CN109218759A - Push method, apparatus, server and the storage medium of Media Stream - Google Patents
Push method, apparatus, server and the storage medium of Media Stream Download PDFInfo
- Publication number
- CN109218759A CN109218759A CN201811133578.9A CN201811133578A CN109218759A CN 109218759 A CN109218759 A CN 109218759A CN 201811133578 A CN201811133578 A CN 201811133578A CN 109218759 A CN109218759 A CN 109218759A
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- China
- Prior art keywords
- media stream
- code rate
- terminal
- service quality
- video
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Classifications
-
- 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
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex 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, manipulating MPEG-4 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
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2402—Monitoring of the downstream path of the transmission network, e.g. bandwidth available
Abstract
The invention discloses a kind of method, apparatus, server and storage mediums for pushing Media Stream, belong to network technique field.The described method includes: pushing the first Media Stream to the terminal, the code rate of first Media Stream is the first code rate when receiving the acquisition request of terminal；During push, the service quality being connected to the network between the terminal and the server is monitored；When the current service quality of the network connection is lower than target service quality, determine that the second Media Stream, the code rate of second Media Stream are the second code rate to match with the current service quality of the network connection；Second Media Stream is pushed to the terminal.The present invention pushes the process of the Media Stream of different code rates by switching, improves the transmission rate to terminal push Media Stream, avoids the Caton situation of terminal plays process, ensure that the fluency of terminal plays process.
Description
Technical field
The present invention relates to network technique field, in particular to a kind of method, apparatus, server and storage for pushing Media Stream
Medium.
Background technique
With the development of network technology, networking viewing Online Video, has become people's more universal day at the terminal
Chang Hangwei.For example, the live video on user's watching video live broadcast platform.Wherein, during terminal networking plays Online Video,
The background server of the net cast platform needs in real time to the Media Stream of terminal push live video where user.
In the related technology, terminal is during live streaming, since the network connection between background server and terminal may
There is network jitter, alternatively, the background server is needed based on current when other terminals access or exit the net cast platform
Situation is accessed, adjusts the broadband resource that each terminal occupies in real time, to influence the transmission speed between background server and terminal
Degree, quality of Media Stream of transmission etc.；Cause terminal plays in the process can frequent Caton.Therefore, a kind of server is needed at present
The method for pushing Media Stream, so as to guarantee the fluency of terminal plays video.
Summary of the invention
The embodiment of the invention provides a kind of method, apparatus, server and storage mediums for pushing Media Stream, are able to solve
During terminal plays the problem of frequent Caton.The technical solution is as follows:
On the one hand, a kind of method for pushing Media Stream is provided, the method is applied on the server, the method packet
It includes:
When receiving the acquisition request of terminal, the first Media Stream, the code of first Media Stream are pushed to the terminal
Rate is the first code rate；
During push, the service quality being connected to the network between the terminal and the server is monitored；
When the current service quality of the network connection is lower than target service quality, the second Media Stream is determined, described the
The code rate of two Media Streams is the second code rate to match with the current service quality of the network connection；
Second Media Stream is pushed to the terminal.
Optionally, described when receiving the acquisition request of terminal, it is described before pushing the first Media Stream to the terminal
Method further include:
Determine the first code rate of first Media Stream；
According to first code rate and second code rate, compression processing is carried out to first Media Stream, obtains second
Second Media Stream of code rate.
Optionally, the process that compression processing is carried out to first Media Stream are as follows: by the code of first Media Stream
Rate is adjusted to second code rate by first code rate, by the frame per second of video flowing in first Media Stream and every frame video frame
Frame type remain unchanged, obtain second Media Stream, second code rate is less than first code rate.
Optionally, described according to first code rate and second code rate, first Media Stream is carried out at compression
Reason, the second Media Stream for obtaining the second code rate include:
Obtain the video flowing and audio stream in first Media Stream；
The code rate of video flowing in first Media Stream is adjusted to the second code rate, second code rate is less than described first
Code rate；
According to the video flowing after the audio stream and adjustment code rate in first Media Stream, the second Media Stream is generated.
Optionally, described when receiving the acquisition request of terminal, pushing the first Media Stream to the terminal includes:
When receiving the acquisition request, the first transmit queue of creation, the second transmit queue and third transmit queue；
Video flowing in first Media Stream is stored to first transmit queue, it will be in first Media Stream
Audio stream is stored to the second transmit queue, and the video flowing in second Media Stream is stored to the third transmit queue；
The audio stream in video flowing and second transmit queue in first transmit queue is sent to the terminal.
Optionally, described during push, monitor the Service Quality being connected to the network between the terminal and the server
Amount includes:
During push, the transmission rate of video flowing in first transmit queue, first transmit queue are monitored
For storing the video flowing in the first Media Stream；
According to the transmission rate of video flowing in first transmit queue, the service quality of the network connection is determined.
Optionally, the video flowing of first Media Stream includes multiple video sequences, and each video sequence includes multiframe view
Frequency frame, the transmission rate according to video flowing in first transmit queue, determines the service quality packet of the network connection
It includes:
When the multi-frame video frame of current video sequence in the multiple video sequence has been sent, detects described first and send
It whether there is the video frame of next video sequence in queue；
When the video frame of next video sequence is not present in first transmit queue, the network connection is determined
Service quality is not less than target service quality；
When the video frame of next video sequence is not present in first transmit queue, the network connection is determined
Service quality is lower than the target service quality.
