CN100484091C - Real-time transmission, storage and reducing device and method for video information on Internet - Google Patents
Real-time transmission, storage and reducing device and method for video information on Internet Download PDFInfo
- Publication number
- CN100484091C CN100484091C CNB2005100260508A CN200510026050A CN100484091C CN 100484091 C CN100484091 C CN 100484091C CN B2005100260508 A CNB2005100260508 A CN B2005100260508A CN 200510026050 A CN200510026050 A CN 200510026050A CN 100484091 C CN100484091 C CN 100484091C
- Authority
- CN
- China
- Prior art keywords
- video
- video information
- transceiver
- real
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention discloses a video information live transmission, storing and deacidizing method in the internet, which is characterized by the following: the video information is catched and digitalized by the video trap; the screen video information is catched by screen trap; two pathes of datas are sent to agitator and carried out normalization treatment; the calculation result is coded; the accumulator saves the coded message according to the standard video flow media file layout; the coded message is transdered in network by transceiver; the transceiver provides transmitting-receiving media information in network; the received video flow data is delivered to the video restorer and deacidized according to the video code format; the deacidized data is presented on the persent device.
Description
Technical field
The present invention relates to separate sources, different-format video information real-time Transmission, storage and reduction apparatus and the method in the Internet.
Background technology
In recent years, the technology of transmission audiovisual information is adopted by various application more and more in local area network (LAN), but for separate sources, and the video information of different-format is mixed and encode and preserve and the transmission reduction, is not also effectively solved.
Analyzing the root of this problem generation can find, in above-mentioned process, mix the video information of different-format, and encode, preserve and network in Streaming Media transmitting-receiving and reduction, satisfy the requirement of real-time simultaneously, need to integrate coding techniques, transmission technology, memory technology and former technology.
Summary of the invention
The purpose of this invention is to provide real-time Transmission, storage and reduction apparatus and the method for a kind of video information in the Internet, by several prior aries are organically integrated, to support application scenario to the real-time Transmission demand.
Real-time Transmission, storage and the reduction apparatus of a kind of video information provided by the present invention in the Internet, it is characterized in that, it comprises video grabber, screen grabber, blender, blender, memory, transceiver and video reductor, wherein: blender links to each other with video grabber, screen grabber, memory and transceiver respectively, the video reductor links to each other with transceiver: video grabber, be used for capturing video information, the digitlization source of video information is provided; Screen grabber is used to provide the real time information of seizure screen message; Blender, being used for automatically that the multi-channel video stream format of identification input is blended into is one road video stream data, and encodes; Memory is used for the video information of having encoded of input is preserved according to the files in stream media form of standard, is beneficial to other modes and utilizes; Transceiver, it comprises sending module and receiver module, is used for providing the transmitting-receiving of media information at network; The video reductor is used for video information is reduced, and presents in presenting on the device of acquiescence.
In real-time Transmission, storage and the reduction apparatus of above-mentioned video information in the Internet, blender adopts the form normalized, and is converted into predetermined form and encodes.
In real-time Transmission, storage and the reduction apparatus of above-mentioned video information in the Internet, the video information that is encoded is sent by the sending module of transceiver, comprise the header that meets Real-time Transport Protocol in its message, the emphasis territory is serial number, timestamp, to guarantee that the Streaming Media message can be according to original order by assembly unit, for to carry out the dynamic adjustment of bandwidth, provide input simultaneously, to guarantee the requirement of real-time.
In real-time Transmission, storage and the reduction apparatus of above-mentioned video information in the Internet, after reductor receives stream medium data from the receiver module of transceiver, decode and on the display device of acquiescence, present according to the form of coding.
Real-time Transmission, storage and the method for reducing of a kind of video information that the present invention also provides in the Internet, it is characterized in that: video information is caught and digitlization by video grabber, screen video information is caught by screen grabber simultaneously, two paths of data is sent to blender and is carried out normalized, the row operation of going forward side by side, the result of computing is encoded; Coded message is sent to two targets: memory and transceiver; Memory is preserved video information according to the video stream media file format of standard; In addition, coded message is transmitted in network by transceiver; The sending module of transceiver adopts the encapsulation of RTP newspaper form to the video stream media bag, gives the ICP/IP protocol stack then and handles, and send; The receiver module of transceiver parses the RTP header information from the UDP message, and gives and the transmitting terminal feedback by rtcp protocol, reaches the purpose of bandwidth control; The video stream data newspaper that receives is delivered to the video reductor, reduces according to video code model, and presents in presenting in the mechanism of acquiescence.
