WO2013091243A1

WO2013091243A1 - Media stream data transmission method in cloud computing system and physical server

Info

Publication number: WO2013091243A1
Application number: PCT/CN2011/084547
Authority: WO
Inventors: 高小宏; 耿长东; 吴晓明
Original assignee: 华为技术有限公司
Priority date: 2011-12-23
Filing date: 2011-12-23
Publication date: 2013-06-27
Also published as: CN103503410A; CN103503410B

Abstract

Provided are a media stream data transmission method in a cloud computing system and a physical server. In the present invention, although the media stream data between a TC and a media gateway passes through a VM, the VM and a soft terminal need not perform coding/decoding processing on the media stream data, so that the media stream data is transmitted transparently between the VM and the soft terminal, thus reducing the transmission time delay and improving the voice/video quality. Moreover, since the VM and the soft terminal need not perform coding/decoding processing on the media stream data, the CPU occupation rate in the VM will not be high, and the number of VMs which can be operated by the corresponding physical server can be further increased, increasing the resource utilization rate of the physical server.

Description

The present invention relates to communication technologies, and in particular, to a method and a physical server for transmitting media stream data in a cloud computing system. Background technique

In a cloud computing system, multiple virtual machines (VMs) can be run on each physical server. The cloud terminal (Thin Client, TC for short) can log in to a VM and run the VM. Installed soft terminal

(The software installed on the VM with the function of making and receiving calls) performs communication services. For example: The TC logs in to the VM through the Remote Desktop Protocol and runs the soft terminal installed on the VM. In the prior art, the soft terminal decodes the received downlink data packet to obtain media stream data, which is then encoded by the VM and transmitted to the TC. Otherwise, the VM decodes the received uplink data packet to obtain media stream data. And then encoded by the soft terminal and transmitted to the media gateway through the streaming media transmission protocol.

However, the media stream data is transmitted between the TC and the VM. Since the VM and the soft terminal need to encode and decode the received media stream data, the transmission delay is increased and the voice/video quality is degraded. Summary of the invention

The present invention provides a method and a physical server for transmitting media stream data in a cloud computing system, which are used to reduce transmission delay and improve voice/video quality.

In one aspect, a method for transmitting media stream data in a cloud computing system is provided, where the cloud computing system includes a physical server, where the at least one VM runs, the TC logs in to the VM, and the TC runs the VM. The soft terminal installed on the method includes:

The VM obtains media stream codec information supported by the TC;

In the process of establishing a call connection between the soft terminal and the media gateway, the VM sends the media stream codec information of the current call to the TC; The VM transmits the received first media stream data sent by the TC to the media gateway by using the soft terminal, where the first media stream data is encoded and decoded by the TC by using the media stream of the current call. Obtaining, or transmitting, by the information encoding process, the second media stream data sent by the media gateway received by the soft terminal to the TC, where the second media stream data is used by the media gateway to use the current call The media stream codec information encoding process is obtained, so that the TC performs decoding processing on the second media stream data by using the media stream codec information of the current call.

In another aspect, a physical server is provided in the cloud computing system, where the physical server runs at least one VM, and the TC logs in to the VM, and the TC runs a soft terminal installed on the VM, where the VM includes:

a registration unit, configured to obtain media stream codec information supported by the TC;

a sending unit, configured to send media stream codec information of the current call to the TC during a process of establishing a call connection between the soft terminal and the media gateway by the soft terminal;

a transmitting unit, configured to transmit the received first media stream data sent by the TC to the media gateway by using the soft terminal, where the first media stream data is used by the TC to use the media stream of the current call Obtaining, after the codec information encoding process, or transmitting the second media stream data sent by the media gateway received by the soft terminal to the TC, where the second media stream data is used by the media gateway The media stream codec information encoding process of the secondary call is obtained, so that the TC performs decoding processing on the second media stream data by using the media stream codec information of the current call.

