CN103856806A - Video stream switching method, device and system - Google Patents
Video stream switching method, device and system Download PDFInfo
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Abstract
The invention discloses a video stream switching method, device and system, and belongs to the field of multimedia processing. The method comprises the following steps that: a video stream label with decoding parameters which is contained in received two or over two paths of video stream is saved; when a current video stream is switched to an alternative video stream, decoding parameters in the video stream label of the alternative video stream are used to replace decoding parameters in the video stream label of the current video stream; a video stream label after replacement of decoding parameters is sent to a video player; and to-be-broadcasted data in the alternative video stream are sent to the video player. In the invention, the decoding parameters in the video stream label in the current video stream are replaced, so as to make the video player automatically reset the decoding parameters; two video data streams can be seamlessly switched; and especially the seamless switching effect between two video data streams with different decoding parameters is realized.
Description
Technical field
The present invention relates to multimedia process field, particularly a kind of video flowing changing method, Apparatus and system.
Background technology
FLV(Flash Video, Streaming Media) be application a kind of video format very widely now, can adopt different code checks and the resolution FLV stream of encoding.
Carrying out under the scene of net cast, may exist multichannel FLV stream can supply to play simultaneously, such as, in Olympic Games network direct broadcasting system, may receive the live two-way FLV stream of the live and basketball of the football carrying out just at the same time, now have the problem of switching back and forth between two-way FLV stream.Existing video flowing changing method mainly comprises: the first, cut off the connection when last road FLV stream; The second, reconnect server and obtain the data that an other road FLV flows.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem: linked server similarly is to be switched to another one channel from a channel again, can cause data buffering, produce the interruption of video playback, have a strong impact on user and experience.
Summary of the invention
Easily produce the problem of interruption in order to solve existing video flowing changing method, the embodiment of the present invention provides a kind of video flowing changing method, Apparatus and system.Described technical scheme is as follows:
First aspect, provides a kind of video flowing changing method, and described method comprises:
The video flowing label that comprises decoding parametric in the above video flowing of the two-way that preservation receives or two-way;
Switch to alternative videos when stream from current video stream, replace the decoding parametric in the video flowing label that described current video flows with the decoding parametric in the video flowing label of described alternative videos stream;
Described in transmission, be replaced video flowing label after decoding parametric to video player;
Send data to be played in described alternative videos stream to described video player.
Further, the decoding parametric in the video flowing label of the described alternative videos of described use stream also comprises before replacing the decoding parametric in the video flowing label of described current video stream:
Judge that whether the decoding parametric in the video flowing label of decoding parametric in the video flowing label of described alternative videos stream and described current video stream is identical;
If identical, directly carry out data to be played in the described alternative videos of the described transmission stream step to described video player;
If not identical, to carry out decoding parametric in the video flowing label of the described alternative videos of described use stream and replace the decoding parametric in the video flowing label of described current video stream step.
Further, the data to be played in the described alternative videos stream of described transmission, to before described video player, also comprise:
Preserve in described current video stream and be switched last timestamp in front institute played data;
Data to be played in the described alternative videos stream of described transmission are to described video player, and correspondence comprises:
Revise all timestamps in the data to be played in described alternative videos stream, make amended timestamp all be greater than last timestamp of described preservation;
Data to be played after modification time stamp are sent to described video player.
Further, described switch to alternative videos stream from current video stream before, also comprise:
Obtain the transmission rate of leading to described video encoder;
Judge whether to switch to alternative videos stream from current video stream according to described transmission rate;
If so, carry out the described step that switches to alternative videos stream from current video stream.
Further, describedly judge whether to switch to alternative videos stream from current video stream according to described transmission rate, specifically comprise:
Detect described transmission rate and whether be greater than the first predetermined threshold;
Be greater than the first predetermined threshold if detect, switch to described alternative videos stream from described current video stream, the code check of described alternative videos stream is greater than the code check of described current video stream;
And/or,
Detect described transmission rate and whether be less than the second predetermined threshold;
Be less than the second predetermined threshold if detect, switch to described alternative videos stream from described current video stream, the code check of described alternative videos stream is less than the code check of described current video stream.
Second aspect, provides a kind of video flowing switching device shifter, and described device comprises:
Label is preserved module, the video flowing label that comprises decoding parametric for preserving the two-way that receives or the above video flowing of two-way;
Parameter replacement module, for switch to alternative videos when stream from current video stream, replaces the decoding parametric in the video flowing label that described current video flows with the decoding parametric in the video flowing label of described alternative videos stream;
Parameter sending module, for being replaced video flowing label after decoding parametric described in sending to video player;
Data transmission blocks, for the data to be played that send described alternative videos stream to described video player.
Further, described video flowing switching device shifter, also comprises:
Parameter judge module;
Whether described parameter judge module is identical for judging the decoding parametric in the decoding parametric of video flowing label and the video flowing label of described current video stream that described alternative videos flows;
Described data transmission blocks, if be also identical for the judged result of described parameter judge module, directly carries out data to be played in the described alternative videos of the described transmission stream step to described video player;
Described parameter sending module, if specifically for the judged result of described parameter judge module for not identical, the step of carrying out decoding parametric in the video flowing label of the described alternative videos stream of described use and replacing the decoding parametric in the video flowing label of described current video stream.
Further, described video flowing switching device shifter, also comprises:
Time is preserved module;
The described time is preserved module, is switched last timestamp in front institute played data for preserving described current video stream;
Described data transmission blocks, correspondence comprises:
Time modification unit and data transmission unit;
Described time modification unit, for revising all timestamps in the data to be played of described alternative videos stream, makes amended timestamp all be greater than last timestamp of described preservation;
Described data transmission unit, for sending to described video player by the data to be played after modification time stamp.
