flow to accommodate bandwidth changes for data transmission.
  • the method divides the data to be transmitted into a plurality of small parts, transmits them through multiple channels allowed in the bandwidth, and then combines them at the destination end.
  • the method is based on simple segmentation of data, rather than on the basis of data coding analysis, and does not provide a solution for logical segmentation of coded data.
  • a bandwidth adaptive streaming media transmission system of a streaming media service system of the present invention includes:
  • the client which is responsible for providing an IP-based communication mechanism, provides a transmission channel for streaming data transmission and bandwidth detection message transmission, such as Real Time Transport Protocol (RTP) and Real Time Transport Control Protocol (Realtime Transport). Control Protocol) (hereinafter referred to as RTCP); it is responsible for receiving the bandwidth detection message packet, transmitting the bandwidth detection feedback message packet, and receiving the streaming media data packet, and decoding and processing the streaming media data packet to play the audio and video;
  • RTP Real Time Transport Protocol
  • Realtime Transport Real Time Transport Control Protocol
  • the streaming media server is responsible for providing an IP-based communication mechanism, providing a transmission channel for streaming data transmission and bandwidth detection message transmission, such as RTP, RTCP, etc.; it is responsible for packaging and transmitting the bandwidth detection message.
  • the message packet receiving the bandwidth detection feedback message packet, calculating an average packet loss rate within a preset time (for example, 10 seconds), and performing logical control and secondary decoding coding; wherein the architecture of the streaming media server side includes: Stream and media data streams.
  • the control flow includes: a bandwidth detection message sending module, a bandwidth detection feedback message receiving module, a bandwidth detection feedback message parsing module, and a bandwidth adaptation logic control module;
  • the media data stream includes: a media data receiving module, and a media data.
  • the bandwidth detection message sending module is configured to send the bandwidth detection message packet to the client, and the bandwidth detection feedback message receiving module is configured to receive the bandwidth detection feedback message packet returned by the client, and the bandwidth detection feedback message is parsed.
  • the module is responsible for parsing the above bandwidth detection Detecting a feedback message packet, and taking out field information related to bandwidth detection, such as a packet loss rate; the bandwidth adaptation logic control module is configured to calculate an average packet loss rate within a predetermined time period, and determine according to the average packet loss rate.
  • the media data receiving module is responsible for reading the streaming media data packet; the media data decoding module is responsible for decoding the streaming media data packet to be sent by the streaming media server end, because the media encoding format is numerous,
  • the media data decoding module may be composed of a plurality of different media data decoding modules; the media data encoding module is configured to recalculate the encoded code rate according to the average packet loss rate, and re-encode the streaming media data packet according to the code rate.
  • the media data encoding module may be composed of a plurality of different media data encoding modules; the media data streaming and sending module is responsible for streaming and transmitting the streaming media data packet to the client.
  • the bandwidth detection message packet and the bandwidth detection feedback message packet are non-one-to-one correspondence mechanisms, that is, one bandwidth detection message may return multiple pieces. Bandwidth detection feedback message.
  • a bandwidth adaptive streaming media transmission method of a streaming media service system of the present invention includes the following steps:
  • Step 1 The streaming media server sends a bandwidth detection message packet to the client.
  • Step 2 The streaming media server receives the bandwidth detection feedback packet returned by the client.
  • Step 3 The streaming media server parses the bandwidth detection feedback message packet, and calculates an average packet loss rate within a preset time period;
  • Step 4 The streaming media server determines whether secondary decoding coding is required. If the average packet loss rate is below a preset ratio (the ratio can be configured, for example, 20%), then No need to perform secondary decoding and encoding, perform step 7, otherwise perform step 5;
  • Step 5 If the average packet loss rate is greater than the preset ratio, the streaming media server decodes the sent streaming media packet;
  • Step 6 The streaming media server reduces the encoded code rate according to the average packet loss rate and percentages, and re-encodes the decoded streaming media data packet according to the code rate.
  • Step 7 The foregoing streaming media server sends Streaming data packets.
  • the above preset time can be configured, and in order to reduce the network load, the time should not be set too small.
  • code rate starting code rate X (1 - average packet loss rate).
