CN102571894B - Online streaming media control method and player - Google Patents
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- CN102571894B CN102571894B CN201110008603.2A CN201110008603A CN102571894B CN 102571894 B CN102571894 B CN 102571894B CN 201110008603 A CN201110008603 A CN 201110008603A CN 102571894 B CN102571894 B CN 102571894B
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Abstract
The present invention relates to a kind of online streaming media control method, comprise: check whether the data after the current playing point of the files in stream media of buffer memory in local buffer are full of not speed limit download region, be full of, adopt CDN low speed downloading mode to download this files in stream media from network side, and play this files in stream media, otherwise continue adopt CDN not speed limit downloading mode download this files in stream media from network side; Speed limit does not download region is data storage areas in local buffer between start memory location to the not speed limit download critical line preset, and low speed downloading mode is carry out with the downloading rate not higher than the code check of files in stream media the mode downloaded.The invention still further relates to a kind of online DST PLAYER.The present invention can switch transmission speed and transmission means according to the reception condition of terminal streaming media data, in the prerequisite ensureing files in stream media facile transport and broadcasting, saves system resource and the network bandwidth consumption of end side and server side.
Description
Technical field
The present invention relates to stream media technology, particularly relate to a kind of online streaming media control method and player.
Background technology
In current internet, two kinds of main flow actualizing technology of online streaming media are point-to-point (Peer to Peer is called for short P2P) technology and content distributing network (Content Delivery Network is called for short CDN) technology.
The core of CDN pushes on the fringe node of network by the content of central server, make user can obtain service nearby, thus ensure quality of service (Quality Of Service, be called for short QoS) and service availability, also flow is alleviated to a certain extent to the pressure of backbone network, inherently see, CDN belongs to server/client (Client/Server) technology of improvement, performance has the essential characteristic of Client/Server: there is reliable service ability, higher quality of service guarantee, but the expansion of system constantly need be deployed as basis with service ability, along with the expansion of service ability, need the investment constantly increasing central server and the network bandwidth.
P2P takes and traditional server/client computer (Client/Server) different transmission means, utilize the resource of user side, by " decentralization " design with equity, multicast communication is machine-processed realizes transfer of data, reliance server does not realize fast data exchange.When node Peer increases, the Internet can provide the resource of service also increase thereupon, thus solve the performance bottleneck and the Single Point of Faliure problem that come from server.But each Peer can stop service at any time and even exit, the content possible deleted or termination at any time of exchange is shared.In addition, the terminal that P2P technology is lower in other hardware configuration, performance is more weak as: when the terminal of Set Top Box, mobile phone, embedded OS is applied, set up P2P with multiple Peer and be connected at substantial terminal resource.
For CDN and P2P technology, also all also exist in the downloading process of online stream medium data, as terminal is in download state at full speed always, will the problem of other service processes that terminal is run be affected.
Summary of the invention
The object of the invention is to propose a kind of online streaming media control method and player, the online stream media transmission quality of all types of terminal, especially weak terminal can be ensured, guarantee online Streaming Media smooth playing.
For achieving the above object, the invention provides a kind of online streaming media control method, comprising:
Check whether the data after the current playing point of the files in stream media of buffer memory in local buffer are full of not speed limit download region, if be full of not speed limit to download region, then adopt content distributing network (Content Delivery Network, being called for short CDN) low speed downloading mode downloads this files in stream media from network side, and play this files in stream media, otherwise continue adopt content distributing network not speed limit downloading mode download this files in stream media from network side; It is data storage areas in local buffer between start memory location to the not speed limit download critical line preset that described not speed limit downloads region, and described low speed downloading mode is carry out with the downloading rate not higher than the code check of files in stream media the mode downloaded.
Further, when playing when files in stream media initial start-up or cause the data do not had in local buffer after the current playing point of this files in stream media of buffer memory due to the adjustment of current playing point, employing content distributing network not speed limit downloading mode downloads this files in stream media from network side, when data after the current playing point of files in stream media checking buffer memory in local buffer have been full of that speed limit does not download region, play this files in stream media.
