WO2015103774A1

WO2015103774A1 - Program playback method and device

Info

Publication number: WO2015103774A1
Application number: PCT/CN2014/070473
Authority: WO
Inventors: 郭邦财
Original assignee: 华为终端有限公司
Priority date: 2014-01-10
Filing date: 2014-01-10
Publication date: 2015-07-16

Abstract

Disclosed are a program playback method and a device. A home media server, based on a program playback request that carries program information and sent by a home media client, directly carries key information of audio and video streams corresponding to program information obtained from a program mapping table in a response message and sends the response message to the home media client. The home media client, based on the key information of the audio and video streams, can directly obtain a media format of a program corresponding to the program information, omitting a process in which the home media client downloads some audio and video streams for media detection, reducing a computation amount of a CPU of the home media client, greatly reducing response time of the program played by a user in a home television network system, increasing program playback speed and enhancing a user experience effect.

Description

Method and device for playing program

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method and device for playing a program. Background technique

With the development of cable television networks, the network protocol (IP, Internet ProtocolIP) of cable television networks has begun. The all-IPIP solution of the cable TV network can make the content of the set-top box of the cable TV more abundant. For example, an IPIP address can be set to the set-top box, and the set-top box can play video on demand (VOD, Video On Demand) video, and can also upload the video on the Internet. Video. Such set-top boxes are very different from traditional set-top boxes. They are more interactive with the front-end, and have the characteristics of controllable, support for home network and multi-screen applications, easy maintenance, and long service life.

At present, the home TV network system deployed by IPIP technology is shown in Figure 1. The Home Media Server (Media Server) serves as the center of home media playback through hybrid fiber-optic coaxial cable (HFC, Hybrid Fiber). - Coaxial ) Streams audio and video data with the head-end TV live broadcast system. The set-top box (STB, Set Top Box) in Media Server has multiple Tuner modules for demodulating the TV program signals obtained from the head-end TV live broadcast system. The Media Server can be obtained through the frequency-lock processing of the Tuner module. A list of operators' programs. The cable modem (CM, Cable Modem) in Media Server acts as a gateway to the home TV network, and other devices in the home TV network, such as personal computers (PCs, Personal Computers), mobile phones (Phones), tablets (PADs). Wait for the set-top box of the home media client (IP Client) to communicate. There is no Tuner module in the IP Client's set-top box. Therefore, the IP Client's set-top box needs to obtain the program list from the Media Server's set-top box through the Hypertext Transfer Protocol (http), and then to the Media Server's set-top box according to the program list. Send program play requests for live broadcast, digital video recorder (DVR, Digital Video Recorder), audio playback and more. At present, the process of the user viewing the program by using the IP Client in the home television network system is as shown in FIG. 2, which specifically includes the following steps:

5201, the head end television live broadcast system starts live broadcast of all programs;

5202. The user accesses a webpage of a program list sent from the Media Server in the IP client.

5203. The user selects a program in the IP client, and the IP client sends a program play request generated by the user to the Media Server.

5204. After receiving the program play request, the Media Server starts the frequency lock by using the Tuner module, parses the program map (PMT) sent by the head end television live broadcast system, and obtains the program in the program play request sent by the IP client by using the PMT table. Key information of the audio and video stream; wherein, the key information of the audio and video stream specifically includes: Video Type, Video PID, Audio Type, Audio Stream Address PID) and program clock reference stream address (PCR PID);

S205. The Media Server sends a standard Http 200 response to the IP client.

After receiving the standard Http 200 response, the IP client downloads part of the audio and video stream of the user selected program from the head end television live broadcast system through the Media Server;

5207. The IP client attempts to parse the downloaded audio and video stream by using a xx type media format parser to obtain an exact media format of the downloaded audio and video stream; repeating S207 after the attempt fails until the attempt is successful;

5208. The IP client parses the audio and video stream by using the media format to obtain key information of the audio and video stream, and inputs the key information to the decoder to play all the audio and video streams of the downloaded program.

5209. The user views the selected program from the IP client.

It can be seen from the above process that the user needs to go through steps S202-S208 to play the program by using the IP client, and the time is as follows:

1. Step S202~S203: The IP client and the Media Server establish a time for the http connection to send a program play request, for a total of 0.5 seconds;

2. Steps S204 to S205: The Media Server locks the frequency after receiving the request, and parses the PMT table to obtain The key information of the audio and video stream, to the time of sending the standard http 200 response message to the IP Client, a total of 1.5 seconds;

3. Step S206 S208: The time when the IP client detects the program after the media is detected.

6 seconds.

