CN106941613A - A kind of compacting of audio frequency and video interflow and supplying system and method - Google Patents
A kind of compacting of audio frequency and video interflow and supplying system and method Download PDFInfo
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- CN106941613A CN106941613A CN201710244806.9A CN201710244806A CN106941613A CN 106941613 A CN106941613 A CN 106941613A CN 201710244806 A CN201710244806 A CN 201710244806A CN 106941613 A CN106941613 A CN 106941613A
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- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
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- 230000000694 effects Effects 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 description 3
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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]
- H04N21/20—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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2368—Multiplexing of audio and video streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/55—Push-based network services
-
- 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
- H04N21/233—Processing of audio elementary streams
-
- 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
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
-
- 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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Television Signal Processing For Recording (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention provides a kind of compacting of audio frequency and video interflow and supplying system and method, and described system includes CDN server, sound pick-up outfit and interflow server；CDN server is distributed to user terminal simultaneously to sound pick-up outfit and interflow server push member video flowing, and by the video flowing after the interflow compacting for collaborating server push；Sound pick-up outfit, first video flowing for being pushed according to CDN server carries out audio recording, and the audio stream of generation is pushed into interflow server；Collaborate server, for CDN members video flowing and audio stream to be carried out into interflow compacting, and by the pushing video streaming to CDN server.The present invention provides first video flowing by CDN server, audio stream is provided by sound pick-up outfit, and the compacting of audio frequency and video interflow is carried out on the server of interflow, first video flowing and audio stream are provided in same equipment and collaborate compacting compared to existing, the effect of interflow compacting separation is realized, the pressure of interflow server is alleviated.
Description
Technical field
The present invention relates to audio frequency and video processing technology field, collaborate to suppress and push system more particularly, to a kind of audio frequency and video
System and method.
Background technology
, it is necessary to be suppressed after the audio of audio video synchronization is collected and recorded with the video flowing received in video annotation is live
It is pushed to server again afterwards.
In order to realize this function, current way is typically to have two kinds, and one kind is to carry out audio at video record scene to adopt
Collection, then suppresses the video recorded simultaneously interflow different with audio progress；Second is that video is synchronized at explanation end
Dub, interflow compacting is carried out to video and audio, the new video stream for carrying out collaborating to be pressed into is pushed to server again.
The first implementation above may require that the equipment for carrying out interflow compacting must be at video record scene；Second
Implementation will also carry out interflow compacting while audio recording due to explaining end to Voice ＆ Video, therefore to explaining end
Performance requirement is higher.
The content of the invention
The present invention provides a kind of audio frequency and video interflow compacting for overcoming above mentioned problem or solving the above problems at least in part
With supplying system and method.
According to an aspect of the invention, there is provided a kind of compacting of audio frequency and video interflow and the system pushed, including CDN service
Device, the sound pick-up outfit with plug-flow function and interflow server；
The CDN server, for simultaneously to the sound pick-up outfit and the interflow server push member video flowing, and
Collaborate the video flowing after the interflow compacting of server push for receiving, and the video flowing collaborated after compacting is distributed to user's end
End；
The sound pick-up outfit, first video flowing for being pushed according to the CDN server carries out audio recording, and audio is recorded
The audio stream produced after system is pushed to interflow server；
The interflow server, is pushed for the first video flowing for pushing the CDN server and the sound pick-up outfit
Audio stream carries out interflow compacting, and will collaborate the pushing video streaming after compacting to CDN server.
Beneficial effects of the present invention are：First video flowing is provided by CDN server, is set by the recording with plug-flow function
It is standby that audio stream is provided, and the compacting of audio frequency and video interflow is carried out on the server of interflow, provided compared to existing in same equipment
First video flowing and audio stream and collaborate compacting, realize interflow compacting separation effect, alleviate interflow server pressure.
On the basis of above-mentioned technical proposal, the present invention can also make following improvement.
Further, the CDN server is additionally operable to regard to the sound pick-up outfit and the interflow server push member
When frequency flows, the timestamp of first video flowing is pushed to sound pick-up outfit and interflow server.
