CN112995707A - System, method and equipment based on cross-network audio and video transcoding scheduling - Google Patents
System, method and equipment based on cross-network audio and video transcoding scheduling Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/233—Processing of audio elementary streams
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- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
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- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
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Abstract
The invention belongs to the technical field of audio and video information, and particularly relates to a system, a method and equipment based on cross-network audio and video transcoding scheduling, aiming at solving the problems that the existing transcoding scheduling method in the prior art does not consider the application scene of cross-network audio and video stream data distribution, only transcodes and distributes audio and video files, but does not transcode and distribute the audio and video stream data. The system based on the cross-network audio and video transcoding scheduling comprises an audio and video transcoding service module, an audio and video transcoding scheduling service module and a forwarding service module, can push audio and video streaming data in one network to another network, meets the application scene requirement of cross-network audio and video streaming data distribution, and realizes transcoding and distribution of audio and video files and audio and video streaming data.
Description
Technical Field
The invention belongs to the technical field of audio and video information, and particularly relates to a system, a method and equipment based on cross-network audio and video transcoding scheduling.
Background
In the field of video coding and decoding, there are many international standards which are generated at different times, and these standards often adopt different compression techniques and combinations thereof, and need to be decoded by different decoders before being played normally. In order to enhance the compatibility of decoding devices for different video compression standards, people usually use transcoding methods to convert video code streams of different standards into required formats to adapt to different application occasions.
Video transcoding is to convert an original compressed video signal into another video compression method, and the converted video and the original video may differ in frame rate, frame size, rate, compression format, mode, and the like. For example, in the field of video broadcasting, in order to reduce the complexity of a receiving end and adapt to a limited transmission bandwidth, it is necessary to convert video streams from different sources into a uniform format, such as the h.264 standard. The MPEG-2 standard is an original storage format of existing large amount of video data, so that the transcoding process of MPEG-2 to h.264 becomes one of the key technologies of a broadcast transmitting end. On the other hand, with the rapid development of handheld devices and wireless networks, more and more handheld devices are expected to support multimedia functions. The low bandwidth and high error rate of the wireless network, the processing capability of the handheld device and the resolution of the display are far inferior to those of a television set-top box, so that the original standard-definition or high-definition video is required to be edited and processed by reducing the time resolution, the spatial resolution and the quality, inserting a new station caption, synthesizing subtitles and the like so as to be suitable for being played on the handheld device. These applications all require transcoding of the video information.
In the prior art, an audio and video transcoding method is to select a transcoding service from an audio and video transcoding cluster to transcode an audio and video file, which only transcodes and distributes audio and video files in a single network, and does not consider an application scene of cross-network audio and video stream data distribution. In addition, the existing transcoding scheduling method only transcodes and distributes the audio and video files and does not transcode and distribute the audio and video stream data.
Disclosure of Invention
The method aims to solve the problems in the prior art, namely the existing transcoding scheduling method in the prior art does not consider the application scene of cross-network audio and video stream data distribution, and only transcodes and distributes audio and video files, but does not transcode and distribute the audio and video stream data. The application provides a cross-network audio and video transcoding scheduling system in a first aspect, and the system comprises: the system comprises an audio and video transcoding service module, an audio and video transcoding scheduling service module and a forwarding service module.
The audio and video transcoding service module is configured to transcode and distribute audio and video code stream data with different formats in a network to specified audio and video format data, when the audio and video transcoding service module receives a stream pulling request, the audio and video resource ID is analyzed according to the stream pulling request, whether original stream information of audio and video resources to be pulled exists is judged, if yes, a stream pulling transcoding task is executed, and if not, a source returning request is sent to an audio and video transcoding scheduling service module in the internal network to obtain the original stream information of the resources.
The audio and video transcoding scheduling service module is configured to manage the audio and video transcoding service module and the distribution of transcoding tasks, and the audio and video transcoding scheduling service module can be simultaneously communicated with an internal network and an external network and pushes network information and an audio and video resource list to the audio and video transcoding scheduling service module in the external network; the audio and video transcoding scheduling service module can receive a source returning request of the audio and video transcoding service module in an internal network, and returns original stream information of audio and video resources for the audio and video transcoding service module to pull stream and transcode.
The forwarding service module is configured to be capable of simultaneously communicating an internal network and an external network on the basis of the function of the audio and video transcoding service module, and is used for pushing the audio and video stream data of the internal network to the external network and pulling the audio and video stream data of the external network to the internal network.
