WO2016101626A1 - 一种频道码流处理方法、装置、终端及系统 - Google Patents
一种频道码流处理方法、装置、终端及系统 Download PDFInfo
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- WO2016101626A1 WO2016101626A1 PCT/CN2015/086776 CN2015086776W WO2016101626A1 WO 2016101626 A1 WO2016101626 A1 WO 2016101626A1 CN 2015086776 W CN2015086776 W CN 2015086776W WO 2016101626 A1 WO2016101626 A1 WO 2016101626A1
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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
- H04N21/27—Server based end-user applications
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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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
Definitions
- This document relates to, but is not limited to, the field of multimedia service technologies, and in particular, to a channel code stream processing method, device, terminal and system.
- Streaming media technology provides a way to transmit video, audio, pictures and other media content in the network, and thus has been widely used in multimedia service systems, especially in interactive network television IPTV multimedia services.
- the channel live broadcast service implemented by multicast technology has been widely used.
- the user terminal device sends a channel play request to the media service gateway, and the media service gateway returns an available multicast URL (Uniform Resoure Locator) address to the user terminal device, and then the user terminal device joins the multicast URL address.
- the user terminal device After receiving the multicast code stream of the channel, the user terminal device performs a series of pre-processing on the head-end code stream after receiving the code stream, and finally displays the first frame video picture of the channel.
- the user terminal device needs to go through more steps from the start of the transmission of the play request to the receipt of the media code stream, and the user terminal device needs to take a long time to perform a series of pre-processing on the received head end code stream. deal with. Therefore, the delay time of displaying the first frame video picture of the multicast channel to the terminal device is relatively long.
- the embodiment of the invention provides a method, a device, a terminal and a system for processing a channel code stream, so as to at least solve the technical problem that the delay time of displaying the first frame video picture of the multicast channel to the terminal device is relatively long.
- a data synchronization method for a database including: a cache server receives a channel code stream sent by a multicast source, and performs play pre-processing; and the cache server receives a play request according to the received terminal. And transmitting the preprocessed channel code stream to the terminal.
- the method further includes: before the buffer server receives the channel code stream sent by the multicast source, the cache server receives channel information sent by the multimedia service system; and the cache server sets a corresponding buffer area according to the channel information, to The corresponding channel code stream is stored.
- the cache server receives the notification message sent by the terminal; and the cache server terminates the pre-processed channel code according to the notification message.
- the stream is sent to the terminal.
- the notification message includes: a multicast packet sequence number, where the multicast packet sequence number is a sequence number of the first multicast packet in the channel code stream sent by the terminal to the multicast source;
- the notification message terminates the sending of the pre-processed channel code stream to the terminal, including: when the buffer code sent by the cache server to the terminal includes a media packet whose sequence number is consistent with the multicast packet sequence number, the message packet is terminated. Sending the channel code stream.
- the buffer server receives the channel code stream sent by the multicast source and performs pre-playing, including: locating, decoding, and mapping the channel code stream.
- the method further includes: the cache server receives the heartbeat message periodically sent by the terminal; and the cache server continuously sends the preprocessed channel code stream to the terminal according to the heartbeat message.
- a channel code stream processing apparatus which is disposed on the cache server, and includes: a pre-processing module, configured to receive a channel code stream sent by a multicast source, and perform a pre-play Processing; unicast module, set to play according to the received terminal, please Therefore, the pre-processed channel code stream is sent to the terminal.
- the device includes: a first receiving module, configured to receive channel information sent by the multimedia service system; and a buffering module, configured to set a corresponding buffer area according to the channel information, to store the corresponding channel code stream .
- the device further includes: a second receiving module, configured to receive a notification message sent by the terminal; and a termination module, configured to terminate, according to the notification message, sending the pre-processed channel code stream to the Said terminal.
- a second receiving module configured to receive a notification message sent by the terminal
- a termination module configured to terminate, according to the notification message, sending the pre-processed channel code stream to the Said terminal.
- the notification message includes: a multicast packet sequence number, where the multicast packet sequence number is a sequence number of the first multicast packet in the channel code stream sent by the terminal receiving the multicast source;
- the channel code stream sent to the terminal includes a media packet whose sequence number is consistent with the multicast packet sequence number.
- the pre-processing module is further configured to locate, decode, and map the channel code stream.
- the device further includes: a third receiving module, configured to receive a heartbeat message periodically sent by the terminal; the unicast module is further configured to continuously perform the preprocessed channel code stream according to the heartbeat message Send to the terminal.
- a third receiving module configured to receive a heartbeat message periodically sent by the terminal
- the unicast module is further configured to continuously perform the preprocessed channel code stream according to the heartbeat message Send to the terminal.
- a channel code stream processing method including: receiving cache server address information sent by an access server; and sending a play request to the cache server according to the cache server address information; Receiving a pre-processed channel code stream sent by the cache server.
- the method further includes: receiving channel multicast address information sent by the access server before receiving the cache server address information sent by the access server; and receiving the pre-processed channel code sent by the cache server After the stream, the channel code stream sent by the multicast source is received according to the channel multicast address information.
- the method further includes: after receiving the channel code stream sent by the multicast source according to the channel multicast address information, sending a notification message to the cache server, where the notification message is used by the channel code stream server Terminating the pre-processed channel code stream to the terminal.