From the time composition of the above program playing, it takes at least 8 seconds of response time to play the program, and media detection is a relatively time consuming process. The media detection refers to the above steps S206-S207. The IP Client first downloads an audio and video stream with sufficient data, and then uses an exhaustive algorithm to use a certain audio and video type, such as MPEG (Moving Pictures Experts Group, Motion Picture Experts Group MPEG2). , MP4 (also known as MPEG4, is a kind of MPEG format) and other types of media format parser attempts to parse the media format, if the type of format attempt is successful, then you can use this media format to parse this audio and video stream, get Key information of audio and video streams. If you try many times during the media detection process, the media detection time will be longer, and when the network conditions are worse, severe packet loss and jitter will repeat the above two. The process that causes media detection becomes slower.

The long-time media detection process restricts the program playback speed in the home TV network system. Therefore, how to improve the program playback response time in the home TV network system is an urgent problem to be solved. Summary of the invention

Embodiments of the present invention provide a method and apparatus for playing a program to improve response time of program play in a home television network system.

In a first aspect, a method for playing a program is provided, including:

After receiving the program play request that is sent by the home media client and carrying the program information, the home media server parses the latest program map sent by the head end television live broadcast system according to the program information, and acquires the program corresponding to the program information. Key information of audio and video streams;

The home media server generates a response message carrying key information of the audio and video stream of the program corresponding to the program information, and sends the response message to the home media client, the response message And causing the home media client to play audio and video stream data of the program corresponding to the program information according to the media format determined by the key information of the audio and video stream.

In conjunction with the first aspect, in a first possible implementation, the key information of the audio and video stream includes: a video data type, a video data stream address, an audio data type, and an audio data stream address.

With reference to the first aspect, in a second possible implementation manner, before the home media server receives the program play_request sent by the home media client and carries the program information, the method further includes:

After receiving the access program list request sent by the home media client, the home media server feeds back to the home media client a predetermined program list for the user to select program information.

In conjunction with the second possible implementation of the first aspect, in a third possible implementation, the list of programs is determined by:

The home media server receives a program signal sent by the head end television live broadcast system; the home media server performs a program channel search according to the program signal, and generates a program list including all programs played by the head end television live broadcast system. And saving the program listing in a form accessible by the home media client.

With reference to the first aspect, the first possible implementation of the first aspect, the second possible implementation of the first aspect, or the third possible implementation of the first aspect, in a fourth possible implementation The home media server communicates with the home media client by using a hypertext transmission http protocol;

The home media server generates a response message that carries the key information of the audio and video stream of the program corresponding to the program information, and specifically includes:

The home media server puts key information of the audio and video stream of the program corresponding to the program information into an Http200 response header to generate the response message.

In a second aspect, a method for playing a program is provided, including:

The home media client sends a program play request carrying the program information to the home media server;

Receiving, by the home media client, the home media server according to the program play request a response message, wherein the response information carries key information of the audio and video stream of the program corresponding to the program information;

After downloading the audio and video stream data of the program corresponding to the program information, the home media client plays according to the media format determined by the key information of the audio and video stream.

With reference to the second aspect, in a first possible implementation manner, the key information of the audio and video stream includes: a video data type, a video data stream address, an audio data type, and an audio data stream address.

With reference to the second aspect, in a second possible implementation manner, before the home media client sends the program play request carrying the program information to the home media server, the method further includes:

The home media client sends an access program list request to the home media server, and receives a program list for the user to select program information fed back by the home media server.

With reference to the second aspect, the first possible implementation manner of the second aspect, or the second possible implementation manner of the second aspect, in a third possible implementation manner, the home media client and the family The media server communicates via the hypertext transfer http protocol;

The response message is a response message carrying key information of the audiovisual stream of the program corresponding to the program information in the Http200 response header.

