CN104080014A - Real-time video processing method and device - Google Patents
Real-time video processing method and device Download PDFInfo
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Abstract
The invention discloses a real-time video processing method and device. The method comprises the following steps: acquiring real time video data through a video acquisition device connected with the real-time video processing device, and coding real-time video data to generate a video streaming file; dividing the video streaming file into a plurality of video steaming segments according to stipulated time slices; receiving a video processing request sent by a browser of the client side, wherein the video processing request comprises a video ID and the starting position of video preview or play corresponding to the video data; responding to the video processing request, and establishing two or more video push channels communicated with the browser at the client side; pushing the video streaming segments to the browser of the client side in an alternating mode through the two or more video push channels. The real-time video processing method and device have the advantages that the two or more video pushing channels are arranged between a server and the Web client side, and the video streaming segments formed by dividing the real-time video data are pushed in the alternating mode, so that when the browser at the Web client side plays the video streaming segments, the video streaming segments are not influenced by parsing time, and play is smooth.
Description
Technical field
The present invention relates to technical field of video processing, relate in particular to a kind of real-time video processing method and device.
Background technology
Along with the networking of video monitoring, use Web client to form inevitable development trend as video monitoring interactive interface.And in prior art, conventionally make user datagram protocol UDP (User Datagram Protocol) carry out the transmission of audio-video document, therefore Web client can only for example, realize the broadcasting of audio-video document by card format (Adobe flash plug-in unit) is installed, or after Web client is installed specific software, play audio-video document or the real time video data from server request, this is very restricted video surveillance network.For example as user, utilize outside the monitor video of non-personal computer preview or the company of broadcasting, specific software must be first installed on this computer.
Along with the release of HTML5 standard, this phenomenon is changed.Adopt after the technology of HTML5, browser can not rely on external plug-in and realize audio frequency and video Broadcast Control, vector graphics drafting, local information preservation inquiry etc.But, because HTML5 standard itself is not supported streaming media, in order to make played audio frequency and video look like " real-time ", " continuous ", audio-video source need to be divided into a plurality of file video segments when playing, and the continuous Web client that is pushed to, browser in Web client need to first be analyzed afterwards and play first video segment, then, to second video segment analysis, broadcasting, carries out successively; And being subject to the impact of the analysis time of each video segment, playing process there will be slack phenomenon in real time.
Summary of the invention
The object of this invention is to provide a kind of real-time video processing method and device, to solve the browser slack problem to real-time video preview or while playing that meets HTML5 standard in prior art in client.
The object of the invention is to be achieved through the following technical solutions:
The embodiment of the present invention provides a kind of real-time video processing method, and step is as follows:
By the video capture device being attached thereto, obtain real time video data, by the real time video data generating video stream file of encoding;
Timeslice is in accordance with regulations divided into some video flowing fragments by described video stream file;
Receive the Video processing request of the browser transmission of client, described Video processing request comprises the original position of video ID, video preview or the broadcasting corresponding with described real time video data;
Respond described Video processing request, set up at least two video push passages with the browser of described client;
By described at least two video push passages, some described video flowing fragments are alternately pushed to the browser of described client.
Preferably, timeslice is in accordance with regulations divided into described video stream file after some video flowing fragments, also comprises:
According to some described video flowing fragments, set up index file, described index file is used for searching and locates described video flowing fragment.
Preferably, respond described Video processing request, set up at least two video push passages with the browser of described client, specifically comprise:
To the browser pushing video display window of described client, described video display window calls the embedded video decoder of browser of described client;
Set up at least two video push passages with described video display window.
Preferably, by described at least two video push passages, some described video flowing fragments are alternately pushed to the browser of described client, specifically comprise:
According to described video ID, call corresponding with it described index file, and search described index file according to the original position of described preview or broadcasting, thereby locate the described video flowing fragment corresponding to original position of described preview or broadcasting;
By described at least two video push passages, by described video flowing fragment corresponding to the original position of described preview or broadcasting, started alternately to push described video flowing fragment corresponding to the original position of described preview or broadcasting and follow-up described video flowing fragment to described video display window.