Further, while employing content distributing network low speed downloading mode downloads this files in stream media from network side, point-to-point (Peer to Peer is called for short P2P) downloading mode is also adopted to download this files in stream media from network side.
Further, when adopting described content distributing network low speed downloading mode and described point-to-point downloading mode to download this files in stream media from network side simultaneously, content distributing network low speed downloading mode is adopted to download to same high priority data.
Further, also be provided with low speed and download region, it is the data storage areas that default not speed limit downloads between critical line to the low speed download critical line preset that described low speed downloads region, check whether the data after the current playing point of the files in stream media of buffer memory in described local buffer are full of low speed download region, if be full of low speed to download region, then suspend the download of described content distributing network low speed downloading mode, retain the download of described point-to-point downloading mode.
Further, also comprise: check whether local buffer is full of, if local buffer is full of, then suspend the download of downloading described files in stream media.
For achieving the above object, the invention provides a kind of online DST PLAYER, comprising:
Not speed limit download module, for adopt content distributing network not speed limit downloading mode from network side download stream media file;
Low speed download module, for adopting content distributing network low speed downloading mode from network side download stream media file, described low speed downloading mode is carry out with the downloading rate not higher than the code check of files in stream media the mode downloaded;
Files in stream media playing module, for playing stream media file;
Speed limit does not download region checking module, for check the files in stream media of buffer memory in local buffer current playing point after data whether be full of not speed limit and download region, if be full of not speed limit to download region, then trigger described low speed download module and described files in stream media playing module, otherwise trigger not speed limit download module.
Further, also comprise:
Initial start-up playing module, for when initial start-up playing stream media file causes the data do not had in local buffer after the current playing point of this files in stream media of buffer memory, not speed limit download module described in triggering, when data after the current playing point of files in stream media checking buffer memory in local buffer have been full of that speed limit does not download region, trigger and play described files in stream media playing module;
Broadcast point adjusting module, during for causing the data do not had in local buffer after the current playing point of this files in stream media of buffer memory in the adjustment of current playing point, not speed limit download module described in triggering, when data after the current playing point of files in stream media checking buffer memory in local buffer have been full of that speed limit does not download region, trigger and play described files in stream media playing module.
Further, also comprise:
Point-to-point download module, links with described low speed download module, downloads this files in stream media for adopting point-to-point downloading mode from network side.
Further, when adopting described content distributing network low speed downloading mode and described point-to-point downloading mode to download this files in stream media from network side simultaneously, content distributing network low speed downloading mode is adopted to download to same high priority data.
Further, be also provided with low speed and download region, it is the data storage areas that default not speed limit downloads between critical line to the low speed download critical line preset that described low speed downloads region, and described online DST PLAYER also comprises:
Low speed downloads region checking module, for check the files in stream media of buffer memory in described local buffer current playing point after data whether be full of low speed and download region, if be full of low speed to download region, then suspend the download of described content distributing network low speed downloading mode, retain the download of described point-to-point downloading mode.
Further, also comprise:
Buffering area checking module, for checking whether local buffer is full of, if be full of, then suspends the download of downloading described files in stream media.
Based on technique scheme, the present invention can switch transmission speed and transmission means according to the reception condition of terminal streaming media data, in the prerequisite ensureing files in stream media facile transport and broadcasting, save system resource and the network bandwidth consumption of end side and server side.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the Data distribution8 schematic diagram of the local buffer in the present invention's online streaming media control method embodiment.
Fig. 2 is the schematic flow sheet of the first embodiment of the online streaming media control method of the present invention.
Fig. 3 is the local buffer of Fig. 2 embodiment and the Data distribution8 schematic diagram of network side resource.
Fig. 4 is the schematic flow sheet of the second embodiment of the online streaming media control method of the present invention.
Fig. 5 is the local buffer of Fig. 4 embodiment and the Data distribution8 schematic diagram of network side resource.
