CN107666613A - Method for synchronizing time, server and the system recorded for multiple spot - Google Patents
Method for synchronizing time, server and the system recorded for multiple spot Download PDFInfo
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- CN107666613A CN107666613A CN201610597868.3A CN201610597868A CN107666613A CN 107666613 A CN107666613 A CN 107666613A CN 201610597868 A CN201610597868 A CN 201610597868A CN 107666613 A CN107666613 A CN 107666613A
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- record processor
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
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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
- H04N21/64—Addressing
- H04N21/6405—Multicasting
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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]
- H04N21/80—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
- H04N21/8455—Structuring of content, e.g. decomposing content into time segments involving pointers to the content, e.g. pointers to the I-frames of the video stream
-
- 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)
- Television Signal Processing For Recording (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a kind of method for synchronizing time, Video Record Processor and content distributing network recorded for multiple spot, it is related to communication technical field, method therein includes：Video Record Processor receives the RTP packets of head-end system transmission；Video Record Processor obtains the HLS slice informations that RTP packets carry；The load of RTP packets is recorded as the media data of HLS protocol form according to HLS slice informations by Video Record Processor.Method, Video Record Processor and the content distributing network of the present invention, it can ensure that different Video Record Processor records the uniformity of generation data, realize the uniformity of different Video Record Processor generation data, can+time-shift service live by RTP multicast+HLS unicast bearers, network overhead can be saved, reduce joint behavior resource consumption again, improve user's viewing experience.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of method for synchronizing time recorded for multiple spot, recording clothes
Business device and content distributing network.
Background technology
Multicast transmission it is extensive it is live in have an obvious advantage for saving backbone bandwidth, the carrying of generally use multicast mode is straight
Broadcast business.At present, net cast typically uses RTSP (Real Time Streaming Protocol, real time streaming transport protocol)
Agreement, in order to system realize it is convenient, it is related review, time-shifted service can also use RTSP protocol realizations.But RTSP is to network rings
Border requires high, the problems such as mosaic, interim card easily occurs, and in this regard, HLS (HTTP Live Streaming) agreement can be compared with
Various network environments are adapted to well, lift play quality, therefore live related service is carried using RTP multicasts jointly with HLS unicasts
Both advantages can be played.
During multicast is recorded as HLS indexes and slicing files, records point and be arranged on CDN (Content
Delivery Network, content distributing network) multiple edge service nodes.Have because each nodes of CDN receive multicast content
Time difference, to ensure the uniformity of each CDN node Content Transformation, consistent Consumer's Experience is obtained, it is necessary to synchronous each node
Recording time.Also, HLS needs the absolute time of given content burst could be at end when recording when generating time shift index file
Time shift effect is realized at end, but prior art need by video decoding could obtain corresponding to the time, decoding will largely consume CDN sides
The performance of edge node.
The content of the invention
In view of this, the invention solves a technical problem be to provide it is a kind of for multiple spot record time synchronized side
Method, Video Record Processor and content distributing network.
According to an aspect of the present invention, there is provided a kind of method for synchronizing time recorded for multiple spot, including：Record service
Device receives the RTP packets of head-end system transmission；The Video Record Processor obtains the HLS sections that the RTP packets carry
Information；The load of the RTP packets is recorded as HLS protocol form by the Video Record Processor according to the HLS slice informations
Media data.
Alternatively, the Video Record Processor receives the RTP packets that head-end system is sent and included：The Video Record Processor
Add RTP multicast address；The Video Record Processor receives the RTP multicast packets that head-end system is sent, wherein, the head end system
System inserts the HLS slice informations in the RTP multicast packets.
Alternatively, the Video Record Processor obtains the HLS slice informations that the RTP packets carry and included：The recording
Server extracts the header of the RTP packets；The Video Record Processor parses the mark HLS sections from the header
The extended field data of information, obtain the HLS slice informations；Wherein, the HLS slice informations include：Between the time of burst
Every, the sequence number of burst and the reproduction time of burst.
Alternatively, the extended field includes：Frame interval, hls media sequence and hls
program date time；Wherein, frame interval fields are used for the time interval for identifying burst, hls media
Sequence fields are used to identify the slicing sequence number where the video data in the load of current RTP packet, hls
The absolute broadcasting that the burst that program date time fields are used for where identifying the load of current RTP packet commences play out
Date and time.