Further, described video flowing switching device shifter, also comprises:
Speed acquisition module and switching judging module;
Described speed acquisition module, for obtaining the transmission rate of leading to described video encoder;
Described switching judging module, need to switch to alternative videos stream from current video stream for judging whether according to described transmission rate;
Described parameter modification module, if be yes for the judged result of described switching judging module, carries out the described step that switches to alternative videos stream from current video stream.
Further, described switching judging module, specifically for:
Detect described transmission rate and whether be greater than the first predetermined threshold; Be greater than the first predetermined threshold if detect, need to switch to described alternative videos stream from described current video stream, the code check of described alternative videos stream is greater than the code check of described current video stream;
And/or,
Detect described transmission rate and whether be less than the second predetermined threshold; Be less than the second predetermined threshold if detect, need to switch to described alternative videos stream from described current video stream, the code check of described alternative videos stream is less than the code check of described current video stream.
The third aspect, provides a kind of audio/video player system, it is characterized in that, described system comprises: at least two clients that video flowing provides server, video flowing switching device shifter and comprises video player;
Described video flowing switching device shifter is as the video flowing switching device shifter as described in arbitrary in the various further embodiment of second aspect or second aspect.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
Replace the decoding parametric in the video flowing label in current video stream by utilization, make the video player decoding parametric of can automatically resetting, having solved existing video flowing changing method reconnects server and easily produces the problem of interruption, reach and saved existing video flowing changing method in the time that two video flowings switch, direct broadcast server need to disconnect corresponding to the network of current video stream and connecting, again set up again corresponding to the network of alternative videos stream and connect, and need to again read the spent more time of related data (such as header file) of alternative videos stream, reach without re-establishing connection, two video data streams just can seamless switching, the video data stream that particularly two decoding parametrics are not identical can seamless switching effect.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the method flow diagram of the video flowing changing method that provides of the embodiment of the present invention one;
Fig. 2 A is the implementation environment schematic diagram of the video flowing changing method that provides of the embodiment of the present invention two;
Fig. 2 B is the method flow diagram of the video flowing changing method that provides of the embodiment of the present invention two;
Fig. 3 A is the implementation environment schematic diagram of the video flowing changing method that provides of the embodiment of the present invention three;
Fig. 3 B is the method flow diagram of the video flowing changing method that provides of the embodiment of the present invention three;
Fig. 4 is the structural representation of the video flowing switching device shifter that provides of the embodiment of the present invention four;
Fig. 5 is the structural representation of the video flowing switching device shifter that provides of the embodiment of the present invention five;
Fig. 6 is the structural representation of the video flowing switching device shifter that provides of the embodiment of the present invention six;
Fig. 7 is the structural representation of the audio/video player system that provides of the embodiment of the present invention seven.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
FLV(Flash Video, Streaming Media) stream is a kind of stream media format for encapsulate video coded data, its inner video data encoder can be with standard code H.264.In the time that H.264 video data encoder employing encodes, FLV stream comprises the label of three types, is respectively audio tag, video tab and metadata (Metadata) label.In metadata tag, conventionally all include decoding parametric SPS(sequence parameterset sequence parameter set) and decoding parametric PPS(picture parameter set, picture parameter set).Wherein:
Decoding parametric SPS refers to: the common trait of all images in a video sequence (data before from an IDR frame to next IDR frame are referred to as a video sequence) is extracted, leave in SPS syntactic units.Also, only have between two video sequences and could switch SPS.In other words, only have first sheet of IDR frame can switch SPS." common trait " comprises the information of resolution and code check and so on, conventionally in a video sequence, remains unchanged, and can be used for decoding.
Decoding parametric PPS refers to: the characteristic feature of each image is extracted, leave in PPS syntactic units.Also, only have between image and could switch PPS.In other words, only have first sheet of every two field picture can switch PPS.
Wherein, IDR frame belongs to a kind of special I frame.When decoder is received IDR frame, all Reference Frame Lists are abandoned.This point is the total characteristics of all I frames, but while receiving IDR frame, the work that decoder need to do is in addition exactly: all decoding parametric PPS and SPS are upgraded, the decoding parametric of decoder is upgraded.
Please refer to Fig. 1, it shows the method flow diagram of the video flowing changing method that the embodiment of the present invention one provides.This video flowing changing method, comprising:
In sum, the video flowing changing method that the embodiment of the present invention provides, replace the decoding parametric in the video flowing label in current video stream by utilization, make the video player decoding parametric of can automatically resetting, having solved existing video flowing changing method reconnects server and easily produces the problem of interruption, save existing video flowing changing method in the time that two video flowings switch, direct broadcast server need to disconnect corresponding to the network of current video stream and connecting, again set up again corresponding to the network of alternative videos stream and connect, and again read the spent more time of related data (such as header file) of alternative videos stream, reach without re-establishing connection, two video data streams just can seamless switching, the video data stream that particularly two decoding parametrics are not identical can seamless switching effect.
In a upper embodiment, whether video flowing needs to switch, and can be to trigger current device by miscellaneous equipment to switch; Also can be to trigger and switch by current device self.For the situation of being switched by miscellaneous equipment triggering current device is described in detail, please refer to as follows:
See Fig. 2 A, it shows the structural representation of the related a kind of implementation environment of video flowing changing method that the embodiment of the present invention two provides.This implementation environment is an audio/video player system, this audio/video player system comprises: the first video flowing provides server 21, the second video flowing to provide server 22, the 3rd video flowing that server 23, direct broadcast server 24, instructor in broadcasting's platform 25, CDN(Content Delivery Network, content distributing network are provided) network 26 and the client 27 that comprises video player.
