WO2017036395A1

WO2017036395A1 - Resource request method and apparatus

Info

Publication number: WO2017036395A1
Application number: PCT/CN2016/097513
Authority: WO
Inventors: 潘云川
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-08-31
Filing date: 2016-08-31
Publication date: 2017-03-09
Also published as: CN106488261A

Abstract

Provided are a resource request method and apparatus. The resource request method comprises: receiving an invoking request sent by a first multimedia system in a heterogeneous multimedia system and used for invoking a multimedia resource of a second multimedia system, wherein the heterogeneous multimedia system comprises the first multimedia system and the second multimedia system; under the trigger of the invoking request, transcoding the multimedia resource according to a transcoding format needed by the first multimedia system; and sending the transcoded multimedia resource to the first multimedia system. By means of the technical solution provided in the present invention, the problem in the related art that intercommunication between heterogeneous multimedia systems cannot be achieved is solved, so that interconversion of multimedia resources and control signalling can be achieved between a plurality of multimedia systems (heterogeneous multimedia systems), thereby achieving intercommunication between the heterogeneous multimedia systems.

Description

Resource request method and device

Technical field

The present invention relates to the field of communications, and in particular to a resource request method and apparatus.

Background technique

With the development of wired communication, wireless communication 3G, 4G, multimedia communication applications are also widely available and diverse: video conferencing, video surveillance, Internet Protocol Television (IPTV), OTT (Over The Top) ), VOIP (Voice over Internet Protocol), etc., but there are differences in coding and signaling control for each multimedia application. For example, the video surveillance field focuses on real-time video viewing, video recording and video storage, so it is necessary to time-frame I frames, so that the 1080P/25F code stream reaches 4M-8M/bps, and the video surveillance protocol specification complies with the open network video interface forum ( Open Network Video Interface Forum (referred to as ONVIF), Physical Security Interoperability Alliance (PISA) or GB\28181 (GB). The application of video conferencing focuses on the application of high-definition bandwidth. The bit rate of 1080P/30F is only 1M~2M/bps. The protocol specification of video conferencing complies with H.323 and Session Initiation Protocol (SIP). In the case of a converged/integrated multimedia communication application involving video surveillance and video conferencing, the media and control signaling of both parties cannot communicate.

In view of the problem that intercommunication cannot be achieved between multimedia systems in related technologies, an effective technical solution has not been proposed.

Summary of the invention

In order to solve the above technical problem, the present invention provides a resource request method and apparatus.

According to an aspect of the embodiments of the present invention, a resource request method is provided, including: receiving, by a first multimedia system in a heterogeneous multimedia system, a call request for calling a multimedia resource of a second multimedia system, where The heterogeneous multimedia system includes: the first multimedia system, the second multimedia system; and the multimedia resource according to the first multimedia system, triggered by the calling request The required transcoding format is transcoded; the transcoded multimedia resource is sent to the first multimedia system.

Preferably, transcoding the multimedia resource according to a transcoding format required by the first multimedia system, including: transcoding the multimedia resource according to a transcoding format required by the first multimedia system Or transcoding the multimedia resource according to the code stream feature of the first multimedia system.

Preferably, the information required for transcoding the multimedia resource according to the code stream feature includes at least: an algorithm used for resolution, a frame rate, a code rate, and a transcoding.

Preferably, before receiving the call request, the method further includes: acquiring multimedia resource information of the second multimedia system; and generating the call request according to the multimedia resource information.

Preferably, the multimedia resource is transcoded according to a transcoding format required by the first multimedia system, including:

Decoding the multimedia resource; re-encoding the decoded multimedia resource according to a transcoding format of the first multimedia system.

According to another aspect of the present invention, a resource requesting apparatus is provided, including: a first receiving module, configured to receive a second multimedia system sent by a first multimedia system in a heterogeneous multimedia system for invoking a second multimedia The request for the multimedia resource of the system, wherein the heterogeneous multimedia system comprises: the first multimedia system, the second multimedia system; and a transcoding module, which is connected to the first receiving module, and is configured to The transcoding module is transcoded according to the transcoding format required by the first multimedia system, and the sending module is connected to the first encoding module, and is configured to be transcoded. The subsequent multimedia resources are sent to the first multimedia system.

Preferably, the transcoding module is configured to transcode the multimedia resource according to a transcoding format required by the first multimedia system; or according to a code stream feature of the first multimedia system The multimedia resources are transcoded.

