WO2013189435A2 - Procédé, système et dispositif de traitement fondés sur une synchronisation d'informations sur des états de lecture - Google Patents

Procédé, système et dispositif de traitement fondés sur une synchronisation d'informations sur des états de lecture Download PDF

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Publication number
WO2013189435A2
WO2013189435A2 PCT/CN2013/082300 CN2013082300W WO2013189435A2 WO 2013189435 A2 WO2013189435 A2 WO 2013189435A2 CN 2013082300 W CN2013082300 W CN 2013082300W WO 2013189435 A2 WO2013189435 A2 WO 2013189435A2
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WIPO (PCT)
Prior art keywords
synchronization
status information
client
playback
synchronization client
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PCT/CN2013/082300
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English (en)
Chinese (zh)
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WO2013189435A3 (fr
Inventor
于涛
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中兴通讯股份有限公司
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Publication of WO2013189435A2 publication Critical patent/WO2013189435A2/fr
Publication of WO2013189435A3 publication Critical patent/WO2013189435A3/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]

Definitions

  • the present invention relates to the field of multimedia communications, and in particular, to a processing method, system, and related apparatus based on synchronization of playback state information. Background technique
  • IPTV Internet TV
  • Copying to another terminal (such as a mobile phone, tablet) for simultaneous playback, or in other distributed multimedia systems, the same video content needs to be displayed on multiple devices, such as Social TV Content recommendation function.
  • the playback state information synchronization is a commonly used synchronization technology, that is, the media packet data is added with the play status information in time sequence, and the media packet data of the same play status information is simultaneously expressed.
  • the media sender as the synchronization server will media.
  • the packet data is sent to multiple receivers, and after being processed by the receiver of the synchronization client, the playback status information such as the actual playing time of each media packet data is uploaded to the synchronization server, and the synchronization server compares the actual playing time of the synchronization client, and selects the delay.
  • the largest synchronization client acts as a synchronous reference client, and then sends the actual playback time (ie, reference time information) of the reference client to each synchronization client.
  • Each synchronization client can obtain the playback time difference between itself and the reference client according to the actual playback time of the received reference client, and then perform corresponding processing (such as pause playback, etc.) to achieve the purpose of synchronous display.
  • the shortcoming of the above-mentioned synchronization method based on the playback state information is that: the synchronization client performs the above-mentioned synchronization process for each media packet data, so that the overhead of reading and writing and synchronization processing of the playback state information and the amount of communication data are large, and resources are wasted. . Moreover, when the playback state reaches the synchronization, the client also needs to continuously report the status information, resulting in waste of resources.
  • the main objective of the embodiments of the present invention is to provide a processing method, system, and related apparatus based on synchronization of playback state information, which can reduce the overhead of synchronization processing and the amount of communication data, and save resources.
  • a processing method based on synchronization of playback state information comprising:
  • the synchronization server determines the playback status information reporting frequency parameter according to the playback status information of each synchronization client, and sends the playback status information reporting frequency parameter to each synchronization client; each synchronization client adjusts and reports the frequency parameter according to the playback status information. Frequency, reporting playback status information to the synchronization server.
  • the playing status information of the synchronization client includes at least one of the following: a current playing time, a playing time offset, and a frequency at which the offset occurs.
  • the synchronization client adjusts the reporting frequency according to the playback status information reporting frequency parameter: the synchronization client only reports the playback status information of the media packet data whose sequence number is an integer multiple of the playback status information reporting frequency parameter, or synchronizes the client.
  • the time interval between the two reports of the terminal is the frequency parameter reported by the playing state information, or the media parameter data of the frequency parameter is reported by the playing state information between the two reporting times of the synchronization client.
  • the method further includes: synchronizing the server to set a time difference threshold; After receiving the play status information of the same media packet data reported by each synchronization client, the synchronization server determines, according to the play status information, a client with the largest play delay from the synchronization clients as a reference synchronization client. And comparing the playing time in the playing state information of the reference synchronization client and the non-reference synchronization client, and obtaining a difference;
  • the synchronization server determines that the difference between the playback time in the playback status information of the reference synchronization client and the at least one non-reference synchronization client is not less than the time difference threshold, the reference synchronization client side reference time information is sent to each synchronization client. ;
  • the non-reference synchronization client performs synchronization processing according to the reference time information.
  • the synchronization server sets a time difference threshold:
  • the synchronization server sets a time difference threshold according to at least one of the following: a code rate of the currently playing media, a frame rate, and a dynamic degree of the picture.