According to the foregoing technical solution, in the embodiment of the present invention, although the media stream data between the TC and the media gateway passes through the VM, the VM and the soft terminal do not need to encode and decode the media stream data, so that the media stream data is in the VM and the soft. Transparent transmission between terminals reduces transmission delay and improves voice/video quality. In addition, since both the VM and the soft terminal do not need to encode and decode the media stream data, the CPU usage in the VM is not high, and the number of VMs that can be operated by the corresponding physical server can be further increased, thereby improving the physics. Server resource utilization. DRAWINGS The drawings used in the embodiments or the description of the prior art are briefly described. It is obvious that the drawings in the following description are some embodiments of the present invention, and are not creative to those skilled in the art. Other drawings can also be obtained from these drawings on the premise of labor.

1 is a schematic flowchart of a method for transmitting media stream data in a cloud computing system according to an embodiment of the present invention;

2 is a logic architecture diagram applicable to the embodiment corresponding to FIG. 1;

3 is a schematic flowchart of a method for transmitting media stream data in a cloud computing system according to another embodiment of the present invention;

4 is a schematic flowchart of a method for transmitting media stream data in a cloud computing system according to another embodiment of the present invention;

FIG. 5 is a schematic flowchart of a method for transmitting media stream data in a cloud computing system according to another embodiment of the present invention;

6 is a schematic flowchart of a method for transmitting media stream data in a cloud computing system according to another embodiment of the present invention;

FIG. 7 is a physical server in a cloud computing system according to another embodiment of the present invention. 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. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

FIG. 1 is a schematic flowchart of a method for transmitting media stream data in a cloud computing system according to an embodiment of the present invention. In a cloud computing system, multiple VMs can be run on each physical server, and the TC can log in to the VM and run the VM. The soft terminal installed on the network performs communication services. For example, the TC logs in to the VM through the remote desktop protocol and runs the soft terminal installed on the VM. As shown in FIG. 1, the method for transmitting media stream data in the cloud computing system of this embodiment may include:

101. The VM obtains media stream codec information supported by the TC.

The media stream codec information supported by the TC may include but is not limited to G.723.1. G.71 1. At least one of the speech codec modes of G.729, H.261, H.263, and H.264. For example, the TC can log in to the VM through the remote desktop protocol and register with the VM, so that the VM obtains the media stream codec information supported by the TC sent by the TC.

Optionally, before 101, the TC may further obtain the configured media stream codec information supported by the TC.

102. In the process of establishing a call connection between the soft terminal and the media gateway, the VM sends the media stream codec information of the current call to the TC, where the media stream codec information of the current call is The soft terminal obtains the media stream codec information supported by the TC obtained from the VM and the media stream decoding information supported by the media gateway obtained from the media gateway, and the media stream codec supported by the TC obtained by using the soft terminal from the VM. Information selection

It should be noted that the VM in this embodiment may include a plurality of application programming interfaces (APIs) for implementing different functions. The specific description may be as follows.

Optionally, the VM may include a third API, where the third API is used to provide the foregoing TC-supported media stream codec information to the soft terminal. For example, before the soft terminal establishes a call connection between the soft terminal and the media gateway, when the soft terminal invokes the third API (for example, a codec acquisition API), the VM may send the voice to the soft terminal. The media stream codec information supported by the TC, so that the soft terminal selects the media stream of the current call according to the media stream codec information supported by the TC and the media stream codec information supported by the media gateway obtained from the media gateway. Decoding the information, or sending the media stream codec information supported by the TC to the media gateway.

In this embodiment, when the soft terminal installed on the VM is run by the TC, when the soft terminal invokes the codec acquisition API of the VM where the soft terminal is located, the VM sends the obtained media stream codec information supported by the TC to the soft terminal. . The foregoing call may be a call initiated by the soft terminal as the calling terminal, or may be a call accepted by the soft terminal as the called terminal.

For example, if the soft terminal initiates a call as the calling terminal, in the process of establishing the call connection between the soft terminal and the media gateway, the soft terminal may send the media stream codec information supported by the TC to the media. Gateway. The media gateway receives the media supported by the TC. After the body stream codec information, according to the media stream codec information supported by the media gateway and the media stream codec information supported by the TC obtained from the soft terminal, the media stream of the current call is selected by using the intersection selection mode. The information is decoded and sent to the soft terminal, and the soft terminal sends the media stream codec information of the current call to the TC through the VM.

