CN1353513A - Data injection method for broadcast system integrating digital video-audio broadcast with data broadcast - Google Patents
Data injection method for broadcast system integrating digital video-audio broadcast with data broadcast Download PDFInfo
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- CN1353513A CN1353513A CN 00130366 CN00130366A CN1353513A CN 1353513 A CN1353513 A CN 1353513A CN 00130366 CN00130366 CN 00130366 CN 00130366 A CN00130366 A CN 00130366A CN 1353513 A CN1353513 A CN 1353513A
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Abstract
A data injection method for the integrated mix system of digital video-audio broadcast and data broadcast is disclosed. A multiplexer has a network socket interface for data injection and the method for injecting data packet. The network socket interface has data buffer area, channel code-rate application information, feedback control information and virtual channel. The data broadcast server is connected via the virtual channel to the multi plexer, and requests the multiplexer for bandwidth. After the multiplexer is responded to it, the data packets to be broadcast are transmitted to the multiplexer over network and then inserted into the output code stream.
Description
The present invention relates to the method that a kind of digital video-audio broadcasting and the integrated mixed seeding system data of data broadcasting inject, it belongs to the computer communication technology field.
Digital satellite and digital cable broadcast have many advantages than other radio and television, are television broadcasting one of fields of enlivening most of development at present.Digital video-frequency broadcast standard (DVB) regulation that China's digital satellite/wired broadcasting is at present deferred to: the DVB system uses cladding to use synchronization structure, and the coding standard based on motion video and related sound (ISO/IEC 13818, are called for short MPEG-2) is provided; Its business relates to TV, voice and data broadcasting (Data Broadcast).Wherein data broadcasting is meant the data service business such as stock information, website and webpage courseware for remote education and other types.
The basic function of multiplexer is with multichannel input code flow (transport stream that meets the DVB standard), generates one tunnel transport stream total, that meet the DVB standard after multiplexing.The total bitrate of its output code flow is fixed, and the data code flow of importing for each road then should satisfy: the code check summation of input code flow is less than or equal to the total bitrate of output code flow.
As everyone knows, in actual applications, the summation of input bit rate does not generally just in time equal bit rate output.In this case, according to principle of multiplexing, multiplexer will insert an amount of sky bag in its output stream, to satisfy multiplexing requirement.But,, therefore, wrap corresponding output bandwidth with sky and be actually and be wasted because empty bag is without any using value.
In digital video-audio broadcasting and the integrated mixed seeding of data broadcasting system, on the one hand, present multiplexer does not generally possess the data function of injecting, so contains a large amount of sky bags in its output code flow, thereby has wasted a part of output bandwidth; On the other hand, data are injected server and are not generally possessed multiplexed function, therefore can not fundamentally solve the waste problem of output bandwidth.
Figure 1 and Figure 2 is that existing video encoding equipment and multiplexer connected mode schematic diagram reach the structural representation by the code stream of multiplexer output; Because this multiplexer generally do not possess the data function of injecting, data are injected server and can't be connected with it and realize that data inject, thus in the code stream of its output except that effective data packets 1, also contain the sky bag 2 of some.
Main purpose of the present invention is to disclose the method for a kind of digital video-audio broadcasting and the integrated mixed seeding system data injection of data broadcasting, the sky bag replacement technology and two that the sky bag injection technique and the data of multiplexer are injected server is one, realization is injected based on the data of multiplexer, makes the output bandwidth of multiplexer be utilized.
The objective of the invention is to realize by the following technical solutions:
The method that a kind of digital video-audio broadcasting and the integrated mixed seeding system data of data broadcasting inject, it utilizes one to have the multiplexer of the general input of standard asynchronous serial, output interface, and makes this multiplexer be used for the method that web socket interface that data inject and a packet inject by one to realize sending the sky bag of packet to multiplexer output with broadcast data server to multiplexer.
This web socket interface is provided with one or more tunnel, and one or more broadcast data server connects with multiplexer by this tunnel; This web socket interface includes data buffer zone, passage code check application information and feedback control information, and it defers to transmission control protocol/IP(Internet Protocol) (ICP/IP protocol), and works in the mode based on server/client (SERVER/CLIENT).
The method that described data are injected comprises the steps:
1, broadcast data server is to multiplexer application one data transfer bandwidth;
2, multiplexer responds the data transfer bandwidth application of this broadcast data server;
3, broadcast data server sends packet to multiplexer;
4, multiplexer is added up its input bit rate, and calculates and control the sky bag quantity that injects according to its bit rate output;
5, the operation of the sky bag that multiplexer is injected replaces with and injects the datacast data bag;
6, multiplexer sends feedback control information to broadcast data server, and broadcast data server is adjusted the data traffic of its output according to this information.
The present invention is connected with broadcast data server multiplexer by the web socket interface, the sky bag injection technique of multiplexer is combined with the sky bag replacement technology that data are injected server, the packet that broadcast data server will be broadcasted sends multiplexer to by network, and be inserted in the output code flow, realized injecting, maximally utilised the output bandwidth of multiplexer based on the data of multiplexer.