In some preferred technical schemes, the audio and video transcoding scheduling service module monitors the running state of the audio and video transcoding scheduling service in real time based on the scheduling result of each audio and video resource, adjusts a schedulable service queue according to the running state of the audio and video transcoding scheduling service, removes the disconnected audio and video transcoding service module from the schedulable service queue, and clears the scheduling result related to the disconnected audio and video transcoding service module.
In some preferable technical schemes, the audio/video transcoding scheduling service module can add the audio/video transcoding service module based on the system audio/video forwarding requirement, and add the newly added audio/video transcoding service module to the schedulable service queue.
In some preferable technical schemes, the audio and video transcoding scheduling service module has a unique code, the unique code belongs to the ID of the audio and video transcoding scheduling service module, and the audio and video transcoding scheduling service module can push the network information, the unique code and the audio and video resource list of the audio and video transcoding scheduling service module to an external network.
In some preferred technical schemes, the audio/video transcoding scheduling service module receives a scheduling request comprising an audio/video resource ID and a target audio/video stream parameter, and judges whether a transcoding scheduling result exists in a network of the audio/video transcoding scheduling service module according to the audio/video resource ID and the target audio/video stream parameter.
And if so, the audio and video transcoding scheduling service module generates an audio and video data stream address according to the scheduling result and the target audio and video stream parameter and returns the audio and video resources to the audio and video data stream address.
And if not, the audio and video transcoding scheduling service module judges whether the audio and video resource IDs belong to the same network.
And if the audio and video transcoding scheduling service modules belong to the same network, the audio and video transcoding scheduling service module selects the audio and video transcoding service module to transcode according to the load of each audio and video transcoding service and records a scheduling result, generates an audio and video data stream address according to the scheduling result and a target audio and video stream parameter and returns audio and video resources to the audio and video data stream address.
And if the audio and video transcoding scheduling service modules do not belong to the same network, the audio and video transcoding scheduling service module forwards the scheduling request to the audio and video transcoding scheduling service module in the network to which the audio and video resources belong.
In some preferred technical solutions, the audio/video transcoding service module receives a stream pulling request of a stream pulling client, where the stream pulling request includes audio/video resource ID information, and the audio/video transcoding service module determines whether the audio/video resource ID information includes original stream information of an audio/video resource to be pulled, if so, executes a stream pulling transcoding task, and if not, sends a source returning request for querying the original stream information of the audio/video resource to be pulled to an audio/video transcoding scheduling service module in an internal network.
The audio and video transcoding service module pulls original stream data of the streaming audio and video resources to be pulled according to original stream information of the streaming audio and video resources to be pulled returned by the audio and video transcoding scheduling service module, performs transcoding distribution on the original stream data of the streaming audio and video resources to be pulled, and pushes the streaming audio and video data to be pulled after transcoding distribution to a streaming client.
A second aspect of the present application provides a method based on cross-network audio/video transcoding scheduling, where the method is completed based on the system based on cross-network audio/video transcoding scheduling in any of the above technical solutions, and the method includes the following steps.
Step S100, the audio and video transcoding scheduling service module receives a scheduling request, wherein the scheduling request comprises an audio and video resource ID and a target audio and video stream parameter.
And step S200, the audio and video transcoding scheduling service module judges whether a transcoding scheduling result exists in the network according to the audio and video resource ID and the target audio and video stream parameter.
And step S300, if the scheduling result does not exist, the audio and video transcoding scheduling service module analyzes the audio and video resource ID, acquires the network in the audio and video resource ID and executes the step S500.
In step S400, if the scheduling result exists, step S600 is executed.
Step S500, the audio and video transcoding scheduling service module judges whether the audio and video resource IDs belong to the same network; if yes, the audio and video transcoding scheduling service module selects a transcoding task to distribute according to the load condition of each audio and video transcoding service module in the transcoding service list, records the scheduling result and executes the step S600.
And step S600, the audio and video transcoding scheduling service module generates an audio and video data stream address according to the scheduling result and the target audio and video stream parameter in the scheduling request.
And step S700, the audio and video transcoding scheduling service module returns the audio and video data stream address, and scheduling is finished.
The third aspect of the application provides a method based on cross-network audio and video transcoding scheduling, wherein the method is completed based on any one of the above technical schemes, the method is used for realizing the source return of cross-network audio and video transcoding scheduling between a first network and a second network, the first network comprises a first audio and video transcoding service module, a first audio and video transcoding scheduling service module and a first forwarding service module, and the second network comprises a second audio and video transcoding service module, a second audio and video transcoding scheduling service module and a second forwarding service module; the method comprises the following steps.
In step a10, a first forwarding service module in a first network receives a pull request from a pull client.
Step A20, the first forwarding service module obtains the audio and video resource ID according to the pull stream request.