Preferably, the transcoding module needs at least the following information to transcode the multimedia resource according to the code stream feature of the first multimedia system: resolution, frame rate, code rate, and algorithm used for encoding.

Preferably, the device further includes: an obtaining module, connected to the first receiving module, configured to acquire multimedia resource information of the second multimedia system; and a generating module connected to the acquiring module, configured to be configured according to The multimedia resource information generates the call request.

Preferably, the transcoding module includes: a decoding unit configured to decode the multimedia resource; and a re-encoding unit configured to re-encode the decoded multimedia resource according to a transcoding format of the first multimedia system .

According to still another embodiment of the present invention, a storage medium is also provided. The storage medium is arranged to store program code for performing the following steps:

Receiving, by the first multimedia system in the heterogeneous multimedia system, a call request for invoking a multimedia resource of the second multimedia system, where the heterogeneous multimedia system includes: the first multimedia system, the a second multimedia system; the multimedia resource is transcoded according to a transcoding format required by the first multimedia system, and the transcoded multimedia resource is sent to the The first multimedia system.

Optionally, the storage medium is further arranged to store program code for performing the following steps:

Transcoding the multimedia resource according to the transcoding format required by the first multimedia system, including: transcoding the multimedia resource according to a transcoding format required by the first multimedia system; or The code stream feature of the first multimedia system transcodes the multimedia resource.

Before receiving the call request, the method further includes: acquiring multimedia resource information of the second multimedia system; and generating the call request according to the multimedia resource information.

Transcoding the multimedia resource according to a transcoding format required by the first multimedia system, including: decoding the multimedia resource; re-encoding the decoding according to a transcoding format of the first multimedia system Multimedia resources.

Through the embodiment of the present invention, the multimedia resource and the control instruction (the multimedia resource requested by the first multimedia system to the second multimedia system, and the first multimedia system to the second multimedia) Control finger sent by the system The technical means of transcoding according to the required format solves the problem that inter-communication between heterogeneous multimedia systems cannot be realized in related technologies, thereby realizing multimedia resources between multiple multimedia systems (heterogeneous multimedia systems) The mutual conversion with control signaling enables interworking between heterogeneous multimedia systems.

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:

FIG. 1 is a flowchart of a resource request method according to an embodiment of the present invention; FIG.

2 is a flowchart of a terminal control method according to an embodiment of the present invention;

FIG. 3 is a structural block diagram of a resource requesting apparatus according to an embodiment of the present invention; FIG.

4 is a block diagram showing another structure of a resource requesting apparatus according to an embodiment of the present invention;

FIG. 5 is a structural block diagram of a terminal control apparatus according to an embodiment of the present invention; FIG.

6 is a block diagram showing another structure of a terminal control apparatus according to an embodiment of the present invention;

Figure 7 is a block diagram showing the composition of a preferred embodiment of the present invention;

Figure 8 is a flow diagram of transcoding in accordance with a preferred embodiment of the present invention.

detailed description

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.

Other features and advantages of the invention will be set forth in the description which follows, The objectives and other advantages of the invention may be realized and obtained by means of the structure particularly pointed in the appended claims.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is an embodiment of the invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

In the embodiment of the present invention, a resource request method is also provided. FIG. 1 is a flowchart of a resource request method according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps:

Step S102, receiving a call request for calling a multimedia resource of the second multimedia system sent by the first multimedia system in the heterogeneous multimedia system, where the heterogeneous multimedia system includes: the first multimedia system, The second multimedia system described above;

Step S104, the multimedia resource is transcoded according to the transcoding format required by the first multimedia system, triggered by the calling request.

Step S106: Send the transcoded multimedia resource to the first multimedia system.

Through the foregoing various steps, the first multimedia system sends a call request to the second multimedia system, and then, under the trigger of the call request, the multimedia resource can be transcoded according to the transcoding format required by the first multimedia system. And then transmitting the transcoded multimedia resource to the first multimedia system, solving the problem that the multimedia system cannot be interoperable in the related technology, thereby realizing the multimedia resource and the control letter between the multiple multimedia systems. The mutual conversion of the orders enables the interworking between multimedia systems.

The foregoing step S104 has multiple implementation manners. In an optional example of the embodiment of the present invention, the foregoing technical solution may be implemented: transcoding the foregoing multimedia resource according to the transcoding format required by the first multimedia system; or Transmitting the multimedia resource according to the code stream feature of the first multimedia system (which can be understood as an automatic transcoding process), wherein the information required by the automatic transcoding process includes at least: resolution, frame Rate, code rate, algorithm used for encoding.

