CN102300119B - Hybrid live broadcasting method and equipment - Google Patents
Hybrid live broadcasting method and equipment Download PDFInfo
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- CN102300119B CN102300119B CN201110264033.3A CN201110264033A CN102300119B CN 102300119 B CN102300119 B CN 102300119B CN 201110264033 A CN201110264033 A CN 201110264033A CN 102300119 B CN102300119 B CN 102300119B
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Abstract
The invention discloses a hybrid live broadcasting method and hybrid live broadcasting equipment, which belong to the field of communication. The method comprises the following steps of: detecting whether a broadcasting channel of a cable television Cable network has a live video stream or not; if the broadcasting channel of the cable television cable network is detected to have the live video stream, playing the live video stream to a user; and if the broadcasting channel of the cable television cable network is detected not to have the live video stream, acquiring the live video stream by using an Internet protocol (IP) network, and playing the acquired live video stream to the user. The equipment comprises a detection module, an acquisition module and a playing module. By the method and the equipment, for the live video stream commonly born by the Cable network and the IP network, when the Cable network fails, a user can acquire the live video stream by the IP network to normally watch a program of a live channel, so the reliability of a live video service is enhanced.
Description
Technical field
The present invention relates to the communications field, particularly a kind ofly mix live method and apparatus.
Background technology
In existing radio and television, Digital Television (Digital Television, DTV) just progressively to the evolution of two-way interactive TV, compare the unidirectional digital broadcasting of DTV, the advantage of two-way interactive TV is that user can program request oneself want the program of seeing, can experience for user provides interactively user.For supporting two-way interactive TV, much radio and television manufacturer has adopted the scheme of mixing TV (Hybrid TV), be digital video broadcast for cable (Digital Video Broadcasting-Cable, DVB-C) and IPTV (Internet Protocol Television, IPTV) mix scheme.
The live scheme of existing DVB-C is all to carry live video stream based on cable of cable TV (Cable) network in the mode of broadcast.Particularly, live source is by Asynchronous Serial Interface (Asynchronous Serial Interface, ASI) live video stream is sent to quadrature amplitude modulation (Quadrature Amplitude Modulation, QAM) equipment, QAM equipment will arrive each Set Top Box (Set Top Box by Cable Web broadcast after live video stream modulation, STB), STB will play to user after the live video stream demodulation receiving.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Because live video stream is completely by the Cable network carrying, once Cable network breaks down, user just cannot watch the program of direct broadcast band.
Summary of the invention
In order to solve the problem of prior art, the embodiment of the present invention provides a kind of live method and apparatus that mixes.Described technical scheme is as follows:
On the one hand, in Hybrid TV system, provide a kind of live method of mixing, described method comprises:
Receive the direct broadcast band metadata that business management system BMS sends, described direct broadcast band metadata comprises channel number and procotol IP ways of distribution information;
The direct broadcast band metadata of the direct broadcast band that has mandate is integrated into direct broadcast band menu, and is shown to user, play according to described direct broadcast band menu setecting direct broadcast band by described user;
In the broadcast channel of detection cable of cable TV Cable network, whether there is live video stream;
When the live video stream of the described direct broadcast band of selecting without described user in the broadcast channel that Cable network detected, whether can obtain by IP network according to this live video stream of IP ways of distribution validation of information in the direct broadcast band metadata of obtaining;
If confirm, this live video stream can obtain by IP network, sends video access request to the media distributing network in IPTV IPTV system, and described video access request comprises the channel number that described live video stream is corresponding;
Receive described live video stream that obtained from live source by described media distributing network, that send by described IP network, and the described live video stream obtaining is played to user.