For example, if the soft terminal accepts the call as the called terminal, the soft terminal receives the media stream supported by the media gateway sent by the media gateway in the process of establishing the call connection between the soft terminal and the media gateway. Decode the information. The soft terminal uses the media stream codec information supported by the TC and the media stream codec information supported by the media gateway obtained from the media gateway, and selects the media stream codec information of the current call by using the intersection selection mode, and The media stream codec information of the current call is sent to the TC through the VM.

Optionally, the VM may include a fourth API, where the fourth API is used to provide the foregoing TC with the media stream codec information of the current call. For example, in the process of establishing a call connection between the soft terminal and the media gateway by the soft terminal, when the soft terminal invokes the fourth API (for example, a codec selected API), the VM may send the message to the TC. The media stream codec information of the above call.

Optionally, the VM may include a fifth API, where the fifth API is used to provide the TC with the media stream codec information of the current call after the update. For example: during or after the above-mentioned soft terminal establishes a call connection between the soft terminal and the media gateway, when the soft terminal invokes the fifth API (for example, a codec modification API), the VM may The TC sends the media stream codec information of the above call after the update. There are many reasons for the change of the media stream codec information of the current call, which is not limited in this embodiment.

103. The VM transmits, by using the soft channel, the first media stream data that is sent by the TC to the media gateway, where the first media stream data is obtained by the TC by using the media stream codec information of the current call. Or transmitting the second media stream data sent by the media gateway received by the soft terminal to the TC, where the second media stream data is obtained by the media gateway by using the media stream codec information encoding process of the current call. And causing the TC to perform decoding processing on the second media stream data by using the media stream codec information of the current call.

For example: For the upstream media stream data, the TC can use the obtained media of the call. The body stream codec information obtains the first media stream data after encoding the media stream data to be transmitted, and sends the data to the VM. The VM may further include a first API, where the first API is configured to provide the first media stream data to the soft terminal. After the VM receives the first media stream data, when the soft terminal invokes the first API (for example, the media stream input API), the VM may send the first media stream data to the soft terminal, so that the soft terminal is used. Sending the first media stream data to the media gateway.

For example, for the downlink media stream data, the media gateway may use the media stream codec information of the current call to encode the media stream data to be sent, and then obtain the second media stream data, and send the data to the soft terminal. The VM may further include a second API, where the second API is configured to provide the second media stream data to the TC. After the soft terminal receives the second media stream data, when the soft terminal invokes the second API (for example, the media stream output API), the VM may send the second media stream data to the TC.

Optionally, the foregoing VM may include a sixth API, where the sixth API is used to provide call control information corresponding to the call control operation to the TC, where the call control operation is performed by the user using the TC on the soft terminal by using the TC. trigger. For example: before or during the process of establishing a call connection between the soft terminal and the media gateway by the soft terminal, when the soft terminal invokes the sixth API (for example, a parameter adjustment API), the VM may be sent to the TC. The call control information is sent, so that the TC controls the current call according to the call control information, so that the control of the call is completed on the TC. For example: Audio parameters (for example: volume, mute/restore, etc.) Adjust at least one of the operation and video parameters (for example: local/peer video window size, position, off/on, etc.) adjustment operations.

For example, the user can perform the volume adjustment operation on the soft terminal through the TC, the soft terminal can call the volume adjustment API, and the VM can send the volume control information to the TC, and the TC adjusts the volume according to the volume control information.

For example, the user performs the output mute operation on the soft terminal through the TC, and the soft terminal pauses to call the media stream output API, and the VM can pause to send the media stream data to the TC; the user performs the input mute operation on the soft terminal through the TC, and the soft The terminal can call the input mute API, and the VM can send the input mute control information to the TC, and the TC can pause to send the media stream data to the VM.

For example: The user performs video window size adjustment operation on the soft terminal through the TC, the soft terminal The video window size adjustment API may be invoked, and the VM may send the video window size control information to the TC, and the TC adjusts the video window size according to the video window size control information.

For example: the user performs video window position adjustment operation on the soft terminal through the TC, the soft terminal can call the video window position adjustment API, and the VM can send the video window position control information to the TC, and the TC performs the video window position control information according to the video window position control information. Video window position adjustment.