  • the synchronization server sets a time difference threshold of 20 to 100 milliseconds.
  • the method also includes:
  • the synchronization server determines that the difference between the playback time in the playback status information of the reference synchronization client and the at least one non-reference synchronization client is not less than the time difference threshold, the synchronization server increases or maintains the frequency of reporting the playback status information of the synchronization client;
  • the synchronization server determines that the difference between the playback time in the playback status information of the reference synchronization client and each non-reference synchronization client is less than the time difference threshold, the synchronization server reduces or maintains the frequency of reporting the playback status information of the synchronization client.
  • the method also includes:
  • the synchronization server sets a value range for the playback status information reporting frequency parameter by setting a maximum value and a minimum value, where the maximum value indicates the maximum packet data interval or the maximum interval time at which the synchronization client needs to report the playback status information.
  • the minimum value indicates the minimum packet data reporting interval or the minimum interval time at which the synchronization client needs to report the playing status information.
  • the non-reference synchronization client performs synchronization processing according to the reference time information: the non-reference synchronization client acquires a play time difference between itself and the reference synchronization client according to the reference time information, and performs a pause operation according to the play time difference or Slow release operation.
  • the method also includes:
  • the synchronization server determines that the difference between the playback time in the playback status information of the reference synchronization client and each non-reference synchronization client is less than the time difference threshold, and does not send the reference time to each synchronization client.
  • a synchronization server comprising: a first determining module and a first sending module; wherein, the first determining module is configured to determine a play status information reporting frequency parameter according to playing state information of each synchronous client;
  • the first sending module is configured to send the play status information reporting frequency parameter determined by the first determining module to each synchronization client.
  • the synchronization server further includes: a setting module, a receiving module, a second determining module, a comparing module, a determining module, and a second sending module;
  • the setting module is configured to set a time difference threshold
  • the receiving module is configured to receive playing state information of the same media packet data reported by each synchronization client;
  • the second determining module is configured to determine, according to the playing state information received by the receiving module, a client with the largest playing delay from each synchronous client as a reference synchronization client;
  • the comparing module is configured to compare playing time in the playing state information of the reference synchronization client and the non-reference synchronization client, and obtain a difference;
  • the determining module is configured to determine whether a difference between the playing time in the playing state information of the reference synchronization client and the non-reference synchronization client is smaller than a time difference threshold set by the setting module; the second sending module is configured to be in the The determining module determines that the difference between the playing time in the playing state information of the reference synchronization client and the at least one non-reference synchronization client is not less than
  • the time difference threshold is described, the playback time of the reference synchronization client side, that is, the reference time information, is sent to each synchronization client.
  • the setting module is configured to set a time difference threshold according to at least one of the following: a code rate of the current playing media, a frame rate, and a dynamic degree of the picture.
  • the setting module is configured to set a time difference threshold of 20 to 100 milliseconds.
  • a synchronization client includes: a first receiving module and a reporting module; wherein
  • the first receiving module is configured to receive a play status information reporting frequency parameter from the synchronization server;
  • the reporting module is configured to adjust the reporting frequency according to the playback status information reporting frequency parameter, and report the playing status information to the synchronization server.
  • the reporting module is configured to report only the playing status information of the media packet data whose sequence number is an integer multiple of the frequency parameter reported by the playing status information, or control the time interval between the two times to be the playing status information.
  • the frequency parameter is reported, or the media parameter data of the frequency parameter is reported by the play status information between the two reports.
  • the synchronization client further includes: a second receiving module and a synchronization processing module; wherein the second receiving module is configured to receive reference time information from the synchronization server; the synchronization processing module is configured to be configured according to the reference time information Obtaining a play time difference between itself and the reference synchronization client, and performing a pause operation or a slow release operation according to the play time difference.
  • a processing system based on playback state information synchronization comprising a synchronization server and at least two synchronization clients; wherein
  • the synchronization server is the synchronization server described above;
  • the synchronization client is the synchronization client described above.
  • the embodiment of the invention provides a method, a system and a related device for processing synchronization based on the playing state information.
  • the synchronization server determines the playing state information reporting frequency parameter according to the playing state information of each synchronous client, and sends the playing state information reporting frequency parameter. For each sync client; Each synchronization client adjusts the reporting frequency according to the playback status information reporting frequency parameter, and reports the playback status information to the synchronization server.