- the method further includes: after receiving the pre-processed channel code stream sent by the cache server, sending a heartbeat message to the cache server.
- a channel code stream processing apparatus including: a fifth receiving module, configured to receive cache server address information sent by an access server; and a first sending module configured to The cache server address information is sent to the cache server to send a play request, and the sixth receiving module is configured to receive the play preprocessed channel code stream sent by the cache server.
- the device further includes: a seventh receiving module, configured to receive channel multicast address information sent by the access server; and an eighth receiving module, configured to receive multicast according to the channel multicast address information The channel code stream sent by the source.
- the device further includes: a second sending module, configured to send a notification message to the cache server, where the notification message is used by the channel code stream server to terminate sending the preprocessed channel code stream to the Said terminal.
- a second sending module configured to send a notification message to the cache server, where the notification message is used by the channel code stream server to terminate sending the preprocessed channel code stream to the Said terminal.
- the device further includes: a third sending module, configured to send a heartbeat message to the cache server.
- a third sending module configured to send a heartbeat message to the cache server.
- a channel code stream processing system including: a cache server, configured to receive a channel code stream sent by a multicast source, and perform pre-playing, according to the received terminal. a playback request, the pre-processed channel code stream is sent to the terminal; the terminal, comprising the apparatus of claim 17, configured to receive cache server address information sent by the access server, according to the cache server address information The cache server sends a play request, and receives a pre-processed channel code stream sent by the cache server.
- a computer storage medium having stored therein computer executable instructions for performing the above method is provided.
- the cache server receives the channel code stream sent by the multicast source, and performs pre-processing.
- the cache server sends the pre-processed channel code stream to the terminal according to the received play request sent by the terminal. Enables the terminal device to quickly obtain the channel code through the cache server.
- the stream greatly shortens the delay time of displaying the first frame of the video channel of the multicast channel to the terminal device.
- FIG. 1 is a flowchart 1 of a method for processing a channel code stream according to an embodiment of the present invention
- FIG. 2 is a second flowchart of a channel code stream processing method according to an embodiment of the present invention.
- FIG. 3 is a block diagram 1 of a structure of a channel code stream processing apparatus according to an embodiment of the present invention.
- FIG. 4 is a block diagram 2 of a structure of a channel code stream processing apparatus according to an embodiment of the present invention.
- FIG. 5 is a third flowchart of a channel code stream processing method according to an embodiment of the present invention.
- FIG. 6 is a block diagram 3 of a structure of a channel code stream processing apparatus according to an embodiment of the present invention.
- FIG. 7 is a structural block diagram 4 of a channel code stream processing apparatus according to an embodiment of the present invention.
- FIG. 8 is a schematic diagram of an application scenario of a channel code stream processing system according to an embodiment of the present invention.
- FIG. 1 is a flowchart 1 of a channel code stream processing method according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps:
- the cache server receives the channel code stream sent by the multicast source, and performs pre-processing on the broadcast.
- the cache server sends the pre-processed channel code stream to the terminal according to the received play request sent by the terminal.
- the user terminal After the buffer server performs pre-processing on the channel code stream, the user terminal can quickly display the channel code stream as a video picture.
- the cache server receives the channel code stream sent by the multicast source, and performs pre-processing.
- the cache server sends the pre-processed channel code stream to the terminal according to the received play request sent by the terminal.
- the terminal device can quickly obtain the channel code stream through the cache server, which greatly shortens the delay time of displaying the first frame video image of the multicast channel to the terminal device.
- the cache server receives the channel information sent by the multimedia service system before receiving the channel code stream sent by the multicast source.
- the multimedia service system can automatically send the multicast channel information (mainly multicast channel address, port, channel identifier, etc.) of the local area to the cache server, and the cache server sets up each channel according to the channel information.
- a buffer area stores the channel code stream in the corresponding buffer area after receiving the channel code stream sent by the multicast source.
- . 2 is a second flowchart of a channel code stream processing method according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:
- the channel multicast source sends the multicast channel code stream to the cache server in a manner of RTP (Real-time Transport Protocol) according to the multicast channel information of the local area.
- RTP Real-time Transport Protocol
- the encoding format of the code stream includes but is not limited to H264, MPEG-4, 3GP.
- the buffer server receives the channel code stream sent by the multicast source, and performs pre-playing, and can locate, decode, and map the channel code stream to reduce the time and load of the terminal processing the code stream.
- the access server schedules the terminal to the multicast and cache server area according to the IP metropolitan area network topology and a certain scheduling policy, and delivers the multicast URL of all channels in the area.
- multicast URL address format igmp:// ⁇ MultiCastIp>: ⁇ MultiCastPort>, where ⁇ MultiCastIp> is the multicast IP (network protocol) address, ⁇ MultiCastPort> is the multicast port; at the same time, the local area cache server is delivered.
- step S206 is not limited to after step S204, and may be before step S202 or between S202 and S204.
- the user terminal When the user terminal performs channel switching, the user sends a play request to the corresponding cache server according to the cache server address, where the play request message includes the channel information to be switched.
- the cache server sends the pre-processed channel code stream of the corresponding channel to the user terminal according to the play request sent by the terminal, where the channel code stream is identifiable by the user terminal, and the screen can be quickly presented; the user terminal The channel video picture is decoded and presented after receiving the code stream.