The present invention is described in further detail below in conjunction with accompanying drawing and an embodiment:
Fig. 1 is the use connection diagram of existing multiplexer.
Fig. 2 is not for carrying out the output stream schematic diagram that empty bag injects.
The schematic diagram that Fig. 3 is connected with multiplexer by the web socket interface for broadcast data server.
Fig. 4 is an output stream structural representation of the present invention.
As shown in Figure 3: multiplexer is connected with video encoding equipment by the general input of standard asynchronous serial, output interface, has the web socket interface that is connected with broadcast data server simultaneously on this multiplexer, this interface is provided with one or more tunnel, and each passage can connect a data broadcasting server.
Include data buffer zone, passage code check application information and feedback control information in the web socket interface, it defers to ICP/IP protocol, and works in the mode based on server/client (SERVER/CLIENT).
When multiplexer transmitted data code flow, broadcast data server was to multiplexer application one data transfer bandwidth at the digital video-audio encoding device; Respond the application of this broadcast data server data transfer bandwidth at multiplexer after, broadcast data server sends packet to multiplexer; Multiplexer is added up its input bit rate, and according to its bit rate output calculates and control is injected sky bag quantity, the operation of the sky bag that multiplexer is injected simultaneously replaces with injects the datacast data package operation, around here, multiplexer sends feedback control information to broadcast data server, and broadcast data server is adjusted the data traffic of its output according to this information.
As Fig. 2 with shown in Figure 4: multiplexer of the present invention is owing to can be connected and realize the data function of injecting with broadcast data server, the output code flow Central Plains of multiplexer is replaced by datacast data bag 3 by the position of empty bag 2, therefore, through having only effective data packets 1 and datacast data bag 3 in the dateout code stream of replacing; The bandwidth of multiplexer has obtained effective utilization.
Claims (6)
1, the method for a kind of digital video-audio broadcasting and the integrated mixed seeding system data injection of data broadcasting, it comprises: one has the multiplexer of the general input of standard asynchronous serial, output interface, it is characterized in that: this multiplexer also includes one and is used for web socket (SOCKET) interface of data injection and the method that a packet injects.
2, the method for digital video-audio broadcasting as claimed in claim 1 and the integrated mixed seeding system data injection of data broadcasting, it is characterized in that: this web socket interface is provided with the one or more tunnel that connects with one or more broadcast data server.
3, the method for digital video-audio broadcasting as claimed in claim 1 and the integrated mixed seeding system data injection of data broadcasting, it is characterized in that: the agreement that this web socket interface is deferred to is an ICP/IP protocol.
4, digital video-audio broadcasting as claimed in claim 1 and the method that the integrated mixed seeding system data of data broadcasting injects, it is characterized in that: the working method of this web socket interface is the working method based on server/client (SERVER/CLIENT).
5, the method for digital video-audio broadcasting as claimed in claim 1 and the integrated mixed seeding system data injection of data broadcasting, it is characterized in that: this web socket interface includes data buffer zone, passage code check application information and feedback control information.
6, digital video-audio broadcasting as claimed in claim 1 and the method that the integrated mixed seeding system data of data broadcasting injects, it is characterized in that: the method that these data are injected comprises the steps:
A, broadcast data server are to multiplexer application one data transfer bandwidth;
B, multiplexer respond the data transfer bandwidth application of this broadcast data server;
C, broadcast data server send packet to multiplexer;
D, multiplexer are added up its input bit rate, and calculate and control the sky bag quantity that injects according to its bit rate output;
The operation of e, sky bag that multiplexer is injected replaces with injects the datacast data bag;
F, multiplexer send feedback control information to broadcast data server, and broadcast data server is adjusted the data traffic of its output according to this information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00130366XA CN1148020C (en) | 2000-11-02 | 2000-11-02 | Data injection method for broadcast system integrating digital video-audio broadcast with data broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00130366XA CN1148020C (en) | 2000-11-02 | 2000-11-02 | Data injection method for broadcast system integrating digital video-audio broadcast with data broadcast |
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| CN1353513A true CN1353513A (en) | 2002-06-12 |