In a third aspect, a home media server is provided, including:

a first processing module, configured to: after receiving a program play request that carries the program information sent by the home media client, parse the latest program map sent by the head end television live broadcast system according to the program information, and acquire the program Key information of the audio and video stream of the program corresponding to the information;

a second processing module, configured to generate a response message carrying key information of the audio and video stream of the program corresponding to the program information, and send the response message to the home media client, where the response message is used to enable the home media The client plays the audio and video stream data of the program corresponding to the program information according to the media format determined by the key information of the audio and video stream.

With reference to the third aspect, in a first possible implementation manner, the key information that is used by the first processing module to determine the audio and video stream corresponding to the program information includes: a video data type, a video data stream address, and audio data. Type and audio stream address.

In combination with the third aspect, in a second possible implementation manner, the method further includes: And a third processing module, configured to: after receiving the access program list request sent by the home media client, feed back, to the home media client, a predetermined program mapping table for the user to select program information.

With reference to the third aspect, in a third possible implementation, the method further includes: a third processing module, configured to receive a program signal sent by the head end television live broadcast system, perform a program channel search according to the program signal, and generate the inclusion a program listing of all programs played by the head end television live broadcast system, and saving the program list in a form accessible by the home media client.

With reference to the third aspect, the first possible implementation manner of the third aspect, the second possible implementation manner of the third aspect, or the third possible implementation manner of the third aspect, in the fourth possible implementation manner The home media server communicates with the home media client by using a hypertext transmission http protocol;

The second processing module is specifically configured to put key information of the audio and video stream of the program corresponding to the program information into an Http200 response header to generate the response message.

In a fourth aspect, a home media client is provided, including:

a sending module, configured to send a program play request carrying the program information to the home media server, and a receiving module, configured to receive a response message generated by the home media server according to the program play request, where the response information carries the Key information of the audio and video stream of the program corresponding to the program information;

And an audio/video decoder module, configured to: after downloading the audio and video stream data of the program corresponding to the program information, play according to the media format determined by the key information of the audio and video stream.

With reference to the fourth aspect, in a first possible implementation manner, the key information of the audio and video stream that is received by the receiving module is: a video data type, a video data stream address, an audio data type, and an audio data stream address. .

With reference to the fourth aspect, in a second possible implementation, the method further includes: a processing module, configured to send, by the home media server, an access program list request, and receive, by the home media server, a user-selected program information List of programs.

Combining the fourth aspect, the first possible implementation of the fourth aspect, or the second aspect of the fourth aspect In a third possible implementation manner, the home media server and the home media client communicate by using a hypertext transmission http protocol;

The response message that is received by the receiving module is a response message that carries key information of the audio and video stream of the program corresponding to the program information in the Http200 response header.

In a fifth aspect, a home television network system is provided, including: a home media server and a home media client;

The home media server is configured to: after receiving the program play request that is sent by the home media client and carrying the program information, parse the latest program map sent by the head end television live broadcast system according to the program information, and obtain the Generating key information of the audio and video stream of the program corresponding to the program information; generating a response message carrying key information of the audio and video stream of the program corresponding to the program information, and transmitting the response message to the home media client;

The home media client is configured to send a program play request carrying the program information to the home media server, and receive a response message generated by the home media server according to the program play request, where the response information carries the program The key information of the audio and video stream of the program corresponding to the information; after downloading the audio and video stream data of the program corresponding to the program information, playing according to the media format determined by the key information of the audio and video stream.

The method for playing a program according to the first aspect or the second aspect, the home media server provided by the third aspect, the home media client provided by the fourth aspect, or the home television network system provided by the fifth aspect, since the home media server is based on the home The program playing request sent by the media client carrying the program information, the key information of the audio and video stream of the program corresponding to the program information acquired from the program mapping table is directly carried in the response message, and sent to the home media client, the home media The client can directly learn the media format of the program information according to the key information of the audio and video stream, and save the process of downloading part of the audio and video stream for the media detection by the home media client, which reduces the calculation amount of the CPU of the home media client, and greatly reduces the amount of calculation. The response time of the user playing the program in the home television network system improves the speed of the program and enhances the user experience. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic diagram of networking of a home television network system in the background art;

2 is a schematic flow chart of watching a program by using a home media client in a home television network system in the background art;

3 is a schematic flowchart of a method for playing a program on a home media server side according to an embodiment of the present invention;

4 is a schematic flow chart of a method for playing a program on a home media client side according to an example of the present invention;

FIG. 5 is a schematic flowchart diagram of an embodiment according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a home media server according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a home media client according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a home television network system according to an embodiment of the present invention. detailed description