- S212 The user terminal joins the multicast group by means of IGMP (Internet Group Management Protocol) joining according to the multicast URL address of the channel.
- IGMP Internet Group Management Protocol
- the multicast source After the user terminal joins the multicast group, the multicast source sends the corresponding channel code stream to the user terminal.
- S216 The user terminal receives the channel code stream sent by the channel multicast source, records the sequence number of the first multicast packet received, and sends a notification message to the cache server, carrying the sequence number.
- the cache server continues to send the unicast stream to the terminal according to the multicast packet sequence number reported by the user terminal, until the media packet of the same sequence number is sent. At this time, the cache server stops the transmission of the unicast media.
- the user terminal periodically sends a heartbeat message, for example, a Heartbeat message can be sent every 3 seconds, and the cache server receives the heartbeat message sent by the terminal, and continuously sends the pre-processed channel code stream.
- a heartbeat message can be sent every 3 seconds
- the cache server receives the heartbeat message sent by the terminal, and continuously sends the pre-processed channel code stream.
- a computer storage medium having stored therein computer executable instructions for performing the above method is provided.
- FIG. 3 is a block diagram of a block code stream processing device according to an embodiment of the present invention.
- the device includes: a pre-processing module 302, configured to receive a channel code stream sent by the multicast source, and perform a play pre-processing; the unicast module 304 is configured to: according to the received play request sent by the terminal, the pre-processed channel code The stream is sent to the terminal.
- the pre-processing module 302 performs pre-processing on the channel code stream, so that the user terminal can quickly display the channel code stream as a video picture.
- the pre-processing module 302 receives the channel code stream sent by the multicast source, and performs pre-processing, and the unicast module 304 performs pre-processing according to the received play request sent by the terminal.
- the subsequent channel code stream is sent to the terminal.
- the terminal device can quickly obtain the channel code stream through the cache server, which greatly shortens the delay time of displaying the first frame video image of the multicast channel to the terminal device.
- the apparatus further includes: a pre-processing module 402, configured to receive a multicast source and send The channel stream is streamed and pre-processed; the unicast module 404 is configured to send the pre-processed channel code stream to the terminal according to the received play request sent by the terminal; the first receiving module 406 is configured to Receiving the channel information sent by the multimedia service system; the buffering module 408 is configured to set a corresponding buffer area according to the channel information to store the corresponding channel code stream; and the second receiving module 410 is configured to receive the sending by the terminal.
- a pre-processing module 402 configured to receive a multicast source and send The channel stream is streamed and pre-processed
- the unicast module 404 is configured to send the pre-processed channel code stream to the terminal according to the received play request sent by the terminal
- the first receiving module 406 is configured to Receiving the channel information sent by the multimedia service system
- the buffering module 408 is configured to set a corresponding buffer area according to the channel information
- the termination module 412 is configured to send the pre-processed channel code stream to the terminal according to the notification message
- the third receiving module 414 is configured to receive a heartbeat message periodically sent by the terminal
- the unicast module 404 is further configured to continuously send the preprocessed channel code stream to the terminal according to the heartbeat message.
- FIG. 5 is a flowchart 3 of a channel code stream processing according to an embodiment of the present invention. As shown in FIG. 5, the method includes the following steps. :
- the user terminal After the buffer server performs pre-processing on the channel code stream, the user terminal can quickly display the channel code stream as a video picture.
- the terminal device receives the cache server address information sent by the access server, sends a play request to the cache server according to the cache server address information, and receives the pre-processed channel code stream sent by the cache server. .
- the terminal device can quickly obtain the channel code stream through the cache server, which greatly shortens the delay time of displaying the first frame video image of the multicast channel to the terminal device.
- the terminal device of the method is sent by the receiving access server. Receiving the channel multicast address information sent by the access server before the cache server address information; the terminal device receiving the channel stream saved by the buffer server after receiving the pre-processed channel code stream sent by the cache server.
- the URL address information is broadcasted, joined to the multicast group, and received the channel code stream sent by the multicast source.
- the terminal device receives the channel code stream sent by the channel multicast source, records the sequence number of the received first multicast packet, and sends a notification message to the cache server, carrying the sequence number.
- the cache server continues to send the unicast stream to the terminal according to the multicast packet sequence number reported by the terminal device until the media packet of the same sequence number is sent. At this time, the cache server stops the transmission of the unicast media.
- the terminal device periodically sends a heartbeat message, for example, a heartbeat Heartbeat message may be sent every 3 seconds to keep the line between the terminal device and the cache server alive.
- the cache server receives the heartbeat message sent by the terminal, and continuously sends the preprocessed channel code stream to the terminal.
- a computer storage medium having stored therein computer executable instructions for performing the above method is provided.
- the apparatus includes: The fifth receiving module 602 is configured to receive the cache server address information sent by the access server.
- the first sending module 604 is configured to send a play request to the cache server according to the cache server address information.
- the sixth receiving module 606 sets And receiving the pre-processed channel code stream sent by the cache server, wherein the buffer server performs pre-processing on the channel code stream, so that the terminal can quickly display the channel code stream as a video picture.
- the fifth receiving module 602 receives the cache server address information sent by the access server
- the first sending module 604 sends a play request to the cache server according to the cache server address information
- the sixth receiving module 606 receives the The pre-processed channel code stream sent by the cache server.
