WO2016116062A1 - 多媒体内容的发送、接收方法及装置以及家庭网关 - Google Patents

多媒体内容的发送、接收方法及装置以及家庭网关 Download PDF

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WO2016116062A1
WO2016116062A1 PCT/CN2016/071724 CN2016071724W WO2016116062A1 WO 2016116062 A1 WO2016116062 A1 WO 2016116062A1 CN 2016071724 W CN2016071724 W CN 2016071724W WO 2016116062 A1 WO2016116062 A1 WO 2016116062A1
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multimedia
multimedia content
home gateway
terminal
capability
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PCT/CN2016/071724
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English (en)
French (fr)
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张志刚
李鸳
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中兴通讯股份有限公司
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Publication of WO2016116062A1 publication Critical patent/WO2016116062A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols

Definitions

  • the present invention relates to the field of communications, and in particular to a method and device for transmitting and receiving multimedia content and a home gateway.
  • IP Internet Protocol
  • IPTV Internet Protocol Television
  • OTT Over The Top
  • IPTV system is defined as a service that transmits video services through a quality and security-guaranteed IP network that can be controlled. Its typical characteristics are closely related to operators and networks, and can control network, high quality and security assurance.
  • the operator's access-related customer, OTT's original intention is to superimpose the service on the operator's network (video service is only one of them), typical service characteristics are independent of network operators and access, but with OTT Development, OTT has been widely borrowed by operators and has become synonymous with the transmission of video services over uncontrolled public networks.
  • IPTV needs to be transmitted over a network with proprietary guarantees
  • OTT is transmitted through the public's best-effort Internet.
  • both require a digital copyright protection mechanism from the content source on the central office side to the playback terminal side.
  • its set-top box (Set Top Box, STB for short)/OTT box has a digital copyright protection module alone, which has high cost; and each playback terminal directly communicates with the system side office.
  • the billing/authentication process is more complicated.
  • the IPTV mode needs to provide an access-type home gateway Home Gateway and an STB set-top box; and the home internal device corresponding to the OTT mode requires an access-type home gateway Home Gateway and an OTT set-top box.
  • the same home-user mode occurs, multiple STB/OTT boxes need to be added, corresponding to multiple accounts; the implementation at this time is not economical, and the operation and maintenance process is also complicated.
  • an embodiment of the present invention provides a method and device for transmitting multimedia content, and a home gateway.
  • a method for transmitting multimedia content including: receiving at a home gateway After obtaining the multimedia content delivered by the network side device, acquiring the multimedia capability of the terminal in the local area network LAN connected to the home gateway; and according to the multimedia capability, the multimedia content is protected by the digital transmission content on the Internet protocol DTCP- The IP protocol is sent to the terminal.
  • the receiving, by the home network device, the multimedia content delivered by the Internet network includes: receiving the multimedia content that is sent by the network side device and adopting the digital copyright encryption protection technology DRM.
  • the method before the sending, by the multimedia capability, the multimedia content to the terminal according to the DTCP-IP, the method further includes: decoding the multimedia content into a multimedia clear stream; and clearing the multimedia clear stream according to the multimedia The capability is re-encoded into multimedia content corresponding to the multimedia capabilities.
  • the method further includes: sending the multimedia content corresponding to the multimedia capability of the terminal to the terminal.
  • the multimedia capability includes at least one of the following: a multimedia resolution, a multimedia format, and a decoding capability.
  • a method for receiving multimedia content including: after receiving the multimedia content delivered by the network side device, the home gateway reports the terminal in the local area network LAN connected to the home gateway Having a multimedia capability; receiving, by the home gateway, the multimedia content based on the multimedia capability to transmit the multimedia content based on a digital transmission content protection DTCP-IP protocol on an Internet protocol.
  • a device for transmitting multimedia content which is applied to a home gateway, and includes: an obtaining module, configured to acquire, after receiving the multimedia content delivered by the network side device, the home device The multimedia capability of the terminal in the local area network LAN connected by the gateway; the sending module is configured to send the multimedia content to the terminal according to the digital transmission content protection DTCP-IP protocol on the Internet protocol according to the multimedia capability.
  • the device further includes: a receiving module, configured to receive the multimedia content that is sent by the network side device and adopts a digital copyright encryption protection technology DRM.
  • a receiving module configured to receive the multimedia content that is sent by the network side device and adopts a digital copyright encryption protection technology DRM.
  • a device for receiving multimedia content which is applied to a terminal, and includes: a reporting module, configured to report and report the multimedia content delivered by the network side device after the home gateway receives the multimedia content The multimedia capability of the terminal in the local area network LAN connected to the home gateway; the receiving module is configured to receive, according to the multimedia capability, the multimedia content, according to the multimedia capability, based on the digital transmission content protection DTCP-IP protocol on the Internet protocol Description of multimedia content.
  • a home gateway comprising: a transmitting device including the multimedia content described above.
  • a computer storage medium storing execution instructions for performing the method of any of the above.
  • the home gateway supports DTCP-IP, and the digital copyright protection of the playback terminal device is cancelled.
