CN106412719A - Realization method of video mixture play, apparatus and system thereof - Google Patents

Realization method of video mixture play, apparatus and system thereof Download PDF

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Publication number
CN106412719A
CN106412719A CN201510482033.9A CN201510482033A CN106412719A CN 106412719 A CN106412719 A CN 106412719A CN 201510482033 A CN201510482033 A CN 201510482033A CN 106412719 A CN106412719 A CN 106412719A
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China
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hls
unicast
terminal
numbering
fast
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CN201510482033.9A
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CN106412719B (en
Inventor
谢柯
解锦明
俞洋
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China Mobile Group Jiangsu Co Ltd
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China Mobile Group Jiangsu Co Ltd
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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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/6437—Real-time Transport Protocol [RTP]
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/64—Addressing
    • H04N21/6405—Multicasting
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/64—Addressing
    • H04N21/6408—Unicasting
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/845—Structuring of content, e.g. decomposing content into time segments
    • H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The invention discloses a realization method of video mixture play, an apparatus and a system thereof. The method comprises the following step that when determining that an RTP multicast has no flow, a terminal realizes play of an HLS unicast flow according to HLS unicast flow data issued by a center content distribution management platform based on an HLS fast forward and fast backward index, wherein the HLS fast forward and fast backward index is acquired by a correction controller through calibrating a time stamp and a number of an RTP data packet finally received by a terminal through a multicast channel, and includes corresponding relations of the HLS time stamp and a fragment, and the HLS time stamp and a fragment byte offset amount. Therefore, conversion to an HLS unicast when the RTP multicast has no flow is realized. Compared to an existing scheme of realizing multicast no-flow conversion based on RTP, by using the method, the apparatus and the system of the invention, switching to a code rate is realized according to an actual condition of a terminal user bandwidth, and a good video play experience is provided for a user in a non-guaranteed network.

Description

A kind of implementation method of video mixed seeding, apparatus and system
Technical field
The present invention relates to data service technical field, more particularly, to a kind of implementation method of video mixed seeding, device And system.
Background technology
With the continuous development of Internet communication technology and multimedia technology, and broadband network is constantly general And, internet video business also rapid rising therewith.For internet video live broadcast service, existing main flow Technology includes unicast and two kinds of forms of multicast, i.e. end side, when receiving live TV stream, can be connect with unicast fashion Receive live TV stream it is also possible to multicast form receives live TV stream.But, if end side is received directly with multicast form Broadcast stream, then because terminal side equipment supports the restriction of situation, may result in and be difficult to based on the live of multicast groupses Realize, be at this moment accomplished by when solving the problems, such as that multicast no flows turning unicast to realize the mixed deployment of multicast, unicast.
Specifically, no the circulate method of unicast of existing multicast is based on RTP (Real-time Transport Protocol, RTP) realize, when no flowing based on the multicast of RTP, still it is converted into being based on The unicast of RTP, such as when RTP multicast no flows, sets up new RTP unicast channel, treats that unicast channel is built After good, exit multicast channel, and the RTP unicast data that please look for novelty.Specifically, terminal can be according to record The time stamp of RTP packet finally being received by multicast channel and numbering, after treatment, to streaming media service The play time corresponding to the time stamp of RTP packet that device request finally receives from described multicast channel is left The new RTP unicast data beginning.
But, the unicast requirement of real-time based on RTP is higher, and self terminal sets up phase with streaming media server Should connect, until terminal breaks the connection and streaming media server between, streaming media server is protected always Hold the connection status with terminal, so that video content caching is less, affected by network condition very big, Good video live broadcast service cannot be provided for user on the network of no guarantee, lead to Consumer's Experience not good. Further, since RTP is commonly based on UDP (User Datagram Protocol, UDP) Realize, easily blocked by fire wall or proxy server, thus also can there is reduction net cast industry further The quality of business, reduces the problem of Consumer's Experience.
That is, existing multicast no circulates, the implementation method of unicast exists due to the unicast based on RTP in fact The requirement of when property is higher, and the problem of the quality that cannot ensure internet video live broadcast service leading to, therefore, Need the implementation method providing a kind of new multicast no to circulate unicast badly, to solve the problems referred to above that presently, there are.
Content of the invention
Embodiments provide a kind of implementation method of video mixed seeding, apparatus and system, in order to solve mesh Front presence due to the unicast requirement of real-time based on RTP higher, and lead to not ensure internet video straight Broadcast the problem of the quality of business.
Embodiments provide a kind of implementation method of video mixed seeding, including：
Terminal, when determining that RTP multicast no flows, is exited multicast channel recording and is finally received by multicast channel The timestamp of RTP packet arriving and numbering；
Unicast playing request, described list are sent to centre point distribution management platform according to preset unicast address Broadcast the timestamp carrying described RTP packet in playing request and numbering, to be distributed by described centre point Management platform issues time stamp correction instruction according to described unicast playing request to correcting controller, by described correction Controller, according to described time stamp correction instruction, the timestamp of described RTP packet and numbering is calibrated to super literary composition This live TV stream HLS fast forwarding and fast rewinding indexes and is sent to described centre point distribution management platform, described HLS The corresponding relation of HLS timestamp and burst and burst byte offsets is comprised in fast forwarding and fast rewinding index；
Receive described centre point and distribute the HLS that management platform issues according to described HLS fast forwarding and fast rewinding index Unicast flow data, and the broadcasting of HLS unicast stream is realized according to the HLS unicast flow data receiving.
Further, receive described centre point distribution management platform to be indexed according to described HLS fast forwarding and fast rewinding The HLS unicast flow data issuing, and HLS unicast stream is realized according to the HLS unicast flow data receiving Play, including：
Receive described centre point and distribute the main rope that management platform sends according to described HLS fast forwarding and fast rewinding index Quotation part, and according to the described master index file receiving to described centre point distribution management platform request phase Code rate corresponding subindex file；
Receive described centre point and distribute the corresponding subindex file of described phase code rate that management platform sends, And patted to described centre point dispensing tube according to the corresponding subindex file of described phase code rate receiving Platform asks the slicing files of corresponding first numbering of described phase code rate；
Receive described centre point and distribute corresponding first numbering of described phase code rate that management platform sends Slicing files are simultaneously play；
Ask the slicing files of the corresponding next numbering of described phase code rate successively and play, until being played to Last slicing files of described phase code rate or receive and corresponding stop viewing instruction.
Further, methods described also includes：
Determine itself current play status, and described current play status are informed described centre point dispensing tube Platform.
Further, the embodiment of the present invention additionally provides a kind of implementation method of video mixed seeding, including：
Centre point distributes the unicast playing request that management platform receiving terminal sends, described unicast playing request For described terminal when determining that RTP multicast no flows, distributed to described centre point according to preset unicast address Management platform sends, and, carry described terminal in described unicast playing request last by multicast channel The timestamp of RTP packet receiving and numbering；
Described unicast playing request according to receiving issues time stamp correction instruction to correcting controller, when described The described RTP packet finally receiving by multicast channel of terminal to report is carried in stamp correction instruction Timestamp and numbering, with by described correcting controller according to described time stamp correction instruction, by described RTP The timestamp of packet and numbering are calibrated to HLS fast forwarding and fast rewinding index, in described HLS fast forwarding and fast rewinding index Comprise the corresponding relation of HLS timestamp and burst and burst byte offsets；
Receive the described HLS fast forwarding and fast rewinding index that described correcting controller sends, and fast according to described HLS Enter rewind and index and issue HLS unicast flow data to described terminal, with by described terminal according to the institute receiving State the broadcasting that HLS unicast flow data realizes HLS unicast stream.
