CN100442849C - Apparatus and method for making digital domestic network terminal capable of playing multiple-media format - Google Patents
Apparatus and method for making digital domestic network terminal capable of playing multiple-media format Download PDFInfo
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- CN100442849C CN100442849C CNB2006100346861A CN200610034686A CN100442849C CN 100442849 C CN100442849 C CN 100442849C CN B2006100346861 A CNB2006100346861 A CN B2006100346861A CN 200610034686 A CN200610034686 A CN 200610034686A CN 100442849 C CN100442849 C CN 100442849C
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Abstract
The present invention provides an apparatus and a method for making a home digital network terminal capable of playing various media formats. The apparatus is arranged between a media server and a playing terminal of the home digital network, and comprises a media flow format identification module, a media conversion decision module, a media format conversion module and a playing terminal format list. Media flow of the media server is identified by the media flow format identification module, the media flow information and the playing terminal format information are compared with the media conversion decision module according to the playing terminal format list, the conversion is carried out by the media format conversion module, and therefore, the playing terminal can play various media flow formats.
Description
Technical field
The invention belongs to digital home network technical field and technical field of computer multimedia, particularly relate to a kind of device and method that makes playback terminal can play multiple media formats.
Technical background
Along with computer technology and development of internet technology, various digitized multimedia information source emerge in multitudes, such as: streamed multimedia audio frequency and video source that music, Internet Web broadcast, the mode Network Based of a large amount of MP3 format transmits.Multimedia application on the network has represented the information interchange scene of a very attractive for people, people can pass through network inquiry audio frequency, video data widely, appreciate up-to-date film, kith and kin by a video telephone and a distant place exchange, set up the TV station of oneself on the net, can also set up network monitoring system, implement remote monitoring.Along with the continuous development of video compression technology and signal processing technology and networking, huge market prospects have been shown based on network audio, the Video Applications of streaming technology.
Because the introducing of digital technology is arranged, multimedia information source all is greatly improved than traditional multimedia technology on content, quality, renewal speed, simultaneously also be the general layout that the Digital Media space presents multiple standards, multiple product coexistence, for example MPEG series, different format standards such as series, JPEG series H.26X.And each equipment of existing traditional-family cinema system can not have been supported various standard fully all towards specific purposes and occasion.Thereby can't catch up with the development of information age, needing to introduce new product compensates its defect, but in order to save the cost of investment of household consumption product simultaneously, will consider that new product can combine closely with existing product, have complementary functions with existing equipment by required expanding function body formulation, in order to avoid overlapping investment causes unnecessary spending.
Therefore be necessary to invent a kind of system that makes playback terminal can play multiple media formats, this system can become the media stream format conversion that the webserver provides playback terminal can cross the form of more enough supports.Chinese patent application number is 200310100472.6, denomination of invention for the solution of " a kind of method of selecting video stream transcoding in the video gateway " is: in each service, client playing terminal and video server transmit user's service describing packet and program service data of description bag to video gateway respectively, video gateway is determined the coded format that service is required according to two packets, the video width, video height, information such as video frame rate and bit rate, change according to this information, the stream format of video server being passed to user side changes into the decodable form of user side again.Though this solution has realized the compatibility of existing playing terminal equipment and server, but rise along with digital home network, in a digital home network, usually have a plurality of playback terminals, and the decoder that different playback terminals is supported is also inequality, if adopt above-mentioned technology, special-purpose trans-coding system then must be set on different playback terminals and video server, obviously increased unnecessary burden, also do not meet conveniently characteristics of network, a kind of what be applicable to digital home network is the technology that playback terminal can be play multiple Media Stream so need research and development.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of device that makes playback terminal in the digital home network can play multiple media formats is provided.
Another purpose of the present invention is to provide a kind of method that makes playback terminal in the digital home network can play multiple media formats according to this device.
In order to realize goal of the invention one, the technical scheme of employing is:
A kind of device that makes the terminal capable of playing multiple-media format of digital home network is arranged between the playback terminal of media server and digital home network, comprises media stream formats identification module, media conversion decision-making module, media format conversion module; Described media stream formats identification module is connected the also media stream data of receiving media server with media server, described media format conversion module is connected with playback terminal and media stream data directly or after the conversion is sent to playback terminal, and described media conversion decision-making module is connected with the media format conversion module with the media stream formats identification module respectively; Also be provided with the playback terminal form shfft of the format information that has comprised all playback terminals in the digital home network.
In the technique scheme, described playback terminal form shfft structure is:
The playback terminal form shfft has comprised the format information of all playback terminals.The format information of each playback terminal size that comprises its frame per second that can support, can adjust frame per second automatically, be supported wherein, promptly width and height, can adjust size automatically, the stream sign indicating number form supported, new decoding storehouse etc. more.These information are made best decision to the media conversion decision-making module and are absolutely necessary.
