CN104602035B - Stream media ordering method and demand stream media system - Google Patents
Stream media ordering method and demand stream media system Download PDFInfo
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- CN104602035B CN104602035B CN201510066206.9A CN201510066206A CN104602035B CN 104602035 B CN104602035 B CN 104602035B CN 201510066206 A CN201510066206 A CN 201510066206A CN 104602035 B CN104602035 B CN 104602035B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005243 fluidization Methods 0.000 claims abstract description 23
- 238000009826 distribution Methods 0.000 claims description 17
- 230000004807 localization Effects 0.000 abstract description 5
- 238000013500 data storage Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 241001269238 Data Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
- H04N21/23103—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion using load balancing strategies, e.g. by placing or distributing content on different disks, different memories or different servers
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/232—Content retrieval operation locally within server, e.g. reading video streams from disk arrays
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The present invention provides a kind of stream media ordering method and demand stream media system, wherein, method includes：When any streaming media server in streaming media server cluster receives the streaming media on demand request for carrying out self terminal, streaming media on demand request is sent to distributed storage devices；Distributed storage devices select target storage server from distributed storage server cluster, and streaming media on demand request is sent to target storage server；Call number during target storage server is asked according to streaming media on demand obtains target data, and target data is sent to any streaming media server；Any streaming media server carries out target data according to default stream media protocol default processing operation, and the fluidisation data obtained after processing are distributed to terminal.It by technical scheme, solves the problems, such as VOD system data storage, is distributed the characteristics of disposing with reference to distributed storage, easily solves the problems, such as order video localization, improve user experience.
Description
Technical field
The present invention relates to media-on-demand technical field, in particular to a kind of stream media ordering method and a kind of stream matchmaker
Body VOD system.
Background technology
With the demand that growing streaming media is applied, video on-demand system be by network provide to the user including
The demand (telecommunication) service of the media datas such as video, audio, it is to carry out a kind of emerging network media mode this year, is computer, network
One integrated technology of the intersections such as the communication technology.
The transmission mode of existing program request, it is easy to cause the performance bottleneck of server, it is impossible to effectively support Streaming Media
Large-scale data distribution, and there are the problems such as high broadband, high storage, low concurrency in video on-demand system, and program request system
File must be read from local during streamed files of uniting, so cause mass data redundancy.
Therefore a kind of new technical solution is needed, can realizes the localization of VOD system content and solve program request system
During streamed files of uniting must from it is local read file and caused by mass data redundancy.
The content of the invention
The present invention is based on the above problem, it is proposed that a kind of new technical solution can realize VOD system content
Localization, but when can solve VOD system streamed files must from it is local read file and caused by mass data redundancy.
In view of this, the present invention proposes a kind of stream media ordering method, including：When appointing in streaming media server cluster
When one streaming media server receives the streaming media on demand request for carrying out self terminal, streaming media on demand request is sent to distribution
Formula storage device；The distributed storage devices select target storage server from distributed storage server cluster, and
Streaming media on demand request is sent to the target storage server；The target storage server is according to the Streaming Media
Call number in order request obtains target data, and the target data is sent to any streaming media server；Institute
It states any streaming media server and carries out default processing operation to the target data according to default stream media protocol, and will processing
The fluidisation data obtained afterwards are distributed to the terminal.
In the technical scheme, streaming media server transfers content indexing number to distributed storage server cluster, distribution
Formula storage server cluster is routed to target storage node according to call number and obtains data, and returns data to streaming media service
Device, the data received are directly carried out program request fluidization treatment by streaming media server, and are passed through stream media protocol and provided for terminal
Order program service.In this way, stream media system is combined with distributed storage, generated when solving vod server streamed files big
The problem of measuring temporary file, while by the characteristic distributions of mapped storage, can easily realize the sheet of VOD system content
Ground.
Wherein, target storage node can be nearest memory node, and specifically, nearest memory node can be according to section
Point network operation situation, access speed, load capacity situations such as be determined.
In the above-mentioned technical solutions, it is preferable that further include：According to the storage order received, by the content number of Streaming Media
It is stored according to by the distributed storage server cluster.
In the technical scheme, the content-data of Streaming Media is carried out by cluster storage by distributed server, it can be so as to
The content-data of the index Streaming Media of profit.
In the above-mentioned technical solutions, it is preferable that further include：To each storage server in the distributed server cluster
The corresponding call number of content-data of the Streaming Media of storage is counted, to obtain call number statistical form；The distributed storage
The call number, the call number statistical form and the distributed storage service of the device in streaming media on demand request
The service condition of each storage server, selects the target storage server in device cluster.