On the other hand, in Hybrid TV system, provide a kind of live equipment that mixes, described equipment comprises:
Receiver module, receives the direct broadcast band metadata that business management system BMS sends, and described direct broadcast band metadata comprises channel number and procotol IP ways of distribution information;
Integrate module, for receive the direct broadcast band metadata of described business management system transmission at described receiver module after, is integrated into direct broadcast band menu by the direct broadcast band metadata of the direct broadcast band that has mandate;
Display module, is shown to user for the direct broadcast band menu that described integrate module is integrated into, and is play according to described direct broadcast band menu setecting live video stream by described user;
Whether detection module, have live video stream in the broadcast channel for detection of cable of cable TV (Cable) network;
Whether judge module, when the live video stream of the described direct broadcast band of selecting without described user in the broadcast channel that Cable network detected, can obtain by IP network according to this live video stream of IP ways of distribution validation of information in the direct broadcast band metadata of obtaining;
Acquisition module, if confirm that for described judge module this live video stream can obtain by IP network, send video access request to the media distributing network in IPTV IPTV system, described video access request comprises the channel number that described live video stream is corresponding, and receives described live video stream that obtained from live source by described media distributing network, that send by described IP network;
Playing module, plays to user for the live video stream that described acquisition module is obtained.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
For the live video stream of Cable network and the common carrying of IP network, in the time that Cable network breaks down, user can obtain live video stream by IP network, make user can normally watch the program of direct broadcast band, strengthen the reliability of live video business, only carry interactive service with respect to IP network in prior art, do not carry live video business, improved the utilance of IP network.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the live method flow diagram of mixing that the embodiment of the present invention one provides;
Fig. 2 is the Hybrid TV configuration diagram that the embodiment of the present invention two provides;
Fig. 3 is the live method flow diagram of mixing that the embodiment of the present invention two provides;
Fig. 4 is the live device structure schematic diagram of mixing that the embodiment of the present invention three provides;
Fig. 5 is that the another kind that the embodiment of the present invention three provides mixes live device structure schematic diagram;
Fig. 6 is that the another kind that the embodiment of the present invention three provides mixes live device structure schematic diagram;
Fig. 7 is that the another kind that the embodiment of the present invention three provides mixes live device structure schematic diagram.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment mono-
The embodiment of the present invention provides a kind of live method of mixing, and referring to Fig. 1, method flow comprises:
101: in the broadcast channel of detection Cable network, whether have live video stream, if live video stream detected, carry out 102, if live video stream do not detected, carry out 103;
102: if live video stream detected, this live video stream is played to user;
103: if live video stream do not detected, obtain this live video stream by IP network, and the live video stream obtaining is played to user.
The method that the embodiment of the present invention provides, for the live video stream of Cable network and the common carrying of IP network, in the time that Cable network breaks down, user can obtain live video stream by IP network, make user can normally watch the program of direct broadcast band, strengthened the reliability of live video business, only carry interactive service with respect to IP network in prior art, do not carry live video business, improved the utilance of IP network.
Embodiment bis-
The embodiment of the present invention provides a kind of live method of mixing, and referring to Fig. 2, is Hybrid TV configuration diagram.If the method that adopts the embodiment of the present invention to provide in Hybrid TV, as shown in Figure 2, backup link using IP network as Cable network, live source sends live video stream to DVB-C broadcast system and IPTV system simultaneously, STB acquiescence is obtained live video stream by the broadcast channel of Cable network, in the time that Cable network breaks down, STB just by IP network from IPTV system acquisition live video stream, make user can normally watch the program of direct broadcast band.Referring to Fig. 3, mix live method flow and comprise:
301: live source sends live video stream to the QAM equipment in DVB-C broadcast system and the MDN (Media Delivery Network, media distributing network) in IPTV system;
Wherein, live source is the source of ground live signal, is generally satellite television receiving equipment, is connected to QAM equipment by ASI interface, is connected to the encoder in MDN by IP mode.In this step, live source is identical to the live video stream of QAM equipment and MDN transmission, and the live video stream that is about to send to QAM equipment all sends to MDN portion.
IPTV system comprises business management system (Business Management System, BMS) and media distributing network (Media Delivery Network, MDN) two parts.BMS has been mainly used in the unified of direct broadcast band and has issued and safeguard, and user is accessed to interactive service and carry out authentication and authorization.MDN is mainly used in distributing concrete Interactive multimedia services, in embodiments of the present invention specifically for live video stream is distributed to STB from IP network.
