CN103491386A - Method and system for transmitting streaming media by utilizing TS package - Google Patents
Method and system for transmitting streaming media by utilizing TS package Download PDFInfo
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- CN103491386A CN103491386A CN201310430121.5A CN201310430121A CN103491386A CN 103491386 A CN103491386 A CN 103491386A CN 201310430121 A CN201310430121 A CN 201310430121A CN 103491386 A CN103491386 A CN 103491386A
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Abstract
The invention relates to a method and system for transmitting streaming media by utilizing a TS package. The method and system for transmitting the streaming media by utilizing the TS package are applied to a digital television system or an IPTV system. The method for transmitting the streaming media by utilizing the TS package comprises the steps that (1) the streaming media to be transmitted is loaded into the TS package marked with a vacant package PID number or an occupied package PID number; (2) the TS package containing the streaming media is used for replacing a TS vacant package in the digital television system or the IPTV system, and/or when a TS in the digital television system or the IPTV system needs to fill the TS vacant package, the TS package containing the streaming media is filled; (3) the TS processed in the step (2) is received, and the streaming media carried by the TS is downloaded and processed. The system for transmitting the streaming media by utilizing the TS package comprises a streaming media sending module, a streaming media processing module and a streaming media receiving module which are connected in sequence. By means of the method for sending, transmitting and receiving the streaming media through the TS package, information service of green, intensive, small-area, accurate, different, professional, refined, focusing and low-cost digital video broadcasting bandwidth shared by various parties is achieved.
Description
Technical field
The present invention relates to the areas of information technology of digital television system or IPTV system, particularly relate to a kind of method and system of the TS of utilization bag transmission, transmission and receiving stream media.
Background technology
Information service system based on digital television system or IPTV system in prior art and method fail to utilize well bandwidth resources.Therefore, can consider to fail the bandwidth resource allocation of fine utilization uses to the TS stream that is loaded with Streaming Media.Based on this thinking, the present invention proposes the method and system of a kind of TS of utilization bag transmission, transmission and receiving stream media, realizing greenization, intensive, zonule, precision, differentiation, specialization, become more meticulous, focusing, low cost, the information service of shared digital television transfer bandwidth in many ways.
Implication for the corresponding term related in the present invention is as follows:
Streaming Media (Streaming Media) is exactly the multimedia form that adopts the mode of stream transmission to play on network, comprises the message forms such as data, text, webpage, picture, audio frequency, video.
TS: i.e. Transport Stream, transport stream, it is the agreement of digital television system transport layer, TS stream is to propagate with packet form, be that it is that subpackage sends, and each Bao Changwei 188 byte, by packet header and payload (also referred to as payload), formed, packet header is 4 bytes, and payload is 184 bytes.
PID: full name is Packet Identification, i.e. " Packet Identifier ".
PES bag: the writing a Chinese character in simplified form of the primary flow that divides into groups, a kind of syntactic structure mapped directly in the TS bag.
Section: standard name is section, and a kind of syntactic structure mapped directly in the TS bag, comprise privately owned section and non-privately owned section.
Privately owned section: standard name is private_section, a kind of syntactic structure mapped directly in the TS bag.
DOCSIS: full name is Data Over Cable Service Interface Specification, i.e. " wire transmission data service interface specification ".
Digital television system: broadly saying, is exactly the total digitalization of original television system.Digital television system mainly is comprised of digital television front-end system, digital television transmission system, Digital Television distribution system, receiving terminal for digital television etc.Digital television system mainly includes line digital television system, satellite digital TV system and terrestrial digital television system.Digital Cable Television System mainly is comprised of DVB-C Head-end System, cable digital TV primary transmission network system, cable digital TV user assignment network system, cable digital TV receiving terminal etc.
In technical scheme of the present invention and embodiment, all relevant criterion that relate to can be all GB/T17975.1-2010 or ISO/IEC13818-6 or GB/T28430-2012 or DOCSIS standard etc.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method and system of the TS of utilization bag transport stream media, for solving prior art, fails to utilize well empty bag to carry out the problem of communication.