Further, indexed according to described HLS fast forwarding and fast rewinding and issue HLS unicast flow data to described terminal, To be realized the broadcasting of HLS unicast stream according to the described HLS unicast flow data receiving by described terminal, bag Include：
Indexed according to described HLS fast forwarding and fast rewinding and issue master index file to described terminal；
Receive described terminal according to the described master index file transmission receiving for asking phase code rate pair First request of the subindex file answered, and ask to issue described corresponding code to described terminal according to described first Rate corresponding subindex file；
Receive described terminal according to being used for that the corresponding subindex file of described phase code rate receiving sends Ask the second request of the slicing files of corresponding first numbering of described phase code rate, and according to described second Ask to issue the slicing files of corresponding first numbering of described phase code rate to described terminal, with by described terminal Play the slicing files of corresponding first numbering of the described phase code rate receiving；
Receive that described terminal sends successively for ask the corresponding next numbering of described phase code rate point The request of piece file, and the corresponding next volume of described phase code rate is issued to described terminal according to respective request Number slicing files, until under distribute last slicing files or no longer receive the use that described terminal sends Request in the slicing files asking the corresponding next numbering of described phase code rate.
Further, methods described also includes：
Receive the current play status information of the described terminal of described terminal to report, and according to described currently playing Status information knows the current play status of described terminal.
Further, the embodiment of the present invention additionally provides a kind of implementation method of video mixed seeding, including：
Correcting controller receives centre point and distributes the time stamp correction instruction that management platform issues, described time stamp school Terminal is carried when determining that RTP multicast no flows, the RTP finally receiving by multicast channel in positive order The timestamp of packet and numbering；
According to described time stamp correction instruction, the timestamp of described RTP packet and numbering are calibrated to HLS Fast forwarding and fast rewinding indexes, and comprises HLS timestamp and burst and burst word in described HLS fast forwarding and fast rewinding index The corresponding relation of section side-play amount；
Send described HLS fast forwarding and fast rewinding index to described centre point distribution management platform, with by described Heart content distribution and management platform index according to described HLS fast forwarding and fast rewinding and issue HLS unicast to described terminal Flow data, is realized the broadcasting of HLS unicast stream by described terminal according to the HLS unicast flow data receiving.
Further, the embodiment of the present invention additionally provides a kind of terminal, including：
Recording unit, for when determining that RTP multicast no flows, exiting multicast channel and recording logical by multicast The timestamp of RTP packet and numbering that road finally receives；
Transmitting element, broadcasts for sending unicast according to preset unicast address to centre point distribution management platform Put request, carry timestamp and the numbering of described RTP packet in described unicast playing request, with by institute State centre point distribution management platform and time stamp correction is issued to correcting controller according to described unicast playing request Instruction, by described correcting controller according to described time stamp correction instruction, by the timestamp of described RTP packet It is calibrated to HLS fast forwarding and fast rewinding with numbering and index and be sent to described centre point distribution management platform, described The corresponding relation of HLS timestamp and burst and burst byte offsets is comprised in HLS fast forwarding and fast rewinding index；
Processing unit, for receiving described centre point distribution management platform according to described HLS fast forwarding and fast rewinding Index the HLS unicast flow data issuing, and HLS unicast is realized according to the HLS unicast flow data receiving The broadcasting of stream.
Further, described processing unit, specifically for receive described centre point distribution management platform according to The master index file that described HLS fast forwarding and fast rewinding index sends, and according to the described master index file receiving To described centre point distribution management platform request phase code rate corresponding subindex file；And,
Receive described centre point and distribute the corresponding subindex file of described phase code rate that management platform sends, And patted to described centre point dispensing tube according to the corresponding subindex file of described phase code rate receiving Platform asks the slicing files of corresponding first numbering of described phase code rate；And,
Receive described centre point and distribute corresponding first numbering of described phase code rate that management platform sends Slicing files are simultaneously play；And,
Ask the slicing files of the corresponding next numbering of described phase code rate successively and play, until being played to Last slicing files of described phase code rate or receive and corresponding stop viewing instruction.
Further, described transmitting element, is additionally operable to determine itself current play status, and will be described current Broadcast state informs described centre point distribution management platform.
Further, the embodiment of the present invention additionally provides a kind of centre point distribution management platform, including：
Receiving unit, the unicast playing request sending for receiving terminal, described unicast playing request is described Terminal, when determining that RTP multicast no flows, pats to described centre point dispensing tube according to preset unicast address Platform sends, and, carry described terminal in described unicast playing request and finally received by multicast channel The timestamp of RTP packet and numbering；
Transmitting element, for issuing time stamp school according to the described unicast playing request receiving to correcting controller Positive order, carries the institute finally receiving by multicast channel of terminal to report in described time stamp correction instruction State timestamp and the numbering of RTP packet, with by described correcting controller according to described time stamp correction instruction, The timestamp of described RTP packet and numbering are calibrated to HLS fast forwarding and fast rewinding index, described HLS F.F. The corresponding relation of HLS timestamp and burst and burst byte offsets is comprised in rewind index；
Processing unit, for receiving the described HLS fast forwarding and fast rewinding index that described correcting controller sends, and Indexed according to described HLS fast forwarding and fast rewinding and issue HLS unicast flow data to described terminal, with by described terminal Described HLS unicast flow data according to receiving realizes the broadcasting of HLS unicast stream.
Further, described processing unit, specifically for indexing to described according to described HLS fast forwarding and fast rewinding Terminal issues master index file；And,
Receive described terminal according to the described master index file transmission receiving for asking phase code rate pair First request of the subindex file answered, and ask to issue described corresponding code to described terminal according to described first Rate corresponding subindex file；And,
Receive described terminal according to being used for that the corresponding subindex file of described phase code rate receiving sends Ask the second request of the slicing files of corresponding first numbering of described phase code rate, and according to described second Ask to issue the slicing files of corresponding first numbering of described phase code rate to described terminal, with by described terminal Play the slicing files of corresponding first numbering of the described phase code rate receiving；And,
Receive that described terminal sends successively for ask the corresponding next numbering of described phase code rate point The request of piece file, and the corresponding next volume of described phase code rate is issued to described terminal according to respective request Number slicing files, until under distribute last slicing files or no longer receive the use that described terminal sends Request in the slicing files asking the corresponding next numbering of described phase code rate.
Further, described receiving unit, is additionally operable to receive currently broadcasting of the described terminal of described terminal to report Put status information, and know the current play status of described terminal according to described current play status information.
Further, the embodiment of the present invention additionally provides a kind of correcting controller, including：
Receiving unit, distributes, for receiving centre point, the time stamp correction instruction that management platform issues, when described Carry terminal in stamp correction instruction when determining that RTP multicast no flows, finally received by multicast channel The timestamp of RTP packet and numbering；
Processing unit, for according to described time stamp correction instruction, by the timestamp of described RTP packet and volume Number be calibrated to HLS fast forwarding and fast rewinding index, comprise in described HLS fast forwarding and fast rewinding index HLS timestamp with point Piece and the corresponding relation of burst byte offsets；
Transmitting element, for sending described HLS fast forwarding and fast rewinding rope to described centre point distribution management platform Draw, to be indexed to described end from the distribution of described centre point and management platform according to described HLS fast forwarding and fast rewinding End issues HLS unicast flow data, realizes HLS by described terminal according to the HLS unicast flow data receiving The broadcasting of unicast stream.
Further, what the embodiment of the present invention additionally provided a kind of video mixed seeding realizes system, including：
Terminal, for when determining that RTP multicast no flows, exiting multicast channel and recording by multicast channel The timestamp of RTP packet receiving afterwards and numbering, and, according to preset unicast address in intracardiac Hold distribution management platform and send unicast playing request, in described unicast playing request, carry described RTP data The timestamp of bag and numbering, and, receive described centre point distribution management platform fast according to HLS F.F. Move back the HLS unicast flow data that index issues, and it is mono- to realize HLS according to the HLS unicast flow data receiving Broadcast the broadcasting of stream；
Described centre point distributes management platform, for receiving the unicast playing request that described terminal sends, and Time stamp correction instruction, described time stamp school are issued to correcting controller according to the described unicast playing request receiving Carry in positive order terminal to report the described RTP packet being finally received by multicast channel when Between stamp and numbering, and, receive the described HLS fast forwarding and fast rewinding index that described correcting controller sends, and Indexed according to described HLS fast forwarding and fast rewinding and issue HLS unicast flow data to described terminal；
Described correcting controller, refers to for receiving the time stamp correction that described centre point distribution management platform issues Order, and according to described time stamp correction instruction, the timestamp of described RTP packet and numbering are calibrated to described HLS fast forwarding and fast rewinding indexes, and comprises HLS timestamp and burst and divide in described HLS fast forwarding and fast rewinding index The corresponding relation of piece byte offsets, and, send described HLS to described centre point distribution management platform Fast forwarding and fast rewinding indexes.