Fig. 6 is the schematic flow sheet of the 3rd embodiment of the online streaming media control method of the present invention.
Fig. 7 is the local buffer of Fig. 6 embodiment and the Data distribution8 schematic diagram of network side resource.
Fig. 8 is the structural representation of the first embodiment of the online DST PLAYER of the present invention.
Fig. 9 is the structural representation of the second embodiment of the online DST PLAYER of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
In the present invention, in order to transmission and the playing process of the online files in stream media of better office terminal, thinner division and management have been carried out to traditional local buffer, thus be more applicable for the online streaming media playing of some resource-constrained terminals.Below in conjunction with Fig. 1, the Data distribution8 after locally buffered Division is described.
Local buffer refers to the one section of memory space be arranged in terminal, can prestore the stream medium data after current playing point, thus avoids the broadcasting of the interrupt flow media because of the reason of network speed when playing.In one embodiment of this invention, local buffer is divided into not speed limit and downloads region and other regions; In another embodiment, local buffer further can also be divided into not speed limit and download region, low speed download region and other regions.Give in Fig. 1 and comprise the Data distribution8 schematic diagram that not speed limit downloads region, low speed downloads region and other regions, more directly perceived in order to understand, two critical lines are adopted local buffer to be divided into three regions in FIG, speed limit does not download region is the data storage areas downloaded from start memory location to the not speed limit preset critical line, and speed limit download critical line and the low speed region of downloading between critical line are not that low speed downloads region, the region that low speed is downloaded outside critical line is other regions, can further segment as required and manage.
Terminal is when download stream media data, according to the time relationship of stream medium data block order by stream medium data stored in local buffer, first fill full not speed limit under normal circumstances and download region, recharge full low speed and download region, then be other regions, but the order also not getting rid of filling when using P2P to download change to some extent.
Based on the above-mentioned explanation to local buffer, next design of the present invention will be further illustrated by several embodiment.As shown in Figure 2, be the schematic flow sheet of the first embodiment of the online streaming media control method of the present invention.In the present embodiment, be divided into not speed limit in local buffer and download region and other regions, transmission control flow specifically comprises the following steps:
Step 101, check buffer memory in local buffer files in stream media current playing point after data whether be full of not speed limit and download region;
If step 102 has been full of not speed limit download region, then perform step 103, otherwise perform step 104;
Step 103, employing CDN low speed downloading mode are downloaded this files in stream media from network side, and are play this files in stream media;
Step 104, continuation employing CDN not speed limit downloading mode download this files in stream media from network side.
In the present embodiment, consider that CDN downloads hourly velocity very fast, exceed the code check of online Streaming Media, therefore be suitable for setting up buffer portion fast in local buffer, thus realize as early as possible playing, guarantee the fluency of the online Streaming Media of terminal plays simultaneously, if but keep the CDN of not speed limit to download always, more terminal resource will be taken, all waste can be caused to the bandwidth sum system resource of network side, therefore critical line is downloaded for boundary with not speed limit, for the mode that the online stream medium data exceeding this boundary adopts CDN low speed to download, so not only can not have influence on the smooth degree of terminal plays, but also save the resource consumption of terminal and network side.
Low speed in the present embodiment is downloaded and is actually the download of a kind of speed limit, is limited in does not download higher than the downloading rate of the code check of files in stream media by speed of download.
The setting of speed limit download critical line can not adjust according to the code stream size of the online files in stream media of reality, tag memory situation.Fig. 3 is the local buffer of Fig. 2 embodiment and the Data distribution8 schematic diagram of network side resource.As can be seen from Figure 3 part A data have employed not speed limit downloading mode, and part B have employed low speed downloading mode.
