CN102811373A - Method for carrying out video broadcast on Internet and mobile Internet by mobile terminal - Google Patents
Method for carrying out video broadcast on Internet and mobile Internet by mobile terminal Download PDFInfo
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- CN102811373A CN102811373A CN 201110143275 CN201110143275A CN102811373A CN 102811373 A CN102811373 A CN 102811373A CN 201110143275 CN201110143275 CN 201110143275 CN 201110143275 A CN201110143275 A CN 201110143275A CN 102811373 A CN102811373 A CN 102811373A
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Abstract
The invention discloses a method for carrying out video broadcast on Internet and mobile Internet by a mobile terminal. The method comprises the following steps of: shooting and acquiring video by using the mobile terminal, coding, uploading a video stream to a stream media server through a network, receiving the video stream by the stream media server, transcoding and then storing, and receiving a multi-task playing request, wherein when the video stream is uploaded to the server, the mobile terminal always continuous shoots and acquires the video. By adopting the technology provided by the invention, the video is shot by using mobile terminals such as a smart phone, is synchronously issued to the Internet, and can be instantly observed on any one networking computer or net play mobile phone. In the process, from video shooting to video playing, the delay does not exceed 3s, under the condition of better network conditions, the delay can reach within 1s, thus the synchronization effect on the vision is achieved.
Description
Technical field
The present invention relates to a kind of method of net cast, relate in particular to a kind of portable terminal carries out net cast to the Internet and mobile Internet method.
Background technology
(this paper indication smart mobile phone of smart mobile phone in the market; Contain operation system of smart phone such as all use apple ios, google android, Windows mobile/phone, Symbian on the market; And the mobile phone product that possesses WIFI/3G online ability and camera; Usually possessed the camera that disposal ability does not wait from 300,000 pixels to 500, ten thousand pixels down together), can carry out picture photography, video camera.The smart mobile phone that dispatches from the factory generally all is furnished with directly built-in photography and vedio recording software of production firm, to realize basic photographic/camera function.
The user is after the use smart mobile phone is made a video recording; To the video content that produces; Can be transferred in computer (PC or the notebook computer) hard disk through data connecting line (or wireless connections such as bluetooth, WIFI); Carry out transcoding, compression by the image software on the computer again, and then use special network to upload software upload to the Internet.Like this, just can realize the purpose on the Internet is issued, shared to the video of mobile phone shooting.
Relatively more advanced technology, the software that then is to use some Internet video service providers to provide directly uploads to video data file on the Internet from mobile phone EMS memory, supply other user's program requests, watch or share.But the prerequisite that this function can be used is that user's production earlier accomplishes, and the video file of producing is kept in the mobile phone EMS memory again.
For example; The iphone smart mobile phone that famous U.S. Apple produces; It takes the video that produces; Be file storage with the mov form in mobile phone EMS memory, need publish on the Internet like the user, he must use email program or the youtube program in the mobile phone to upload issue.Some Internet video sharing service merchants, for example excellent cruel, potato net etc. also provide similar video file to upload software, realize similar function.
No matter be through uploading after the Computer Processing, still in smart mobile phone, directly upload, all needing 2 steps at least: the first step: production video content, and preservation; In second step, the uploaded videos data file is to specific internet address.Even a step also need be inserted in the centre: be transferred to hard disc of computer, carry out video code conversion again and handle.The operation of such 2,3 steps, although under the prior art condition, significantly reduced operation easier and complexity, but still had several problems:
1. still there is certain complexity in operating process to the user, and the user must grasp the knowledge of basic computer video file, for example file format to the compatibility of online issue, file size size to the restriction of uploading etc.As lack these ABC, and the user is complete operation smoothly, thus the demand for services that has limited the online issue of mobile video is further satisfied.
Video capture with upload, can't accomplish instant issue.Promptly in capture video, video content broadcasts on network synchronously.This point has also limited the intensity of user to the demand for services of the online issue of mobile video.
3. can't realize that mobile phone takes, (time delay is in 10 seconds) video content of watching the foreground mobile phone to take immediately on another mobile phone (no matter wherein, as long as in network coverage).
Summary of the invention
Because the above-mentioned defective of prior art, technical problem to be solved by this invention is, utilizes portable terminal capture video such as smart mobile phone synchronously to the Internet issue, and all can watch immediately at any All-China Federation of Taiwan Compatriots net computer or any Internet-enabled cell phone.In this process, from the video capture to the video, play, between time delay be no more than 3 seconds, under the good situation of network condition, can reach time delay in 1 second, reach visually the effect of " synchronously ".
For realizing above-mentioned purpose, the invention provides a kind of portable terminal to the method that the Internet and mobile Internet carry out net cast, may further comprise the steps: utilize portable terminal shooting, collecting video; And encode, through network video flowing is uploaded to streaming media server, said streaming media server receiver, video stream; And carry out storing behind the transcoding, accept the playing request of multitask simultaneously, wherein; When data flow is uploaded onto the server; Portable terminal is still continuing the shooting, collecting video, and said coding and said portable terminal shooting, collecting video carry out simultaneously, and said transcoding and said server receiver, video stream carry out simultaneously.