  • the mechanism, and the technical means for transmitting the multimedia content to the terminal solves the problem that the terminal side must support the digital copyright protection mechanism to receive the multimedia content and the user experience is poor, and the application of the multimedia service of the operator is greatly expanded.
  • FIG. 1 is a flowchart of a method of transmitting multimedia content according to an embodiment of the present invention
  • FIG. 2 is a structural block diagram of a device for transmitting multimedia content according to an embodiment of the present invention
  • FIG. 3 is a block diagram showing another structure of a device for transmitting multimedia content according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for receiving multimedia content according to an embodiment of the present invention.
  • FIG. 5 is a structural block diagram of a receiving apparatus for multimedia content according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a headless multimedia home gateway application environment according to a preferred embodiment of the present invention.
  • FIG. 7 is a block diagram showing the structure of a headless multimedia home gateway system according to a preferred embodiment of the present invention.
  • FIG. 8 is a schematic diagram of internal media flow of a headless multimedia home gateway according to a preferred embodiment 3 of the present invention.
  • FIG. 1 is a flowchart of a method for transmitting multimedia content according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps:
  • Step S102 After receiving the multimedia content delivered by the network side device, the home gateway acquires the multimedia capability of the terminal in the local area network LAN connected to the home gateway;
  • Step S104 Send the multimedia content to the terminal according to the digital transmission content protection DTCP-IP protocol on the Internet protocol according to the multimedia capability.
  • the home gateway supports DTCP-IP, cancels the digital rights protection mechanism of the terminal device operation level, and then transmits the multimedia content to the terminal according to the multimedia capability supported by the terminal, and solves the related technology, because the terminal is required
  • the side must support the digital copyright protection mechanism to receive multimedia content and thus the user experience is poor, greatly expanding the application range of the operator's multimedia service, so that the multimedia content can be securely distributed to the mobile terminal.
  • the home gateway may receive the multimedia content by using the digital rights encryption protection technology DRM delivered by the network side device, because the traditional network IP link is an insecure chain. Therefore, the adoption of such measures enables the secure delivery of multimedia content to the home gateway.
  • DRM digital rights encryption protection technology
  • the multimedia capabilities supported by the terminal in the LAN are different, and before performing the technical solution of the foregoing step S104, the following technical solution is also required: decoding the multimedia content into a multimedia clear stream; The multimedia capability is re-encoded into the multimedia content corresponding to the multimedia capability, and then the multimedia content corresponding to the multimedia capability of the terminal is sent to the terminal, that is, when multiple terminals are included in the local area network, for different terminals, Different multimedia content is to be sent according to the multimedia capabilities it supports, wherein the multimedia clearing refers to a media stream that is not encrypted or scrambled, and can be used for further encoding and the like.
  • multimedia capabilities include at least one of the following: multimedia resolution, multimedia format, and decoding capability.
  • the home gateway completes the networking of the Wide Area Network (WAN) side network and the Local Area Network (LAN) multi-media heterogeneous network networking.
  • WAN Wide Area Network
  • LAN Local Area Network
  • the WAN access technology includes a Digital Subscriber Line (DSL)/Passive Optical Network (PON), which is referred to as PON/Ethernet/3G/4G, and the LAN side network includes Ethernet/Infinity Fidelity ( WIreless-Fidelity (referred to as WiFi)/Zigbee/Bluetooth/Foreign Exchange Station (referred to as FXS/Universal Serial Bus (USB), etc.)
  • the home gateway Home Gateway only completes the data communication bridging function, does not involve the interactive process of multimedia services, especially the protection of the secure transmission of multimedia content; the access type home gateway Home Gateway usually does not have the multimedia codec function, multimedia digital Copyright protection mechanism DRM, home internal multimedia stream secure transmission DTCP-IP.
  • the traditional access type home gateway adds functions related to multimedia services, including multimedia codec, media content protection, and user remote interface; and STB/OTT box
  • the corresponding functions can be reduced, only the decoding rendering function is left to reduce the cost and complexity of multi-STB/OTT box deployment, and the multimedia content in the IPTV/OTT system is safely pulled down to the class in the form of DRM protection.
  • the head-end multimedia home gateway terminates DRM locally at the home gateway.
  • the media content is re-coded, and the multimedia content is securely distributed to multiple playback devices in the home by DTCP-IP.
  • the home gateway completes functions such as multimedia codec, media content protection, and user remote interface in the set top box.
  • functions such as multimedia codec, media content protection, and user remote interface in the set top box.
  • the cost, codec/DRM function is ported from multiple STB/OTT boxes to a single multimedia home gateway, and the STB/OTT box can be simplified into a simple device with only the encoding function of Thin-STB/Thin OTT box, which simplifies the hardware design of the device. , reducing equipment costs.
  • a computer storage medium is further provided, and the computer storage medium may store an execution instruction for executing the method in the foregoing embodiment.
  • FIG. 2 is a structural block diagram of a device for transmitting multimedia content according to an embodiment of the present invention. As shown in Figure 2, the device comprises:
  • the obtaining module 20 is configured to acquire, after receiving the multimedia content delivered by the network side device, the multimedia capability of the terminal in the local area network LAN connected to the home gateway;
  • the sending module 22 is connected to the obtaining module 20, and is configured to send the multimedia content to the terminal according to the digital transmission content protection DTCP-IP protocol on the Internet protocol according to the multimedia capability.