Optionally, described when the current service quality of the network connection is lower than target service quality, determine the second matchmaker
Body stream includes:
When the current service quality of the network connection be lower than target service quality when, according in first Media Stream when
The timestamp of the video frame of preceding transmission determines video frame to be sent in second Media Stream；
Correspondingly, described push second Media Stream to the terminal, comprising:
Since video frame to be sent described in second Media Stream, second media are pushed to the terminal
Stream.
Optionally, after second Media Stream to terminal push, the method also includes:
When the current service quality of the network connection is not less than the target service quality, by second Media Stream
It is switched to first Media Stream.
On the other hand, a kind of device for pushing Media Stream is provided, described device is applied in server, described device packet
It includes:
Pushing module pushes the first Media Stream to the terminal for when receiving the acquisition request of terminal, and described the
The code rate of one Media Stream is the first code rate；
Monitoring modular, for monitoring the service being connected to the network between the terminal and the server during push
Quality；
Determining module, for determining second when the current service quality of the network connection is lower than target service quality
Media Stream, the code rate of second Media Stream are the second code rate to match with the current service quality of the network connection；
The pushing module is also used to push second Media Stream to the terminal.
Optionally, described device further include:
The determining module is also used to determine the first code rate of first Media Stream；
Compression module, for being compressed to first Media Stream according to first code rate and second code rate
Processing, obtains the second Media Stream of the second code rate.
Optionally, the compression module is also used to for the code rate of first Media Stream being adjusted to by first code rate
The frame type of the frame per second of video flowing and every frame video frame in first Media Stream is remained unchanged, is obtained by second code rate
Second Media Stream, second code rate are less than first code rate.
Optionally, the compression module is also used to obtain video flowing and audio stream in first Media Stream；It will be described
The code rate of video flowing is adjusted to the second code rate in first Media Stream, and second code rate is less than first code rate；According to described
The video flowing after audio stream and adjustment code rate in first Media Stream, generates the second Media Stream.
Optionally, the pushing module is also used to when receiving the acquisition request, the first transmit queue of creation, the
Two transmit queues and third transmit queue；Video flowing in first Media Stream is stored to first transmit queue, it will
Audio stream in first Media Stream is stored to the second transmit queue, and the video flowing in second Media Stream is stored to institute
State third transmit queue；It is sent in video flowing and second transmit queue in first transmit queue to the terminal
Audio stream.
Optionally, the monitoring modular is also used to during push, monitors video flowing in first transmit queue
Transmission rate；According to the transmission rate of video flowing in first transmit queue, the service quality of the network connection, institute are determined
The first transmit queue is stated for storing the video flowing in the first Media Stream.
Optionally, the video flowing of first Media Stream includes multiple video sequences, and each video sequence includes multiframe view
Frequency frame,
The determining module is also used to send when the multi-frame video frame of current video sequence in the multiple video sequence
When, detect the video frame that whether there is next video sequence in first transmit queue；When in first transmit queue
There is no when the video frame of next video sequence, determine the service quality of the network connection not less than target service quality；
When the video frame of next video sequence is not present in first transmit queue, the service quality of the network connection is determined
Lower than the target service quality.
Optionally, the determining module is also used to the current service quality when the network connection lower than destination service matter
When amount, according to the timestamp of video frame currently transmitted in first Media Stream, determine to be sent in second Media Stream
Video frame；
Correspondingly, the pushing module, is also used to since video frame to be sent described in second Media Stream, to
The terminal pushes second Media Stream.
Optionally, described device further include:
Switching module, for inciting somebody to action when the current service quality of the network connection is not less than the target service quality
Second Media Stream is switched to first Media Stream.
On the other hand, a kind of server is provided, the server includes processor and memory, is deposited in the memory
At least one instruction is contained, described instruction is loaded by the processor and executed to realize the method such as above-mentioned push Media Stream
Performed operation.
On the other hand, a kind of computer readable storage medium is provided, at least one finger is stored in the storage medium
It enables, described instruction is loaded as processor and executed to realize the operation as performed by the method for above-mentioned push Media Stream.
Technical solution provided in an embodiment of the present invention has the benefit that
Method and device provided in an embodiment of the present invention, by server in the process for pushing the first Media Stream to the terminal
In, monitor the service quality being connected to the network between the terminal and the server；When the current service quality of the network connection is lower than
When target service quality, the second Media Stream to match to terminal push with the service quality being currently connected to the network passes through
Switching pushes the process of the Media Stream of different code rates, improves the transmission rate to terminal push Media Stream, avoids terminal plays
The Caton situation of process, ensure that the fluency of terminal plays process.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of implementation environment figure for pushing Media Stream provided in an embodiment of the present invention
Fig. 2 is a kind of flow chart of method for pushing Media Stream provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of method for pushing Media Stream provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of device for pushing Media Stream provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of server provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Fig. 1 is a kind of implementation environment figure for pushing Media Stream provided in an embodiment of the present invention, as shown in Figure 1, the implementation ring
Border includes server 101, terminal 102, is equipped with multimedia application in the terminal 102, which can pass through the multimedia
Application plays multimedia file, multi-medium data includes audio data or video data etc. in the multimedia file.The server
101 be the background server of the multimedia application.The server 101 and the terminal 102 are based on the multimedia application and carry out data
Interaction.
