CN109618208A - Live stream distributed slicing synchronization method and device - Google Patents
Live stream distributed slicing synchronization method and device Download PDFInfo
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- CN109618208A CN109618208A CN201811589813.3A CN201811589813A CN109618208A CN 109618208 A CN109618208 A CN 109618208A CN 201811589813 A CN201811589813 A CN 201811589813A CN 109618208 A CN109618208 A CN 109618208A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000009826 distribution Methods 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 230000009191 jumping Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 7
- 230000000153 supplemental effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
-
- 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
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
-
- 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
- H04N21/84—Generation or processing of descriptive data, e.g. content descriptors
-
- 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
-
- 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
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a method and a device for synchronizing distributed slices of a live stream, wherein SEI with slice information is inserted into a generation end or a central source station of video content: transmitting the slice information to an edge node along with other code streams of the video; and the edge node analyzes the code stream to obtain the quasi-information of the slicing information, and then slicing is completed. The invention effectively solves the problem of inconsistent synchronization of the whole network slices. And slicing at any edge node to ensure that the cut slice content and the slice file name are consistent. Switching the playing request from one edge to any other edge or source station is feasible, and the playing fluency is not influenced. The content is directly returned from the edge, so that the bandwidth of the returned source is effectively reduced, and meanwhile, the protection effect is also achieved on the central source station.
Description
Technical field
The present invention relates to net cast field, specially a kind of live stream distribution slice synchronous method and device.
Background technique
In existing live broadcast system, live streaming center source station generally require provide live stream it is hot standby, build source station cluster.Work as edge
When the source of returning, if exception occurs in top service, need to be switched to another top service in time, to guarantee continual live streaming
Service.HLS is a kind of live stream based on slice, will be from other one if edge is taken from some source station less than slice
A source station takes up, so to guarantee that the slice on multiple source stations is just the same, just can guarantee and can not play when switching source station
Existing Hua Ping, green screen, the abnormal phenomenon such as screen switching.
Existing slice synchronous method generally has following 3 kinds: it is assumed that there is A, tri- machines of B, C build center source station collection
Group:
1) A machine is sliced, other machines B, and C is not sliced, the slice on synchronous A machine to B, on two machines of C；
2) A, B, C machine are cut by certain Mechanism of Communication Synchronization (such as redis, database, message queue etc.) to synchronize
Piece content guarantees A, and B, C slice are consistent, and this mode is also difficult to accomplish fully synchronized；
3) RTMP ATC (absolute time) is sent by encoder, A, B, C machine are sliced according to absolute time, guarantee to cut
Piece is consistent, and this scheme requires encoder, and cannot distort timestamp in business CDN transmission process；
Above-mentioned 3 kinds of methods mainly solve the slice stationary problem in the cluster of center source station, can not reach across more business CDN
Synchronous to the whole network, edge goes back to source and still needs to take HLS slice and m3u8 file from center source station.
Summary of the invention
The technical problem to be solved by the present invention is in view of the shortcomings of the prior art, provide a kind of live stream distribution slice
It is inconsistent to solve the problems, such as that the whole network slice synchronizes for synchronous method and device.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of live stream distribution slice synchronization
Method, comprising the following steps:
1) it is inserted into the SEI with slice information at the generation end of video content or center source station, that is, the enhancement information supplemented:
2) SEI with slice information is transmitted together in company with other code streams of video and reaches fringe node；
3) fringe node parses code stream, after obtaining slice description, executes slice.