The method further includes: acquiring multimedia resource information of the second multimedia system, and generating a call request according to the multimedia resource information, that is, acquiring the second multimedia medium, before the step S102 is performed, that is, before receiving the call request. After the multimedia resource information of the body system, the first multimedia system knows what call request should be sent to request the required resources.

It should be noted that the above transcoding process actually includes: a decoding process and a re-encoding process, that is, the received media resources need to be decoded first, and then transcoded according to the transcoding format of the first multimedia system.

In the embodiment of the present invention, a terminal control method is further provided. FIG. 2 is a flowchart of a terminal control method according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:

Step S202, receiving, by the first multimedia system in the heterogeneous multimedia system, the first control signaling for controlling the terminal of the second multimedia system, where the heterogeneous multimedia system includes: a first multimedia system, Second multimedia system;

Step S204, matching the first control signaling with the second control signaling of the second multimedia system;

Step S206: The matched first control signaling is delivered to the terminal.

Through the foregoing various steps, the first multimedia system sends a control command to the second multimedia system, and the control command can be encoded according to a format required by the second multimedia system, and then the encoded multimedia resource is sent to the first A multimedia system solves the problem that intercommunication cannot be realized between multimedia systems in related technologies, thereby realizing mutual conversion of multimedia resources and control signaling between multiple multimedia systems, and realizing between multimedia systems Interoperability.

In an optional example, the foregoing second multimedia system includes: a video conference system, where the terminal includes: a video conference camera, and the first control instruction is used to control the video conference camera to rotate according to the specified trajectory.

Optionally, the foregoing step S204 may be implemented by: acquiring a signaling format of the second control signaling; and matching the signaling format of the first control signaling to the second control signaling Order format.

In order to better understand the above resource request process and the technical solution of the terminal control process, the following description is combined with a preferred example, but is not used to limit the embodiment of the present invention:

An example of the invention is to address the interoperability issues between heterogeneous media systems. The example of the present invention provides a heterogeneous multimedia service bus structure, and implements multimedia intercommunication between heterogeneous multimedia systems, and involves the following technical solutions:

1. Intelligently identify the coding mode and control signaling of the heterogeneous multimedia system. For example, the mutual recognition of the coding mode and control signaling between the video conference and the video surveillance system.

2. The coding and signaling intelligence between heterogeneous multimedia systems are mutually transformed. For example, the mutual intelligent transformation of coding and control signaling between video conferencing and video surveillance systems.

3. Intelligent interoperability between heterogeneous multimedia systems. For example, the device and the system can realize intelligent intercommunication between the video conference system and the video surveillance system.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. Secondly, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

A resource requesting device is also provided in the embodiment to implement the above-mentioned embodiments and preferred embodiments. The descriptions of the modules involved in the device are described below. 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. 3 is a structural block diagram of a resource requesting apparatus according to an embodiment of the present invention. As shown in Figure 3, the device comprises:

The first receiving module 30 is configured to receive a call request for calling a multimedia resource of the second multimedia system sent by the first multimedia system in the heterogeneous multimedia system, where the heterogeneous multimedia system includes: Multimedia system, the above second multimedia system;

The transcoding module 32 is connected to the first receiving module 30, and is configured to transcode the multimedia resource according to the transcoding format required by the first multimedia system, triggered by the calling request;

The sending module 34 is connected to the transcoding module 32 and configured to send the transcoded multimedia resource to the first multimedia system.

Through the integrated action of the foregoing modules, the first multimedia system sends a call request to the second multimedia system, and then, under the trigger of the call request, the multimedia resource can be encoded according to the needs of the first multimedia system. Then, the encoded multimedia resource is sent to the first multimedia system, which solves the problem that the heterogeneous multimedia system cannot be interoperable in the related technology, thereby realizing the multimedia resource and the control letter between the multiple multimedia systems. The mutual conversion of the commands enables interoperability between heterogeneous multimedia systems.

Optionally, the transcoding module 32 is configured to transcode the multimedia resource according to the transcoding format required by the first multimedia system, or perform the foregoing multimedia resource according to the code stream feature of the first multimedia system. Transcode, where, turn Transcoding the multimedia resource according to the code stream feature of the first multimedia system requires at least the following information: resolution, frame rate, code rate, and algorithm used for encoding.