Step a30, the first forwarding service module determines whether the original stream information of the audio/video resource already exists in the first network, and if not, the first forwarding service module sends a request for querying the original stream information of the audio/video resource to the first audio/video transcoding scheduling service module.
Step A40, the first audio/video transcoding scheduling service module analyzes the ID of the audio/video resource and acquires the information of the second network to which the audio/video resource belongs.
Step A50, the first audio/video transcoding scheduling service module sends an extranet transcoding scheduling request to the second audio/video transcoding scheduling service module.
And step A60, the second audio/video transcoding scheduling service module receives the extranet transcoding scheduling request, selects the second forwarding service module as a transcoding server, stores the scheduling result, and returns the scheduling result to the first audio/video transcoding scheduling service module.
And step A70, the first audio/video transcoding scheduling service module generates original stream information of the audio/video resources according to the returned scheduling result and returns the original stream information to the first forwarding service module.
Step A80, the first forwarding service module sends a pull stream request to the second forwarding service module according to the original stream information of the audio/video resource.
Step A90, the second forwarding service module obtains the audio/video resource ID according to the pull stream request.
Step A100, the second forwarding service module judges whether the original stream information of the audio and video resources exists, if so, the second forwarding service module sends a request for inquiring the original stream information of the audio and video resources to the second audio and video transcoding scheduling service module.
Step A110, the second audio/video transcoding scheduling service module returns the original stream information of the audio/video resources to the second forwarding service module.
Step A120, the second forwarding service module pulls an original audio and video data stream based on the original stream information of the audio and video resources.
Step A130, the second forwarding service module performs transcoding distribution on the original audio and video data stream.
Step A140, the second forwarding service module pushes the transcoded and distributed audio/video data to the first forwarding service module.
A150, a first forwarding service module receives audio and video data and performs transcoding distribution; the step can reduce the performance pressure of audio and video resources.
Step A160, the first forwarding service module pushes the audio and video data after transcoding and distribution to the stream pulling client.
A fourth aspect of the present application provides an apparatus comprising at least one processor; and a memory communicatively coupled to at least one of the processors; the memory stores instructions executable by the processor, and the instructions are used for being executed by the processor to implement the cross-network audio/video transcoding scheduling method according to any one of the above technical solutions.
A fifth aspect of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions for being executed by the computer to implement any one of the foregoing methods for scheduling audio/video transcoding across a network.
The invention has the beneficial effects.
The invention can realize the pushing of audio and video stream data in one network to another network based on the cross-network audio and video transcoding scheduling system, meets the application scene requirement of cross-network audio and video stream data distribution, and can transcode and distribute audio and video files as well as audio and video stream data.
The audio and video transcoding scheduling service module can record the information of all audio and video resources in the network to which the scheduling transcoding service selection strategy belongs, forward service information, a scheduling transcoding service list and a scheduling result list, can monitor the running condition of the transcoding service in the network to which the scheduling transcoding service module belongs in real time, has disaster tolerance capability and expansion capability, flexibly copes with system emergency, and ensures the normal running of the system.
The method based on cross-network audio and video transcoding scheduling provides a process of cross-network scheduling and backtracking of audio and video resources, and the method can accelerate the transcoding process and improve the transcoding efficiency.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an inter-network audio/video transcoding scheduling system according to an embodiment of the present invention.
Fig. 2 is a schematic flowchart of scheduling audio/video resources transcoding across networks according to an embodiment of the present invention.
Fig. 3 is a schematic flow diagram of a method for implementing an internal source return based on a cross-network audio/video transcoding scheduling system according to an embodiment of the present invention.
Fig. 4 is a schematic flow diagram of a method for implementing cross-network audio/video transcoding scheduling based on a cross-network audio/video transcoding scheduling system according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a computer system suitable for implementing the electronic device according to an embodiment of the present application.
Detailed Description
In order to make the embodiments, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
The invention relates to a cross-network-based audio and video transcoding scheduling system which comprises an audio and video transcoding service module, an audio and video transcoding scheduling service module and a forwarding service module.
The audio and video transcoding service module is configured to transcode and distribute audio and video code stream data with different formats in a network to specified audio and video format data, when the audio and video transcoding service module receives a stream pulling request, the audio and video resource ID is analyzed according to the stream pulling request, whether original stream information of audio and video resources to be pulled exists is judged, if yes, a stream pulling transcoding task is executed, and if not, a source returning request is sent to an audio and video transcoding scheduling service module in the internal network to obtain the original stream information of the resources.