- the terminal device can quickly obtain the channel code stream through the cache server, which greatly shortens the delay time of displaying the first frame video image of the multicast channel to the terminal device.
- FIG. 7 is a block diagram showing the structure of a channel code stream processing apparatus according to an embodiment of the present invention.
- the apparatus further includes:
- the receiving module 608 is configured to receive the channel multicast address information sent by the access server, and the eighth receiving module 610 is configured to receive the channel code stream sent by the multicast source according to the channel multicast address information;
- the sending module 612 is configured to send a notification message to the cache server, where the notification message is set to be that the channel code stream server terminates sending the pre-processed channel code stream to the terminal; and the third sending module 614 is configured to Sending a heartbeat message to the cache server.
- FIG. 8 is a schematic diagram of an application scenario of a channel code stream processing system according to an embodiment of the present invention. As shown in FIG. 8, the system includes:
- the cache server is configured to receive the channel code stream sent by the multicast source, and perform pre-playing, and send the pre-processed channel code stream to the terminal according to the received play request sent by the terminal;
- the terminal includes the device shown in FIG. 6 or FIG. 7 , configured to receive the cache server address information sent by the access server, send a play request to the cache server according to the cache server address information, and receive the send by the cache server.
- the pre-processed channel code stream is played.
- the channel multicast address information sent by the access server may be received, and the channel code stream sent by the multicast source is received according to the channel multicast address information.
- a notification message may also be sent to the cache server, the notification message being used by the channel code stream server to terminate sending the pre-processed channel code stream to the terminal.
- a heartbeat message can also be sent to the cache server.
- the terminal can quickly display the channel code stream as a video picture.
- the terminal receives the cache server address information sent by the access server, sends a play request to the cache server according to the cache server address information, and receives the pre-processed channel code stream sent by the cache server;
- the cache server receives the channel code stream sent by the multicast source, and performs pre-processing.
- the cache server sends the pre-processed channel code stream to the terminal according to the received play request sent by the terminal.
- the terminal device can quickly obtain the channel code stream through the cache server, which greatly shortens the delay time of displaying the first frame video image of the multicast channel to the terminal device.
- modules or steps of the present application may be Implemented in a general-purpose computing device, which may be centralized on a single computing device or distributed across a network of computing devices, optionally, they may be implemented by program code executable by the computing device, such that They may be stored in a storage device by a computing device, and in some cases, the steps shown or described may be performed in an order different than that herein, or separately fabricated into individual integrated circuit modules. Alternatively, multiple modules or steps of them can be implemented as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
- the foregoing technical solution enables the terminal device to quickly obtain the channel code stream through the cache server, which greatly shortens the delay time of displaying the first frame video picture of the multicast channel to the terminal device.
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Abstract
一种频道码流处理方法、装置、终端及系统，其中，所述方法包括：缓存服务器接收组播源发送的频道码流，并进行播放预处理；缓存服务器根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端。上述技术方案使得终端设备可以通过缓存服务器快速获取频道码流，大大缩短了组播频道的第一帧视频画面展示到终端设备上的延迟时间。
Description
本文涉及但不限于多媒体业务技术领域，尤其涉及一种频道码流处理方法、装置、终端及系统。
网络带宽的提高和网络技术的发展为网络上开展多媒体增值业务提供了可能。流媒体技术提供了一种在网络中传输视频、音频、图片等媒体内容的方式，因此在多媒体业务系统，特别是在交互式网络电视IPTV多媒体业务中得到了广泛的应用。在目前的多媒体业务系统中，采用组播技术实现的频道直播业务得到了广泛的应用。
相关技术中组播频道的切换通常采用以下的方法：
用户终端设备向媒体业务网关发送频道播放请求，媒体业务网关给用户终端设备返回一个可用的组播URL(Uniform Resoure Locator，统一资源定位符)地址，然后用户终端设备加入所述组播URL地址，开始接收频道的组播码流，用户终端设备收到码流之后对头端码流进行一系列预处理，最后展示成频道的第一帧视频画面。
在相关技术中，用户终端设备从发送播放请求开始到接收到媒体码流，需要经过的步骤比较多，而且，用户终端设备需要耗费较长的时间对收到的头端码流进行一系列预处理。因此组播频道的第一帧视频画面展示到终端设备上的延迟时间比较长。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。(The following is a brief summary of subject matter that is described in greater detail herein.This summary is not intended to be limiting as to
the scope of the claims.)