Adopted above-mentioned technical solution, catcher provides information source, transferring to blender mixed is predetermined form, and encode, information is afterwards given transceiver and memory respectively, transceiver is given the reduction of video reductor with information, with real-time Transmission, storage and the reduction of video information in the Internet of finishing the separate sources different-format.
Description of drawings
Fig. 1 is the modular structure schematic diagram of real-time Transmission, storage and the reduction apparatus of video information of the present invention in the Internet.
Embodiment
The present invention carries out normalized with the form of video information, and multichannel data could carry out various direct computings on this basis like this.Here the different-format of indication mainly is a resolution format, can keep relative resolution constant rate because will guarantee different source videos in calculating process, so, need in advance resolution information to be discerned, afterwards normalized.Result's resolution is not less than the resolution maximum of input video in principle, otherwise will influence the quality of video.
Then normalized multi-channel video is carried out computing, and adopt general compaction coding method coding.
For transmission link, need utilize RTP and rtcp protocol to reach the purpose of bandwidth adjustment and assurance real-time.
As everyone knows, RTP is a kind of RTP that end-to-end transmission service is provided, and is used for being supported in transmitting real-time data in single goal broadcasting and the service of multiple target radio network, and the transmission of real time data is then monitored by rtcp protocol and controls.
RTP is defined among the RFC 1889.The structure of packets of information comprises and is widely used in multimedia several territories, comprises sound program request (audio-on-demand), VOD (video on demand), Internet telephony (Internet telephony) and video conference (videoconferencing).The specification of RTP is not formulated standard to the compressed format of sound and TV, and it can be used to transmit the file of common format.For example, the TV of sound, MPEG-1 and the MPEG-2 of WAV or GSM (Global System for Mobile communications) form also can be used for transmitting sound and the TV file that proprietary format is stored.
Use the application program of Real-time Transport Protocol to operate on the RTP, and the program running of carrying out RTP is on the upper strata of UDP, purpose be for the port numbers of using UDP and check and.Shown in Figure 16-12, RTP can regard the sublayer of transport layer as.The sound and the TV data piece that are generated by multimedia application are encapsulated in the RTP packets of information, and each RTP packets of information is encapsulated in the UDP message section, and then is encapsulated in the IP packet.
(Real-time Control Protocol RTCP) also is defined among the RFC 1889 of proposition in 1996 RTCP Real-time Transport Control Protocol.Multi-media network is used RTCP and RTP are used together, and is especially more attractive in multiple target broadcasting.When from one or more transmitting terminal during to a plurality of receiving terminal broadcast sounds or TV, just during the RTP session, each participant periodically sends RTCP control information bag to every other participant, shown in Figure 16-14.RTCP is used for monitor service quality and transmit relevant participant's information.For RTP session or broadcasting, usually use single multiple target broadcast address, all RTP and the RTCP packets of information that belong to this session are all used this multiple target broadcast address, can make a distinction RTP packets of information and RTCP packets of information by using different port numbers.
As can be seen, the RTP/RTCP agreement can be reached the purpose of bandwidth adjustment, real-time Transmission effectively.But for satisfying the compatibility of protocol level, need to sacrifice computing capability, to this, the present invention just utilizes the stipulations subclass of this agreement, pays close attention to serial number and timestamp, to guarantee carrying out assembly unit and bandwidth adjustment at receiving terminal.
Below in conjunction with Fig. 1, most preferred embodiment of the present invention is elaborated.
The present invention, the device of real-time Transmission, storage and the reduction of promptly a kind of video information of separate sources different-format in the Internet, it comprises:
Blender 103, it is one road video stream data that this module can be blended into the multi-channel video stream format of discerning input automatically, and encodes.Blender adopts the form normalized, and is converted into predetermined form and encodes.The information that is encoded, the sending module of transferring to transceiver sends, comprise the header that meets Real-time Transport Protocol in the message, the emphasis territory is serial number, timestamp, to guarantee that the Streaming Media message can be according to original order by assembly unit, for to carry out the dynamic adjustment of bandwidth, provide input simultaneously, to guarantee the requirement of real-time.