The audio and video transcoding scheduling service module is configured to manage the audio and video transcoding service module and the distribution of transcoding tasks, and the audio and video transcoding scheduling service module can be simultaneously communicated with an internal network and an external network and pushes network information and an audio and video resource list to the audio and video transcoding scheduling service module in the external network; the audio and video transcoding scheduling service module can receive a source returning request of the audio and video transcoding service module in an internal network, and returns original stream information of audio and video resources for the audio and video transcoding service module to pull stream and transcode.
The forwarding service module is configured to be capable of simultaneously communicating an internal network and an external network on the basis of the function of the audio and video transcoding service module, and is used for pushing the audio and video stream data of the internal network to the external network and pulling the audio and video stream data of the external network to the internal network.
In order to more clearly explain the cross-network audio/video transcoding-based scheduling system of the present invention, a preferred embodiment of the present invention is described in detail below with reference to the accompanying drawings.
As a preferred embodiment of the present invention, the cross-network audio/video transcoding-based scheduling system of the present invention is shown in fig. 1, and includes a plurality of audio/video transcoding service modules, an audio/video transcoding scheduling service module, and a forwarding service module.
The audio and video transcoding service module is responsible for transcoding and distributing audio and video code stream data and can convert original audio and video streams into stream data in a specified audio and video format. The forwarding service module is responsible for pushing audio and video stream data of the intranet to the extranet and pulling the audio and video stream data of the extranet to the intranet. And the audio and video transcoding scheduling service module is responsible for management of the information of the intranet audio and video resources, management of the audio and video transcoding service and allocation of transcoding tasks.
Specifically, the audio and video transcoding service module can only be communicated with an internal network and is configured to transcode and distribute audio and video code stream data with different formats in the network to specified audio and video format data, when the audio and video transcoding service module receives a stream pulling request, the audio and video transcoding service module analyzes an audio and video resource ID and judges whether original stream information of audio and video resources to be pulled exists or not according to the stream pulling request, if yes, a stream pulling transcoding task is executed, and if not, a source returning request is sent to the audio and video transcoding scheduling service module in the internal network to obtain the original stream information of the resources.
Specifically, the audio and video transcoding scheduling service module is configured to manage the distribution of the audio and video transcoding service module and transcoding tasks, and the audio and video transcoding scheduling service module can be simultaneously communicated with an internal network and an external network and pushes network information and an audio and video resource list of the audio and video transcoding scheduling service module to the audio and video transcoding scheduling service module in the external network; the audio and video transcoding scheduling service module can receive a source returning request of the audio and video transcoding service module in an internal network, and returns original stream information of audio and video resources for the audio and video transcoding service module to pull stream and transcode.
The audio and video transcoding scheduling service module has a unique code, can simultaneously communicate an internal network and an external network, and can push own network information, the unique code and an audio and video resource list to other audio and video transcoding scheduling service modules in the external network in a configuration mode. Meanwhile, the audio and video transcoding scheduling service module can receive a source returning request of the audio and video transcoding service module in an internal network, and returns original stream information of audio and video resources for pulling and transcoding by the audio and video transcoding service module.
Furthermore, the audio and video transcoding scheduling service module can also record the scheduling result of each audio and video resource, monitor the running state of the audio and video transcoding scheduling service in real time based on the scheduling result of each audio and video resource, and adjust the schedulable service queue according to the running state of the audio and video transcoding scheduling service. Namely, the method has disaster tolerance capability, and if a certain audio/video transcoding service is disconnected, the disconnected audio/video transcoding service is removed from the schedulable service queue, and the scheduling result related to the disconnected service is cleared.
In addition, the audio and video transcoding scheduling service module further has an expansion capability, and can be used for adding the audio and video transcoding service module based on the system audio and video forwarding requirement and adding the newly added audio and video transcoding service module into a schedulable service queue. Specifically, if the system needs to increase the audio and video forwarding capacity, the audio and video transcoding scheduling service module directly adds the audio and video transcoding service, and the audio and video transcoding scheduling service module can automatically add the newly added audio and video transcoding service module into a scheduled service queue, so that the operation of the whole system cannot be influenced.
The strategy for selecting the audio and video transcoding service module by the audio and video transcoding scheduling service module is as follows.
The audio and video transcoding scheduling service module records information of all audio and video resources in the network, forwarding service information, a schedulable transcoding service list and a scheduling result list.
The audio and video transcoding scheduling service module can monitor the running condition of the audio and video transcoding service module in the network to which the audio and video transcoding scheduling service module belongs in real time, and when an audio and video transcoding service module is newly added, the audio and video transcoding scheduling service module can add the newly added audio and video transcoding service module into a schedulable transcoding service list for selection when a scheduling request is processed next time. When the audio and video transcoding service module is disconnected, the audio and video transcoding scheduling service module removes the audio and video transcoding service module from the schedulable service list, and deletes a corresponding scheduling result.