In the technical scheme, by the corresponding call number of content-data for the Streaming Media for counting storage, it is known that
Content-data can be found in which storage server, and then is looked into all storage servers that can find content-data
Find out that Network status is best, the most fast storage server of access speed (i.e. nearest memory node) is so as to improving streaming medium content
The program request efficiency of data promotes the usage experience of user.
In the above-mentioned technical solutions, it is preferable that further include：Any streaming media server will by the first preset interface
It is pre- by second that the streaming media on demand request is sent to the distributed storage devices and any streaming media server
If the fluidisation data obtained after processing are distributed to the terminal by interface.
In the technical scheme, streaming media on demand request is sent to distribution by streaming media server by the interface appointed
Formula storage server, and pass through the interface appointed and be distributed to terminal by data are fluidized, provide announcement service for terminal.
In the above-mentioned technical solutions, it is preferable that the default processing operation includes fluidization operation.
In the technical scheme, streaming media server directly fluidizes data according to stream media protocol, in this way, solving
A large amount of temporary files are led to the problem of during streaming media server streamed files in the prior art, avoid generating substantial amounts of redundant digit
According to.
According to a further aspect of the invention, a kind of demand stream media system is additionally provided, including：Streaming media server cluster；
Distributed storage devices；Transmitting element comes from when any streaming media server in the streaming media server cluster receives
During the streaming media on demand request of terminal, streaming media on demand request is sent to the distributed storage devices；Selecting unit,
Select target storage server from the distributed storage server cluster of the distributed storage devices, and by the stream matchmaker
Body order request is sent to the target storage server；Acquiring unit, the call number in being asked according to the streaming media on demand
Target data is obtained from the target storage server, and the target data is sent to any streaming media server；
Processing unit controls any streaming media server to carry out default place to the target data according to default stream media protocol
Reason operation, and the fluidisation data obtained after processing are distributed to the terminal.
In the technical scheme, streaming media server transfers content indexing number to distributed storage server cluster, distribution
Formula storage server cluster is routed to target storage node according to call number and obtains data, and returns data to streaming media service
Device, the data received are directly carried out program request fluidization treatment by streaming media server, and are passed through stream media protocol and provided for terminal
Order program service.In this way, stream media system is combined with distributed storage, generated when solving vod server streamed files big
The problem of measuring temporary file, while by the characteristic distributions of mapped storage, can easily realize the sheet of VOD system content
Ground.
Wherein, target storage node can be nearest memory node, and specifically, nearest memory node can be according to section
Point network operation situation, access speed, load capacity situations such as be determined.
In the above-mentioned technical solutions, it is preferable that further include：Storage unit, according to the storage order received, by Streaming Media
Content-data stored by the distributed storage server cluster.
In the technical scheme, the content-data of Streaming Media is carried out by cluster storage by distributed server, it can be so as to
The content-data of the index Streaming Media of profit.
In the above-mentioned technical solutions, it is preferable that further include：Statistic unit, to each in the distributed server cluster
The corresponding call number of content-data of the Streaming Media of storage server storage is counted, to obtain call number statistical form；It is described
Selecting unit is specifically used for：The call number, the call number statistical form and described in being asked according to the streaming media on demand
The service condition of each storage server, is deposited from the distribution of the distributed storage devices in distributed storage server cluster
The target storage server is selected in storage server cluster.
In the technical scheme, by the corresponding call number of content-data for the Streaming Media for counting storage, it is known that
Content-data can be found in which storage server, and then is looked into all storage servers that can find content-data
Find out that Network status is best, the most fast storage server of access speed (i.e. nearest memory node) is so as to improving streaming medium content
The program request efficiency of data promotes the usage experience of user.
In the above-mentioned technical solutions, it is preferable that further include：The streaming media on demand is asked to send out by the first preset interface
Obtained fluidisation data are distributed to described after sending to the distributed storage devices and being handled by the second preset interface
Terminal.
In the technical scheme, streaming media on demand request is sent to distribution by streaming media server by the interface appointed
Formula storage server, and pass through the interface appointed and be distributed to terminal by data are fluidized, provide announcement service for terminal.
In the above-mentioned technical solutions, it is preferable that the default processing operation includes fluidization operation.
In the technical scheme, streaming media server directly fluidizes data according to stream media protocol, in this way, solving
A large amount of temporary files are led to the problem of during streaming media server streamed files in the prior art, avoid generating substantial amounts of redundant digit
According to.