Wherein, the first video flowing provides server 21, the second video flowing to provide server 22 and the 3rd video flowing to provide server 23 to provide respectively separately a road FLV to flow to direct broadcast server 24, resolution and the code check of Zhe San road FLV stream can be identical, also can be different.
See Fig. 2 B, it shows the method flow diagram of the video flowing changing method that the embodiment of the present invention two provides.The present embodiment is mainly applied in direct broadcast server 24 as shown in Figure 2 A and illustrates with this video flowing changing method.Simultaneously, the present embodiment also only the encapsulation format taking FLV as video flowing illustrate, be applied to other and have the embodiment of the Streaming Media handoff scenario of identical or similar structure for this video flowing changing method, for those skilled in the art easily full of beard and part, repeat no longer one by one.This video flowing changing method, comprising:
Step 201, the video flowing label that comprises decoding parametric in the two-way that preservation receives or the above video flowing of two-way;
Direct broadcast server can receive from the first video flowing provides server, the second video flowing to provide server and the 3rd video flowing that server San road FLV stream is provided, and each FLV stream is respectively used to carry different video contents.Now, direct broadcast server can extract the video flowing label that comprises decoding parametric in each road FLV stream, and is stored to precalculated position.In addition, direct broadcast server also can be exported to CDN network by Xian Jiang mono-road FLV stream, to play in real time.
Step 202, the switch-over control signal of reception instructor in broadcasting platform;
Instructor in broadcasting's platform can, in the time that needs carry out video content switching, send switch-over control signal to direct broadcast server.This switch-over control signal is used to indicate direct broadcast server and switches to the alternative FLV stream of another one from the FLV stream of current broadcasting.Such as, switch-over control signal be used to indicate direct broadcast server from current broadcasting, provide the FLV stream of server to switch to the FLV stream from the second transcoding player from the first video flowing.
Step 203, preserves in current video stream and is switched last timestamp in front institute played data;
Played data comprises audio tag and video tab, and timestamp (Timestamp) is data that exist in audio frequency and video label, and it might not be related with the real time, only for identifying the sequencing of each audio frequency and video label.After direct broadcast server receives switch-over control signal, can preserve in current video stream and be switched last timestamp in front institute played data.Specifically, can be the timestamp in last audio tag or the video tab in the current video sequence of playing.
Step 204, judges that whether the decoding parametric in the video flowing label of decoding parametric in the video flowing label of alternative videos stream and current video stream is identical; If identical, enter step 205; If not identical, enter step 206;
The video flowing label of current video stream can be first the video flowing label that comprises coding parameter in next video sequence after the video sequence of current broadcasting in current video stream, also the i.e. video flowing label relevant with first sheet of next IDR frame, coding parameter comprises PPS and SPS; The video flowing label of alternative videos stream can be first the video flowing label that comprises coding parameter in the video sequence receiving recently in alternative videos stream, also the i.e. video flowing label relevant with first sheet that has received recently IDR frame, coding parameter comprises PPS and SPS equally.Direct broadcast server can judge that whether both decoding parametrics are identical.
Step 205, the data to be played in transmission alternative videos stream are to video player;
If both decoding parametrics are identical, direct broadcast server can send to video player as data to be played using the video sequence receiving recently in alternative videos stream.Specifically in the present embodiment, direct broadcast server can, via the transmission of CDN network, send to alternative videos stream the client that comprises video player.Specifically, this step can comprise following two sub-steps:
The first, all timestamps in the data to be played in amendment alternative videos stream, make amended timestamp all be greater than last timestamp of preservation;
Because the timestamp of alternative videos stream middle pitch video tab may be less than the timestamp of current video stream middle pitch video tab, so, need to revise all timestamps in the data to be played in alternative videos stream, make amended timestamp all be greater than last timestamp that step 203 is preserved.
The second, the data to be played after modification time stamp are sent to video player.
After the timestamp of alternative videos stream middle pitch video tab is all modified, direct broadcast server can send to video player by the data to be played after modification time stamp.
Step 206, with the decoding parametric in the video flowing label of the decoding parametric replacement current video stream in the video flowing label of alternative videos stream;
If both decoding parametrics are not identical, the decoding parametric in the video flowing label that direct broadcast server can flow with the decoding parametric replacement current video in the video flowing label of alternative videos stream.
Step 207, sends the video flowing label being replaced after decoding parametric to video player;
Direct broadcast server can send the video flowing label being replaced after decoding parametric to video player.At this moment, video player can utilize existing IDR update mechanism replacement decoding parametric naturally, and the decoding parametric that in fact flowed by current video of decoding parametric after resetting switches the decoding parametric for alternative videos stream.
Step 205, the data to be played in transmission alternative videos stream are to video player.
If both decoding parametrics are not identical, but direct broadcast server the decoding parametric of current video stream is replaced, direct broadcast server still can send data to be played in alternative videos stream to video player.Concrete process of transmitting is with reference to aforementioned.Because the decoding parametric in video player now has in fact switched the decoding parametric for alternative videos stream, although the data difference of both resolution or code check and so on, video player still can directly be play alternative videos stream.
Obviously, whole handoff procedure is seamless carrying out, and does not need to reconnect the operations such as server, removes the impact of network rate, can not produce Caton phenomenon.
In sum, the video flowing changing method that the embodiment of the present invention provides, replace the decoding parametric in the video flowing label in current video stream by utilization, make the video player decoding parametric of can automatically resetting, having solved existing video flowing changing method reconnects server and easily produces the problem of interruption, reach and saved existing video flowing changing method in the time that two video flowings switch, direct broadcast server need to disconnect corresponding to the network of current video stream and connecting, again set up again corresponding to the network of alternative videos stream and connect, and again read the spent more time of related data (such as header file) of alternative videos stream, reach without re-establishing connection, two video data streams just can seamless switching, the video data stream that particularly two decoding parametrics are not identical can seamless switching effect.