And when the audio and video transcoding scheduling service module processes the scheduling request every time, if the scheduling request is an internal network request, selecting an audio and video transcoding service module with the minimum load from the schedulable transcoding service list for transcoding distribution, and if the scheduling request is an external network scheduling request, selecting a forwarding service module for transcoding distribution.
The forwarding service module can be used for simultaneously communicating an internal network and an external network, has all functions of audio and video transcoding service, and mainly has the functions of pushing audio and video stream data of an internal network to an external network and pulling the audio and video stream data of the external network to the internal network.
Referring to fig. 2, a flowchart of audio and video resource transcoding across network scheduling of the application is shown in fig. 2.
And the audio and video transcoding scheduling service module receives a scheduling request comprising an audio and video resource ID and a target audio and video stream parameter and judges whether a transcoding scheduling result exists in a network according to the audio and video resource ID and the target audio and video stream parameter.
And if so, the audio and video transcoding scheduling service module generates an audio and video data stream address according to the scheduling result and the target audio and video stream parameter and returns the audio and video resources to the audio and video data stream address.
And if not, the audio and video transcoding scheduling service module judges whether the audio and video resource IDs belong to the same network.
And if the audio and video transcoding scheduling service modules belong to the same network, the audio and video transcoding scheduling service module selects the audio and video transcoding service module to transcode according to the load of each audio and video transcoding service and records a scheduling result, generates an audio and video data stream address according to the scheduling result and a target audio and video stream parameter and returns audio and video resources to the audio and video data stream address.
And if the audio and video transcoding scheduling service modules do not belong to the same network, the audio and video transcoding scheduling service module forwards the scheduling request to the audio and video transcoding scheduling service module in the network to which the audio and video resources belong.
Further, as shown in fig. 3, the present application further provides a system internal network source return timing diagram, where the audio/video transcoding service module receives a stream pulling request from a stream pulling client, where the stream pulling request includes audio/video resource ID information, and the audio/video transcoding service module determines whether the audio/video resource ID information includes original stream information of a stream audio/video resource to be pulled, if so, executes a stream pulling transcoding task, and if not, sends a source return request for querying the original stream information of the stream audio/video resource to be pulled to an audio/video transcoding scheduling service module in the internal network.
The audio and video transcoding service module pulls the original stream data of the streaming audio and video resources to be pulled according to the original stream information of the streaming audio and video resources to be pulled returned by the audio and video transcoding scheduling service module, performs transcoding distribution on the original stream data of the streaming audio and video resources to be pulled, and pushes the streaming audio and video data to be pulled after transcoding distribution to a streaming client.
A second aspect of the present application provides a preferred embodiment of a method based on a cross-network audio/video transcoding scheduling, where the method is completed based on the system based on the cross-network audio/video transcoding scheduling of the foregoing embodiment, and the method includes the following steps.
Step S100, the audio and video transcoding scheduling service module receives a scheduling request, wherein the scheduling request comprises an audio and video resource ID and a target audio and video stream parameter.
And step S200, the audio and video transcoding scheduling service module judges whether a transcoding scheduling result exists in the network according to the audio and video resource ID and the target audio and video stream parameter.
And step S300, if the scheduling result does not exist, the audio and video transcoding scheduling service module analyzes the audio and video resource ID, acquires the network in the audio and video resource ID and executes the step S500.
In step S400, if the scheduling result exists, step S600 is executed.
Step S500, the audio and video transcoding scheduling service module judges whether the audio and video resource IDs belong to the same network; if yes, selecting a transcoding task to distribute by the audio and video transcoding scheduling service module according to the load condition of each audio and video transcoding service module in the transcoding service list, recording a scheduling result and executing the step S600; it can be understood that, in some preferred persons, if it is determined in step S500 that the audio/video resource IDs do not belong to the same network, the scheduling request is forwarded to the audio/video transcoding scheduling service module in the network to which the audio/video resource ID belongs, an audio/video data stream address is obtained, and scheduling is completed.
And step S600, the audio and video transcoding scheduling service module generates an audio and video data stream address according to the scheduling result and the target audio and video stream parameter in the scheduling request.
And step S700, the audio and video transcoding scheduling service module returns to the audio and video data stream address, and scheduling is finished.
