WO2019218741A1

WO2019218741A1 - Information transmission method and device, storage medium, and electronic device

Info

Publication number: WO2019218741A1
Application number: PCT/CN2019/075750
Authority: WO
Inventors: 张孝猛; 张强强; 李桂根
Original assignee: 中兴通讯股份有限公司
Priority date: 2018-05-18
Filing date: 2019-02-21
Publication date: 2019-11-21
Also published as: CN108737844A

Abstract

The present invention provides an information transmission method and device, a storage medium, and an electronic device. The method comprises: obtaining multiple multimedia information items to be transmitted; configuring associated information of the multiple multimedia information items, wherein the associated information is used to characterize the multiple multimedia information items as a single logical service; and transmitting the multiple multimedia information items and the associated information to a first device. The present invention solves the technical issue in the related art that a terminal can only passively output multimedia information items.

Description

Information transmission method and device, storage medium, electronic device

Technical field

The present invention relates to the field of communications, and in particular to an information transmission method and apparatus, a storage medium, and an electronic device.

Background technique

A live sports event, live broadcasts usually provide video from multiple angles of the camera. The live broadcast of the event we are currently seeing is usually selected by the TV station's director to select a video in the studio, and the video can be switched between different perspectives. The viewers in front of the TV can only passively watch the video broadcast by the TV station, and cannot choose the perspective independently.

In view of the above problems in the related art, no effective solution has been found yet.

Summary of the invention

The embodiment of the invention provides an information transmission method and device, a storage medium and an electronic device.

According to an embodiment of the present invention, an information transmission method is provided, including: acquiring multi-channel multimedia information to be transmitted; setting association information of the multi-channel multimedia information, wherein the association information is used to The road multimedia information is described as a logical service; the multi-channel multimedia information and the associated information are transmitted to the first device.

According to an embodiment of the present invention, another information transmission method is provided, including: receiving multi-channel multimedia information and associated information sent by a second device, where the association information is used to describe the multi-channel multimedia information as A logical service; selecting multimedia information for output in the multi-channel multimedia information.

According to another embodiment of the present invention, an information transmission apparatus is provided, including: an acquisition module configured to acquire multi-channel multimedia information to be transmitted; and a setting module configured to set association information of the multi-channel multimedia information, wherein The association information is used to describe the multi-channel multimedia information into one logical service; and the transmission module is configured to transmit the multiple multimedia information and the associated information to the first device.

According to another embodiment of the present invention, there is provided another information transmission apparatus, comprising: a receiving module, configured to receive multi-channel multimedia information and associated information sent by a second device, wherein the association information is used to The multi-channel multimedia information is described as a logical service; the output module is configured to select multimedia information for output in the multi-channel multimedia information.

According to still another embodiment of the present invention, there is also provided a storage medium having stored therein a computer program, wherein the computer program is configured to execute the steps of any one of the method embodiments described above.

According to still another embodiment of the present invention, there is also provided an electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor being arranged to run the computer program to perform any of the above The steps in the method embodiments.

According to the foregoing embodiment of the present invention, the multi-channel multimedia information and the associated information are transmitted to the first device, and after receiving the multi-channel multimedia information and the associated information of the logical service, the first device may be in the multi-channel multimedia when outputting the logical service. The information is selected and output, which solves the technical problem that the terminal can only passively output multimedia information in related technologies, and improves the attractiveness and market value of the multimedia information corresponding service.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a network architecture diagram of an embodiment of the present invention;

2 is a flowchart of an information transmission method according to an embodiment of the present invention;

3 is a flowchart of another information transmission method according to an embodiment of the present invention;

4 is a structural block diagram of an information transmission apparatus according to an embodiment of the present invention;

FIG. 5 is a structural block diagram of another information transmission apparatus according to an embodiment of the present invention; FIG.

6 is a schematic diagram of an overall framework of a multi-channel audio and video related service according to this embodiment;

FIG. 7 is a schematic diagram of a method for implementing a multi-view live description information in a PMT table according to this embodiment;

FIG. 8 is a schematic diagram of adding a multi-view live description information to a PMT table to implement video playback in the embodiment; FIG.

