WO2015117355A1 - Procédé et dispositif pour réaliser une diffusion multimédia d'un terminal - Google Patents

Procédé et dispositif pour réaliser une diffusion multimédia d'un terminal Download PDF

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Publication number
WO2015117355A1
WO2015117355A1 PCT/CN2014/088659 CN2014088659W WO2015117355A1 WO 2015117355 A1 WO2015117355 A1 WO 2015117355A1 CN 2014088659 W CN2014088659 W CN 2014088659W WO 2015117355 A1 WO2015117355 A1 WO 2015117355A1
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WO
WIPO (PCT)
Prior art keywords
streaming media
information
terminal
peer
receiving terminal
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PCT/CN2014/088659
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English (en)
Chinese (zh)
Inventor
陈飞雄
郭庆吉
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中兴通讯股份有限公司
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Publication of WO2015117355A1 publication Critical patent/WO2015117355A1/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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/632—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing using a connection between clients on a wide area network, e.g. setting up a peer-to-peer communication via Internet for retrieving video segments from the hard-disk of other client devices

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for implementing multimedia broadcasting of a terminal.
  • Voice and video are common communication information. They have achieved rapid development in the 3G and 4G eras, and have realized long-distance transmission of voice data and video data through mobile networks.
  • VOIP Voice over Internet Protocol
  • VOIP Voice over Internet Protocol
  • the sharing of voice and video needs to be realized in some local areas.
  • the teacher needs to deliver the voice to each listener, and also needs to share the content displayed by the PowerPoint.
  • the most important thing is that Transmit voice data and video data in real time. In this case, if the data is transmitted in real time through the mobile network, the time required for transmitting the data is long and the amount of data is large, so the cost is high.
  • the embodiments of the present invention provide a method and an apparatus for implementing multimedia broadcasting of a terminal.
  • a method for implementing multimedia broadcasting of a terminal includes the following steps:
  • the transmitting terminal processes the captured multimedia information into a streaming media
  • the transmitting terminal broadcasts the streaming media to the receiving terminal, and the streaming media is used to play the multimedia information in the streaming media after being received by the receiving terminal.
  • the transmitting terminal processing the captured multimedia information into the streaming media includes:
  • the captured multimedia time information and the picture time stamp information are processed into a streaming media according to a ratio of 1:N;
  • N is a positive integer.
  • the establishing a peer-to-peer wireless local area network includes:
  • the transmitting terminal and the receiving terminal are connected to a peer-to-peer wireless local area network by a wireless router, and the streaming media of the transmitting terminal is broadcasted to a receiving terminal in the local area network via a wireless router.
  • a method for implementing terminal multimedia broadcasting including the following steps:
  • the receiving terminal After receiving the streaming media, the receiving terminal plays the multimedia information in the streaming media.
  • the method further includes:
  • the voice is filled with a voiceless empty packet of the same length of time
  • an apparatus for implementing multimedia broadcasting of a terminal including:
  • a processing module configured to process, by the sending terminal, the captured multimedia information into a streaming media
  • the broadcast module is configured to broadcast, by the sending terminal, the streaming media to the receiving terminal, where the streaming media is used by the receiving terminal to play the multimedia information in the streaming media.
  • the processing module includes:
  • Adding a timestamp unit configured to add voice timestamp information and picture timestamp information to the captured multimedia information
  • the processing unit is configured to process the captured multimedia information into a streaming media according to a ratio of 1:N to the added voice timestamp information and the picture timestamp information;
  • N is a positive integer.
  • the establishing module establishing the peer-to-peer wireless local area network includes:
  • the transmitting terminal and the receiving terminal are connected to a peer-to-peer wireless local area network by a wireless router, and the streaming media of the transmitting terminal is broadcasted to a receiving terminal in the local area network via a wireless router.
  • an apparatus for implementing multimedia broadcasting of a terminal including:
  • a receiving module configured to receive, by the receiving terminal, a streaming media broadcast by the sending terminal
  • the playing module is configured to play the multimedia information in the streaming media after the receiving terminal receives the streaming media.
  • the playing module further includes:
  • Parsing the subunit configured to parse the received streaming media to obtain the streaming media Multimedia information
  • the determining subunit is configured to determine, according to the obtained multimedia information, whether the voice information and the picture information in the multimedia information are lost;
  • the compensation subunit is configured to copy the previous picture information to compensate if the result of the determination is that the picture information is lost.
  • the embodiment of the present invention can use the intelligent terminal to capture voice and picture information according to different needs, and form similar streaming media data or a separate voice stream, so that it can be shared to each user in the local area network, and can solve internal communication and information of most people. Delivered without the need to add any hardware costs, with a wide range of application scenarios.
  • FIG. 1 is a flowchart of a method for implementing multimedia broadcasting of a terminal according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another method for implementing multimedia broadcasting of a terminal according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an apparatus for implementing multimedia broadcasting of a terminal according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of another apparatus for implementing multimedia broadcasting of a terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a first topology structure of a terminal according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a second topology structure of a terminal according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a transmitting terminal according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a receiving terminal according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of time collection of voice and picture data according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of an audio and video data transmission package according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for implementing multimedia broadcasting of a terminal according to an embodiment of the present invention. As shown in FIG. 1 , the method includes the following steps:
  • Step S101 Establish a peer-to-peer wireless local area network including a transmitting terminal and a receiving terminal;
  • the establishing a peer-to-peer wireless local area network includes: connecting the sending terminal and the receiving terminal to a peer-to-peer wireless local area network by using a wireless router, and causing the streaming media of the sending terminal to broadcast to a receiving terminal in the local area network via a wireless router .
  • Step S102 The transmitting terminal processes the captured multimedia information into a streaming media.
  • Step S103 The transmitting terminal broadcasts the streaming media to the receiving terminal, so that the receiving terminal plays the multimedia information in the streaming media at the receiving terminal after receiving the streaming media.
  • the processing, by the sending terminal, the captured multimedia information into the streaming media includes: adding a voice timestamp information and a picture timestamp information to the captured multimedia information; and adding the added voice timestamp information and the image timestamp information
  • the captured multimedia information is processed into a streaming medium in a ratio of 1:N; wherein the N is a positive integer.
  • FIG. 2 is a flowchart of another method for implementing multimedia broadcasting of a terminal according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:
  • Step S201 Establish a peer-to-peer wireless local area network including the sending terminal and the receiving terminal;
  • Step S202 The receiving terminal receives the streaming media broadcast by the sending terminal.
  • Step S203 After receiving the streaming media, the receiving terminal plays multimedia information such as voice and picture in the streaming media.
  • the method further includes: parsing the received streaming media to obtain multimedia information in the streaming media; and determining, according to the obtained multimedia information, And whether the voice information and the picture information in the multimedia information are lost; if the result of the judgment is that the voice information is lost, the voiceless empty packet of the same length of time, that is, an empty packet not including the voice information is filled; If the result of the judgment is that the picture information is lost, the previous picture information is copied for compensation.
  • FIG. 3 is a schematic diagram of an apparatus for implementing multimedia broadcasting of a terminal according to an embodiment of the present invention. As shown in FIG. 3, the method includes:
  • the establishing module 301 is configured to establish a peer-to-peer wireless local area network including the sending terminal and the receiving terminal;
  • the processing module 302 is configured to process, by the sending terminal, the captured multimedia information into a streaming media
  • the broadcast module 303 is configured to broadcast, by the sending terminal, the streaming media to the receiving terminal, where the streaming media is used by the receiving terminal to play the multimedia information in the streaming media.
  • the processing module 302 includes:
  • Adding a timestamp unit configured to add voice timestamp information and picture timestamp information to the captured multimedia information
  • the processing unit is configured to process the captured multimedia information into a streaming media according to a ratio of 1:N to the added voice timestamp information and the picture timestamp information; wherein the N is a positive integer.
  • the establishing a peer-to-peer wireless local area network includes: connecting the sending terminal and the receiving terminal to a peer-to-peer wireless local area network by using a wireless router, and causing the streaming media of the sending terminal to be broadcasted to the local area network via a wireless router.
  • Receiving terminal receiving terminal.
  • FIG. 4 is a schematic diagram of another apparatus for implementing multimedia broadcasting of a terminal according to an embodiment of the present invention. As shown in FIG. 4, the method includes:
  • the establishing module 401 is configured to establish a peer-to-peer wireless local area including the transmitting terminal and the receiving terminal network;
  • the receiving module 402 is configured to receive, by the receiving terminal, the streaming media broadcast by the sending terminal;
  • the playing module 403 is configured to play the multimedia information in the streaming media after the receiving terminal receives the streaming media.
  • the play module 403 includes:
  • the parsing subunit is configured to parse the received streaming media to obtain multimedia information in the streaming media
  • the determining subunit is configured to determine, according to the obtained multimedia information, whether the voice information and the picture information in the multimedia information are lost;
  • the compensation subunit is configured to copy the previous picture information to compensate if the result of the determination is that the picture information is lost.
  • the embodiment of the present invention needs to construct a peer-to-peer LAN node regardless of whether the terminal is a Wi-Fi hotspot. To use, it is necessary to ensure that each intelligent terminal in the local area network has UDP broadcast or multicast function, and the specific peer-to-peer network mode is shown in FIG. 5 and FIG. 6.
  • FIG. 5 is a schematic diagram showing a first topology of a terminal according to an embodiment of the present invention.
  • a Wi-Fi hotspot is a dedicated wireless cat, and other terminals are connected to the local area network, and UDP broadcast or multicast of all terminals passes.
  • the Wi-Fi wireless router broadcasts to each terminal of the local area network, thereby constituting a local area network in which all terminals are peers.
  • FIG. 6 is a schematic diagram showing a second topology structure of a terminal according to an embodiment of the present invention.
  • a Wi-Fi hotspot is a mobile terminal
  • other mobile terminals are connected to the local area network
  • the Wi-Fi hotspot mobile terminal is used as a router.
  • the Wi-Fi hotspot mobile terminal is not equivalent to other LAN terminals, because UDP broadcast or multicast cannot be implemented on each terminal in one way.
  • Terminals that are hotspots and non-hotspot terminals must be treated separately.
  • the terminal is used as a hotspot, there are many parameters to be set.