The multimedia application has the online playing function of multimedia, and multimedia resource can be configured in the server 101
Library, the server 101 support the multimedia of the multimedia application to broadcast online based on the multimedia resource in the multimedia resources database
Playing function.Alternatively, the server 101 can also from other equipment real-time acquiring multi-media stream, based in real time obtain, in real time turn
The data exchange process of hair supports the online playing function of the multimedia of the multimedia application.For example, net cast application.
Wherein, which can carry out compression processing for Media Stream in advance, obtain the first Media Stream of the first code rate
With the second Media Stream of the second code rate, the first code rate is higher than the second code rate, which can be first to the push of terminal 102 the
One Media Stream, and during push, the service quality of the network connection between real-time monitoring terminal 102 and server 101, when
When service quality is poor, which is switched to the second Media Stream for the first Media Stream；When again service quality is restored to good
When, which switches to the first Media Stream for the second Media Stream again and pushes.
Wherein, which can also can have multiple including transcoding server, the number of server 101, when the clothes
When business device 101 obtains the first Media Stream in real time from other equipment, any server 101 in multiple server 101 is received
To first Media Stream, the server 101 that the Media Stream is received in multiple servers 101 is known as source stream media services herein
First Media Stream dress is sent to transcoding server by device, the source stream media server, and the transcoding server is to first Media Stream
Compression processing is carried out, the second Media Stream is obtained, the transcoding server is by second media stream to the source stream media server.
Any server in multiple servers 101 can receive the acquisition request of terminal 102, will receive terminal 102 herein and obtain
The server of request is known as edge streaming server, the edge streaming server obtained from source stream media server this
One Media Stream and the second Media Stream, and it is based on above-mentioned push process, the first Media Stream or the second media are pushed to terminal 102
Stream.In this process, which is equivalent to the parent server of the edge streaming server.Wherein, to clothes
The other equipment that business device 101 pushes Media Stream can be the terminal 102 of other users, for example, being broadcast live whole where main broadcaster on platform
End 102, then the terminal 102 where viewer sends acquisition request to server.
Certainly, the number of the server 101 can also be one, above-mentioned source stream media server, transcoding server and side
The process of the upper execution of edge streaming media server can also be realized that in the following embodiments, the application is only by a server
Be introduced so that server realizes the above process as an example, but the embodiment of the present invention to the execution equipment of above-mentioned multiple processes simultaneously
It is not specifically limited.
Fig. 2 is a kind of flow chart of method for pushing Media Stream provided in an embodiment of the present invention.This method can be applied
On server, referring to fig. 2, this method comprises:
201, when receiving the acquisition request of terminal, the first Media Stream, the code of first Media Stream are pushed to the terminal
Rate is the first code rate；
202, during push, the service quality being connected to the network between the terminal and the server is monitored；
203, when the current service quality of the network connection is lower than target service quality, the second Media Stream is determined, this
The code rate of two Media Streams is the second code rate to match with the current service quality of the network connection；
204, second Media Stream is pushed to the terminal.
Optionally, when should receive the acquisition request of terminal, before pushing the first Media Stream to the terminal, this method is also
Include:
Determine the first code rate of first Media Stream；
According to first code rate and second code rate, compression processing is carried out to first Media Stream, obtains the second code rate
Second Media Stream.
Optionally, process that compression processing is carried out to first Media Stream are as follows: by the code rate of first Media Stream by this
First code rate is adjusted to second code rate, and the frame type of the frame per second of video flowing and every frame video frame in first Media Stream is kept
It is constant, second Media Stream is obtained, which is less than first code rate.
Optionally, this carries out compression processing to first Media Stream according to first code rate and second code rate, obtains the
Second Media Stream of two code rates includes:
Obtain the video flowing and audio stream in first Media Stream；
The code rate of video flowing in first Media Stream is adjusted to the second code rate, which is less than first code rate；
According to the video flowing after the audio stream and adjustment code rate in first Media Stream, the second Media Stream is generated.
Optionally, when should receive the acquisition request of terminal, pushing the first Media Stream to the terminal includes:
When upon receiving the acquisition request, the first transmit queue of creation, the second transmit queue and third transmit queue；
Video flowing in first Media Stream is stored to first transmit queue, by the audio stream in first Media Stream
It stores to the second transmit queue, the video flowing in second Media Stream is stored to the third transmit queue；
The audio stream in video flowing and second transmit queue in first transmit queue is sent to the terminal.
Optionally, should be during push, monitoring the service quality being connected to the network between the terminal and the server includes:
During push, the transmission rate of video flowing in first transmit queue is monitored, which is used for
Store the video flowing in the first Media Stream；
According to the transmission rate of video flowing in first transmit queue, the service quality of the network connection is determined.