Alternatively, the Video Record Processor records the payload content of the RTP packets according to the HLS slice informations
Media data for HLS protocol form includes：The Video Record Processor is according to the HLS slice informations by the RTP packets
Payload content record into HLS protocol media formats slicing files；The Video Record Processor generation and the slicing files phase
Corresponding index file, there is provided the absolute of interval duration and the frame of each burst first broadcasting of burst in the index file
Date and time.
Alternatively, the index file is M3U8 files, wherein, when the interval of burst is provided with the index file
The absolute date and time that long and each frame of burst first plays include：The Video Record Processor is every in the index file
EXTINF and EXT-X-PROGRAM-DATE-TIME labels are added before individual slicing files description information；Wherein, the EXTINF marks
The interval duration for identifying each burst is signed, the EXT-X-PROGRAM-DATE-TIME labels are used to identify each burst
The absolute date and time of broadcasting.
Alternatively, when terminal from it is live be switched to time shifting broadcasting pattern when, obtain the M3U8 files；The terminal is from institute
State and the numerical value that EXTINF labels and EXT-X-PROGRAM-DATE-TIME labels are set is extracted in M3U8 files；The terminal base
Slicing files information corresponding with time shifting broadcasting is determined in the numerical value；The terminal sends time shift to the Video Record Processor and broadcast
Request is put, wherein, the time shifting broadcasting request carries slicing files information corresponding with time shifting broadcasting.
According to another aspect of the present invention, there is provided a kind of Video Record Processor, including：Media data reception module, for connecing
Receive the RTP packets that head-end system is sent；Slice information acquisition module, the HLS sections carried for obtaining the RTP packets
Information；Media data records module, for the Video Record Processor according to the HLS slice informations by the RTP packets
Load is recorded as the media data of HLS protocol form.
Alternatively, the media data reception module, it is additionally operable to add RTP multicast address, receives what head-end system was sent
RTP multicast packets, wherein, the head-end system inserts the HLS slice informations in the RTP multicast packets.
Alternatively, the slice information acquisition module, it is additionally operable to extract the header of the RTP packets, from the header
In parse the extended field data for identifying the HLS slice informations, obtain the HLS slice informations；Wherein, the HLS is cut
Piece information includes：The reproduction time of the time interval of burst, the sequence number of burst and burst.
Alternatively, the media data records module, including：Fragment recording unit, for according to the HLS slice informations
The payload content of the RTP packets is recorded into the slicing files into HLS protocol media formats；Generation unit is indexed, for giving birth to
Into the index file corresponding with the slicing files, the interval duration of burst and each burst are set in the index file
The absolute date and time of broadcasting.
Alternatively, the index generation unit, it is additionally operable to first slicing files description letter in the index file
EXTINF and EXT-X-PROGRAM-DATE-TIME labels are added before breath；Wherein, the EXTINF labels are used to identify each point
The interval duration of piece, the EXT-X-PROGRAM-DATE-TIME labels be used to identifying the absolute date that each burst plays and
Time.
According to another aspect of the invention, there is provided a kind of content distributing network, including：Video Record Processor as described above.
The method for synchronizing time, Video Record Processor and the content distributing network that are used for multiple spot and record of the present invention, according to RTP numbers
The recording of HLS indexes and slicing files is carried out according to the HLS slice informations in bag, can ensure that different Video Record Processor records life
Into the uniformity of data, can+time-shift service live by RTP multicast+HLS unicast bearers, improve user's viewing experience.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only
Some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet according to one embodiment for being used for the method for synchronizing time that multiple spot is recorded of the present invention；
Fig. 2 is the module diagram according to one embodiment of the Video Record Processor of the present invention；
Fig. 3 is that the module that module is recorded according to the media data of one embodiment of the Video Record Processor of the present invention is illustrated
Figure.
Embodiment
The present invention is described more fully with reference to the accompanying drawings, wherein illustrating the exemplary embodiment of the present invention.Under
The accompanying drawing that face will be combined in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, and shows
So, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the reality in the present invention
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is all belonged to
In the scope of protection of the invention.Many descriptions are carried out to technical scheme with reference to each figure and embodiment.
Fig. 1 is the schematic flow sheet according to one embodiment for being used for the method for synchronizing time that multiple spot is recorded of the invention,
As shown in Figure 1：
Step 101, Video Record Processor receives the RTP packets of head-end system transmission.