FIG. 9 is a schematic diagram of a method for describing a plurality of audio and video in a PMT, adding a private description in the SDT table, and implementing a live game of the game in the PMT;

FIG. 10 is a schematic diagram of a method for describing a multi-site live broadcast by adding a private description to the ETT table in the PMT of the embodiment;

FIG. 11 is a schematic diagram showing two sets of audio and video, and adding a private table to implement a high standard definition simulcast method;

FIG. 12 is a schematic diagram of a method for implementing multi-channel audio and video association services in a bidirectional live broadcast environment according to the embodiment.

Detailed ways

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

Example 1

The embodiment of the present application can be run on the network architecture shown in FIG. 1. FIG. 1 is a network architecture diagram of an embodiment of the present invention. As shown in FIG. 1 , the network architecture includes: a service system and a terminal, where the service system and the terminal The interaction is performed, and the service system is configured to acquire multimedia information, process (eg, encode, compress, etc.) multimedia information, and set information related to the multimedia information, and transmit the information to the terminal, and the terminal receives the information transmitted by the service system, and outputs and plays the multimedia information correspondingly. Multimedia content.

In this embodiment, an information transmission method running on the network architecture is provided. FIG. 2 is a flowchart of an information transmission method according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:

Step S202: Acquire multi-channel multimedia information to be transmitted.

Step S204, setting association information of the multi-channel multimedia information, where the association information is used to describe the multi-channel multimedia information into one logical service;

Step S206, transmitting the multi-channel multimedia information and the associated information to the first device.

Through the foregoing steps, the multi-channel multimedia information and the related information are transmitted to the first device, and after receiving the multi-channel multimedia information and the associated information of the logical service, the first device may select the multi-channel multimedia information when outputting the logical service. The output solves the technical problem that the terminal can only passively output the multimedia information in the related art, and improves the attractiveness and market value of the multimedia information corresponding service.

Optionally, the execution body of the foregoing steps may be a service system of multimedia information, such as a video provider, a video platform, a server, etc., but is not limited thereto. The first device is a terminal.

In an example, step S206 may also be to send multiple multimedia information and associated information, which may be sent separately or in a unit during transmission.

The multi-channel multimedia information in this embodiment includes: audio information, and/or video information.

Optionally, setting the association information of the multi-channel multimedia information includes multiple manners.

Setting a plurality of pieces of multimedia information into different unit streams of the same logical service in a Program Map Table (PMT), and setting first association information, wherein the first association information is used to describe between each unit stream The business type of the association and unit flow. Optionally, the setting the first association information includes one of: setting the first association information in the PMT; and setting the first association information in the service information (SI);

Setting a first packet identifier (PID) of the first multimedia information in the PMT, setting a second PID of the second multimedia information in the SI, and setting a second association information in the SI, where The road multimedia information includes first multimedia information and second multimedia information, and the second association information is used to describe an association relationship between the first multimedia information and the second multimedia information, and the first multimedia The service type corresponding to the information and the second multimedia information respectively; the first multimedia information may be main channel multimedia information, and the second multimedia information is one way or multiple way split multimedia information;

A PID of the multi-channel multimedia information is set in each of the plurality of PMTs, and a PID of the multimedia information is set in each PMT, and the third association information is set in the SI, where the third association information is used to describe that the plurality of PMTs carry the same logical service. And the type of service corresponding to the multi-channel multimedia information.

Optionally, the service type corresponding to the multimedia information in the embodiment includes the service type in different scenarios. For example, in the live video broadcast, the service type corresponding to the multiple multimedia information may include a picture collected by the sitting angle position, right The picture captured by the view angle camera and the picture captured by the main view camera. In the game match live broadcast, the service type corresponding to the multi-channel multimedia information may include the picture corresponding to the view of the team 1 , the picture corresponding to the view of the team 2, and the picture corresponding to the full view. In the video playback, the service types corresponding to the multiple multimedia information may include a clear picture, a high definition picture, an ultra high definition picture, a 3D picture, and the like.

Optionally, setting the association information of the multi-channel multimedia information comprises: receiving the request information of the first device; and setting the association information according to the request information.

Optionally, each piece of multimedia information in the multi-channel multimedia information includes: one channel of video information, one or more channels of audio information. When the multimedia information includes multiple audio information, the multiple audio information may include audio information corresponding to multiple service scenes, for example, the audio information of the television screen includes the original sound and the translation sound, and the game screen includes the audio of one team and the teams of both sides. When mixing, the terminal can still play one or more audio information when playing the multi-channel audio information in the multimedia information.