  • the synchronization server controls the frequency of the playback status information of the media packet data reported by the synchronization client according to the actual situation, so that when the synchronization status is good, the synchronization client does not need to perform execution on each media packet data.
  • the above-mentioned synchronization process is performed, and the reporting requirement is reduced in the case where the playback synchronization remains stable. Therefore, the overhead of the synchronization processing and the amount of communication data can be reduced, and resources are saved.
  • FIG. 1 is a flowchart of a method for processing synchronization based on playback state information according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a synchronization server according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of another synchronization server according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a synchronization client according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of another synchronization client according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of Embodiment 1 of the present invention
  • FIG. 8 is a schematic flowchart of Embodiment 3 of the present invention. detailed description
  • the synchronization server determines the playback status information reporting frequency parameter according to the playback status information of each synchronization client, and sends the playback status information reporting frequency parameter to each synchronization client; each synchronization client plays according to the synchronization client.
  • the status information reports the frequency parameter adjustment reporting frequency, and reports the playing status information to the synchronization server.
  • FIG. 1 is a flowchart of a method for processing synchronization based on playback state information according to an embodiment of the present invention. As shown in FIG. 1, the method includes:
  • Step 101 The synchronization server determines the playback status information reporting frequency parameter according to the playback status information of each synchronization client, and sends the playback status information reporting frequency parameter to each synchronization client.
  • the play status information may include a current play time, a play time offset, a frequency at which an offset occurs, and the like. If the frequency at which the offset occurs gradually becomes higher, the synchronization server adjusts the reported frequency parameter to improve the reporting frequency of the synchronization client.
  • Step 102 The synchronization client adjusts the reporting frequency according to the playback status information reporting frequency parameter, and reports the playback status information to the synchronization server.
  • the synchronization server adjusts the reporting frequency parameter to improve the frequency of reporting the playback status information of the synchronization client.
  • the offset gradually becomes smaller, reaches a certain value, and can be maintained for a period of time, the synchronization client reporting frequency can be reduced.
  • the playing state information of the synchronization client may include one or more of the following: a current playing time, a playing time offset, and a frequency at which the offset occurs. If the RTP/RTCP protocol is used, the playback status information of the synchronization client may further include: an NTP timestamp that receives the RTP packet, an RTP timestamp that receives the RTP packet, and a playback time of the RTP packet.
  • the synchronization client adjusts the reporting frequency according to the playback status information reporting frequency parameter: the synchronization client only reports the playback status information of the media packet data whose sequence number is an integer multiple of the playback status information reporting frequency parameter,
  • the playback status information reporting frequency parameter is a positive integer; or, the time interval between the two reports of the synchronization client is the playback status information reporting frequency parameter, where the playback status information reporting frequency parameter is a time parameter; or
  • the playback status information reports the frequency parameter media packet data between the two reports of the synchronization client.
  • the playback status information reporting frequency parameter is a positive integer.
  • the synchronization server may send the play status information reporting frequency parameter to each synchronization client in the following form:
  • the synchronization server uses a positive integer field with a value of N (N>0) in the report of the delivery reference time information to notify the synchronization client.
  • N the number of the media packet data
  • the play time information of the packet is reported; if the field is empty or 0, the message is continuously sent.
  • the value of N is adjusted by the synchronization server according to the current playing state information. If the current network state is poor, and the playback time offset between the synchronization client and the reference terminal is gradually increased, the value of N is decreased. Increase the frequency of reporting the playback status information of the synchronization client; otherwise, increase the value of N.
  • N in order to limit the value of N to be too large or too small, thereby causing data loss or accuracy to achieve the desired effect, it is necessary to limit the value range of N, and then it is necessary to determine a maximum value and a minimum value of N.
  • the maximum and minimum values are generally set according to network conditions, video sync difference, and video frame rate. In general, if N is a positive integer, you can choose a range of 1-100.
  • N can also be used to represent a time parameter, that is, N can be a millisecond (ms) unit, for example, N is equal to 200 ms, which is expressed as reporting data once every 200 milliseconds of the synchronization client.
  • ms millisecond
  • the synchronization client after receiving the reference time information sent by the synchronization server, extracts a field of a positive integer N, and adjusts the frequency of the media packet data playing state information.
  • N When the sequence number of the media packet data is an integer multiple of N, The playing status information of the media packet data is reported; if the field is empty or 0, the playing status information of each media packet data is continuously reported.