The third aspect of the application provides a preferred embodiment of a cross-network audio and video transcoding scheduling-based method, the method is also completed based on the cross-network audio and video transcoding scheduling-based system of the above embodiment, the method is used for realizing the source return of the cross-network audio and video transcoding scheduling between a first network and a second network, the first network comprises a first audio and video transcoding service module, a first audio and video transcoding scheduling service module and a first forwarding service module, and the second network comprises a second audio and video transcoding service module, a second audio and video transcoding scheduling service module and a second forwarding service module.
The method comprises the following steps.
In step a10, a first forwarding service module in a first network receives a pull request from a pull client.
Step A20, the first forwarding service module obtains the audio and video resource ID according to the pull stream request.
Step a30, the first forwarding service module determines whether the original stream information of the audio/video resource already exists in the first network, and if not, the first forwarding service module sends a request for querying the original stream information of the audio/video resource to the first audio/video transcoding scheduling service module.
Step A40, the first audio/video transcoding scheduling service module analyzes the ID of the audio/video resource and acquires the information of the second network to which the audio/video resource belongs.
Step A50, the first audio/video transcoding scheduling service module sends an extranet transcoding scheduling request to the second audio/video transcoding scheduling service module.
And step A60, the second audio/video transcoding scheduling service module receives the extranet transcoding scheduling request, selects the second forwarding service module as a transcoding server, stores the scheduling result, and returns the scheduling result to the first audio/video transcoding scheduling service module.
And step A70, the first audio/video transcoding scheduling service module generates original stream information of the audio/video resources according to the returned scheduling result and returns the original stream information to the first forwarding service module.
Step A80, the first forwarding service module sends a pull stream request to the second forwarding service module according to the original stream information of the audio/video resource.
Step A90, the second forwarding service module obtains the audio/video resource ID according to the pull stream request.
Step A100, the second forwarding service module judges whether the original stream information of the audio and video resources exists, if so, the second forwarding service module sends a request for inquiring the original stream information of the audio and video resources to the second audio and video transcoding scheduling service module.
Step A110, the second audio/video transcoding scheduling service module returns the original stream information of the audio/video resources to the second forwarding service module.
Step A120, the second forwarding service module pulls an original audio and video data stream based on the original stream information of the audio and video resources.
Step A130, the second forwarding service module performs transcoding distribution on the original audio and video data stream.
Step A140, the second forwarding service module pushes the transcoded and distributed audio/video data to the first forwarding service module.
Step A150, the first forwarding service module receives the audio and video data and performs transcoding distribution.
Step A160, the first forwarding service module pushes the audio and video data after transcoding and distribution to the stream pulling client.
The technical solutions in the embodiments of the present application at least have the following technical effects and advantages.
The invention can realize the pushing of audio and video stream data in one network to another network based on the cross-network audio and video transcoding scheduling system, meets the application scene requirement of cross-network audio and video stream data distribution, and can transcode and distribute audio and video files as well as audio and video stream data.
The audio and video transcoding scheduling service module can record the information of all audio and video resources in the network to which the scheduling transcoding service selection strategy belongs, forward service information, a scheduling transcoding service list and a scheduling result list, can monitor the running condition of the transcoding service in the network to which the scheduling transcoding service module belongs in real time, has disaster tolerance capability and expansion capability, flexibly copes with system emergency, and ensures the normal running of the system.
The method based on cross-network audio and video transcoding scheduling provides a process of cross-network scheduling and backtracking of audio and video resources, and the method can accelerate the transcoding process and improve the transcoding efficiency.
A fourth embodiment of the present invention provides an apparatus, including: at least one processor; and a memory communicatively coupled to at least one of the processors; wherein the memory stores instructions executable by the processor for execution by the processor to implement the above-described cross-network audio video transcoding scheduling-based method.
In a fifth embodiment of the present invention, a computer-readable storage medium is provided, where the computer-readable storage medium stores computer instructions for being executed by the computer to implement the above method based on cross-network audio/video transcoding scheduling.
It is clear to those skilled in the art that, for convenience and brevity, the specific working processes and descriptions of the storage device and the processing device described above may refer to the corresponding processes in the example of the signing method, and are not described herein again.
Referring now to FIG. 5, there is illustrated a block diagram of a computer system suitable for use as a server in implementing embodiments of the method, system, and apparatus of the present application. The server shown in fig. 5 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
As shown in fig. 5, the computer system includes a Central Processing Unit (CPU) 601, which can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 602 or a program loaded from a storage section 608 into a Random Access Memory (RAM) 603. In the RAM603, various programs and data necessary for system operation are also stored. The CPU601, ROM 602, and RAM603 are connected to each other via a bus 604. An Input/Output (I/O) interface 605 is also connected to bus 604.