Further, the sound pick-up outfit is additionally operable to：
The timestamp of the first video flowing pushed according to CDN server, and time during sound pick-up outfit progress audio recording
Stamp, using both differences as first time difference, and is pushed to interflow clothes by audio stream and the first time difference simultaneously
Business device.
Further, the interflow server is additionally operable to：
The timestamp of the first video pushed according to CDN server and timestamp when receiving first video flowing, will
Both differences are used as the second time difference.
Further, the interflow server is additionally operable to：
The difference of the first time difference and second time difference is calculated, and is suppressed the difference as interflow
The audio stream that the first video flowing and sound pick-up outfit that parameter is pushed to CDN server are pushed carries out interflow compacting；And be additionally operable to by
Pushing video streaming after the compacting of interflow is to user terminal.
According to another aspect of the present invention, a kind of compacting of audio frequency and video interflow and method for pushing are additionally provided, including：
S1, interflow server receives first video flowing of CDN server push and the sound pick-up outfit with plug-flow function is pushed away
The audio stream sent, wherein, the audio stream is sound pick-up outfit according to first video flowing progress audio recording that CDN server is pushed
Generation；
The audio stream that S2, first video flowing that CDN server is pushed and sound pick-up outfit are pushed carries out interflow compacting；
S3, will collaborate the pushing video streaming after compacting to CDN server, so that CDN server will collaborate regarding after compacting
Frequency flow point issues user terminal.
Further, the CDN server pushes first video flowing to the interflow server and the sound pick-up outfit simultaneously
With the timestamp of first video flowing.
Further, the step S1 also includes：
Collaborate server when receiving the audio stream that sound pick-up outfit is pushed, while receiving the very first time that sound pick-up outfit is pushed
Difference, wherein, the first time difference is that the timestamp and sound pick-up outfit of first video flowing that CDN server is pushed record sound
The difference between timestamp during frequency.
Further, the step S1 also includes：
Collaborate the timestamp for first video flowing that server is pushed according to CDN server and receive CDN server push
Timestamp during first video flowing, regard both differences as the second time difference.
Further, interflow server calculates the first time difference and the difference of second time difference, and will
The difference is flowed into as interflow pressing parameter with the audio that the first video flowing and sound pick-up outfit that are pushed to CDN server are pushed
The compacting of row interflow.
Brief description of the drawings
Audio frequency and video interflow compactings and the Organization Chart of supplying system of the Fig. 1 for one embodiment of the invention；
Audio frequency and video interflow compactings and the flow chart of method for pushing of the Fig. 2 for another embodiment of the present invention；
Audio frequency and video interflow compactings and the whole flow process figure of method for pushing of the Fig. 3 for another embodiment of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Referring to Fig. 1, Fig. 1 provides the compacting of audio frequency and video interflow and the supplying system of one embodiment of the invention, the system bag
Include CDN server, the sound pick-up outfit with plug-flow function and interflow server.CDN server, for simultaneously to sound pick-up outfit and
The interflow server push member video flowing, and the video flowing after the interflow compacting of interflow server push is received, and will close
Video flowing after stream compacting is distributed to user terminal.Sound pick-up outfit, first video for being pushed according to the CDN server is flowed into
Row audio recording, interflow server is pushed to by the audio stream produced after audio recording.Collaborate server, for by CDN service
The audio stream that the first video flowing and sound pick-up outfit that device is pushed are pushed carries out interflow compacting, and will collaborate the pushing video streaming after compacting
To CDN server.
CDN (Content Delivery Network, content distributing network) server gets member from outside in real time and regarded
Frequency flows, and in real time by first video flowing of acquisition simultaneously to the sound pick-up outfit with plug-flow function and interflow server push.Recording
Equipment receives first video flowing of CDN server push, and first video flowing is played out, and carries out audio recording, and will record
Audio stream afterwards pushes to interflow server.Interflow server is set according to the first video flowing received from CDN server and from recording
The standby audio stream pushed, interflow compacting is carried out to first video flowing and audio stream, and will collaborate the pushing video streaming after compacting to CDN
Server, so that the video flowing after compacting is distributed to user terminal by CDN server.Certainly, in the present embodiment, interflow service
The video flowing collaborated after compacting directly can also be directly pushed to user terminal by device, realized and in several ways pressed interflow
Pushing video streaming after system is to user terminal.