When files in stream media initial start-up is play, when can cause the data do not had in local buffer after the current playing point of this files in stream media of buffer memory, now then can adopt CDN not speed limit downloading mode from network side accelerate download this files in stream media, and the data after the current playing point of files in stream media checking buffer memory in local buffer are when being full of that speed limit does not download region, play this files in stream media.Now, also CDN low speed downloading mode is adopted to continue to download the operation followed in preceding step 103.In addition, if when the progress bar of player is dragged, current playing point can adjust, also the situation of the data do not had in local buffer after the current playing point of this files in stream media of buffer memory can be caused further, now also by employing CDN not speed limit downloading mode download this files in stream media from network side, be full of not speed limit to download behind region, playing stream media file.
In order to share the bandwidth sum system resource pressure of network side further, can also download as terminal is provided in linear flow media data in conjunction with P2P, as shown in Figure 4, be the schematic flow sheet of the second embodiment of the online streaming media control method of the present invention.Compared with a upper embodiment, the step 103 of the present embodiment replaces with step 103 ', this step is: while employing CDN low speed downloading mode downloads this files in stream media from network side, also adopt P2P downloading mode to download this files in stream media from network side.
Fig. 5 is the local buffer of Fig. 4 embodiment and the Data distribution8 schematic diagram of network side resource.As can be seen from Figure 5 part A data have employed not speed limit downloading mode, and correspond to not speed limit and download region, part B have employed low speed downloading mode, and C part have employed P2P downloading mode, and these two parts correspond to other regions.Although P2P downloading mode toggle speed comparatively CDN downloading mode is slow, its speed of download may comparatively be downloaded faster by CDN, therefore not only can well alleviate the bandwidth sum system resources consumption of server side, and may provide speed of download faster.
In addition, P2P is that data block is downloaded at random when downloading, instead of download according to reproduction time order, therefore less download with CDN is conflicted mutually, when adopting CDN low speed downloading mode and P2P downloading mode to download this files in stream media from network side simultaneously, CDN low speed downloading mode is then preferentially adopted to download to same data.
In order to further save the resource consumption of terminal and network side, can also arrange low speed and download region in local buffer, as shown in Figure 6, be the schematic flow sheet of the 3rd embodiment of the online streaming media control method of the present invention.Compared with the second embodiment, in the present embodiment, transmit control flow also to comprise:
Step 201, check buffer memory in described local buffer files in stream media current playing point after data whether be full of low speed download region;
If step 202 has been full of low speed download region, then perform step 203, otherwise perform step 204;
Step 203, suspend and adopt CDN low speed downloading mode to download this files in stream media, and retain P2P downloading mode and proceed to download;
Step 204, continuation adopt CDN low speed downloading mode and P2P downloading mode to download simultaneously.
In the present embodiment, consider that current playing point back adjusts, or time the P2P due to higher speed downloads and causes the data stored in local buffer to be filled with low speed download region, download even if now suspend, still can maintain the smooth playing of the online Streaming Media of a period of time, therefore the present embodiment saves the resource consumption of network side by the mode suspending the download of CDN low speed, P2P downloading mode is utilized to continue to download, and the data underfill low speed after the current playing point of files in stream media checking buffer memory in local buffer is when downloading region, adopt CDN low speed downloading mode and P2P downloading mode to download being adjusted to simultaneously.
Fig. 7 is the local buffer of Fig. 6 embodiment and the Data distribution8 schematic diagram of network side resource.As can be seen from Figure 7, part A data have employed not speed limit downloading mode, corresponds to not speed limit and download region.Part B have employed low speed downloading mode, and C part have employed P2P downloading mode, and these two parts correspond to low speed and download region.
In each above-mentioned embodiment of the method, whether terminal can also be full of local buffer checks, if local buffer is full of, then suspends the download of downloading described files in stream media, to avoid buffer overflow.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
As shown in Figure 8, be the structural representation of the first embodiment of the online DST PLAYER of the present invention.In the present embodiment, online streaming media playing implement body comprises: not speed limit download module 1, low speed download module 2, files in stream media playing module 3 and not speed limit download region checking module 4.Wherein not speed limit download module 1 be responsible for adopting CDN not speed limit downloading mode from network side download stream media file.Low speed download module 2 is responsible for adopting CDN low speed downloading mode from network side download stream media file, and low speed downloading mode is carry out with the downloading rate not higher than the code check of files in stream media the mode downloaded.Files in stream media playing module 3 is responsible for playing stream media file.Whether the speed limit data downloaded after the responsible current playing point checking the files in stream media of buffer memory in local buffer of region checking module 4 are not full of not speed limit download region, if be full of not speed limit to download region, then trigger described low speed download module 2 and described files in stream media playing module 3, otherwise trigger not speed limit download module 1.