The present invention has the beneficial effect that：
Embodiments provide a kind of implementation method of video mixed seeding, apparatus and system, terminal determines When RTP multicast no flows, exit multicast channel and record the RTP packet finally receiving by multicast channel Timestamp and numbering, and according to preset unicast address to centre point distribution management platform send unicast broadcast Put request, carry timestamp and the numbering of described RTP packet in described unicast playing request, with by institute State centre point distribution management platform and time stamp correction is issued to correcting controller according to described unicast playing request Instruction, by described correcting controller according to described time stamp correction instruction, by the timestamp of described RTP packet It is calibrated to HLS fast forwarding and fast rewinding with numbering and index and be sent to described centre point distribution management platform, described The corresponding relation of HLS timestamp and burst and burst byte offsets is comprised in HLS fast forwarding and fast rewinding index, And, receive described centre point and distribute the HLS that management platform issues according to described HLS fast forwarding and fast rewinding index Unicast flow data, and the broadcasting of HLS unicast stream is realized according to the HLS unicast flow data receiving.
That is, in technical scheme described in the embodiment of the present invention, terminal when determining that RTP multicast no flows, The HLS issuing can be indexed based on HLS fast forwarding and fast rewinding according to the centre point distribution management platform receiving mono- Broadcast the broadcasting that flow data realizes HLS unicast stream, described HLS fast forwarding and fast rewinding index is correcting controller to end Obtained by holding the timestamp of RTP packet finally receiving by multicast channel to be calibrated with numbering, Wherein comprise the corresponding relation of HLS timestamp and burst and burst byte offsets, it is achieved thereby that RTP To the conversion of HLS unicast when multicast no flows, thus with respect to existing based on RTP transmission technology realize Multicast no circulates for the scheme changed, and can realize code check is cut according to the practical situation of end user bandwidth Change, be that user provides good video playback experience on the network of no guarantee.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to institute in embodiment description Need the accompanying drawing using to briefly introduce it should be apparent that, drawings in the following description are only the present invention Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, Other accompanying drawings can also be obtained according to these accompanying drawings.
The flow process that Fig. 1 show the implementation method of a kind of video mixed seeding described in the embodiment of the present invention one is illustrated Figure；
The flow process that Fig. 2 show the implementation method of a kind of video mixed seeding described in the embodiment of the present invention two is illustrated Figure；
The flow process that Fig. 3 show the implementation method of a kind of video mixed seeding described in the embodiment of the present invention three is illustrated Figure；
The flow process that Fig. 4 show the implementation method of a kind of video mixed seeding described in the embodiment of the present invention four is illustrated Figure；
Fig. 5 show a kind of structural representation of the terminal described in the embodiment of the present invention five；
Fig. 6 show described in the embodiment of the present invention five a kind of in intracardiac dispensing tube platform structural representation Figure；
Fig. 7 show a kind of structural representation of the correcting controller described in the embodiment of the present invention five；
Fig. 8 show a kind of structural representation realizing system of the video mixed seeding described in the embodiment of the present invention five Figure.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing to this Bright be described in further detail it is clear that described embodiment is only a part of embodiment of the present invention, Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing The all other embodiment being obtained under the premise of going out creative work, broadly falls into the scope of protection of the invention.
Embodiment one：
The embodiment of the present invention one provides a kind of implementation method of video mixed seeding, as shown in figure 1, it is this The schematic flow sheet of the implementation method of video mixed seeding described in bright embodiment one, methods described may include following step Suddenly：
Step 101：Terminal, when determining that RTP multicast no flows, exits multicast channel and records logical by multicast The timestamp of RTP packet and numbering that road finally receives.
It should be noted that described terminal can be the arbitrarily terminal such as STB terminal, as long as it can support IGMP (Internet Group Management Protocol, the Internet Group Management Protocol), RTSP (Real Time Streaming Protocol, RTP)/TS, HLS protocol etc., the embodiment of the present invention pair This does not repeat.
Step 102：Sending unicast broadcasting according to preset unicast address to centre point distribution management platform please Ask, in described unicast playing request, carry timestamp and the numbering of described RTP packet, with by described Intracardiac distribution management platform of holding issues time stamp correction instruction according to described unicast playing request to correcting controller, By described correcting controller according to described time stamp correction instruction, by the timestamp of described RTP packet and numbering It is calibrated to HLS fast forwarding and fast rewinding to index and be sent to described centre point distribution management platform, described HLS is fast Enter the corresponding relation comprising HLS timestamp and burst and burst byte offsets in rewind index.
That is, terminal is after exiting RTP multicast channel, can be according to preset unicast address (this ground Location can be configured according to practical situation) carry described RTP to centre point distribution management platform transmission The timestamp of packet and the unicast playing request of numbering, to apply for unicast broadcasting.
Correspondingly, centre point distributes management platform when receiving the unicast playing request of terminal transmission, can Referred to by sending the time stamp correction of the timestamp and numbering carrying described RTP packet to correcting controller The mode of order, instruction correcting controller is calibrated to the timestamp of described RTP packet and numbering, with To corresponding HLS fast forwarding and fast rewinding index, and and then receive correcting controller return described HLS F.F. fast Move back index.
It should be noted that correcting controller divides to centre point except can return to HLS fast forwarding and fast rewinding and indexing Send out outside management platform, also can return to corresponding HLS code check and distribute management platform to centre point, wherein, Corresponding HLS code check can be the corresponding code check of accessing terminal to network actual bandwidth, and the embodiment of the present invention is to this Do not repeat.
Step 103：Receive under described centre point distribution management platform indexes according to described HLS fast forwarding and fast rewinding The HLS unicast flow data sent out, and broadcasting of HLS unicast stream is realized according to the HLS unicast flow data receiving Put.
That is, in technical scheme described in the embodiment of the present invention, terminal when determining that RTP multicast no flows, The HLS unicast flow data that management platform is issued based on HLS fast forwarding and fast rewinding index can be distributed according to centre point Realize the broadcasting of HLS unicast stream, described HLS fast forwarding and fast rewinding index is that correcting controller passes through group to terminal Broadcast the timestamp of RTP packet that passage finally receives and obtained by numbering calibrated, wherein comprise HLS timestamp and the corresponding relation of burst and burst byte offsets, it is achieved thereby that RTP multicast is no To the conversion of HLS unicast during stream, thus no circulate with respect to the existing multicast based on RTP realization to change For scheme, can according to the availability of end user bandwidth in terminal rather than on head end video service, Realize the switching to code check, be that user provides good unicast experience on the network of no guarantee.
It should be noted that before step 101, may also include following operation：
Terminal receives centre point and distributes the RTP multicast video streams that management platform is issued by edge C DN, Described RTP multicast video streams can be that content licence plate side carries out after the pre-detection of video quality to video content, It is injected into centre point and distribute management platform.
That is, in embodiment of the present invention, first can be by content licence plate side to video live broadcast service Video film source audited, after the pre-detection carrying out video quality more intracardiac during video content is injected Hold distribution management platform, video content be distributed to for two grades by edge C DN by centre point distribution management platform, Again RTP multicast video streams are issued to by terminal by edge C DN, afterwards, invalid in the drop-down multicast data flow of terminal When, executable step 101, i.e. exit multicast channel and record the RTP finally receiving by multicast channel The timestamp of packet and numbering, the embodiment of the present invention does not repeat to this.
Further, receive described centre point distribution management platform to be indexed according to described HLS fast forwarding and fast rewinding The HLS unicast flow data issuing, and HLS unicast stream is realized according to the HLS unicast flow data receiving Play, following steps A1-A4 can be embodied as：
Step A1：Receive described centre point distribution management platform and transmission is indexed according to described HLS fast forwarding and fast rewinding Master index file, and according to the described master index file receiving to described centre point distribute management platform Request phase code rate corresponding subindex file.