Technical scheme of the present invention comprises a kind of method of the TS of utilization bag transport stream media, and it is applied to, in digital television system or IPTV system, comprising:
Step 1, be loaded into Streaming Media waiting for transmission in the TS bag of No. PID, empty bag or No. PID sign of non-NULL bag;
Step 2, wrap the empty bag of TS in the TS stream that replaces digital television system or IPTV system with the TS that is loaded with Streaming Media, and/or, when the TS of digital television system or IPTV system stream need to be filled the empty bag of TS, fill the TS that is loaded with Streaming Media and wrap;
Step 3, receive the TS stream of processing through step 2, and download and process the Streaming Media carried on it.
Further, while in described step 1, Streaming Media waiting for transmission being loaded in the TS bag of No. PID sign of empty bag, for removing each field of PID extra in the packet header of TS bag, requirement according to the TS bag in relevant criterion, the non-NULL bag identified for No. PID is arranged, wherein whether the transport_priority field contains the sign of Streaming Media to be transmitted as the empty bag of TS, and when the transport_priority field is set to " 1 ", means to contain Streaming Media waiting for transmission in the empty bag of TS.
Further, in described step 1, Streaming Media waiting for transmission is loaded in the TS bag and specifically comprises: Streaming Media to be transmitted is loaded in TS bag payload according to relevant criterion, or Streaming Media to be transmitted is loaded in the PES bag on TS bag payload according to relevant criterion, or Streaming Media to be transmitted is loaded in privately owned section on TS bag payload according to relevant criterion.
Further, the mode that Streaming Media to be transmitted is loaded in TS bag payload according to relevant national standard comprises: directly carry Streaming Media on TS bag payload, or indirectly carry Streaming Media by other host-host protocol on TS bag payload;
The mode that Streaming Media to be transmitted is loaded in the PES bag on TS bag payload according to relevant criterion comprises: the PES on TS bag payload wraps and directly carries Streaming Media, or the PES on TS bag payload wraps by other host-host protocol and indirectly carries Streaming Media;
The mode that Streaming Media to be transmitted is loaded in privately owned section on TS bag payload according to relevant criterion comprises: directly carry Streaming Media on privately owned section on TS bag payload, or wrap on privately owned section on payload and indirectly carry Streaming Media by other host-host protocol at TS.
Further, described step 1 also comprises: the form by agreement generates corresponding Streaming Media is described or section and the descriptor of index, the section that generates and descriptor are packed in the TS bag of empty bag or No. PID sign of non-NULL bag, and will the section of being loaded with and the TS bag of descriptor with the TS bag that is loaded with Streaming Media, by treaty rule, arrange, then transfer to described step 2 and process.
Further, in described step 3, by receiving and resolve to contain, corresponding Streaming Media is described or the section of index and the TS bag of descriptor, carry out the needed Streaming Media of selective reception.
Further, the empty bag of TS replaced in the TS stream of digital television system or IPTV system with the TS bag that is loaded with Streaming Media in described step 2 specifically comprises: in any information processing link of the appointment of digital television system or IPTV system, use the TS bag that is loaded with Streaming Media to replace the empty bag of TS in TS stream.Any information processing link here comprises multiplexing link and modulation link.
Further, in described step 2 when the TS of digital television system or IPTV system stream needs to fill the empty bag of TS, the TS bag that filling is loaded with Streaming Media specifically comprises: in any information processing link of the appointment of digital television system or IPTV system, when needs are filled the empty bag of TS to TS stream, fill the TS bag that is loaded with Streaming Media.Any information processing link here comprises multiplexing link and modulation link.
Further, also be included in described step 2 on the system that meets related data access standard of transmission based on Digital Cable Television System or distribution network and replace or fill the TS bag that is loaded with Streaming Media, and adopt the combination in any of following any one mode or following each mode while based on this System Replacement or filling, being loaded with the TS bag of Streaming Media:
Mode one, before described system is modulated the TS stream that is carrying data, used the TS bag that is loaded with Streaming Media to replace the empty bag of TS in TS stream;
Mode two, before described system is modulated the TS stream that is carrying data, when needs are filled the empty bag of TS to TS stream, fill the TS bag that is loaded with Streaming Media;
Mode three, in described system, the TS stream that is carrying data being modulated, modulate while need filling the empty bag of TS TS stream, fills the TS bag that is loaded with Streaming Media;
Mode four, in described system, the TS stream that is carrying data being modulated, the empty bag of TS during the TS that uses the TS bag that is loaded with Streaming Media to replace the output of modulation link interdependent node flows.