本发明实施例提供了一种频道码流处理方法、装置、终端及系统，以至少解决组播频道第一帧视频画面展示到终端设备上延迟时间比较长的技术问题。
根据本发明实施例的一个方面，提供了一种数据库的数据同步方法，包括：缓存服务器接收组播源发送的频道码流，并进行播放预处理；缓存服务器根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端。
可选地，所述方法还包括：所述缓存服务器接收组播源发送的频道码流之前，缓存服务器接收多媒体业务系统发送的频道信息；缓存服务器根据所述频道信息设立对应的缓存区，以存储对应的所述频道码流。
可选地，所述缓存服务器将预处理后的频道码流发送给所述终端之后，缓存服务器接收所述终端发送的通知消息；缓存服务器根据所述通知消息终止所述将预处理的频道码流发送给所述终端。
可选地，所述通知消息，包括：组播包序号，所述组播包序号是所述终端接收组播源发送的频道码流中第一个组播包的序号；缓存服务器根据所述通知消息终止所述将预处理后的频道码流发送给所述终端，包括：缓存服务器向所述终端发送的频道码流中包含序号与所述组播包序号一致的媒体包时，则终止发送所述频道码流。
可选地，所述缓存服务器接收组播源发送的频道码流并进行播放预处理，包括：对所述频道码流进行定位、解码和映射。
可选地，所述方法还包括：缓存服务器接收所述终端定时发送的心跳消息；缓存服务器根据所述心跳消息连续将预处理后的频道码流发送给所述终端。
根据本发明实施例的另一个方面，提供了一种频道码流处理装置，设置于所述缓存服务器上，包括：预处理模块，设置为接收组播源发送的频道码流，并进行播放预处理；单播模块，设置为根据接收到的终端发送的播放请
求，将预处理后的频道码流发送给所述终端。
可选地，所述装置包括：第一接收模块，设置为接收多媒体业务系统发送的频道信息；缓存模块，设置为根据所述频道信息设立对应的缓存区，以存储对应的所述频道码流。
可选地，所述装置还包括：第二接收模块，设置为接收所述终端发送的通知消息；终止模块，设置为根据所述通知消息终止所述将预处理后的频道码流发送给所述终端。
可选地，所述通知消息包括：组播包序号，所述组播包序号是所述终端接收组播源发送的频道码流中第一个组播包的序号；述终止模块，是设置为通过如下方式实现根据所述通知消息终止所述将预处理后的频道码流发送给所述终端：向所述终端发送的频道码流中包含序号与所述组播包序号一致的媒体包时，则终止发送所述频道码流。
可选地，所述预处理模块，还设置为对所述频道码流进行定位、解码和映射。
可选地，所述装置还包括：第三接收模块，设置为接收所述终端定时发送的心跳消息；所述单播模块，还设置为根据所述心跳消息连续将预处理后的频道码流发送给所述终端。
根据本发明实施例的再一个方面，还提供了一种频道码流处理方法，包括：接收接入服务器发送的缓存服务器地址信息；根据所述缓存服务器地址信息向所述缓存服务器发送播放请求；接收所述缓存服务器发送的经过播放预处理的频道码流。
可选地，所述方法还包括：接收接入服务器发送的缓存服务器地址信息之前，接收所述接入服务器发送的频道组播地址信息；接收所述缓存服务器发送的经过播放预处理的频道码流之后，根据所述频道组播地址信息，接收组播源发送的频道码流。
可选地，所述方法还包括：根据所述频道组播地址信息接收组播源发送的频道码流之后，向所述缓存服务器发送通知消息，所述通知消息用于所述频道码流服务器终止将预处理后的频道码流发送给所述终端。
可选地，所述方法还包括：接收所述缓存服务器发送的经过播放预处理的频道码流之后，向所述缓存服务器发送心跳消息。
根据本发明实施例的再一个方面，还提供了一种频道码流处理装置，包括：第五接收模块，设置为接收接入服务器发送的缓存服务器地址信息；第一发送模块，设置为根据所述缓存服务器地址信息向所述缓存服务器发送播放请求；第六接收模块，设置为接收所述缓存服务器发送的经过播放预处理的频道码流。
可选地，所述装置还包括：第七接收模块，设置为接收所述接入服务器发送的频道组播地址信息；第八接收模块，设置为根据所述频道组播地址信息，接收组播源发送的频道码流。
可选地，所述装置还包括：第二发送模块，设置为向所述缓存服务器发送通知消息，所述通知消息用于所述频道码流服务器终止将预处理后的频道码流发送给所述终端。
可选地，所述装置还包括：第三发送模块，设置为向所述缓存服务器发送心跳消息。
根据本发明实施例的还一个方面，提供了一种频道码流处理系统，包括：缓存服务器，设置为接收组播源发送的频道码流，并进行播放预处理，根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端；终端，包含权利要求17所述的装置，设置为接收接入服务器发送的缓存服务器地址信息，根据所述缓存服务器地址信息向所述缓存服务器发送播放请求，接收所述缓存服务器发送的经过播放预处理的频道码流。
根据本发明实施例的还一个方面，提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行上述的方法。
通过本发明实施例，缓存服务器接收组播源发送的频道码流，并进行播放预处理，缓存服务器根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端。使得终端设备可以通过缓存服务器快速获取频道码
流，大大缩短了组播频道的第一帧视频画面展示到终端设备上的延迟时间。
在阅读并理解了附图和详细描述后，可以明白其他方面。(Other aspects will be appreciated upon reading and understanding the attached figures and detailed description)
附图概述
图1是根据本发明实施例的频道码流处理方法流程图一；
图2是根据本发明实施例的频道码流处理方法流程图二；