Optionally, the SI includes at least one of the following: a service description table SDT, an event information table EIT, a time and date table TDT, a time offset table TOT, a service group association table BAT, a running state table RS, a padding table ST, and selection information. Table SIT, discontinuous information table DIT, custom table.

In this embodiment, an information transmission method running on the network architecture is provided. FIG. 3 is a flowchart of another information transmission method according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps:

Step S302: Receive multi-channel multimedia information and associated information sent by the second device, where the association information is used to describe the multi-channel multimedia information into one logical service;

Step S304, selecting multimedia information in the multi-channel multimedia information for output.

Optionally, selecting multimedia information in the multi-channel multimedia information for output includes one of the following:

According to the preset rule, the multimedia information is selected and outputted in the multi-channel multimedia information; if only one of the channels is selected for output by default, when the multi-channel multimedia information including multiple definitions is received, the highest-definition multimedia is selected by default. The information is output. Of course, according to the output capability of the output device, when the output device supports only the clear screen, the multimedia information of the clear screen is selected for output.

Parsing the association information to obtain a plurality of service options corresponding to the multi-channel multimedia information, receiving a selection instruction for selecting the first service type among the plurality of service options, and outputting the multimedia information corresponding to the first service type. According to the user's selection instruction, one or more channels of multi-channel multimedia information are selected for output, and when the device supports split screen display or multiple output devices are connected at the same time, multiple multimedia information can be simultaneously output.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

Example 2

In the embodiment, an information transmission device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 4 is a structural block diagram of an information transmission apparatus according to an embodiment of the present invention. As shown in FIG. 4, the apparatus includes:

The obtaining module 40 is configured to obtain multi-channel multimedia information to be transmitted;

The setting module 42 is configured to set association information of the multi-channel multimedia information, where the association information is used to describe the multi-channel multimedia information into one logical service;

The transmission module 44 is configured to transmit the multi-channel multimedia information and the associated information to the first device.

Optionally, the setting module includes one of the following: the first setting unit is configured to set the multiple multimedia information into different unit streams of the same logical service in the program mapping table PMT, and set the first associated information, where An association information is used to describe an association relationship between each unit stream and a service type of the unit stream; and a second setting unit is configured to set a first packet identifier PID of the first multimedia information in the PMT, and set the first in the SI a second PID of the multimedia information, and setting the second association information in the SI, wherein the multi-channel multimedia information includes the first multimedia information and the second multimedia information, and the second association information is used to describe the first An association relationship between the multimedia information and the second multimedia information, and a service type corresponding to the first multimedia information and the second multimedia information respectively; and a third setting unit configured to be respectively in the plurality of PMTs Setting a PID of the multi-channel multimedia information, and setting a third association information in the SI, where the third association information is used to describe that the plurality of PMTs carry the same logical service, and the service type corresponding to the multiple multimedia information respectively

Optionally, the setting module includes: a receiving unit configured to receive request information of the first device; and a fourth setting unit configured to set the related information according to the request information.

FIG. 5 is a structural block diagram of another information transmission apparatus according to an embodiment of the present invention. As shown in FIG. 5, the apparatus includes:

The receiving module 50 is configured to receive the multi-channel multimedia information and the association information sent by the second device, where the association information is used to describe the multi-channel multimedia information into one logical service;

The output module 52 is configured to select multimedia information for output in the multi-channel multimedia information.

Optionally, the output module includes one of the following: the first output unit is configured to select multimedia information in the multi-channel multimedia information for output according to a preset rule; and the second output unit is configured to parse the related information to obtain the multi-channel multimedia information. Corresponding multiple service options, receiving a selection instruction for selecting a first service type among the plurality of service options, and outputting multimedia information corresponding to the first service type.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination. The forms are located in different processors.

Example 3

This embodiment is an optional embodiment of the present application, and is used to describe the application in detail in combination with specific scenarios:

The solution of the embodiment can be applied to the broadcast television field to perform multi-channel audio and video live broadcast service and terminal receiving presentation, and describe the multi-channel audio and video as a logical service for transmission; and expand the association of the multi-channel audio and video based on the existing specifications. The information description is convenient for the terminal to display the multi-channel associated audio and video live broadcast service, and is compatible with the existing service.