Described media conversion decision-making module is provided with the interface that can transfer the playback terminal form shfft.This module is a nucleus module.The media conversion decision-making module obtains the media stream formats information that media server provides from the media stream formats identification module.From the playback terminal form shfft, obtain the format information of the terminal of request service again by interface.After obtaining both information, just they are compared, so that make a policy.With the form of decision-making description list the media format conversion module is passed in the decision-making of making then.
Described media format conversion module is provided with the interface that can rewrite the playback terminal form shfft.The media format conversion module also is provided with the designated lane in the decoding storehouse that is used to upgrade the terminal plays device.This module the inside includes Media Stream decoding storehouse and transcoding storehouse, work such as the conversion of responsible media stream formats and update playing decoding terminals storehouse.This module according to the decision-making item requirement in the decision-making description list, is changed the media stream formats that server provides, and then the Media Stream after the conversion is exported to playback terminal behind the decision-making description list that acquisition media conversion decision-making module transmits.If desired, this module at first can be upgraded the decoding storehouse of corresponding playback terminal by designated lane, by list item corresponding in the interface update playing terminating format table, increase the stream sign indicating number format item that it is supported, simultaneously so that can make optimizing decision all the time in the decision-making module decision-making afterwards.
The identification that the Media Stream that described media stream formats identification module is imported media server carries out comprises frame per second, size, stream sign indicating number form etc.
In order to realize goal of the invention two, the technical scheme of employing is:
A kind of method that makes the terminal capable of playing multiple-media format of digital home network comprises the steps:
(1) by the media stream formats identification module Media Stream that media server sends is discerned, and sent identifying information to the media conversion decision-making module;
(2) media conversion decision-making module receiving media server identifying information the time, read the end message that proposes media play request in the playback terminal form shfft; And compare according to both information, with the form of decision-making description list the media format conversion module is passed in the decision-making of making then;
(3) the media format conversion module is behind the decision-making description list that acquisition media conversion decision-making module transmits, according to the decision-making item requirement in the decision-making description list, the media stream formats that media server provides is changed, and then the Media Stream after the conversion exported to playback terminal, or directly Media Stream is exported to playback terminal.
The decision-making of described step (2) comprises decoding storehouse, convert media stream sign indicating number form, adjustment frame per second, the adjustment size of update playing terminal.
In the described step (3), the media format conversion module is according to the decoding storehouse of decision-making update playing terminal, and the list item of this playback terminal correspondence in the update playing terminating format table increases the stream sign indicating number format item that it is supported simultaneously.
Advantage of the present invention is as follows:
(1) can change into the form that playback terminal is supported to the media stream form that obtains from media server
The present invention can differentiate the media stream form that media server provided by the media stream formats identification module, contrasting the form that the playback terminal form shfft can support with playback terminal then compares, if find that both forms are inconsistent, the media stream format conversion that server is transmitted by the media format conversion module form that becomes playback terminal to support then.So just making originally not, the playing terminal equipment of network enabled media services can obtain digital service to network indirectly by converting system.Removed the spending of changing novel playing terminal equipment from.
(2) can change according to the playback terminal characteristics, avoid system burden overweight
The media stream formats that the present invention can be transmitted according to the characteristics and the server of concrete playback terminal is made best conversion plan.Can support MPEG4 and MPEG2 form simultaneously as certain terminal, and server provides the MPEG2 form, converting system just can be made the judgement that does not need format transformation like this, directly Media Stream is passed to playback terminal.So just can handle under the condition of Media Stream at playback terminal, give terminal processes processing procedure as much as possible, make also when having alleviated the converting system burden that broadcast timeliness and service quality can be protected, and make playback terminal obtain optimal service to greatest extent.
(3), compatibility of the present invention and autgmentability be strong, if digital home network has increased playback terminal newly, only need in the playback terminal form shfft, to increase corresponding playback terminal information and then can.
Description of drawings
Fig. 1 is a structured flowchart of the present invention;
Fig. 2 is the decision flow diagram of media conversion decision-making module of the present invention;
Fig. 3 is that flow chart is upgraded in playback terminal decoding of the present invention storehouse;
Fig. 4 is a media format conversion flow chart of the present invention;
Fig. 5 is the conversion schematic diagram of one embodiment of the present of invention.
Embodiment
The present invention is described further below in conjunction with accompanying drawing.
Structured flowchart of the present invention as shown in Figure 1, comprise media stream formats identification module, media conversion decision-making module, media format conversion module and playback terminal form shfft, described media stream formats identification module is connected the also media stream data of receiving media server with media server, described media format conversion module is connected with playback terminal and media stream data directly or after the conversion is sent to playback terminal, and described media conversion decision-making module is connected with the media format conversion module with the media stream formats identification module respectively; The media conversion decision-making module also is connected with the playback terminal form shfft by interface respectively with the media format conversion module.