In preferred embodiments of the present invention, said portable terminal is a smart mobile phone, and said network is 2.5G to 3G, and said transcoding is to convert video flowing into the flash video stream format.
The present invention adopts following technology:
One, core encoder technology
H.264 be a kind of high performance video coding and decoding technology.The tissue of formulating at present video coding and decoding technology in the world has two; One is " International Telecommunication Association (ITU-T) "; H.261 the standard that its is formulated have, H.263, H.263+ wait, another is that " International Organization for Standardization " its standard of formulating has MPEG-1, MPEG-2, MPEG-4 etc.H.264 then be the common new digital video coding standard of formulating of joint video team (JVT) of organizing amalgamated consolidation by two; So it be ITU-T H.264; Be again MPEG-4 advanced video coding (the Advanced Video Coding of ISO/IEC; AVC), and it will become the 10th part of MPEG-4 standard.Therefore, no matter be MPEG-4AVC, MPEG-4Part 10, or ISO/IEC is 14496-10, all is meant H.264.
H.264 maximum advantage is to have very high data compression ratio, and under the condition of equal picture quality, compression ratio H.264 is more than 2 times of MPEG-2, is 1.5～2 times of MPEG-4.For example, if the size of original document is 88GB, become 3.5GB after the compression of employing MPEG-2 compression standard; Compression ratio is 25: 1; H.264 become 879MB after the compression standard compression and adopt, from 88GB to 879MB, compression ratio H.264 reaches surprising 102: 1.H.264 why is there there so high compression ratio? Low code check (Low Bit Rate) has play a part important and compression compared with techniques such as MPEG-2 and MPEG-4ASP, and H.264 compress technique will be saved user's download time and data traffic charge greatly.Especially what deserves to be mentioned is, H.264 when having high compression ratio, also have the smooth image of high-quality.
To sum up we can see use coded format H.264, and being highly suitable for mobile platform is to realize real-time video flowing propagation.
Two, mobile data transmission technology
Under the prior art; Radio Transmission Technologys such as GPRS/CDMA1X/EDGE can satisfy the real time communication of the video flowing of non-high definition quality basically; The infrastructure of mobile data transmission under the 3G/wifi network, is out of question especially, so also can satisfy our invention application foundation requirement fully.
Three, Video Transcoding Technology
Through the development of video industry for many years, formed multiple incompatible video file coded format mutually now, the video code model that these are incompatible is adopted by the smart mobile phone of different vendor, different model.So just needing us to develop a technology can realize to the H.264 requirement of format conversion of core encoder platform required standard various video formats.And in order to adapt to the requirement of the instant issue of mobile phone shooting, we also must realize real-time transcoding function.Could realize the real-time H.264 standard video stream that converts platform standard into of live video stream ability of different coding form like this.
Four, portable terminal solution
Portable terminal is responsible for calling the camera unit at terminal, then with the video flowing of the taking end of uploading onto the server.The terminal should be according to the code check of the real-time adjustment video flowing of the bandwidth status of network, if bandwidth conditions can improve code check well to improve effect, if the undesirable reduction code check that can be suitable of bandwidth status is to adapt to network state.Live unobstructed to guarantee.Need algorithm of between live effect and live unobstructed property, doing optimum balance of design to reach live optimum experience.
Five, server end solution
Server end mainly contains three main modular and constitutes:
1. video flowing is accepted module
The responsible video flowing that live broadcast of mobile terminal is produced, uploads is synchronously accepted in real time, can not break of video flow simultaneously, avoids the live cutout in terminal.
2. video file transcoding module
Be responsible for video file that the user is uploaded, unifiedly convert H.264 video code model that system supports and unified resolution into, and video file made an abstract cut figure.
3. Streaming Media sending module
The streaming media server module mainly is responsible for video file that keeps and live video flowed to other portable terminal, perhaps the Internet Web terminal transmission.
On the smart mobile phones such as iphone 3gs that adopt apple ios4 operating system, adopt the technology that provides among the present invention, use the WCDMA of CHINAUNICOM 3G network, after the practical operation, obtain following effect:
1. software is no more than 2 seconds from starting to the preparation shooting state.
2. only need one-touch, can get into the video capture state immediately, video stream data is issued to server synchronously, through decoding, the transcoding of server end, on the computer of All-China Federation of Taiwan Compatriots net, has watched the video content of taking through the WEB page immediately.
3. the video of watching, frame per second are at the 10-25 frame, and the screen resolution minimum is 320 * 240, and code stream is in the 60KBPS, satisfy normal viewing and Network Transmission requirement.
4. begin to take from mobile phone end, to the WEB page, the video normal play occurs, between time of delay be no more than 3 seconds, in the good area of data-signal, delay can be controlled in 1 second.
5. watch the computer terminal quantity of video playback to increase simultaneously, the usefulness of video capture end is had no effect.But the usefulness to the video playback end has certain influence, but can reduce influence, even improve usefulness through increase number of servers, raising server hardware performance, raising server network bandwidth.