The specific implementation process of step 1) includes:
1) initialization slice size is a preset value, and slice duration is equal to zero, and Slice Sequence number is equal to 1；
2) code stream is read；
3) judge whether code stream terminates, if terminated, jump to step 12)；If being not finished, enter step 4)；
4) video frame is parsed, nal_unit_type, i.e. NAL unit type are obtained；
5) judge whether nal_unit_type is IDR, and IDR indicates instantaneous decoding refresh；If IDR is then entered step
6)；Otherwise, return step 2)；
6) slice duration is calculated, wherein slice duration calculation method are as follows: slice duration=current slice duration+current video
The difference of frame decoding time stamp and previous video frame decoding time stamp；
7) judge to be sliced whether duration is greater than the slice size of setting, if it is greater, then entering step 8), otherwise jump to step
It is rapid 11)；
8) SEI with slice description is generated；Wherein slice description is identified comprising Slice Sequence number and discrete state；
9) Slice Sequence number is incremented by, step-length 1, is sliced duration zero setting again；
10) SEI with slice description is inserted into before IDR；
11) code stream is continued to, step 2) is gone to；
12) terminate.
Executing the specific implementation process being sliced includes:
1) fringe node receives code stream；
2) initialization Slice Sequence number is zero, and discrete state is identified as very；
3) judge whether code stream terminates, if so, terminating, jump to step 16)；Otherwise, it enters step 4)；
4) video frame is parsed, nal_unit_type is obtained；
5) judge whether nal_unit_type is IDR, if so, entering step 6)；Otherwise, it enters step 7)；
6) judge whether slice creates, jump to step 12) if being sliced and being not present；Otherwise it enters step 14)；
7) judge whether nal_unit_type is SEI, if it is not, then jumping to step 14)；
8) SEI is parsed, judges whether SEI has slice description, if so, into 9)；Otherwise, it enters step 14)；
9) parsing slice description, obtains Slice Sequence number and discrete state identifies；
10) SEI with slice description is abandoned；
11) slice information write is judged whether there is, if so, closing the slice write；
12) name is sliced, wherein naming rule are as follows: stream name _ Slice Sequence number _ custom field suffix name；
13) the new slice of creation；
14) frame data of write-in are discarded if new slice does not create at this time to new slice write-in frame data；
15) code stream is continued to, step 3) is jumped to；
16) terminate.
Correspondingly, the present invention also provides a kind of live stream distributions to be sliced synchronizing device, comprising:
It is inserted into module, for generating the SEI of end or the insertion of center source station with slice description in video content；
Transmission module reaches fringe node for transmitting slice information together in company with other code streams of video；
Fringe node after obtaining the definite message or answer information of slice information, completes slice for parsing code stream.
Compared with prior art, the advantageous effect of present invention is that: the present invention efficiently solve the whole network slice synchronize
Inconsistent problem.It is sliced in any edge of table node, guarantees that the piece content cut out and piece filename are all consistent.It broadcasts
Put request be switched to from an edge in addition any one edge or source station be all it is feasible, do not influence playing fluency.From
The direct returned content in edge effectively reduces the bandwidth of Hui Yuan, while also playing protective effect to center source station.
Detailed description of the invention
Fig. 1 is basic flow chart of the present invention insertion with slice description SEI；
Fig. 2 is the basic flow chart that edge of the present invention or receiving end are sliced；
Fig. 3 is flow chart of the embodiment of the present invention.
Specific embodiment
Live video coding mainly uses two kinds of coded formats of H264 and H265, H264 specification at present
" ISO/IEC 14496-10:2014 " and H265 specification " ISO/IEC 23008-2:2015 " all describe SEI i.e.
Supplemental enhancement information (Supplemental Enhancement Information), it is provided, and volume is added into video code flow
The method of external information is one of the characteristic of H.264/H.265 video compression standard.SEI description type is in ISO/IEC 14496-
10:2014 " and " ISO/IEC 23008-2:2015 " in Annex D Supplemental enhancement
The description of information chapters and sections.As shown in Figure 1, (User data unregistered when SEI payloadType is equal to 5
SEI message) the customized description of some users can be added, so slice information (slice sequence can also be added in SEI in we
Row number).