This embodiment provides a method for implementing a multi-channel audio and video associated live broadcast service, which improves the attractiveness and market value of the live broadcast service.

In a live broadcast system, the description of a channel by an existing service usually includes one video and one or more audio. Multi-channel video, usually defined as different programs, such as the current high-definition simulcast, the same set of channel content, different resolutions, is defined as two sets of programs. The present invention defines these related audio and video as a set of services by adding a description of the associated information of the associated audio and video.

There are various ways to add related information for different systems and different business characteristics. Specifically, but not limited to the following ways:

The PMT information in the existing PSI/SI is extended, all related audio and video are defined as different unit streams of the same Service, and multi-channel audio and video association descriptors are added, and the relationship between each unit stream is described in detail.

Extend the PMT information in the existing PSI/SI, define all related audio and video as different unit streams of the same Service, and expand the standard tables such as SDT and EIT in the PSI/SI, or add a new private description table. The relationship between each unit flow in the PMT is described in detail.

In the PMT, only the main channel audio and video information is available, and other related audio and video parameters and associated information descriptors are added by extending standard tables such as SDT and EIT, or adding new private tables.

Different audio and video packets are defined as different Service using existing specification standards. At the same time, the relationship between multiple services is described by extending standard tables such as BAT or adding new private tables.

For a two-way live broadcast system similar to IPTV, the relationship between multi-channel audio and video can be obtained through two-way interaction between the terminal and the system.

On the terminal side, according to the method of adding multi-channel audio and video related information at the head end, the related information is obtained through the corresponding way, and the service is displayed. Specific application scenarios include but are not limited to the following:

Live broadcast services from different perspectives of the same event, including live sports events, live broadcasts of variety shows, live broadcasts of games, live broadcasts of news, live broadcasts of multi-party conferences, etc. Users can choose to watch videos of a certain perspective according to their own preferences, or multiple simultaneous perspectives. Watching (multi-window, multi-terminal, etc.), you can easily switch perspectives.

Multi-mainline TV dramas, self-contained egg TV dramas, etc., can open multiple video playback in a specific stage, and the relationship information of multiple windows can also be defined by the front end.

Different attribute versions of the same program, such as different definitions, different adult versions of film and television dramas, and advertisement versions, etc., the terminal can independently select the most suitable version to watch according to some attributes of itself.

The overall framework of the multi-channel audio and video related service, FIG. 6 is a schematic diagram of the overall framework of the multi-channel audio and video related service in this embodiment, as shown in FIG. 6 : in the live broadcast system, the audio and video of many programs are reused in the audio and video stream. In order for the terminal to be able to distinguish which service the audio and video in the stream belongs to, a description information, such as the PSI table defined in the MPEG-2 standard, is a description of the single TS stream. Since the system usually has multiple TS streams, in order to guide digital TV users to quickly find out the services they need in the TS stream, DVB has expanded the PSI of MPEG-2 and added it to the PSI four tables. Nine tables form SI (Service Information). SI is a description of all TS streams of the entire system. The Service Information (SI) defined by the DVB standard is inserted in the TS transport stream conforming to MPEG-2 (13818-1), so that the set-top box (Set-Top-Box) The Integrated Receiver Decoder (IRD) can extract the list of broadcast programs of the program provider and the broadcast parameters from the TS stream, and display them to the digital TV users in an intuitive form, so that the user can conveniently receive and select the digital television programs. The PSI table includes a program association table (PAT), a conditional access table (CAT), a program map table (PMT), and a network information table (NIT), which are inserted into the TS stream through a multiplexer at the time of multiplexing, and are specified by The PID (package identifier) is identified. SI includes Service Description Table (SDT), Event Information Table (EIT), Time and Date Table (TDT), Time Offset Table (TOT), Business Group Association Table (BAT), and Operation Status Table (RST), and Fill Table ( ST), selection information table (SIT), discontinuity information table (DIT) and other table information. The tables in the SI do not need to be transmitted in actual use, where NIT, SDT, EIT, TDT are required to be transmitted, and other tables are selectively transmitted as needed.

In the existing specification, a service PMT table includes a video stream PID and a plurality of audio stream PIDs;

In order to enable a service to include multiple videos to implement different services, we add the associated information of audio and video, and the terminal can obtain different services in which multiple audio and video streams belong to the service.