302:QAM equipment is modulated into the live video stream receiving the live video stream that is applicable to Cable Internet Transmission;
Wherein, this QAM equipment refers to Cable signal modulating equipment, is mainly used in live video stream to be modulated in the broadcast channel of Cable network and to send.
The live video stream receiving is carried out transcoding processing by 303:MDN, generates the live video stream that is applicable to IP network transmission;
Particularly, the live video stream that live source sends over is generally the form of broadcast video signal, need to carry out transcoding processing to the live video stream receiving by the encoder in MDN, change into the multicast or the unicast video data form that are adapted at IP network transmission from the form of broadcast video signal.
Above-mentioned 302 and 303 execution sequence in no particular order, can be carried out simultaneously, also can first carry out 302, then carry out 303, can also first carry out 303, then carry out 302, and the embodiment of the present invention is not construed as limiting this.
304: bimodulus STB electrifying startup, and access IP network;
Wherein, bimodulus STB refers to the Set Top Box of simultaneously supporting DVB-C and IPTV.In embodiments of the present invention, bimodulus STB both can obtain live video stream from the broadcast channel of Cable network, also can from IPTV system, obtain live video stream by IP network.Before bimodulus STB obtains live video stream by IP network, first to successfully access IP network.
305: bimodulus STB sends service authorization request to the BMS in IPTV system;
Particularly, bimodulus STB authorizes to BMS request the business that receives direct broadcast band.
306:BMS authorizes bimodulus STB, and returns to service authorization response;
307: bimodulus STB, by after the mandate of BMS, sends direct broadcast band metadata request to BMS;
Wherein, direct broadcast band metadata is that keeper creates in advance in BMS.Particularly, keeper creates the direct broadcast band metadata of each direct broadcast band in advance on BMS, each direct broadcast band metadata comprises channel number and IP ways of distribution information, in addition, can also comprise the information such as program code, channel frequency, live source address and MDN address of service.Wherein, IP ways of distribution information can be any one in multicast, clean culture and NULL (sky), multicast represents that live video stream mode with multicast in IP network of this direct broadcast band distributes, clean culture represents that live video stream mode with clean culture in IP network of this direct broadcast band distributes, NULL represents that the live video stream of this direct broadcast band only issues by Cable network, can not issue by IP network.BMS creates after the direct broadcast band metadata of each direct broadcast band, and by the direct broadcast band metadata synchronization creating, in MDN, MDN preserves the direct broadcast band metadata of synchronously coming.
308: bimodulus STB receives the direct broadcast band metadata that BMS sends;
It should be noted that, if there is a step to occur unsuccessfully in above-mentioned 304 to 308, this bimodulus STB is operated in monotype state, i.e. DVB-C state can only be from Cable Network Capture live video stream.
309: the direct broadcast band metadata of the direct broadcast band that has mandate is integrated into direct broadcast band menu by bimodulus STB, and be shown to user, carried out the selection of live video stream according to direct broadcast band menu by user;
For example, BMS issues totally one hundred direct broadcast band metadata of bimodulus STB direct broadcast band 1 to 100, what but this bimodulus STB had mandate is the business of direct broadcast band 1 to 60 and 90 to 100, therefore this bimodulus STB by 1 to 60 and 90 to 100 totally 70 direct broadcast bands be integrated into direct broadcast band menu, be shown to user, user can select any one direct broadcast band wherein to watch.
310: in the broadcast channel of bimodulus STB detection Cable network, whether have live video stream, if live video stream detected, carry out 311, if live video stream do not detected, carry out 312;
Particularly, user chooses after direct broadcast band, will obtain the live video stream of this direct broadcast band.Bimodulus STB acquiescence is preferentially obtained live video stream from the broadcast channel of Cable network.