By above technical scheme, in video on-demand system high broadband, high storage, low concurrency the problems such as, this
Invention proposes a kind of streaming media on demand mode based on distributed storage, can realize the localization of VOD system content, again
It can solve the problems, such as mass data redundancy caused by must reading file from local during VOD system streamed files.
Description of the drawings
Fig. 1 shows the flow chart of stream media ordering method according to an embodiment of the invention；
Fig. 2 shows the block diagram of demand stream media system according to an embodiment of the invention；
Fig. 3 shows the particular flow sheet of stream media ordering method according to an embodiment of the invention；
Fig. 4 shows the block diagram of demand stream media system according to an embodiment of the invention.
Specific embodiment
It is to better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the case where there is no conflict, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other different from other modes described here, therefore, protection scope of the present invention and from described below
Specific embodiment limitation.
Fig. 1 shows the flow chart of stream media ordering method according to an embodiment of the invention.
As shown in Figure 1, an aspect of of the present present invention proposes a kind of stream media ordering method, the described method includes：Step
102, it, will when any streaming media server in streaming media server cluster receives the streaming media on demand request for carrying out self terminal
The streaming media on demand request is sent to distributed storage devices；Step 104, the distributed storage devices are from distributed storage
Target storage server is selected in server cluster, and streaming media on demand request is sent to the target storage service
Device；Step 106, the call number during the target storage server is asked according to the streaming media on demand obtains target data, and
The target data is sent to any streaming media server；Step 108, any streaming media server is according to default
Stream media protocol default processing operation is carried out to the target data, and the fluidisation data obtained after processing are sent to described
Terminal.
In the technical scheme, streaming media server transfers content indexing number to distributed storage server cluster, distribution
Formula storage server cluster is routed to target storage node according to call number and obtains data, and returns data to streaming media service
Device, the data received are directly carried out program request fluidization treatment by streaming media server, and are passed through stream media protocol and provided for terminal
Order program service.In this way, stream media system is combined with distributed storage, generated when solving vod server streamed files big
The problem of measuring temporary file, while by the characteristic distributions of mapped storage, can easily realize the sheet of VOD system content
Ground.
Wherein, target storage node can be nearest memory node, and specifically, nearest memory node can be according to section
Point network operation situation, access speed, load capacity situations such as be determined.
In the above-mentioned technical solutions, it is preferable that further include：According to the storage order received, by the content number of Streaming Media
It is stored according to by the distributed storage server cluster.
In the technical scheme, the content-data of Streaming Media is carried out by cluster storage by distributed server, it can be so as to
The content-data of the index Streaming Media of profit.
In the above-mentioned technical solutions, it is preferable that further include：To each storage server in the distributed server cluster
The corresponding call number of content-data of the Streaming Media of storage is counted, to obtain call number statistical form；The distributed storage
The call number, the call number statistical form and the distributed storage service of the device in streaming media on demand request
The service condition of each storage server, selects the target storage server in device cluster.
In the technical scheme, by the corresponding call number of content-data for the Streaming Media for counting storage, it is known that
Content-data can be found in which storage server, and then is looked into all storage servers that can find content-data
Find out that Network status is best, the most fast storage server of access speed (i.e. nearest memory node) is so as to improving streaming medium content
The program request efficiency of data promotes the usage experience of user.
In the above-mentioned technical solutions, it is preferable that further include：Any streaming media server will by the first preset interface
It is pre- by second that the streaming media on demand request is sent to the distributed storage devices and any streaming media server
If the fluidisation data obtained after processing are distributed to the terminal by interface.
In the technical scheme, streaming media on demand request is sent to distribution by streaming media server by the interface appointed
Formula storage server, and pass through the interface appointed and be distributed to terminal by data are fluidized, provide announcement service for terminal.
In the above-mentioned technical solutions, it is preferable that the default processing operation includes fluidization operation.
In the technical scheme, streaming media server directly fluidizes data according to stream media protocol, in this way, solving
A large amount of temporary files are led to the problem of during streaming media server streamed files in the prior art, avoid generating substantial amounts of redundant digit
According to.
Fig. 2 shows the block diagram of demand stream media system according to an embodiment of the invention.
As shown in Fig. 2, another aspect of the present invention proposes a kind of demand stream media system 200, streaming media server collection
Group；Distributed storage devices；Transmitting element 202, when any streaming media server in the streaming media server cluster receives
During the streaming media on demand request of arrival self terminal, streaming media on demand request is sent to the distributed storage devices；Choosing
Unit 204 is selected, target storage server is selected from the distributed storage server cluster of the distributed storage devices, and
Streaming media on demand request is sent to the target storage server；Acquiring unit 206, please according to the streaming media on demand
Call number in asking obtains target data from the target storage server, and the target data is sent to any stream
Media server；Processing unit 208 controls any streaming media server according to default stream media protocol to the target
Data carry out default processing operation, and the fluidisation data obtained after processing are distributed to the terminal.