图3是根据本发明实施例的频道码流处理装置结构框图一；
图4是根据本发明实施例的频道码流处理装置结构框图二；
图5是根据本发明实施例的频道码流处理方法流程图三；
图6是根据本发明实施例的频道码流处理装置结构框图三；
图7是根据本发明实施例的频道码流处理装置结构框图四；
图8是根据本发明实施例的频道码流处理系统应用场景示意图。
本发明的较佳实施方式
下文中将参考附图并结合实施例来详细说明本申请。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。
本发明实施例提供了一种频道码流处理方法，图1是根据本发明实施例的频道码流处理方法流程图一，如图1所示，该方法包括以下步骤：
S102，缓存服务器接收组播源发送的频道码流，并进行播放预处理；
S104，缓存服务器根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端。
其中，缓存服务器对频道码流进行播放预处理后，可以使得用户终端将频道码流快速展示为视频画面。
通过本发明实施例，缓存服务器接收组播源发送的频道码流，并进行播放预处理，缓存服务器根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端。使得终端设备可以通过缓存服务器快速获取频道码流，大大缩短了组播频道的第一帧视频画面展示到终端设备上的延迟时间。
在本发明的一个实施方式中，缓存服务器在接收组播源发送的频道码流之前，还接收多媒体业务系统发送的频道信息。多媒体业务系统在创建组播频道时，可自动将本区域组播的频道信息(主要是组播频道地址、端口、频道标识等信息)发送给缓存服务器，缓存服务器根据频道信息为每个频道设立一个缓存区，在接收到组播源发送的频道码流后，在对应的缓存区存储该频道码流。
在本发明的一个实施方式中，缓存服务器将预处理后的频道码流发送给所述终端之后，还接收终端发送的通知消息，根据所述通知消息终止向终端发送预处理后的频道码流。图2是根据本发明实施例的频道码流处理方法流程图二，如图2所示，该方法包括以下步骤：
S202，频道组播源根据本区域的组播频道信息，以RTP(Real-time Transport Protocol，实时传输协议)的方式向缓存服务器发送组播的频道码流，码流的编码格式包括但不限于H264、MPEG-4、3GP。
S204，缓存服务器接收组播源发送的频道码流，并进行播放预处理，可以对频道码流进行定位、解码和映射，以减少终端处理码流的时间及负荷。
S206，用户终端接入多媒体业务系统时，接入服务器根据IP城域网拓扑和一定的调度策略，把该终端调度到所属的组播和缓存服务器区域，下发该区域所有频道的组播URL地址，组播URL地址格式：igmp://<MultiCastIp>:<MultiCastPort>，其中<MultiCastIp>是组播IP(网络协议)地址，<MultiCastPort>是组播端口；同时，下发本区域缓存服务器地址，格式：<FCC IP>:<FCC Port>，其中<FCC IP>是缓存服务器单播信令IP，<FCC Port>是缓存服务器单播信令端口。当然，步骤S206并不限于在步骤S204之后，也可以在步骤S202之前或S202与S204之间。
S208，用户终端进行频道切换时，根据缓存服务器地址向相应的缓存服务器发送播放请求，该播放请求消息包含此次欲切换的频道信息。
S210，缓存服务器根据终端发送的播放请求，把对应频道的预处理后的频道码流快速地向用户终端发出，其中，该频道码流是用户终端可识别的，可以快速呈现画面的；用户终端收到码流后解码并呈现频道视频画面。
S212，用户终端根据频道的组播URL地址，通过IGMP(Internet Group Management Protocol，互联网组管理协议)join(加入)信令，加入组播组。
S214，用户终端加入组播组后，组播源就将相应的频道码流发送给该用户终端。
S216，用户终端收到频道组播源发出的频道码流，记录收到的第一个组播包的序号，向缓存服务器发出通知消息，携带该序号。
S218，缓存服务器根据用户终端上报的组播包序号，继续向该终端发送单播流，直到发出相同序号的媒体包，此时，缓存服务器停止单播媒体的发送。
在本发明的一个实施方式中，用户终端会定时发送心跳消息，比如可以每隔3秒发一次心跳Heartbeat消息，缓存服务器接收上述终端发送的心跳消息，连续地将预处理后的频道码流发送给上述终端。
根据本发明实施例的还一个方面，提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行上述的方法。
根据本发明实施例，还提供了一种频道码流处理装置，设置于所述缓存服务器上，图3是根据本发明实施例的频道码流处理装置结构框图一，如图3所示，该装置包括：预处理模块302，设置为接收组播源发送的频道码流，并进行播放预处理；单播模块304，设置为根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端。其中，预处理模块302对频道码流进行播放预处理后，可以使得用户终端将频道码流快速展示为视频画面。
通过本发明实施例，预处理模块302接收组播源发送的频道码流，并进行播放预处理，单播模块304根据接收到的终端发送的播放请求，将预处理
后的频道码流发送给所述终端。使得终端设备可以通过缓存服务器快速获取频道码流，大大缩短了组播频道的第一帧视频画面展示到终端设备上的延迟时间。