This embodiment also includes multiple embodiments:

Embodiment 1

A multi-view live description information is added to the PMT table, as shown in FIG. 7. FIG. 7 is a schematic diagram of a method for implementing multi-view live description information in the PMT table in the embodiment. In the live broadcast system, the multi-view audio and video is described in the PMT table. The information, as shown in FIG. 7, has three view video (0xaf0, 0xaf1, 0xaf2) and three audio (0xb51, 0xb52, 0xb53) unit streams in one program. A corresponding private description is added to the description information of each unit stream, 0xaf0 is described as a video of the group view, 0xb51 is described as the audio of the bureau view, 0xaf1 is described as the left view video, 0xb52 is described as the left view audio, and 0xaf2 is described as the right side. Viewing video, 0xb53 is described as right view audio.

When the terminal side searches for a program, the corresponding information is obtained from the PMT, and three video PIDs and three audio PIDs are parsed. The 3 channels of video represented by the 3 video PIDs and the 3 channels of audio represented by the 3 audio PIDs together form a live program supporting 3 viewing angles. The private associated information descriptor describes the meaning of these three perspectives and the relationship between the six PIDs, including which perspective is the primary perspective.

When the user chooses to play the program, the terminal opens the main view and the audio channel to watch the audio and video programs of the main view by default, and prompts the user to have other view videos to select.

The user enters the view switching interface, and the view angle and the audio can be selected according to the view description information. The user can select to switch the view or open the small window to preview the view. FIG. 8 is a schematic diagram of adding the multi-view live description information to the PMT table to implement video play in the embodiment.

Embodiment 2

A plurality of audio and video are described in the PMT, and a private description is added to the SDT table to implement a live game of the game. As shown in FIG. 9, FIG. 9 is a description of a plurality of audio and video in the PMT in the embodiment, and a private description is added in the SDT table to implement the game. A schematic diagram of the live broadcast method.

In the game live broadcast, the general commentator will switch the perspective of the two teams back and forth to explain, in the process of switching, it is likely that the audience will miss the wonderful shot, or the team perspective of the screening, which is not what the audience likes, so we will Multiple audio and video of multiple team angles (team 1 perspective and team 2 perspective) are multiplexed in the audio and video stream;

In the general battle, there are two teams, so the audio and video PID information of Team 1 and Team 2 is placed in a PMT table, and the PMT table will not change frequently. If there is more than two teams in an event of the program, The PMT table needs to be updated, and the terminal also monitors the change and updates the PID information of the program. At this time, only the PID information of the program can be known, and it is impossible to distinguish which player the audio and video PID belongs to;

We fill the audio PID and video PID of team 1 and team 2 into the SDT table. When searching, we will parse the SDT table and the PMT table, and store the audio and video PID and the corresponding team information in the database;

When viewing the program, the user opens the team 1 view and audio by default. When the user enters the view selection and audio selection menu, the team information and corresponding PID are obtained in the database, and then displayed in the menu (such as the terminal side in FIG. 9). As shown in the menu, the user can select the same screen display, team 1 perspective or team 2 perspective. The audio can select mix, team 1 audio or team 2 audio. When the user selects the same screen display, team 1 and team 2 each occupy half. The screen allows the user to view two viewing angles simultaneously (as shown in the video image in Figure 9).

Embodiment 3

In the PMT, the main channel audio and video is described, and a private description is added in the ETT table to implement a multi-site live broadcast. As shown in FIG. 10, FIG. 10 is a description of the main channel audio and video in the PMT in this embodiment, and a private description is added in the ETT table to implement multiple conference sites. Schematic diagram of the live broadcast method.

In multi-site live broadcast, audio and video of multiple venues are multiplexed in audio and video streams (Nanjing branch venue and Shenzhen branch venue);

The PMT table of the program describes the audio and video PID information of the Nanjing branch venue and the Shenzhen branch venue, or the PID information of multiple live broadcasts. At this time, it is still impossible to distinguish which site the audio and video PID belongs to;

A program will have a lot of live broadcasts every day, and each venue will have different sub-meeting venues. Therefore, different events will have different number of sub-meeting venues. The tables describing audio and video will change frequently, so the audio-video related information will be placed. In the EIT table, the background monitor searches the EIT table, parses out the audio and video PID and the corresponding site information, and updates to the database;

When the user enters the event sub-site selection interface, the menu obtains the site information from the database and lists all the sub-sites for the user to select. When the user selects the same screen display, the main site occupies the largest screen, and the sub-site evenly occupies other screen displays (as shown in FIG. 10).