Video Record Processor is the server for recording HLS indexes and slicing files, and Video Record Processor can be arranged on CDN
In, as recording node.
Step 102, Video Record Processor obtains the HLS slice informations that RTP packets carry.
Step 103, the load of RTP packets is recorded as HLS protocol form by Video Record Processor according to HLS slice informations
Media data.
The method for synchronizing time for being used for multiple spot and recording in above-described embodiment, the HLS slice informations in RTP packets
The recording of HLS indexes and slicing files is carried out, can ensure that different Video Record Processor records the uniformity of generation data.
HLS protocol is developed by Apple Inc., is that media content is sliced into some small bursts, and group by face on the http protocol
Knit corresponding M3U8 (burst index file) file.Live broadcast service realized by #EXT-X-MEDIA-SEQUENCE labels, often
The burst of individual renewal can all distribute incremental sequence number, be also according to #EXT-X-MEDIA-SEQUENCE labels during terminal plays
To determine next burst to be played.
The live head-end system of RTP multicasts, the RTP headers of RTP multicasts are extended, add HLS slice informations, will
RTP headers and RTP load contents are sent to Video Record Processor in the form of RTP packets.Video Record Processor is with adding RTP multicasts
Location, receives the RTP multicast packets that head-end system is sent, and HLS slice information of the Video Record Processor in RTP packets is carried out
Section and storage, control generated time shift index and slicing files that there is global coherency in CDN by HLS slice informations.
RTP bag datas are extended by head-end system, HLS slice informations are carried into each record by RTP bags takes
Business device, Video Record Processor extract the header of RTP packets, and the extended field number of mark HLS slice informations is parsed from header
According to acquisition HLS slice informations.HLS slice informations can carry much information, for example, HLS slice informations include：Burst when
Between interval, the reproduction time etc. of the sequence number of burst and burst.
Head-end system is carried to each Video Record Processor, growth data using HLS slice informations as growth data by RTP bags
Video playback time corresponding to time interval including HLS bursts, burst order and burst etc..Video Record Processor is by RTP
Load contents in packet are recorded into HLS protocol media formats and stored.Growth data in RTP bags is incorporated into mark
In the standard extension head field of quasi- Real-time Transport Protocol, for not doing the receiving device recorded, such as set top box, it is not necessary to identify these letters
Breath, broadcasting will not also be had any impact.
The method for synchronizing time for being used for multiple spot and recording in above-described embodiment, support H.264, the different coding lattice such as H.265
Formula, the HLS slice informations in RTP packets carry out the recording of HLS indexes and slicing files, avoid recording node from needing to disappear
Consumption energy resource carries out video decoding to obtain consistent burst temporal information so that straight using RTP multicast+HLS unicast bearers
Broadcast+time-shift service is possibly realized, network overhead is saved, improves viewing experience of the user in the bad environment of network again.
In one embodiment, extended field includes：Frame interval, hls media sequence and hls
program date time.Frame interval fields are used for the time interval for identifying burst, that is, represent current RTP load
In frame reproduction time with respect to previous frame time interval, for the playing duration of the burst.Hls media sequence words
Section is used to identify the slicing sequence number where the video data in the load of current RTP packet.hls program date
The absolute broadcasting date and time that the burst that time fields are used for where identifying the load of current RTP packet commences play out, i.e.,
The absolute broadcasting date and time of first sample frame in HLS media slicings where expression current RTP load.
Video Record Processor records the payload content of RTP packets into HLS protocol media formats according to HLS slice informations
Slicing files.Video Record Processor generates the index file corresponding with slicing files, is provided with indexed file between burst
Every the absolute date and time that duration and the frame of each burst first play.
Index file can be M3U8 files, be played in indexed file there is provided the interval duration and burst of burst exhausted
Date and time is included：Before first slicing files description information in Video Record Processor indexed file add EXTINF and
EXT-X-PROGRAM-DATE-TIME labels；EXTINF labels are used for the interval duration for identifying each burst, EXT-X-
PROGRAM-DATE-TIME labels are used to identify absolute date and time that each burst plays.