For example, the user performs the peer video window closing operation on the soft terminal through the TC, and the soft terminal pauses to call the media stream output API, and the VM can pause to send the media stream data to the TC; the user performs the local end on the soft terminal through the TC. When the video window is closed, the soft terminal can call the local video window to close the API, and the VM can send the local video window close control information to the TC, and the TC can pause to send the media stream data to the VM.

Optionally, in this embodiment, although the VM and the soft terminal do not need to perform codec processing on the media stream data, the soft terminal may further transmit the first media sent by the TC, because the media stream data still passes through the VM. The stream data is stored on the VM, or the second media stream data sent by the media gateway may be further stored on the VM, thereby realizing recording of the media stream data (for example, recording or recording).

As shown in FIG. 2, in the process of establishing a call connection between the soft terminal and the media gateway by the soft terminal, the soft terminal can perform control signaling interaction between the TC and the media gateway through the VM; during the call, the TC and the Although the media stream data between the media gateways passes through the VM, the VM and the soft terminal do not need to encode and decode the media stream data, and the media stream data is transparently transmitted between the VM and the soft terminal.

In this embodiment, although the media stream data between the TC and the media gateway passes through the VM, the VM and the soft terminal do not need to encode and decode the media stream data, so that the media stream data is transparently transmitted between the VM and the soft terminal. , which reduces transmission delay and improves voice/video quality. In addition, since both the VM and the soft terminal do not need to encode and decode the media stream data, the CPU usage in the VM is not high, and the number of VMs that can be operated by the corresponding physical server can be further increased, thereby improving the physics. Server resource utilization.

In order to make the method provided by the embodiment of the present invention clearer, a specific implementation will be exemplified below.

FIG. 3 is a schematic flowchart of a method for transmitting media stream data in a cloud computing system according to another embodiment of the present invention. In this embodiment, a soft terminal initiates a call as a calling terminal. As shown in Figure 3, The method for transmitting media stream data in the cloud computing system of this embodiment may include:

301. The TC obtains the supported media stream codec information of the TC.

302. The TC logs in to the VM through the remote desktop protocol to register, to send the media stream codec information supported by the TC to the VM.

303. The TC runs a soft terminal installed on the VM, and when the soft terminal invokes the codec to obtain the API,

The VM sends the media stream codec information supported by the TC to the soft terminal;

304. The user triggers the soft terminal to send an invite (Invite) call message to the media gateway, where the invite call message carries the media stream codec information supported by the TC;

For example, the operation instruction of the user's call is sent to the soft terminal, and the soft terminal sends an invitation call message to the media gateway according to the instruction, and the message body of the invitation call message carries the media stream codec information supported by the TC.

305. The media gateway selects the media stream codec information of the current call according to the media stream codec information supported by the media gateway and the obtained media stream codec information supported by the TC, and sends the media stream codec information of the current call to the soft terminal. Replying to a call message, the answering call message carries the media stream codec information of the current call;

At this point, the soft terminal acts as the calling terminal to initiate the call connection establishment.

306. The soft terminal invokes the codec selection API, and the VM sends the media stream codec information of the current call to the TC.

307. The media stream data between the TC and the media gateway is transparently transmitted between the VM and the soft terminal. For details, refer to related content in the embodiment corresponding to FIG. 1, and details are not described herein again. It should be noted that: if the media stream data is audio data, after the TC decodes the received audio data, the driver outputs the output; if the media stream data is video data, the TC decodes the received video data, and then Further, according to the received video control information sent by the soft terminal, the edge of the video image after the decoding process is corresponding to the video frame of the soft terminal.

In this embodiment, after the soft terminal is established as the calling connection initiated by the calling terminal, the media stream data between the TC and the media gateway passes through the VM, but the VM and the soft terminal do not need to encode and decode the media stream data. , the media stream data is transparently transmitted between the VM and the soft terminal, thereby reducing the transmission delay and improving the voice/video quality. In addition, since both the VM and the soft terminal do not need to encode and decode the media stream data, the VM The CPU usage is not high, which can further increase the number of VMs that can be operated by the corresponding physical server, thereby improving the resource utilization of the physical server.