Specifically, described master index file is index.m3u8 master index file.Further optionally, main Index file can be that centre point distributes the HLS code check that management platform returns according to correcting controller before And described HLS fast forwarding and fast rewinding indexes and sends to terminal.
Specifically, terminal is receiving described centre point distribution management platform according to described HLS fast forwarding and fast rewinding After the data of index.m3u8 master index file that index sends, can be to the index.m3u8 master index receiving The data of file is parsed, and obtains media play list, and according to the media play list obtaining to described Centre point distribution management platform request phase code rate corresponding subindex file.
Step A2：Receive described centre point and distribute the corresponding sub- rope of described phase code rate that management platform sends Quotation part, and distributed to described centre point according to the corresponding subindex file of described phase code rate receiving Management platform asks the slicing files of corresponding first numbering of described phase code rate.
Specifically, described subindex file is index.m3u8 subindex file.
In addition, terminal can send HTTP request by distributing management platform to centre point, ask described phase The slicing files (that is, TS file) of corresponding first numbering of code rate.
Step A3：Receive described centre point and distribute the described phase code rate corresponding first that management platform sends The slicing files of numbering are simultaneously play.
Alternatively, terminal can provide terminal unrelated unified call method, calls for licence plate side APK to be regarded The broadcasting of frequency content.
Step A4：Ask the slicing files of the corresponding next numbering of described phase code rate successively and play, directly To last slicing files being played to described phase code rate or receive and corresponding stop viewing instruction.
Similarly, terminal can send HTTP request by distributing management platform to centre point, and request is described The slicing files (TS file) of the corresponding next numbering of phase code rate.
In addition, being played to last slicing files (TS file) or receiving corresponding stopping viewing instruction (when i.e. user stops viewing), terminal can be closed all TCP and be connected.
Further, it should be noted that centre point distribution management platform is issuing master index file, subindex When terminal given by file and slicing files etc., generally can be forwarded to terminal via edge C DN, the present invention is implemented Example does not repeat to this.
Further, methods described may also include：
Determine itself current play status, and described current play status are informed described centre point dispensing tube Platform.
Alternatively, terminal can obtain interface by the player status of itself configuration, and described terminal is current Broadcast state informs described centre point distribution management platform, and whether successfully etc. such as multicast no circulates unicast, So that centre point distribution management platform can timely and accurately understand the SOT state of termination, the embodiment of the present invention pair This does not repeat.
The embodiment of the present invention one provides a kind of implementation method of video mixed seeding, and terminal determines that RTP multicast no flows When, exit multicast channel and record the timestamp of RTP packet finally receiving by multicast channel and volume Number, and unicast playing request is sent to centre point distribution management platform according to preset unicast address, described Timestamp and the numbering of described RTP packet is carried, to be divided by described centre point in unicast playing request Send out management platform and time stamp correction instruction is issued to correcting controller according to described unicast playing request, by described school Positive control device, according to described time stamp correction instruction, the timestamp of described RTP packet and numbering is calibrated to HLS fast forwarding and fast rewinding indexes and is sent to described centre point distribution management platform, described HLS fast forwarding and fast rewinding The corresponding relation of HLS timestamp and burst and burst byte offsets is comprised in index, and, receive Described centre point distributes the HLS unicast fluxion that management platform issues according to described HLS fast forwarding and fast rewinding index According to, and the broadcasting of HLS unicast stream is realized according to the HLS unicast flow data receiving.
That is, in technical scheme described in the embodiment of the present invention, terminal when determining that RTP multicast no flows, The HLS unicast flow data that management platform is issued based on HLS fast forwarding and fast rewinding index can be distributed according to centre point Realize the broadcasting of HLS unicast stream, described HLS fast forwarding and fast rewinding index is that correcting controller passes through group to terminal Broadcast the timestamp of RTP packet that passage finally receives and obtained by numbering calibrated, wherein comprise HLS timestamp and the corresponding relation of burst and burst byte offsets, it is achieved thereby that RTP multicast is no To the conversion of HLS unicast during stream, thus no circulate with respect to the existing multicast based on RTP realization to change For scheme, can according to the availability of end user bandwidth in terminal rather than on head end video service, Realize the switching to code check, be that user provides good unicast experience on the network of no guarantee.
Embodiment two
The embodiment of the present invention two is distributed as a example management platform execution by centre point, in the embodiment of the present invention one The implementation method of described video mixed seeding is further described, as shown in Fig. 2 it is the embodiment of the present invention two The schematic flow sheet of the described implementation method of video mixed seeding, methods described may include following steps：
Step 201：Centre point distributes the unicast playing request that management platform receiving terminal sends, described list Broadcast playing request be described terminal when determining that RTP multicast no flows, according to preset unicast address in described Intracardiac holding distribution management platform transmission, and, carry described terminal in described unicast playing request and pass through group Broadcast the timestamp of RTP packet and the numbering that passage finally receives.
It should be noted that centre point distribution management platform mainly can be by centered video dissemination system, center Resource scheduling system, center media service system, center service management system composition, and containing overall scheduling, Multiple subsystem such as content center, service node, operation management, network management, access control, can be used for Receive the video content of content licence plate side, complete the distribution to edge C DN of video content, completion system Business and the function such as accounting management, the embodiment of the present invention do not repeat to this.
Step 202：Issue time stamp correction according to the described unicast playing request receiving to correcting controller to refer to Order, is carried in described time stamp correction instruction described in being finally received by multicast channel of terminal to report The timestamp of RTP packet and numbering, incite somebody to action according to described time stamp correction instruction with by described correcting controller The timestamp of described RTP packet and numbering are calibrated to hypertext live TV stream HLS fast forwarding and fast rewinding index, institute State the corresponding pass comprising HLS timestamp and burst and burst byte offsets in HLS fast forwarding and fast rewinding index System.
That is, centre point distributes management platform when receiving the unicast playing request of terminal transmission, Can be by sending the time stamp correction of the timestamp carrying described RTP packet and numbering to correcting controller The mode of instruction, instruction correcting controller is calibrated to the timestamp of described RTP packet and numbering, with Obtain corresponding HLS fast forwarding and fast rewinding index.
Step 203：Receive the described HLS fast forwarding and fast rewinding index that described correcting controller sends, and according to institute State HLS fast forwarding and fast rewinding and index and issue HLS unicast flow data to described terminal, with by described terminal according to connecing The described HLS unicast flow data receiving realizes the broadcasting of HLS unicast stream.
It should be noted that correcting controller divides to centre point except can return to HLS fast forwarding and fast rewinding and indexing Send out outside management platform, also can return to corresponding HLS code check and distribute management platform to centre point, wherein, Corresponding HLS code check can be the corresponding code check of accessing terminal to network actual bandwidth, and the embodiment of the present invention is to this Do not repeat.
That is, in technical scheme described in the embodiment of the present invention, centre point distribution management platform can root According to the terminal receiving in the unicast playing request and correcting controller transmission determining that multicast sends when no flowing Described HLS fast forwarding and fast rewinding index, issue HLS unicast flow data, described HLS F.F. to described terminal Rewind index is the time of the RTP packet that correcting controller is finally received by multicast channel to terminal Stab and number obtained by being calibrated, wherein comprise HLS timestamp and burst and burst byte offset The corresponding relation of amount, to be realized the broadcasting of HLS unicast stream by terminal, it is achieved thereby that RTP multicast no flows When to HLS unicast conversion, thus with respect to existing based on RTP transmission technology realize multicast no flow For the scheme of conversion, the switching that can realize to code check according to the practical situation of end user bandwidth, is use Family provides good video playback experience on the network of no guarantee.
Further, indexed according to described HLS fast forwarding and fast rewinding and issue HLS unicast flow data to described terminal, To be realized the broadcasting of HLS unicast stream according to the described HLS unicast flow data receiving by described terminal, can It is embodied as following steps B1-B4：
Step B1：Indexed according to described HLS fast forwarding and fast rewinding and issue master index file to described terminal.