Whether video flowing needs to switch, and can be also to be triggered and switched by current device self.In order to be described in detail triggering by current device self situation of switching, please refer to as follows:
See Fig. 3 A, it shows the structural representation of the related a kind of implementation environment of video flowing changing method that the embodiment of the present invention three provides.This implementation environment is a live broadcast system, this live broadcast system comprises: the first video flowing provides server 31, the second video flowing to provide server 32, the 3rd video flowing that server 33, direct broadcast server 34, CDN(Content Delivery Network, content distributing network are provided) network 36 and client 37.
Wherein, the first video flowing provides server 31, the second video flowing to provide server 32 and the 3rd video flowing to provide server 33 to provide respectively separately a road FLV to flow to direct broadcast server 34, the content of Zhe San road FLV stream can be just the same, but resolution and code check can be different.Such as, resolution and code check that the first video flowing provides server 31 to provide are the highest, can be referred to as the high definition version of current video; Resolution and code check that the second video flowing provides server 32 to provide are medium, can be referred to as the SD version of current video; Resolution and code check minimum that the 3rd video flowing provides server 33 to provide, can be referred to as the general clear version of current video.
See Fig. 3 B, it shows the method flow diagram of the video flowing changing method that the embodiment of the present invention two provides.The present embodiment is mainly applied in CDN network 36 as shown in Figure 3A and illustrates with this video flowing changing method.Simultaneously, the present embodiment also only the encapsulation format taking FLV as video flowing illustrate, be applied to other and have the embodiment of the Streaming Media handoff scenario of identical or similar structure for this video flowing changing method, for those skilled in the art easily full of beard and part, repeat no longer one by one.This video flowing changing method, comprising:
CDN network can receive sent by direct broadcast server, provide server, the second video flowing to provide server and the 3rd video flowing to provide server San road FLV to flow from the first video flowing, the content of each FLV stream can be just the same, but resolution and code check can be different.Now, CDN network can extract the video flowing label that comprises decoding parametric in each road FLV stream, and is stored to precalculated position.In addition, CDN network also can be exported to client by Xian Jiang mono-road FLV stream, to play in real time.Such as, CDN network can select SD video to send to client, or CDN network can select the suitable FLV stream in a road to send to client according to the current network rate of client.
CDN network can obtain the transmission rate towards video encoder, is also the network rate between CDN network and client.In using because actual, the network rate between CDN network and client may fluctuate at any time.
CDN network can judge whether to switch to alternative videos stream from current video stream according to transmission rate.Specifically, this step can comprise any in following two kinds of implementations:
The first, whether detected transmission speed is greater than the first predetermined threshold; Be greater than the first predetermined threshold if detect, switch to alternative videos stream from current video stream, the code check of alternative videos stream is greater than the code check of current video stream;
In such cases, network rate between CDN network and client is improved by poor, and CDN network can determine current video stream need to switch to the alternative videos stream with higher code check, such as: from SD video switch to HD video, or, from general clear video switch to SD video.
The second, whether detected transmission speed is less than the second predetermined threshold; Be less than the second predetermined threshold if detect, switch to alternative videos stream from current video stream, the code check of alternative videos stream is less than the code check of current video stream
In such cases, network rate between CDN network and client is by good variation, and CDN network can determine current video stream need to switch to the alternative videos stream with lower code check, such as: from SD video switch to general clear video, or, switch to SD video from HD video.
Played data comprises audio tag and video tab, and timestamp (Timestamp) is data that exist in audio frequency and video label, and it might not be related with the real time, only for identifying the sequencing of each audio frequency and video label.After CDN network determines and needs Switch Video stream, can preserve in current video stream and be switched last timestamp in front institute played data.Specifically, can be the timestamp in last audio tag or the video tab in the current video sequence of playing.
The decoding parametric that flows both due to current video stream and alternative videos in the present embodiment is not identical, the decoding parametric in the video flowing label that CDN network can flow with the decoding parametric replacement current video in the video flowing label of alternative videos stream.
Wherein, the video flowing label of current video stream can be first the video flowing label that comprises coding parameter in next video sequence after the video sequence of current broadcasting in current video stream, also the i.e. video flowing label relevant with first sheet of next IDR frame, coding parameter comprises PPS and SPS; The video flowing label of alternative videos stream can be first the video flowing label that comprises coding parameter in the video sequence receiving recently in alternative videos stream, also the i.e. video flowing label relevant with first sheet that has received recently IDR frame, coding parameter comprises PPS and SPS equally.
CDN network can send the video flowing label being replaced after decoding parametric to client.At this moment, client can be utilized existing IDR update mechanism replacement decoding parametric naturally, and the decoding parametric that in fact flowed by current video of decoding parametric after resetting switches the decoding parametric for alternative videos stream.
CDN network sends data to be played in the alternative videos stream concrete process of transmitting to client, can be with reference to as follows:
The first, all timestamps in the data to be played in amendment alternative videos stream, make amended timestamp all be greater than last timestamp of preservation;
Because the timestamp of alternative videos stream middle pitch video tab may be less than the timestamp of current video stream middle pitch video tab, so, need to revise all timestamps in the data to be played in alternative videos stream, make amended timestamp all be greater than last timestamp that step 304 is preserved.
The second, the data to be played after modification time stamp are sent to video player.
After the timestamp of alternative videos stream middle pitch video tab is all modified, CDN network can send to client by the data to be played after modification time stamp.