图4是根据本发明实施例的频道码流处理装置结构框图二，如图4所示，在本发明的一个实施方式中，该装置还包括：预处理模块402，设置为接收组播源发送的频道码流，并进行播放预处理；单播模块404，设置为根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端；第一接收模块406，设置为接收多媒体业务系统发送的频道信息；缓存模块408，设置为根据所述频道信息设立对应的缓存区，以存储对应的所述频道码流；第二接收模块410，设置为接收所述终端发送的通知消息；终止模块412，设置为根据所述通知消息终止所述将预处理后的频道码流发送给所述终端；第三接收模块414，设置为接收所述终端定时发送的心跳消息；所述单播模块404，还设置为根据所述心跳消息连续将预处理后的频道码流发送给所述终端。
根据本发明实施例，还提供了一种频道码流处理方法，适用于终端设备，图5是根据本发明实施例的频道码流处理流程图三，如图5所示，该方法包括以下步骤：
S502，接收接入服务器发送的缓存服务器地址信息；
S504，根据所述缓存服务器地址信息向所述缓存服务器发送播放请求；
S506，接收所述缓存服务器发送的经过播放预处理的频道码流。
其中，缓存服务器对频道码流进行播放预处理后，可以使得用户终端将频道码流快速展示为视频画面。
通过本发明实施例，终端设备接收接入服务器发送的缓存服务器地址信息，根据所述缓存服务器地址信息向所述缓存服务器发送播放请求，接收所述缓存服务器发送的经过播放预处理的频道码流。使得终端设备可以通过缓存服务器快速获取频道码流，大大缩短了组播频道的第一帧视频画面展示到终端设备上的延迟时间。
在本发明的一个实施方式中，该方法的终端设备在接收接入服务器发送
的缓存服务器地址信息之前，还接收所述接入服务器发送的频道组播地址信息；该终端设备在接收所述缓存服务器发送的经过播放预处理的频道码流之后，根据终端设备保存的频道组播URL地址信息，加入组播组并接收组播源发送的频道码流。
在本发明的一个实施方式中，终端设备收到频道组播源发出的频道码流，记录收到的第一个组播包的序号，向缓存服务器发出通知消息，携带该序号。缓存服务器根据终端设备上报的组播包序号，继续向该终端发送单播流，直到发出相同序号的媒体包，此时，缓存服务器停止单播媒体的发送。
在本发明的一个实施方式中，终端设备会定时发送心跳消息，比如可以每隔3秒发一次心跳Heartbeat消息，使终端设备与缓存服务器之间的线路保活。缓存服务器接收上述终端发送的心跳消息，连续地将预处理后的频道码流发送给上述终端。
根据本发明实施例的还一个方面，提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行上述的方法。
根据本发明实施例，还提供了一种频道码流处理装置，应用于终端设备，图6是根据本发明实施例的频道码流处理装置结构框图三，如图6所示，该装置包括：第五接收模块602，设置为接收接入服务器发送的缓存服务器地址信息；第一发送模块604，设置为根据所述缓存服务器地址信息向所述缓存服务器发送播放请求；第六接收模块606，设置为接收所述缓存服务器发送的经过播放预处理的频道码流，其中，缓存服务器对频道码流进行播放预处理后，可以使得终端将频道码流快速展示为视频画面。
通过本发明实施例，第五接收模块602接收接入服务器发送的缓存服务器地址信息，第一发送模块604根据所述缓存服务器地址信息向所述缓存服务器发送播放请求，第六接收模块606接收所述缓存服务器发送的经过播放预处理的频道码流。使得终端设备可以通过缓存服务器快速获取频道码流，大大缩短了组播频道的第一帧视频画面展示到终端设备上的延迟时间。
图7是根据本发明实施例的频道码流处理装置结构图框图四，在本发明的一个实施方式中，如图7所示，相对图6所示的装置，该装置还包括：第
七接收模块608，设置为接收所述接入服务器发送的频道组播地址信息；第八接收模块610，设置为根据所述频道组播地址信息，接收组播源发送的频道码流；第二发送模块612，设置为向所述缓存服务器发送通知消息，所述通知消息设置为所述频道码流服务器终止将预处理后的频道码流发送给所述终端；第三发送模块614，设置为向所述缓存服务器发送心跳消息。
根据本发明实施例，还提供了一种频道码流处理系统，图8是根据本发明实施例的频道码流处理系统应用场景示意图，如图8所示，该系统包括：
缓存服务器，设置为接收组播源发送的频道码流，并进行播放预处理，根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端；
终端，包含有图6或图7所示的装置，设置为接收接入服务器发送的缓存服务器地址信息，根据所述缓存服务器地址信息向所述缓存服务器发送播放请求，接收所述缓存服务器发送的经过播放预处理的频道码流。还可以接收所述接入服务器发送的频道组播地址信息，根据所述频道组播地址信息，接收组播源发送的频道码流。还可以向所述缓存服务器发送通知消息，所述通知消息用于所述频道码流服务器终止将预处理后的频道码流发送给所述终端。还可以向所述缓存服务器发送心跳消息。
其中，缓存服务器对频道码流进行播放预处理后，可以使得终端将频道码流快速展示为视频画面。
通过本发明实施例，终端接收接入服务器发送的缓存服务器地址信息，根据所述缓存服务器地址信息向所述缓存服务器发送播放请求，接收所述缓存服务器发送的经过播放预处理的频道码流；缓存服务器接收组播源发送的频道码流，并进行播放预处理，缓存服务器根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端。使得终端设备可以通过缓存服务器快速获取频道码流，大大缩短了组播频道的第一帧视频画面展示到终端设备上的延迟时间。
显然，本领域的技术人员应该明白，上述的本申请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。
上述技术方案使得终端设备可以通过缓存服务器快速获取频道码流，大大缩短了组播频道的第一帧视频画面展示到终端设备上的延迟时间。
Claims (23)
- 一种频道码流处理方法，包括：缓存服务器接收组播源发送的频道码流，并进行播放预处理；缓存服务器根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端。