  • the home gateway supports DTCP-IP, cancels the digital copyright protection mechanism of the terminal device operation level, and then transmits the multimedia content to the terminal according to the multimedia capability supported by the terminal, and solves the related technology. Since the terminal side must support the digital copyright protection mechanism to receive multimedia content and thus the user experience is poor, the application range of the operator multimedia service is greatly expanded, so that the multimedia content can be securely distributed to the mobile terminal.
  • the foregoing apparatus further includes: a receiving module 24, connected to the obtaining module 20, configured to receive the multimedia content that is sent by the network side device and adopts a digital copyright encryption protection technology DRM.
  • a receiving module 24 connected to the obtaining module 20, configured to receive the multimedia content that is sent by the network side device and adopts a digital copyright encryption protection technology DRM.
  • a home gateway including the above-mentioned transmitting device for multimedia content.
  • FIG. 4 is a flowchart of a method for receiving multimedia content according to an embodiment of the present invention. 4 shows:
  • Step S402 after receiving the multimedia content delivered by the network side device, the home gateway reports the multimedia capability of the terminal in the local area network LAN connected to the home gateway;
  • Step S404 Receive the multimedia content that is sent by the home gateway according to the multimedia capability according to the digital transmission content protection DTCP-IP protocol on the Internet protocol.
  • the terminal reports the multimedia capabilities supported by the terminal to the home gateway, and the home gateway supports DTCP-IP cancels the digital rights protection mechanism of the terminal equipment operation level, and then receives the technical means of the multimedia content transmitted by the home gateway according to the multimedia capabilities supported by the terminal, and solves the related technology, because the terminal side must support digital copyright protection.
  • the mechanism can receive the multimedia content and the user experience is poor, which greatly expands the application range of the operator's multimedia service, so that the multimedia content can be securely distributed to the mobile terminal.
  • FIG. 5 is a structural block diagram of a device for receiving multimedia content according to an embodiment of the present invention. As shown in Figure 5, the device includes:
  • the reporting module 50 is configured to report, after the home gateway receives the multimedia content delivered by the network side device, the multimedia capability of the terminal in the local area network LAN connected to the home gateway;
  • the receiving module 52 is connected to the reporting module 50, and is configured to receive the multimedia content that is sent by the home gateway according to the multimedia capability according to the digital transmission content protection DTCP-IP protocol on the Internet protocol.
  • the terminal reports the multimedia capabilities supported by the terminal to the home gateway, the home gateway supports DTCP-IP, cancels the digital copyright protection mechanism of the terminal device operation level, and then receives the multimedia supported by the home gateway according to the terminal.
  • the technical means for transmitting the multimedia content which solves the problem that the terminal side must support the digital copyright protection mechanism to receive the multimedia content and thus the user experience is poor, and greatly expands the application range of the operator multimedia service,
  • the multimedia content can be securely distributed to the mobile terminal.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • FIG. 6 is a schematic diagram of a headless multimedia home gateway application environment according to a preferred embodiment of the present invention, as shown in FIG.
  • FIG. 6 actually provides a networking diagram from the IPTV/OTT system side to the home internal playback terminal side Thin-STB/Thin OTT box/Mobile Terminal, the telecommunication carrier or Internet service providers provide end users with multimedia services such as IPTV/OTT services through Internt links;
  • the Internet IP link is an insecure link. Therefore, in the application environment of the preferred embodiment 1, the multimedia DRM-protected multimedia content can be safely pulled down on the IP network to the headless multimedia home gateway; the multimedia home gateway is terminated.
  • the DRM Based on the capabilities of different devices on the LAN side, the DRM re-protects the multimedia clear stream content through DTCP-IP and sends it to the LAN side playback terminal device Thin-STB/Thin OTT box/Mobile Terminal. Since the multimedia codec module/copyright protection module is integrated in the Home Gateway, the LAN side playback terminal Thin-STB/Thin OTT box/Mobile Terminal has lower requirements, as long as the software has the DTCP-IP function, the multimedia stream is decoded and rendered. Go to the screen display.
  • FIG. 7 is a block diagram showing the structure of a headless multimedia home gateway system according to a preferred embodiment of the present invention.
  • FIG. 7 further refines the internal components of the Home Gateway in the case of the preferred embodiment 2 of the present invention, and labels the service connection model between the home gateway and the peripheral WAN side central office system/LAN side playback device.
  • the medium connected to the IPTV/OTT system side may be xDSL/PON/Ethernet/3G/4G, etc.
  • the medium that is connected to the home internal playback device may be Ethernet/WiFi/coaxial cable-based Ethernet. Network over Coax (EoC for short) / Power Line Communication (PLC) and other media.
  • EoC Ethernet over Coax
  • PLC Power Line Communication
  • the Home Gateway receives the DRM-protected multimedia stream on the IP link and deprotects it in the Security Zone to restore the multimedia stream. Then, according to the requirements of different playback terminals on the LAN side, Home Gateway re-encodes the multimedia clear stream through the codec module, and changes different resolutions and encoding formats; then re-encrypts and protects the multimedia clear stream through the DTCP-IP module, and prepares to send Give the corresponding playback terminal device.
