CN102790863B - Video rebroadcast soft handoff system and method - Google Patents
Video rebroadcast soft handoff system and method Download PDFInfo
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- CN102790863B CN102790863B CN201210289174.5A CN201210289174A CN102790863B CN 102790863 B CN102790863 B CN 102790863B CN 201210289174 A CN201210289174 A CN 201210289174A CN 102790863 B CN102790863 B CN 102790863B
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Abstract
The invention discloses a video rebroadcast soft handoff system and a method. The system comprises a soft handoff control platform used for switching video signals with a streaming media format; and the soft handoff control platform comprises at least one streaming media input interface and at least one streaming media output interface. According to the soft handoff control platform, the handoff control on multichannel video signals is conveniently carried out, and the addition of captions and special technique effects can be realized only with the help of software programming. The soft handoff system has the advantages of simple configuration, low cost and strong universality.
Description
Technical field
The present invention relates to video switch technical field, particularly a kind of video rebroadcast soft handoff system and method.
Background technology
The Main Function of cut bank is: controlled by the vision signal inputted multichannel, selects a wherein road vision signal to export.
As shown in Figure 1, for the structural representation of video transmission switched system in prior art, because cut bank can only receive conventional video signals according to existing protocol, wherein, conventional video signals comprises: the vision signal of analog signal format and the vision signal of digital SDI form; So, for the raw video signal that camera acquisition arrives, need, successively through special encoder, transmitter module, receiver module and decoder, finally to arrive cut bank; And, for the vision signal that camera acquisition arrives, this kind of vision signal must could be recorded by the video tape recorder be connected with cut bank.Further, cut bank needs the film titler of configure dedicated, can add corresponding captions in the vision signal received.Further, cut bank also must configure complicated video matrix, thus realizes from multi-channel video signal, export a wherein road vision signal.
Can be found out, in existing video transmission switched system, comprise a large amount of hardware to have that configuration is complicated, cost is high, the defect of poor universality by said structure.
Summary of the invention
For the defect that prior art exists, the invention provides a kind of video rebroadcast soft handoff system and method, by soft handover parametric controller, very convenient switching controls is carried out to multi-channel video signal, and add captions and special technique effect and only need can realize by software programming, therefore, have that configuration is simple, cost is low, the advantage of highly versatile.
The technical solution used in the present invention is as follows:
The invention provides a kind of video rebroadcast soft handoff system, comprising: the vision signal for streaming media form carries out the soft handover parametric controller switched; Described soft handover parametric controller comprises: at least one Streaming Media input interface and at least one Streaming Media output interface.
Preferably, described soft handover parametric controller is computer; And/or described soft handover parametric controller is also connected with memory module.
Preferably, described Streaming Media input interface comprises first kind Streaming Media input interface and Equations of The Second Kind Streaming Media input interface; Described first kind Streaming Media input interface is successively by the first wireless network and wireless adapter and the first camera communication, and described Equations of The Second Kind Streaming Media input interface passes through the first cable network and wired adapter and the second camera communication successively.
Preferably, described first wireless network is wifi network and/or GPRS network and/or WCDMA network; Described first cable network is Ethernet.
Preferably, described Streaming Media output interface comprises first kind Streaming Media output interface and Equations of The Second Kind Streaming Media output interface; Described first kind Streaming Media output interface is by the second cable network and/or second wireless network and terminal equipment in communication, and described Equations of The Second Kind Streaming Media output interface is connected with transition card input interface, and described transition card output interface is connected with video transmission system.
Preferably, described second wireless network is wifi network and/or GPRS network and/or WCDMA network; Described second cable network is Ethernet.
The invention provides a kind of video transmission soft handover method applying above-mentioned video rebroadcast soft handoff system, comprise the following steps:
S1, described soft handover parametric controller receives the vision signal of at least one road stream media format;
S2, the vision signal of described soft handover parametric controller to the described stream media format received is screened, and determines the vision signal of stream media format described in the road that needs export;
S3, described soft handover parametric controller exports the vision signal of the described stream media format that S2 determines.
Preferably, S1 is specially:
Described first video camera sends raw video signal, obtains the vision signal of described stream media format, and the vision signal of this stream media format is sent to described soft handover parametric controller by cable network and/or wireless network after described raw video signal coding;
Described soft handover parametric controller receives the vision signal of described stream media format.
