CN101848205A - RTSP based stream media playing method and system thereof on mobile terminal - Google Patents
RTSP based stream media playing method and system thereof on mobile terminal Download PDFInfo
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Abstract
The invention discloses a RTSP based stream media playing method of a mobile terminal, which comprises the steps that: a, a client sends supported media types to a server; b, the server finds out database server to find out a media data set matched with the media types from a media database; c, media data the code rate of which is smaller than or equal to and is closest to the downlink rate of network bandwidth is selected from the media data set; and d, the server sends media data to the client. When the code rate of the media data is smaller than or equal to and is closest to the downlink rate of the network bandwidth, the condition of pause buffering can not appear in the playing process so as to meet the requirement of a user on smooth media playing. The media data with best playing effect and optimal definition is selected on the premise of playing smoothly by the user so as to meet the requirement of the user on playing high-definition media, so the invention can meet the requirement of selecting high-definition media to be played on the premise of playing the media smoothly.
Description
Technical field
The present invention relates to the wireless network applied technical field, more particularly, relate to a kind of method and system of the mobile terminal playing Streaming Media based on RTSP.
Background technology
Portable terminal realizes that Streaming Media is quite general, generally based on real time streaming protocol (rtsp), and P2P, agreements such as RTP, wherein RTSP is an application level protocol, the transmission of control real time data.RTSP provides an extensible framework, makes real time data, becomes possibility as controlled, the program request of audio ﹠ video.This agreement purpose is to control a plurality of data and sends connection, for selecting sendaisle, as UDP, multicast UDP and TCP, provides approach, and provides method for selecting to go up transmit mechanism based on RTP.RTSP is based on the communication pattern of C/S framework, and its interactive mode is as follows: promptly be client computer with server between intercommunication mutually, the transmission of media data on network flow after agreement both sides reach an agreement.
Application number is 200510135458, denomination of invention is the Chinese invention patent application of " a kind of adaptation method of Streaming Media portable terminal ", disclose a kind of method of streaming media playing, this method comprises the steps: that a, mobile device terminal are to the stream media system reporting terminal capacity information; B, stream media system read the corresponding apparatus ability information according to the terminal ability information that receives from configuration server, and the part that repeats in the pairing device capability information of every terminal ability information upgraded according to default priority, the device capability information that priority is high is replaced the low device capability information of priority; C, carry out selection of media content coupling, send into the stream media system buffer area after finding the media content of coupling, beginning to carry out from the stream media system buffer area, sending when Media Stream transmits this media content according to device capability information.Though this method can realize the mutual of information between client and the server, this method is not considered the actual conditions of existing network bandwidth, thereby causes the actual play poor effect of client in the playing process.
When user's movie, client is with the media play form notification streams media system of supporting, stream media system is searched the media play form that client is supported from server, the information that finds is sent to client.If the flow of this user's the network bandwidth is little, and stream media system found the low broadcast format of compression ratio (as AVI etc.) from server, and client will be not smooth when playing media so, the situation that buffering is paused often occurs; If the flow of this user's the network bandwidth is big, and stream media system has found the high broadcast format of compression ratio (as 3GP etc.) from server, though this kind broadcast format capacity is little, image is clear inadequately, so will cause this user can't enjoy result of broadcast clearly.Therefore, prior art is not considered the actual conditions of user's the network bandwidth, thereby causes the actual play poor effect of client in the playing process.
Therefore, how can consider the actual conditions of the network bandwidth, how can become the present problem that needs solution for the user improves play quality.
Summary of the invention
In view of this, the invention provides a kind of method and system of the mobile terminal playing Streaming Media based on RTSP, so that improve user's play quality.
The embodiment of the invention is achieved in that
A kind of method of the mobile terminal playing Streaming Media based on RTSP comprises:
A, client send to server with the medium type of supporting;
B, described server are found out the media data collection that is complementary with described medium type from media database;
C, from described media data concentrate to select code check smaller or equal to and near the media data of network bandwidth downstream rate;
D, described server send described media data to described client.
Preferably, in the method for above-mentioned mobile terminal playing Streaming Media based on RTSP, if from described media data concentrate can't find code check smaller or equal to and near the media data of network bandwidth downstream rate, then described server to described client send code check greater than and near the media data of network bandwidth downstream rate.
Preferably, in the method for above-mentioned mobile terminal playing Streaming Media based on RTSP, before described step a, also comprise:
Described client is obtained available method to described server, and sends the address of the RTSP of described client to described server;
Described server provides relevant method to use to client.