In order to solve the problem that the response time of the user playing the program in the home television network system is long, the embodiment of the present invention provides a method and a device for playing a program. The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

The program playing method provided by the embodiment of the present invention is applied to a home television network system, and the device related to the embodiment of the present invention mainly includes: a home media server and a home media client; wherein the home media server has a receiving end The live television system transmits a live broadcast program, service data, and device management data to a set-top box of a mixed signal generated by multiplexing; a plurality of tuner modules are disposed in a set top box of the home media server, and the tuner module can perform frequency lock processing, searching All programs sent to the head-end TV live broadcast system and generate a program list for the home media client to access; and, in the home media server, a CM gateway for communicating with each home media client network in the home television network; Since there is no tuner module in the set-top box of the home media client, the home media client needs to send the task of frequency-locking to the home media service through the network. The tuner module of the server performs processing.

Based on the above system architecture, as shown in FIG. 3, an embodiment of the present invention provides a method for playing a program on a home media server side, the method comprising the following steps:

5301. The home media server receives a program play request that is sent by the home media client and carries the program information.

Specifically, the program information carried in the program play request may refer to a program channel identifier such as a program selected by the user or a program number of the selected program of the user, and the like, which can indicate the program information; in a specific implementation, the request sent by the home media client It can be based on the type of communication between the home media client and the home media server. Generally, the home media server and the home media client can communicate through the htt protocol. Therefore, the home media client can send the program play request by using the http protocol.

Moreover, in a specific implementation, the request sent by the home media client is generally received by a gateway in the home media server;

5302. The home media server parses the latest program mapping table sent by the head end television live broadcast system according to the program information, and obtains key information of the audio and video stream of the program corresponding to the program information. In specific implementation, the head end television live broadcast system cycle The program map is sent to the home TV network system, and the tuner in the home media server parses the latest program map issued by the head end television live broadcast system;

In specific implementation, the key information of the audio and video stream includes at least: a video data type (Video Type), a video data stream address (Video PID), an audio data type (Audio Type), and an audio data stream address (Audio PID), and of course Other information may be included and is not limited herein;

5303. The home media server generates a response message that carries key information of the audio and video stream of the program corresponding to the program information.

In a specific implementation, the generated response message may be based on the type of communication between the home media client and the home media server. Generally, the home media server and the home media client can communicate through the http protocol. Therefore, the key information of the audio and video stream of the program corresponding to the program information can be put into the Http200 response header to generate a response message. S304. The home media server sends a response message to the home media client, where the response message causes the home media client to play the audio and video stream data of the program corresponding to the program information according to the media format determined by the key information of the audio and video stream.

Based on the above system architecture, as shown in FIG. 4, an embodiment of the present invention further provides a method for playing a program on a home media server side, the method comprising the following steps:

5401. The home media client sends a program play request carrying program information to the home media server.

Specifically, the program information carried in the program play request sent by the home media client may refer to a program channel identifier such as a program selected by the user or a program number of the selected program of the user, and the like, which can indicate the program information;

In a specific implementation, the request sent by the home media client may be based on the type of communication between the home media client and the home media server. Generally, the home media server and the home media client can communicate through the htt protocol. Therefore, the home media client can send the program play request by using the http protocol.

5402. The home media client receives a response message generated by the home media server according to the program play request, where the response information carries key information of the audio and video stream of the program corresponding to the program information. In specific implementation, the key information of the audio and video stream is at least Including: video data type (Video Type), video data stream address (Video PID), audio data type (Audio Type), and audio data stream address (Audio PID), of course, may also include other information, which is not limited herein;

In a specific implementation, after the request sent by the home media client is received by the home media server, the home media server parses the latest program mapping table sent by the head end television live broadcast system according to the program information, and obtains the program corresponding to the program information. After the key information of the audio and video stream is generated, and the response message of the key information of the audio and video stream of the program corresponding to the program information is generated, the response message is sent to the home media client;

In a specific implementation, the response message received by the home media client may be based on the type of communication between the home media client and the home media server. Generally, communication between the home media server and the home media client can be performed through the http protocol, so program information can be The key information of the audio and video stream of the corresponding program is put into the Http200 response header to generate a response message; that is, the response message is a response message of the key information of the audio and video stream of the program corresponding to the program information carried in the Http200 response header;

S403. After downloading the audio and video stream data of the program corresponding to the program information, the home media client plays the media format determined according to the key information of the audio and video stream;

In a specific implementation, after the key information of the audio and video stream is obtained from the response message, sufficient audio and video stream data to be played may be downloaded, and then the audio and video decoder plays according to the media format specified by the key information; Sufficient refers to audio and video stream data that allows the audio and video decoder to decode a complete image of a frame.