Specifically, described master index file is index.m3u8 master index file.Further optionally, main Index file can be that centre point distributes the HLS code check that management platform returns according to correcting controller before And described HLS fast forwarding and fast rewinding indexes and sends to terminal, with the index.m3u8 master being received by end-on The data of index file is parsed, and obtains media play list, and according to the media play list obtaining to Described centre point distribution management platform request phase code rate corresponding subindex file.
Step B2：Receive described terminal according to the described master index file transmission receiving for asking phase First request of code rate corresponding subindex file, and ask to issue institute to described terminal according to described first State phase code rate corresponding subindex file.
Specifically, described subindex file is index.m3u8 subindex file.In addition, described first please Ask can by terminal according to the media play list obtaining and the phase code rate itself supported to intracardiac in described Hold distribution management platform send, be used for asking described phase code rate corresponding index.m3u8 subindex file Request, accordingly, described centre point distribution management platform first can be asked under described terminal according to this Send out phase code rate corresponding index.m3u8 subindex file described.
Step B3：Receive described terminal to be sent out according to the corresponding subindex file of described phase code rate receiving Second request of the slicing files for asking corresponding first numbering of described phase code rate sending, and according to Described second ask to described terminal issue described phase code rate corresponding first numbering slicing files, with by The slicing files of corresponding first numbering of described phase code rate that described terminal plays receive.
Specifically, described second request can be HTTP request, and centre point distribution management platform is according to this HTTP request sends the slicing files of corresponding first numbering of described phase code rate (TS literary composition to described terminal Part).
Step B4：Receive that described terminal sends successively for asking the corresponding next one of described phase code rate The request of the slicing files of numbering, and it is corresponding to issue described phase code rate according to respective request to described terminal The slicing files of next numbering, until under distribute last slicing files or no longer receive described terminal The request of the slicing files for asking the corresponding next numbering of described phase code rate sending.
Similarly, centre point distribution management platform can be according to next HTTP request receiving, to described Terminal sends the slicing files (TS file) of the corresponding next numbering of described phase code rate, until not receiving Terminate sending to next HTTP request or when receiving the instructions such as stopping request, the embodiment of the present invention is to this not Repeat.
Further, it should be noted that centre point distribution management platform issues master index file, subindex literary composition When part and slicing files etc. give terminal, generally can be forwarded to terminal via edge C DN, the present invention is implemented Example does not repeat to this.
Further, methods described may also include：
Receive the current play status information of the described terminal of described terminal to report, and according to described currently playing Status information knows the current play status of described terminal.
The embodiment of the present invention two provides a kind of implementation method of video mixed seeding, in skill described in the embodiment of the present invention In art scheme, centre point distribution management platform can send when determining that multicast no flows according to the terminal receiving Unicast playing request and the described HLS fast forwarding and fast rewinding index that sends of correcting controller, to described terminal Issue HLS unicast flow data, described HLS fast forwarding and fast rewinding index is that correcting controller passes through multicast to terminal Obtained by the timestamp of RTP packet that passage finally receives is calibrated with numbering, wherein comprise HLS timestamp and the corresponding relation of burst and burst byte offsets, to realize HLS unicast by terminal The broadcasting of stream, it is achieved thereby that to the conversion of HLS unicast when RTP multicast no flows, thus with respect to existing No circulate for the scheme changed based on the multicast that RTP transmission technology is realized, can be according to end user bandwidth Practical situation realize switching to code check, be that user provides good video on the network of no guarantee and broadcasts Put experience.
Embodiment three
The embodiment of the present invention three taking correcting controller execution as a example, is mixed to video described in the embodiment of the present invention one The implementation method broadcast is further described, as shown in figure 3, it is the video described in the embodiment of the present invention three The schematic flow sheet of the implementation method of mixed seeding, methods described may include following steps：
Step 301：Correcting controller receives centre point and distributes the time stamp correction instruction that management platform issues, Carry terminal in described time stamp correction instruction when determining that RTP multicast no flows, be followed by most by multicast channel The timestamp of RTP packet receiving and numbering.
Step 302：According to described time stamp correction instruction, by the timestamp of described RTP packet and numbering school Accurate for HLS fast forwarding and fast rewinding index, comprise in described HLS fast forwarding and fast rewinding index HLS timestamp and burst with And the corresponding relation of burst byte offsets.
It should be noted that correcting controller can be used for storage system absolute time, with intracardiac in receiving During the timestamp calibration command of appearance distribution management platform, according to this system absolute time, centre point is distributed The terminal that management platform transmission comes records RTP packet time stamp and the numbering that it finally receives, and it is right to be calibrated to The HLS fast forwarding and fast rewinding index answered, the embodiment of the present invention does not repeat to this.
Step 303：Send described HLS fast forwarding and fast rewinding index to described centre point distribution management platform, with Indexed according to described HLS fast forwarding and fast rewinding and issued to described terminal from the distribution of described centre point and management platform HLS unicast flow data, realizes HLS unicast stream by described terminal according to the HLS unicast flow data receiving Broadcasting.
It should be noted that correcting controller divides to centre point except can return to HLS fast forwarding and fast rewinding and indexing Send out outside management platform, also can return to corresponding HLS code check and distribute management platform to centre point, wherein, Corresponding HLS code check can be the corresponding code check of accessing terminal to network actual bandwidth, and the embodiment of the present invention is to this Do not repeat.
That is, in technical scheme described in the embodiment of the present invention, correcting controller can be according to receiving Carry the timestamp of RTP packet and the time stamp school numbered that terminal is finally received by multicast channel Positive order, the timestamp of described RTP packet and numbering are calibrated to HLS fast forwarding and fast rewinding index, described HLS fast forwarding and fast rewinding index comprises the corresponding relation of HLS timestamp and burst and burst byte offsets, And described HLS fast forwarding and fast rewinding index is sent to described centre point distribution management platform, with by intracardiac Hold distribution management platform to be indexed according to described HLS fast forwarding and fast rewinding, issue HLS unicast fluxion to described terminal According to, the broadcasting of HLS unicast stream is realized by terminal, it is achieved thereby that to HLS unicast when RTP multicast no flows Conversion, thus with respect to existing based on RTP transmission technology realize multicast no circulate the scheme changed Lai Say, the switching that can realize to code check according to the practical situation of end user bandwidth, is user in no guarantee Good video playback experience is provided on network.
Example IV：
The embodiment of the present invention four is with terminal, centre point distribution management platform and correcting controller interaction execution As a example, the implementation method of video mixed seeding described in the embodiment of the present invention one to three is further described, such as Shown in Fig. 4, it is the schematic flow sheet of the implementation method of video mixed seeding described in the embodiment of the present invention four, institute The method of stating may include following steps：
Step 401：When terminal determines that RTP multicast no flows, exit multicast channel and record by multicast channel The timestamp of RTP packet finally receiving and numbering.
Step 402：Terminal sends unicast according to preset unicast address to centre point distribution management platform and broadcasts Put request, in described unicast playing request, carry timestamp and the numbering of described RTP packet.
Step 403：Centre point distribution management platform receives described unicast playing request, and according to receiving Described unicast playing request issue time stamp correction instruction to correcting controller, take in described time stamp correction instruction The timestamp of the described RTP packet being finally received by multicast channel with terminal to report and numbering.
Step 404：Correcting controller receives described time stamp correction instruction, and according to described time stamp correction instruction, The timestamp of described RTP packet and numbering are calibrated to HLS fast forwarding and fast rewinding index, described HLS F.F. The corresponding relation of HLS timestamp and burst and burst byte offsets is comprised in rewind index.
Step 405：It is fast that correcting controller sends described HLS F.F. to described centre point distribution management platform Move back index.
Step 406：Centre point distribution management platform receives described HLS fast forwarding and fast rewinding index, and according to institute State HLS fast forwarding and fast rewinding and index and issue HLS unicast flow data to described terminal.
Step 407：Terminal receives described HLS unicast flow data, and according to described HLS unicast flow data Realize the broadcasting of HLS unicast stream.
Specifically, terminal realizes the concrete reality of the broadcasting of HLS unicast stream according to described HLS unicast flow data Applying can be as described in step A1-A4 in the embodiment of the present invention one, and the embodiment of the present invention does not repeat to this.