FIG. 4 is a schematic flowchart of a method for transmitting media stream data in a cloud computing system according to another embodiment of the present invention. In this embodiment, a soft terminal initiates a call as a called terminal. As shown in FIG. 4, the method for transmitting media stream data in the cloud computing system of this embodiment may include:

401. The TC obtains the supported media stream codec information of the TC.

402. The TC registers with the VM through the remote desktop protocol to register, to send the media stream codec information supported by the TC to the VM.

403. The TC runs a soft terminal installed on the VM. When the soft terminal invokes the codec to obtain the API, the VM sends the media stream codec information supported by the TC to the soft terminal.

404. The calling party triggers the media gateway to send an invite (Invite) call message to the soft terminal, where the invite call message carries the media stream codec information supported by the media gateway.

405. The soft terminal selects the media stream codec information of the current call according to the obtained media stream codec information supported by the TC and the media stream codec information supported by the media gateway, and selects the media stream codec information of the current call, and sends the media stream codec information to the media gateway. Send a reply message, where the answer call message carries the media stream codec information of the current call;

So far, the soft terminal as the called terminal accepts the call connection establishment.

406. The soft terminal invokes the codec selection API, and the VM sends the media stream codec information of the current call to the TC.

407. The media stream data between the TC and the media gateway is transparently transmitted between the VM and the soft terminal. For details, refer to related content in the embodiment corresponding to FIG. 1, and details are not described herein again. It should be noted that: if the media stream data is audio data, after the TC decodes the received audio data, the driver outputs the output; if the media stream data is video data, the TC decodes the received video data, and then Further, according to the received video control information sent by the soft terminal, the edge of the video image after the decoding process is corresponding to the video frame of the soft terminal.

In this embodiment, after the soft terminal is used as the called terminal to complete the call connection establishment, the media stream data between the TC and the media gateway passes through the VM, but the VM and the soft terminal do not need to encode and decode the media stream data. , the media stream data is transparently transmitted between the VM and the soft terminal, thereby reducing the transmission delay and improving the voice/video quality. In addition, by The VM and the soft terminal do not need to encode and decode the media stream data, so that the CPU usage in the VM is not high, and the number of VMs that can be operated by the corresponding physical server is further increased, thereby improving the physical server. Resource utilization.

FIG. 5 is a schematic flowchart of a method for transmitting media stream data in a cloud computing system according to another embodiment of the present invention. In the embodiment corresponding to FIG. 3 and FIG. 4, after 307 or 407, the media gateway further initiates codec decoding. Update process. As shown in FIG. 5, the method for transmitting media stream data in the cloud computing system of this embodiment may include:

501, the media gateway sends a codec modification (Modify) message to the soft terminal, where the codec modification message carries the media stream codec information of the current call after the update;

502. The soft terminal sends a codec modification response message to the media gateway.

503. The soft terminal invokes the codec modification API, and the VM sends the media stream codec information of the current call after the foregoing update to the TC.

504. The media stream data between the TC and the media gateway is transparently transmitted between the VM and the soft terminal. For details, refer to related content in the embodiment corresponding to FIG. 1, and details are not described herein again. It should be noted that: if the media stream data is audio data, after the TC decodes the received audio data, the driver outputs the output; if the media stream data is video data, the TC decodes the received video data, and then Further, according to the received video control information sent by the soft terminal, the edge of the video image after the decoding process is corresponding to the video frame of the soft terminal.

In this embodiment, the soft terminal sends the media stream codec information of the current call after the update to the TC, so that the TC and the media gateway can use the media stream codec information of the current call after the update, and the media stream data. The codec process is performed. Although the media stream data between the TC and the media gateway passes through the VM, the VM and the soft terminal do not need to encode and decode the media stream data, so that the media stream data is transparently transmitted between the VM and the soft terminal. , thereby reducing transmission delay and improving voice/video quality. In addition, since both the VM and the soft terminal do not need to encode and decode the media stream data, the CPU usage in the VM is not high, and the number of VMs that can be operated by the corresponding physical server can be further increased, thereby improving the physics. Server resource utilization.

