CN102594778A - Realizing method and system for stream media feedback - Google Patents
Realizing method and system for stream media feedback Download PDFInfo
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- CN102594778A CN102594778A CN2011100050596A CN201110005059A CN102594778A CN 102594778 A CN102594778 A CN 102594778A CN 2011100050596 A CN2011100050596 A CN 2011100050596A CN 201110005059 A CN201110005059 A CN 201110005059A CN 102594778 A CN102594778 A CN 102594778A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/256—NAT traversal
- H04L61/2564—NAT traversal for a higher-layer protocol, e.g. for session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/164—Adaptation or special uses of UDP protocol
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a realizing method and system for stream media feedback, wherein the method comprises the following step of sending indication information of a feedback message to a receiving end in an in-band way when the receiving end sends stream media data. By using the realizing method and system for the stream media feedback, in-band information feedback can be realized conveniently by utilizing the two-way communication capacity of a UDP (User Datagram Protocol)/IP (Internet Protocol), the system resource is saved, and the correlation processing during NAT (Network Address Translation) traversing is simplified.
Description
Technical field
The present invention relates to the stream media technology field, relate in particular to a kind of implementation method and system of Streaming Media feedback.
Background technology
Along with popularizing and Development of Multimedia Technology of the Internet, the application of stream media technology also more and more widely.In the multi-medium data transmission at present; A large amount of uses MPEG-2 (Moving Pictures Experts Group; Motion Picture Experts Group) TS (Transport Stream; MPTS) code stream, for example IPTV (IPTV) business, DVB (Digital Video Broadcasting, DVB) business etc.But the MPEG-2TS initial design is come out, and is used for broadcast system, belongs to one-way communication.And during present Streaming Media uses, increasingly need between server (network equipment MANE that comprises media-aware) and terminal, use both-way communication.The relevant scenes of QoE (Quality of Experience, Quality of experience) such as for example dynamic bandwidth is adaptive, packet loss re-transmission all need the terminal can the certain situation of this locality be fed back to server, so that server is made relevant QoE strategy.In this case, the limitation that MPEG-2TS only supports one-way communication just very obviously, can not satisfy relevant demand.
Present common way; Be that the MPEG-2TS code stream is carried on RTP (Real-time Transport protocol; RTP) on, utilize the message feedback passage of RTCP (RTP Control Protocol, RTP Control Protocol) to realize both-way communication then.But this way is bound MPEG-2 TS and RTP, need on the basis of MPEG-2 TS, remake a RTP encapsulation, has reduced the transmission and the treatment effeciency of system.And also defined multiple RTP standard (profile) in the relevant criterion of IETF, and the RTP/AVP profile of RFC3551 definition for example, RFC4585 has defined RTP/AVPF profile.Different RTCP type of message that profile supported and form are all different.Any profile of concrete use, server normally pass through SDP out-band methods such as (Session Description Protocol, Session Description Protocols) notice terminal.In addition, RTCP belongs to the band external feedback, also has the place of many inconveniences in actual the use, and for example Firewall Traversing needs respectively RTP passage and RTCP passage to be handled.In the RTCP use, also there is many-sided restrictions such as sending frequency, occupied bandwidth.
Summary of the invention
The technical problem that the present invention will solve is exactly implementation method and the system that proposes a kind of Streaming Media feedback, to overcome the defective that prior art uses band external feedback mode to be caused.
In order to address the above problem, the present invention provides a kind of implementation method of Streaming Media feedback, comprising:
When transmitting terminal sends stream medium data, the indication information of feedback message is sent to receiving terminal through in-band method.
Preferably, said method has following characteristics:
Said transmitting terminal sends to said receiving terminal with the indication information of said feedback message through feedback Indication message bag; Perhaps, through said indication information is carried in the media data packet, send to said receiving terminal.
Preferably, said method has following characteristics:
The indication information of said feedback message comprises the identification information that feeds back standard.
Preferably, said method has following characteristics:
The indication information of said feedback message also comprises the identification information of feedback message.
Preferably, said method has following characteristics:
After said receiving terminal receives the indication information of said feedback message, when the informational needs feedback is arranged,, generate feedback message, send said feedback message to said transmitting terminal through in-band method according to said feedback standard.