Preferably, described S2 is specially:
Described soft handover parametric controller judges that whether the resolution of the vision signal of stream media format described in each road of receiving is identical, if judged result is no, be first then identical resolution by the conversion of resolution of the vision signal of stream media format described in each road, and then determine the vision signal needing the stream media format exported; And/or
Described soft handover parametric controller judges that whether the resolution of the vision signal of stream media format described in each road of receiving is identical, if judged result is yes, then directly the vision signal of stream media format described in each road to be exported by initial resolution; And/or
Described soft handover parametric controller generates handoff list, and described in described handoff list record preset time period Nei Duige road, the vision signal of stream media format carries out the transfer sequence switched;
When again receiving the vision signal of stream media format described in each road, by the described transfer sequence of described handoff list record, the vision signal of stream media format described in each road is switched; And/or
Described soft handover parametric controller arranges sound identification module, when described sound identification module recognizes the voice identical with the received pronunciation characteristic stored in received pronunciation storehouse, determine that the vision signal of the stream media format at described voice place is the vision signal needing the stream media format exported; And/or
Described soft handover parametric controller arranges face recognition module, when described face recognition module recognizes face customizing messages, determines that the vision signal of the stream media format at described face customizing messages place is the vision signal needing the stream media format exported; And/or
Described soft handover parametric controller arranges motion identification module, when described motion identification module recognizes special exercise information, determines that the vision signal of the stream media format at described special exercise information place is the vision signal needing the stream media format exported; And/or
When described soft handover parametric controller receives the switching signal that front-end camera sends, described soft handover parametric controller determines that the vision signal of the stream media format that described front-end camera exports is the vision signal needing the stream media format exported automatically; And/or
Described soft handover parametric controller generates XML file; Described XML file is for recording the handover information of described soft handover parametric controller in preset time period and the trick-play information applied to the vision signal of the stream media format exported;
Preferably, after S3, also comprise:
S4, described soft handover parametric controller exports the vision signal of the described stream media format that S2 determines to transition card;
The vision signal of this stream media format is converted to the vision signal of analog signal format and/or digital sdi signal form by described transition card, and the vision signal of this analog signal format and/or digital sdi signal form is sent to conventional video Play System; And/or
After S1, before S3, also comprise:
The vision signal of the described stream media format that the storage of described soft handover parametric controller receives;
After S1, before S3, also comprise:
Described soft handover parametric controller is the captions of the vision signal configuration correspondence of the described stream media format received.
Beneficial effect of the present invention is as follows:
Video rebroadcast soft handoff system provided by the invention and method, have the following advantages: by soft handover parametric controller, very conveniently carries out switching controls to multi-channel video signal, and add captions and special technique effect only needs can realize by software programming; Whole system is easy to maintenance upgrade; Therefore, have multiple functional, configuration is simple, cost is low and the advantage of highly versatile.
Accompanying drawing explanation
Fig. 1 is the structural representation of video transmission switched system in prior art;
Fig. 2 is the structural representation of video rebroadcast soft handoff system provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, video rebroadcast soft handoff system provided by the invention and method are described in detail:
As shown in Figure 2, video rebroadcast soft handoff system provided by the invention, comprising: the vision signal for streaming media form carries out the soft handover parametric controller switched; Described soft handover parametric controller comprises: at least one Streaming Media input interface and at least one Streaming Media output interface.Wherein, described Streaming Media input interface comprises first kind Streaming Media input interface and Equations of The Second Kind Streaming Media input interface; Described first kind Streaming Media input interface is successively by the first wireless network and wireless adapter and the first camera communication, and described Equations of The Second Kind Streaming Media input interface passes through the first cable network and wired adapter and the second camera communication successively.Further, the first wireless network is wifi network and/or GPRS network and/or WCDMA network; Described first cable network is Ethernet.Streaming Media output interface comprises first kind Streaming Media output interface and Equations of The Second Kind Streaming Media output interface; Described first kind Streaming Media output interface is by the second cable network and/or second wireless network and other-end devices communicating, described Equations of The Second Kind Streaming Media output interface is connected with transition card input interface, described transition card output interface is connected with video transmission system, wherein, video transmission system can be conventional video broadcast relay system; Further, second wireless network is wifi network and/or GPRS network and/or WCDMA network; Described second cable network is Ethernet.In the present invention, soft handover parametric controller is computer.Soft handover parametric controller is also connected with memory module.
Application said system, video transmission soft handover method provided by the invention, comprises the following steps:
S1, described soft handover parametric controller receives the vision signal of at least one road stream media format;
This step specifically comprises: the first video camera sends raw video signal, obtain the vision signal of described stream media format after described raw video signal coding, and the vision signal of this stream media format is sent to described soft handover parametric controller by cable network and/or wireless network; Described soft handover parametric controller receives the vision signal of described stream media format.
S2, the vision signal of described soft handover parametric controller to the described stream media format received is screened, and determines the vision signal of stream media format described in the road that needs export;
Therefore, by soft handover parametric controller, directly realize the output of vision signal, and do not need to use complicated video switching matrix, thus simplify the configuration complexity of whole system, reduce the hardware cost of whole system.