Technology is accomplished by
Firstly, we insert in the generation end of video content or transmission process (center source station) SEI of the insertion with slice description
It is as follows to enter process, sees Fig. 1:
1) to announced stream dissection process in Video coding or in center source station, it is assumed that slice time size
Segment_size is 10 seconds；
2) initialization Slice Sequence sequence_number and slice duration segment_duration, sequence_
Number=1, segment_duration=0
3) whether detection stream terminates, if terminated, exits entire insertion slice process, jumps to step 16
4) video frame is parsed
5) present frame and former frame Decoding Time Stamp difference dts_delta=dts-pre_dts are calculated, wherein dts is to work as
Previous frame decoded time stamp, pre_dts are former frame decoded time stamp
6) slice duration segment_duration, segment_duration+=dts_delta are calculated, wherein requiring
Dts_delta is greater than zero
7) nal_unit_type of video frame is obtained, wherein nal_unit_type is in Rec.ITU-T H.264 (01/
2012) it is defined in Table 7-1 with Table 7-1 in Rec.ITU-T H.265v3 (04/2015) in
8) whether detection nal_unit_type is IDR, if not then jumping to step 3
9) whether detection current slice duration is greater than slice size segment_size, if it is less, jumping to step 3
10) whether detection dts_delta is greater than preset interval threshold values, if it is greater, then setting slice discrete state mark
Know
11) Slice Sequence sequence_number, sequence_number+=1 are calculated
12) SEI (sequence_number, discrete state mark) is generated
13) SEI is inserted into before IDR
14) it is inserted into after SEI, just contains slice information in current direct-broadcasting code stream, these slice informations are in company with video
Other code streams pass through network transmission together and reach fringe node；
15) step 3 is repeated to step 13；
16) terminate.
Marginal reception live stream parses video frame, after the definite message or answer information being sliced, executes slice.It is as follows to be sliced process,
See Fig. 2:
1) live stream is received
2) initialization slice call number segment_number and discrete state identify discontinuity, wherein
Segment_number=0, discontinuity=true
3) whether detection stream terminates, if terminated, exits whole flow process, jumps to step 18
4) parsing direct-broadcasting code stream then jumps to step 16 if it is audio frame
5) video frame is parsed
6) nal_unit_type is obtained, wherein nal_unit_type is in Rec.ITU-T H.264 (01/2012)
It is defined in Table 7-1 with Table 7-1 in Rec.ITU-T H.265v3 (04/2015)
7) whether detection nal_unit_type is IDR, if it is IDR and is first GOP, then jumps to step 12
8) whether detection nal_unit_type is SEI, if it is not, then jumping to step 16
9) SEI information is parsed, band slice description is detected whether, if it is not, then jumping to step 16
10) SEI with slice description is parsed, Slice Sequence sequece_number and discrete state are obtained
discontinuity
11) SEI with slice description is discarded
12) it is sliced naming rule: stream name _ Slice Sequence number _ custom field suffix name, such as: xxx_seqno_
Suffix.ts, wherein xxx indicates stream name, and seqno indicates that Slice Sequence sequence_number, suffix indicate customized
Field, suffix name can be ts, m4s etc.
13) detect whether there is the slice being currently written into, if it does not exist, then jumping to step 15
14) slice being currently written into is closed
15) the new slice of creation, such as JYKTMPP360_seqno_hls.ts, wherein JYKTMPP360 indicates stream name,
Seqno indicates that Slice Sequence sequence_number, hls indicate custom field, and suffix name is ts.
16) frame data are written in tangential section, do not create if be sliced at this time, abandon the frame data of write-in
17) step 3 is repeated to step 15
18) terminate
Edge plays the role of source station at this time, realizes the Hui Yuan of live stream, distribution, caching and slice.Spectators Xiang Bian
Edge requests HLS live stream, and edge directly returns to slice content.