311: bimodulus STB uses broadcast channel decoder to decode to the live video stream detecting from the broadcast channel of Cable network, and plays to user;
312: if live video stream do not detected, bimodulus STB judges whether this live video stream can obtain by IP network, if can obtain by IP network, carries out 313, if can not, flow process finishes;
Wherein, cannot from the broadcast channel of Cable network, obtain live video stream, can comprise following two kinds of situations: one is to detect that Cable network breaks down, this bimodulus STB can't detect the signal of corresponding direct broadcast band in broadcast channel, and another kind is that the live video stream of corresponding direct broadcast band does not issue by Cable network but issues by IP network.
Particularly, bimodulus STB can judge that whether this live video stream can obtain by IP network, is specially according to the direct broadcast band metadata of obtaining from BMS in advance: the direct broadcast band metadata of obtaining this live video stream place direct broadcast band; Whether can obtain by IP network according to this live video stream of IP ways of distribution validation of information in the direct broadcast band metadata of obtaining.For example, according to the channel number of this live video stream place direct broadcast band, the direct broadcast band metadata of having deposited from this locality, find the direct broadcast band metadata matching with this channel number, therefrom obtain IP ways of distribution information, if this IP ways of distribution information is multicast or clean culture, can obtain by IP network, if this IP ways of distribution information is NULL, can not obtain by IP network.
Below 313 and 314 for obtain the concrete steps of this live video stream by IP network.
313: bimodulus STB sends video access request to MDN, and this video access request comprises the channel number that this live video stream is corresponding;
Particularly, the channel number of this live video stream place direct broadcast band is sent to MDN, request MDN issues this live video stream.
314: bimodulus STB receives the live video stream being sent by IP network by MDN;
Particularly, MDN sends live video stream by the mode of multicast or clean culture to this bimodulus STB.
315: bimodulus STB uses IP channel decoder to carry out transcoding processing to the live video stream receiving by IP network, this live video stream is converted to the multicast or the unicast video data form that are applicable to IP network transmission, and play to user.
Particularly, bimodulus STB receives after the live video stream of MDN transmission, need to use IP channel decoder to carry out transcoding processing to this live video stream, this live video stream be converted to the multicast or the unicast video data form that are applicable to IP network transmission, after transcoding, this video playback be watched to user.
Further, in the method providing in the embodiment of the present invention, if bimodulus STB detects that again Cable network recovery is normal, can again switch back Cable network, from the broadcast channel of Cable network, continue to obtain live video stream.
In addition, in the situation that original QAM equipment is not transformed dilatation, if bottleneck appears in the resource of QAM equipment, live broadcast service will be difficult to realize dilatation.For this problem, the embodiment of the present invention can also provide a kind of mechanism, in the situation that QAM equipment is not transformed, supplements the distribution capability of live video business by IP network, realizes the dilatation of live video business, is specifically as follows:
In advance existing direct broadcast band is divided into direct broadcast band and the low direct broadcast band of priority that priority is high, for example average audience ratings can be defined as to the direct broadcast band that priority is high higher than the direct broadcast band of a certain audience ratings preset value, average audience ratings is defined as to the direct broadcast band that priority is low lower than the direct broadcast band of this audience ratings preset value;
When live source sends live video stream, the live video stream of direct broadcast band high priority can be sent to QAM equipment and MDN, the live video stream of direct broadcast band low priority is only sent to MDN, like this, bimodulus STB can be from the live video stream of the high direct broadcast band of Cable Network Capture priority, obtain the live video stream of the direct broadcast band that priority is low from IP network, when Cable network breaks down be simultaneously, can also obtain from IP network the live video stream of the direct broadcast band that priority is high, therefore, the direct broadcast band that priority is low just no longer takies the resource of QAM equipment, but issue by IP network, improve the utilance of IP network, also strengthen the reliability of the live video business that priority is high,
Or, when live source sends live video stream, the live video stream of direct broadcast band high priority only can also be sent to QAM equipment, the live video stream of direct broadcast band low priority is only sent to MDN, in BMS, to create the direct broadcast band metadata of the whole direct broadcast bands that carry in QAM equipment and MDN, can show complete direct broadcast band menu to ensure that bimodulus STB is upper, like this, bimodulus STB can be from the live video stream of the high direct broadcast band of Cable Network Capture priority, obtain the live video stream of the direct broadcast band that priority is low from IP network, therefore, the direct broadcast band that priority is low just no longer takies the resource of QAM equipment, but issue by IP network, improve the utilance of IP network, and the live video stream of the direct broadcast band that priority is high no longer sends to MDN, ensure that live video business can not take the too much resource of IP network.
