CN104168446B - Audio-video signal digital-to-analogue switching system based on scheduling message and hard decoder - Google Patents
Audio-video signal digital-to-analogue switching system based on scheduling message and hard decoder Download PDFInfo
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- CN104168446B CN104168446B CN201410304015.7A CN201410304015A CN104168446B CN 104168446 B CN104168446 B CN 104168446B CN 201410304015 A CN201410304015 A CN 201410304015A CN 104168446 B CN104168446 B CN 104168446B
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Abstract
The invention discloses the audio-video signal digital-to-analogue switching system based on scheduling message and hard decoder, including client, intranet server, isolating device and external network server that communication module is in communication with each other is respectively adopted, mobile video equipment is connected with the external network server, the client is provided with audio frequency and video module, the isolating device is provided with audio frequency and video passage, and the external network server is provided with thread pool module, memory pool module and decoding card；The external network server uses the request that the scheduling message mechanism processing client realized by scheduling message strategy combination thread pool, memory pool technique is sent, the audio frequency and video passage that the audio-video signal input for being exported mobile video equipment in hard decoder mode by decoding card is specified, reads and shows for client.The present invention effectively improves the con current control of audio/video flow by scheduling message mechanism, and greatly improves the fluency of audio/video flow；Hard decoder audio/video flow is not take up CPU timeslice, improves efficiency.
Description
Technical field
The utility model is related to monitoring technology field, and in particular to the audio-video signal number based on scheduling message and hard decoder
Mould switching method.
Background technology
In the last few years, video monitoring became more and more important in the effect of the safety-security area of mobile distribution repairing remote-control system,
Due to mobile video equipment（Vehicle/single-soldier）Audio/video flow is transmitted by 3G signals, to meet state's net security regulations, then how
Solve outer net audio/video flow and safely and efficiently access power system internal network, the problem of be in the urgent need to address.
The content of the invention
The technical problem to be solved in the present invention is to provide the switching of the audio-video signal digital-to-analogue based on scheduling message and hard decoder
Method, supports system platform based on distribution repairing remote-control is saved, makes full use of existing power system internal network and shifting
Dynamic video equipment resource, realizes the safe and efficient access power system internal network of audio/video flow of mobile video equipment output.
The present invention is achieved through the following technical solutions：
Audio-video signal digital-to-analogue switching system based on scheduling message and hard decoder, including that communication module is respectively adopted is mutual
Mobile video is connected with client, intranet server, isolating device and the external network server of communication, the external network server to set
Standby, the client is provided with audio frequency and video module, and the isolating device is provided with audio frequency and video passage, and the external network server is provided with thread
Pond module, memory pool module and decoding card；The external network server is used by scheduling message strategy combination thread pool, memory pool skill
The request that the scheduling message mechanism processing client that art is realized is sent, when receiving the request that client is sent, scheduling message
Mechanism takes an idle thread out of thread pool, the request report for taking a free memory block storage client to send out of memory pool
The context data of text simultaneously generates a task, and the message queue that line asynchronous is delivered to idle thread is entered using the task as message
In, idle thread is taken after message from message queue, parses message context data, performs task, is blocked by decoding to solve firmly
The audio-video signal that code mode exports mobile video equipment carries out digital-to-analogue switching and obtains audio/video flow, refers to as input source input
Fixed audio frequency and video passage, reads and shows for client.
The external network server is additionally provided with GPS module, using callback mechanism, by mobile video terminal device active reporting
GPS location latitude and longitude information and translational speed are converted into the recognizable form of client, pass through the communication module of external network server
Timing is sent to client, is shown for client and playback history track.
The external network server is additionally provided with heartbeat module, in task implementation procedure, and client timing sends heartbeat message
To external network server, when external network server, which detects client, does not send heartbeat message, cancel being carrying out for task, and release
Put thread, internal memory and the audio frequency and video passage of task occupancy.
The external network server is additionally provided with real-time audio and video throat floater and reconnects module, when mobile video terminal is in high-speed mobile
During when audio/video flow disconnects caused by network signal is unstable, real-time audio and video throat floater reconnects module and connected again automatically
Connect, to recover audio/video flow.
The beneficial effects of the present invention are：
First, the con current control of audio/video flow is effectively improved by scheduling message mechanism, and greatly improves the stream of audio/video flow
Smooth property；
2nd, hard decoder audio/video flow can be not take up CPU timeslice, CPU is absorbed in control and the biography of audio/video flow
It is defeated, improve efficiency；
3rd, digital-to-analogue audio/video flow signal is efficiently changed and defeated as input source using scheduling message strategy and hard decoder mode
The client gone out onto dedicated tunnel for request is played out, and not only has great raising in transmission performance, and being capable of root
Dedicated tunnel number is exported according to the request situation of current audio/video flow, so as to efficiently solve because of a large amount of same front end mobile videos
Network blockage phenomenon caused by the request of equipment audio/video flow, the network environment good to network system internal invention is improved
Routine work efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Embodiment
Audio-video signal digital-to-analogue switching system based on scheduling message and hard decoder as shown in Figure 1, including be respectively adopted
Connected in client, intranet server, isolating device and external network server that communication module is in communication with each other, the external network server
There is mobile video equipment, the client is provided with audio frequency and video module, and the isolating device is provided with audio frequency and video passage, the outer net clothes
Device be engaged in provided with thread pool module, memory pool module and decoding card；The external network server is used by scheduling message strategy joint line
The request that sends of scheduling message mechanism processing client that Cheng Chi, memory pool technique are realized, please when receive that client sends
When asking, scheduling message mechanism takes an idle thread out of thread pool, and a free memory block storage client is taken out of memory pool
Hold the context data of the request message sent and generate a task, the task is entered line asynchronous as message and delivered
（PostThreadMessage）Into the message queue of idle thread, idle thread passes through（GetMessage）From message queue
In take after message, parse message context data, perform task, by decode card it is in hard decoder mode that mobile video equipment is defeated
The audio-video signal gone out carries out digital-to-analogue switching and obtains audio/video flow, the audio frequency and video passage specified is inputted as input source, for client
Read and show in end.