  • the synchronization server sets a time difference threshold
  • the method further includes:
  • the synchronization server After receiving the play status information of the same media packet data reported by each synchronization client, the synchronization server determines, according to the play status information, a client with the largest play delay from the synchronization clients as a reference synchronization client. And comparing the playing time in the playing state information of the reference synchronization client and the non-reference synchronization client, and obtaining a difference;
  • the synchronization server determines that the difference between the playback time in the playback status information of the reference synchronization client and the at least one non-reference synchronization client is not less than the time difference threshold, and sends the playback time of the reference synchronization client side to each synchronization client. That is, the reference time information is determined; determining that the difference between the playback time in the playback status information of the reference synchronization client and each non-reference synchronization client is less than When the time difference threshold is described, the reference time information is not sent to each synchronization client;
  • the non-reference synchronization client performs synchronization processing according to the reference time information.
  • the difference threshold may be dynamically set by the synchronization server according to one or more of the following: one or more of the following: the code rate of the currently played content, the frame rate, the dynamic degree of the picture, and the like are dynamically set.
  • the time difference threshold is generally 20-100 milliseconds.
  • the method further includes:
  • the synchronization server determines that the difference between the playback time in the playback status information of the reference synchronization client and the at least one non-reference synchronization client is not less than the time difference threshold, and increases or maintains the frequency of reporting the playback status information of the synchronization client;
  • the synchronization server determines that the difference between the playback time in the playback status information of the reference synchronization client and each non-reference synchronization client is less than the time difference threshold, and reduces or maintains the frequency of reporting the playback status information of the synchronization client.
  • the synchronization server sets a value range for the reporting frequency parameter by setting a maximum value and a minimum value, where the maximum value indicates a maximum packet data interval or a maximum interval time at which the synchronization client needs to report the playback state information.
  • the minimum value indicates the minimum packet data reporting interval or the minimum interval time at which the synchronization client needs to report the playback status information.
  • the non-reference synchronization client performs synchronization processing according to the reference time information: the non-reference synchronization client obtains a play time difference between itself and the reference synchronization client according to the reference time information, according to the play time difference. Perform a pause or slow release operation. Specifically, after receiving the reference time information sent by the synchronization server, the non-reference synchronization client may know the time when the reference synchronization client plays a certain media packet data, and the time is the same as the self-playing The time comparison of a media packet data obtains a difference in play time between itself and the reference synchronization client, and then performs synchronization processing according to the play time difference, including but not limited to pause, slow play, and the like.
  • the synchronization server controls the synchronization client to report the frequency by using the playback status information reporting frequency parameter, and the synchronization server can independently apply the scheme for controlling the reference frequency information according to the time difference threshold. Can be combined with the application, can achieve the purpose of reducing the overhead of synchronization processing and communication data, saving resources.
  • the embodiment of the present invention further provides a synchronization server.
  • the synchronization server includes: a first determining module 21 and a first sending module 22;
  • the first determining module 21 is configured to determine, according to the playing state information of each synchronization client, the playing state information reporting frequency parameter;
  • the first sending module 22 is configured to send the play status information reporting frequency parameter determined by the first determining module 21 to each synchronization client.
  • the synchronization server further includes: a setting module 23, a receiving module 24, a second determining module 25, a comparing module 26, a determining module 27, and a second sending module 28;
  • the setting module 23 is configured to set a time difference threshold
  • the receiving module 24 is configured to receive playing state information of the same media packet data reported by each synchronization client;
  • the second determining module 25 is configured to determine, according to the playing state information received by the receiving module 24, a client with the largest playing delay from each synchronous client as a reference synchronization client; the comparing module 26, configured Comparing the playing time in the playing state information of the reference synchronization client and the non-reference synchronization client, and obtaining a difference;
  • the determining module 27 is configured to determine whether a difference between the playing time in the playing state information of the reference synchronization client and the non-reference synchronization client is less than a time difference threshold set by the setting module;
  • the second sending module 28 is configured to: when the determining module 27 determines that the difference between the playing time in the playing state information of the reference synchronization client and the at least one non-reference synchronization client is not less than the time difference threshold, Each synchronization client sends the playback time of the reference synchronization client side, that is, the reference time information.
  • the setting module 23 is specifically configured to set a time difference threshold according to one or more of the following: a code rate of the currently playing media, a frame rate, and a dynamic degree of the picture.
  • the setting module is specifically configured to set a time difference threshold of 20 to 100 milliseconds.