In order to address the above problem, the present invention provides a kind of realization system of Streaming Media feedback, comprises transmitting terminal and receiving terminal, wherein,
When said transmitting terminal is used to send stream medium data, the indication information of feedback message is sent to receiving terminal through in-band method;
Said receiving terminal is used for the stream medium data of receiving end/sending end transmission and the indication information of feedback message.
Preferably, said system has following characteristics:
Said transmitting terminal is further used for the indication information of said feedback message is sent to said receiving terminal through feedback Indication message bag; Perhaps, through said indication information is carried in the media data packet, send to said receiving terminal.
Preferably, said system has following characteristics:
The indication information of said feedback message comprises the identification information that feeds back standard.
Preferably, said system has following characteristics:
The indication information of said feedback message also comprises the identification information of feedback message.
Preferably, said system has following characteristics:
After said receiving terminal is further used for receiving the indication information of said feedback message, when the informational needs feedback is arranged,, generate feedback message, send said feedback message to said transmitting terminal through in-band method according to said feedback standard.
Adopt the present invention, can utilize the both-way communication ability of UDP (User Datagram Protocol, User Datagram Protocol)/IP easily, realize the in-band message feedback.Avoided under the RTP situation,, all need create the way of RTP and two passages of RTCP simultaneously, saved system resource, simplified the relevant treatment of NAT (Network Address Translation, network address translation) when passing through every road rtp streaming.And; As long as the terminal can receive the medium code stream; Just can get access to information such as feedback system that server supports and type; Avoided to obtain this information institute trouble caused through out-band method under RTSP (Real Time Streaming Protocol, the real time streaming transport protocol) mode.
Description of drawings
The UDP/IP of Fig. 1 embodiment of the invention carries out the sketch map of in-band message feedback.
Fig. 2 is the flow chart of implementation method of the Streaming Media feedback of the embodiment of the invention.
Fig. 3 is the sketch map of the indication information that in media data packet, carries feedback message of the embodiment of the invention.
Fig. 4 is the sketch map that the same transmission channel of the use of the embodiment of the invention is sent media data packet and feedback Indication message bag.
Fig. 5 is an application scenarios sketch map of applying examples of the present invention.
Embodiment
Hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
Basic thought of the present invention utilizes the two-way communications capabilities of the Internet exactly, utilizes same UDP/IP transmission channel, realizes the feedback information in the band.Transmitting terminal is notified receiving terminal through in code stream, increasing relevant information, and feedback message type and form that system supported activate receiving terminal and start the corresponding feedback function, and be as shown in Figure 1.
As shown in Figure 2, the embodiment of the invention comprises the steps:
When step 201, transmitting terminal are sent stream medium data, the indication information of feedback message is sent to receiving terminal through in-band method.
The indication information of said feedback message can comprise the identification information that feeds back standard, can also comprise the identification information of feedback message.
Wherein, The identification information of feedback standard is used to the feedback standard of explaining that transmitting terminal (server) is supported; The identification information of feedback message is used for explaining that how discerning certain packet is feedback message; Be receiving terminal when transmitting terminal sends feedback message, also carry this identification information in this message, so that receiving terminal identification.
The feedback standard that definable is different is similar to different RTP profile.Different standards can be supported different type of messages, and the message format of definable oneself has oneself unique identification.
Transmitting terminal can (increase modes such as extended field) through said indication information being carried in the media data packet in the medium bag; Send to said receiving terminal (as shown in Figure 3), also can the indication information of said feedback message be sent to said receiving terminal (as shown in Figure 4) through feedback Indication message bag (defining specific data packet format).
In this step, transmitting terminal is when sending stream medium data, and according to aforesaid way, the indication information with feedback signaling sends through the streaming media data transmission passage simultaneously.
After step 202, receiving terminal receive the indication information of said feedback message, when the informational needs feedback is arranged,, generate feedback message, send said feedback message to said transmitting terminal through in-band method according to said feedback standard.
The identification information of the said feedback message of portability is a feedback message to inform this message of transmitting terminal in the feedback message that receiving terminal sends.