  • the Home Gateway is a DTCP-Source terminal for publishing a multimedia stream with security protection; and the playback terminal device is a DTCP-Sink terminal for accepting and playing a multimedia stream with security protection, which needs to be explained.
  • HDMI in Figure 7 is an abbreviation for High Definition Multimedia Interface.
  • FIG. 8 is a schematic diagram of internal media flow of a headless multimedia home gateway according to a preferred embodiment 3 of the present invention, as follows:
  • the headless multimedia home gateway of the preferred embodiment 3 of the present invention can achieve the following technical effects:
  • the multimedia clear stream can be re-transcoded into a streaming media format suitable for playback by the playback device according to the resolution and decoding capability of the playback device on the LAN side;
  • the transcoded streaming media is protected by DTCP-IP and transmitted to the LAN side playback device by wire or wirelessly.
  • the multi-player terminal scenario brought about by the Multi-Screen/Multi-Room requirement encountered in the multimedia service development is simplified, and will exist in multiple
  • the multimedia codec module/digital copyright protection module in the STB/OTT box play terminal is deleted, which simplifies the structure of the playback terminal (Thin-STB/Thin OTT box) and reduces the cost, and the original is in multiple playing terminals.
  • Multimedia codec module/digital rights module incorporated into a single multimedia codec module/digital rights module in the access-type Home Gateway; at the same time, in order to ensure secure transmission of multimedia content on the communication link within the home, access Home Gateway
  • the DTCP-IP module is added to protect the secure transmission of multimedia content to the simplified version of the Thin-STB/Thin OTT box using DTCP-IP technology; another main purpose of adopting DTCP-IP is to be able to use multimedia resources in the IPTV/OTT system. Safely distribute multimedia content to current fast-growing Internet mobile terminals such as smartphones and smart tablets, and expand the user base of the IPTV/OTT system to meet the strong demand of mobile terminals.
  • the embodiment of the present invention achieves the following technical effects: in the related art, the problem that the terminal side must support the digital copyright protection mechanism can receive the multimedia content and the user experience is poor, and the carrier multimedia is greatly expanded.
  • the scope of application of the business enables it to securely distribute multimedia content to mobile terminals.