Technical scheme of the present invention also comprises a kind of system of the TS of utilization bag transport stream media, and it is applied to, in digital television system or IPTV system, comprising:
The Streaming Media sending module, it connects described Streaming Media processing module, for Streaming Media waiting for transmission being loaded into to the TS bag of No. PID, empty bag or No. PID sign of non-NULL bag;
The Streaming Media processing module, it connects described Streaming Media sending module and described Streaming Media receiver module, for adopting the TS bag that is loaded with Streaming Media to replace the empty bag of TS of the TS stream of digital television system or IPTV system, and/or while for the TS in digital television system or IPTV system stream, needing to fill the empty bag of TS, fill the TS bag that is loaded with Streaming Media;
The Streaming Media receiver module, it connects described Streaming Media processing module, for receiving the TS stream of processing through described Streaming Media processing module, and downloads and process the Streaming Media carried on it.
Further, also include an explanation or index information generation module in described Streaming Media sending module, it generates corresponding Streaming Media is described or section and the descriptor of index for the form by agreement, the section that generates and descriptor are packed in the TS bag of empty bag or No. PID sign of non-NULL bag, and will the section of being loaded with and the TS bag of descriptor with the TS bag that is loaded with Streaming Media, by treaty rule, arrange, then transfer in the lump the Streaming Media processing module.
Further, while including explanation or index information generation module in the Streaming Media sending module, also include an explanation or index information parsing module in described Streaming Media receiver module, for by receiving and resolve to contain, corresponding Streaming Media being described or the section of index and the TS bag of descriptor, carry out the needed Streaming Media of selective reception.
For the system of utilizing TS bag transport stream media of the present invention, the concrete function of its each module and function realize that details is consistent with the above-mentioned method of utilizing TS bag transport stream media.
The invention has the beneficial effects as follows: the present invention utilizes TS bag transmission, transmission and receiving stream media, the bandwidth resources of waste had both effectively been utilized, further developed again streaming Media Technology, be conducive to realize greenization, intensive, zonule, precision, differentiation, specialization, become more meticulous, focusing, low cost, in many ways share the information service of digital television transfer bandwidth, reduced resource consumption and the operation costs of Information Service.
The accompanying drawing explanation
Fig. 1 is the schematic flow sheet that utilizes the method for TS bag transport stream media of the present invention;
Fig. 2 is the structural representation that utilizes the system of TS bag transport stream media of the present invention.
Embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, the present embodiment provides a kind of method of the TS of utilization bag transport stream media, and it is applied to, in digital television system or IPTV system, comprising:
Step 1, be loaded into Streaming Media waiting for transmission in the TS bag of No. PID, empty bag or No. PID sign of non-NULL bag;
Step 2, wrap the empty bag of TS in the TS stream that replaces digital television system or IPTV system with the TS that is loaded with Streaming Media, and/or, when the TS of digital television system or IPTV system stream need to be filled the empty bag of TS, fill the TS that is loaded with Streaming Media and wrap;
Step 3, receive the TS stream of processing through step 2, and download and process the Streaming Media carried on it.
For step 1, when it is loaded into Streaming Media waiting for transmission in the TS bag of No. PID sign of empty bag, for removing each field of PID extra in the packet header of TS bag, requirement according to the TS bag in relevant national standard (as the GB/T17975.1-2010 standard), the non-NULL bag identified for No. PID is arranged, wherein whether the transport_priority field contains the sign of Streaming Media to be transmitted as the empty bag of TS, and when the transport_priority field is set to " 1 ", means to contain Streaming Media waiting for transmission in the empty bag of TS.