Below will combine accompanying drawing that the technique effect of design of the present invention, concrete structure and generation is described further, to understand the object of the invention, characteristic and effect fully.
Description of drawings
Fig. 1 is the sketch map of one embodiment of the present of invention.
Embodiment
As shown in Figure 1, the present invention provides a kind of and the invention provides a kind of portable terminal to the method that the Internet and mobile Internet carry out net cast, may further comprise the steps: utilize camera shooting, collecting video; Original video stream is encoded through the original video stream processing module, then processed video stream is uploaded to streaming media server through transmission module on the video flowing, the video flowing in the streaming media server is accepted module receiver, video stream; Through video file transcoding module video flowing is converted into standard video stream then, and stores, after receiving playing request; Send to the network terminal through the Streaming Media sending module; Wherein, when data flow was uploaded onto the server, portable terminal was still continuing the shooting, collecting video; Coding carries out with camera shooting, collecting video simultaneously; Transcoding and streaming media server receiver, video stream carry out simultaneously, and camera is on the smart mobile phone, and the network that uses is 3G network.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area need not creative work and just can design according to the present invention make many modifications and variation.Therefore, all technical staff in the art all should be in the determined protection range by claims under this invention's idea on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. a portable terminal may further comprise the steps to the method that the Internet and mobile Internet carry out net cast: utilize portable terminal shooting, collecting video, and encode; Through network video flowing is uploaded to streaming media server; Said streaming media server receiver, video stream, and carry out storing behind the transcoding, the playing request of multitask accepted simultaneously; It is characterized in that: when video flowing was uploaded onto the server, said portable terminal was still continuing the shooting, collecting video.
2. net cast method as claimed in claim 1 is characterized in that: said coding and said portable terminal shooting, collecting video carry out simultaneously.
3. net cast method as claimed in claim 1 is characterized in that: said transcoding and said server receiver, video stream carry out simultaneously.
4. net cast method as claimed in claim 1 is characterized in that: said portable terminal is a smart mobile phone.
5. net cast method as claimed in claim 1 is characterized in that: said network is 2.5G to 3G.
6. net cast method as claimed in claim 1 is characterized in that: the client software that said portable terminal uses customizes according to said portable terminal.
7. net cast method as claimed in claim 1 is characterized in that: said transcoding is to convert video flowing into the flash video stream format.
8. one kind like each described net cast equipment of claim 1 to 7, comprises portable terminal, server end, and it is characterized in that: said portable terminal comprises transmission module on camera, original video stream processing module, the video flowing.
9. net cast equipment as claimed in claim 8 is characterized in that: said server end comprises streaming media server, the network terminal.
10. net cast equipment as claimed in claim 9 is characterized in that: said streaming media server comprises that video flowing accepts module, video file transcoding module, Streaming Media sending module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110143275 CN102811373A (en) | 2011-05-30 | 2011-05-30 | Method for carrying out video broadcast on Internet and mobile Internet by mobile terminal |
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| CN 201110143275 CN102811373A (en) | 2011-05-30 | 2011-05-30 | Method for carrying out video broadcast on Internet and mobile Internet by mobile terminal |
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| CN104301291A (en) * | 2013-07-16 | 2015-01-21 | 广州市千钧网络科技有限公司 | Live broadcasting stream compression method and device |
| CN104602008A (en) * | 2015-01-14 | 2015-05-06 | 腾讯科技（深圳）有限公司 | Video encoding method, device and system |
| CN103426336B (en) * | 2013-06-26 | 2015-09-09 | 西安科技大学 | Digitized Teaching Resources in Campus system and using method |
| CN104954812A (en) * | 2014-03-27 | 2015-09-30 | 腾讯科技（深圳）有限公司 | Video synchronized playing method, device and system |
| CN105245911A (en) * | 2015-10-10 | 2016-01-13 | 上海慧体网络科技有限公司 | Method of performing sports events video live broadcast through mobile phone APP |
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- 2011-05-30 CN CN 201110143275 patent/CN102811373A/en active Pending
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| CN103442071A (en) * | 2013-08-30 | 2013-12-11 | 华南理工大学 | Mobile phone screen content real-time sharing method |
| CN104954812A (en) * | 2014-03-27 | 2015-09-30 | 腾讯科技（深圳）有限公司 | Video synchronized playing method, device and system |
| WO2015144084A1 (en) * | 2014-03-27 | 2015-10-01 | Tencent Technology (Shenzhen) Company Limited | Video synchronous playback method, apparatus, and system |
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| CN105245911A (en) * | 2015-10-10 | 2016-01-13 | 上海慧体网络科技有限公司 | Method of performing sports events video live broadcast through mobile phone APP |
| CN105245910A (en) * | 2015-10-10 | 2016-01-13 | 上海慧体网络科技有限公司 | Method for sports match live broadcast through Wifi camera |
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| CN106028062A (en) * | 2016-06-24 | 2016-10-12 | 乐视控股（北京）有限公司 | Video application program control method and video application program control system |
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| CN108234997A (en) * | 2017-12-12 | 2018-06-29 | 北京百度网讯科技有限公司 | Time-delay measuring method, equipment, system and the computer-readable medium of live video |
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