The method that the embodiment of the present invention provides, by live video stream is sent to QAM equipment and MDN simultaneously, live video stream can jointly be carried in Cable network and IP network, in the time that Cable network breaks down, bimodulus STB just can be by IP network from IPTV system acquisition live video stream, make user can normally watch the program of direct broadcast band, strengthen the reliability of live video business, only carry interactive service with respect to IP network in prior art, do not carry live video business, improved the utilance of IP network.
Embodiment tri-
Referring to Fig. 4, the embodiment of the present invention provides a kind of live equipment that mixes, and this equipment can be bimodulus STB, can, for carrying out the method step of the bimodulus STB in embodiment bis-, comprise:
Detection module 401, for detection of whether there being live video stream in the broadcast channel of Cable network;
Acquisition module 402, in the time that detection module 401 does not detect live video stream, obtains live video stream by IP network;
Playing module 403, the live video stream obtaining for live video stream that detection module 401 is detected or acquisition module 402 plays to user.
Further, acquisition module 402, sends video access request specifically for the MDN in IPTV system, and this video access request comprises the channel number that this live video stream is corresponding; Receive this live video stream that obtained from live source by MDN, that send by IP network.
Further, referring to Fig. 5, this equipment also comprises:
Judge module 404, before obtaining live video stream at acquisition module 402 by IP network, judges that whether this live video stream can obtain by IP network, if so, carries out acquisition module 402.
Again further, referring to Fig. 6, this equipment also comprises:
Sending module 405, after the mandate for the BMS by IPTV system, before whether having live video stream, sends direct broadcast band metadata request to BMS in detection module 401 detects the broadcast channel of Cable network;
Receiver module 406, for after sending module 405 sends direct broadcast band metadata request, receives the direct broadcast band metadata that BMS sends, and direct broadcast band metadata comprises channel number and IP ways of distribution information;
Integrate module 407, for receive the direct broadcast band metadata of BMS transmission at receiver module 406 after, is integrated into direct broadcast band menu by the direct broadcast band metadata of the direct broadcast band that has mandate;
Display module 408, is shown to user for the direct broadcast band menu that integrate module 407 is integrated into, and carries out the selection of live video stream by user according to this direct broadcast band menu;
Correspondingly, judge module 404, specifically for obtaining the direct broadcast band metadata of this live video stream place direct broadcast band; Whether can obtain by IP network according to this live video stream of IP ways of distribution validation of information in the direct broadcast band metadata of obtaining.
Alternatively, referring to Fig. 7, this equipment also comprises:
Decoder module 409, before playing to user for live video stream acquisition module 402 being obtained at playing module 403, the live video stream that uses IP channel decoder to obtain acquisition module 402 carries out transcoding processing, live video stream is converted to the multicast or the unicast video data form that are applicable to IP network transmission.
The equipment that the embodiment of the present invention provides, for the live video stream of Cable network and the common carrying of IP network, in the time that Cable network breaks down, can be by IP network from IPTV system acquisition live video stream, make user can normally watch the program of direct broadcast band, strengthened the reliability of live video business.