In addition, in described step 1, Streaming Media waiting for transmission is loaded in the TS bag that sky wraps No. PID or the non-NULL bag identifies for No. PID to any one that adopts three kinds of modes: the one, Streaming Media to be transmitted is wrapped in payload to TS according to the GB/T17975.1-2010 standard load, for example TS wraps and directly carries mpeg file; The 2nd, during Streaming Media to be transmitted is wrapped to the PES on TS bag payload according to GB/T17975.1-2010 standard or GB/T28430-2012 standard load, for example on TS bag payload, the PES bag carries the Quicktime file; The 3rd, by Streaming Media to be transmitted according to GB/T17975.1-2010 standard or GB/T28430-2012 standard load in privately owned section on TS bag payload, for example on TS bag payload privately owned section carry Real Media file.
Wherein, Streaming Media to be transmitted is comprised to the mode in TS bag payload according to the GB/T17975.1-2010 standard load: on TS bag payload, directly carry Streaming Media, or indirectly carry Streaming Media by other host-host protocol on TS bag payload, for example on TS bag payload, carry http protocol, http protocol carries the TS file; Mode during Streaming Media to be transmitted is wrapped to the PES on TS bag payload according to GB/T17975.1-2010 standard or GB/T28430-2012 standard load comprises: the PES on TS bag payload wraps and directly carries Streaming Media, or the PES on TS bag payload wraps by other host-host protocol and indirectly carries Streaming Media, the Basic Flow (PES) of for example packing on TS bag payload carries Real-time Transport Protocol, and H.264 the RTP bag carries, the AAC audio/video flow; The mode that Streaming Media to be transmitted is wrapped in privately owned section on payload to TS according to GB/T17975.1-2010 standard or GB/T28430-2012 standard load comprises: on privately owned section on TS bag payload, directly carry Streaming Media, or wrap on privately owned section on payload and indirectly carry Streaming Media by other host-host protocol at TS, for example on TS bag payload privately owned section carry http protocol, http protocol carries the TS file.
For described step 2, its empty bag of TS replaced with the TS bag that is loaded with Streaming Media in TS stream of digital television system or IPTV system specifically comprises: in any information processing link of the appointment of digital television system or IPTV system, use the TS bag that is loaded with Streaming Media to replace the empty bag of TS in TS stream.And, in described step 2 when the TS of digital television system or IPTV system stream needs to fill the empty bag of TS, the TS bag that filling is loaded with Streaming Media specifically comprises again: in any information processing link of the appointment of digital television system or IPTV system, when needs are filled the empty bag of TS to TS stream, fill the TS bag that is loaded with Streaming Media.Here, any information processing link of the appointment of digital television system or IPTV system includes multiplexing link and modulation link.Therefore, the technical scheme of known described step 2 can be applicable to transmission network or the multiplexing link in the edge modulator on distribution network, modulation link or other any links of Digital Cable Television System.
In addition, in described step 2, can also realize by another method, replace or fill the TS bag that is loaded with Streaming Media on the system that meets related data access standard of the transmission based on Digital Cable Television System or distribution network, and adopt the combination in any of following any one mode or following each mode while based on this System Replacement or filling, being loaded with the TS bag of Streaming Media:
Mode one, before described system is modulated the TS stream that is carrying data, used the TS bag that is loaded with Streaming Media to replace the empty bag of TS in TS stream;
Mode two, before described system is modulated the TS stream that is carrying data, when needs are filled the empty bag of TS to TS stream, fill the TS bag that is loaded with Streaming Media;
Mode three, in described system, the TS stream that is carrying data being modulated, modulate while need filling the empty bag of TS TS stream, fills the TS bag that is loaded with Streaming Media;
Mode four, in described system, the TS stream that is carrying data being modulated, the empty bag of TS during the TS that uses the TS bag that is loaded with Streaming Media to replace the output of modulation link interdependent node flows.
Aforesaid way one, is realized among reaching before the modulation link of CMTS system all applicable to CMTS (Cable Modem TerminationSystem, cable modulation terminal system) to mode four.
In the present embodiment, in the concrete implementation detail of described step 1, also comprise: the form by agreement generates corresponding Streaming Media is described or section and the descriptor of index, the section that generates and descriptor are packed in the TS bag of empty bag or No. PID sign of non-NULL bag, and will the section of being loaded with and the TS bag of descriptor with the TS bag that is loaded with Streaming Media, by treaty rule, arrange, then transfer to described step 2 and process.And the TS bag that is loaded with Streaming Media in described step 2 has also comprised this type of TS bag, in described step 3, by receiving and resolve to contain, corresponding Streaming Media is described or the section of index and the TS bag of descriptor, carry out the needed Streaming Media of selective reception.