Optionally, the video flowing of first Media Stream includes multiple video sequences, and each video sequence includes multi-frame video
Frame, the transmission rate according to video flowing in first transmit queue, determines that the service quality of the network connection includes:
When the multi-frame video frame of current video sequence in multiple video sequence has been sent, first transmit queue is detected
In whether there is next video sequence video frame；
When the video frame of next video sequence is not present in first transmit queue, the service of the network connection is determined
Quality is not less than target service quality；
When the video frame of next video sequence is not present in first transmit queue, the service of the network connection is determined
Quality is lower than the target service quality.
Optionally, when deserving the current service quality of the network connection lower than target service quality, the second Media Stream is determined
Include:
When the current service quality of the network connection is lower than target service quality, currently sent out according in first Media Stream
The timestamp for the video frame sent determines video frame to be sent in second Media Stream；
Correspondingly, this pushes second Media Stream to the terminal, comprising:
Since second Media Stream the video frame to be sent, second Media Stream is pushed to the terminal.
Optionally, after this pushes second Media Stream to the terminal, this method further include:
When the current service quality of the network connection is not less than the target service quality, which is switched to
First Media Stream.
In the embodiment of the present invention, server can monitor the terminal during pushing the first Media Stream to the terminal
The service quality being connected to the network between the server；When the current service quality of the network connection is lower than target service quality
When, the second Media Stream to match to terminal push with the service quality being currently connected to the network is different by switching push
The process of the Media Stream of code rate improves the transmission rate to terminal push Media Stream, avoids the Caton feelings of terminal plays process
Condition ensure that the fluency of terminal plays process.
Fig. 3 is a kind of flow chart of method for pushing Media Stream provided in an embodiment of the present invention.The inventive embodiments are held
Row main body is server, referring to Fig. 3, this method comprises:
301, when receiving the acquisition request of terminal, server pushes the first Media Stream to the terminal.
Wherein, the code rate of first Media Stream is the first code rate；Acquisition request user indicates to return to target to the terminal
The Media Stream of multimedia file, the acquisition request carry the multi-media tag of the destination multimedia file, when receiving terminal
When acquisition request, which obtains the multi-media tag from the acquisition request, according to the multi-media tag, obtain this first
Media Stream returns to first Media Stream to the terminal based on the network connection established between the terminal.
In the embodiment of the present invention, server can be based on the service quality being connected to the network between terminal and server, to end
End pushes the Media Stream of different code rates, to be adapted to current service quality, terminal plays caused by avoiding Network status bad
Phenomena such as Caton.Therefore, in this step, which can obtain the corresponding Media Stream of the multi-media tag in advance, and to this
One Media Stream carries out compression processing, to obtain the Media Stream of multiple code rates.Before this step, it is more which obtains this in advance
The process of the Media Stream of a code rate can be with are as follows: server determines the first code rate of first Media Stream, according to first code rate and
Second code rate carries out compression processing to first Media Stream, obtains the second Media Stream of the second code rate.Wherein, the second code
Rate is less than first code rate.
In a kind of possible embodiment, in compression processing, which can also be arranged the difference of compression front and back
The frame per second and frame type of Media Stream are constant, to guarantee follow-up play accuracy.Therefore, server carries out first Media Stream
The process of compression processing are as follows: the code rate of first Media Stream is adjusted to second code rate by first code rate by server, by this
The frame type of the frame per second of video flowing and every frame video frame remains unchanged in first Media Stream, obtains second Media Stream.
Wherein, frame per second refers to the frame number of the video frame of display per second, and frame type refers to the type of every frame video frame, the frame class
Type may include key frame and non-key frame.First Media Stream is being carried out code rate only to be reduced, without changing in compression process
Become the frame per second and frame type of the first Media Stream, so that before compression processing and after processing, each frame video frame in the first Media Stream
It can be corresponded with frame video frame each in the second Media Stream.
In a kind of possible embodiment, which includes video flowing and audio stream, which can also be only right
Video flowing in first Media Stream carries out compression processing, then the process that the server carries out compression processing to first Media Stream can
With are as follows: server obtains the video flowing and audio stream in first Media Stream；Server is by video flowing in first Media Stream
Code rate is adjusted to the second code rate, which is less than first code rate；The server is according to the audio in first Media Stream
Video flowing after stream and adjustment code rate, generates the second Media Stream.
Wherein, much smaller than video flowing of the size of general audio stream, the biography of the service quality of network connection to audio stream
Defeated rate influences less, which only can also carry out compression processing to the video flowing in Media Stream, to save equipment
Resource reduces the processing time of compression process, further improves treatment effeciency.
Further, before pushing first Media Stream to terminal, which can also create transmit queue, respectively
Audio stream, video flowing are stored respectively into different transmit queues.Wherein, when receiving acquisition request, server is to terminal
The process for pushing the first Media Stream can be with are as follows: when upon receiving the acquisition request, server creates the first transmit queue, the second hair
Send queue and third transmit queue；Server stores the video flowing in first Media Stream to first transmit queue, by this
Audio stream in first Media Stream is stored to the second transmit queue, and the video flowing in second Media Stream is stored to the third and is sent out
Send queue；Server sends the audio stream in video flowing and second transmit queue in first transmit queue to the terminal.