4 is a block diagram of another structure of a resource requesting apparatus according to an embodiment of the present invention. As shown in FIG. 4, the apparatus further includes: an obtaining module 36, connected to the first receiving module 30, configured to acquire the second multimedia. The multimedia resource information of the system; the generating module 38 is connected to the obtaining module 36, and configured to generate the calling request according to the multimedia resource information.

As shown in FIG. 4, in order to complete the function of the transcoding module 32, the transcoding module 32 includes: a decoding unit 320 configured to decode the multimedia resource; and a re-encoding unit 322 connected to the decoding unit 320, configured to follow the A transcoded format of a multimedia system re-encodes the decoded multimedia resource.

A terminal control device is also provided in the embodiment to implement the above-mentioned embodiments and preferred embodiments. The descriptions of the modules involved in the device are described below. 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. 5 is a structural block diagram of a terminal control apparatus according to an embodiment of the present invention. As shown in Figure 5, the device includes:

The second receiving module 50 is configured to receive the first control signaling sent by the first multimedia system in the heterogeneous multimedia system for controlling the terminal of the second multimedia system, where the heterogeneous multimedia system includes: a first multimedia system, the second multimedia system;

The matching module 52 is connected to the second receiving module 50 and configured to match the first control signaling with the second control signaling of the second multimedia system.

The sending module 54 is connected to the matching module 52 and configured to deliver the matched first control signaling to the terminal.

Through the integrated action of the foregoing modules, the control signaling is sent to the second multimedia system by the first multimedia system, and the control signaling can be encoded according to the format required by the second multimedia system, and then the encoded The multimedia resource is sent to the first multimedia system, and the problem that the heterogeneous multimedia systems cannot be interoperable is solved in the related technology, thereby realizing the mutual conversion between the multimedia resources and the control signaling between the multiple multimedia systems. Interoperability between heterogeneous multimedia systems is achieved.

In an optional embodiment, the second receiving module 50 is configured to include: a video conference system in the second multimedia system, where the terminal includes: a video camera, where the first control signaling is used to control the camera according to the specified When the trajectory is rotated, the first control signaling is received.

FIG. 6 is a block diagram of another structure of a terminal control apparatus according to an embodiment of the present invention. As shown in FIG. 6, the matching module 52 includes: an obtaining unit 520, configured to acquire a signaling format of the second control signaling; and a matching unit 522. It is configured to match the signaling format of the first control signaling to the signaling format of the second control signaling one by one.

In order to better understand the above resource request process or terminal control process, the following describes the preferred embodiment:

The technical solution involved in the preferred embodiment of the present invention is composed of the following parts. Referring to FIG. 7: a heterogeneous multimedia system (such as video conferencing system 60, video monitoring system 62, IPTV system 64, and other multimedia systems), multimedia intelligence It can be connected to the bus 66, the multimedia intelligent conversion module 68, and the signaling conversion module 70, and is composed of four parts. The implementation of the device for the heterogeneous multimedia intelligent identification and application described above relates to the following key steps (see FIG. 7), but it should be noted that the steps of the embodiments of the present invention are not used to limit the order of steps.

The first step: access to heterogeneous multimedia systems

1. The heterogeneous multimedia system with unified communication standards in the industry is connected according to the standard. For example, the conference is in accordance with H.323 or SIP, and the monitoring platform can be in accordance with ONVIF and GB\T28181.

2. For the standard, it is accessed according to the customization requirements.

The second step: heterogeneous multimedia intelligent identification, application

1. The heterogeneous multimedia system that has accessed the device mutually acquires the heterogeneous multimedia resource information of the other party.

2. A system (hereinafter referred to as a caller) that has access to the heterogeneous multimedia system of the device invokes multimedia resources of other heterogeneous multimedia systems (hereinafter referred to as callees) that have accessed the device as needed.

3. The device will call the multimedia smart code according to the caller's request and then send it to the caller.

The third step: terminal control of heterogeneous multimedia systems, such as: controlling the rotation of the video surveillance camera in a video conference

1. A heterogeneous multimedia system that has access to the device controls a terminal of a heterogeneous multimedia system.

2. The device converts the control signaling into a format recognizable by the heterogeneous multimedia system and then forwards it to the heterogeneous multimedia system.

3. The heterogeneous multimedia system sends control to the underlying control according to the instructions issued by the device.

