CN104168446A - Audio-video signal digital-analog switching system based on message scheduling and hard decoding - Google Patents
Audio-video signal digital-analog switching system based on message scheduling and hard decoding Download PDFInfo
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- CN104168446A CN104168446A CN201410304015.7A CN201410304015A CN104168446A CN 104168446 A CN104168446 A CN 104168446A CN 201410304015 A CN201410304015 A CN 201410304015A CN 104168446 A CN104168446 A CN 104168446A
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Abstract
The invention discloses an audio-video signal digital-analog switching system based on message scheduling and hard decoding, comprising a client communicating through a communication module, an intranet server, an isolation device and an outside network server; the outside network server is connected to a mobile video device; the client is provided with an audio-video module; the isolation device is provided with an audio-video channel; the outside network server is provided with a thread pool module, an internal memory module and a decoding card; the outside network server adopts the information scheduling mechanism to process the request transmitted by the client, wherein the information scheduling mechanism is realized through combining information scheduling strategy with the thread pool technology and the internal memory pool technology; and the audio-video signals outputted by the mobile video device are inputted into an appointed audio-video channel through a decoding card in a decoding manner for the client to read and display. The invention can effectively improve concurrency control of the audio-video flow through the information dispatching mechanism and can greatly improve the smoothness of the audio-video flows. The hard-decoding audio-video flow does not occupy the time sheet of the CPU, which improves the efficiency.
Description
Technical field
The present invention relates to monitoring technique field, be specifically related to the audio-video signal digital-to-analogue changing method based on scheduling message and hard decoder.
Background technology
In the last few years, video monitoring becomes more and more important in the effect of the safety-security area of mobile distribution repairing remote-control system, because mobile video equipment (vehicle/single-soldier) is by 3G signal transmission tone video flowing, for meeting state's net security regulations, so how solving outer net audio/video flow and access safely and efficiently electric power system internal network, is problem in the urgent need to address.
Summary of the invention
The technical problem to be solved in the present invention is to provide the audio-video signal digital-to-analogue changing method based on scheduling message and hard decoder, based on economizing distribution repairing remote-control back-up system platform, make full use of existing electric power system internal network and mobile video device resource, realize the safe and efficient access electric power system of the audio/video flow internal network of mobile video equipment output.
The present invention is achieved through the following technical solutions:
Audio-video signal digital-to-analogue switched system based on scheduling message and hard decoder, comprise the client that adopts respectively communication module to intercom mutually, interior network server, spacer assembly and outer network server, on described outer network server, be connected with mobile video equipment, described client is provided with audio frequency and video module, described spacer assembly is provided with audio frequency and video passage, and described outer network server is provided with thread pool module, memory pool module and decoding card, described outer network server adopts by scheduling message strategy in conjunction with thread pool, the scheduling message mechanism that memory pool technique is realized is processed the request that client is sent, in the time receiving the request that client sends, scheduling message mechanism is got an idle thread in thread pool, from getting the context data of the request message that a free memory block storage client sends in memory pool and generating a task, carry out using this task as message in the asynchronous message queue that is delivered to idle thread, idle thread is cancelled after breath from message queue, resolve message context data, execute the task, block and in hard decoder mode, the audio-video signal of mobile video equipment output is carried out to digital-to-analogue and switch and obtain audio/video flow by decoding, the audio frequency and video passage that input is specified as input source, read and show for client.
Described outer network server is also provided with GPS module, adopt callback mechanism, convert GPS location latitude and longitude information and the translational speed of mobile video terminal equipment active reporting to client discernible form, communication module timed sending by outer network server, to client, shows and playback history track for client.
Described outer network server is also provided with heartbeat module, in task implementation, client timed sending heartbeat message is to outer network server, in the time that outer network server detects that client does not send heartbeat message, cancel carrying out of task, and discharge thread, internal memory and the audio frequency and video passage that this task takies.
Described outer network server is also provided with real-time audio and video stream and extremely reconnects module, when mobile video terminal causes audio/video flow to disconnect in high-speed mobile process because network signal is unstable, real-time audio and video stream extremely reconnects module and automatically reconnects, to recover audio/video flow.
Beneficial effect of the present invention is:
One, effectively improve the concurrent control of audio/video flow by scheduling message mechanism, and greatly improve the fluency of audio/video flow;
Two, hard decoder audio/video flow can not take the timeslice of CPU, makes CPU be absorbed in control and the transmission of audio/video flow, raises the efficiency;
Three, adopt scheduling message strategy and hard decoder mode efficiently change digital-to-analogue audio/video flow signal and output in dedicated tunnel and play for the client of request as input source, not only in transmission performance, there is great raising, and can be according to the request situation output dedicated tunnel number of current audio/video flow, thereby effectively solve the network blockage phenomenon causing because of the request of a large amount of same front end mobile video equipment audio/video flows, give network system inner good network environment, the raising routine work efficiency created.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The audio-video signal digital-to-analogue switched system based on scheduling message and hard decoder as shown in Figure 1, comprise the client that adopts respectively communication module to intercom mutually, interior network server, spacer assembly and outer network server, on described outer network server, be connected with mobile video equipment, described client is provided with audio frequency and video module, described spacer assembly is provided with audio frequency and video passage, and described outer network server is provided with thread pool module, memory pool module and decoding card, described outer network server adopts by scheduling message strategy in conjunction with thread pool, the scheduling message mechanism that memory pool technique is realized is processed the request that client is sent, in the time receiving the request that client sends, scheduling message mechanism is got an idle thread in thread pool, from getting the context data of the request message that a free memory block storage client sends in memory pool and generating a task, carry out asynchronous delivery (PostThreadMessage) using this task as message in the message queue of idle thread, idle thread is cancelled after breath by (GetMessage) from message queue, resolve message context data, execute the task, block and in hard decoder mode, the audio-video signal of mobile video equipment output is carried out to digital-to-analogue and switch and obtain audio/video flow by decoding, the audio frequency and video passage that input is specified as input source, read and show for client.