For example, Video Record Processor is that burst sets definitely broadcasting using Tag EXT-X-PROGRAM-DATE-TIME labels
Time, the M3U8 files that multicast turns the recording of unicast are carried out, the content of M3U8 files is as follows：
#EXTM3U
#EXT-X-VERSION:4
#EXT-X-TARGETDURATION:10
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-PROGRAM-DATE-TIME:2015-07-08T19:00:00.000+08:00
#EXTINF:10,
1.ts
#EXT-X-PROGRAM-DATE-TIME:2015-07-08T19:00:10.000+08:00
#EXTINF:10,
2.ts
#EXT-X-PROGRAM-DATE-TIME:2015-07-08T19:00:20.000+08:00
#EXTINF:10,
3.ts
#EXT-X-PROGRAM-DATE-TIME:2015-07-08T19:00:30.000+08:00
#EXTINF:10,
4.ts
#EXT-X-PROGRAM-DATE-TIME:2015-07-08T19:00:40.000+08:00
#EXTINF:10,
5.ts
From the foregoing, it will be observed that having added EXT-X-PROGRAM-DATE-TIME before first slicing files 1.ts, show burst
The absolute time that 1.ts is commenced play out is 19:00:00,2.ts absolute reproduction time is exactly 19:00:10, by that analogy, according to
EXT-X-PROGRAM-DATE-TIME labels, it is able to know that the absolute broadcasting date and time of each TS burst.Correspondingly,
The time span of the sustainable broadcasting of the burst is also able to know that from EXTINF labels.
When terminal from it is live be switched to time shifting broadcasting pattern when, obtain M3U8 files.Terminal is extracted from M3U8 files
The numerical value that EXTINF labels and EXT-X-PROGRAM-DATE-TIME labels are set.Terminal is based on numerical value determination and time shifting broadcasting
Corresponding slicing files information.For example, terminal need play 1 minute before video, i.e., 19：01 point of video, from M3U8 files
Middle extraction EXTINF value is 10 seconds, and the value of EXT-X-PROGRAM-DATE-TIME labels is 19：00, then terminal determine and when
It is the 6th burst in M3U8 files to move slicing files corresponding to playing, and obtains the information of the 6th burst, such as sequence number.
Terminal sends time shifting broadcasting request to Video Record Processor, and time shifting broadcasting request carries corresponding with time shifting broadcasting point
Piece fileinfo, terminal receive slicing files corresponding with time shifting broadcasting and played out as time-shifted contents.Terminal is from time shift
When switchback is live, stop the request of time-shifted contents, empty time-shifted contents, terminal adds the multicast group of corresponding direct broadcast band, received
RTP multicast packets, and commence play out.
The method for synchronizing time for being used for multiple spot and recording in above-described embodiment, different Video Record Processor generation numbers can be realized
According to uniformity, can+time-shift service live by RTP multicast+HLS unicast bearers, network overhead can be saved, and can be lifted
Viewing experience of the user in the bad environment of network.
Include as shown in Fig. 2 the present invention provides a kind of Video Record Processor 20：Media data reception module 21, slice information
Acquisition module 22 and media data record module 23.Media data reception module 21 receives the RTP packets that head-end system is sent.
Slice information acquisition module 22 obtains the HLS slice informations that RTP packets carry.Media data records the Video Record Processor of module 23
The load of RTP packets is recorded as to the media data of HLS protocol form according to HLS slice informations.
Media data reception module 21 adds RTP multicast address, receives the RTP multicast packets that head-end system is sent.Cut
Piece data obtaining module 22 extracts the header of RTP packets, and the extended field number of mark HLS slice informations is parsed from header
According to acquisition HLS slice informations.Wherein, HLS slice informations include：The time interval of burst, the sequence number of burst and burst are broadcast
Put time etc..
Include as shown in figure 3, media data records module 23：Fragment recording unit 231 and index generation unit 232.Point
Piece recording elements 231 record the payload content of RTP packets according to HLS slice informations the burst into HLS protocol media formats
File.Index generation unit 232 and generate the index file corresponding with slicing files, the interval of burst is set in indexed file
The absolute date and time that duration and each burst play.
EXTINF and EXT-X- is added before indexing each slicing files description information in the indexed file of generation unit 232
PROGRAM-DATE-TIME labels.EXTINF labels are used for the interval duration for identifying each burst, EXT-X-PROGRAM-
DATE-TIME labels are used to identify absolute date and time that first burst plays.
In one embodiment, the present invention provides a kind of content distributing network, including：As above Video Record Processor.
The method for synchronizing time, Video Record Processor and the content distributing network that are used for multiple spot and record in above-described embodiment, energy
The uniformity of different Video Record Processor generation data is enough realized, can+time shift industry live by RTP multicast+HLS unicast bearers
Business, can save network overhead, reduce joint behavior resource consumption again, improve user's viewing experience.