Wherein, when sending video flowing, the server can since the second transmit queue first key video sequence frame,
The video flowing in the first Media Stream is pushed to terminal, wherein first key frame is generally High Bitrate in the video flowing
Next Key Frame。
In a kind of possible embodiment, which can also be corresponding with multiple video modes, different video modes
The service quality of corresponding network connection is also different.The terminal can have high bit-rate video mode and low bit-rate video mode,
Before server pushes Media Stream to terminal, which can also obtain the present mode of terminal, when the current mould of the terminal
When formula is high bit-rate video mode, then the server sends the first Media Stream to the terminal, when the present mode of the terminal is low
When bit-rate video mode, then the service area sends the second Media Stream to the terminal.
In the embodiment of the present invention, only it is illustrated so that the compression process is by the second Media Stream of Media Stream boil down to as an example, when
So, multiple Media Streams which can also be different by the first Media Stream boil down to code rate, for example, the second of the second code rate
Media Stream, third Media Stream of third code rate etc., the third code rate are lower than the second code rate and the first code rate.Certainly, the server
The different multiple Media Streams of code rate can be obtained by way of repeatedly compressing, can also be arranged different by first compression
Code rate parameter, obtains the different multiple Media Streams of code rate, which obtains the mistake of the second Media Stream and third Media Stream
Journey no longer repeats one by one herein for the process with above-mentioned compression process similarly.
It should be noted that server carries out compression processing by original Media Stream, multiple code rates differences, size are obtained
Different Media Streams, also, the server can also only change the code rate of Media Stream, not change the frame per second and frame class of Media Stream
Type ensure that subsequent switching push process so that compressing the consistency of the timestamp of each frame video frame in the Media Stream of front and back
In accuracy.
302, server monitors the service quality being connected to the network between the terminal and the server during push.
In the embodiment of the present invention, which can be come by the transmission rate of video flowing in the real-time detection Media Stream
The service quality of monitoring network connection.In this step, during push, which can be monitored in first transmit queue
The transmission rate of video flowing, server determine the network connection according to the transmission rate of video flowing in first transmit queue
Service quality.Wherein, which is used to store the video flowing in the first Media Stream.
Wherein, which can analyze the video by the transmission state of each video frame in real-time detection Media Stream
The transmission rate of stream, specifically, the video flowing of first Media Stream includes multiple video sequences, each video sequence includes multiframe
Video frame, the server can be with the transmission states of multi-frame video frame in each video sequence of real-time detection, when multiple video sequence
When the multi-frame video frame of current video sequence has been sent in column, server is detected in first transmit queue with the presence or absence of next
The video frame of video sequence；When the video frame of next video sequence is not present in first transmit queue, server is determined
The service quality of the network connection reaches target service quality；When there is no next video sequences in first transmit queue
When video frame, server determines that the service quality of the network connection is not up to the target service quality.
It should be noted that the video frame of multiple video sequences can be continued not frame losing by server is transmitted to terminal,
It can be transmitted with frame losing.Wherein, each video sequence includes a frame key frame and multiframe non-key frame, and it is more that server can abandon this
Frame non-key frame.Therefore, which can also be whenever any frame view in the multi-frame video frame for send out current video sequence
When frequency frame, detection first is sent with the presence or absence of the key frame in next video sequence in sequence, if first sends in sequence
There is no the key frames in next video sequence, then illustrate that server smoothly sends the key frame in multiple video sequences,
Service quality is preferable；Otherwise, then illustrate that service quality is poor.
In a kind of possible embodiment, the transmission rate which can be connected to the network with real-time detection, when this
When transmission rate is not less than scheduled rate, which determines the current service quality not less than target service quality, when the biography
When defeated rate is less than the scheduled rate, which determines the current service quality lower than the target service quality.
303, when the current service quality of the network connection is lower than target service quality, server determines the second media
Stream.
Wherein, the code rate of second Media Stream is the second code rate to match with the current service quality of the network connection；
In this step, when the current service quality of network connection is lower than target service quality, the server is according to currently transmitted the
One Media Stream determines that third sends the video flowing of sequence and the audio stream of the second transmission sequence, which is sent to the view of sequence
The audio stream of frequency stream and the second sequence, is determined as the second to be switched Media Stream.
In the embodiment of the present invention, due in compression process, the frame per second and frame of the first Media Stream and the second Media Stream
Type can remain unchanged, and server is previously stored the timestamp of each video frame in Media Stream, and therefore, which can be with base
In timestamp, the switching push of the Media Stream of different code rates is carried out.In this step, when the current service quality of network connection is lower than
When target service quality, which can be according to the timestamp of video frame currently transmitted in first Media Stream, and determining should
Video frame to be sent in second Media Stream.Wherein, video currently transmitted in available first Media Stream of the server
The timestamp of frame searches the corresponding video frame of the timestamp from the second Media Stream, so that it is determined that the second Media Stream.Further
, the server can also according to the timestamp and frame type of currently transmitted video frame, from the second Media Stream from search with
The timestamp and the identical video frame of frame type of the currently transmitted video frame.