For the receiving terminal of not supporting the respective feedback standard, can ignore this information, not activation feedback mechanism;
Further specify the present invention with a concrete applying examples below.
Should be with being exemplified as the both-way communication method of utilizing MPEG-2TS to realize feedback mechanism.Adopt following technical scheme, MPEG-2TS expanded:
In PMT (Program Map Table, Program Map Table), increase the fb_profile_descriptor (feedback specification description symbol) of a program level, define as follows:
Wherein descriptor_tag=127 shows that this descriptor is fec_signal_descriptor (a feedback signal descriptor).The implication of other each fields is following:
Identifier---show the feedback standard that is adopted, for example when for ascii character " ZFBP ", form that shows feedback message etc. is followed the relevant regulations in the present embodiment.
Increase a stream_type (stream type) value; Be used for identification feedback stream, when for example the stream_type value was 0xFE, expression had corresponding PID (Packet Identifier; Packet identifier) ES of value (Elementary Stream, basic stream) stream is feedback flow;
Increase the formal definition of feedback message.For example when the identifier value among the fb_profile_descriptor was ascii character " ZFBP ", the formal definition of feedback message was following:
Wherein the implication of each field is following:
Table_id (table sign)---being used to identify this section type is fb__message_section (feedback message section), and value is 0xF0;
Section_syntax_indicator (section sentence structure identifier)---value is 0, and implication is referring in the MPEG-2TS standard " ISO/IEC 13818-1:2007 ", about the related definition of private_section (privately owned section);
Private_indicator (privately owned identifier)---value is 0;
Private_section_length (privately owned segment length)---among the fb_message_section, the data length after the private_section_length field;
Protocol_version---protocol number, value are 0.If in the future message format, parameter etc. is had modification, then can identify through different protocol_version values is set;
Message_length---refer to the length of message, i.e. the specific_message_data part;
Message_type---different value shows different type of messages, for example message of the message of feedback network situation, feedback terminal buffer status etc.Different type of messages has different data structures, and promptly the specific_message_data part can define different forms according to the difference of message_type value;
Descriptor_loop_length (descriptor length of the cycle)---refer to the data length of message_descriptor () tabulation;
Message_descriptor (message semantic definition symbol)---be used for the needs of autgmentability, for example the message of some type possibly have some optional parameters, can provide through dissimilar the message_descriptor () structure of definition so;
CRC_32---be used for verification being provided, referring to the related definition in the MPEG-2TS standard to data.
Fig. 5 utilizes the MPEG-2TS of above-mentioned expansion to make the application scenarios of signaling feedback, and wherein all equipment is all supported to use in the example expansion to MPEG-2TS.
At first equipment such as encoder or higher level's server carries out multicast/broadcast with the live code stream of MPEG-2TS that has increased the feedback message expansion through the internet.The identification information (is ascii character " ZFBP " such as identifier) of the live code stream portability feedback of this MPEG-2TS standard and the identification information (is " 0xFE " pairing pid value such as the stream_type value) of feedback message.
The forwarding unit at edge, for example server or forwarding unit that can perceptible medium, receive this multicast code stream after, again it is transmitted to the terminal.
The terminal is according to the feedback standard (such as " ZFBP " corresponding feedback standard) of appointment in the TS code stream; The structure feedback message (is the value of the PID field in the corresponding TS head; Need be appointment among the PMT, the stream_type value be the pid value of " 0xFE ") send to the edge forwarding unit.After edge device is received the feedback at terminal, handle by relevant strategy.For example can institute's transmitted stream be adjusted, to adapt to the network condition at terminal according to the network condition of terminal feedback.Such as; If SVC is (Scalable Video Coding; Scalable video coding) code stream, so for the poor terminal of network condition, edge device can only be transmitted the data of basic layer; And, then can transmit the data of basic layer and enhancement layer simultaneously for the reasonable terminal of network condition.
Correspondingly, the realization system of the Streaming Media of embodiment of the invention feedback comprises transmitting terminal and receiving terminal, wherein,
When said transmitting terminal is used to send stream medium data, the indication information of feedback message is sent to receiving terminal through in-band method;
Said receiving terminal is used for the stream medium data of receiving end/sending end transmission and the indication information of feedback message.