In the above method for playing a program provided by the embodiment of the present invention, the audio and video stream of the program corresponding to the program information acquired from the program map table is generated by the home media server according to the program play request that carries the program information sent by the home media client. The key information is directly carried in the response message and sent to the home media client. The home media client can directly learn the media format corresponding to the program information according to the key information of the audio and video stream, and save the home media client to download part of the audio and video. The process of media detection reduces the calculation amount of the CPU of the home media client, greatly reduces the response time of the user's broadcast program in the home television network system, improves the speed of playing the program, and enhances the user experience.

Further, since there is no tuner module in the set top box of the home media client, the home media client cannot directly obtain the program map from the head end television live broadcast system, and therefore needs to be locked by the tuner module in the set top box of the home media server. deal with.

Therefore, on the home media client side, before the home media client sends the program play request carrying the program information to the home server in step S401, the general home media client needs to send the access program list request to the home media server, and receives the request. The program list for the user to select the displayed program information fed back by the home media server, after which the user can select the program in the program list through the home media client.

Correspondingly, on the home media server side, before the home media server receives the program play request sent by the home media client and carries the program information in step S301, the home media server generally And receiving the access program list request sent by the home media client, and after receiving the access program list request sent by the home media client, feeding back the predetermined program list for the user to select the played program information to the home media client. .

In a specific implementation, the user can access the webpage of the program map of the home media server by using the browser of the home media client, and after the user selects a program to be viewed, the home media client generates a program play request and sends the program to the home media server. .

In a specific implementation, the program list may be determined in the home media server by the following manner. Generally, after the head end television live broadcast system is started, the home media server receives the program signal sent by the head end television live broadcast system;

The home media server performs a program channel search based on the program signal, and the home media server can generate a program list including all programs played by the headend television live broadcast system, and can save the program list in a form accessible to the home media client. That is, if the home media client and the home media server transmit data through the http protocol, the program list can be saved in the form of a web page.

The flow of the program to be broadcasted by the embodiment of the present invention is described in detail below with reference to the specific embodiments. For details, refer to FIG. 5, which includes:

5501. The head-end television live broadcast system starts the live broadcast of all the programs, and the data such as the live program, the service data, and the device management data are multiplexed to form a mixed signal, and the home network in the home television network system is transmitted through a cable television network. Server sends

After receiving the mixed signal, the set-top box in the home media server uses the tuner to perform a program channel search, and generates a program list including all the programs played by the head-end television live broadcast system, and saves the file in the form of an html webpage;

S503: The home media client communicates with the gateway of the home media server by using the http protocol, and the user accesses the webpage of the program list of the home media server in the home media client;

S504: The user selects a program in the home media client, and the home media client sends the program play request generated by the user to the home media server through the http protocol;

5505. After receiving the program play request, the home media server starts to use the tuner module to start the frequency lock, and parses the latest program map sent by the head end television live broadcast system to obtain the program play request. The key information of the audio and video stream of the program corresponding to the program information; wherein, the key information of the audio and video stream specifically includes: a video data type (Video Type), a video data stream address (Video PID), an audio data type (Audio Type), and audio Data stream address (Audio PID);

The user media server sends the key information of the audio and video stream of the program corresponding to the program information to the home media client by sending the key information of the audio and video stream of the program corresponding to the program information. The response header information may be in the following format:

HTTP/1.1 200 OK

Accept-Ranges: none

Video-Pid: 34

Video-Type: 27

Audio-Pid: 33

Audio-Type: 15

Connection: close

Content- Type: video MP2T

Date: Wed, 11 Sep 2013 16:43:14 GMT

After receiving the response message, the home media client parses the key information of the audio and video stream from the response message, and after determining the audio and video stream data of the program corresponding to the program information, the media determined according to the key information of the audio and video stream Playing the audio and video stream data in format;

5508. The user views the selected program from the home media client.

It can be seen from the above embodiment that in the home TV live broadcast system, the home media client plays the program to save the time of the media detection, and the process of playing the program can be shortened to a response time of 2 seconds, which greatly improves the speed of playing the program. .