In the present embodiment, player downloads critical line for boundary with not speed limit, for the mode that the online stream medium data exceeding this boundary adopts CDN low speed to download, so not only can not have influence on the smooth degree of terminal plays, but also save the resource consumption of terminal and network side.
In another embodiment, player can also comprise initial start-up playing module and broadcast point adjusting module.Initial start-up playing module is responsible for when initial start-up playing stream media file causes the data do not had in local buffer after the current playing point of this files in stream media of buffer memory, trigger not speed limit download module, when data after the current playing point of files in stream media checking buffer memory in local buffer have been full of that speed limit does not download region, trigger playing stream media file playing module.Broadcast point adjusting module is responsible for when the adjustment of current playing point causes the data do not had in local buffer after the current playing point of this files in stream media of buffer memory, trigger not speed limit download module, when data after the current playing point of files in stream media checking buffer memory in local buffer have been full of that speed limit does not download region, trigger playing stream media file playing module.
As shown in Figure 9, be the structural representation of the second embodiment of the online DST PLAYER of the present invention.Compared with the first embodiment, the present embodiment also comprises: point-to-point download module 5, links with low speed download module 2, and this module in charge adopts P2P downloading mode to download this files in stream media from network side.When adopting described content distributing network low speed downloading mode and described point-to-point downloading mode to download this files in stream media from network side simultaneously, content distributing network low speed downloading mode can be preferentially adopted to download to same data.The present embodiment utilizes P2P downloading mode to alleviate the burden of network side when CDN downloads, and P2P downloading mode also may have speed of download faster.
Also be provided with low speed in another embodiment and download region, it is the data storage areas that default not speed limit downloads between critical line to the low speed download critical line preset that low speed downloads region.Online DST PLAYER also comprises low speed and downloads region checking module, this module in charge checks whether the data after the current playing point of the files in stream media of buffer memory in local buffer are full of low speed and download region, if be full of low speed to download region, then suspend the download of described content distributing network low speed downloading mode, retain the download of described point-to-point downloading mode.
In each above-mentioned player embodiment, can further include: buffering area checking module, this module in charge checks whether local buffer is full of, if be full of, then suspends the download of downloading described files in stream media.
In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, same or analogous part cross-reference between each embodiment.For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (12)
1., for saving an online streaming media control method for the resource consumption of terminal and network side, comprising:
Check whether the data after the current playing point of the files in stream media of buffer memory in local buffer are full of not speed limit download region, if be full of not speed limit to download region, content distributing network low speed downloading mode is then adopted to download this files in stream media from network side, and play this files in stream media, otherwise continue adopt content distributing network not speed limit downloading mode download this files in stream media from network side; Described not speed limit download region is the data storage areas in local buffer between start memory location to the not speed limit download critical line preset, described low speed downloading mode is carry out with the downloading rate not higher than the code check of files in stream media the mode downloaded, and described not speed limit downloads the code stream size of setting according to the online files in stream media of reality of critical line, tag memory situation adjusts.
2. online streaming media control method according to claim 1, wherein, when playing when files in stream media initial start-up or cause the data do not had in local buffer after the current playing point of this files in stream media of buffer memory due to the adjustment of current playing point, employing content distributing network not speed limit downloading mode downloads this files in stream media from network side, when data after the current playing point of files in stream media checking buffer memory in local buffer have been full of that speed limit does not download region, play this files in stream media.
3. online streaming media control method according to claim 1, wherein, while employing content distributing network low speed downloading mode downloads this files in stream media from network side, also adopts point-to-point downloading mode to download this files in stream media from network side.