Memory, this module can be preserved the video flowing of having encoded of input according to the files in stream media form of standard, be beneficial to other modes and utilize.
Flow process of the present invention is; Video information is caught and digitlization by video grabber 101, and screen video information is caught by screen grabber 102 simultaneously, and two paths of data is sent to blender 103 and carried out normalized, the row operation of going forward side by side, and the result of computing is encoded.
Coded message is sent to two targets: memory 104 and transceiver 105.
In addition, coded message is transmitted in network by transceiver 105.
1051 pairs of video stream media bags of the sending module of transceiver 105 adopt the encapsulation of RTP newspaper form, give the ICP/IP protocol stack then and handle, and send.
The receiver module 1052 of transceiver 105 parses the RTP header information from the UDP message, and gives and the transmitting terminal feedback by rtcp protocol, reaches the purpose of bandwidth control.
The video stream data newspaper that receives is delivered to video reductor 106, reduces according to video code model, and presents in presenting in the mechanism of acquiescence.
Claims (5)
1. real-time Transmission, storage and the reduction apparatus of a video information in the Internet, it is characterized in that, it comprises video grabber, screen grabber, blender, memory, transceiver and video reductor, wherein: blender links to each other with video grabber, screen grabber, memory and transceiver respectively, and the video reductor links to each other with transceiver:
Video grabber is used for capturing video information, and the digitlization source of video information is provided;
Screen grabber is used to provide the real time information of seizure screen message;
Blender, being used for automatically that the multi-channel video stream format of identification input is blended into is one road video stream data, and encodes;
Memory is used for the video information of having encoded of input is preserved according to the files in stream media form of standard, is beneficial to other modes and utilizes;
Transceiver, it comprises sending module and receiver module, is used for providing the transmitting-receiving of media information at network;
The video reductor is used for video information is reduced, and presents in presenting on the device of acquiescence.
2. real-time Transmission, storage and the reduction apparatus of video information according to claim 1 in the Internet is characterized in that: described blender adopts the form normalized, and is converted into predetermined form and encodes.
3. real-time Transmission, storage and the reduction apparatus of video information according to claim 1 and 2 in the Internet, it is characterized in that, the video information that is encoded is sent by the sending module of transceiver, comprise the header that meets Real-time Transport Protocol in its message, the emphasis territory is serial number, timestamp, can be according to original order by assembly unit, simultaneously for carrying out the dynamic adjustment of bandwidth to guarantee the Streaming Media message, provide input, to guarantee the requirement of real-time.
4. real-time Transmission, storage and the reduction apparatus of video information according to claim 1 and 2 in the Internet, it is characterized in that, after described reductor receives stream medium data from the receiver module of transceiver, decode and on the display device of acquiescence, present according to the form of coding.