  • the hotspot parameters need to be taken into consideration to realize UDP broadcast or multicast, and non-hotspot terminals can be processed as usual. After doing so, all terminals that implement the topology are peer-to-peer.
  • FIG. 7 is a schematic structural diagram of a transmitting terminal according to an embodiment of the present invention. As shown in FIG. 7, the method includes a voice and video capturing module 701, a data pre-processing module 702, and a data sending module 703.
  • the voice and video capture module 701 is configured to capture a frame picture required by the audio stream and the video stream by using the smart terminal, that is, configured to capture voice and screen picture information.
  • the voice and video capture module 701 includes: a screen picture capture sub-module and a voice capture sub-module;
  • the screen picture capturing sub-module is configured to collect a screen image on the terminal every short period of time, save it in a video buffer, and add timestamp information as a data source of a subsequent video frame;
  • the voice capture sub-module is configured to continuously capture the voice information received by the terminal for a period of time and save the voice information to the voice buffer, and the start time stamp and the end time stamp of the continuous time need to match the screen image collection time stamp. That is, timing alignment is required.
  • the data pre-processing module 702 is configured to continuously capture video synthesis processing of the screen picture and the voice, that is, store the screen picture information and the voice information in a transmission buffer in a certain proportion. That is to say, the continuous frame picture is synthesized into a video stream, and then according to the timing alignment, the audio stream is added, the complete stream media is synthesized, and the data source of the streaming media server is simply mixed, and the audio stream and the video stream are simply mixed and transmitted. Put the data into the UDP communication send buffer in order, as shown in Figure 9.
  • the data sending module 703 is configured to sequentially take out the buffer on the basis of the peer-to-peer network.
  • the data is broadcast or multicast through the UDP client, so that each terminal in the LAN can receive the data. That is to say, the data is taken out from the transmission buffer, and UDP broadcast or multicast is performed on the local area network. Since there is no retransmission mechanism in UDP broadcast, there is no buffer congestion behavior, that is, the amount of data written in the transmit buffer is larger than the amount of transmitted data, resulting in buffer overflow.
  • FIG. 8 is a schematic structural diagram of a receiving terminal according to an embodiment of the present invention. As shown in FIG. 8, the data receiving module 801, the data analyzing module 802, and the data playing module 803 are included.
  • the data receiving module 801 is configured to receive UDP broadcast or multicast data through the UDP server, and store the data in the receiving buffer; that is, the data received by the UDP broadcast exists in the receiving buffer, and distinguishes the picture packet and Voice packets, check the proportional relationship between picture packets and voice packets, and compensate or fill them.
  • the data parsing module 802 is configured to parse the data into a voice stream and a video stream according to a known fixed ratio. Because it is UDP communication, it may cause a certain packet to be lost and needs some processing. Since the transmitting end is N picture packets and one voice packet are transmitted in proportion, once the receiving ratio is found to be not N:1, compensation or empty packet filling processing may be performed. If the picture is lost, you can copy the most recent picture received before compensation processing, which has little effect on the user experience. If it is a voice packet loss, it is not suitable for compensation processing, and an empty packet with the same length of time and no sound is filled to ensure the timing alignment of the picture and the voice data stream, and finally the data is divided into voice streams according to the N:1 ratio. And video streaming.
  • the data playing module 803 is configured to display the received audio and video data, that is, separately play the parsed audio stream and the video stream.
  • embodiments of the present invention further include a parameter configuration module configured to capture parameter configurations of operation and data transfer operations, and module flow control. That is to say, according to different application scenarios and network topology structures, it is determined whether the data to be transmitted is a separate voice stream, a separate video stream, or a synthesized audio and video stream; and parameter configuration for capturing voice and video frame pictures.
  • FIG. 10 is a schematic diagram of an audio and video data transmission package provided by an embodiment of the present invention, as shown in FIG. 10
  • the ratio of picture packets and voice packets on the sender side is N:1, that is, in a FIFO, there is one voice packet after every N picture packets.
  • the picture packet and voice packet at the receiving end should also be N:1. How to maintain the N:1 ratio in the case of packet loss has been described above.
  • the required voice information and the continuous picture are first saved to the FIFO (First Input First Output) according to the timing alignment manner, and UDP broadcast or multicast is shared in the local area network to each end user in the local area network.
  • FIFO First Input First Output
  • UDP broadcast or multicast is shared in the local area network to each end user in the local area network.
  • the invention adopts the Wi-Fi local area network wireless communication system, can realize real-time communication of voice and video, and does not have any mobile network communication cost, thereby improving the user experience.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • the computer program instructions can be provided to a processor of a general purpose computer, a special purpose computer, an embedded processor, or other programmable data processing device to produce a machine such that the instructions are executed by a processor or other programmable data processing device.
  • These computer program instructions can also be stored in a bootable computer or other programmable data processing
  • the apparatus is readable in a computer readable memory in a particular manner such that instructions stored in the computer readable memory produce an article of manufacture comprising instruction means implemented in one or more flows and/or block diagrams of the flowchart The function specified in the box or in multiple boxes.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps that are configured to implement the functions specified in one or more blocks of the flowchart or in a block or blocks of the flowchart.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