The decision flow diagram of media conversion decision-making module of the present invention as shown in Figure 2, the media stream formats information that media conversion decision-making module elder generation receiving media server sends contrasts the playback terminal form shfft again and obtains the playback terminal format information; Compare two kinds of format informations then, judge the whether stream format of support media server of terminal, if support, then enter the stage of judging frame per second, if do not support, then judge more new decoding storehouse of terminal again, if terminal is the new decoding storehouse more, add more new decoding library information in decision-making in the description list, if terminal new decoding storehouse more, then in the decision-making description list, add conversion stream sign indicating number form, also enter the stage of judging frame per second then; In the stage of judging frame per second, the present invention judges whether the frame per second that Media Stream that media server provides and playback terminal can play is identical, if identical, then enter and judge the size stage, if inequality, judge that then can terminal adjust frame per second, if can adjust frame per second, then also enter and judge the size stage, if can not adjust frame per second, then make a strategic decision again to add in the description list and adjust frame per second, enter again and judge the size stage; Judging that size is in the stage, whether the size of at first judging two kinds of format informations is identical, if identical, then withdraw from the decision-making treatment flow process, if inequality, judge again that then can terminal adjust size, if of course, also finish the decision-making treatment flow process, if cannot, then in the decision-making description list, add and adjust size, and finish the decision-making treatment flow process.
The flow chart in media format conversion module update playing decoding terminals of the present invention storehouse as shown in Figure 3, at first read the decision-making description list that the media conversion decision-making module is made, judge the project whether update playing decoding terminals storehouse is arranged in the decision-making description list, if have then upgrade the decoding terminals storehouse by designated lane, and then by list item corresponding in the interface update playing terminating format table, if there is not the project in update playing decoding terminals storehouse in the decision-making description list, more new decoding storehouse of this playback terminal then is described, or had a decoding storehouse of the Media Stream play of requiring, do not need to upgrade, so directly withdraw from.
The flow process of media format conversion module converts media formats of the present invention as shown in Figure 4, also through reading the decision-making description list, judge in the decision-making description list whether the project of adjusting frame per second is arranged, if any then adjusting frame per second, judge again in the decision-making description list whether the project of adjusting size is arranged,, judge the project whether conversion stream sign indicating number form is arranged in the decision-making description list again if any then adjusting size, if any then changing a stream sign indicating number form, again the Media Stream after the conversion is outputed to playback terminal.If there is not above-mentioned information in the decision-making description list, illustrate that then the media stream formats that playback terminal and media server provide is consistent, so directly Media Stream is outputed to playback terminal.
As one embodiment of the present of invention, the media conversion schematic diagram as shown in Figure 5.The media services of playback terminal a application far-end media server.Behind the Media Stream that obtains this media server, the present invention discerns Media Stream by the format identification module, finds that its frame per second is 24, is of a size of 120*80, and stream sign indicating number form is MPEG2.Then these information are passed to decision-making module.Simultaneously decision-making module reads in the playback terminal form shfft information corresponding to playback terminal a, so decision-making module 2 flow process with reference to the accompanying drawings makes a policy: decoding storehouse that can not update playing terminal a equipment, need transfer frame per second to 12, do not need size conversion (because the terminal support is adjusted automatically), do not need conversion stream sign indicating number form (because terminal is supported this stream sign indicating number form).Then these decision-making items are put in the decision-making description list and pass to format converting module.Format converting module is handled according to the flow process of accompanying drawing 3 and 4 after reading the decision-making description list successively, and the Media Stream after will handling is at last exported to playback terminal a and play.
The present invention has made best decision according to the characteristics of playback terminal a in this process, removed the conversion of size and stream sign indicating number form from, the process that can handle these playback terminals a has been given playback terminal a and has been handled, and has alleviated the burden of converting system, also puies forward conversion timeliness and quality simultaneously.
The present invention can be used as the computer software form and is installed in the home gateway of digital home network, then can realize goal of the invention.