Said transmitting terminal can be further used for the indication information of said feedback message is sent to said receiving terminal through feedback Indication message bag; Perhaps, through said indication information is carried in the media data packet, send to said receiving terminal.
After said receiving terminal can be further used for receiving the indication information of said feedback message, when the informational needs feedback is arranged,, generate feedback message, send said feedback message to said transmitting terminal through in-band method according to the feedback standard.
In sum, the invention provides in a kind of streaming media service, utilize the both-way communication ability of the Internet, realize the method and system of band internal feedback.Be transmitting terminal in the transfer medium code stream, signaling feedback system and type that transmitting terminal is supported through in-band method notice receiving terminal, trigger receiving terminal and carry out the in-band signalling feedback.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize, correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the implementation method of Streaming Media feedback comprises:
When transmitting terminal sends stream medium data, the indication information of feedback message is sent to receiving terminal through in-band method.
2. the method for claim 1 is characterized in that,
Said transmitting terminal sends to said receiving terminal with the indication information of said feedback message through feedback Indication message bag; Perhaps, through said indication information is carried in the media data packet, send to said receiving terminal.
3. according to claim 1 or claim 2 method is characterized in that,
The indication information of said feedback message comprises the identification information that feeds back standard.
4. method as claimed in claim 3 is characterized in that,
The indication information of said feedback message also comprises the identification information of feedback message.
5. method as claimed in claim 3 is characterized in that,
After said receiving terminal receives the indication information of said feedback message, when the informational needs feedback is arranged,, generate feedback message, send said feedback message to said transmitting terminal through in-band method according to said feedback standard.
6. the realization system of a Streaming Media feedback is characterized in that, comprises transmitting terminal and receiving terminal, wherein,
When said transmitting terminal is used to send stream medium data, the indication information of feedback message is sent to receiving terminal through in-band method;
Said receiving terminal is used for the stream medium data of receiving end/sending end transmission and the indication information of feedback message.
7. system as claimed in claim 6 is characterized in that,
Said transmitting terminal is further used for the indication information of said feedback message is sent to said receiving terminal through feedback Indication message bag; Perhaps, through said indication information is carried in the media data packet, send to said receiving terminal.
8. like claim 6 or 7 described systems, it is characterized in that,
The indication information of said feedback message comprises the identification information that feeds back standard.
9. system as claimed in claim 8 is characterized in that,
The indication information of said feedback message also comprises the identification information of feedback message.
10. like claim 6 or 7 described systems, it is characterized in that,
After said receiving terminal is further used for receiving the indication information of said feedback message, when the informational needs feedback is arranged,, generate feedback message, send said feedback message to said transmitting terminal through in-band method according to said feedback standard.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100050596A CN102594778A (en) | 2011-01-11 | 2011-01-11 | Realizing method and system for stream media feedback |
| PCT/CN2012/070210 WO2012094996A1 (en) | 2011-01-11 | 2012-01-11 | Method, system and device for streaming media feedback |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100050596A CN102594778A (en) | 2011-01-11 | 2011-01-11 | Realizing method and system for stream media feedback |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017211154A1 (en) * | 2016-06-07 | 2017-12-14 | 中兴通讯股份有限公司 | Forward error correction feedback information transmission method, apparatus and device, and storage medium |
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- 2011-01-11 CN CN2011100050596A patent/CN102594778A/en active Pending
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| CN101361308A (en) * | 2005-12-01 | 2009-02-04 | 英特尔公司 | Wireless communication system, associated methods and data structures |
| WO2007091207A1 (en) * | 2006-02-07 | 2007-08-16 | Nokia Corporation | Providing and handling information on a state of a media stream |
| CN101166270A (en) * | 2006-10-16 | 2008-04-23 | 华为技术有限公司 | Multimedia video communication method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017211154A1 (en) * | 2016-06-07 | 2017-12-14 | 中兴通讯股份有限公司 | Forward error correction feedback information transmission method, apparatus and device, and storage medium |
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| CN107483144B (en) * | 2016-06-07 | 2021-11-23 | 中兴通讯股份有限公司 | Forward error correction feedback information transmission method and device |
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| WO2012094996A1 (en) | 2012-07-19 |
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