Preferably, through last video channel push described video flowing fragment with through after the described timeslice of video channel time interval of pushing described video flowing fragment while being less than or equal to cutting apart of described video flowing fragment.
Preferably, described browser is Googe browser, and described video decoder is Ogg Theora, V8 or H.264; Or,
Described browser is IE9 browser, and described video decoder is for H.264; Or,
Browser is Opera, Mozilla or Chrome browser, and described video decoder is VP8.
Embodiment of the present invention beneficial effect is as follows: by server and at least two video push passages of Web client setting, alternately push and cut apart the formed video flowing fragment of real time video data, make Web client browser when displaying video flow section, be not subject to the impact of analysis time, play smooth.
The embodiment of the present invention provides a kind of real time video data processing unit, comprising:
Coding unit, obtains real time video data for the video capture device by being attached thereto, and by the real time video data generating video stream file of encoding, and described video stream file is sent to video flowing cutting unit;
Described video flowing cutting unit, the described video stream file sending for receiving described coding unit, timeslice is in accordance with regulations divided into some video flowing fragments by described video stream file;
Video processing request reception unit, the Video processing request sending for receiving the browser of client, described Video processing request comprises the original position of video ID, video preview or the broadcasting corresponding with described real time video data;
Video processing request-response unit, for responding described Video processing request, sets up at least two video push passages with the browser of described client;
Video flowing fragment push unit, for alternately pushing to some described video flowing fragments the browser of described client by described at least two video push passages.
Preferably, also comprise index file generation unit, for setting up index file according to some described video flowing fragments, described index file is used for searching and locates described video flowing fragment.
Preferably, described Video processing request-response unit, specifically for the browser pushing video display window to described client, described video display window calls the embedded video decoder of browser of described client;
And set up at least two video push passages with described video display window.
Preferably, described video flowing fragment push unit, specifically for call corresponding with it described index file according to described video ID, and search described index file according to the original position of described preview or broadcasting, thereby locate the described video flowing fragment corresponding to original position of described preview or broadcasting;
By described at least two video push passages, by described video flowing fragment corresponding to the original position of described preview or broadcasting, started alternately to push described video flowing fragment corresponding to the original position of described preview or broadcasting and follow-up described video flowing fragment to described video display window.
Embodiment of the present invention beneficial effect is as follows: by server and at least two video push passages of Web client setting, alternately push and cut apart the formed video flowing fragment of real time video data, make Web client browser when displaying video flow section, be not subject to the impact of analysis time, play smooth.
Accompanying drawing explanation
Fig. 1 is the flow chart of method described in the embodiment of the present invention one;
Fig. 2 is each time period schematic diagram that in method, real-time video is play described in the embodiment of the present invention two;
Fig. 3 is each time period schematic diagram that in method, real-time video is play described in the embodiment of the present invention three;
Fig. 4 is the structural representation of device described in the embodiment of the present invention four.
Embodiment
Below in conjunction with Figure of description, the implementation procedure of the embodiment of the present invention is elaborated.
The embodiment of the present invention one, provides a kind of real-time video processing method, and as shown in Figure 1, step is as follows:
Step S101, obtains real time video data by the video capture device being attached thereto, by the real time video data generating video stream file of encoding.
Step S102, timeslice is in accordance with regulations divided into some video flowing fragments by video stream file.
Step S103, receives the Video processing request of the browser transmission of client, and Video processing request comprises the original position of video ID, video preview or the broadcasting corresponding with real time video data.
Step S104, the request of response Video processing, sets up at least two video push passages with the browser of client.
Step S105, alternately pushes to some video flowing fragments the browser of client by least two video push passages.
Preferably, after step S102, also according to some video flowing fragments, set up index file, index file is used for searching and positioning video flow section.
Index file can be conventional in the industry m3u8 form, also can adopt comparatively privately owned index file form according to client's setting, and this does not become restriction of the present invention.
Preferably, step S104 specifically comprises: to the browser pushing video display window of client, video display window calls the embedded video decoder of browser of client; Set up at least two video push passages with video display window.