  • the present invention introduces a secondary decoding and coding mechanism based on bandwidth detection, so that when the communication line is in a bad condition, the code rate of the transmitted streaming media data packet can be dynamically adjusted in time to enable it to Adapt to network bandwidth; when the communication line is in good condition, the streaming code packet is always sent using the default bit rate. In this way, regardless of the status of the communication network, the smooth playback of streaming media packets is not affected.
  • the encoding and decoding module can be provided through the streaming server server plug-in component, or the interface is provided by a third party, the system development difficulty is reduced and the system is improved. Reliability.
  • FIG. 1 is a schematic structural diagram of a streaming media server end according to the present invention
  • Figure 2 is a flow chart of the method of the present invention
  • FIG. 3 is a timing diagram of the method of the present invention. detailed description
  • the architecture of the streaming media server of the present invention includes a control flow and a media data stream, which are respectively indicated by thin lines and black thick lines in the figure:
  • the bandwidth detection message sending module 201 in the process of streaming media playback, initiates a bandwidth detection process, and sends a bandwidth detection message packet to the client;
  • the bandwidth detection feedback message receiving module 101 is configured to receive the bandwidth detection feedback message packet returned by the client, and the bandwidth detection feedback message packet and the bandwidth detection message are required because the streaming media server end needs the client to continuously report the network status.
  • the packet is a non-one-to-one correspondence mechanism, that is, one bandwidth detection message may return multiple bandwidth detection feedback messages;
  • the bandwidth detection feedback message parsing module 102 is configured to parse the bandwidth detection feedback message packet, and take out field information such as a packet loss rate related to bandwidth detection;
  • the bandwidth adaptation logic control module 103 is configured to calculate an average packet loss rate within a predetermined time period, and determine, according to the average packet loss rate, whether secondary decoding coding is required;
  • the media data stream consists of the following components:
  • a media data receiving module 304 which is responsible for reading a streaming media data packet
  • the media data decoding module 303 is responsible for the stream to be sent by the streaming media server end.
  • the media data packet is decoded. Due to the large number of media encoding formats, the media data decoding module may be composed of a plurality of different media data decoding modules;
  • the media data encoding module 302 is configured to recalculate the encoded code rate according to the average packet loss rate, and re-encode the streaming media data packet according to the code rate. Because the media encoding format is numerous, the media data encoding module may be multi-coded.
  • the media data streaming and sending module 301 the streaming media data packet is streamed and sent to the client.
  • the method of the present invention includes the following steps:
  • Step 1 The streaming media server sends a bandwidth detection message packet to the client.
  • Step 2 The streaming media server receives the bandwidth detection feedback packet returned by the client.
  • Step 3 The streaming media server parses the bandwidth detection feedback message packet, and calculates an average packet loss rate within a preset time (for example, 10 seconds);
  • Step 4 The streaming media server determines whether secondary decoding is required. If the average packet loss rate is lower than a preset ratio (for example, 20%), the secondary decoding encoding is not required, and step 7 is performed. Otherwise, Perform step 5;
  • a preset ratio for example, 20%
  • Step 5 If the average packet loss rate is greater than the foregoing preset ratio, the streaming media server decodes the sent streaming media packet.
  • Step 6 The streaming media server reduces the encoded code rate according to the average packet loss rate and percentages, and re-encodes the decoded streaming media data packet according to the code rate; wherein the foregoing code rate is reduced by percentage
  • Step 7 The streaming media server sends the streaming media packet.
  • the timing of the method of the present invention is as follows:
  • Step A The streaming media server sends a bandwidth detection message packet to the client.
  • Step B The client sends a bandwidth detection feedback message packet to the streaming media server, and the feedback message may be multiple;
  • Step C The streaming media server detects the feedback packet according to the bandwidth of the client in a period of time, and calculates an average packet loss rate.
  • Step D The streaming media server performs logical control according to the average packet loss rate to determine whether secondary decoding and encoding are required.
  • Step E The streaming media server performs decoding, and re-encodes according to the average packet loss rate.
  • Step F. The streaming media server sends the re-encoded streaming media data packet.