The present embodiment provides first video flowing by CDN server, and audio is provided by the sound pick-up outfit with plug-flow function
Stream, and the interflow compacting of audio stream and video flowing is carried out on the server of interflow, provided compared to existing in same equipment
First video flowing and audio stream and collaborate compacting, realize interflow compacting separation effect, alleviate interflow server pressure.
In another embodiment of the present invention, the CDN server is serviced to the sound pick-up outfit and the interflow
When device pushes first video flowing, the timestamp of first video flowing is also pushed to sound pick-up outfit and interflow server.
CDN server during to sound pick-up outfit and interflow server push member video flowing, due to CDN server and
The network state between network state and CDN server and interflow server between sound pick-up outfit may be different.Therefore, i.e.,
Make CDN server simultaneously to sound pick-up outfit and interflow server push member video flowing, sound pick-up outfit receive first video flowing when
Between and interflow server receive time of first video flowing and be likely to different, in this case, interflow server interflow compacting
There is sound in video flowing afterwards and draw nonsynchronous phenomenon.Nonsynchronous problem is drawn in order to solve sound, and CDN is to sound pick-up outfit and conjunction
While streaming server pushes first video flowing, the timestamp of first video flowing is also pushed to sound pick-up outfit and interflow server.
In one embodiment of the invention, sound pick-up outfit be additionally operable to the first video flowing pushed according to CDN server when
Between stab, and sound pick-up outfit carry out audio recording when timestamp, using both differences as first time difference, and simultaneously will
Audio stream and the first time difference are pushed to interflow server.When the member that sound pick-up outfit receives CDN server push is regarded
During the timestamp of frequency stream and first video flowing, audio recording, and timestamp during record audio recording are carried out to first video flowing, by member
The time difference between timestamp when the timestamp and sound pick-up outfit recording audio of video flowing is used as first time difference.From
One time difference is it can be seen that CDN server is pushed to the time delay of first video flowing of sound pick-up outfit.Sound pick-up outfit will be recorded
Audio stream and first time difference be pushed to interflow server.
Collaborate server, specifically for the timestamp of first video pushed according to CDN server and receive the member
Timestamp during video flowing, regard both differences as the second time difference.Pushed when interflow server receives CDN server
First video flowing and first video flowing timestamp when, when the timestamp of first video flowing and interflow server received into first video
Time difference between timestamp can be seen that CDN server is pushed to conjunction as the second time difference from the second time difference
The time delay of first video flowing of streaming server.
In one embodiment of the invention, interflow server is additionally operable to calculate the first time difference and described second
The difference of time difference, and set the difference as first video flowing for being pushed to CDN server of interflow pressing parameter and recording
The standby audio stream pushed carries out interflow compacting.
Interflow server receives the audio stream and first time difference of the recording of sound pick-up outfit push, and calculate
Second time difference, is typically due to certain factor, such as the different factor of network state, first time difference and the second time
Difference is different.Therefore, the interflow server in the present embodiment is calculated between first time difference and the second time difference
Difference, and the difference is subjected to interflow compacting as interflow pressing parameter to audio stream and first video flowing.Regarding after the compacting of interflow
Sound picture during frequency flows is synchronous, overcomes conventional sound and draws the problem of not providing not.Then the video flowing after compacting will be collaborated
CDN server is pushed to, so that the video flowing collaborated after compacting is distributed to user terminal by CDN server.
It is the compacting of audio frequency and video interflow and the method for pushing of another embodiment of the present invention referring to Fig. 2, including：S1, interflow clothes
The audio stream that first video flowing that device reception CDN server of being engaged in is pushed and the sound pick-up outfit with plug-flow function are pushed, wherein, institute
It is that first video flowing that sound pick-up outfit is pushed according to CDN server carries out audio recording and generated to state audio stream；S2, CDN is taken
The audio stream that the first video flowing and sound pick-up outfit that business device is pushed are pushed carries out interflow compacting；S3, will collaborate the video flowing after compacting
CDN server is pushed to, so that the video flowing collaborated after compacting is distributed to user terminal by CDN server.