That is, in technical scheme described in the embodiment of the present invention, terminal when determining that RTP multicast no flows, The HLS issuing can be indexed based on HLS fast forwarding and fast rewinding according to the centre point distribution management platform receiving mono- Broadcast the broadcasting that flow data realizes HLS unicast stream, described HLS fast forwarding and fast rewinding index is correcting controller to end Obtained by holding the timestamp of RTP packet finally receiving by multicast channel to be calibrated with numbering, Wherein comprise the corresponding relation of HLS timestamp and burst and burst byte offsets, it is achieved thereby that RTP To the conversion of HLS unicast when multicast no flows, thus with respect to existing based on RTP transmission technology realize Multicast no circulates for the scheme changed, and can realize code check is cut according to the practical situation of end user bandwidth Change, be that user provides good video playback experience on the network of no guarantee.
Embodiment five
It is based on and the embodiment of the present invention one identical inventive concept, the embodiment of the present invention five provides a kind of whole End, being embodied as of this terminal can be found in the associated description in said method embodiment one, in place of repetition no longer Repeat, its structural representation is as shown in figure 5, this equipment mainly may include：
Recording unit 51, can be used for, when determining that RTP multicast no flows, exiting multicast channel recording and passing through The timestamp of RTP packet and numbering that multicast channel finally receives；
Transmitting element 52, can be used for sending list according to preset unicast address to centre point distribution management platform Broadcast playing request, in described unicast playing request, carry timestamp and the numbering of described RTP packet, with Time stamp is issued according to described unicast playing request to correcting controller from described centre point distribution management platform Correction instruction, by described correcting controller according to described time stamp correction instruction, by described RTP packet when Between stamp and numbering be calibrated to HLS fast forwarding and fast rewinding and index and be sent to described centre point distribution management platform, The corresponding of HLS timestamp and burst and burst byte offsets is comprised in described HLS fast forwarding and fast rewinding index Relation；
Processing unit 53, can be used for receiving described centre point distribution management platform according to described HLS F.F. The HLS unicast flow data that rewind index issues, and HLS is realized according to the HLS unicast flow data receiving The broadcasting of unicast stream.
Further, described processing unit 53, can distribute management platform specifically for receiving described centre point The master index file being sent according to described HLS fast forwarding and fast rewinding index, and according to the described master index receiving File is to described centre point distribution management platform request phase code rate corresponding subindex file；And,
Receive described centre point and distribute the corresponding subindex file of described phase code rate that management platform sends, And patted to described centre point dispensing tube according to the corresponding subindex file of described phase code rate receiving Platform asks the slicing files of corresponding first numbering of described phase code rate；And,
Receive described centre point and distribute corresponding first numbering of described phase code rate that management platform sends Slicing files are simultaneously play；And,
Ask the slicing files of the corresponding next numbering of described phase code rate successively and play, until being played to Last slicing files of described phase code rate or receive and corresponding stop viewing instruction.
Further, described transmitting element 52, it may also be used for determine itself current play status, and will be described Current play status inform described centre point distribution management platform.
Alternatively, terminal can obtain interface by the player status of itself configuration, and described terminal is current Broadcast state informs described centre point distribution management platform, and whether successfully etc. such as multicast no circulates unicast, So that centre point distribution management platform can timely and accurately understand the SOT state of termination, the embodiment of the present invention pair This does not repeat.
Further, based on the embodiment of the present invention two identical inventive concept, the embodiment of the present invention five also carries Supply a kind of centre point distribution management platform, being embodied as of this equipment can be found in said method embodiment two In associated description, repeat no more in place of repetition, its structural representation is as shown in fig. 6, this equipment mainly may be used Including：
Receiving unit 61, can be used for the unicast playing request of receiving terminal transmission, and described unicast playing request is Described terminal determine RTP multicast no flow when, according to preset unicast address to described centre point dispensing tube Platform sends, and, carry described terminal in described unicast playing request and be followed by most by multicast channel The timestamp of RTP packet receiving and numbering；
Transmitting element 62, can be used for according to the described unicast playing request that receives to correcting controller issue when Stamp correction instruction, carries finally receiving by multicast channel of terminal to report in described time stamp correction instruction The timestamp of described RTP packet and numbering, with by described correcting controller according to described time stamp correction refer to Order, the timestamp of described RTP packet and numbering are calibrated to HLS fast forwarding and fast rewinding index, described HLS The corresponding relation of HLS timestamp and burst and burst byte offsets is comprised in fast forwarding and fast rewinding index；
Processing unit 63, can be used for receiving the described HLS fast forwarding and fast rewinding index that described correcting controller sends, And indexed according to described HLS fast forwarding and fast rewinding and issue HLS unicast flow data to described terminal, with by described end The broadcasting of HLS unicast stream is realized according to the described HLS unicast flow data receiving in end.
Further, described processing unit 63, can specifically for according to described HLS fast forwarding and fast rewinding index to Described terminal issues master index file；And,
Receive described terminal according to the described master index file transmission receiving for asking phase code rate pair First request of the subindex file answered, and ask to issue described corresponding code to described terminal according to described first Rate corresponding subindex file；And,
Receive described terminal according to being used for that the corresponding subindex file of described phase code rate receiving sends Ask the second request of the slicing files of corresponding first numbering of described phase code rate, and according to described second Ask to issue the slicing files of corresponding first numbering of described phase code rate to described terminal, with by described terminal Play the slicing files of corresponding first numbering of the described phase code rate receiving；And,
Receive that described terminal sends successively for ask the corresponding next numbering of described phase code rate point The request of piece file, and the corresponding next volume of described phase code rate is issued to described terminal according to respective request Number slicing files, until under distribute last slicing files or no longer receive the use that described terminal sends Request in the slicing files asking the corresponding next numbering of described phase code rate.
Further, described receiving unit 61, it may also be used for receive described terminal to report described terminal work as Front broadcast state information, and the currently playing shape of described terminal is known according to described current play status information State.
Further, based on the embodiment of the present invention three identical inventive concept, the embodiment of the present invention five also carries Supply a kind of correcting controller, the correlation being embodied as can be found in said method embodiment three of this equipment is retouched State, repeat no more in place of repetition, its structural representation is as shown in fig. 7, this equipment mainly may include：
Receiving unit 71, can be used for receiving the time stamp correction instruction that centre point distribution management platform issues, institute State and carry terminal in time stamp correction instruction when determining that RTP multicast no flows, finally received by multicast channel The timestamp of RTP packet arriving and numbering；
Processing unit 72, can be used for according to described time stamp correction instruction, by the time of described RTP packet Stamp and numbering are calibrated to HLS fast forwarding and fast rewinding index, comprise the HLS time in described HLS fast forwarding and fast rewinding index Stamp and the corresponding relation of burst and burst byte offsets；
Transmitting element 73, can be used for fast to the distribution management platform described HLS F.F. of transmission of described centre point Move back index, to be indexed to institute from the distribution of described centre point and management platform according to described HLS fast forwarding and fast rewinding State terminal and issue HLS unicast flow data, realized according to the HLS unicast flow data receiving by described terminal The broadcasting of HLS unicast stream.