By arranging soft handover parametric controller, soft handover parametric controller can be made to possess multiclass function, required vision signal can be exported flexibly, meeting the demand of video viewers, concrete, include but not limited to following seven kinds of situations:
(1) resolution
Soft handover parametric controller judges that whether the resolution of the vision signal of stream media format described in each road of receiving is identical, if judged result is no, be first then identical resolution by the conversion of resolution of the vision signal of stream media format described in each road, and then determine the vision signal needing the stream media format exported;
Or described soft handover parametric controller judges that whether the resolution of the vision signal of stream media format described in each road of receiving is identical, if judged result is yes, then direct the vision signal of stream media format described in each road to be exported by initial resolution;
By this step, soft handover parametric controller can determine the resolution of the vision signal exported flexibly, improves the range of application of whole video transmission soft handover method.
(2) handoff list
Soft handover parametric controller generates handoff list, and described in described handoff list record preset time period Nei Duige road, the vision signal of stream media format carries out the transfer sequence switched;
When again receiving the vision signal of stream media format described in each road, by the described transfer sequence of described handoff list record, the vision signal of stream media format described in each road is switched.
By setting up handoff list, using soft handover parametric controller, the simple and effective vision signal to going the same way mutually can switching, and switching filtering algorithm when not needing to switch each time, need be run, thus simplify the configuration complexity of video transmission soft handover method.
(3) sound identification module
Soft handover parametric controller arranges sound identification module, when described sound identification module recognizes the voice identical with the received pronunciation characteristic stored in received pronunciation storehouse, determine that the vision signal of the stream media format at described voice place is the vision signal needing the stream media format exported.
(4) face recognition module
Soft handover parametric controller arranges face recognition module, when described face recognition module recognizes face customizing messages, determines that the vision signal of the stream media format at described face customizing messages place is the vision signal needing the stream media format exported.
(5) motion identification module
Soft handover parametric controller arranges motion identification module, when described motion identification module recognizes special exercise information, determines that the vision signal of the stream media format at described special exercise information place is the vision signal needing the stream media format exported.
(6) special efficacy
Soft handover parametric controller generates XML file; Described XML file is for recording the handover information of described soft handover parametric controller in preset time period and the trick-play information applied to the vision signal of the stream media format exported.
(7) front-end camera ACTIVE CONTROL
When described soft handover parametric controller receives the switching signal that front-end camera sends, described soft handover parametric controller determines that the vision signal of the stream media format that described front-end camera exports is the vision signal needing the stream media format exported automatically.
S3, described soft handover parametric controller exports the vision signal of the described stream media format that S2 determines.
S4, described soft handover parametric controller exports the vision signal of the described stream media format that S2 determines to transition card;
The vision signal of this stream media format is converted to the vision signal of analog signal format and/or digital sdi signal form by described transition card, and the vision signal of this analog signal format and/or digital sdi signal form is sent to conventional video Play System.
By in this step, achieve docking of soft handover parametric controller and conventional video Play System, convenient by conventional video played video.
In addition, after S1, before S3, also comprise: Sa or Sb:
Sa: the vision signal of the described stream media format that the storage of described soft handover parametric controller receives;
Soft handover parametric controller directly stores the vision signal received by memory module, and does not need by special video tape recorder stored video signal, thus simplifies the hardware configuration of system.
Sb: described soft handover parametric controller is the captions of the vision signal configuration correspondence of the described stream media format received.
This step, soft handover parametric controller, by the captions software preset, namely can configure captions to vision signal, and not need by special film titler, thus simplify the hardware configuration of system.
In sum, video rebroadcast soft handoff system provided by the invention and method, have the following advantages: by soft handover parametric controller, very convenient switching controls is carried out to multi-channel video signal, and add captions and special technique effect only needs can realize by software programming; Whole system is easy to maintenance upgrade; Therefore, have multiple functional, configuration is simple, cost is low and the advantage of highly versatile.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should look protection scope of the present invention.