5. real-time Transmission, storage and the method for reducing of a video information in the Internet is characterized in that:
Video information is caught and digitlization by video grabber, and screen video information is caught by screen grabber simultaneously, and two paths of data is sent to blender and carried out normalized, the row operation of going forward side by side, and the result of computing is encoded;
Coded message is sent to two targets: memory and transceiver;
Memory is preserved video information according to the video stream media file format of standard;
In addition, coded message is transmitted in network by transceiver;
The sending module of transceiver adopts the encapsulation of RTP newspaper form to the video stream media bag, gives the ICP/IP protocol stack then and handles, and send;
The receiver module of transceiver parses the RTP header information from the UDP message, and gives and the transmitting terminal feedback by rtcp protocol, reaches the purpose of bandwidth control;
The video stream data newspaper that receives is delivered to the video reductor, reduces according to video code model, and presents in presenting in the mechanism of acquiescence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100260508A CN100484091C (en) | 2005-05-20 | 2005-05-20 | Real-time transmission, storage and reducing device and method for video information on Internet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100260508A CN100484091C (en) | 2005-05-20 | 2005-05-20 | Real-time transmission, storage and reducing device and method for video information on Internet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1866903A CN1866903A (en) | 2006-11-22 |
| CN100484091C true CN100484091C (en) | 2009-04-29 |
Family
ID=37425792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100260508A Active CN100484091C (en) | 2005-05-20 | 2005-05-20 | Real-time transmission, storage and reducing device and method for video information on Internet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100484091C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488960B (en) * | 2009-03-04 | 2012-02-01 | 哈尔滨工程大学 | Apparatus and method for TCP protocol and data recovery based on parallel processing |
| CN101668035B (en) * | 2009-09-28 | 2012-08-22 | 中国人民解放军理工大学指挥自动化学院 | Method for recognizing various P2P-TV application video flows in real time |
| CN101668034B (en) * | 2009-09-28 | 2012-10-03 | 中国人民解放军理工大学指挥自动化学院 | Method for recognizing two voice flows of Skype in real time |
| US20140095600A1 (en) * | 2012-09-28 | 2014-04-03 | Bradford H. Needham | Multiple-device screen capture |
| CN103856808B (en) * | 2012-11-28 | 2019-05-21 | 中兴通讯股份有限公司 | Audio-video signal processing equipment, playback equipment, system and method |
-
2005
- 2005-05-20 CN CNB2005100260508A patent/CN100484091C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN1866903A (en) | 2006-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9253532B2 (en) | Two-way audio and video communication utilizing segment-based adaptive streaming techniques | |
| US7124195B2 (en) | Broadband network system configured to transport audio or video at the transport layer, and associated method | |
| US20080151885A1 (en) | On-Demand Multi-Channel Streaming Session Over Packet-Switched Networks | |
| US20030074474A1 (en) | Data distribution center and associated method | |
| CN100484091C (en) | Real-time transmission, storage and reducing device and method for video information on Internet | |
| US20030074554A1 (en) | Broadband interface unit and associated method | |
| EP1593107A2 (en) | Method for signaling client rate capacity in multimedia streaming | |
| CN102742249A (en) | Method, system and device for synchronization of media streams | |
| CN107925511A (en) | Sender side visual telephone degrades | |
| CN1402143A (en) | Flow control method based on feedback of client terminal | |
| CN100417155C (en) | Multiple mode real-time multimedia interaction system for long distance teaching | |
| US8369881B2 (en) | PTT server, PTT communication system, PTT communication method, and program | |
| US20100161823A1 (en) | A streaming service system and method for universal video access based on scalable video coding | |
| US20090210552A1 (en) | Facilitating access to IPTV content using a portable device while roaming | |
| WO2014033729A3 (en) | A system, method, and platform, for embedding video feeds captured during a surgery, with multimedia data, in real-time | |
| CN104079870A (en) | Video monitoring method and system for single-channel video and multiple-channel audio frequency | |
| CN106790005A (en) | Realize the live system and methods of low delay HLS | |
| CN100531379C (en) | Mobile terminal adapting system of streaming media | |
| CN1992936A (en) | Mobile terminal equipment with bandwidth adapting function of streaming media | |
| CN106790030B (en) | Multi-screen cooperative audio transmission server, client, system and processing method thereof | |
| CN1992937B (en) | Mobile terminal equipment with streaming media terminal adapting function | |
| CN103024681B (en) | A kind of push-to-talk method efficiently | |
| CN101087406B (en) | A method and system for instant snap of monitoring system | |
| CN100531378C (en) | Streaming media system with terminal adapting function | |
| KR100502186B1 (en) | HDTV internet broadcast service system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ABLE ELECTRICAL CO., LTD. Free format text: FORMER OWNER: SHANGHAI ZHUOYU DIGITAL TECHNOLOGIES CO., LTD. Effective date: 20120525 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120525 Address after: 200233 Shanghai City, Xuhui District No. 69 Building No. 28, Guangxi Jinglu 6 layer Patentee after: Shagnhai Zhuoyue New Digital Technology Co., Ltd. Address before: 200233, Shanghai Rainbow Road No. 65, 421, 7 Patentee before: Shanghai Zhuoyu Digital Technologies Co., Ltd. |