Preferably, step S105 specifically comprises: according to video ID, call corresponding with it index file, and search index file according to the original position of preview or broadcasting, thus the video flowing fragment corresponding to original position of location preview or broadcasting;
By at least two video push passages, by video flowing fragment corresponding to the original position of preview or broadcasting, started alternately to video flowing fragment corresponding to the original position of video display window propelling movement preview or broadcasting and follow-up video flowing fragment.
At this, it should be noted that, based on object of the present invention, have on the basis of at least two video push passages, we need to optimize at least two video push passages, and last video pushes away and the time interval of a rear video push passage when pushing video flow section.Preferably, the timeslice when time interval of a video channel pushing video flow section is less than or equal to cutting apart of video flowing fragment after last video channel pushing video flow Duan Yujing, actual is that this timeslice is also the reproduction time of video flowing fragment, this also means after last video channel has pushed, Web client browser is when playing the video flowing fragment of last video channel propelling movement, and the video flowing fragment that Web client browser pushes a rear video channel has the sufficient parsing time.
Problem based on browser and decoder compatibility, preferred, browser is Googe browser, video decoder is Ogg Theora, V8 or H.264; Or,
Browser is IE9 browser, and video decoder is for H.264; Or,
Browser is Opera, Mozilla or Chrome browser, and video decoder is VP8.
After it should be noted that and conventionally the coded video stream file of real time video data being cut apart by timeslice, the form of its video flowing fragment can be identical with the form of video stream file; Certainly, also can need to carry out format conversion according to different.In the present invention, because the client browser based on HTML5 has multiple, for different client browsers, the form of the video stream file that can adopt in the solution of the present invention is corresponding with client browser, along with the development of client browser technology, the form of the video stream file that it can be supported also can increase accordingly, therefore, above video stream file form, not as the present invention program's restriction, is in order to be illustrated.
Embodiment of the present invention beneficial effect is as follows: by server and at least two video push passages of Web client setting, alternately push and cut apart the formed video flowing fragment of real time video data, make Web client browser when displaying video flow section, be not subject to the impact of analysis time, play smooth.
The embodiment of the present invention two, the performance of take in the situation of two video push passages describes as example, as shown in Figure 2, at this, we think that the moment that the moment and the client browser of server end pushing video flow section resolved this video flowing fragment is synchronization, and the video flowing fragment of server push arrives client browser immediately.Certainly this is under perfect condition, also likely because network condition reason causes server push time lengthening.In order clearly to describe this process, in conjunction with the video push passage of server and client browser, the real playing process that enters is described, according to Fig. 2, we can have following understanding: t
afor time, this time t
abe the parsing time of client browser to the video flowing fragment of server push, in the ideal situation, time t
abe all the parsing time, now server channels is in non operating state; In the situation that server push video flowing fragment postpones to some extent, time t
ain some time for the propelling movement of waiting for server; t
vfor reproduction time, client browser is play the video flowing fragment that a certain video push passage (for example the first video push passage) pushes, and now this video push passage of server is in non operating state; t
dfor the stand-by period, the in fact continuity of the non operating state of this time one of them passage (for example the first video push passage) that is server, wherein, t
v=t
d+ t
a.Step is as follows:
Step 1, by the first video push passage, pushed after first video flowing fragment when server, the first video flowing fragment that corresponding the first video push passage of client browser pushes has a time t
a, i.e. the parsing time of client browser to this first video flowing fragment.
Step 2, client browser start to play this video flowing fragment.
Step 3, client browser are play in this video flowing fragment process, and server pushes second video flowing fragment by the second video push passage, and the moment of propelling movement as shown in Figure 2.
Step 4, client browser have been resolved second video flowing fragment and have been finished time t
aafter, client browser just in time plays first video flowing fragment, and client browser continues to play second video flowing fragment.Now the first video channel is carried out stand-by period t
d.
Repeat above step, complete successively the broadcasting of the propelling movement of several video segments.
The embodiment of the present invention three, the performance of take in the situation of two video push passages describes as example, as shown in Figure 3, at this, we think that the moment that the moment and the client browser of server end pushing video flow section resolved this video flowing fragment is synchronization.T wherein
afor time, t
vfor reproduction time, t
dfor the stand-by period.Step is as follows:
Step 1, by the first video push passage, pushed after first video flowing fragment when server, the first video flowing fragment that corresponding the first video push passage of client browser pushes has a time t
a, i.e. the parsing time of client browser to this first video flowing fragment.