It should be noted that server is pushed by the switching for carrying out Media Stream based on timestamp and frame type, to protect
The accuracy and reliability of Media Stream switching push is demonstrate,proved.
In a kind of possible embodiment, the server according to first transmission sequence in currently push video frame when
Between stab, when searching the third and sending the corresponding video frame of the timestamp in sequence, if server is not sent in sequence from third
Video frame corresponding with the timestamp is found, that is to say, which can not the unremitting video flowing for carrying out different code rates
Switching, then server can with frame losing send first send sequence in video frame.Wherein, which can abandon next
Non-key frame in video sequence.Certainly, video frame corresponding with the timestamp is found if sent in sequence from third,
The third is sent the video frame in sequence and is determined as video frame to be pushed by server.
It should be noted that server can carry out the switching push of Media Stream based on timestamp and frame type, so that pushing away
It will not be interrupted during sending, to ensure that the accuracy and reliability of Media Stream switching push.In addition, based on timestamp without
When method keeps uninterrupted push, which can also continue push first and send in sequence in such a way that frame losing is sent
Video frame realizes the real-time and continuity of push Media Stream process to ensure that the push free of discontinuities of video flowing.
304, server pushes second Media Stream to the terminal.
In this step, which sends the audio stream of sequence and the video of third transmission sequence to terminal push second
Stream.Also, the server can push second matchmaker to the terminal since second Media Stream the video frame to be sent
Body stream, and, which continues the transmission progress for sending sequence based on when sending the first Media Stream second, continues to push away to terminal
Send the audio stream of the second transmission sequence.
In a kind of possible embodiment, which continues monitoring network during pushing the second Media Stream
The service quality of connection, wherein the mode of the service quality of monitoring server network connection, similarly with above-mentioned steps 302
Process no longer repeats one by one herein.
305, when the current service quality of the network connection is not less than the target service quality, server is by second matchmaker
Body stream is switched to first Media Stream.
In the embodiment of the present invention, the current service quality of the monitoring server to the network connection is restored again to preferable shape
When state, which can also switch to the first Media Stream for the second Media Stream again and push.
Wherein, when the current service quality of monitoring server to network connection is lower than the target service quality, illustrate net
Network state is still bad, which can send second Media Stream with frame losing, so that server can push Media Stream continuously
Disconnected property, to guarantee that the terminal receives and play online the real-time and fluency of Media Stream.
In addition, the server can also be first when the current service quality of network connection is not less than the target service quality
Default video frame is sent, and judges the current service quality whether still not less than the target service quality, when the current service
When quality is still not less than the target service quality, which is switched to first Media Stream for second Media Stream again, from
And it ensure that the reliability of handoff procedure.Wherein, when the current service quality of network connection is not less than the target service quality,
The server can continue to send one group of preset video frame, include the video of multiframe ascending order arrangement in the preset video frame of the group
Frame, the server put in order according to each video frame in the preset video frame of the group, successively push from small to large to terminal
The preset video frame of the group, during push, when the current service quality of network connection is still not less than the destination service matter
When amount, which is switched to first Media Stream for second Media Stream again.Otherwise, which continues to push to terminal and be somebody's turn to do
Second Media Stream.
It wherein, include video frame identical with the size of the video frame of first Media Stream in the preset video frame of the group.
During sending the group preset video frame, which can increase unit for the timestamp of currently transmitted video frame
Time, the timestamp as every frame video frame in the preset video frame of the group.Wherein, the preset video frame of the group can be H264
The video puppet frame of standard compression, terminal receive followed by judge to be not belonging to normal video frame to not decode, directly according to H264 standard
It connects and ignores.
It should be noted that whether the service quality that the video puppet frame is mainly used for detection network connection is restored, and with
This combines the audio-video size actually forwarded to calculate downlink transmission rate, if downlink transmission rate is more than high bit-rate video and audio
Code rate constantly forwards the postorder of second Media Stream at this time into the state for preparing to be switched to the first Media Stream in this case
Video frame obtains the timestamp of the frame key frame, and the time is searched from the first Media Stream until being sent to a frame key frame
Corresponding key frame is stabbed, if be switched to the second Media Stream there are the corresponding key frame of the timestamp in the first Media Stream
First Media Stream is pushed, to guarantee live video clarity.Otherwise, continue the second Media Stream of push low bit- rate.
In the embodiment of the present invention, server can monitor the terminal during pushing the first Media Stream to the terminal
The service quality being connected to the network between the server；When the current service quality of the network connection is lower than target service quality
When, the second Media Stream to match to terminal push with the service quality being currently connected to the network is different by switching push
The process of the Media Stream of code rate improves the transmission rate to terminal push Media Stream, avoids the Caton feelings of terminal plays process
Condition ensure that the fluency of terminal plays process.
Fig. 4 is a kind of structural schematic diagram of device for pushing Media Stream provided in an embodiment of the present invention.The device is applied to
In server, referring to fig. 4, which includes: pushing module 401, monitoring modular 402 and determining module 403.