Based on the same inventive concept, the present invention also provides a home media server, as shown in FIG. 6, comprising:

The first processing module 61 is configured to parse the latest program mapping table sent by the head end television live broadcast system according to the program information after receiving the program play request carrying the program information sent by the home media client, and obtain the program information corresponding to the program information. Key information of the audio and video stream of the program;

The second processing module 62 is configured to generate a key of the audio and video stream of the program corresponding to the program information The response message of the information, and sending a response message to the home media client, the response message causing the home media client to play the audio and video stream data of the program corresponding to the program information according to the media format determined by the key information of the audio and video stream.

In a specific implementation, the first processing module 61 in the foregoing home media server provided by the embodiment of the present invention may be specifically divided into multiple execution modules, for example, may be classified into:

a program request receiving module for receiving a program play request for carrying program information sent by the home media client;

a tuner module for receiving a program mapping table sent by the head end television live broadcast system; and, configured to parse the latest program map sent by the head end television live broadcast system according to the program selected by the user, and obtain a program corresponding to the program information Demultiplexing module for key information of audio and video streams.

In a specific implementation, the second processing module 62 in the foregoing home media server provided by the embodiment of the present invention may be further divided into multiple execution modules, for example, may be classified into:

a response generation module for generating a response message carrying key information of the audio and video stream of the program corresponding to the program information;

A sending module for sending a response message to a home media client.

Further, in the above-mentioned home media server, the key information of the audio and video stream of the program corresponding to the determined program information by the first processing module 61 may include: a video data type, a video data stream address, an audio data type, and an audio data stream. The address may of course include other information, which is not limited herein.

Further, in the foregoing home media server, as shown in FIG. 6, the method may further include: a third processing module 63, configured to: after receiving the access program list request sent by the home media client, feed back a predetermined determination to the home media client. A program list for the user to select the program information to be played.

In a specific implementation, the third processing module 63 in the foregoing home media server provided by the embodiment of the present invention may be further divided into multiple execution modules, for example, may be divided into:

a receiving module for receiving a program listing request sent by the home media client; and a sending module for feeding back to the home media client a predetermined program mapping table for the user to select the played program information. Further, the receiving module in the third processing module 63 can be multiplexed with the program request receiving module in the first processing module 61, that is, the same receiving module performs the functions of both. Similarly, the transmitting module in the third processing module 63 can also be multiplexed with the transmitting module in the second processing module 62, that is, the same transmitting module is used to perform the functions of both.

Further, the home media server, as shown in FIG. 6, may further include: a fourth processing module 64, configured to receive a program signal sent by the head end television live broadcast system, perform a program channel search according to the program signal, and generate a header A list of programs for all programs played by the live TV system, and a list of programs saved in a form accessible to the home media client.

In a specific implementation, the fourth processing module 64 in the foregoing home media server provided by the embodiment of the present invention may be further divided into multiple execution modules, for example, may be classified into:

a receiving module for receiving a program signal sent by the head end television live broadcast system;

a program list generation module for performing a program channel search based on a program signal to generate a program list including all programs played by the head end television live broadcast system;

A storage module for saving a list of programs in a form accessible to a home media client.

Further, the receiving module in the fourth processing module 64 can be multiplexed with the tuner module in the first processing module 61, that is, the same tuner module is used to perform the functions of both.

Further, in the above home media server, the home media server and the home media client communicate by using a hypertext transmission http protocol;

The second processing module 62 is specifically configured to put key information of the audio and video stream of the program corresponding to the program information into the Http200 response header to generate a response message.

Based on the same inventive concept, the present invention also provides a home media client, as shown in FIG.

The sending module 71 is configured to send, to the home media server, a program play request that carries the program information;

The receiving module 72 is configured to receive a response message generated by the home media server according to the program play request, where the response information carries key information of the audio and video stream of the program corresponding to the program information; the audio and video decoder module 73 is configured to Downloading audio and video streams of the program corresponding to the program information After the data, the media format is played according to the key information of the audio and video stream.