4. online streaming media control method according to claim 3, wherein, when adopting described content distributing network low speed downloading mode and described point-to-point downloading mode to download this files in stream media from network side simultaneously, content distributing network low speed downloading mode is adopted to download to same high priority data.
5. online streaming media control method according to claim 3, wherein, also be provided with low speed and download region, it is the data storage areas that default not speed limit downloads between critical line to the low speed download critical line preset that described low speed downloads region, check whether the data after the current playing point of the files in stream media of buffer memory in described local buffer are full of low speed download region, if be full of low speed to download region, then suspend the download of described content distributing network low speed downloading mode, retain the download of described point-to-point downloading mode.
6. online streaming media control method according to claim 1 or 5, wherein, also comprises: check whether local buffer is full of, if local buffer is full of, then suspends the download of downloading described files in stream media.
7., for saving an online DST PLAYER for the resource consumption of terminal and network side, comprising:
Not speed limit download module, for adopt content distributing network not speed limit downloading mode from network side download stream media file;
Low speed download module, for adopting content distributing network low speed downloading mode from network side download stream media file, described low speed downloading mode is carry out with the downloading rate not higher than the code check of files in stream media the mode downloaded;
Files in stream media playing module, for playing stream media file;
Speed limit does not download region checking module, for check the files in stream media of buffer memory in local buffer current playing point after data whether be full of not speed limit and download region, if be full of not speed limit to download region, then trigger described low speed download module and described files in stream media playing module, otherwise trigger not speed limit download module;
It is that in local buffer, start memory location downloads data storage areas between critical line to the not speed limit preset that described not speed limit downloads region, and the setting of described not speed limit download critical line adjusts according to the code stream size of the online files in stream media of reality, tag memory situation.
8. online DST PLAYER according to claim 7, wherein, also comprises:
Initial start-up playing module, for when initial start-up playing stream media file causes the data do not had in local buffer after the current playing point of this files in stream media of buffer memory, not speed limit download module described in triggering, when data after the current playing point of files in stream media checking buffer memory in local buffer have been full of that speed limit does not download region, trigger described files in stream media playing module;
Broadcast point adjusting module, during for causing the data do not had in local buffer after the current playing point of this files in stream media of buffer memory in the adjustment of current playing point, not speed limit download module described in triggering, when data after the current playing point of files in stream media checking buffer memory in local buffer have been full of that speed limit does not download region, trigger described files in stream media playing module.
9. online DST PLAYER according to claim 7, wherein, also comprises:
Point-to-point download module, links with described low speed download module, downloads this files in stream media for adopting point-to-point downloading mode from network side.
10. online DST PLAYER according to claim 9, wherein, when adopting described content distributing network low speed downloading mode and described point-to-point downloading mode to download this files in stream media from network side simultaneously, content distributing network low speed downloading mode is adopted to download to same high priority data.
11. online DST PLAYERs according to claim 9, wherein, also be provided with low speed and download region, it is the data storage areas that default not speed limit downloads between critical line to the low speed download critical line preset that described low speed downloads region, and described online DST PLAYER also comprises:
Low speed downloads region checking module, for check the files in stream media of buffer memory in described local buffer current playing point after data whether be full of low speed and download region, if be full of low speed to download region, then suspend the download of described content distributing network low speed downloading mode, retain the download of described point-to-point downloading mode.
12. online DST PLAYERs according to claim 7 or 11, wherein, also comprise:
Buffering area checking module, for checking whether local buffer is full of, if be full of, then suspends the download of downloading described files in stream media.
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| CN201110008603.2A CN102571894B (en) | 2010-12-07 | 2011-01-17 | Online streaming media control method and player |
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| CN201010577640.0 | 2010-12-07 | ||
| CN201010577640 | 2010-12-07 | ||
| CN2010105776400 | 2010-12-07 | ||
| CN201110008603.2A CN102571894B (en) | 2010-12-07 | 2011-01-17 | Online streaming media control method and player |
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