Embodiment 4

Two PMTs respectively describe two sets of audio and video, and add a private table to achieve high-definition simulcasting. As shown in FIG. 11, FIG. 11 shows that two PMTs in the embodiment respectively describe two sets of audio and video, and a private table is added to realize high standard clearing. Schematic diagram of the broadcast method.

In the current DVB playback system, if a program has HD and SD, the operator will add a channel, such as CCTV5 and CCTV5 HD. In this case, if each program has a high-definition distinction, the user's channel list length will be doubled. This trend is now available;

In order to solve this problem, our high-definition audio and video PID information is still stored in different PMT tables, which will not change the current program transmission mode, and is easy to implement, but it can not achieve the purpose of reducing the channel list;

Reduce the description of the two channels in the high-definition standard in the SDT table to one station, such as CCTV5 and CCTV5 HD combined into CCTV5;

Then we establish a private description table, in which the CCTV5 high-standard unvoiced video PID is distinguished, and the terminal stores it in the database after receiving it;

When watching CCTV5, the user enters the high-definition selection menu, and the menu obtains high-definition information and displays it in the database. The user can choose to play HD or SD, so that the high-definition program can be transmitted and watched without increasing the channel list. (As shown in Figure 11).

Embodiment 5

In the two-way live broadcast environment, the multi-channel audio and video association service is implemented. FIG. 12 is a schematic diagram of a method for implementing multi-channel audio and video association services in the two-way live broadcast environment in this embodiment, as shown in FIG.

In the IPTV live broadcast, we transmit the associated information of the program through the configuration file. The configuration file distinguishes different description information by keywords, as follows:

Game Battle:

Team1: play address, Team2: play address;

Play at the venue:

Main venue: play address, Nanjing branch venue: play address, Shenzhen branch venue: play address;

Gao Biaoqing:

CCTV 5 HD: play address, CCTV 5: play address;

When playing the channel, the terminal side pulls the configuration file of the program to the front-end server, parses the file, and saves the file to a temporary variable;

After the user selects to enter the perspective audio selection menu, the menu acquires the temporary variable information and displays it, and the display effect is shown on the terminal side of FIGS. 9, 10, and 11.

Multi-channel audio and video association services can be implemented on the basis of existing front-end systems, and the technologies involved can be implemented on existing terminal hardware.

Example 4

Embodiments of the present invention also provide a storage medium having stored therein a computer program, wherein the computer program is configured to perform the steps of any of the above method embodiments when executed.

Optionally, in the embodiment, the above storage medium may be configured to store a computer program for performing the following steps:

S1, acquiring multiple multimedia information to be transmitted;

S2, setting association information of the multi-channel multimedia information, where the association information is used to describe the multi-channel multimedia information into one logical service;

S3. Transmitting the multi-channel multimedia information and the associated information to the first device.

Optionally, in the embodiment, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM). A variety of media that can store computer programs, such as hard drives, disks, or optical disks.

Embodiments of the present invention also provide an electronic device comprising a memory and a processor having a computer program stored therein, the processor being arranged to execute a computer program to perform the steps of any of the method embodiments described above.

Optionally, the electronic device may further include a transmission device and an input and output device, wherein the transmission device is connected to the processor, and the input and output device is connected to the processor.

Optionally, in this embodiment, the foregoing processor may be configured to perform the following steps by using a computer program:

S1, acquiring multiple multimedia information to be transmitted;

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

An information transmission method includes:

Obtaining multi-channel multimedia information to be transmitted;

Setting the associated information of the multi-channel multimedia information, where the association information is used to describe the multi-channel multimedia information as a logical service;

Transmitting the multi-channel multimedia information and the associated information to a first device.
The method of claim 1, wherein setting the associated information of the multi-channel multimedia information comprises:

Setting the multi-channel multimedia information into different unit streams of the same logical service in the program mapping table PMT, and setting the first association information, where the first association information is used to describe the association relationship between the unit streams And the type of service of the unit stream.
The method of claim 2, wherein setting the first associated information comprises one of the following:

Setting the first association information in the PMT;

The first associated information is set in the service information SI.
The method of claim 1, wherein setting the associated information of the multi-channel multimedia information comprises one of the following:

Setting a first packet identifier PID of the first multimedia information in the PMT, setting a second PID of the second multimedia information in the SI, and setting second association information in the SI, where the multi-channel multimedia information The first multimedia information and the second multimedia information are used, and the second association information is used to describe an association relationship between the first multimedia information and the second multimedia information. And a service type corresponding to the first multimedia information and the second multimedia information respectively;

Setting a PID of the multi-channel multimedia information in a plurality of PMTs, and setting a third association information in the SI, where the third association information is used to describe that the multiple PMTs carry the same logical service, and the multiple The service type corresponding to the road multimedia information.
The method of claim 1, wherein setting the associated information of the multi-channel multimedia information comprises:

Receiving request information of the first device;

The association information is set according to the request information.
The method according to claim 1, wherein each of the multimedia information in the multi-channel multimedia information comprises: one channel of video information, one or more channels of audio information.
The method according to claim 3 or 4, wherein the SI comprises at least one of the following: a service description table SDT, an event information table EIT, a time and date table TDT, a time offset table TOT, a service group association table BAT, The operation state table RS, the padding table ST, the selection information table SIT, the discontinuity information table DIT, and the custom table.
An information transmission method includes:

Receiving, by the second device, the multi-channel multimedia information and the association information, where the association information is used to describe the multi-channel multimedia information as a logical service;

Selecting multimedia information in the multi-channel multimedia information for output.
The method of claim 8, wherein selecting multimedia information for output in the multi-channel multimedia information comprises one of the following:

Selecting multimedia information in the multi-channel multimedia information for output according to a preset rule;

Parsing the association information to obtain a plurality of service options corresponding to the multi-channel multimedia information, receiving a selection instruction for selecting a first service type among the plurality of service options, and outputting a correspondence corresponding to the first service type Multimedia information.
An information transmission device comprising:

Obtaining a module, configured to obtain multi-channel multimedia information to be transmitted;

a setting module, configured to set association information of the multi-channel multimedia information, where the association information is set to describe the multi-channel multimedia information as a logical service;

And a transmission module, configured to transmit the multiple multimedia information and the associated information to the first device.
The apparatus of claim 10 wherein said setting module comprises one of:

a first setting unit, configured to set the multi-channel multimedia information into different unit streams of the same logical service in the program map table PMT, and set the first association information, where the first association information is used to describe each An association relationship between the unit streams and a service type of the unit stream;

a second setting unit, configured to set a first packet identifier PID of the first multimedia information in the PMT, a second PID of the second multimedia information in the SI, and set second association information in the SI, where The multi-channel multimedia information includes the first multimedia information and the second multimedia information, and the second association information is used to describe the first multimedia information and the second multimedia An association relationship between the body information, and a service type corresponding to the first multimedia information and the second multimedia information respectively;

a third setting unit, configured to separately set a PID of the multi-channel multimedia information in a plurality of PMTs, and set a third association information in the SI, where the third association information is used to describe that the plurality of PMT bearers are the same The logical service, and the service type corresponding to the multiple multimedia information.
The apparatus of claim 10, wherein the setting module comprises:

a receiving unit, configured to receive request information of the first device;

And a fourth setting unit configured to set the association information according to the request information.
An information transmission device comprising:

The receiving module is configured to receive the multi-channel multimedia information and the association information sent by the second device, where the association information is used to describe the multi-channel multimedia information into one logical service;

And an output module, configured to select multimedia information in the multi-channel multimedia information for output.
The apparatus of claim 13 wherein said output module comprises one of:

The first output unit is configured to select multimedia information in the multi-channel multimedia information for output according to a preset rule;

a second output unit, configured to parse the association information to obtain a plurality of service options corresponding to the multi-channel multimedia information, and receive a selection instruction for selecting a first service type among the plurality of service options, and outputting The multimedia information corresponding to the first service type.
A storage medium, wherein a computer program is stored in the storage medium, wherein the computer program is configured to execute the method of any one of claims 1 to 9 at runtime.
An electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor being arranged to execute the computer program to perform the method of any one of claims 1 to 9. method.