Because the decoding parametric in client now has in fact switched the decoding parametric for alternative videos stream, although the data difference of both resolution or code check and so on, client still can directly be play alternative videos stream.
Obviously, whole handoff procedure is seamless carrying out, and does not need to reconnect the operations such as server, removes the impact of network rate, can not produce Caton phenomenon.
In sum, the video flowing changing method that the embodiment of the present invention provides, replace the decoding parametric in the video flowing label in current video stream by utilization, make the video player decoding parametric of can automatically resetting, having solved existing video flowing changing method reconnects server and easily produces the problem of interruption, reach and saved existing video flowing changing method in the time that two video flowings switch, direct broadcast server need to disconnect corresponding to the network of current video stream and connecting, again set up again corresponding to the network of alternative videos stream and connect, and need to again read the spent more time of related data (such as header file) of alternative videos stream, reach without re-establishing connection, two video data streams just can seamless switching, the video data stream that particularly two decoding parametrics are not identical can seamless switching effect.In addition, also pass through according to the network rate of client, dynamic regulating video switches, and can provide best result of broadcast for client.
It should be noted that, although know with CDN network that in advance resolution and the code check of every road video flowing illustrate in the present embodiment.But in fact, still can increase by CDN network and judge the whether identical step of decoding parametric in the video flowing of each road, so that CDN network can judge and identify resolution and the code check of each road video flowing.This be the easy full of beard of those skilled in the art and content, repeat no longer one by one.
Embodiment tetra-
Please refer to Fig. 4, it shows the block diagram of the video flowing switching device shifter that the embodiment of the present invention four provides.This video flowing switching device shifter can be realized the part becoming in direct broadcast server or CDN network.This video flowing switching device shifter, comprising: label is preserved module 420, parameter replacement module 440, parameter sending module 460 and data transmission blocks 480.
Label is preserved module 420, the video flowing label that comprises decoding parametric for preserving the two-way that receives or the above video flowing of two-way;
Data transmission blocks 480, for after described parameter sending module 460 sends the video flowing label of replacing after decoding parametrics, sends data to be played in described alternative videos stream to described video player.
In sum, the video flowing switching device shifter that the embodiment of the present invention provides, replace the decoding parametric in the video flowing label in current video stream by utilization, make the video player decoding parametric of can automatically resetting, having solved existing video flowing changing method reconnects server and easily produces the problem of interruption, reach and saved existing video flowing changing method in the time that two video flowings switch, direct broadcast server need to disconnect corresponding to the network of current video stream and connecting, again set up again corresponding to the network of alternative videos stream and connect, and need to again read the spent more time of related data (such as header file) of alternative videos stream, reach without re-establishing connection, two video data streams just can seamless switching, the video data stream that particularly two decoding parametrics are not identical can seamless switching effect.
Embodiment five
Please refer to Fig. 5, it shows the block diagram of the video flowing switching device shifter that the embodiment of the present invention five provides.This video flowing switching device shifter can be realized the part becoming in direct broadcast server or CDN network.This video flowing switching device shifter, comprising: label is preserved module 420, time preservation module 432, parameter judge module 434, parameter replacement module 440, parameter sending module 460 and data transmission blocks 480.
Label is preserved module 420, the video flowing label that comprises decoding parametric for preserving the two-way that receives or the above video flowing of two-way;
Time is preserved module 432, for switch to alternative videos stream from current video stream before, preserves in described current video stream and is switched last timestamp in front institute played data;
Data transmission blocks 480, for after described parameter sending module 460 sends the video flowing label of replacing after decoding parametrics, sends data to be played in described alternative videos stream to described video player.
Described data transmission blocks 480, if be also identical for the judged result of described parameter judge module 434, directly carries out data to be played in the described alternative videos of the described transmission stream step to described video player.
Described data transmission blocks 480, can comprise: time modification unit 482 and data transmission unit 484;
Described time modification unit 482, for revising all timestamps in the data to be played of described alternative videos stream, makes amended timestamp all be greater than the described time and preserves last timestamp that module 432 is preserved;
Described data transmission unit 484, for sending to described video player by the data to be played after modification time stamp.
In sum, the video flowing switching device shifter that the embodiment of the present invention provides, replace the decoding parametric in the video flowing label in current video stream by utilization, make the video player decoding parametric of can automatically resetting, having solved existing video flowing changing method reconnects server and easily produces the problem of interruption, reach and saved existing video flowing changing method in the time that two video flowings switch, direct broadcast server need to disconnect corresponding to the network of current video stream and connecting, again set up again corresponding to the network of alternative videos stream and connect, and need to again read the spent more time of related data (such as header file) of alternative videos stream, reach without re-establishing connection, two video data streams just can seamless switching, the video data stream that particularly two decoding parametrics are not identical can seamless switching effect.
Embodiment six
Please refer to Fig. 6, it shows the block diagram of the video flowing switching device shifter that the embodiment of the present invention six provides.This video flowing switching device shifter can be realized the part becoming in direct broadcast server or CDN network.This video flowing switching device shifter, comprising: label is preserved module 420, speed acquisition module 436, switching judging module 438, time preservation module 432, parameter replacement module 440, parameter sending module 460 and data transmission blocks 480.
Label is preserved module 420, the video flowing label that comprises decoding parametric for preserving the two-way that receives or the above video flowing of two-way;
Switching judging module 438, judges whether to switch to alternative videos stream from current video stream for the transmission rate getting according to described speed acquisition module 436;
Time is preserved module 432, if specifically for the judged result of described switching judging module 438 during for needs, preserves described current video and is switched last timestamp in front institute played data in flowing;
Data transmission blocks 480, for after described parameter sending module 460 sends the video flowing label of replacing after decoding parametrics, sends data to be played in described alternative videos stream to described video player.