As shown in Figure 2, based on the above-mentioned method of utilizing TS bag transport stream media, the present embodiment has also proposed a kind of system of utilizing TS bag transport stream media be applied in digital television system or IPTV system, comprising:
The Streaming Media sending module, it connects described Streaming Media processing module, for Streaming Media waiting for transmission being loaded into to the TS bag of No. PID, empty bag or No. PID sign of non-NULL bag;
The Streaming Media processing module, it connects described Streaming Media sending module and described Streaming Media receiver module, for adopting the TS bag that is loaded with Streaming Media to replace the empty bag of TS of the TS stream of digital television system or IPTV system, and/or while for the TS in digital television system or IPTV system stream, needing to fill the empty bag of TS, fill the TS bag that is loaded with Streaming Media;
The Streaming Media receiver module, it connects described Streaming Media processing module, for receiving the TS stream of processing through described Streaming Media processing module, and downloads and process the Streaming Media carried on it.
In specific implementation process, can also include an explanation or index information generation module in described Streaming Media sending module, it generates corresponding Streaming Media is described or section and the descriptor of index for the form by agreement, the section that generates and descriptor are packed in the TS bag of empty bag or No. PID sign of non-NULL bag, and will the section of being loaded with and the TS bag of descriptor with the TS bag that is loaded with Streaming Media, by treaty rule, arrange, then transfer in the lump the Streaming Media processing module.And include explanation or during the index information generation module in the Streaming Media sending module, also correspondence in described Streaming Media receiver module and comprised an explanation or index information parsing module, for be loaded with the section of generation and the TS bag of descriptor by reception and parsing, and carry out the needed Streaming Media of selective reception according to analysis result.
This utilizes the system of TS bag transport stream media, and the concrete function of its each module and function realize that details is consistent with the above-mentioned method of utilizing TS bag transport stream media, can with reference in embodiment about the description of the method for utilizing TS bag transport stream media.
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 modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (11)
1. a method of utilizing TS bag transport stream media, it is applied to, in digital television system or IPTV system, it is characterized in that, comprises:
Step 1, be loaded into Streaming Media waiting for transmission in the TS bag of No. PID, empty bag or No. PID sign of non-NULL bag;
Step 2, wrap the empty bag of TS in the TS stream that replaces digital television system or IPTV system with the TS that is loaded with Streaming Media, and/or, when the TS of digital television system or IPTV system stream need to be filled the empty bag of TS, fill the TS that is loaded with Streaming Media and wrap;
Step 3, receive the TS stream of processing through step 2, and download and process the Streaming Media carried on it.
2. method according to claim 1, it is characterized in that, in described step 1, Streaming Media waiting for transmission is loaded in the TS bag and specifically comprises: Streaming Media to be transmitted is loaded in TS bag payload according to relevant criterion, or Streaming Media to be transmitted is loaded in the PES bag on TS bag payload according to relevant criterion, or Streaming Media to be transmitted is loaded in privately owned section on TS bag payload according to relevant criterion.
3. method according to claim 2, it is characterized in that, the mode that Streaming Media to be transmitted is loaded in TS bag payload according to relevant criterion comprises: directly carry Streaming Media on TS bag payload, or indirectly carry Streaming Media by other host-host protocol on TS bag payload;
The mode that Streaming Media to be transmitted is loaded in the PES bag on TS bag payload according to relevant criterion comprises: the PES on TS bag payload wraps and directly carries Streaming Media, or the PES on TS bag payload wraps by other host-host protocol and indirectly carries Streaming Media;
The mode that Streaming Media to be transmitted is loaded in privately owned section on TS bag payload according to relevant criterion comprises: directly carry Streaming Media on privately owned section on TS bag payload, or wrap on privately owned section on payload and indirectly carry Streaming Media by other host-host protocol at TS.