  • a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the foregoing technical solution provided by the embodiment of the present invention can be applied to the process of receiving and transmitting multimedia content, the home gateway supports DTCP-IP, cancels the digital copyright protection mechanism of the terminal device operation level, and then transmits the multimedia content to the terminal.
  • the problem that the terminal side must support the digital copyright protection mechanism to receive the multimedia content and the user experience is poor, greatly expands the application range of the operator's multimedia service, so that the multimedia content can be distributed securely. Growing mobile terminals.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明提供了一种多媒体内容的发送、接收方法及装置以及家庭网关，其中，所述方法包括：在家庭网关接收到网络侧设备下发的多媒体内容后，获取与所述家庭网关连接的局域网LAN中终端所具备的多媒体能力；根据所述多媒体能力将所述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送至所述终端。采用本发明提供的上述技术方案，解决了相关技术中，由于要求终端侧必须支持数字版权保护机制才能够接收多媒体内容进而用户体验度差的问题，大大扩展了运营商多媒体业务的应用范围，使之可以将多媒体内容安全的分发的日益增长的移动终端。

Description

多媒体内容的发送、接收方法及装置以及家庭网关 技术领域
本发明涉及通信领域，具体而言，涉及一种多媒体内容的发送、接收方法及装置以及家庭网关。
背景技术
当前的互联网协议(Internet Protocol，简称为IP)多媒体业务开展商业实践中，主要有两种模式：电信运营商提供的交互式网络电视(Internet Protocol Television，简称为IPTV)模式和互联网服务商提供的OTT(Over The Top)模式。
国际电信联盟—电信标准部(International Telecommunications Union-Telecommunications standardization sector，简称为ITU-T)、欧洲电信标准学会(European Telecom Standards Institute，简称为ETSI)和自动终端信息服务Automatic Terminal Information Service，简称为ATIS)都将IPTV系统定义为通过可以管控的有质量和安全保证的IP网络进行视频业务传输的业务，其典型特征是与运营商和网络紧密相关，可管控网络、高质量和安全保证，用户为运营商的接入相关客户，OTT的本意是在运营商的网络之上叠加的业务(视频业务只是其中之一)，典型业务特性是与网络运营商和接入无关性，但随着OTT的发展，OTT已广泛被运营商借用，成为通过非管控的公共网络传输视频业务的代名词。两者的本质差别是IPTV需要通过专有保障的网络传输，OTT是通过公众的尽力而为的互联网传输。但两者都需要从局端系统侧内容源到播放终端侧的数字版权保护机制。早期多媒体业务开展，其播放终端机顶盒(Set Top Box，简称为STB)/OTT box无论是1台还是多台，都独自具备数字版权保护模块，成本高；且各播放终端直接与系统侧局端进行独立的业务交互，计费/认证等过程较为复杂。
而对应的在家庭内部的设备上，IPTV模式需要提供接入型家庭网关Home Gateway和STB机顶盒；而OTT模式对应的家庭内部设备，需要接入型家庭网关Home Gateway和OTT机顶盒。当出现同一家庭同用户模式时，就需要增加多个STB/OTT box，对应多个帐号；这时的实现方式并不经济，且运维过程同样较为复杂。
针对相关技术中，由于要求终端侧必须支持数字版权保护机制才能够接收多媒体内容进而用户体验度差的问题，尚未提出有效的解决方案。
发明内容
为了解决上述技术问题，本发明实施例提供了一种多媒体内容的发送方法及装置以及家庭网关。
根据本发明的一个实施例，提供了一种多媒体内容的发送方法，包括：在家庭网关接收 到网络侧设备下发的多媒体内容后，获取与所述家庭网关连接的局域网LAN中终端所具备的多媒体能力；根据所述多媒体能力将所述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送至所述终端。
在本发明实施例中，通过以下方式实现家庭网关接收到互联网网络下发的多媒体内容，包括：接收所述网络侧设备下发的采用数字版权加密保护技术DRM的多媒体内容。
在本发明实施例中，根据所述多媒体能力将所述多媒体内容基于DTCP-IP发送至所述终端之前，还包括：将所述多媒体内容解码为多媒体清流；将所述多媒体清流根据所述多媒体能力重新编码为与所述多媒体能力对应的多媒体内容。
在本发明实施例中，将所述多媒体清流根据所述多媒体能力重新编码为与所述多媒体能力对应的多媒体内容之后，还包括：将与所述终端的多媒体能力对应的多媒体内容发送至所述终端。
在本发明实施例中，所述多媒体能力包括以下至少之一：多媒体分辨率、多媒体格式、解码能力。
根据本发明的另一个实施例，还提供了一种多媒体内容的接收方法，包括：在家庭网关接收到网络侧设备下发的多媒体内容后，上报与所述家庭网关连接的局域网LAN中终端所具备的多媒体能力；接收所述家庭网关根据所述多媒体能力将所述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送的所述多媒体内容。
根据本发明的另一个实施例，还提供了一种多媒体内容的发送装置，应用于家庭网关，包括：获取模块，设置为在接收到网络侧设备下发的多媒体内容后，获取与所述家庭网关连接的局域网LAN中终端所具备的多媒体能力；发送模块，设置为根据所述多媒体能力将所述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送至所述终端。