Described data transmission blocks 480, can comprise: time modification unit 482 and data transmission unit 484;
Described time modification unit 482, for revising all timestamps in the data to be played of described alternative videos stream, makes amended timestamp all be greater than the described time and preserves last timestamp that module 432 is preserved;
Described data transmission unit 484, for sending to described video player by the data to be played after modification time stamp.
Further say, above-mentioned switching judging module 438, specifically for:
Detect described transmission rate and whether be greater than the first predetermined threshold; Be greater than the first predetermined threshold if detect, need to switch to described alternative videos stream from described current video stream, the code check of described alternative videos stream is greater than the code check of described current video stream;
And/or,
Detect described transmission rate and whether be less than the second predetermined threshold; Be less than the second predetermined threshold if detect, need to switch to described alternative videos stream from described current video stream, the code check of described alternative videos stream is less than the code check of described current video stream.
In sum, the video flowing switching device shifter that the embodiment of the present invention provides, replace the decoding parametric in the video flowing label in current video stream by utilization, make the video player decoding parametric of can automatically resetting, having solved existing video flowing changing method reconnects server and easily produces the problem of interruption, reach and saved existing video flowing changing method in the time that two video flowings switch, direct broadcast server need to disconnect corresponding to the network of current video stream and connecting, again set up again corresponding to the network of alternative videos stream and connect, and need to again read the spent more time of related data (such as header file) of alternative videos stream, reach without re-establishing connection, two video data streams just can seamless switching, the video data stream that particularly two decoding parametrics are not identical can seamless switching effect.In addition, also pass through according to the network rate of video player, dynamic regulating video switches, and can provide best result of broadcast for client.
Embodiment seven
Please refer to Fig. 7, it shows the block diagram of the audio/video player system that the embodiment of the present invention seven provides.This audio/video player system, comprising: at least two clients 760 that video flowing provides server 720, video flowing switching device shifter 740 and comprises video player.
At least two video flowings provide server 720 for providing respectively a road video flowing to video flowing switching device shifter 740, each video flowing provides content, resolution and the code check of the video flowing that server 720 provides to video flowing switching device shifter 740 can be identical, also can be different.
The client 760 that comprises video player is for carrying out video playback receiving after the data that video flowing switching device shifter 740 sends.
From Fig. 2 A and Fig. 3 A, video flowing switching device shifter 740 can be realized the part in a part or the CDN network becoming in direct broadcast server, CDN network, direct broadcast server.Wherein:
The first, when video flowing switching device shifter 740 is realized while becoming a part of in direct broadcast server or direct broadcast server;
Provide server 720 to provide two-way or the above video flowing of two-way to video flowing switching device shifter 740 by least two video flowings.The video flowing label that comprises decoding parametric in the two-way that video flowing switching device shifter 740 receives specifically for preservation or the above video flowing of two-way; Then while switching to alternative videos stream from current video stream, with the decoding parametric in the video flowing label of the decoding parametric replacement current video stream in the video flowing label of alternative videos stream; Moreover, can be via the transmission of CDN network, send video flowing label after described replacement decoding parametric to the client 760 that comprises video player; Finally, after sending the video flowing label of replacing after decoding parametric, can also be via the transmission of CDN network, the data to be played in the described alternative videos stream of continuation transmission are to the client 760 that comprises video player.
The second, when video flowing switching device shifter 740 is realized while becoming a part of in CDN network or CDN network;
At least two video flowings provide server 720 to send two-way or video flowing more than two-way, and can, via after the transmission of direct broadcast server, be sent to video flowing switching device shifter 740.The video flowing label that comprises decoding parametric in the two-way that video flowing switching device shifter 740 receives specifically for preservation or the above video flowing of two-way; Then while switching to alternative videos stream from current video stream, with the decoding parametric in the video flowing label of the decoding parametric replacement current video stream in the video flowing label of alternative videos stream; Moreover, send video flowing label after described replacement decoding parametric to the client 760 that comprises video player; Finally, after sending the video flowing label of replacing after decoding parametric, also send data to be played in described alternative videos stream to the client 760 that comprises video player.
Those skilled in the art easily full of beard and, it can also be that the video flowing that embodiment tetra-, embodiment five or embodiment six provide provides server that above-mentioned video flowing provides server 720.
In sum, the audio/video player system that the embodiment of the present invention provides, replace the decoding parametric in the video flowing label in current video stream by making the utilization of video flowing switching device shifter, make the video player decoding parametric of can automatically resetting, having solved existing video flowing changing method reconnects server and easily produces the problem of interruption, reach and saved existing video flowing changing method in the time that two video flowings switch, direct broadcast server need to disconnect corresponding to the network of current video stream and connecting, again set up again corresponding to the network of alternative videos stream and connect, and need to again read the spent more time of related data (such as header file) of alternative videos stream, reach without re-establishing connection, two video data streams just can seamless switching, the video data stream that particularly two decoding parametrics are not identical can seamless switching effect.
It should be noted that: the video flowing switching device shifter that above-described embodiment provides is in the time that Switch Video flows, only be illustrated with the division of above-mentioned each functional module, in practical application, can above-mentioned functions be distributed and completed by different functional modules as required, be divided into different functional modules by the internal structure of equipment, to complete all or part of function described above.In addition, the video flowing switching device shifter that above-described embodiment provides and video flowing changing method embodiment belong to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can carry out the hardware that instruction is relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (11)
1. a video flowing changing method, is characterized in that, described method comprises:
The video flowing label that comprises decoding parametric in the above video flowing of the two-way that preservation receives or two-way;
Switch to alternative videos when stream from current video stream, replace the decoding parametric in the video flowing label that described current video flows with the decoding parametric in the video flowing label of described alternative videos stream;
Described in transmission, be replaced video flowing label after decoding parametric to video player;
Send data to be played in described alternative videos stream to described video player.