The present embodiment provides first video flowing by CDN server, and audio is provided by the sound pick-up outfit with plug-flow function
Stream, and the compacting of audio frequency and video interflow is carried out on the server of interflow, compared to it is existing provided in same equipment first video flowing and
Audio stream and collaborate compacting, realize interflow compacting separation effect, alleviate interflow server pressure.
In one embodiment of the invention, CDN server is pushed away to the interflow server and the sound pick-up outfit simultaneously
Send the timestamp of first video flowing and first video flowing.
Collaborate server when receiving the audio stream that sound pick-up outfit is pushed, while receiving the very first time that sound pick-up outfit is pushed
Difference, wherein, the first time difference is that the timestamp and sound pick-up outfit of first video flowing that CDN server is pushed record sound
The difference between timestamp during frequency.Collaborate the timestamp for first video flowing that server is pushed according to CDN server and receive
Timestamp during first video flowing that CDN server is pushed, regard both differences as the second time difference.
Then, interflow server calculates the first time difference and the difference of second time difference, and will be described
The audio stream that the first video flowing and sound pick-up outfit that difference is pushed as interflow pressing parameter to CDN server are pushed carries out interflow pressure
System.It is synchronous so to carry out the sound in the video flowing after the compacting of interflow to draw, and solves current video flowing middle pitch and draws asynchronous
The problem of.
It is the whole flow process figure of the compacting of audio frequency and video interflow and method for pushing referring to Fig. 3.First, CDN server is obtained from outside
Get after first video flowing, regarded simultaneously to the sound pick-up outfit with plug-flow function and interflow server push member video flowing and member in real time
The timestamp of frequency stream.Sound pick-up outfit is received after first video flowing, and audio recording is carried out to first video flowing, generates audio stream, and remember
The difference between timestamp during recording audio, and the timestamp and the timestamp of first video flowing for being by recorded audio is recorded, is designated as
First time difference GT1, and the audio stream of recording and first time difference GT1 are pushed to interflow server.Meanwhile, interflow clothes
Business device calculates interflow server and received when receiving the timestamp of first video flowing of CDN server push and first video flowing
Timestamp during first video flowing and the difference between the timestamp of first video flowing, are designated as the second time difference GT2.Then calculate again
Difference ST=GT1-GT2 between first time difference and the second time difference.Wherein, the scope of ST values can be positive number, negative
And zero.When ST values are positive number, represent that audio stream will postpone the corresponding time and be suppressed with video flowing；When ST values are negative
When, represent that audio stream will shift to an earlier date the corresponding time and be suppressed with video flowing；When ST values are zero, represent audio stream and video flowing without
Lag synchronization is suppressed.It is different that the sound in video flowing after the compacting of interflow, which is drawn, and then, interflow server will collaborate after compacting
The video flowing collaborated after compacting is distributed to user terminal by pushing video streaming to CDN server, CDN server.
The compacting of audio frequency and video interflow and supplying system and method that the present invention is provided, first video flowing is provided by CDN server,
Audio stream is provided by the sound pick-up outfit with plug-flow function, and the compacting of audio frequency and video interflow is carried out on the server of interflow, is compared
It is existing that first video flowing and audio stream are provided in same equipment and collaborate compacting, realize the effect of interflow compacting separation
Really, the pressure of interflow server is alleviated.First video flowing is sent by calculating sound pick-up outfit recording audio and CDN server respectively
Time difference, and calculate interflow server and receive the time difference that first video flowing and CDN server send first video flowing,
And the difference of the two time differences is subjected to interflow compacting as interflow pressing parameter to audio stream and video flowing, to ensure to close
The sound in video flowing after stream compacting draws identical, eliminates because the sound that the factors such as network delay are caused draws nonsynchronous problem.