FIG. 6 is a schematic flowchart of a method for transmitting media stream data in a cloud computing system according to another embodiment of the present invention. In the embodiment corresponding to FIG. 3 and FIG. 4, after 307 or 407, the medium The body gateway further initiates a codec update process. As shown in FIG. 6, the method for transmitting media stream data in the cloud computing system of this embodiment may include:

601. The soft terminal sends a codec modification (Modify) message to the media gateway, where the codec modification message carries the media stream codec information of the current call after the update;

602. The media gateway sends a codec modification response message to the soft terminal.

603. The soft terminal invokes the codec modification API, and the VM sends the media stream codec information of the current call after the foregoing update to the TC.

604. The media stream data between the TC and the media gateway is transparently transmitted between the VM and the soft terminal. For details, refer to related content in the embodiment corresponding to FIG. 1, and details are not described herein again. It should be noted that: if the media stream data is audio data, after the TC decodes the received audio data, the driver outputs the output; if the media stream data is video data, the TC decodes the received video data, and then Further, according to the received video control information sent by the soft terminal, the edge of the video image after the decoding process is corresponding to the video frame of the soft terminal.

It should be noted that the VM involved in the embodiment of the present invention sends any information to the soft terminal (for example, the media stream codec information supported by the TC), and specifically, the operating system or application management software in the VM sends the information to the soft terminal. The embodiment of the present invention does not limit this, as long as the above communication function can be implemented.

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 in accordance with the present invention, certain steps may be in other orders or Time to proceed. In addition, 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.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

FIG. 7 is a physical server in a cloud computing system according to another embodiment of the present invention. A plurality of VMs can be run on a physical server. The TC can log in to the VM and run the soft terminal installed on the VM to perform communication services. For example, the TC passes. The Remote Desktop Protocol logs in to the VM and runs the soft terminal installed on the VM. As shown in FIG. 7, the VM of this embodiment may include a registration unit 71, a transmitting unit 72, and a transmission unit 73. The registration unit 71 is configured to obtain the media stream codec information supported by the TC, and the sending unit 72 is configured to send the message to the TC in the process of establishing the call connection between the soft terminal and the media gateway by the soft terminal. The media stream codec information of the secondary call, the media stream codec information of the current call is used by the soft terminal according to the media stream codec information supported by the TC obtained from the VM, and the media gateway supported by the media gateway. The stream coding and decoding information and the media stream codec information supported by the TC obtained by the foregoing soft terminal from the VM are selected; the transmission unit 73 is configured to transmit the received first media stream data sent by the TC to the foregoing by using the soft terminal. The media gateway, the first media stream data is obtained by the TC using the media stream codec information encoding process of the current call, or the second media stream data sent by the media gateway received by the soft terminal is transmitted to the TC. The second media stream data is used by the media gateway to use the media of the current call. After obtaining the information stream codec encoding process, so that the above-mentioned TC of the second media stream decoding the data stream using the above media codec information of the current call.

The functions of the VMs in the embodiments corresponding to the foregoing FIG. 1, FIG. 3, FIG. 4, FIG. 5 and FIG. 6 can be implemented by the VM running on the physical server in the cloud computing system provided by this embodiment.

For example, for the uplink media stream data, the TC may use the obtained media stream codec information of the current call to encode the media stream data to be sent, and then obtain the first media stream data, and send the data to the VM. The VM may further include a first API, where the first API is configured to provide the first media stream data to the soft terminal. The transmitting unit 73 in this embodiment may be specifically configured to: when the soft terminal invokes the first API, send the first media stream data to the soft terminal, so that the soft terminal sends the information to the media gateway. The first media stream data is described.

For example, for the downlink media stream data, the media gateway may use the media stream codec information of the current call to encode the media stream data to be sent, and then obtain the second media stream data, and send the data to the soft terminal. The VM may further include a second API, where the second API is configured to provide the second media stream data to the TC. The transmitting unit 73 in this embodiment may be specifically configured to: when the soft terminal invokes the second API, send the second media stream data to the TC.