The external network server is additionally provided with GPS module, using callback mechanism, by mobile video terminal device active reporting
GPS location latitude and longitude information and translational speed are converted into the recognizable form of client, pass through the communication module of external network server
Timing is sent to client, is shown for client and playback history track.
The external network server is additionally provided with heartbeat module, in task implementation procedure, and client timing sends heartbeat message
To external network server, when external network server, which detects client, does not send heartbeat message, cancel being carrying out for task, and release
Put thread, internal memory and the audio frequency and video passage of task occupancy.
The external network server is additionally provided with real-time audio and video throat floater and reconnects module, when mobile video terminal is in high-speed mobile
During when audio/video flow disconnects caused by network signal is unstable, real-time audio and video throat floater reconnects module and connected again automatically
Connect, to recover audio/video flow.
Claims (4)
1. the audio-video signal digital-to-analogue switching system based on scheduling message and hard decoder, it is characterised in that：It is logical including being respectively adopted
It is connected with client, intranet server, isolating device and external network server that letter module is in communication with each other, the external network server
Mobile video equipment, the client is provided with audio frequency and video module, and the isolating device is provided with audio frequency and video passage, the outer net service
Device is provided with thread pool module, memory pool module and decoding card；The external network server is used by scheduling message strategy combination thread
The request that sends of scheduling message mechanism processing client that pond, memory pool technique are realized, when receiving the request that client is sent
When, scheduling message mechanism takes an idle thread out of thread pool, and a free memory block storage client is taken out of memory pool
The context data of the request message sent simultaneously generates a task, and the task is entered line asynchronous as message and is delivered to idle line
In the message queue of journey, idle thread is taken after message from message queue, parses message context data, is performed task, is passed through
The audio-video signal that decoding card is exported mobile video equipment in hard decoder mode carries out digital-to-analogue switching and obtains audio/video flow, as
The audio frequency and video passage that input source input is specified, reads and shows for client.
2. the audio-video signal digital-to-analogue switching system as claimed in claim 1 based on scheduling message and hard decoder, its feature exists
In：The external network server is additionally provided with GPS module, and using callback mechanism, the GPS of mobile video terminal device active reporting is determined
Position latitude and longitude information and translational speed are converted into the recognizable form of client, are sent out by the communication module timing of external network server
Client is delivered to, is shown for client and playback history track.
3. the audio-video signal digital-to-analogue switching system as claimed in claim 1 based on scheduling message and hard decoder, its feature exists
In：The external network server is additionally provided with heartbeat module, in task implementation procedure, and client timing sends heartbeat message to outer net
Server, when external network server, which detects client, does not send heartbeat message, cancels being carrying out for task, and discharge this
Thread, internal memory and the audio frequency and video passage for occupancy of being engaged in.
4. the audio-video signal digital-to-analogue switching system as claimed in claim 1 based on scheduling message and hard decoder, its feature exists
In：The external network server is additionally provided with real-time audio and video throat floater and reconnects module, when mobile video terminal is in high speed movement
It is middle that real-time audio and video throat floater reconnects module and reconnected automatically when audio/video flow disconnects caused by network signal is unstable, with
Recover audio/video flow.
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| CN104168446B true CN104168446B (en) | 2017-09-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105740326B (en) * | 2016-01-21 | 2021-01-15 | 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 |
| CN109660829B (en) * | 2018-12-20 | 2021-08-17 | 北京东土科技股份有限公司 | Method and system for transmitting media between high-density and low-density networks |
| CN109756497B (en) * | 2018-12-29 | 2022-03-15 | 北京旷视科技有限公司 | Method and system for transmitting call message, forwarding server and readable storage medium |
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| EP2577483A2 (en) * | 2010-05-28 | 2013-04-10 | Microsoft Corporation | Cloud-based personal trait profile data |
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| CN100373867C (en) * | 2005-01-14 | 2008-03-05 | 北邮英科（北京）信息技术研究所有限公司 | Massive parallel processing apparatus and method for network isolation and information exchange module |
| CN102413176B (en) * | 2011-11-11 | 2014-01-01 | 华为技术有限公司 | Connection transfer method and equipment |
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| CN101083669A (en) * | 2007-07-10 | 2007-12-05 | 梁雁文 | Computer network isolated system and its control and switch method |
| EP2577483A2 (en) * | 2010-05-28 | 2013-04-10 | Microsoft Corporation | Cloud-based personal trait profile data |
| CN102137165A (en) * | 2011-04-22 | 2011-07-27 | 南京邮电大学 | Method for realizing ARES indexing system based on peer-to-peer (P2P) network |
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