Further, in the foregoing home media client, the key information used by the receiving module 72 to receive the audio and video stream includes: a video data type, a video data stream address, an audio data type, and an audio data stream address, and may further include other information. There is no limit here.

Further, the home media client, as shown in FIG. 7, further includes: a processing module 74, configured to send a program list request to the home media server, and receive, by the home media server, the user to select the played program A list of programs for information.

In a specific implementation, the processing module 74 in the foregoing home media client provided by the embodiment of the present invention may be further divided into multiple execution modules, for example, may be classified into:

a transmitting module for transmitting a program listing request to the home media server; and a receiving module for receiving a program list for the user to select the played program information fed back by the home media server.

Further, the transmitting module in the processing module 74 can be multiplexed with the transmitting module 71, that is, the same transmitting module performs the functions of both. Similarly, the receiving module in processing module 74 can be multiplexed with receiving module 72, i.e., using the same receiving module to perform both functions.

Further, in the above home media client, the home media server and the home media client communicate by using a hypertext transmission http protocol;

The response message received by the receiving module 72 is a response message of the key information of the audio and video stream of the program corresponding to the program information carried in the Http200 response header.

Based on the same inventive concept, the present invention also provides a home television network system, as shown in FIG. 8, comprising: a home media server 81 and a home media client 82;

The home media server 81 is configured to: after receiving the program play request that carries the program information sent by the home media client 82, parse the latest program map sent by the head end television live broadcast system according to the program information, and acquire the program. Key information of the audio and video stream of the program corresponding to the information; generating a response message carrying key information of the audio and video stream of the program corresponding to the program information, and transmitting the response message to the home media client;

a home media client 82 for transmitting a section carrying program information to the home media server 81 Receiving a request message generated by the home media server according to the program play request, the response information carrying key information of the audio and video stream of the program corresponding to the program information; After the audio and video stream data of the program corresponding to the program information is played, the media format is determined according to the key information of the audio and video stream.

In the above-mentioned home television network system provided by the embodiment of the present invention, the audio and video of the program corresponding to the program information acquired from the program map table is received by the home media server according to the program play request of the program information carried by the home media client. The key information of the stream is directly carried in the response message and sent to the home media client, and the home media client can directly learn the media format of the program information according to the key information of the audio and video stream, and download the audio and video stream of the program corresponding to the program information. After the program selected by the user is played according to the decoded media format, the process of downloading part of the audio and video stream for media detection by the home media client is eliminated, the calculation amount of the CPU of the home media client is reduced, and the home television network system is greatly reduced. The response time of the user to play the program improves the speed of the program and enhances the user experience.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely 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, CD-ROM, 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 flowcharts and/or block diagrams, and combinations of flow and/or blocks in the flowcharts and/or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

These computer program instructions can also be stored in a bootable computer or other programmable data processing device. In a computer readable memory that operates in a particular manner, causing instructions stored in the computer readable memory to 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 for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although the preferred embodiment of the invention has been described, it will be apparent to those skilled in the < Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and modifications The spirit and scope of the embodiments of the present invention are departed. Thus, it is intended that the present invention cover the modifications and modifications of the embodiments of the invention.

Claims

Rights request

1. A method of program playback, characterized in that the method includes:

After receiving the program play request carrying program information sent by the home media client, the home media server parses the latest program mapping table issued by the head-end TV live broadcast system according to the program information, and obtains the program mapping table corresponding to the program information. Key information of audio and video streams;

The home media server generates a response message carrying key information of the audio and video stream of the program corresponding to the program information, and sends the response message to the home media client, where the response message causes the home media client to The audio and video stream data of the program corresponding to the program information is played in a media format determined by the key information of the audio and video stream.

2. The method of claim 1, wherein the key information of the audio and video streams includes: video data type, video data stream address, audio data type and audio data stream address.

3. The method of claim 1, wherein before the home media server receives the program play request carrying program information sent by the home media client, it further includes:

After receiving the request to access the program list sent by the home media client, the home media server feeds back to the home media client a predetermined program list for the user to select program information.

4. The method of claim 3, wherein the program list is determined in the following manner:

The home media server receives the program signal sent by the head-end TV live broadcast system; the home media server performs a program channel search according to the program signal, and generates a program list including all programs played by the head-end TV live broadcast system , and save the program list in a form accessible to the home media client.