Step 2, client browser start to play this video flowing fragment.
Step 3, client browser are play in this video flowing fragment process, and server pushes second video flowing fragment by the second video push passage, and the moment of propelling movement as shown in Figure 3.
Step 4, client browser have been resolved second video flowing fragment and have been finished time t
aafter, client browser just in time plays first video flowing fragment, and client browser continues to play second video flowing fragment.Now the first video channel is not carried out stand-by period t
d.But directly carry out time, i.e. the propelling movement of the 3rd video flowing fragment, corresponding client browser is resolved the 3rd video flowing fragment.
Repeat above step, complete successively the broadcasting of the propelling movement of several video segments.
By embodiment bis-or embodiment tri-, server replaces pushing video flow section by two video channels, makes client browser have each video flowing fragment of sufficient time resolution, does not need to wait for when playing, and has overcome the slack problem of playing.
The embodiment of the present invention four provides a kind of real time video data processing unit, as shown in Figure 4, comprising:
Coding unit 401, obtains real time video data for the video capture device by being attached thereto, and by the real time video data generating video stream file of encoding, and video stream file is sent to video flowing cutting unit;
Video flowing cutting unit 402, the video stream file sending for received code unit, timeslice is in accordance with regulations divided into some video flowing fragments by video stream file;
Video processing request reception unit 403, the Video processing request sending for receiving the browser of client, Video processing request comprises the original position of video ID, video preview or the broadcasting corresponding with real time video data;
Video processing request-response unit 404, for responding Video processing request, sets up at least two video push passages with the browser of client;
Video flowing fragment push unit 405, for alternately pushing to some video flowing fragments the browser of client by least two video push passages.
Preferably, also comprise index file generation unit 406, for setting up index file according to some video flowing fragments, index file is used for searching and positioning video flow section.
Preferably, Video processing request-response unit 404, specifically for the browser pushing video display window to client, video display window calls the embedded video decoder of browser of client;
And set up at least two video push passages with video display window.
Preferably, video flowing fragment push unit 405, specifically for call corresponding with it index file according to video ID, and searches index file according to the original position of preview or broadcasting, thus the video flowing fragment corresponding to original position of location preview or broadcasting;
By at least two video push passages, by video flowing fragment corresponding to the original position of preview or broadcasting, started alternately to video flowing fragment corresponding to the original position of video display window propelling movement preview or broadcasting and follow-up video flowing fragment.
Embodiment of the present invention beneficial effect is as follows: by, realize and passing through at server and at least two video push passages of Web client setting, alternately push and cut apart the formed video flowing fragment of real time video data, make Web client browser when displaying video flow section, be not subject to the impact of analysis time, play smooth.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a real-time video processing method, is characterized in that, step is as follows:
By the video capture device being attached thereto, obtain real time video data, by the real time video data generating video stream file of encoding;
Timeslice is in accordance with regulations divided into some video flowing fragments by described video stream file;
Receive the Video processing request of the browser transmission of client, described Video processing request comprises the original position of video ID, video preview or the broadcasting corresponding with described real time video data;
Respond described Video processing request, set up at least two video push passages with the browser of described client;
By described at least two video push passages, some described video flowing fragments are alternately pushed to the browser of described client.
2. the method for claim 1, is characterized in that, timeslice is in accordance with regulations divided into described video stream file after some video flowing fragments, also comprises:
According to some described video flowing fragments, set up index file, described index file is used for searching and locates described video flowing fragment.
3. method as claimed in claim 2, is characterized in that, responds described Video processing request, sets up at least two video push passages with the browser of described client, specifically comprises:
To the browser pushing video display window of described client, described video display window calls the embedded video decoder of browser of described client;
Set up at least two video push passages with described video display window.