4. method according to claim 1, it is characterized in that, described step 1 also comprises: the form by agreement generates corresponding Streaming Media is described or section and the descriptor of index, the section that generates and descriptor are packed in the TS bag of No. PID, empty bag or No. PID sign of non-NULL bag, and will the section of being loaded with and the TS bag of descriptor with the TS bag that is loaded with Streaming Media, by treaty rule, arrange, then transfer to described step 2 and process.
5. method according to claim 4, is characterized in that, in described step 3, by receiving and resolve to contain, corresponding Streaming Media described or the section of index and the TS bag of descriptor, carrys out the needed Streaming Media of selective reception.
6. method according to claim 1, it is characterized in that, the empty bag of TS replaced in the TS stream of digital television system or IPTV system with the TS bag that is loaded with Streaming Media in described step 2 specifically comprises: in any information processing link of the appointment of digital television system or IPTV system, use the TS bag that is loaded with Streaming Media to replace the empty bag of TS in TS stream.
7. method according to claim 1, it is characterized in that, in described step 2 when the TS of digital television system or IPTV system stream needs to fill the empty bag of TS, the TS bag that filling is loaded with Streaming Media specifically comprises: in any information processing link of the appointment of digital television system or IPTV system, when needs are filled the empty bag of TS to TS stream, fill the TS bag that is loaded with Streaming Media.
8. method according to claim 1, it is characterized in that, described step 2 also is included on the system that meets related data access standard of transmission based on Digital Cable Television System or distribution network and replaces or fill the TS bag that is loaded with Streaming Media, and adopts the combination in any of following any one mode or following each mode while based on this System Replacement or filling, being loaded with the TS bag of Streaming Media:
Mode one, before described system is modulated the TS stream that is carrying data, used the TS bag that is loaded with Streaming Media to replace the empty bag of TS in TS stream;
Mode two, before described system is modulated the TS stream that is carrying data, when needs are filled the empty bag of TS to TS stream, fill the TS bag that is loaded with Streaming Media;
Mode three, in described system, the TS stream that is carrying data being modulated, modulate while need filling the empty bag of TS TS stream, fills the TS bag that is loaded with Streaming Media;
Mode four, in described system, the TS stream that is carrying data being modulated, the empty bag of TS during the TS that uses the TS bag that is loaded with Streaming Media to replace the output of modulation link interdependent node flows.
9. a system of utilizing TS bag transport stream media, it is applied to, in digital television system or IPTV system, it is characterized in that, comprises:
The Streaming Media sending module, it connects described Streaming Media processing module, for Streaming Media waiting for transmission being loaded into to the TS bag of No. PID, empty bag or No. PID sign of non-NULL bag;
The Streaming Media processing module, it connects described Streaming Media sending module and described Streaming Media receiver module, for adopting the TS bag that is loaded with Streaming Media to replace the empty bag of TS of the TS stream of digital television system or IPTV system, and/or while for the TS in digital television system or IPTV system stream, needing to fill the empty bag of TS, fill the TS bag that is loaded with Streaming Media;
The Streaming Media receiver module, it connects described Streaming Media processing module, for receiving the TS stream of processing through described Streaming Media processing module, and downloads and process the Streaming Media carried on it.
10. system according to claim 9, it is characterized in that, also include an explanation or index information generation module in described Streaming Media sending module, it generates corresponding Streaming Media is described or section and the descriptor of index for the form by agreement, the section that generates and descriptor are packed in the TS bag of empty bag or No. PID sign of non-NULL bag, and will the section of being loaded with and the TS bag of descriptor with the TS bag that is loaded with Streaming Media, by treaty rule, arrange, then transfer in the lump the Streaming Media processing module.
11. system according to claim 10, it is characterized in that, while including explanation or index information generation module in the Streaming Media sending module, also include an explanation or index information parsing module in described Streaming Media receiver module, for by receiving and resolve to contain, corresponding Streaming Media being described or the section of index and the TS bag of descriptor, carry out the needed Streaming Media of selective reception.
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| CN201310430121.5A CN103491386A (en) | 2013-09-18 | 2013-09-18 | Method and system for transmitting streaming media by utilizing TS package |
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Application publication date: 20140101 |