Finally, the present processes are only preferably embodiment, are not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modifications, equivalent substitutions and improvements made etc. should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of compacting of audio frequency and video interflow and supplying system, it is characterised in that including content distribution network CDN service device, have
The sound pick-up outfit and interflow server of plug-flow function；
The CDN server, for simultaneously to the sound pick-up outfit and the interflow server push member video flowing, and being used for
The video flowing after the interflow compacting of interflow server push is received, and the video flowing collaborated after compacting is distributed to user terminal；
The sound pick-up outfit, first video flowing for being pushed according to the CDN server carries out audio recording, after audio recording
The audio stream of generation is pushed to interflow server；
The interflow server, the audio pushed for the first video flowing for pushing the CDN server and the sound pick-up outfit
Stream carries out interflow compacting, and will collaborate the pushing video streaming after compacting to CDN server.
2. audio frequency and video interflow as claimed in claim 1 compacting and supplying system, it is characterised in that the CDN server is also used
When sound pick-up outfit described in Yu Xiang and the interflow server push member video flowing, the timestamp of first video flowing is pushed to recording
Equipment and interflow server.
3. audio frequency and video interflow as claimed in claim 2 compacting and supplying system, it is characterised in that the sound pick-up outfit is also used
In：
The timestamp of the first video flowing pushed according to CDN server, and timestamp during sound pick-up outfit progress audio recording, will
Audio stream and the first time difference are pushed to interflow server by both differences simultaneously as first time difference.
4. audio frequency and video interflow as claimed in claim 3 compacting and supplying system, it is characterised in that the interflow server is also used
In：
The timestamp of the first video pushed according to CDN server and timestamp when receiving first video flowing, incite somebody to action both
Difference be used as the second time difference.
5. audio frequency and video interflow as claimed in claim 4 compacting and supplying system, it is characterised in that the interflow server is also used
In：
The difference of the first time difference and second time difference is calculated, and regard the difference as interflow compacting ginseng
Number, interflow compacting is carried out with the audio stream that the first video flowing and sound pick-up outfit that are pushed to CDN server are pushed；And be additionally operable to by
Pushing video streaming after the compacting of interflow is to user terminal.
6. a kind of compacting of audio frequency and video interflow and method for pushing, it is characterised in that including：
What S1, first video flowing that interflow server reception CDN server is pushed and the sound pick-up outfit with plug-flow function were pushed
Audio stream, wherein, the audio stream is that first video flowing that sound pick-up outfit is pushed according to CDN server carries out audio recording and generated
's；
The audio stream that S2, first video flowing that CDN server is pushed and sound pick-up outfit are pushed carries out interflow compacting；
S3, will collaborate the pushing video streaming after compacting to CDN server, so that CDN server will collaborate the video flowing after compacting
It is distributed to user terminal.
7. audio frequency and video interflow as claimed in claim 6 compacting and method for pushing, it is characterised in that the CDN server is simultaneously
The timestamp of first video flowing and first video flowing is pushed to the interflow server and the sound pick-up outfit.
8. audio frequency and video interflow as claimed in claim 7 compacting and method for pushing, it is characterised in that the step S1 also includes：
Collaborate server when receiving the audio stream that sound pick-up outfit is pushed, while the very first time for receiving sound pick-up outfit push is poor
Value, wherein, the first time difference is the timestamp and sound pick-up outfit recording audio for first video flowing that CDN server is pushed
When timestamp between difference.
9. audio frequency and video interflow as claimed in claim 7 compacting and method for pushing, it is characterised in that the step S1 also includes：
The timestamp for first video flowing that interflow server is pushed according to CDN server is regarded with the member for receiving CDN server push
Timestamp when frequency flows, regard both differences as the second time difference.
10. audio frequency and video interflow as claimed in claim 9 compacting and method for pushing, it is characterised in that the step S2 is specifically wrapped
Include：
Collaborate server and calculate the first time difference and the difference of second time difference, and regard the difference as conjunction
Pressing parameter is flowed, interflow compacting is carried out with the audio stream that the first video flowing and sound pick-up outfit that are pushed to CDN server are pushed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110650353A (en) * | 2019-09-25 | 2020-01-03 | 广州华多网络科技有限公司 | Multi-person continuous-wheat mixed drawing method and device, storage medium and electronic equipment |
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