4. method as claimed in claim 3, is characterized in that, by described at least two video push passages, some described video flowing fragments is alternately pushed to the browser of described client, specifically comprises:
According to described video ID, call corresponding with it described index file, and search described index file according to the original position of described preview or broadcasting, thereby locate the described video flowing fragment corresponding to original position of described preview or broadcasting;
By described at least two video push passages, by described video flowing fragment corresponding to the original position of described preview or broadcasting, started alternately to push described video flowing fragment corresponding to the original position of described preview or broadcasting and follow-up described video flowing fragment to described video display window.
5. method as claimed in claim 4, is characterized in that, through last video channel push described video flowing fragment with through after the described timeslice of video channel time interval of pushing described video flowing fragment while being less than or equal to cutting apart of described video flowing fragment.
6. the method as described in claim 3 to 5 any one, is characterized in that, described browser is Google browser, and described video decoder is Ogg Theora, V8 or H.264; Or,
Described browser is IE9 browser, and described video decoder is for H.264; Or,
Browser is Opera, Mozilla or Chrome browser, and described video decoder is VP8.
7. a real time video data processing unit, is characterized in that, comprising:
Coding unit, obtains real time video data for the video capture device by being attached thereto, and by the real time video data generating video stream file of encoding, and described video stream file is sent to video flowing cutting unit;
Described video flowing cutting unit, the described video stream file sending for receiving described coding unit, timeslice is in accordance with regulations divided into some video flowing fragments by described video stream file;
Video processing request reception unit, the Video processing request sending for receiving the browser of client, described Video processing request comprises the original position of video ID, video preview or the broadcasting corresponding with described real time video data;
Video processing request-response unit, for responding described Video processing request, sets up at least two video push passages with the browser of described client;
Video flowing fragment push unit, for alternately pushing to some described video flowing fragments the browser of described client by described at least two video push passages.
8. device as claimed in claim 7, is characterized in that, also comprises index file generation unit, and for setting up index file according to some described video flowing fragments, described index file is used for searching and locates described video flowing fragment.
9. device as claimed in claim 8, it is characterized in that, described Video processing request-response unit, specifically for the browser pushing video display window to described client, described video display window calls the embedded video decoder of browser of described client;
And set up at least two video push passages with described video display window.
10. device as claimed in claim 9, it is characterized in that, described video flowing fragment push unit, specifically for call corresponding with it described index file according to described video ID, and search described index file according to the original position of described preview or broadcasting, thereby locate the described video flowing fragment corresponding to original position of described preview or broadcasting;
By described at least two video push passages, by described video flowing fragment corresponding to the original position of described preview or broadcasting, started alternately to push described video flowing fragment corresponding to the original position of described preview or broadcasting and follow-up described video flowing fragment to described video display window.
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| CN105898625B (en) * | 2016-04-29 | 2020-03-17 | 腾讯科技（深圳）有限公司 | Playing processing method and terminal equipment |
| US10298267B2 (en) * | 2016-06-08 | 2019-05-21 | Nokia Solutions And Networks Oy | Reducing timing uncertainty |
| CN107707966A (en) * | 2016-08-08 | 2018-02-16 | 大唐软件技术股份有限公司 | A kind of playing method and device of multi-medium data |
| CN107707966B (en) * | 2016-08-08 | 2021-01-22 | 大唐软件技术股份有限公司 | Multimedia data playing method and device |
| CN109218839A (en) * | 2017-07-07 | 2019-01-15 | 杭州海康威视数字技术股份有限公司 | Video broadcasting method and device |
| CN109218839B (en) * | 2017-07-07 | 2021-09-03 | 杭州海康威视数字技术股份有限公司 | Video playing method and device |
| CN107786877A (en) * | 2017-10-20 | 2018-03-09 | 北京奇艺世纪科技有限公司 | A kind of method and apparatus of preview video |
| CN107786877B (en) * | 2017-10-20 | 2020-07-03 | 北京奇艺世纪科技有限公司 | Method and device for previewing video |
| WO2020048268A1 (en) * | 2018-09-05 | 2020-03-12 | 北京开广信息技术有限公司 | Real-time transmitting method and real-time receiving method for media stream, server, and client |
| CN113542889A (en) * | 2021-07-09 | 2021-10-22 | 珠海云迈网络科技有限公司 | List video playing method and device, computer equipment and storage medium thereof |
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