在本发明实施例中，所述装置还包括：接收模块，设置为接收所述网络侧设备下发的采用数字版权加密保护技术DRM的多媒体内容。
根据本发明的另一个实施例，还提供了一种多媒体内容的接收装置，应用于终端，包括：上报模块，设置为在家庭网关接收到网络侧设备下发的多媒体内容后，上报与所述家庭网关连接的局域网LAN中终端所具备的多媒体能力；接收模块，设置为接收所述家庭网关根据所述多媒体能力将所述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送的所述多媒体内容。
根据本发明的另一个实施例，还提供了一种家庭网关，包括：包括以上所述的多媒体内容的发送装置。
一种计算机存储介质，所述计算机存储介质存储有执行指令，所述执行指令用于执行上述任一项所述的方法。
通过本发明实施例，家庭网关支持DTCP-IP，取消了播放终端设备运营级数字版权保护 机制，进而向终端发送多媒体内容的技术手段，解决了相关技术中，由于要求终端侧必须支持数字版权保护机制才能够接收多媒体内容进而用户体验度差的问题，大大扩展了运营商多媒体业务的应用范围，使之可以将多媒体内容安全的分发的日益增长的移动终端。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的多媒体内容的发送方法的流程图；
图2为根据本发明实施例的多媒体内容的发送装置的结构框图；
图3为根据本发明实施例的多媒体内容的发送装置的另一结构框图；
图4为根据本发明实施例的多媒体内容的接收方法流程图；
图5为根据本发明实施例的多媒体内容的接收装置的结构框图；
图6是根据本发明优选实施例一的无头式多媒体家庭网关应用环境的示意图；
图7是根据本发明优选实施例二的无头式多媒体家庭网关系统设计的模块组成示意图；
图8是根据本发明优选实施例三的无头式多媒体家庭网关内部媒体流向示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在所写的说明书、权利要求书、以及附图中所特别指出的结构来实现和获得。
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
为了解决上述技术问题，在本实施例中提供了一种多媒体内容的发送方法，图1是根据本发明实施例的多媒体内容的发送方法的流程图，如图1所示，包括以下步骤：
步骤S102，在家庭网关接收到网络侧设备下发的多媒体内容后，获取与上述家庭网关连接的局域网LAN中终端所具备的多媒体能力；
步骤S104，根据上述多媒体能力将上述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送至上述终端。
通过上述各个步骤，家庭网关支持DTCP-IP，取消了播放终端设备运营级数字版权保护机制，进而根据终端所支持的多媒体能力向终端发送多媒体内容的技术手段，解决了相关技术中，由于要求终端侧必须支持数字版权保护机制才能够接收多媒体内容进而用户体验度差的问题，大大扩展了运营商多媒体业务的应用范围，使之可以将多媒体内容安全的分发到移动终端中。
对于上述步骤S102中提到的多媒体内容，家庭网关可以通过以下方式接收：接收上述网络侧设备下发的采用数字版权加密保护技术DRM的多媒体内容，由于传统的网络IP链路是不安全的链路，因此，采用此种措施能够将多媒体内容安全的下发到家庭网关中。
由于在实际应用中，LAN中终端所支持的多媒体能力是不同的，那么在执行上述步骤S104的技术方案之前，还需要执行以下技术方案：将上述多媒体内容解码为多媒体清流；将上述多媒体清流根据上述多媒体能力重新编码为与上述多媒体能力对应的多媒体内容，之后将与上述终端的多媒体能力对应的多媒体内容发送至上述终端，也就是说，当局域网内包括多个终端时，对不同的终端，要根据其所支持的多媒体能力发送不同的多媒体内容，其中，多媒体清流是指没有经过加密或者加扰的媒体流，可以用于进一步的编码等操作。
需要说明的是，上述多媒体能力包括以下至少之一：多媒体分辨率、多媒体格式、解码能力。
综上所述可知，通过家庭网关实现了多媒体流的编码和解码过程，以及下发终端的保护机制(DTCP-IP)，均是现有技术中的家庭网关所不能实现的，在现有的接入型家庭网关Home Gateway设备中，家庭网关完成广域网(Wide Area Network，简称为WAN)侧联网以及局域网(Local Area Network，简称为LAN)多介质异构网络组网功能。WAN接入技术包括数字用户线路(Digital Subscriber Line,简称为DSL)/无源光纤网络PON(Passive Optical Network，简称为PON/Ethernet/3G/4G等，LAN侧组网包括Ethernet/无限保真(WIreless-Fidelity，简称为WiFi)/紫蜂协议(Zigbee)/蓝牙(Bluetooth)/外部交换站(Foreign Exchange Station，简称为FXS/通用串行总线(Universal Serial Bus，简称为USB)等。接入型家庭网关Home Gateway只完成数据通信桥接功能，不涉及多媒体业务的交互流程，尤其是多媒体内容的安全传输的保护问题；接入型家庭网关Home Gateway通常都不具备多媒体的编解码功能、多媒体数字版权保护机制DRM、家庭内部多媒体流安全传输DTCP-IP。
换而言之，通过本发明实施例上述提供的技术方案，传统的接入式家庭网关增加了多媒体业务相关功能，包括多媒体编解码、媒体内容保护、用户远程界面等功能；而STB/OTT box可以缩减相对应的功能，只剩下解码渲染功能以降低多STB/OTT box部署时的成本和复杂度，进而IPTV/OTT系统中的多媒体内容，在以DRM保护的形式安全下拉到该类无头式多媒体家庭网关，并在家庭网关本地终结DRM，同时，如有需求，则将媒体内容重新编解码，并以DTCP-IP方式安全的将多媒体内容分发到家庭内部多个播放设备上。
进一步地，家庭网关完成原本在机顶盒的多媒体编解码、媒体内容保护、用户远程界面等功能，这样的技术方案减少了部署家庭多媒体业务时家庭内部设备的多样性和复杂性，降低部署多机顶盒时的成本，编解码/DRM功能从多个STB/OTT box移植到单个多媒体家庭网关，STB/OTT box可以简化成只具备编码功能的Thin-STB/Thin OTT box简单设备，从而简化了设备硬件设计，降低了设备成本。