Optionally, the VM may include a third API, where the third API is used to provide the foregoing TC-supported media stream codec information to the soft terminal. For example, the sending unit 72 in this embodiment may be further configured to: when the soft terminal invokes the third API, send the media stream codec information supported by the TC to the soft terminal, so that the soft terminal supports according to the TC. The media stream codec information and the media stream codec information supported by the media gateway obtained from the media gateway select the media stream codec information of the current call, or send the media stream codec information supported by the TC to the media gateway.

Optionally, the VM may include a fourth API, where the fourth API is used to provide the foregoing TC with the media stream codec information of the current call. For example, the sending unit 72 in this embodiment may be specifically configured to: when the soft terminal invokes the fourth API, send the media stream codec information of the current call to the TC.

Optionally, the VM may include a fifth API, where the fifth API is used to provide the TC with the media stream codec information of the current call after the update. For example, the sending unit 72 in this embodiment may be further configured to: when the soft terminal invokes the fifth API, send the media stream codec information of the current call after the TC sends the update.

Optionally, the foregoing VM may include a sixth API, where the sixth API is used to provide call control information corresponding to the call control operation to the TC, where the call control operation is performed by the user using the TC on the soft terminal by using the TC. trigger. For example, the sending unit 72 in this embodiment may be further configured to: when the soft terminal invokes the sixth API, send the call control information to the TC, so that the TC performs the current call according to the call control information. control.

In this embodiment, although the media stream data between the TC and the media gateway passes through the VM, the VM and the soft terminal do not need to encode and decode the media stream data, so that the media stream data is in the VM. Transparent transmission with soft terminals reduces transmission delay and improves voice/video quality. In addition, since both the VM and the soft terminal do not need to encode and decode the media stream data, the CPU usage in the VM is not high, and the number of VMs that can be operated by the corresponding physical server can be further increased, thereby improving the physics. Server resource utilization.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can be referred to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional units are stored in a storage medium and include a number of instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform some of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. Medium.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, and not The invention is described in detail with reference to the foregoing embodiments, and those skilled in the art should understand that the technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced. These modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Claim

A method for transmitting media stream data in a cloud computing system, wherein the cloud computing system comprises a physical server, wherein the physical server runs at least one virtual machine VM, and the thin terminal TC logs in to the VM. The TC runs the soft terminal installed on the VM, and the method includes:

The VM obtains media stream codec information supported by the TC;

In the process of establishing a call connection between the soft terminal and the media gateway, the VM sends the media stream codec information of the current call to the TC;

The VM transmits the received first media stream data sent by the TC to the media gateway by using the soft terminal, where the first media stream data is encoded and decoded by the TC by using the media stream of the current call. Obtaining, or transmitting, by the information encoding process, the second media stream data sent by the media gateway received by the soft terminal to the TC, where the second media stream data is used by the media gateway to use the current call The media stream codec information encoding process is obtained, so that the TC performs decoding processing on the second media stream data by using the media stream codec information of the current call.

2. The method according to claim 1, wherein the media stream codec information of the current call is coded and decoded by the soft terminal according to the media stream supported by the TC obtained from the VM. The media stream codec information supported by the media gateway obtained by the media gateway is selected by the TC-supported media stream codec information obtained by the soft terminal from the VM

The method according to claim 1 or 2, wherein the VM includes a first API, and the first API is configured to provide the first media stream data to the soft terminal; Transmitting the received first media stream data sent by the TC to the media gateway by using the soft terminal, including:

When the soft terminal invokes the first API, the VM sends the first media stream data to the soft terminal, so that the soft terminal sends the first media stream data to the media gateway.

The method according to claim 1 or 2, wherein the VM includes a second API, and the second API is configured to provide the second media stream data to the TC; Transmitting, by the media terminal, the second media stream data sent by the media gateway to The TC includes:

When the soft terminal invokes the second API, the VM sends the second media stream data to the TC.

The method according to any one of claims 1 to 4, wherein the VM includes a third API, and the third API is configured to provide the TC-supported media stream to the soft terminal. The method further includes: before the process of establishing a call connection between the soft terminal and the media gateway by the soft terminal, the method further includes:

When the soft terminal invokes the third API, the VM sends the media stream codec information supported by the TC to the soft terminal;

The soft terminal selects the media stream codec information of the current call according to the media stream codec information supported by the TC and the media stream codec information supported by the media gateway obtained by the media gateway, or sends the media stream codec information to the media The gateway sends the media stream codec information supported by the TC.