Preferably, in the method for above-mentioned mobile terminal playing Streaming Media based on RTSP, described step a further comprises:
Described client sends RTSP address and version, player version to described server, and the medium type supported of client.
A kind of system of the mobile terminal playing Streaming Media based on RTSP comprises acquisition module, matching module, selection module and sending module;
Described acquisition module is used to obtain the medium type that client is supported;
Described matching module is used for finding out the media data collection that is complementary with described medium type from the media database of server;
Described selection module, be used for from described media data concentrate to select code check smaller or equal to and near the media data of network bandwidth downstream rate;
Described sending module is used for sending described media data to described client.
Compared with prior art, the technical scheme that provides of the embodiment of the invention has the following advantages and characteristics:
From such scheme as can be seen, the present invention can come for the user selects best media data according to the network bandwidth of client and the medium type of support, so that improve user's play quality.Server is after understanding client institute support media type, from database, find out the media data collection that is complementary with medium type, this media data is concentrated and is had the plurality of media data, again from media data concentrate to select code check smaller or equal to and near the media data of network bandwidth downstream rate, selected media data had both met the medium type of client, met each user's the different actual conditions of the network bandwidth again.Because when the code check of media data smaller or equal to and near the downstream rate of the network bandwidth time, user's can not occur pausing in playing process situation of buffering satisfies the requirement of user's smooth playing medium with this.And under the prerequisite of user's smooth playing, select the media data that result of broadcast is best, definition is best, thereby satisfy the requirement that the user plays high definition media.Therefore, the present invention can solve prior art and have the not smooth and unsharp shortcoming of result of broadcast of playing media, thereby is implemented under the prerequisite of smooth playing medium the requirement of selecting the highest medium of definition to play.
Description of drawings
In order to be illustrated more clearly in the present invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow diagram of an embodiment provided by the invention;
Fig. 2 is the method flow diagram of another embodiment provided by the invention;
Fig. 3 is the method flow diagram of another embodiment provided by the invention;
Fig. 4 is system module figure provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
See also Fig. 1, Fig. 1 is a kind of flow chart of method of the mobile terminal playing Streaming Media based on RTSP, and this method comprises:
User's result of broadcast depends on the downstream rate of the network bandwidth and the code check of media data in fact, and wherein, downstream rate is user's per second can the data downloaded amount, and unit is kbps, i.e. the kilobit per second.The data bits that the unit interval transmitted when code check was exactly the media data transmission, generally the unit of our usefulness is kbps, i.e. the kilobit per second.More popular understanding is exactly sampling rate, and sampling rate is big more in the unit interval, and precision is just high more, and the file that deals is just more near original document.But file size is directly proportional with sampling rate, and promptly the high more video file of code check is big more.From the audio frequency aspect, code check is high more, and compressed ratio is more little, and the tonequality loss is more little, and is approaching more with the tonequality of source of sound.From the video aspect, code check is high more, and compressed ratio is more little, and image sharpness and audio loss are more little, and is just approaching more with picture that was not compressed and tonequality.
So present embodiment comes for the user selects best media data by the actual conditions according to the medium type of the network bandwidth of client and support, so that improve user's play quality.Server is after definite client institute support media type, from database, find out the media data collection that is complementary with medium type, this media data is concentrated and is had the plurality of media data, again from media data concentrate to select code check smaller or equal to and near the media data of network bandwidth downstream rate, selected media data had both met the medium type of client, met each user's the different actual conditions of the network bandwidth again.Because when the code check of media data smaller or equal to and near the downstream rate of the network bandwidth time, user's can not occur pausing in playing process situation of buffering satisfies the requirement of user's smooth playing medium with this.And under the prerequisite of user's smooth playing, select the media data that result of broadcast is best, definition is best, thereby satisfy the requirement that the user plays high definition media.Therefore, the present invention can solve prior art and have the not smooth and unsharp shortcoming of result of broadcast of playing media, thereby is implemented under the prerequisite of smooth playing medium the requirement of selecting the highest medium of definition to play.
See also Fig. 2, Fig. 2 is the flow chart of another embodiment of the present invention method, and this method comprises:
Present embodiment is on the basis of a last embodiment, increased the step of a judgement, if promptly media data concentrate can not find code check smaller or equal to and near the media data of network bandwidth downstream rate, then server to client send code check greater than and near the media data of network bandwidth downstream rate.The purpose of doing like this is when server can not find the most suitable user's media data, can find the media data that is fit to the user relatively, though code check is greater than the downstream rate of the network bandwidth, but still want code check near the media data of the downstream rate of the network bandwidth, the user is in playing media like this, though need of short duration buffering, can find relative distinct image medium for the user.