- 根据权利要求1所述的方法，所述方法还包括：所述缓存服务器接收组播源发送的频道码流之前，缓存服务器接收多媒体业务系统发送的频道信息；缓存服务器根据所述频道信息设立对应的缓存区，以存储对应的所述频道码流。
- 根据权利要求1所述的方法，所述方法还包括：所述缓存服务器将预处理后的频道码流发送给所述终端之后，缓存服务器接收所述终端发送的通知消息；缓存服务器根据所述通知消息终止所述将预处理的频道码流发送给所述终端。
- 根据权利要求3所述的方法，其中，所述通知消息，包括：组播包序号，所述组播包序号是所述终端接收组播源发送的频道码流中第一个组播包的序号；缓存服务器根据所述通知消息终止所述将预处理后的频道码流发送给所述终端，包括：缓存服务器向所述终端发送的频道码流中包含序号与所述组播包序号一致的媒体包时，则终止发送所述频道码流。
- 根据权利要求1至4任一项所述的方法，其中，所述缓存服务器接收组播源发送的频道码流并进行播放预处理，包括：对所述频道码流进行定位、解码和映射。
- 根据权利要求5所述的方法，所述方法还包括：缓存服务器接收所述终端定时发送的心跳消息；缓存服务器根据所述心跳消息连续将预处理后的频道码流发送给所述终端。
- 一种设置于所述缓存服务器上的频道码流处理装置，包括：预处理模块，设置为接收组播源发送的频道码流，并进行播放预处理；单播模块，设置为根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端。
- 根据权利要求7所述的装置，所述装置还包括：第一接收模块，设置为接收多媒体业务系统发送的频道信息；缓存模块，设置为根据所述频道信息设立对应的缓存区，以存储对应的所述频道码流。
- 根据权利要求8所述的装置，所述装置还包括：第二接收模块，设置为接收所述终端发送的通知消息；终止模块，设置为根据所述通知消息终止所述将预处理后的频道码流发送给所述终端。
- 根据权利要求9所述的装置，其中，所述通知消息，包括：组播包序号，所述组播包序号是所述终端接收组播源发送的频道码流中第一个组播包的序号；所述终止模块，是设置为通过如下方式实现根据所述通知消息终止所述将预处理后的频道码流发送给所述终端：向所述终端发送的频道码流中包含序号与所述组播包序号一致的媒体包时，则终止发送所述频道码流。
- 根据权利要求7至10任一项所述的装置，所述预处理模块，还设置为对所述频道码流进行定位、解码和映射。
- 根据权利要求11所述的装置，所述装置还包括：第三接收模块，设置为接收所述终端定时发送的心跳消息；所述单播模块，还设置为根据所述心跳消息连续将预处理后的频道码流发送给所述终端。
- 一种频道码流处理方法，包括：接收接入服务器发送的缓存服务器地址信息；根据所述缓存服务器地址信息向所述缓存服务器发送播放请求；接收所述缓存服务器发送的经过播放预处理的频道码流。
- 根据权利要求13所述的方法，所述方法还包括：接收接入服务器发送的缓存服务器地址信息之前，接收所述接入服务器发送的频道组播地址信息；接收所述缓存服务器发送的经过播放预处理的频道码流之后，根据所述频道组播地址信息，接收组播源发送的频道码流。
- 根据权利要求14所述的方法，所述方法还包括：根据所述频道组播地址信息接收组播源发送的频道码流之后，向所述缓存服务器发送通知消息，所述通知消息用于所述频道码流服务器终止将预处理后的频道码流发送给所述终端。
- 根据权利要求13至15任一项所述的方法，所述方法还包括：接收所述缓存服务器发送的经过播放预处理的频道码流之后，向所述缓存服务器发送心跳消息。
- 一种频道码流处理装置，包括：第五接收模块，设置为接收接入服务器发送的缓存服务器地址信息；第一发送模块，设置为根据所述缓存服务器地址信息向所述缓存服务器发送播放请求；第六接收模块，设置为接收所述缓存服务器发送的经过播放预处理的频道码流。
- 根据权利要求17所述的装置，所述装置还包括：第七接收模块，设置为接收所述接入服务器发送的频道组播地址信息；第八接收模块，设置为根据所述频道组播地址信息，接收组播源发送的频道码流。
- 根据权利要求18所述的装置，所述装置还包括：第二发送模块，设置为向所述缓存服务器发送通知消息，所述通知消息用于所述频道码流服务器终止将预处理后的频道码流发送给所述终端。
- 根据权利要求17至19任一项所述的装置，所述装置还包括：第三发送模块，设置为向所述缓存服务器发送心跳消息。
- 一种频道码流处理系统，包括：缓存服务器，设置为接收组播源发送的频道码流，并进行播放预处理，根据接收到的终端发送的播放请求，将预处理后的频道码流发送给所述终端；终端，包含权利要求17所述的装置，设置为接收接入服务器发送的缓存服务器地址信息，根据所述缓存服务器地址信息向所述缓存服务器发送播放请求，接收所述缓存服务器发送的经过播放预处理的频道码流。
- 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1～6中任一项所述的方法。
- 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求13～16中任一项所述的方法。
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| WO2010086021A1 (en) * | 2009-01-30 | 2010-08-05 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for efficient downstream video processing based on upstream metric processing and provision |
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