在本发明实施例中，还提供了一种计算机存储介质，该计算机存储介质可以存储有执行指令，该执行指令用于执行上述实施例中的方法。
在本实施例中还提供了一种多媒体内容的发送装置，应用于家庭网关，用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述，下面对该装置中涉及到的模块进行说明。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。图2为根据本发明实施例的多媒体内容的发送装置的结构框图。如图2所示，该装置包括：
获取模块20，设置为在接收到网络侧设备下发的多媒体内容后，获取与上述家庭网关连接的局域网LAN中终端所具备的多媒体能力；
发送模块22，与获取模块20连接，设置为根据上述多媒体能力将上述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送至上述终端。
通过上述各个模块的综合作用，家庭网关支持DTCP-IP，取消了播放终端设备运营级数字版权保护机制，进而根据终端所支持的多媒体能力向终端发送多媒体内容的技术手段，解决了相关技术中，由于要求终端侧必须支持数字版权保护机制才能够接收多媒体内容进而用户体验度差的问题，大大扩展了运营商多媒体业务的应用范围，使之可以将多媒体内容安全的分发到移动终端中。
可选地，如图3所示，上述装置还包括：接收模块24，与获取模块20连接，设置为接收上述网络侧设备下发的采用数字版权加密保护技术DRM的多媒体内容。
在本发明实施中，还提供了一种家庭网关，包括上述的多媒体内容的发送装置。
为了更加完善本发明实施例上述提供的技术方案，在本发明实施例中，还提供了一种多媒体内容的接收方法，图4为根据本发明实施例的多媒体内容的接收方法流程图，如图4所示：
步骤S402，在家庭网关接收到网络侧设备下发的多媒体内容后，上报与上述家庭网关连接的局域网LAN中终端所具备的多媒体能力；
步骤S404，接收上述家庭网关根据上述多媒体能力将上述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送的上述多媒体内容。
通过上述各个步骤，终端将自身所支持的多媒体能力上报至家庭网关，家庭网关支持 DTCP-IP，取消了播放终端设备运营级数字版权保护机制，进而接收家庭网关根据终端所支持的多媒体能力发送的多媒体内容的技术手段，解决了相关技术中，由于要求终端侧必须支持数字版权保护机制才能够接收多媒体内容进而用户体验度差的问题，大大扩展了运营商多媒体业务的应用范围，使之可以将多媒体内容安全的分发到移动终端中。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必需的。
在本实施例中还提供了一种多媒体内容的接收装置，应用于终端，用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述，下面对该装置中涉及到的模块进行说明。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。图5为根据本发明实施例的多媒体内容的接收装置的结构框图。如图5所示，该装置包括：
上报模块50，设置为在家庭网关接收到网络侧设备下发的多媒体内容后，上报与上述家庭网关连接的局域网LAN中终端所具备的多媒体能力；
接收模块52，与上报模块50连接，设置为接收上述家庭网关根据上述多媒体能力将上述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送的上述多媒体内容。
通过上述各个模块的综合作用，终端将自身所支持的多媒体能力上报至家庭网关，家庭网关支持DTCP-IP，取消了播放终端设备运营级数字版权保护机制，进而接收家庭网关根据终端所支持的多媒体能力发送的多媒体内容的技术手段，解决了相关技术中，由于要求终端侧必须支持数字版权保护机制才能够接收多媒体内容进而用户体验度差的问题，大大扩展了运营商多媒体业务的应用范围，使之可以将多媒体内容安全的分发到移动终端中。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
为了更好的理解上述多媒体内容的发送过程以及接收过程，以下结合优选实施例一至优选实施例三，以及附图6-8对上述实施例的技术方案进行简单说明，但不用于限定本发明实施例：
图6是根据本发明优选实施例一的无头式多媒体家庭网关应用环境的示意图，如图6所示：
给予图6所示的多媒体家庭网关应用环境，图6实际上提供的是从IPTV/OTT系统侧到家庭内部播放终端侧Thin-STB/Thin OTT box/Mobile Terminal的组网示意图，电信运营商或者互联网服务商通过Internt链路向最终用户提供IPTV/OTT业务等多媒体业务；由于传统的 Internet IP链路是不安全的链路，故本发明优选实施例一的应用环境中，多媒体受DRM保护的多媒体内容能够在IP网络上安全的下拉到无头式多媒体家庭网关；多媒体家庭网关终结DRM并根据LAN侧不同设备的能力，将多媒体清流内容重新通过DTCP-IP保护，并发给LAN侧播放终端设备Thin-STB/Thin OTT box/Mobile Terminal等。由于多媒体编解码模块/版权保护模块集成在Home Gateway里，此处的LAN侧播放终端Thin-STB/Thin OTT box/Mobile Terminal要求较低，只要具备软件的DTCP-IP功能，解码多媒体流并渲染到屏幕显示上即可。
图7是根据本发明优选实施例二的无头式多媒体家庭网关系统设计的模块组成示意图；
图7中进一步细化了在本发明优选实施例二的情况下，Home Gateway的内部组成部分，且标注了该家庭网关与外围WAN侧局端系统/LAN侧播放设备的业务连接模型。在WAN侧，接入IPTV/OTT系统侧的介质可以是xDSL/PON/Ethernet/3G/4G等；在LAN侧，与家庭内部播放设备组网的介质可以Ethernet/WiFi/基于同轴电缆的以太网传输(Ethernet over Coax，简称为EoC)/广义电力线通信(Power Line Communication，简称PLC)等多种介质。在多媒体家庭网关内部除传统的主芯片外，具备单独的带DRM的编解码/转码芯片。在WAN侧播放模型中，Home Gateway在IP链路上，接收受DRM保护的多媒体流，并将之在Security Zone内解保护，还原成多媒体清流。而后，Home Gateway根据LAN侧不同的播放终端的要求，通过编解码模块将多媒体清流重新编码，更改不同的分辨率、编码格式；再通过DTCP-IP模块，将多媒体清流重新加密保护，并准备发给对应的播放终端设备。在LAN侧播放模型中，Home Gateway是DTCP-Source端，用于发布带安全防护的多媒体流；而播放终端设备是DTCP-Sink端，用于接受并播放带安全防护的多媒体流，需要说明的是，图7中的HDMI是高清晰度多媒体接口High Definition Multimedia Interface的简称。