Further, based on the embodiment of the present invention one and three identical inventive concepts, the embodiment of the present invention five Additionally provide a kind of video mixed seeding realizes system, and being embodied as of this system can be found in said method embodiment Associated description in one and three, repeats no more in place of repetition, and its structural representation is as shown in figure 8, this video The system of realizing of mixed seeding mainly may include：
Terminal 81, can be used for, when determining that RTP multicast no flows, exiting multicast channel and recording by multicast The timestamp of RTP packet and numbering that passage finally receives, and, according to preset unicast address to Centre point distribution management platform 82 sends unicast playing request, carries in described unicast playing request State timestamp and the numbering of RTP packet, and, receive described centre point and distribute management platform 82 The HLS unicast flow data issuing according to HLS fast forwarding and fast rewinding index, and according to the HLS unicast fluxion receiving Factually show the broadcasting of HLS unicast stream；
Described centre point distributes management platform 82, can be used for receiving the unicast broadcasting that described terminal 81 sends Request, and time stamp correction instruction is issued to correcting controller 83 according to the described unicast playing request receiving, Carry in described time stamp correction instruction that terminal 81 reports finally received by multicast channel described in The timestamp of RTP packet and numbering, and, receive the described HLS that described correcting controller 83 sends Fast forwarding and fast rewinding indexes, and is indexed according to described HLS fast forwarding and fast rewinding and issue HLS unicast stream to described terminal 81 Data；
Described correcting controller 83, can be used for receiving when described centre point distributes that management platform 82 issues Stamp correction instruction, and according to described time stamp correction instruction, by the timestamp of described RTP packet and numbering school Standard is described HLS fast forwarding and fast rewinding index, comprises HLS timestamp and divides in described HLS fast forwarding and fast rewinding index Piece and the corresponding relation of burst byte offsets, and, distribute management platform 82 to described centre point Send described HLS fast forwarding and fast rewinding index.
That is, in technical scheme described in the embodiment of the present invention, terminal when determining that RTP multicast no flows, The HLS issuing can be indexed based on HLS fast forwarding and fast rewinding according to the centre point distribution management platform receiving mono- Broadcast the broadcasting that flow data realizes HLS unicast stream, described HLS fast forwarding and fast rewinding index is correcting controller to end Obtained by holding the timestamp of RTP packet finally receiving by multicast channel to be calibrated with numbering, Wherein comprise the corresponding relation of HLS timestamp and burst and burst byte offsets, it is achieved thereby that RTP To the conversion of HLS unicast when multicast no flows, thus with respect to existing based on RTP transmission technology realize Multicast no circulates for the scheme changed, and can realize code check is cut according to the practical situation of end user bandwidth Change, be that user provides good video playback experience on the network of no guarantee.
It will be understood by those skilled in the art that embodiments of the invention can be provided as method, device (equipment), Or computer program.Therefore, the present invention can using complete hardware embodiment, complete software embodiment, Or combine the form of the embodiment of software and hardware aspect.And, the present invention can using one or more its In include computer-usable storage medium (the including but not limited to disk storage of computer usable program code Device, CD-ROM, optical memory etc.) the upper computer program implemented form.
The present invention is with reference to method according to embodiments of the present invention, device (equipment) and computer program Flow chart and/or block diagram describing.It should be understood that can by computer program instructions flowchart and/or Each flow process in block diagram and/or the flow process in square frame and flow chart and/or block diagram and/or square frame In conjunction with.These computer program instructions can be provided to general purpose computer, special-purpose computer, Embedded Processor Or the processor of other programmable data processing device with produce a machine so that by computer or other The instruction of the computing device of programmable data processing device produce for realizing in one flow process of flow chart or The device of the function of specifying in multiple flow processs and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and computer or other programmable datas can be guided to process and set So that being stored in this computer-readable memory in the standby computer-readable memory working in a specific way Instruction produce and include the manufacture of command device, the realization of this command device is in one flow process or multiple of flow chart The function of specifying in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes Obtain and series of operation steps is executed on computer or other programmable devices to produce computer implemented place Reason, thus the instruction of execution is provided for realizing in flow chart one on computer or other programmable devices The step of the function of specifying in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know base This creative concept, then can make other change and modification to these embodiments.So, appended right will Ask and be intended to be construed to including preferred embodiment and fall into being had altered and changing of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this to the present invention Bright spirit and scope.So, if the present invention these modification and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprise these changes and modification.

Claims (15)

1. a kind of implementation method of video mixed seeding is it is characterised in that include：
Terminal, when determining that realtime transmission protocol RTP multicast no flows, exits multicast channel and records by multicast The timestamp of RTP packet and numbering that passage finally receives；
Unicast playing request, described list are sent to centre point distribution management platform according to preset unicast address Broadcast the timestamp carrying described RTP packet in playing request and numbering, to be distributed by described centre point Management platform issues time stamp correction instruction according to described unicast playing request to correcting controller, by described correction Controller, according to described time stamp correction instruction, the timestamp of described RTP packet and numbering is calibrated to super literary composition This live TV stream HLS fast forwarding and fast rewinding indexes and is sent to described centre point distribution management platform, described HLS The corresponding relation of HLS timestamp and burst and burst byte offsets is comprised in fast forwarding and fast rewinding index；
Receive described centre point and distribute the HLS that management platform issues according to described HLS fast forwarding and fast rewinding index Unicast flow data, and the broadcasting of HLS unicast stream is realized according to the HLS unicast flow data receiving.
2. the method for claim 1 is it is characterised in that receive described centre point distribution management The HLS unicast flow data that platform issues according to described HLS fast forwarding and fast rewinding index, and according to the HLS receiving Unicast flow data realizes the broadcasting of HLS unicast stream, including：
Receive described centre point and distribute the main rope that management platform sends according to described HLS fast forwarding and fast rewinding index Quotation part, and according to the described master index file receiving to described centre point distribution management platform request phase Code rate corresponding subindex file；
Receive described centre point and distribute the corresponding subindex file of described phase code rate that management platform sends, And patted to described centre point dispensing tube according to the corresponding subindex file of described phase code rate receiving Platform asks the slicing files of corresponding first numbering of described phase code rate；
Receive described centre point and distribute corresponding first numbering of described phase code rate that management platform sends Slicing files are simultaneously play；
Ask the slicing files of the corresponding next numbering of described phase code rate successively and play, until being played to Last slicing files of described phase code rate or receive and corresponding stop viewing instruction.
3. the method for claim 1 is it is characterised in that methods described also includes：
Determine itself current play status, and described current play status are informed described centre point dispensing tube Platform.
4. a kind of implementation method of video mixed seeding is it is characterised in that include：
Centre point distributes the unicast playing request that management platform receiving terminal sends, described unicast playing request For described terminal when determining that realtime transmission protocol RTP multicast no flows, according to preset unicast address to described Centre point distributes what management platform sent, and, carry described terminal in described unicast playing request and pass through The timestamp of RTP packet and numbering that multicast channel finally receives；
Described unicast playing request according to receiving issues time stamp correction instruction to correcting controller, when described The described RTP packet finally receiving by multicast channel of terminal to report is carried in stamp correction instruction Timestamp and numbering, with by described correcting controller according to described time stamp correction instruction, by described RTP The timestamp of packet and numbering are calibrated to hypertext live TV stream HLS fast forwarding and fast rewinding index, and described HLS is fast Enter the corresponding relation comprising HLS timestamp and burst and burst byte offsets in rewind index；
Receive the described HLS fast forwarding and fast rewinding index that described correcting controller sends, and fast according to described HLS Enter rewind and index and issue HLS unicast flow data to described terminal, with by described terminal according to the institute receiving State the broadcasting that HLS unicast flow data realizes HLS unicast stream.
5. method as claimed in claim 4 is it is characterised in that index according to described HLS fast forwarding and fast rewinding Issue HLS unicast flow data to described terminal, with by described terminal according to the described HLS unicast receiving Flow data realizes the broadcasting of HLS unicast stream, including：
Indexed according to described HLS fast forwarding and fast rewinding and issue master index file to described terminal；
Receive described terminal according to the described master index file transmission receiving for asking phase code rate pair First request of the subindex file answered, and ask to issue described corresponding code to described terminal according to described first Rate corresponding subindex file；
Receive described terminal according to being used for that the corresponding subindex file of described phase code rate receiving sends Ask the second request of the slicing files of corresponding first numbering of described phase code rate, and according to described second Ask to issue the slicing files of corresponding first numbering of described phase code rate to described terminal, with by described terminal Play the slicing files of corresponding first numbering of the described phase code rate receiving；
Receive that described terminal sends successively for ask the corresponding next numbering of described phase code rate point The request of piece file, and the corresponding next volume of described phase code rate is issued to described terminal according to respective request Number slicing files, until under distribute last slicing files or no longer receive the use that described terminal sends Request in the slicing files asking the corresponding next numbering of described phase code rate.
6. method as claimed in claim 4 is it is characterised in that methods described also includes：
Receive the current play status information of the described terminal of described terminal to report, and according to described currently playing Status information knows the current play status of described terminal.