| CN1148020C CN1148020C (en) | 2004-04-28 |
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| CNB00130366XA Expired - Fee Related CN1148020C (en) | 2000-11-02 | 2000-11-02 | Data injection method for broadcast system integrating digital video-audio broadcast with data broadcast |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100459502C (en) * | 2006-01-16 | 2009-02-04 | 北京速能数码网络技术有限公司 | Dynamic copying and sending device of asymmetric cross net section multiple path data stream |
| US7733915B2 (en) | 2003-05-01 | 2010-06-08 | Genesis Microchip Inc. | Minimizing buffer requirements in a digital video system |
| US7800623B2 (en) | 2003-09-18 | 2010-09-21 | Genesis Microchip Inc. | Bypassing pixel clock generation and CRTC circuits in a graphics controller chip |
| US7839860B2 (en) | 2003-05-01 | 2010-11-23 | Genesis Microchip Inc. | Packet based video display interface |
| US8059673B2 (en) | 2003-05-01 | 2011-11-15 | Genesis Microchip Inc. | Dynamic resource re-allocation in a packet based video display interface |
| US8068485B2 (en) | 2003-05-01 | 2011-11-29 | Genesis Microchip Inc. | Multimedia interface |
| CN101754024B (en) * | 2009-12-16 | 2012-01-11 | 中兴通讯股份有限公司 | Multiplexing device and multiplexing method |
| US8156238B2 (en) | 2009-05-13 | 2012-04-10 | Stmicroelectronics, Inc. | Wireless multimedia transport method and apparatus |
| US8204076B2 (en) | 2003-05-01 | 2012-06-19 | Genesis Microchip Inc. | Compact packet based multimedia interface |
| US8370554B2 (en) | 2009-05-18 | 2013-02-05 | Stmicroelectronics, Inc. | Operation of video source and sink with hot plug detection not asserted |
| US8385544B2 (en) | 2003-09-26 | 2013-02-26 | Genesis Microchip, Inc. | Packet based high definition high-bandwidth digital content protection |
| US8429440B2 (en) | 2009-05-13 | 2013-04-23 | Stmicroelectronics, Inc. | Flat panel display driver method and system |
| US8468285B2 (en) | 2009-05-18 | 2013-06-18 | Stmicroelectronics, Inc. | Operation of video source and sink with toggled hot plug detection |
| US8582452B2 (en) | 2009-05-18 | 2013-11-12 | Stmicroelectronics, Inc. | Data link configuration by a receiver in the absence of link training data |
| US8671234B2 (en) | 2010-05-27 | 2014-03-11 | Stmicroelectronics, Inc. | Level shifting cable adaptor and chip system for use with dual-mode multi-media device |
| US8760461B2 (en) | 2009-05-13 | 2014-06-24 | Stmicroelectronics, Inc. | Device, system, and method for wide gamut color space support |
| US8860888B2 (en) | 2009-05-13 | 2014-10-14 | Stmicroelectronics, Inc. | Method and apparatus for power saving during video blanking periods |
-
2000
- 2000-11-02 CN CNB00130366XA patent/CN1148020C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8204076B2 (en) | 2003-05-01 | 2012-06-19 | Genesis Microchip Inc. | Compact packet based multimedia interface |
| US8068485B2 (en) | 2003-05-01 | 2011-11-29 | Genesis Microchip Inc. | Multimedia interface |
| US7839860B2 (en) | 2003-05-01 | 2010-11-23 | Genesis Microchip Inc. | Packet based video display interface |
| US7733915B2 (en) | 2003-05-01 | 2010-06-08 | Genesis Microchip Inc. | Minimizing buffer requirements in a digital video system |
| US8059673B2 (en) | 2003-05-01 | 2011-11-15 | Genesis Microchip Inc. | Dynamic resource re-allocation in a packet based video display interface |
| US7800623B2 (en) | 2003-09-18 | 2010-09-21 | Genesis Microchip Inc. | Bypassing pixel clock generation and CRTC circuits in a graphics controller chip |
| US8385544B2 (en) | 2003-09-26 | 2013-02-26 | Genesis Microchip, Inc. | Packet based high definition high-bandwidth digital content protection |
| CN100459502C (en) * | 2006-01-16 | 2009-02-04 | 北京速能数码网络技术有限公司 | Dynamic copying and sending device of asymmetric cross net section multiple path data stream |
| US8156238B2 (en) | 2009-05-13 | 2012-04-10 | Stmicroelectronics, Inc. | Wireless multimedia transport method and apparatus |
| US8860888B2 (en) | 2009-05-13 | 2014-10-14 | Stmicroelectronics, Inc. | Method and apparatus for power saving during video blanking periods |
| US8429440B2 (en) | 2009-05-13 | 2013-04-23 | Stmicroelectronics, Inc. | Flat panel display driver method and system |
| US8760461B2 (en) | 2009-05-13 | 2014-06-24 | Stmicroelectronics, Inc. | Device, system, and method for wide gamut color space support |
| US8788716B2 (en) | 2009-05-13 | 2014-07-22 | Stmicroelectronics, Inc. | Wireless multimedia transport method and apparatus |
| US8370554B2 (en) | 2009-05-18 | 2013-02-05 | Stmicroelectronics, Inc. | Operation of video source and sink with hot plug detection not asserted |
| US8468285B2 (en) | 2009-05-18 | 2013-06-18 | Stmicroelectronics, Inc. | Operation of video source and sink with toggled hot plug detection |
| US8582452B2 (en) | 2009-05-18 | 2013-11-12 | Stmicroelectronics, Inc. | Data link configuration by a receiver in the absence of link training data |
| CN101754024B (en) * | 2009-12-16 | 2012-01-11 | 中兴通讯股份有限公司 | Multiplexing device and multiplexing method |
| US8671234B2 (en) | 2010-05-27 | 2014-03-11 | Stmicroelectronics, Inc. | Level shifting cable adaptor and chip system for use with dual-mode multi-media device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1148020C (en) | 2004-04-28 |
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