KR20150045891A - Method and apparatus for providing streaming contents - Google Patents

Method and apparatus for providing streaming contents Download PDF

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Publication number
KR20150045891A
KR20150045891A KR20140137946A KR20140137946A KR20150045891A KR 20150045891 A KR20150045891 A KR 20150045891A KR 20140137946 A KR20140137946 A KR 20140137946A KR 20140137946 A KR20140137946 A KR 20140137946A KR 20150045891 A KR20150045891 A KR 20150045891A
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KR
South Korea
Prior art keywords
streaming
file
content providing
url
providing apparatus
Prior art date
Application number
KR20140137946A
Other languages
Korean (ko)
Inventor
김우석
배병준
이훈희
임형수
허남호
Original Assignee
한국전자통신연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 한국전자통신연구원 filed Critical 한국전자통신연구원
Priority to US14/519,669 priority Critical patent/US20150113101A1/en
Publication of KR20150045891A publication Critical patent/KR20150045891A/en

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Classifications

    • 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
    • H04N21/21—Server components or server architectures
    • H04N21/226—Characteristics of the server or Internal components of the server
    • H04N21/2265—Server identification by a unique number or address, e.g. serial number
    • 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
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234345—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
    • 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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H04N21/2353—Processing of additional data, e.g. scrambling of additional data or processing content descriptors specifically adapted to content descriptors, e.g. coding, compressing or processing of metadata
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/845—Structuring of content, e.g. decomposing content into time segments
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
    • H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Library & Information Science (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

The apparatus for providing contents offers contents using the following steps: a step of receiving user′s request for the streaming contents, a step of judging whether a streaming file corresponding to the streaming contents is saved in the apparatus for providing contents, and a step of sending the IP address of the apparatus for providing contents through web browser in case the streaming file is saved in the apparatus.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and apparatus for providing streaming contents,

The present invention relates to a method and apparatus for providing streaming contents transparently using a broadcasting network.

 Hybrid delivery in a broadcasting and convergence environment is a technology for transmitting the same or related contents through a broadcasting network and a communication network. The content can be transmitted through one of the broadcasting network or the communication network according to the state of the network or the user's request, or transmitted through the broadcasting network and the communication network at the same time, thereby increasing the utilization efficiency of the network resources. Also, a content requiring a high bandwidth may be transmitted by combining a broadcasting network and a communication network.

One of the important technical challenges in such hybrid transmission is to provide a way for the user or application to access the content transmitted over the broadcast network and the network in a transparent manner in a consistent manner. That is, by processing contents provided through a broadcasting network and a communication network from a content receiving end such as a user or an application through the same technical method, the implementation complexity of the application can be lowered and the development of various applications for broadcasting and communication convergence can be activated .

Hypertext transfer protocol (HTTP) streaming is a media streaming method that is the mainstream of the web environment in recent years. Unlike the existing streaming method, in HTTP streaming, media is divided into physical or virtual segments or chunk-based files (i.e., media segment files), and servers and the like divide them into HTTP To the terminal. The advantage of HTTP streaming is that the existing web-based technology can be used as it is by using the HTTP protocol, which is the standard of web environment, and accessibility is low because it is blocked by the firewall. It is not necessary.

However, there is a problem to be solved in order to provide HTTP streaming through a broadcasting network. First of all, in the HTTP streaming, content is transmitted in the form of a file. Therefore, the receiving end of the broadcasting network must be able to perform a data processing method different from the existing method. It is also difficult to directly apply the HTTP protocol, which is assumed to be bidirectional communication, to a broadcasting network based on unidirectional communication.

SUMMARY OF THE INVENTION The present invention provides a method and apparatus for providing a streaming service transparently using a broadcasting network.

According to one embodiment of the present invention, a method for providing streaming contents of a content providing apparatus is provided. The content providing method includes the steps of receiving a request for streaming content from a user, determining whether a streaming file corresponding to the streaming content is stored in the content providing device, and, if the streaming file is stored in the content providing device, And delivering a local internet protocol (IP) address of the content providing device to the browser.