图8是根据本发明优选实施例三的无头式多媒体家庭网关内部媒体流向示意图，如下所示：
本发明优选实施例三的无头式多媒体家庭网关能够实现以下技术效果：
1)终结IPTV/OTT系统侧的DRM，将受保护的多媒体内容还原成清流；
2)具备编解码/转码芯片，能够根据LAN侧播放设备的分辨率、解码能力等方面，将多媒体清流重新转码成适合播放设备播放的流媒体格式；
3)将转码后的流媒体用DTCP-IP的方式来保护，通过有线或者无线的方式传输给LAN侧播放设备。
采用本发明优选实施例一直优选实施例三所提供的技术方案，针对多媒体业务开展中遇到的Multi-Screen/Multi-Room需求带来的多播放终端场景，将之简化，将存在于多个STB/OTT box播放终端中的多媒体编解码模块/数字版权保护模块删减，使播放终端的架构简化(Thin-STB/Thin OTT box)并降低成本，并将原本处于多个播放终端中的多个多媒体编解码模块/数字版权模块，合并到接入型Home Gateway中的单个的多媒体编解码模块/数字版权模块；同时，为保证在家庭内部的通信链路上安全传输多媒体内容，在接入型Home Gateway 中增加DTCP-IP模块，使用DTCP-IP技术来保护向简化版的Thin-STB/Thin OTT box安全传输多媒体内容；采用DTCP-IP的另一主要目的是能够将IPTV/OTT系统中的多媒体资源，安全的向当前迅猛增长的互联网移动终端Mobile Terminal如智能手机、智能平板等设备分发多媒体内容，扩展IPTV/OTT系统的用户群，满足移动终端的强烈需求。
综上所述，本发明实施例达到了以下技术效果：解决了相关技术中，由于要求终端侧必须支持数字版权保护机制才能够接收多媒体内容进而用户体验度差的问题，大大扩展了运营商多媒体业务的应用范围，使之可以将多媒体内容安全的分发到移动终端中。
在另外一个实施例中，还提供了一种软件，该软件用于执行上述实施例及优选实施方式中描述的技术方案。
在另外一个实施例中，还提供了一种存储介质，该存储介质中存储有上述软件，该存储介质包括但不限于：光盘、软盘、硬盘、可擦写存储器等。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的对象在适当情况下可以互换，以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
本发明实施例提供的上述技术方案，可以应用于多媒体内容的接收发送过程中，家庭网关支持DTCP-IP，取消了播放终端设备运营级数字版权保护机制，进而向终端发送多媒体内容的技术手段，解决了相关技术中，由于要求终端侧必须支持数字版权保护机制才能够接收多媒体内容进而用户体验度差的问题，大大扩展了运营商多媒体业务的应用范围，使之可以将多媒体内容安全的分发的日益增长的移动终端。

Claims (11)

  1. 一种多媒体内容的发送方法，包括：
    在家庭网关接收到网络侧设备下发的多媒体内容后，获取与所述家庭网关连接的局域网LAN中终端所具备的多媒体能力；
    根据所述多媒体能力将所述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送至所述终端。
  2. 根据权利要求1所述的方法，其中，通过以下方式实现家庭网关接收到互联网网络下发的多媒体内容，包括：
    接收所述网络侧设备下发的采用数字版权加密保护技术DRM的多媒体内容。
  3. 根据权利要求1所述的方法，其中，根据所述多媒体能力将所述多媒体内容基于DTCP-IP发送至所述终端之前，还包括：
    将所述多媒体内容解码为多媒体清流；
    将所述多媒体清流根据所述多媒体能力重新编码为与所述多媒体能力对应的多媒体内容。
  4. 根据权利要求3所述的方法，其中，将所述多媒体清流根据所述多媒体能力重新编码为与所述多媒体能力对应的多媒体内容之后，还包括：
    将与所述终端的多媒体能力对应的多媒体内容发送至所述终端。
  5. 根据权利要求1-4任一项所述的方法，其中，所述多媒体能力包括以下至少之一：多媒体分辨率、多媒体格式、解码能力。
  6. 一种多媒体内容的接收方法，包括：
    在家庭网关接收到网络侧设备下发的多媒体内容后，上报与所述家庭网关连接的局域网LAN中终端所具备的多媒体能力；
    接收所述家庭网关根据所述多媒体能力将所述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送的所述多媒体内容。
  7. 一种多媒体内容的发送装置，应用于家庭网关，包括：
    获取模块，设置为在接收到网络侧设备下发的多媒体内容后，获取与所述家庭网关连接的局域网LAN中终端所具备的多媒体能力；
    发送模块，设置为根据所述多媒体能力将所述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送至所述终端。
  8. 根据权利要求7所述的装置，其中，所述装置还包括：
    接收模块，设置为接收所述网络侧设备下发的采用数字版权加密保护技术DRM的多媒体内容。
  9. 一种多媒体内容的接收装置，应用于终端，包括：
    上报模块，设置为在家庭网关接收到网络侧设备下发的多媒体内容后，上报与所述家庭网关连接的局域网LAN中终端所具备的多媒体能力；
    接收模块，设置为接收所述家庭网关根据所述多媒体能力将所述多媒体内容基于互联网协议上的数字传输内容保护DTCP-IP协议发送的所述多媒体内容。
  10. 一种家庭网关，包括：包括权利要求7-8任一项所述的装置。
  11. 一种计算机存储介质，所述计算机存储介质存储有执行指令，所述执行指令用于执行权利要求1至6中任一项所述的方法。
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