The following components are connected to the I/O interface 605: an input portion 606 including a keyboard, a mouse, and the like; an output section 607 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, a speaker, and the like; a storage section 608 including a hard disk and the like; and a communication section 609 including a Network interface card such as a LAN (Local Area Network) card, a modem, or the like. The communication section 609 performs communication processing via a network such as the internet. The driver 610 is also connected to the I/O interface 605 as needed. A removable medium 611 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 610 as necessary, so that a computer program read out therefrom is mounted in the storage section 608 as necessary.
In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 609, and/or installed from the removable medium 611. More specific examples of a computer-readable storage medium may include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), a compact disc read-only memory (CD-ROM), Optical storage devices, magnetic storage devices, or any suitable combination of the foregoing. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing or implying a particular order or sequence.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A system based on cross-network audio and video transcoding scheduling is characterized by comprising: the system comprises an audio and video transcoding service module, an audio and video transcoding scheduling service module and a forwarding service module; the audio and video transcoding service module is configured to transcode and distribute audio and video code stream data with different formats in a network to specified audio and video format data, when the audio and video transcoding service module receives a stream pulling request, an audio and video resource ID is analyzed according to the stream pulling request, whether original stream information of audio and video resources to be pulled exists is judged, if yes, a stream pulling transcoding task is executed, and if not, a source returning request is sent to an audio and video transcoding scheduling service module in the internal network to obtain the original stream information of the resources; the audio and video transcoding scheduling service module is configured to manage the audio and video transcoding service module and the distribution of transcoding tasks, and the audio and video transcoding scheduling service module can be simultaneously communicated with an internal network and an external network and pushes network information and an audio and video resource list to the audio and video transcoding scheduling service module in the external network; the audio and video transcoding scheduling service module can receive a source returning request of the audio and video transcoding service module in an internal network, and returns original stream information of audio and video resources for the audio and video transcoding service module to pull stream and transcode; the forwarding service module is configured to be capable of simultaneously communicating an internal network and an external network on the basis of the function of the audio and video transcoding service module, and is used for pushing the audio and video stream data of the internal network to the external network and pulling the audio and video stream data of the external network to the internal network.
2. The system based on the cross-network audio and video transcoding scheduling of claim 1, wherein the audio and video transcoding scheduling service module monitors the running state of the audio and video transcoding scheduling service in real time based on the scheduling result of each audio and video resource, adjusts a schedulable service queue according to the running state of the audio and video transcoding scheduling service, removes the dropped audio and video transcoding service module from the schedulable service queue, and clears the scheduling result related to the dropped audio and video transcoding service module.
3. The system based on cross-network audio and video transcoding scheduling of claim 1, wherein the audio and video transcoding scheduling service module can add an audio and video transcoding service module based on the system audio and video forwarding requirement, and add the newly added audio and video transcoding service module into a schedulable service queue.
4. The system based on cross-network audio and video transcoding scheduling of claim 1, wherein the audio and video transcoding scheduling service module has a unique code, and the audio and video transcoding scheduling service module can push own network information, the unique code and an audio and video resource list to the audio and video transcoding scheduling service module in an external network.
5. The system based on the cross-network audio and video transcoding scheduling of claim 1, wherein the audio and video transcoding scheduling service module receives a scheduling request comprising an audio and video resource ID and a target audio and video stream parameter, and judges whether a transcoding scheduling result exists in a network of the scheduling service module according to the audio and video resource ID and the target audio and video stream parameter; if so, the audio and video transcoding scheduling service module generates an audio and video data stream address according to the scheduling result and the target audio and video stream parameter and returns the audio and video resources to the audio and video data stream address; if not, the audio and video transcoding scheduling service module judges whether the audio and video resource IDs belong to the same network; if the audio and video transcoding scheduling service modules belong to the same network, the audio and video transcoding scheduling service module selects the audio and video transcoding service module to transcode according to the load of each audio and video transcoding service and records a scheduling result, generates an audio and video data stream address according to the scheduling result and a target audio and video stream parameter and returns audio and video resources to the audio and video data stream address; and if the audio and video transcoding scheduling service modules do not belong to the same network, the audio and video transcoding scheduling service module forwards the scheduling request to the audio and video transcoding scheduling service module in the network to which the audio and video resources belong.
6. The system based on the cross-network audio and video transcoding scheduling of claim 1, wherein the audio and video transcoding service module receives a stream pulling request of a stream pulling client, the stream pulling request includes audio and video resource ID information, the audio and video transcoding service module judges whether the audio and video resource ID information has original stream information of a stream audio and video resource to be pulled, if yes, a stream pulling transcoding task is executed, and if not, a source returning request for inquiring the original stream information of the stream audio and video resource to be pulled is sent to the audio and video transcoding scheduling service module in the internal network; the audio and video transcoding service module pulls original stream data of the streaming audio and video resources to be pulled according to original stream information of the streaming audio and video resources to be pulled returned by the audio and video transcoding scheduling service module, performs transcoding distribution on the original stream data of the streaming audio and video resources to be pulled, and pushes the streaming audio and video data to be pulled after transcoding distribution to a streaming client.