Claims (4)
1, a kind of device that makes the terminal capable of playing multiple-media format of digital home network, be arranged between the playback terminal of media server and digital home network, it is characterized in that comprising media stream formats identification module, media conversion decision-making module, media format conversion module;
Described media stream formats identification module is connected the also media stream data of receiving media server with media server, described media format conversion module is connected with playback terminal and media stream data directly or after the conversion is sent to playback terminal, and described media conversion decision-making module is connected with the media format conversion module with the media stream formats identification module respectively;
Also be provided with the playback terminal form shfft of the format information that has comprised all playback terminals in the digital home network, described media conversion decision-making module is provided with the interface that can transfer the playback terminal form shfft, and described media format conversion module is provided with the interface that can rewrite the playback terminal form shfft and is used to upgrade the designated lane in the decoding storehouse of terminal plays device;
Described playback terminal form shfft structure comprises the format information of all playback terminals, the stream sign indicating number form that can described format information comprises the frame per second supported, adjust frame per second, the size of being supported, adjust size, be supported, new decoding storehouse more;
Described media conversion decision-making module obtains the media stream formats information that media server provides from the media stream formats identification module, from the playback terminal form shfft, obtain the format information of the terminal of request service again, after obtaining both information, they are compared, to make a policy, described decision-making comprises decoding storehouse, convert media stream sign indicating number form, adjustment frame per second, the adjustment size of update playing terminal, and decision-making is sent to the media format conversion module.
2, the device that makes the terminal capable of playing multiple-media format of digital home network according to claim 1 is characterized in that described media stream formats identification module comprises frame per second, size, stream sign indicating number form to the identification that the Media Stream of media server input carries out.
3, a kind of method that makes the terminal capable of playing multiple-media format of digital home network is characterized in that comprising the steps:
(1) by the media stream formats identification module Media Stream that media server sends is discerned, and sent identifying information to the media conversion decision-making module;
(2) media conversion decision-making module receiving media server identifying information the time, read the end message that proposes media play request in the playback terminal form shfft; And compare according to both information, with the form of decision-making description list the media format conversion module is passed in the decision-making of making then, described decision-making comprise the update playing terminal decoding storehouse, a convert media stream sign indicating number form, adjust frame per second, adjust size;
(3) the media format conversion module is behind the decision-making description list that acquisition media conversion decision-making module transmits, according to the decision-making item requirement in the decision-making description list, the media stream formats that media server provides is changed, and then the Media Stream after the conversion exported to playback terminal, or directly Media Stream is exported to playback terminal.
4, the method that makes the terminal capable of playing multiple-media format of digital home network according to claim 3, it is characterized in that in the described step (3), the media format conversion module is according to the decoding storehouse of decision-making update playing terminal, the list item of this playback terminal correspondence in the update playing terminating format table increases the stream sign indicating number format item that it is supported simultaneously.
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| CNB2006100346861A CN100442849C (en) | 2006-03-28 | 2006-03-28 | Apparatus and method for making digital domestic network terminal capable of playing multiple-media format |
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| CN100442849C true CN100442849C (en) | 2008-12-10 |
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| KR20090000654A (en) * | 2007-03-16 | 2009-01-08 | 삼성전자주식회사 | Apparatus and method for hook up contents |
| JP2008294957A (en) * | 2007-05-28 | 2008-12-04 | Oki Electric Ind Co Ltd | Media conversion system, media conversion method, media conversion program, call control device, media conversion apparatus |
| CN101094243B (en) * | 2007-05-31 | 2012-05-30 | 广东中大讯通软件科技有限公司 | Multimedia adaptation system and method of adaptating multimedia content for different types of devices base on UPnP |
| CN101350808B (en) * | 2007-07-19 | 2012-07-04 | 华为技术有限公司 | Method, system and apparatus for implementing conversion of medium contents |
| JP5123681B2 (en) * | 2008-02-05 | 2013-01-23 | キヤノン株式会社 | Video display device and control method thereof, and video output device and control method thereof |
| JP5487697B2 (en) * | 2009-04-20 | 2014-05-07 | ソニー株式会社 | Network server, media format conversion method, and media format conversion system |
| CN101938648B (en) * | 2009-10-15 | 2012-08-15 | 北京暴风科技股份有限公司 | Method and system for converting format of media file |
| CN102347947B (en) * | 2011-09-21 | 2015-01-21 | 杭州海康威视数字技术股份有限公司 | Streaming media adaptor, streaming media network interaction system and method |
| CN103139170A (en) * | 2011-11-30 | 2013-06-05 | 中国联合网络通信集团有限公司 | Service data sending method, media switching center and network system |
| CN104737550A (en) * | 2013-02-05 | 2015-06-24 | 华为技术有限公司 | Multimedia redirection method, server and client |
| CN103634694B (en) * | 2013-11-18 | 2017-04-12 | 奥维通信股份有限公司 | IP-based streaming media playing method and system |
| CN104581369A (en) * | 2014-12-22 | 2015-04-29 | 广东省广播电视网络股份有限公司 | Multi-channel high-definition live program forwarding method and system based on broadcast television network home gateway |
| CN106488261A (en) * | 2015-08-31 | 2017-03-08 | 中兴通讯股份有限公司 | Resource request method and device |
| CN105704508A (en) * | 2016-01-06 | 2016-06-22 | 无锡天脉聚源传媒科技有限公司 | Video merging method and device |
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