7. a kind of implementation method of video mixed seeding is it is characterised in that include：
Correcting controller receives centre point and distributes the time stamp correction instruction that management platform issues, described time stamp school Terminal is carried when determining that realtime transmission protocol RTP multicast no flows in positive order, last by multicast channel The timestamp of RTP packet receiving and numbering；
According to described time stamp correction instruction, the timestamp of described RTP packet and numbering are calibrated to hypertext Live TV stream HLS fast forwarding and fast rewinding indexes, and comprises HLS timestamp and burst in described HLS fast forwarding and fast rewinding index And the corresponding relation of burst byte offsets；
Send described HLS fast forwarding and fast rewinding index to described centre point distribution management platform, with by described Heart content distribution and management platform index according to described HLS fast forwarding and fast rewinding and issue HLS unicast to described terminal Flow data, is realized the broadcasting of HLS unicast stream by described terminal according to the HLS unicast flow data receiving.
8. a kind of terminal is it is characterised in that include：
Recording unit, for when determining that realtime transmission protocol RTP multicast no flows, exiting multicast channel and remembering Record the timestamp of RTP packet finally receiving by multicast channel and numbering；
Transmitting element, broadcasts for sending unicast according to preset unicast address to centre point distribution management platform Put request, carry timestamp and the numbering of described RTP packet in described unicast playing request, with by institute State centre point distribution management platform and time stamp correction is issued to correcting controller according to described unicast playing request Instruction, by described correcting controller according to described time stamp correction instruction, by the timestamp of described RTP packet It is calibrated to hypertext live TV stream HLS fast forwarding and fast rewinding with numbering to index and be sent to described centre point dispensing tube Platform, comprises HLS timestamp and burst and burst byte offset in described HLS fast forwarding and fast rewinding index The corresponding relation of amount；
Processing unit, for receiving described centre point distribution management platform according to described HLS fast forwarding and fast rewinding Index the HLS unicast flow data issuing, and HLS unicast is realized according to the HLS unicast flow data receiving The broadcasting of stream.
9. terminal as claimed in claim 8 it is characterised in that
Described processing unit, specifically for receiving described centre point distribution management platform according to described HLS The master index file that fast forwarding and fast rewinding index sends, and according to the described master index file receiving to described center Content distribution management platform asks phase code rate corresponding subindex file；And,
Receive described centre point and distribute the corresponding subindex file of described phase code rate that management platform sends, And patted to described centre point dispensing tube according to the corresponding subindex file of described phase code rate receiving Platform asks the slicing files of corresponding first numbering of described phase code rate；And,
Receive described centre point and distribute corresponding first numbering of described phase code rate that management platform sends Slicing files are simultaneously play；And,
Ask the slicing files of the corresponding next numbering of described phase code rate successively and play, until being played to Last slicing files of described phase code rate or receive and corresponding stop viewing instruction.
10. terminal as claimed in claim 8 it is characterised in that
Described transmitting element, is additionally operable to determine itself current play status, and described current play status are accused Know described centre point distribution management platform.
A kind of 11. centre point distribution management platforms are it is characterised in that include：
Receiving unit, the unicast playing request sending for receiving terminal, described unicast playing request is described Terminal when determining that realtime transmission protocol RTP multicast no flows, according to preset unicast address to intracardiac in described Hold what distribution management platform sent, and, carry described terminal in described unicast playing request and led to by multicast The timestamp of RTP packet and numbering that road finally receives；
Transmitting element, for issuing time stamp school according to the described unicast playing request receiving to correcting controller Positive order, carries the institute finally receiving by multicast channel of terminal to report in described time stamp correction instruction State timestamp and the numbering of RTP packet, with by described correcting controller according to described time stamp correction instruction, The timestamp of described RTP packet and numbering are calibrated to hypertext live TV stream HLS fast forwarding and fast rewinding index, The corresponding of HLS timestamp and burst and burst byte offsets is comprised in described HLS fast forwarding and fast rewinding index Relation；
Processing unit, for receiving the described HLS fast forwarding and fast rewinding index that described correcting controller sends, and Indexed according to described HLS fast forwarding and fast rewinding and issue HLS unicast flow data to described terminal, with by described terminal Described HLS unicast flow data according to receiving realizes the broadcasting of HLS unicast stream.
12. centre points as claimed in claim 11 distribution management platforms it is characterised in that
Described processing unit, issues master specifically for indexing according to described HLS fast forwarding and fast rewinding to described terminal Index file；And,
Receive described terminal according to the described master index file transmission receiving for asking phase code rate pair First request of the subindex file answered, and ask to issue described corresponding code to described terminal according to described first Rate corresponding subindex file；And,
Receive described terminal according to being used for that the corresponding subindex file of described phase code rate receiving sends Ask the second request of the slicing files of corresponding first numbering of described phase code rate, and according to described second Ask to issue the slicing files of corresponding first numbering of described phase code rate to described terminal, with by described terminal Play the slicing files of corresponding first numbering of the described phase code rate receiving；And,
Receive that described terminal sends successively for ask the corresponding next numbering of described phase code rate point The request of piece file, and the corresponding next volume of described phase code rate is issued to described terminal according to respective request Number slicing files, until under distribute last slicing files or no longer receive the use that described terminal sends Request in the slicing files asking the corresponding next numbering of described phase code rate.
13. centre points as claimed in claim 11 distribution management platforms it is characterised in that
Described receiving unit, is additionally operable to receive the current play status letter of the described terminal of described terminal to report Breath, and the current play status of described terminal are known according to described current play status information.
A kind of 14. correcting controllers are it is characterised in that include：
Receiving unit, distributes, for receiving centre point, the time stamp correction instruction that management platform issues, when described Terminal is carried when determining that realtime transmission protocol RTP multicast no flows, by multicast channel in stamp correction instruction The timestamp of RTP packet finally receiving and numbering；
Processing unit, for according to described time stamp correction instruction, by the timestamp of described RTP packet and volume Number it is calibrated to hypertext live TV stream HLS fast forwarding and fast rewinding index, in described HLS fast forwarding and fast rewinding index, comprise HLS Timestamp and the corresponding relation of burst and burst byte offsets；
Transmitting element, for sending described HLS fast forwarding and fast rewinding rope to described centre point distribution management platform Draw, to be indexed to described end from the distribution of described centre point and management platform according to described HLS fast forwarding and fast rewinding End issues HLS unicast flow data, realizes HLS by described terminal according to the HLS unicast flow data receiving The broadcasting of unicast stream.
A kind of 15. video mixed seeding realize system it is characterised in that include：
Terminal, for when determining that realtime transmission protocol RTP multicast no flows, exiting multicast channel and recording logical Cross the timestamp of RTP packet and the numbering that multicast channel finally receives, and, according to preset unicast Address sends unicast playing request to centre point distribution management platform, carries in described unicast playing request The timestamp of described RTP packet and numbering, and, receive described centre point distribution management platform according to The HLS unicast flow data that hypertext live TV stream HLS fast forwarding and fast rewinding index issues, and according to the HLS receiving Unicast flow data realizes the broadcasting of HLS unicast stream；
Described centre point distributes management platform, for receiving the unicast playing request that described terminal sends, and Time stamp correction instruction, described time stamp school are issued to correcting controller according to the described unicast playing request receiving Carry in positive order terminal to report the described RTP packet being finally received by multicast channel when Between stamp and numbering, and, receive the described HLS fast forwarding and fast rewinding index that described correcting controller sends, and Indexed according to described HLS fast forwarding and fast rewinding and issue HLS unicast flow data to described terminal；
Described correcting controller, refers to for receiving the time stamp correction that described centre point distribution management platform issues Order, and according to described time stamp correction instruction, the timestamp of described RTP packet and numbering are calibrated to described HLS fast forwarding and fast rewinding indexes, and comprises HLS timestamp and burst and divide in described HLS fast forwarding and fast rewinding index The corresponding relation of piece byte offsets, and, send described HLS to described centre point distribution management platform Fast forwarding and fast rewinding indexes.
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