It should be noted that: the live equipment of mixing that above-described embodiment provides is in the time of live video, only be illustrated with the division of above-mentioned each functional module, in practical application, can above-mentioned functions be distributed and completed by different functional modules as required, be divided into different functional modules by the internal structure of equipment, to complete all or part of function described above.In addition, the live equipment of mixing that above-described embodiment provides with mix live embodiment of the method and belong to same design, its specific implementation process refers to embodiment of the method, repeats no more here.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can carry out the hardware that instruction is relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
- In 1.Hybrid TV system, a kind ofly mix live method, it is characterized in that, described method comprises:Receive the direct broadcast band metadata that business management system BMS sends, described direct broadcast band metadata comprises channel number and procotol IP ways of distribution information;The direct broadcast band metadata of the direct broadcast band that has mandate is integrated into direct broadcast band menu, and is shown to user, play according to described direct broadcast band menu setecting direct broadcast band by described user;In the broadcast channel of detection cable of cable TV (Cable) network, whether there is live video stream;When the live video stream of the described direct broadcast band of selecting without described user in the broadcast channel that Cable network detected, whether can obtain by IP network according to live video stream described in the IP ways of distribution validation of information in the direct broadcast band metadata of obtaining;If confirm, described live video stream can obtain by IP network, sends video access request to the media distributing network in IPTV IPTV system, and described video access request comprises the channel number that described live video stream is corresponding;Receive described live video stream that obtained from live source by described media distributing network, that send by described IP network, and the described live video stream obtaining is played to user.
- 2. method according to claim 1, is characterized in that, before whether having live video stream, also comprises in the broadcast channel of described detection cable of cable TV (Cable) network:After mandate by the business management system in IPTV system, send direct broadcast band metadata request to described business management system.
- 3. method according to claim 1, is characterized in that, cannot from the broadcast channel of described Cable network, detect and comprise described live video stream:Detect that described Cable network breaks down, or described live video stream is not issued and is issued by described IP network by described Cable network.
- 4. method according to claim 1, is characterized in that, before the described live video stream obtaining is played to user, also comprises:Use IP channel decoder to carry out transcoding processing to the described live video stream obtaining by IP network, described live video stream is converted to the multicast or the unicast video data form that are applicable to described IP network transmission.
- In 5.Hybrid TV system, a kind ofly mix live equipment, it is characterized in that, described equipment comprises:Receiver module, receives the direct broadcast band metadata that business management system BMS sends, and described direct broadcast band metadata comprises channel number and procotol IP ways of distribution information;Integrate module, for receive the direct broadcast band metadata of described business management system transmission at described receiver module after, is integrated into direct broadcast band menu by the direct broadcast band metadata of the direct broadcast band that has mandate;Display module, is shown to user for the direct broadcast band menu that described integrate module is integrated into, and is play according to described direct broadcast band menu setecting live video stream by described user;Whether detection module, have live video stream in the broadcast channel for detection of cable of cable TV (Cable) network;Judge module, when the live video stream of the described direct broadcast band of selecting without described user in the broadcast channel that Cable network detected, whether can obtain by IP network according to live video stream described in the IP ways of distribution validation of information in the direct broadcast band metadata of obtaining;Acquisition module, if confirm that for described judge module described live video stream can obtain by IP network, send video access request to the media distributing network in IPTV IPTV system, described video access request comprises the channel number that described live video stream is corresponding, and receives described live video stream that obtained from live source by described media distributing network, that send by described IP network;Playing module, plays to user for the live video stream that described acquisition module is obtained.
- 6. equipment according to claim 5, is characterized in that, described equipment also comprises:Sending module, after the mandate for the business management system by IPTV system, before whether having live video stream, sends direct broadcast band metadata request to described business management system in the broadcast channel of described detection module detection Cable network.
- 7. equipment according to claim 5, is characterized in that, described equipment also comprises:Decoder module, before playing to user for the live video stream described acquisition module being obtained at described playing module, the described live video stream that uses IP channel decoder to obtain described acquisition module carries out transcoding processing, described live video stream is converted to the multicast or the unicast video data form that are applicable to described IP network transmission.
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| CN201110264033.3A CN102300119B (en) | 2011-09-07 | 2011-09-07 | Hybrid live broadcasting method and equipment |
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| CN201110264033.3A CN102300119B (en) | 2011-09-07 | 2011-09-07 | Hybrid live broadcasting method and equipment |
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