2. video flowing changing method according to claim 1, is characterized in that, the decoding parametric in the video flowing label of the described alternative videos of described use stream also comprises before replacing the decoding parametric in the video flowing label of described current video stream:
Judge that whether the decoding parametric in the video flowing label of decoding parametric in the video flowing label of described alternative videos stream and described current video stream is identical;
If identical, directly carry out data to be played in the described alternative videos of the described transmission stream step to described video player;
If not identical, to carry out decoding parametric in the video flowing label of the described alternative videos of described use stream and replace the decoding parametric in the video flowing label of described current video stream step.
3. video flowing changing method according to claim 1 and 2, is characterized in that, the data to be played in the described alternative videos stream of described transmission, to before described video player, also comprise:
Preserve in described current video stream and be switched last timestamp in front institute played data;
Data to be played in the described alternative videos stream of described transmission are to described video player, and correspondence comprises:
Revise all timestamps in the data to be played in described alternative videos stream, make amended timestamp all be greater than last timestamp of described preservation;
Data to be played after modification time stamp are sent to described video player.
4. video flowing changing method according to claim 1 and 2, is characterized in that, described switch to alternative videos stream from current video stream before, also comprise:
Obtain the transmission rate of leading to described video encoder;
Judge whether to switch to alternative videos stream from current video stream according to described transmission rate;
If so, carry out the described step that switches to alternative videos stream from current video stream.
5. video flowing changing method according to claim 4, is characterized in that, describedly judges whether to switch to alternative videos stream from current video stream according to described transmission rate, specifically comprises:
Detect described transmission rate and whether be greater than the first predetermined threshold;
Be greater than the first predetermined threshold if detect, switch to described alternative videos stream from described current video stream, the code check of described alternative videos stream is greater than the code check of described current video stream;
And/or,
Detect described transmission rate and whether be less than the second predetermined threshold;
Be less than the second predetermined threshold if detect, switch to described alternative videos stream from described current video stream, the code check of described alternative videos stream is less than the code check of described current video stream.
6. a video flowing switching device shifter, is characterized in that, described device comprises:
Label is preserved module, the video flowing label that comprises decoding parametric for preserving the two-way that receives or the above video flowing of two-way;
Parameter replacement module, for switch to alternative videos when stream from current video stream, replaces the decoding parametric in the video flowing label that described current video flows with the decoding parametric in the video flowing label of described alternative videos stream;
Parameter sending module, for being replaced video flowing label after decoding parametric described in sending to video player;
Data transmission blocks, for the data to be played that send described alternative videos stream to described video player.
7. video flowing switching device shifter according to claim 6, is characterized in that, described video flowing switching device shifter, also comprises:
Parameter judge module;
Whether described parameter judge module is identical for judging the decoding parametric in the decoding parametric of video flowing label and the video flowing label of described current video stream that described alternative videos flows;
Described data transmission blocks, if be also identical for the judged result of described parameter judge module, directly carries out data to be played in the described alternative videos of the described transmission stream step to described video player;
Described parameter sending module, if specifically for the judged result of described parameter judge module for not identical, the step of carrying out decoding parametric in the video flowing label of the described alternative videos stream of described use and replacing the decoding parametric in the video flowing label of described current video stream.
8. according to the video flowing switching device shifter described in claim 6 or 7, it is characterized in that, described video flowing switching device shifter, also comprises:
Time is preserved module;
The described time is preserved module, is switched last timestamp in front institute played data for preserving described current video stream;
Described data transmission blocks, correspondence comprises:
Time modification unit and data transmission unit;
Described time modification unit, for revising all timestamps in the data to be played of described alternative videos stream, makes amended timestamp all be greater than last timestamp of described preservation;
Described data transmission unit, for sending to described video player by the data to be played after modification time stamp.
9. according to the video flowing switching device shifter described in claim 6 or 7, it is characterized in that, described video flowing switching device shifter, also comprises:
Speed acquisition module and switching judging module;
Described speed acquisition module, for obtaining the transmission rate of leading to described video encoder;
Described switching judging module, need to switch to alternative videos stream from current video stream for judging whether according to described transmission rate;
Described parameter modification module, if be yes for the judged result of described switching judging module, carries out the described step that switches to alternative videos stream from current video stream.
10. video flowing switching device shifter according to claim 9, is characterized in that, described switching judging module, specifically for:
Detect described transmission rate and whether be greater than the first predetermined threshold; Be greater than the first predetermined threshold if detect, need to switch to described alternative videos stream from described current video stream, the code check of described alternative videos stream is greater than the code check of described current video stream;
And/or,
Detect described transmission rate and whether be less than the second predetermined threshold; Be less than the second predetermined threshold if detect, need to switch to described alternative videos stream from described current video stream, the code check of described alternative videos stream is less than the code check of described current video stream.
11. 1 kinds of audio/video player systems, is characterized in that, described system comprises: at least two clients that video flowing provides server, video flowing switching device shifter and comprises video player;
Described video flowing switching device shifter is the video flowing switching device shifter as described in as arbitrary in claim 6 to 10.