Claims (1)
1. apply a video transmission soft handover method for video rebroadcast soft handoff system, it is characterized in that, this video rebroadcast soft handoff system vision signal comprised for streaming media form carries out the soft handover parametric controller switched; Described soft handover parametric controller comprises: at least one Streaming Media input interface and at least one Streaming Media output interface; Described soft handover parametric controller is computer; And/or described soft handover parametric controller is also connected with memory module;
Described Streaming Media input interface comprises first kind Streaming Media input interface and Equations of The Second Kind Streaming Media input interface; Described first kind Streaming Media input interface is successively by the first wireless network and wireless adapter and the first camera communication, and described Equations of The Second Kind Streaming Media input interface passes through the first cable network and wired adapter and the second camera communication successively;
Described first wireless network is wifi network and/or GPRS network and/or WCDMA network; Described first cable network is Ethernet;
Described Streaming Media output interface comprises first kind Streaming Media output interface and Equations of The Second Kind Streaming Media output interface; Described first kind Streaming Media output interface is by the second cable network and/or second wireless network and terminal equipment in communication, and described Equations of The Second Kind Streaming Media output interface is connected with transition card input interface, and described transition card output interface is connected with video transmission system;
Video transmission soft handover method comprises the following steps:
S1, described soft handover parametric controller receives the vision signal of at least one road stream media format;
S2, the vision signal of described soft handover parametric controller to the described stream media format received is screened, and determines the vision signal of stream media format described in the road that needs export;
S3, described soft handover parametric controller exports the vision signal of the described stream media format that S2 determines;
Wherein, S1 is specially:
Described first video camera sends raw video signal, obtains the vision signal of described stream media format, and the vision signal of this stream media format is sent to described soft handover parametric controller by cable network and/or wireless network after described raw video signal coding;
Described soft handover parametric controller receives the vision signal of described stream media format;
Described S2 is specially:
Described soft handover parametric controller judges that whether the resolution of the vision signal of stream media format described in each road of receiving is identical, if judged result is no, be first then identical resolution by the conversion of resolution of the vision signal of stream media format described in each road, and then determine the vision signal needing the stream media format exported; And/or
Described soft handover parametric controller judges that whether the resolution of the vision signal of stream media format described in each road of receiving is identical, if judged result is yes, then directly the vision signal of stream media format described in each road to be exported by initial resolution; And/or
Described soft handover parametric controller generates handoff list, and described in described handoff list record preset time period Nei Duige road, the vision signal of stream media format carries out the transfer sequence switched;
When again receiving the vision signal of stream media format described in each road, by the described transfer sequence of described handoff list record, the vision signal of stream media format described in each road is switched; And/or
Described soft handover parametric controller arranges sound identification module, when described sound identification module recognizes the voice identical with the received pronunciation characteristic stored in received pronunciation storehouse, determine that the vision signal of the stream media format at described voice place is the vision signal needing the stream media format exported; And/or
Described soft handover parametric controller arranges face recognition module, when described face recognition module recognizes face customizing messages, determines that the vision signal of the stream media format at described face customizing messages place is the vision signal needing the stream media format exported; And/or
Described soft handover parametric controller arranges motion identification module, when described motion identification module recognizes special exercise information, determines that the vision signal of the stream media format at described special exercise information place is the vision signal needing the stream media format exported; And/or
When described soft handover parametric controller receives the switching signal that front-end camera sends, described soft handover parametric controller determines that the vision signal of the stream media format that described front-end camera exports is the vision signal needing the stream media format exported automatically; And/or
Described soft handover parametric controller generates XML file; Described XML file is for recording the handover information of described soft handover parametric controller in preset time period and the trick-play information applied to the vision signal of the stream media format exported;
After S3, also comprise:
S4, described soft handover parametric controller exports the vision signal of the described stream media format that S2 determines to transition card;
The vision signal of this stream media format is converted to the vision signal of analog signal format and/or digital sdi signal form by described transition card, and the vision signal of this analog signal format and/or digital sdi signal form is sent to conventional video Play System; And/or
After S1, before S3, also comprise:
The vision signal of the described stream media format that the storage of described soft handover parametric controller receives;
After S1, before S3, also comprise:
Described soft handover parametric controller is the captions of the vision signal configuration correspondence of the described stream media format received.
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| CN105472399B (en) | 2015-11-20 | 2019-04-05 | 深圳市奥拓电子股份有限公司 | A kind of rebroadcast video and live display video separation method and device |
| CN106028004A (en) * | 2016-07-25 | 2016-10-12 | 厦门视诚科技有限公司 | Multi-signal input and multi-image composition device and method |
| CN111372012B (en) * | 2020-05-27 | 2020-09-08 | 成都华栖云科技有限公司 | Software defined video stream matrix system and implementation method thereof |
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| CN201765802U (en) * | 2010-08-21 | 2011-03-16 | 青岛海尔软件有限公司 | LED full-color display screen control system |
| CN202772989U (en) * | 2012-08-14 | 2013-03-06 | 北京极光视讯科技发展有限公司 | Video relaying soft handover system |
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|---|---|---|---|---|
| CN1254471A (en) * | 1997-03-11 | 2000-05-24 | Actv公司 | A digital interactive system for providing full interactivity with live programming events |
| CN101809972A (en) * | 2007-08-31 | 2010-08-18 | 诺基亚公司 | Discovering peer-to-peer content using metadata streams |
| CN201717864U (en) * | 2010-07-12 | 2011-01-19 | 北京爱科迪信息通讯技术有限公司 | Portable satellite communication earth station for video transmission |
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