Described outer network server is also provided with GPS module, adopt callback mechanism, convert GPS location latitude and longitude information and the translational speed of mobile video terminal equipment active reporting to client discernible form, communication module timed sending by outer network server, to client, shows and playback history track for client.
Described outer network server is also provided with heartbeat module, in task implementation, client timed sending heartbeat message is to outer network server, in the time that outer network server detects that client does not send heartbeat message, cancel carrying out of task, and discharge thread, internal memory and the audio frequency and video passage that this task takies.
Described outer network server is also provided with real-time audio and video stream and extremely reconnects module, when mobile video terminal causes audio/video flow to disconnect in high-speed mobile process because network signal is unstable, real-time audio and video stream extremely reconnects module and automatically reconnects, to recover audio/video flow.
Claims (4)
1. the audio-video signal digital-to-analogue switched system based on scheduling message and hard decoder, it is characterized in that: comprise the client that adopts respectively communication module to intercom mutually, interior network server, spacer assembly and outer network server, on described outer network server, be connected with mobile video equipment, described client is provided with audio frequency and video module, described spacer assembly is provided with audio frequency and video passage, and described outer network server is provided with thread pool module, memory pool module and decoding card, described outer network server adopts by scheduling message strategy in conjunction with thread pool, the scheduling message mechanism that memory pool technique is realized is processed the request that client is sent, in the time receiving the request that client sends, scheduling message mechanism is got an idle thread in thread pool, from getting the context data of the request message that a free memory block storage client sends in memory pool and generating a task, carry out using this task as message in the asynchronous message queue that is delivered to idle thread, idle thread is cancelled after breath from message queue, resolve message context data, execute the task, block and in hard decoder mode, the audio-video signal of mobile video equipment output is carried out to digital-to-analogue and switch and obtain audio/video flow by decoding, the audio frequency and video passage that input is specified as input source, read and show for client.
2. the audio-video signal digital-to-analogue changing method based on scheduling message and hard decoder as claimed in claim 1, it is characterized in that: described outer network server is also provided with GPS module, adopt callback mechanism, convert GPS location latitude and longitude information and the translational speed of mobile video terminal equipment active reporting to client discernible form, communication module timed sending by outer network server, to client, shows and playback history track for client.
3. the audio-video signal digital-to-analogue changing method based on scheduling message and hard decoder as claimed in claim 1, it is characterized in that: described outer network server is also provided with heartbeat module, in task implementation, client timed sending heartbeat message is to outer network server, in the time that outer network server detects that client does not send heartbeat message, cancel carrying out of task, and discharge thread, internal memory and the audio frequency and video passage that this task takies.
4. the audio-video signal digital-to-analogue changing method based on scheduling message and hard decoder as claimed in claim 1, it is characterized in that: described outer network server is also provided with real-time audio and video stream and extremely reconnects module, when mobile video terminal causes audio/video flow to disconnect in high-speed mobile process because network signal is unstable, real-time audio and video stream extremely reconnects module and automatically reconnects, to recover audio/video flow.
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| CN201410304015.7A CN104168446B (en) | 2014-06-30 | 2014-06-30 | Audio-video signal digital-to-analogue switching system based on scheduling message and hard decoder |
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| CN201410304015.7A CN104168446B (en) | 2014-06-30 | 2014-06-30 | Audio-video signal digital-to-analogue switching system based on scheduling message and hard decoder |
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| CN105740326A (en) * | 2016-01-21 | 2016-07-06 | 腾讯科技（深圳）有限公司 | Thread state monitoring method and device for browser |
| CN108810557A (en) * | 2017-07-10 | 2018-11-13 | 北京视联动力国际信息技术有限公司 | A kind of method for processing video frequency, device, electronic equipment and storage medium |
| CN109660829A (en) * | 2018-12-20 | 2019-04-19 | 北京东土科技股份有限公司 | Media transmission method and system between a kind of close network of height |
| CN109756497A (en) * | 2018-12-29 | 2019-05-14 | 北京旷视科技有限公司 | Method and system, forwarding server and the readable storage medium storing program for executing of message are called in transmission |
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| CN104168446B (en) | 2017-09-29 |
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