The embodiment of the present invention realizes that process is as follows, sees Fig. 3:
1) selection processes announced live stream on the source station of center, is inserted into the SEI with slice description；
2) there is A in center source station, and tri- machines of B, C build cluster, do hot standby processing to live stream；
3) when any machine in receives live streaming plug-flow, code stream is parsed, every a slice size duration,
Next GOP starts SEI of the front position insertion with slice description, wherein slice description are as follows: " Slice Sequence number, discrete state
Mark "；Wherein Slice Sequence number, which is 64, a symbol integer, and discrete state mark is inserted in slice description if it is true,
If it is vacation, lack；GOP full name is Group of pictures, and Chinese is construed to picture group, and a GOP just refers to two
One group of continuous picture between IDR；
4) current live circulation is shifted onto other 2 machines；
5) center source station machine is not sliced, and only returns source access service as live stream；
6) player requests HLS live stream to edge；
7) edge returns source rtmp to center source station；
8) edge parses code stream, obtains the SEI content with slice description, executes slice according to slice description rule；
9) edge returns to HLS and flows to player.
In specific implementation, we parse all live streams for pushing and at the source station of center, are in due course slotting
Enter the SEI with slice description.When client accesses fringe node, triggering edge returns source rtmp, while executing on fringe node
Slice.Other later clients access this edge of table, and edge directly returns to flow data and slice content.
Claims (4)
1. a kind of live stream distribution is sliced synchronous method, which comprises the following steps:
1) it is inserted into the SEI with slice information at the generation end of video content or center source station, that is, the enhancement information supplemented:
2) SEI with slice information is transmitted together in company with other code streams of video and reaches fringe node；
3) fringe node parses code stream, after obtaining slice description, executes slice.
2. live stream distribution according to claim 1 is sliced synchronous method, which is characterized in that the specific implementation of step 1)
Process includes:
1) initialization slice size is a preset value, and slice duration is equal to zero, and Slice Sequence number is equal to 1；
2) code stream is read；
3) judge whether code stream terminates, if terminated, jump to step 12)；If being not finished, enter step 4)；
4) video frame is parsed, nal_unit_type, i.e. NAL unit type are obtained；
5) judge whether nal_unit_type is IDR, and IDR indicates instantaneous decoding refresh；If IDR, then enter step 6)；It is no
Then, return step 2)；
6) slice duration is calculated, wherein slice duration calculation method are as follows: slice duration=current slice duration+current video frame solution
The difference of code timestamp and previous video frame decoding time stamp；
7) judge to be sliced whether duration is greater than the slice size of setting, if it is greater, then entering step 8), otherwise jump to step
11)；
8) SEI with slice description is generated；Wherein slice description is identified comprising Slice Sequence number and discrete state；
9) Slice Sequence number is incremented by, step-length 1, is sliced duration zero setting again；
10) SEI with slice description is inserted into before IDR；
11) code stream is continued to, step 2) is gone to；
12) terminate.
3. live stream distribution according to claim 2 is sliced synchronous method, which is characterized in that execute the specific reality of slice
Now process includes:
1) fringe node receives code stream；
2) initialization Slice Sequence number is zero, and discrete state is identified as very；
3) judge whether code stream terminates, if so, terminating, jump to step 16)；Otherwise, it enters step 4)；
4) video frame is parsed, nal_unit_type is obtained；
5) judge whether nal_unit_type is IDR, if so, entering step 6)；Otherwise, it enters step 7)；
6) judge whether slice creates, jump to step 12) if being sliced and being not present；Otherwise it enters step 14)；
7) judge whether nal_unit_type is SEI, if it is not, then jumping to step 14)；
8) SEI is parsed, judges whether SEI has slice description, if so, into 9)；Otherwise, it enters step 14)；
9) parsing slice description, obtains Slice Sequence number and discrete state identifies；
10) SEI with slice description is abandoned；
11) slice information write is judged whether there is, if so, closing the slice write；
12) name is sliced, wherein naming rule are as follows: stream name _ Slice Sequence number _ custom field suffix name；
13) the new slice of creation；
14) frame data of write-in are discarded if new slice does not create at this time to new slice write-in frame data；
15) code stream is continued to, step 3) is jumped to；
16) terminate.