In the technical scheme, streaming media server transfers content indexing number to distributed storage server cluster, distribution
Formula storage server cluster is routed to target storage node according to call number and obtains data, and returns data to streaming media service
Device, the data received are directly carried out program request fluidization treatment by streaming media server, and are passed through stream media protocol and provided for terminal
Order program service.In this way, stream media system is combined with distributed storage, generated when solving vod server streamed files big
The problem of measuring temporary file, while by the characteristic distributions of mapped storage, can easily realize the sheet of VOD system content
Ground.
Wherein, target storage node can be nearest memory node, and specifically, nearest memory node can be according to section
Point network operation situation, access speed, load capacity situations such as be determined.
In the above-mentioned technical solutions, it is preferable that further include：Storage unit 210 according to the storage order received, will flow
The content-data of media is stored by the distributed storage server cluster.
In the technical scheme, the content-data of Streaming Media is carried out by cluster storage by distributed server, it can be so as to
The content-data of the index Streaming Media of profit.
In the above-mentioned technical solutions, it is preferable that further include：Statistic unit 212, to every in the distributed server cluster
The corresponding call number of content-data of the Streaming Media of a storage server storage is counted, to obtain call number statistical form；Institute
Selecting unit is stated to be specifically used for：The call number, the call number statistical form and institute in being asked according to the streaming media on demand
The service condition of each storage server in distributed storage server cluster is stated, from the distribution of the distributed storage devices
The target storage server is selected in storage server cluster.
In the technical scheme, by the corresponding call number of content-data for the Streaming Media for counting storage, it is known that
Content-data can be found in which storage server, and then is looked into all storage servers that can find content-data
Find out that Network status is best, the most fast storage server of access speed (i.e. nearest memory node) is so as to improving streaming medium content
The program request efficiency of data promotes the usage experience of user.
In the above-mentioned technical solutions, it is preferable that further include：The streaming media on demand is asked to send out by the first preset interface
Obtained fluidisation data are distributed to described after sending to the distributed storage devices and being handled by the second preset interface
Terminal.
In the technical scheme, streaming media on demand request is sent to distribution by streaming media server by the interface appointed
Formula storage server, and pass through the interface appointed and be distributed to terminal by data are fluidized, provide announcement service for terminal.
In the above-mentioned technical solutions, it is preferable that the default processing operation includes fluidization operation.
In the technical scheme, streaming media server directly fluidizes data according to stream media protocol, in this way, solving
A large amount of temporary files are led to the problem of during streaming media server streamed files in the prior art, avoid generating substantial amounts of redundant digit
According to.
Fig. 3 shows the particular flow sheet of stream media ordering method according to an embodiment of the invention.
As shown in figure 3, the idiographic flow of stream media ordering method according to an embodiment of the invention, including：
Step 302, vod server (i.e. streaming media server) by the interface appointed transfer content indexing number to point
Cloth storage device；
Step 304, distributed storage devices are obtained data to storage node recently, are passed through simultaneously by call number, routing
The storage node returns data to vod server；
Step 306, vod server is directly obtained the data (no longer needing to be locally generated temporary file) of return, and
Data are fluidized according to stream media protocol；
Step 308, after fluidizing data, vod server externally announces service by stream media protocol.
Fig. 4 shows the block diagram of demand stream media system according to an embodiment of the invention.
As shown in figure 4, demand stream media system according to an embodiment of the invention includes：Streaming media server cluster
402 and distributed storage device 404, the following detailed description of the function of each several part：
It is asked when the A areas streaming media server 4022 in streaming media server cluster receives the RTMP access from user side
When asking, A areas streaming media server 4022 transfers content indexing number to distributed storage devices 404, in distributed storage devices 404
Storage control centre nearest storage server is routed to according to call number, such as A areas storage server 4044, by content-data
For call number to A areas storage server 4044, the data that A areas storage server 4044 returns to storage extremely store control centre 4042,
A areas streaming media server 4022 is transmitted to by storing control centre 4042.A areas streaming media server 4022 is directly receiving
Data carry out program request fluidization treatment；A areas streaming media server 4022 externally announces service by stream media protocol after fluidisation data.