The method and system of the present invention may be achieved in many ways.For example, can by software, hardware, firmware or
Software, hardware, firmware any combinations come realize the present invention method and system.The said sequence of the step of for method is only
Order described in detail above is not limited in order to illustrate, the step of method of the invention, is especially said unless otherwise
It is bright.In addition, in certain embodiments, the present invention can be also embodied as recording program in the recording medium, these programs include
For realizing the machine readable instructions of the method according to the invention.Thus, the present invention also covering storage is used to perform according to this hair
The recording medium of the program of bright method.
Description of the invention provides for the sake of example and description, and is not exhaustively or by the present invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Select and retouch
State embodiment and be to more preferably illustrate the principle and practical application of the present invention, and one of ordinary skill in the art is managed
The present invention is solved so as to design the various embodiments with various modifications suitable for special-purpose.
Claims (13)
- A kind of 1. method for synchronizing time recorded for multiple spot, it is characterised in that including：Video Record Processor receives the RTP packets of head-end system transmission；The Video Record Processor obtains the HLS slice informations that the RTP packets carry；The load of the RTP packets is recorded as HLS protocol form by the Video Record Processor according to the HLS slice informations Media data.
- 2. the method as described in claim 1, it is characterised in that the Video Record Processor receives the RTP of head-end system transmission Packet includes：The Video Record Processor adds RTP multicast address；The Video Record Processor receives the RTP multicast packets that head-end system is sent；Wherein, the head-end system inserts the HLS slice informations in the RTP multicast packets.
- 3. method as claimed in claim 1 or 2, it is characterised in that the Video Record Processor obtains the RTP packets and carried HLS slice informations include：The Video Record Processor extracts the header of the RTP packets；The Video Record Processor parses the extended field data for identifying the HLS slice informations from the header, obtains institute State HLS slice informations；Wherein, the HLS slice informations include：The reproduction time of the time interval of burst, the sequence number of burst and burst.
- 4. method as claimed in claim 3, it is characterised in that：The extended field includes：Frame interval, hls media sequence and hls program date time；Wherein, frame interval fields are used for the time interval for identifying burst, and hls media sequence fields are used for Identify the slicing sequence number where the video data in the load of current RTP packet, hls program date time fields The absolute broadcasting date and time that the burst where load for identifying current RTP packet commences play out.
- 5. method as claimed in claim 3, it is characterised in that the Video Record Processor is according to the HLS slice informations by institute The payload content for stating RTP packets is recorded as the media data of HLS protocol form and included：The Video Record Processor records the payload content of the RTP packets into HLS protocol matchmaker according to the HLS slice informations The slicing files of physique formula；The Video Record Processor generates the index file corresponding with the slicing files, is provided with and divides in the index file The absolute date and time that the interval duration and the frame of each burst first of piece play.
- 6. method as claimed in claim 5, it is characterised in that the index file is M3U8 files, wherein, in the index The absolute date and time played in file there is provided the interval duration of burst and the frame of each burst first includes：EXTINF and EXT-X- is added before each slicing files description information of the Video Record Processor in the index file PROGRAM-DATE-TIME labels；Wherein, the EXTINF labels are used for the interval duration for identifying each burst, the EXT-X-PROGRAM-DATE-TIME Label is used to identify absolute date and time that each burst plays.
- 7. method as claimed in claim 6, it is characterised in that including：When terminal from it is live be switched to time shifting broadcasting pattern when, obtain the M3U8 files；The terminal extracts what EXTINF labels and EXT-X-PROGRAM-DATE-TIME labels were set from the M3U8 files Numerical value；The terminal is based on the numerical value and determines slicing files information corresponding with time shifting broadcasting；The terminal sends time shifting broadcasting request to the Video Record Processor, wherein, time shifting broadcasting request carry and when Move slicing files information corresponding to playing.
- A kind of 8. Video Record Processor, it is characterised in that including：Media data reception module, for receiving the RTP packets of head-end system transmission；Slice information acquisition module, the HLS slice informations carried for obtaining the RTP packets；Media data records module, for the Video Record Processor according to the HLS slice informations by the load of the RTP packets Lotus is recorded as the media data of HLS protocol form.