Abstract

L’invention concerne un système de transmission de support de flux à bande passante adaptative d’un système serveur de support de flux et une méthode pour ceux-ci. Le système comprend un client et un serveur de support de flux et la méthode comprend les étapes suivantes : le serveur de support de flux transmet un paquet message de détection de bande passante au client ; le client transmet un paquet message de réaction de détection de bande passante au serveur de support de flux ; le serveur de support de flux calcule le taux moyen de paquets perdus pendant une certaine période, en fonction des paquets message de réaction de détection de bande passante du client ; le serveur de support de flux réalise un contrôle logique et évalue s’il doit de nouveau décoder et coder en fonction du taux moyen de paquets perdus ; le serveur de support de flux réalise le décodage et le codage en fonction du taux moyen de paquets perdus ; le serveur de support de flux transmet les paquets de support de flux re-codés. Le système et la méthode de la présente invention améliorent la qualité de service du support de flux, réduisent la difficulté de développement du système et en augmentent la fiabilité.
PCT/CN2005/001795 2005-10-31 2005-10-31 Système de transmission de support de flux à bande passante adaptative de système serveur de support de flux et méthode pour ceux-ci WO2007051343A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2005/001795 WO2007051343A1 (fr) 2005-10-31 2005-10-31 Système de transmission de support de flux à bande passante adaptative de système serveur de support de flux et méthode pour ceux-ci
CN2005800524650A CN101352009B (zh) 2005-10-31 2005-10-31 一种流媒体服务系统的带宽自适应流媒体传输系统及方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2005/001795 WO2007051343A1 (fr) 2005-10-31 2005-10-31 Système de transmission de support de flux à bande passante adaptative de système serveur de support de flux et méthode pour ceux-ci

Publications (1)

Publication Number Publication Date
WO2007051343A1 true WO2007051343A1 (fr) 2007-05-10

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CN (1) CN101352009B (fr)
WO (1) WO2007051343A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101449515B (zh) * 2006-05-04 2012-11-14 思杰在线有限责任公司 用于分布系统中带宽自适应n到n通信的方法和系统
WO2013185651A1 (fr) * 2012-07-25 2013-12-19 中兴通讯股份有限公司 Procédé, système et dispositif pour la synchronisation de données de capacité de terminal

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102148747A (zh) * 2010-07-20 2011-08-10 华为软件技术有限公司 媒体流的发送方法及装置
CN102915736B (zh) * 2012-10-16 2015-09-02 广东威创视讯科技股份有限公司 混音处理方法和混音处理系统
HUE043713T2 (hu) * 2013-03-29 2019-09-30 Intel Ip Corp Minõségtudatos sebességillesztési technikák DASH streameléshez
CN103546391A (zh) * 2013-11-04 2014-01-29 腾讯科技（武汉）有限公司 发送数据包的方法、装置及终端

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1518285A (zh) * 2003-01-16 2004-08-04 华为技术有限公司 一种实现流媒体服务的网络带宽检测方法
CN1578463A (zh) * 2003-06-30 2005-02-09 英特尔公司 按照运动图像专家组标准编码的流的代码转换方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1407596B1 (fr) * 2001-07-19 2017-10-25 BRITISH TELECOMMUNICATIONS public limited company Commutation de flux video

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1518285A (zh) * 2003-01-16 2004-08-04 华为技术有限公司 一种实现流媒体服务的网络带宽检测方法
CN1578463A (zh) * 2003-06-30 2005-02-09 英特尔公司 按照运动图像专家组标准编码的流的代码转换方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101449515B (zh) * 2006-05-04 2012-11-14 思杰在线有限责任公司 用于分布系统中带宽自适应n到n通信的方法和系统
WO2013185651A1 (fr) * 2012-07-25 2013-12-19 中兴通讯股份有限公司 Procédé, système et dispositif pour la synchronisation de données de capacité de terminal

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CN101352009B (zh) 2012-11-14
CN101352009A (zh) 2009-01-21

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