Pushing module 401 pushes the first Media Stream to the terminal for when receiving the acquisition request of terminal, this
The code rate of one Media Stream is the first code rate；
Monitoring modular 402, for monitoring the Service Quality being connected to the network between the terminal and the server during push
Amount；
Determining module 403, for determining second when the current service quality of the network connection is lower than target service quality
Media Stream, the code rate of second Media Stream are the second code rate to match with the current service quality of the network connection；
The pushing module 401 is also used to push second Media Stream to the terminal.
Optionally, the device further include:
The determining module 403 is also used to determine the first code rate of first Media Stream；
Compression module, for carrying out compression processing to first Media Stream, obtaining according to first code rate and second code rate
To the second Media Stream of the second code rate.
Optionally, the compression module, be also used to by the code rate of first Media Stream by first code rate be adjusted to this second
The frame type of the frame per second of video flowing and every frame video frame in first Media Stream is remained unchanged, obtains second media by code rate
Stream, second code rate are less than first code rate.
Optionally, the compression module is also used to obtain video flowing and audio stream in first Media Stream；By first matchmaker
The code rate of video flowing is adjusted to the second code rate in body stream, which is less than first code rate；According in first Media Stream
Audio stream and adjustment code rate after video flowing, generate the second Media Stream.
Optionally, the pushing module 401 is also used to create the first transmit queue, second upon receiving the acquisition request
Transmit queue and third transmit queue；Video flowing in first Media Stream is stored to first transmit queue, by this first
Audio stream in Media Stream is stored to the second transmit queue, and the video flowing in second Media Stream is stored to the third and sends team
Column；The audio stream in video flowing and second transmit queue in first transmit queue is sent to the terminal.
Optionally, the monitoring modular 402, is also used to during push, monitors video flowing in first transmit queue
Transmission rate；According to the transmission rate of video flowing in first transmit queue, the service quality of the network connection is determined, this first
Transmit queue is used to store the video flowing in the first Media Stream.
Optionally, the video flowing of first Media Stream includes multiple video sequences, and each video sequence includes multi-frame video
Frame,
The determining module 403 is also used to send when the multi-frame video frame of current video sequence in multiple video sequence
When, detect the video frame that whether there is next video sequence in first transmit queue；It is not deposited when in first transmit queue
In the video frame of next video sequence, determine the service quality of the network connection not less than target service quality；When this
When the video frame of next video sequence being not present in one transmit queue, determine the service quality of the network connection lower than the target
Service quality.
Optionally, the determining module 403 is also used to the current service quality when the network connection lower than target service quality
When, according to the timestamp of video frame currently transmitted in first Media Stream, determine video to be sent in second Media Stream
Frame；
Correspondingly, the pushing module 401, is also used to since second Media Stream the video frame to be sent, to this
Terminal pushes second Media Stream.
Optionally, the device further include:
Switching module, for when the current service quality of the network connection is not less than the target service quality, by this
Two Media Streams are switched to first Media Stream.
In the embodiment of the present invention, server can monitor the terminal during pushing the first Media Stream to the terminal
The service quality being connected to the network between the server；When the current service quality of the network connection is lower than target service quality
When, the second Media Stream to match to terminal push with the service quality being currently connected to the network is different by switching push
The process of the Media Stream of code rate improves the transmission rate to terminal push Media Stream, avoids the Caton feelings of terminal plays process
Condition ensure that the fluency of terminal plays process.
All the above alternatives can form the alternative embodiment of the disclosure, herein no longer using any combination
It repeats one by one.
It should be understood that it is provided by the above embodiment push Media Stream device when pushing Media Stream, only with above-mentioned
The division progress of each functional module can according to need and for example, in practical application by above-mentioned function distribution by different
Functional module is completed, i.e., the internal structure of equipment is divided into different functional modules, with complete it is described above whole or
Partial function.In addition, the device of push Media Stream provided by the above embodiment and the embodiment of the method for push Media Stream belong to together
One design, specific implementation process are detailed in embodiment of the method, and which is not described herein again.
Fig. 5 is a kind of structural schematic diagram of server provided in an embodiment of the present invention, which can be because of configuration or property
Energy is different and generates bigger difference, may include one or more processors (central processing
Units, CPU) 501 and one or more memory 502, wherein at least one finger is stored in the memory 502
It enables, which is loaded by the processor 501 and executed the push matchmaker to realize above-mentioned each embodiment of the method offer
The method of body stream.Certainly, which can also have the portions such as wired or wireless network interface, keyboard and input/output interface
Part, to carry out input and output, which can also include other for realizing the component of functions of the equipments, not do herein superfluous
It states.
In the exemplary embodiment, a kind of computer readable storage medium is additionally provided, the memory for example including instruction,
The method that above-metioned instruction can be executed by the processor in terminal to complete the push Media Stream in above-described embodiment.For example, the meter
Calculation machine readable storage medium storing program for executing can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk and optical data storage and set
It is standby etc..
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (15)
1. a kind of method for pushing Media Stream, which is characterized in that the method application is on the server, which comprises
When receiving the acquisition request of terminal, the first Media Stream is pushed to the terminal, the code rate of first Media Stream is
First code rate；
During push, the service quality being connected to the network between the terminal and the server is monitored；
When the current service quality of the network connection is lower than target service quality, the second Media Stream, second matchmaker are determined
The code rate of body stream is the second code rate to match with the current service quality of the network connection；
Second Media Stream is pushed to the terminal.