- 9. Video Record Processor as claimed in claim 8, it is characterised in that：The media data reception module, it is additionally operable to add RTP multicast address, receives the RTP multicast packets that head-end system is sent Bag；Wherein, the head-end system inserts the HLS slice informations in the RTP multicast packets.
- 10. Video Record Processor as claimed in claim 8, it is characterised in that：The slice information acquisition module, it is additionally operable to extract the header of the RTP packets, mark is parsed from the header The extended field data of the HLS slice informations, obtain the HLS slice informations；Wherein, the HLS slice informations include：The reproduction time of the time interval of burst, the sequence number of burst and burst.
- 11. Video Record Processor as claimed in claim 10, it is characterised in that：The media data records module, including：Fragment recording unit, assisted for being recorded the payload content of the RTP packets into HLS according to the HLS slice informations Discuss the slicing files of media formats；Generation unit is indexed, for generating the index file corresponding with the slicing files, is set in the index file The absolute date and time that the interval duration and the frame of each burst first of burst play.
- 12. Video Record Processor as claimed in claim 11, it is characterised in that：The index generation unit, EXTINF is added before being additionally operable to each slicing files description information in the index file With EXT-X-PROGRAM-DATE-TIME labels；Wherein, the EXTINF labels are used for the interval duration for identifying each burst, the EXT-X-PROGRAM-DATE-TIME Label is used to identify absolute date and time that each burst plays.
- A kind of 13. content distributing network, it is characterised in that including：Video Record Processor as described in any one of claim 8 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610597868.3A CN107666613A (en) | 2016-07-27 | 2016-07-27 | Method for synchronizing time, server and the system recorded for multiple spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610597868.3A CN107666613A (en) | 2016-07-27 | 2016-07-27 | Method for synchronizing time, server and the system recorded for multiple spot |
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| Publication Number | Publication Date |
|---|---|
| CN107666613A true CN107666613A (en) | 2018-02-06 |
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| CN111343511A (en) * | 2020-03-23 | 2020-06-26 | 烽火通信科技股份有限公司 | HLS live broadcast system and method realized through multicast |
| WO2020155295A1 (en) * | 2019-01-30 | 2020-08-06 | 网宿科技股份有限公司 | Live data processing method and system, and server |
| CN111726652A (en) * | 2020-07-03 | 2020-09-29 | 湖南快乐阳光互动娱乐传媒有限公司 | Audio live stream slicing method and device |
| CN112468839A (en) * | 2020-11-26 | 2021-03-09 | 上海哔哩哔哩科技有限公司 | Playback method, system, device and readable storage medium of live content |
| CN112714335A (en) * | 2019-10-24 | 2021-04-27 | 中兴通讯股份有限公司 | Live media stream recording method, system and computer readable storage medium |
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| CN110300308A (en) * | 2018-03-22 | 2019-10-01 | 贵州白山云科技股份有限公司 | A kind of Streaming Media playbacks method and device |
| CN111193942A (en) * | 2018-03-22 | 2020-05-22 | 贵州白山云科技股份有限公司 | Streaming media playback method and device |
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| WO2021078279A1 (en) * | 2019-10-24 | 2021-04-29 | 中兴通讯股份有限公司 | Live media stream recording method and system, and computer-readable storage medium |
| CN111343511A (en) * | 2020-03-23 | 2020-06-26 | 烽火通信科技股份有限公司 | HLS live broadcast system and method realized through multicast |
| CN111343511B (en) * | 2020-03-23 | 2022-04-08 | 武汉市烽视威科技有限公司 | HLS live broadcast system and method realized through multicast |
| CN111726652A (en) * | 2020-07-03 | 2020-09-29 | 湖南快乐阳光互动娱乐传媒有限公司 | Audio live stream slicing method and device |
| CN111726652B (en) * | 2020-07-03 | 2022-04-26 | 湖南快乐阳光互动娱乐传媒有限公司 | Audio live stream slicing method and device |
| CN112468839A (en) * | 2020-11-26 | 2021-03-09 | 上海哔哩哔哩科技有限公司 | Playback method, system, device and readable storage medium of live content |
| CN112468839B (en) * | 2020-11-26 | 2022-11-25 | 上海哔哩哔哩科技有限公司 | Playback method, system, device and readable storage medium of live content |
| CN116132751A (en) * | 2022-12-30 | 2023-05-16 | 郑州小鸟信息科技有限公司 | Method and system for synchronous playback based on web window scene |
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