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Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104159079A (en) * | 2014-08-13 | 2014-11-19 | 上海航天电子通讯设备研究所 | Image real-time decoding display method |
| CN104486685A (en) * | 2014-11-14 | 2015-04-01 | 广州华多网络科技有限公司 | Control method, device and system of media streams |
| CN105245920A (en) * | 2015-10-08 | 2016-01-13 | 无锡天脉聚源传媒科技有限公司 | Multi-channel video transmission method and device |
| CN105430456A (en) * | 2015-11-13 | 2016-03-23 | 播思通讯技术（北京）有限公司 | Wireless mapping video playing method |
| CN105657448A (en) * | 2014-11-24 | 2016-06-08 | 科腾科技(北京)有限公司 | Method, device and system for forwarding encoded video streams |
| CN106028061A (en) * | 2016-06-21 | 2016-10-12 | 天脉聚源(北京)传媒科技有限公司 | Method and device for switching video formats in video playing |
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| CN111479164A (en) * | 2019-01-23 | 2020-07-31 | 上海哔哩哔哩科技有限公司 | Hardware decoding dynamic resolution seamless switching method and device and storage medium |
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| WO2022228013A1 (en) * | 2021-04-30 | 2022-11-03 | 华为技术有限公司 | Audio projection method, and computer-readable storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101835029A (en) * | 2010-04-21 | 2010-09-15 | 深圳市紫云鑫软件技术有限公司 | Control method, system and client for playing streaming media |
| CN101938628A (en) * | 2009-06-29 | 2011-01-05 | 未序网络科技（上海）有限公司 | Internet live broadcast signal dynamic switching method |
| CN102143130A (en) * | 2010-06-30 | 2011-08-03 | 华为技术有限公司 | Method, device and system for acquiring key information in rapid channel switching |
| CN102148812A (en) * | 2010-09-02 | 2011-08-10 | 华为技术有限公司 | Method, server and system for realizing server side playlist |
| CN102149005A (en) * | 2011-04-29 | 2011-08-10 | 四川长虹电器股份有限公司 | Self-adaptive method for controlling network video quality |
| US20110302605A1 (en) * | 2003-10-24 | 2011-12-08 | Qualcomm Incorporated | Method and apparatus for seamlessly switching reception between multimedia streams in a wireless communication system |
-
2012
- 2012-11-28 CN CN201210495363.8A patent/CN103856806B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110302605A1 (en) * | 2003-10-24 | 2011-12-08 | Qualcomm Incorporated | Method and apparatus for seamlessly switching reception between multimedia streams in a wireless communication system |
| CN101938628A (en) * | 2009-06-29 | 2011-01-05 | 未序网络科技（上海）有限公司 | Internet live broadcast signal dynamic switching method |
| CN101835029A (en) * | 2010-04-21 | 2010-09-15 | 深圳市紫云鑫软件技术有限公司 | Control method, system and client for playing streaming media |
| CN102143130A (en) * | 2010-06-30 | 2011-08-03 | 华为技术有限公司 | Method, device and system for acquiring key information in rapid channel switching |
| CN102148812A (en) * | 2010-09-02 | 2011-08-10 | 华为技术有限公司 | Method, server and system for realizing server side playlist |
| CN102149005A (en) * | 2011-04-29 | 2011-08-10 | 四川长虹电器股份有限公司 | Self-adaptive method for controlling network video quality |
Cited By (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104159079A (en) * | 2014-08-13 | 2014-11-19 | 上海航天电子通讯设备研究所 | Image real-time decoding display method |
| CN104159079B (en) * | 2014-08-13 | 2018-01-30 | 上海航天电子通讯设备研究所 | A kind of image real-time decoding display methods |
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| CN107223316A (en) * | 2014-12-14 | 2017-09-29 | 深圳市大疆创新科技有限公司 | System and method for supporting selectivity backtracking data recording |
| CN107223316B (en) * | 2014-12-14 | 2020-04-17 | 深圳市大疆创新科技有限公司 | System and method for supporting selective backtracking data recording |
| US11095847B2 (en) | 2014-12-14 | 2021-08-17 | SZ DJI Technology Co., Ltd. | Methods and systems of video processing |
| US10567700B2 (en) | 2014-12-14 | 2020-02-18 | SZ DJI Technology Co., Ltd. | Methods and systems of video processing |
| US10284808B2 (en) | 2014-12-14 | 2019-05-07 | SZ DJI Technology Co., Ltd. | System and method for supporting selective backtracking data recording |
| US10771734B2 (en) | 2014-12-14 | 2020-09-08 | SZ DJI Technology Co., Ltd. | System and method for supporting selective backtracking data recording |
| US20180227539A1 (en) | 2014-12-14 | 2018-08-09 | SZ DJI Technology Co., Ltd. | System and method for supporting selective backtracking data recording |
| CN106331835A (en) * | 2015-06-26 | 2017-01-11 | 成都鼎桥通信技术有限公司 | Method of dynamically adjusting data reception cache and video decoding device |
| CN106331835B (en) * | 2015-06-26 | 2019-06-07 | 成都鼎桥通信技术有限公司 | A kind of dynamic adjusting data receives the method and video decoding apparatus of caching |
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| CN105245920A (en) * | 2015-10-08 | 2016-01-13 | 无锡天脉聚源传媒科技有限公司 | Multi-channel video transmission method and device |
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| CN108449650A (en) * | 2018-04-09 | 2018-08-24 | 四川百视通科技有限公司 | A kind of RTMP live streaming flows to HTTP FLV live TV streams real time conversion systems and its working method |
| CN109005418A (en) * | 2018-08-13 | 2018-12-14 | 湖南快乐阳光互动娱乐传媒有限公司 | A kind of live signal source is noninductive method for handover control and control system |
| CN111479164A (en) * | 2019-01-23 | 2020-07-31 | 上海哔哩哔哩科技有限公司 | Hardware decoding dynamic resolution seamless switching method and device and storage medium |
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