2. the method according to claim 1, wherein described when receiving the acquisition request of terminal, to described
Before terminal pushes the first Media Stream, the method also includes:
Determine the first code rate of first Media Stream；
According to first code rate and second code rate, compression processing is carried out to first Media Stream, obtains the second code rate
The second Media Stream.
3. according to the method described in claim 2, it is characterized in that, the mistake for carrying out compression processing to first Media Stream
Journey are as follows: the code rate of first Media Stream is adjusted to second code rate by first code rate, by first Media Stream
The frame type of the frame per second of middle video flowing and every frame video frame remains unchanged, and obtains second Media Stream, and second code rate is small
In first code rate.
4. according to the method described in claim 2, it is characterized in that, described according to first code rate and second code rate,
Compression processing is carried out to first Media Stream, the second Media Stream for obtaining the second code rate includes:
Obtain the video flowing and audio stream in first Media Stream；
The code rate of video flowing in first Media Stream is adjusted to the second code rate, second code rate is less than described first yard
Rate；
According to the video flowing after the audio stream and adjustment code rate in first Media Stream, the second Media Stream is generated.
5. the method according to claim 1, wherein described when receiving the acquisition request of terminal, to described
Terminal pushes the first Media Stream
When receiving the acquisition request, the first transmit queue of creation, the second transmit queue and third transmit queue；
Video flowing in first Media Stream is stored to first transmit queue, by the audio in first Media Stream
Stream is stored to the second transmit queue, and the video flowing in second Media Stream is stored to the third transmit queue；
The audio stream in video flowing and second transmit queue in first transmit queue is sent to the terminal.
6. the method according to claim 1, wherein described during push, monitor the terminal with it is described
The service quality being connected to the network between server includes:
During push, the transmission rate of video flowing in first transmit queue is monitored, first transmit queue is used for
Store the video flowing in the first Media Stream；
According to the transmission rate of video flowing in first transmit queue, the service quality of the network connection is determined.
7. according to the method described in claim 6, it is characterized in that, the video flowing of first Media Stream includes multiple video sequences
Column, each video sequence includes multi-frame video frame, the transmission rate according to video flowing in first transmit queue, is determined
The service quality of the network connection includes:
When the multi-frame video frame of current video sequence in the multiple video sequence has been sent, first transmit queue is detected
In whether there is next video sequence video frame；
When the video frame of next video sequence is not present in first transmit queue, the service of the network connection is determined
Quality is not less than target service quality；
When the video frame of next video sequence is not present in first transmit queue, the service of the network connection is determined
Quality is lower than the target service quality.
8. the method according to claim 1, wherein described when the current service quality of the network connection is lower than
When target service quality, determine that the second Media Stream includes:
When the current service quality of the network connection is lower than target service quality, currently sent out according in first Media Stream
The timestamp for the video frame sent determines video frame to be sent in second Media Stream；
Correspondingly, described push second Media Stream to the terminal, comprising:
Since video frame to be sent described in second Media Stream, second Media Stream is pushed to the terminal.
9. the method according to claim 1, wherein it is described to the terminal push second Media Stream it
Afterwards, the method also includes:
When the current service quality of the network connection is not less than the target service quality, second Media Stream is switched
For first Media Stream.
10. a kind of device for pushing Media Stream, which is characterized in that on the server, described device includes: for described device application
Pushing module, for pushing the first Media Stream, first matchmaker to the terminal when receiving the acquisition request of terminal
The code rate of body stream is the first code rate；
Monitoring modular, for monitoring the service quality being connected to the network between the terminal and the server during push；
Determining module, for determining the second media when the current service quality of the network connection is lower than target service quality
Stream, the code rate of second Media Stream are the second code rate to match with the current service quality of the network connection；
The pushing module is also used to push second Media Stream to the terminal.
11. device according to claim 10, which is characterized in that described device further include:
The determining module is also used to determine the first code rate of first Media Stream；
Compression module, for carrying out compression processing to first Media Stream according to first code rate and second code rate,
Obtain the second Media Stream of the second code rate.
12. device according to claim 10, which is characterized in that
The pushing module is also used to when receiving the acquisition request, creation the first transmit queue, the second transmit queue and
Third transmit queue；Video flowing in first Media Stream is stored to first transmit queue, by first media
Audio stream in stream is stored to the second transmit queue, and the video flowing in second Media Stream is stored to the third and sends team
Column；The audio stream in video flowing and second transmit queue in first transmit queue is sent to the terminal.
13. device according to claim 10, which is characterized in that described device further include:
Switching module will be described for when the current service quality of the network connection is not less than the target service quality
Second Media Stream is switched to first Media Stream.
14. a kind of server, which is characterized in that the server includes processor and memory, is stored in the memory
At least one instruction, described instruction are loaded by the processor and are executed to realize such as any one of claim 1 to claim 9
Operation performed by the method for the push Media Stream.
15. a kind of computer readable storage medium, which is characterized in that be stored at least one instruction, institute in the storage medium
Instruction is stated to be loaded by processor and executed to realize such as claim 1 to the described in any item push Media Streams of claim 9
Operation performed by method.
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