La présente invention concerne un procédé et un dispositif pour réaliser une diffusion multimédia d'un terminal, qui se rapportent au domaine technique des communications. Le procédé comprend les étapes suivantes consistant : à établir un réseau local sans fil entre homologues comprenant un terminal d'envoi et un terminal de réception ; à traiter, par le terminal d'envoi, des informations multimédias capturées dans un média diffusé en continu ; et à diffuser, par le terminal d'envoi, le média diffusé en continu sur le terminal de réception, le média diffusé en continu étant utilisé pour lire des informations multimédias dans le média diffusé en continu après que le terminal de réception reçoit le média diffusé en continu
PCT/CN2014/088659 2014-08-22 2014-10-15 Procédé et dispositif pour réaliser une diffusion multimédia d'un terminal WO2015117355A1 (fr)

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CN201410419099.9A CN105357590A (zh) 2014-08-22 2014-08-22 一种实现终端多媒体广播的方法及装置
CN201410419099.9 2014-08-22

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CN103561281A (zh) * 2013-10-25 2014-02-05 Tcl集团股份有限公司 一种多媒体数据共享的方法及装置
CN103826208A (zh) * 2014-01-22 2014-05-28 深圳市同洲电子股份有限公司 一种无线交互的方法、移动终端及系统

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CN110049531A (zh) * 2019-04-22 2019-07-23 Oppo广东移动通信有限公司 网络资源共享方法及相关装置
CN110049531B (zh) * 2019-04-22 2021-05-04 Oppo广东移动通信有限公司 网络资源共享方法及相关装置

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