  • the first determining module, the setting module, the second determining module, the comparing module, and the determining module may be configured by a central processing unit (CPU) and a digital signal in a synchronization server.
  • the processor DSP, Digital Signal Processor
  • FPGA programmable logic array
  • the first sending module and the second sending module may be implemented by a transceiver in a synchronization server.
  • the embodiment of the present invention further provides a synchronization client.
  • the synchronization client includes: a first receiving module 41 and a reporting module 42;
  • the first receiving module 41 is configured to receive a play status information reporting frequency parameter from the synchronization server;
  • the reporting module 42 is configured to adjust the reporting frequency according to the playback status information reporting frequency parameter, and report the playing status information to the synchronization server.
  • the upper module 42 is configured to report only the playing status information of the media packet data whose sequence number is an integer multiple of the frequency parameter reported by the playing status information, or to control the time interval between the two reporting times. And reporting the frequency parameter for the playing status information, or controlling the playback status information to report the frequency parameter media packet data between the two reporting intervals.
  • the synchronization client further includes: a second receiving module 43 and a synchronization processing module 44;
  • the second receiving module 43 is configured to receive reference time information from the synchronization server;
  • the synchronization processing module 44 is configured to acquire a play time difference between itself and the reference synchronization client according to the reference time information, and perform a pause operation or a slow release operation according to the play time difference.
  • the reporting module and the synchronization processing module may be implemented by a CPU, DSP or FPGA in the synchronization client; the first receiving module and the second receiving module may be implemented by a transceiver in the synchronization client.
  • the embodiment of the present invention further provides a processing system based on synchronization of playback state information, where the system includes a synchronization server and at least two synchronization clients;
  • the synchronization server is the synchronization server described above;
  • the synchronization client is the synchronization client described above.
  • FIG. 6 is a schematic flowchart of the embodiment. As shown in Figure 6, the process includes:
  • Step 601 The synchronization server sets the time difference threshold.
  • Step 602 The media server delivers the media packet data to each synchronization client.
  • Step 603 Each synchronization client plays the media packet data and sends the playback status information to the synchronization server.
  • Step 604 The synchronization server determines the reference synchronization client, and compares the play time difference between the non-reference synchronization client and the reference synchronization client. If the play time difference exceeds the time difference threshold, step 605 is performed; otherwise, the synchronization server does not send the reference time value. Go back to step 603.
  • Step 605 The synchronization server delivers the reference time information and the playback status information to report the frequency parameter to the synchronization client.
  • Step 606 The synchronization client adjusts the broadcast time information sending frequency according to the playback status information reporting frequency parameter, and the synchronization client only reports the playback status information of the media packet data whose sequence number meets the reporting frequency parameter, and the non-reference synchronization client according to the The reference time information is described for synchronization adjustment. Go back to step 603.
  • FIG. 7 is a schematic flowchart of Embodiment 2 of the present invention. As shown in FIG. 7, the process includes:
  • Step 701 The setting module of the synchronization server sets a time difference threshold according to the current content synchronization condition.
  • Step 702 Play the media stream.
  • Step 703 Each synchronization client reports packet playback time information to the synchronization server one by one.
  • Step 705 The judging module of the synchronization server determines whether the time difference between the broadcast time of the B terminal and the A terminal reaches the previously set time difference threshold. If not, the synchronization server does not process; if yes, step 706 is performed.
  • Step 706 The synchronization server sends the reference time information, that is, refers to the play time information of the terminal A terminal, and adds a field with a positive integer N to the reference time information sent by the synchronization client, and informs the synchronization client that the sequence number of the media packet data is When the integer multiple of N is used, the playback time information of the media packet data is reported; if the field is empty or 0, the synchronization client continuously reports the playback time information of each media packet data.
  • N is adjusted by the synchronization server according to the current synchronization state. If the current network status is poor, and the non-synchronization occurs frequently, N is set to a smaller value; conversely, a larger value can be set.
  • the table It indicates that the playback status information needs to be reported once every 1 packet data, and it needs to be reported once every 20 packet data. The value cannot exceed this set range unless the sync server adjusts this report range.
  • Step 707 After receiving the reference time information, the B terminal can calculate the play time difference with the reference terminal A terminal, and adjust the play accordingly (including but not limited to pause play, slow play, etc.), and extract the integer N at the same time.