7. A method based on cross-network audio/video transcoding scheduling, wherein the method is implemented based on the system based on cross-network audio/video transcoding scheduling of any of claims 1 to 6, the method comprising the following steps: step S100, the audio and video transcoding scheduling service module receives a scheduling request, wherein the scheduling request comprises an audio and video resource ID and a target audio and video stream parameter; step S200, the audio and video transcoding scheduling service module judges whether a transcoding scheduling result exists in the network according to the audio and video resource ID and the target audio and video stream parameter; step S300, if the scheduling result does not exist, the audio and video transcoding scheduling service module analyzes the audio and video resource ID, acquires the network in the audio and video resource ID and executes step S500; step S400, if the scheduling result exists, executing step S600; step S500, the audio and video transcoding scheduling service module judges whether the audio and video resource IDs belong to the same network; if yes, selecting a transcoding task to distribute by the audio and video transcoding scheduling service module according to the load condition of each audio and video transcoding service module in the transcoding service list, recording a scheduling result and executing the step S600; step S600, the audio and video transcoding scheduling service module generates an audio and video data stream address according to a scheduling result and a target audio and video stream parameter in the scheduling request; and step S700, the audio and video transcoding scheduling service module returns to the audio and video data stream address, and scheduling is finished.
8. A method based on cross-network audio and video transcoding scheduling is characterized in that the method is completed based on the system based on cross-network audio and video transcoding scheduling of any one of claims 1 to 6, the method is used for realizing the source return of the cross-network audio and video transcoding scheduling between a first network and a second network, the first network comprises a first audio and video transcoding service module, a first audio and video transcoding scheduling service module and a first forwarding service module, and the second network comprises a second audio and video transcoding service module, a second audio and video transcoding scheduling service module and a second forwarding service module; the method comprises the following steps: step A10, a first forwarding service module in a first network receives a pull request of a pull client; step A20, the first forwarding service module obtains an audio and video resource ID according to the pull stream request; step A30, the first forwarding service module judges whether the original stream information of the audio and video resources exists in the first network, if not, the first forwarding service module sends a request for inquiring the original stream information of the audio and video resources to the first audio and video transcoding scheduling service module; a40, the first audio/video transcoding scheduling service module analyzes the ID of the audio/video resource and acquires the information of a second network to which the audio/video resource belongs; a50, the first audio/video transcoding scheduling service module sends an external network transcoding scheduling request to the second audio/video transcoding scheduling service module; step A60, the second audio/video transcoding scheduling service module receives the outer network transcoding scheduling request, selects the second forwarding service module as the transcoding server, stores the scheduling result, and returns the scheduling result to the first audio/video transcoding scheduling service module; step A70, the first audio/video transcoding scheduling service module generates original stream information of audio/video resources according to the returned scheduling result and returns the original stream information to the first forwarding service module; step A80, the first forwarding service module sends a stream pulling request to the second forwarding service module according to the original stream information of the audio/video resource; step A90, the second forwarding service module obtains an audio and video resource ID according to the pull stream request; step A100, a second forwarding service module judges whether original stream information of audio and video resources exists or not, and if the original stream information of the audio and video resources exists, the second forwarding service module sends a request for inquiring the original stream information of the audio and video resources to a second audio and video transcoding scheduling service module; step A110, a second audio/video transcoding scheduling service module returns original stream information of audio/video resources to a second forwarding service module; step A120, the second forwarding service module pulls an original audio and video data stream based on original stream information of the audio and video resources; step A130, a second forwarding service module performs transcoding distribution on an original audio and video data stream; step A140, the second forwarding service module pushes the transcoded and distributed audio and video data to the first forwarding service module; a150, a first forwarding service module receives audio and video data and performs transcoding distribution; step A160, the first forwarding service module pushes the audio and video data after transcoding and distribution to the stream pulling client.
9. An electronic device, comprising: at least one processor; and a memory communicatively coupled to at least one of the processors; wherein the memory stores instructions executable by the processor for implementing the cross-network audio video transcoding based scheduling method of any of claims 7-8.
10. A computer-readable storage medium storing computer instructions for execution by the computer to implement the cross-network audio video transcoding based scheduling method of any of claims 7-8.
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