FIG. 8 is a flowchart of transcoding according to a preferred embodiment of the present invention. As shown in FIG. 8, the key steps include:

Step S802: Receive a multimedia call request, when the multimedia system receives a code stream of another multimedia system, the device distributes the request to the multimedia intelligent transcoding module;

Step S804, the multimedia intelligent transcoding module determines whether the call is caused by a special transcoding requirement;

If yes, go to step S806, if not, go to step S810;

Step S806, parsing the transcoding requirements, such as resolution, frame rate, code rate, encoding algorithm, and the like.

Step S808, the intelligent transcoding module transcodes the target code stream according to requirements.

Step S810, the multimedia intelligent transcoding module learns the coding features of the code streams of the two parties.

Step S812, according to the result of the learning, the multimedia intelligent transcoding module decodes the target code stream, and then re-encodes according to the caller's code stream special diagnosis. This completes the intelligent transcoding process.

Step S814, the multimedia intelligent transcoding module outputs the code stream after the transcoding to the caller.

In summary, the embodiment of the present invention achieves the following technical effects: in the related art, no multimedia system is found between The method realizes the problem of interworking, thereby realizing the mutual conversion of multimedia resources and control signaling between multiple multimedia systems, and realizing the intercommunication between multimedia systems.

In another embodiment, software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments.

In another embodiment, a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.

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. It is to be understood that the objects so used are interchangeable, where appropriate, so that the embodiments of the invention described herein can be carried out in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprising" and any variants thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

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 spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

Through the embodiment of the present invention, the multimedia resource and the control instruction (the multimedia resource requested by the first multimedia system to the second multimedia system, and the first multimedia system to the second multimedia) The control command sent by the system) is a technical means for transcoding according to the required format, and solves the problem that the heterogeneous multimedia systems cannot be interoperable in the related art, thereby realizing the intercommunication between multiple multimedia systems (heterogeneous multimedia systems). The mutual conversion of multimedia resources and control signaling can be realized, and the interworking between heterogeneous multimedia systems is realized.

Claims

A resource request method includes:

Receiving, by the first multimedia system in the heterogeneous multimedia system, a call request for invoking a multimedia resource of the second multimedia system, where the heterogeneous multimedia system includes: the first multimedia system, the Said second multimedia system;

Transmitting, by the calling request, the multimedia resource according to a transcoding format required by the first multimedia system;

Transmitting the transcoded multimedia resource to the first multimedia system.
The method of claim 1, wherein the transcoding the multimedia resource according to a transcoding format required by the first multimedia system comprises:

Transcoding the multimedia resource according to a transcoding format required by the first multimedia system; or

Transmitting the multimedia resource according to a code stream feature of the first multimedia system.
The method according to claim 2, wherein the information required to transcode the multimedia resource according to the code stream feature comprises: resolution, frame rate, code rate, and algorithm used for transcoding.
The method of claim 1, wherein before receiving the call request, the method further comprises:

Obtaining multimedia resource information of the second multimedia system;

And generating the call request according to the multimedia resource information.
The method according to any one of claims 1-4, wherein transcoding the multimedia resource according to a transcoding format required by the first multimedia system comprises:

Decoding the multimedia resource;

Recoding the decoded multimedia resource according to a transcoding format of the first multimedia system.
A resource requesting device includes:

a first receiving module, configured to receive a call request for calling a multimedia resource of the second multimedia system sent by the first multimedia system in the heterogeneous multimedia system, where the heterogeneous multimedia system includes: a multimedia system, the second multimedia system;

a transcoding module, configured to be connected to the first receiving module, configured to transcode the multimedia resource according to a transcoding format required by the first multimedia system, triggered by the calling request;

The sending module is connected to the transcoding module and configured to send the transcoded multimedia resource to the first multimedia system.
The apparatus according to claim 6, wherein said transcoding module is set to be in accordance with said first multimedia system Converting the multimedia resource by a transcoding format; or transcoding the multimedia resource according to a code stream feature of the first multimedia system.
The apparatus according to claim 7, wherein the transcoding module transcodes the multimedia resource according to a code stream feature of the first multimedia system to require at least the following information: resolution, frame rate, and code rate. , the algorithm used for encoding.
The apparatus of claim 7 wherein said apparatus further comprises:

An acquiring module, configured to be connected to the first receiving module, configured to acquire multimedia resource information of the second multimedia system;

And generating, by the module, a connection module, configured to generate the call request according to the multimedia resource information.
The apparatus of any one of claims 6-9, wherein the transcoding module comprises:

a decoding unit, configured to decode the multimedia resource;

And a re-encoding unit configured to re-encode the decoded multimedia resource according to a transcoding format of the first multimedia system.