  • the field of the media packet data is reported when the sequence number of the media packet data is an integer multiple of N; if the field is empty or 0, the play time information of each media packet data is continuously reported;
  • the A terminal after receiving the reference time information delivered by the A terminal, the A terminal does not perform synchronization processing because it is itself the reference terminal.
  • the field of the integer N is extracted, and the playing time information of the media packet data is reported when the sequence number of the media packet data is an integer multiple of N; if the field is empty or 0, the A terminal continuously reports the playing time of each media packet data. information.
  • FIG. 8 is a schematic flowchart of a third embodiment of the present invention. As shown in FIG. 8, the embodiment is similar to the second embodiment. The difference is that the value of N in this embodiment is a time parameter, for example, when setting When it is 200ms, it means that the data is reported every 200 milliseconds. As shown in Figure 8, the process includes:
  • Step 801 The setting module of the synchronization server sets a time difference threshold according to the current content synchronization condition.
  • Step 802 Play the media stream.
  • Step 803 Each synchronization client reports packet playback time information to the synchronization server one by one.
  • Step 805 The judging module of the synchronization server determines whether the time difference between the broadcast time of the B terminal and the A terminal reaches the previously set time difference threshold. If not, the synchronization server does not process; if yes, execute Step 806.
  • Step 806 The synchronization server sends the reference time information, that is, refers to the play time information of the terminal A terminal, and adds a field with a positive integer N to the reference time information, where N represents a time parameter, and the synchronization client is notified to the synchronization client.
  • the time parameter N is used to report the playing time information of each media packet data. If the field is empty or 0, the synchronization client continuously reports the playing time information of each media packet data.
  • N is adjusted by the synchronization server according to the current synchronization state. If the current network status is poor, and the non-synchronization occurs frequently, N is set to a smaller value; conversely, a larger value can be set.
  • the value range of N is (1, 20)
  • the playback status information needs to be reported once every 1 packet data, and the maximum need to report every 20 packet data. once. The value cannot exceed this set range unless the sync server adjusts this report range.
  • Step 807 After receiving the reference time information, the B terminal can calculate the play time difference with the reference terminal A terminal, and adjust the play accordingly (including but not limited to pause play, slow play, etc.), and extract the integer N at the same time.
  • the field, the parameter N reports the playback time information of the media packet data; if the field is empty or 0, the playback time information of each media packet data is continuously reported, and the reference time information received by the A terminal is received. After that, since it is itself a reference terminal, it is not synchronized. At the same time, the field of the integer N is extracted, and the playing time information of the media packet data is reported every time parameter N; if the field is empty or 0, the A terminal continuously reports the playing time information of each media packet data.
  • the embodiment of the invention can reduce the overhead in the synchronization process and improve the synchronization efficiency by controlling the sending and receiving of the synchronization data and the frequency between the synchronization client and the synchronization server.

Abstract

L'invention concerne un procédé de traitement fondé sur une synchronisation d'informations sur des états de lecture, comprenant les étapes suivantes : un serveur de synchronisation détermine des paramètres de fréquence d'indication d'informations sur des états de lecture en fonction d'informations sur des états de lecture de clients de synchronisation, et envoie ces paramètres de fréquence d'indication d'informations sur des états de lecture aux clients de synchronisation ; les clients de synchronisation ajustent les fréquences d'indication en fonction des paramètres de fréquence d'indication d'information sur des états de lecture et transmettent les informations sur des états de lecture au serveur de synchronisation. Cette invention concerne également un système de traitement, un serveur de synchronisation et un client de synchronisation fondés sur une synchronisation d'informations sur des états de lecture. Selon l'invention, un serveur de synchronisation commande, en fonction d'une situation concrète, une fréquence d'indication d'informations sur des états de lecture concernant les paquets multimédia d'un client de synchronisation, de sorte que dans de bonnes conditions de synchronisation, il ne soit pas nécessaire pour le client de synchronisation de mettre en œuvre un processus de synchronisation pour chacune des données des paquets multimédia. De ce fait, il est possible de réduire les surcharges et le volume des données de communication du processus de synchronisation, ainsi que d'économiser des ressources.
PCT/CN2013/082300 2012-12-17 2013-08-26 Procédé, système et dispositif de traitement fondés sur une synchronisation d'informations sur des états de lecture WO2013189435A2 (fr)

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CN105847310A (zh) * 2015-01-13 2016-08-10 中国移动通信集团江苏有限公司 一种确定位置的方法及装置
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