The method according to any one of claims 1 to 5, wherein the VM includes a fourth API, and the fourth API is configured to provide the TC with the media stream of the current call. Codec information; the VM sends the media stream codec information of the current call to the TC, including:

When the soft terminal invokes the fourth API, the VM sends the media stream codec information of the current call to the TC.

The method according to any one of claims 1 to 6, wherein the VM includes a fifth API, and the fifth API is used to provide the TC with the current call after the update. The media stream codec information; during or after the soft terminal establishes a call connection between the soft terminal and the media gateway, the method further includes:

When the soft terminal invokes the fifth API, the VM sends the updated media stream codec information of the current call to the TC.

8. The method according to any one of claims 1 to 7, wherein

The VM includes a sixth API, where the sixth API is configured to provide call control information corresponding to the call control operation to the TC, where the call control operation is performed by the user using the TC on the soft terminal by using the TC. Before or during the process of establishing a call connection between the soft terminal and the media gateway, the method further includes:

When the soft terminal invokes the sixth API, the VM sends the call to the TC The control information is called to enable the TC to control the current call according to the call control information.

The method according to any one of claims 1 to 8, wherein the method further comprises:

The soft terminal saves the first media stream data sent by the TC on the VM, or saves the second media stream data sent by the media gateway on the VM.

A physical server in a cloud computing system, wherein the physical server runs at least one virtual machine VM, the thin terminal TC logs in to the VM, and the TC runs a soft terminal installed on the VM. The VM includes:

The physical server according to claim 10, wherein the media stream codec information of the current call sent by the sending unit to the TC is obtained by the soft terminal according to the obtained from the VM. Media stream codec information supported by the TC and media stream codec information supported by the media gateway obtained from the media gateway, or encoded and decoded by the media gateway according to the media stream supported by the media gateway The media stream codec information supported by the TC obtained by the soft terminal from the VM is selected.

The physical server according to claim 10 or 11, wherein the VM includes a first API, and the first API is configured to provide the first media stream data to the soft terminal; The transmission unit is specifically used for

And when the soft terminal invokes the first API, sending the first media stream data to the soft terminal, so that the soft terminal sends the first media stream data to the media gateway.

The physical server according to claim 10 or 11, wherein the VM includes a second API, and the second API is configured to provide the second media stream data to the TC; The transmission unit is specifically used for

And when the soft terminal invokes the second API, sending the second media stream data to the TC.

The physical server according to any one of claims 10 to 13, wherein the VM includes a third API, and the third API is configured to provide the TC-supported media to the soft terminal. Stream coding and decoding information; the sending unit is further used for

Transmitting, by the soft terminal, the media stream codec information supported by the TC to the soft terminal, so that the soft terminal encodes and decodes the information and the slave media according to the media stream supported by the TC. The media stream codec information supported by the media gateway obtained by the gateway selects the media stream codec information of the current call, or sends the media stream codec information supported by the TC to the media gateway.

The physical server according to any one of claims 10 to 14, wherein the VM includes a fourth API, and the fourth API is used to provide the media of the current call to the TC. Stream codec information; the sending unit is specifically configured to

When the soft terminal invokes the fourth API, the media stream codec information of the current call is sent to the TC.

The physical server according to any one of claims 10 to 15, wherein the VM includes a fifth API, and the fifth API is used to provide the current after the update to the TC. Media stream codec information of the call; the sending unit is also used to

And when the soft terminal invokes the fifth API, sending, to the TC, the media stream codec information of the current call after the update.

The physical server according to any one of claims 10 to 16, wherein the VM includes a sixth API, and the sixth API is configured to provide call control corresponding to the call control operation to the TC. Information, the call control operation is triggered by the user using the TC on the soft terminal by using the TC; the sending unit is further used for

And when the soft terminal invokes the sixth API, sending the call control information to the TC, so that the TC controls the current call according to the call control information.