Technical scheme is described in detail above in association with attached drawing, by technical scheme, can realize
The localization of VOD system content, but when can solve VOD system streamed files must from it is local read file and caused by it is a large amount of
Data redundancy.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of stream media ordering method, which is characterized in that including：
It, will when any streaming media server in streaming media server cluster receives the streaming media on demand request for carrying out self terminal
The streaming media on demand request is sent to distributed storage devices；
The distributed storage devices select target storage server from distributed storage server cluster, and by the stream
Media-on-demand requests are sent to the target storage server；
Call number during the target storage server is asked according to the streaming media on demand obtains target data, and by the mesh
Data sending is marked to any streaming media server；
Any streaming media server carries out the target data according to default stream media protocol default processing operation, and
By the data sending obtained after processing to the terminal；
The default processing operation includes fluidization operation.
2. stream media ordering method according to claim 1, which is characterized in that further include：
According to the storage order received, the content-data of Streaming Media is deposited by the distributed storage server cluster
Storage.
3. stream media ordering method according to claim 2, which is characterized in that further include：
To the corresponding call number of content-data of the Streaming Media of each storage server storage in the distributed server cluster
It is counted, to obtain call number statistical form；
The distributed storage devices according to the streaming media on demand ask in the call number, the call number statistical form and
The service condition of each storage server, selects the target storage server in the distributed storage server cluster.
4. stream media ordering method according to claim 1, which is characterized in that further include：
Streaming media on demand request is sent to the distribution by any streaming media server by the first preset interface
The fluidisation data obtained after processing are distributed to by storage device and any streaming media server by the second preset interface
The terminal.
5. a kind of demand stream media system, which is characterized in that including：
Streaming media server cluster；
Distributed storage devices；
Transmitting element carrys out the Streaming Media of self terminal when any streaming media server in the streaming media server cluster receives
During order request, streaming media on demand request is sent to the distributed storage devices；
Selecting unit selects target storage service from the distributed storage server cluster of the distributed storage devices
Device, and streaming media on demand request is sent to the target storage server；
Acquiring unit, the call number in being asked according to the streaming media on demand obtain number of targets from the target storage server
According to, and the target data is sent to any streaming media server；
Processing unit controls any streaming media server to be carried out according to default stream media protocol to the target data pre-
If processing operation, and by the data sending obtained after processing to the terminal；
The default processing operation includes fluidization operation.
6. demand stream media system according to claim 5, which is characterized in that further include：
The content-data of Streaming Media according to the storage order received, is passed through the distributed storage server by storage unit
Cluster is stored.
7. demand stream media system according to claim 6, which is characterized in that further include：
Statistic unit corresponds to the content-data of the Streaming Media of each storage server storage in the distributed server cluster
Call number counted, to obtain call number statistical form；
The selecting unit is specifically used for：
The call number, the call number statistical form and the distributed storage service in being asked according to the streaming media on demand
The service condition of each storage server in device cluster, from the distributed storage server cluster of the distributed storage devices
Select the target storage server.
8. demand stream media system according to claim 5, which is characterized in that further include：
Streaming media on demand request is sent to and by second by the distributed storage devices by the first preset interface
The fluidisation data that preset interface obtains after handling are distributed to the terminal.
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| CN106488263A (en) * | 2016-10-24 | 2017-03-08 | 北京小米移动软件有限公司 | Push the method and device of live broadcast stream media data |
| CN106899577A (en) * | 2017-01-21 | 2017-06-27 | 北京优教互动教育科技有限公司 | A kind of Video service cloud platform for long-distance education |
| CN107333080B (en) * | 2017-05-24 | 2019-11-22 | 清华大学 | A kind of high speed, high resolution image data recording method, apparatus and system |
| CN107704564A (en) * | 2017-09-29 | 2018-02-16 | 广州优谷信息技术有限公司 | A kind of touch VOD system for being used to read aloud booth |
| CN114945018A (en) * | 2022-04-29 | 2022-08-26 | 中国电信股份有限公司 | Streaming media data distribution method and system |
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| CN102118315A (en) * | 2011-02-28 | 2011-07-06 | 华为技术有限公司 | Method for fluidizing, recording and reading data and system adopting same |
| CN102196298A (en) * | 2011-05-19 | 2011-09-21 | 广东星海数字家庭产业技术研究院有限公司 | Distributive VOD (video on demand) system and method |
| CN102685123A (en) * | 2012-05-04 | 2012-09-19 | 安科智慧城市技术（中国）有限公司 | Cloud-storage-based streaming media publication device, system and method |
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