4. a kind of live stream distribution is sliced synchronizing device characterized by comprising
It is inserted into module, for generating the SEI of end or the insertion of center source station with slice description in video content；
Transmission module reaches fringe node for transmitting slice information together in company with other code streams of video；
Fringe node after obtaining the definite message or answer information of slice information, completes slice for parsing code stream.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110958466A (en) * | 2019-12-17 | 2020-04-03 | 杭州当虹科技股份有限公司 | SDI signal synchronous return method based on RTMP transmission |
| CN111193936A (en) * | 2019-12-27 | 2020-05-22 | 腾讯科技（深圳）有限公司 | Video streaming transmission method and device, electronic equipment and computer readable storage medium |
| CN113542815A (en) * | 2021-09-17 | 2021-10-22 | 广州易方信息科技股份有限公司 | Video live broadcast synchronization method and system |
| CN114071790A (en) * | 2021-12-16 | 2022-02-18 | 中国联合网络通信集团有限公司 | Communication method, device, equipment and storage medium |
| CN114302254A (en) * | 2021-12-28 | 2022-04-08 | 天翼云科技有限公司 | Method and device for transcoding and slicing live video, storage medium and electronic equipment |
| WO2023241057A1 (en) * | 2022-06-13 | 2023-12-21 | 京东科技信息技术有限公司 | Data processing method and apparatus, and device and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744290A (en) * | 2016-01-27 | 2016-07-06 | 观止云（北京）信息技术有限公司 | HLS hot standby method |
| CN108055594A (en) * | 2017-11-14 | 2018-05-18 | 北京百度网讯科技有限公司 | Implementation method, device, computer equipment and the storage medium of edge section |
| US20180241793A1 (en) * | 2017-02-17 | 2018-08-23 | Disney Enterprises, Inc. | Virtual slicer appliance |
| CN108495151A (en) * | 2018-03-22 | 2018-09-04 | 深圳牛视科技有限公司 | A kind of m3u8 format videos live broadcast system and method |
-
2018
- 2018-12-25 CN CN201811589813.3A patent/CN109618208A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744290A (en) * | 2016-01-27 | 2016-07-06 | 观止云（北京）信息技术有限公司 | HLS hot standby method |
| US20180241793A1 (en) * | 2017-02-17 | 2018-08-23 | Disney Enterprises, Inc. | Virtual slicer appliance |
| CN108055594A (en) * | 2017-11-14 | 2018-05-18 | 北京百度网讯科技有限公司 | Implementation method, device, computer equipment and the storage medium of edge section |
| CN108495151A (en) * | 2018-03-22 | 2018-09-04 | 深圳牛视科技有限公司 | A kind of m3u8 format videos live broadcast system and method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110958466A (en) * | 2019-12-17 | 2020-04-03 | 杭州当虹科技股份有限公司 | SDI signal synchronous return method based on RTMP transmission |
| CN111193936A (en) * | 2019-12-27 | 2020-05-22 | 腾讯科技（深圳）有限公司 | Video streaming transmission method and device, electronic equipment and computer readable storage medium |
| CN111193936B (en) * | 2019-12-27 | 2021-11-12 | 腾讯科技（深圳）有限公司 | Video streaming transmission method and device, electronic equipment and computer readable storage medium |
| CN113542815A (en) * | 2021-09-17 | 2021-10-22 | 广州易方信息科技股份有限公司 | Video live broadcast synchronization method and system |
| CN113542815B (en) * | 2021-09-17 | 2022-03-08 | 广州易方信息科技股份有限公司 | Video live broadcast synchronization method and system |
| CN114071790A (en) * | 2021-12-16 | 2022-02-18 | 中国联合网络通信集团有限公司 | Communication method, device, equipment and storage medium |
| CN114071790B (en) * | 2021-12-16 | 2023-05-12 | 中国联合网络通信集团有限公司 | Communication method, device, equipment and storage medium |
| CN114302254A (en) * | 2021-12-28 | 2022-04-08 | 天翼云科技有限公司 | Method and device for transcoding and slicing live video, storage medium and electronic equipment |
| WO2023241057A1 (en) * | 2022-06-13 | 2023-12-21 | 京东科技信息技术有限公司 | Data processing method and apparatus, and device and storage medium |
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