5. The method according to any one of claims 1 to 4, characterized in that the home media server communicates with the home media client through the hypertext transmission http protocol;

The home media server generates a response message carrying key information of the audio and video stream of the program corresponding to the program information, specifically including: The home media server puts the key information of the audio and video streams of the program corresponding to the program information into

Http200 response header to generate the response message.

6. A method of program playback, characterized in that the method includes:

The home media client sends a program play request carrying program information to the home media server;

The home media client receives a response message generated by the home media server according to the program play request, and the response message carries key information about the audio and video stream of the program corresponding to the program information;

After downloading the audio and video stream data of the program corresponding to the program information, the home media client plays it according to the media format determined by the key information of the audio and video stream.

7. The method of claim 6, wherein the key information of the audio and video streams includes: video data type, video data stream address, audio data type and audio data stream address.

8. The method of claim 6, wherein before the home media client sends a program play request carrying program information to the home media server, it further includes:

The home media client sends a program list access request to the home media server, and receives a program list fed back by the home media server for the user to select program information.

9. The method according to any one of claims 6 to 8, characterized in that the home media client and the home media server communicate through the hypertext transmission http protocol;

The response message is a response message that carries in the Http200 response header the key information of the audio and video stream of the program corresponding to the program information.

10. A home media server, characterized by including:

The first processing module is configured to, after receiving a program play request carrying program information sent by the home media client, parse the latest program mapping table issued by the head-end TV live broadcast system according to the program information, and obtain the program The key information of the audio and video stream of the program corresponding to the information;

The second processing module is configured to generate a response message carrying key information of the audio and video stream of the program corresponding to the program information, and send the response message to the home media client, where the response message enables the home media The client plays the media format determined by the key information of the audio and video stream. Play the audio and video stream data of the program corresponding to the program information.

11. The home media server of claim 10, wherein the key information of the audio and video stream corresponding to the program information determined by the first processing module includes: video data type, video data stream address, Audio data type and audio data stream address.

12. The home media server according to claim 10, further comprising: a third processing module, configured to provide feedback to the home media client after receiving the request to access the program list sent by the home media client. A predetermined program mapping table for users to select program information.

13. The home media server according to claim 10, further comprising: a third processing module, configured to receive the program signal sent by the head-end TV live broadcast system, and perform program channel search according to the program signal, Generate a program list including all programs played by the head-end live television system, and save the program list in a form accessible to the home media client.

14. The home media server according to any one of claims 10 to 13, wherein the home media server communicates with the home media client through hypertext transmission http protocol; the second processing module, Specifically, it is used to put the key information of the audio and video stream of the program corresponding to the program information into the Http200 response header, and generate the response message.

15. A home media client, characterized by including:

The sending module is used to send a program playback request carrying program information to the home media server; the receiving module is used to receive a response message generated by the home media server according to the program playback request, and the response message carries the program playback request. Describe the key information of the audio and video streams of the program corresponding to the program information;

The audio and video decoder module is used to play the audio and video stream data according to the media format determined by the key information of the audio and video stream after downloading the audio and video stream data of the program corresponding to the program information.

16. The home media client of claim 15, wherein the key information of the audio and video stream used by the receiving module to receive includes: video data type, video data stream address, audio data type and audio Data flow address.

17. The home media client of claim 15, further comprising: processing A module configured to send a program list access request to the home media server, and receive a program list fed back by the home media server for the user to select program information.

18. The home media client according to any one of claims 15 to 17, characterized in that, the home media server and the home media client communicate through hypertext transmission http protocol; the receiving module is used for The received response message is a response message in which the Http200 response header carries key information of the audio and video stream of the program corresponding to the program information.

19. A home television network system, characterized by including: a home media server and a home media client;

The home media server is configured to, after receiving a program play request carrying program information sent by the home media client, parse the latest program mapping table issued by the head-end TV live broadcast system according to the program information, and obtain the program mapping table. Key information of the audio and video stream of the program corresponding to the program information; Generate a response message carrying key information of the audio and video stream of the program corresponding to the program information, and send the response message to the home media client;

The home media client is configured to send a program play request carrying program information to a home media server; receive a response message generated by the home media server according to the program play request, and the response information carries the program The key information of the audio and video stream of the program corresponding to the information; after downloading the audio and video stream data of the program corresponding to the program information, play it according to the media format determined by the key information of the audio and video stream.