See also Fig. 3, Fig. 3 is the flow chart of another embodiment of the present invention method, and this method comprises:
In this enforcement, client is obtained the available method of server earlier, as playing, stop, and methods of operation such as time-out, and send the address of the RTSP of client to server.After server is received the solicited message of client, will provide these relevant methods to use for client.
See also Fig. 4, Fig. 4 is the system module figure of a kind of mobile terminal playing Streaming Media based on RTSP provided by the invention, and this system comprises acquisition module 4021, matching module 4022, selects module 4023 and sending module 4024;
Acquisition module 4021 is used to obtain the medium type that client 401 is supported;
Matching module 4022 is used for finding out the media data collection that is complementary with described medium type from the media database of server 403;
Select module 4023, be used for from described media data concentrate select code check smaller or equal to and near the media data of network bandwidth downstream rate;
Sending module 4024 is used for sending described media data to client 401.
Need to prove; Fig. 1 extremely embodiment shown in Figure 4 is the preferred embodiment that the present invention introduces; those skilled in the art on this basis; can design more embodiment fully; therefore the present invention embodiment of being not limited to provide is conspicuous to the multiple modification of these embodiment to those skilled in the art, all is the scope of protection of the invention; because length is limited, does not give unnecessary details herein.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
It will be understood by those skilled in the art that and to use many different technologies and in the technology any one to come expression information, message and signal.For example, the message of mentioning in the above-mentioned explanation, information can be expressed as voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or above combination in any.
The professional can also further recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each specific should being used for, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (5)
1. the method based on the mobile terminal playing Streaming Media of RTSP is characterized in that, comprising:
A, client send to server with the medium type of supporting;
B, described server are found out the media data collection that is complementary with described medium type from media database;
C, from described media data concentrate to select code check smaller or equal to and near the media data of network bandwidth downstream rate;
D, described server send described media data to described client.
2. the method for the mobile terminal playing Streaming Media based on RTSP as claimed in claim 1, it is characterized in that, if from described media data concentrate can't find code check smaller or equal to and near the media data of network bandwidth downstream rate, then described server to described client send code check greater than and near the media data of network bandwidth downstream rate.
3. the method for the mobile terminal playing Streaming Media based on RTSP as claimed in claim 1 is characterized in that, before described step a, also comprises:
Described client is obtained available method to described server, and sends the address of the RTSP of described client to described server;
Described server provides relevant method to use to client.
4. the method for the mobile terminal playing Streaming Media based on RTSP as claimed in claim 3 is characterized in that described step a further comprises:
Described client sends RTSP address and version, player version to described server, and the medium type supported of client.
5. the system based on the mobile terminal playing Streaming Media of RTSP is characterized in that, comprises acquisition module, matching module, selection module and sending module;
Described acquisition module is used to obtain the medium type that client is supported;
Described matching module is used for finding out the media data collection that is complementary with described medium type from the media database of server;
Described selection module, be used for from described media data concentrate to select code check smaller or equal to and near the media data of network bandwidth downstream rate;
Described sending module is used for sending described media data to described client.
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| CN102217278B (en) * | 2010-12-17 | 2014-07-16 | 华为技术有限公司 | Method and apparatus for online adapting of media content |
| CN102217278A (en) * | 2010-12-17 | 2011-10-12 | 华为技术有限公司 | Method and apparatus for online adapting of media content |
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| CN105657460A (en) * | 2014-11-14 | 2016-06-08 | 华为终端（东莞）有限公司 | Streaming media playing method and device and mobile terminal |
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| CN109996094A (en) * | 2017-12-29 | 2019-07-09 | 杭州海康威视系统技术有限公司 | Video broadcasting method, apparatus and system |
| CN111372127A (en) * | 2020-03-10 | 2020-07-03 | 深圳市腾讯信息技术有限公司 | Data transmission method and related device |
| CN111372127B (en) * | 2020-03-10 | 2022-08-30 | 深圳市腾讯信息技术有限公司 | Data transmission method and related device |
| CN114553847A (en) * | 2022-04-24 | 2022-05-27 | 深圳市前海日新数码科技有限公司 | Stream media device management method, management device and readable storage medium |
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