In the content providing method, the request may be in the form of a uniform resource locator (URL).

The method includes: receiving a uniform resource locator (URL) of at least one streaming file and at least one streaming file through a broadcasting network; storing at least one streaming file based on the URL; As shown in FIG.

The step of storing in the content providing method may include storing at least one streaming file in the same structure as the hierarchical structure of the streaming server indicated in the URL.

The step of storing in the content providing method may include the step of creating the same directory as the directory of the streaming server in the local storage of the content providing apparatus and storing the streaming file in the directory created in the local storage .

The at least one streaming file in the content providing method may include a media segment of the at least one streaming file and a meta information file for playback of the at least one streaming file.

The content providing method may further include storing the domain name of at least one streaming server that has transmitted the at least one streaming file by analyzing the URL of the at least one streaming file.

The step of determining in the content providing method may include comparing a domain name of at least one streaming server with a domain name indicated in the request.

According to another embodiment of the present invention, a content providing apparatus for providing streaming content is provided. The content providing apparatus includes a web browser that receives a request for streaming content from a user and a streaming file corresponding to the streaming content is stored in the content providing apparatus. When the streaming file is stored in the content providing apparatus, And a domain name server (DNS) proxy that delivers a local internet protocol (IP) address of the content providing device to the browser.

The request in the content providing device may be in the form of a uniform resource locator (URL).

The content providing apparatus includes a broadcast receiver for receiving a uniform resource locator (URL) of at least one streaming file and at least one streaming file through a broadcasting network, and at least one streaming And a control unit for storing the file.

In the content providing apparatus, the control unit may store at least one streaming file in the local storage, in a structure identical to the hierarchical structure of the streaming server indicated by the URL.

In the content providing apparatus, the control unit may generate the same directory as the directory of the streaming server in the local storage, and store the streaming file in the directory created in the local storage.

The at least one streaming file in the content providing apparatus may include a media segment of the at least one streaming file and a meta information file for playback of the at least one streaming file.

In the content providing apparatus, the DNS proxy may store a domain name of at least one streaming server that has transmitted the at least one streaming file by analyzing the URL of the at least one streaming file.

In the content providing apparatus, the DNS proxy can compare the domain name of at least one streaming server with the domain name indicated in the request.

According to one embodiment of the present invention, the content providing apparatus stores the media segment file received through the broadcasting network in the same structure as the layer of the HTTP streaming server 100, so that the file transmitted through the broadcasting network can be transmitted to the user .

1 is a diagram illustrating a broadcasting communication convergence system for providing an HTTP streaming service according to an embodiment of the present invention.
2 is a block diagram illustrating a content providing apparatus of a broadcasting and communication convergence system according to an embodiment of the present invention.
3 is a diagram illustrating a media segment file stored in a content providing apparatus according to an embodiment of the present invention.
4 is a flowchart illustrating a content providing method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

1 is a diagram illustrating a broadcasting communication convergence system for providing an HTTP streaming service according to an embodiment of the present invention.

Referring to FIG. 1, a broadcasting and communication convergence system according to an embodiment of the present invention includes an HTTP streaming server 100, a broadcasting transmission system 200, and a content providing apparatus 300.

The HTTP streaming server 100 can provide the HTTP streaming service to the content providing apparatus 300 through the communication network and can transmit the media segment file to the broadcasting transmission system 200. That is, the HTTP streaming server 100 may provide an HTTP streaming service through a communication network (Web), and may transmit the media segment file and related meta information to the broadcasting transmission system 200.

The broadcast transmission system 200 can provide the HTTP streaming service to the content providing apparatus 300 by transmitting the media segment file received from the HTTP streaming server 100 to the content providing apparatus 300 via the broadcasting network. At this time, the broadcasting transmission system 200 multiplexes the media segment file received from the HTTP streaming server 100 and the related meta information, and transmits the multiplexed meta information to the content providing apparatus 300 through the broadcasting network. The media segment file to be transmitted through the broadcast network includes a media segment of the media segment file and a meta information file (e. G., M3u8 format of Apple's HTTP live streaming or mpd format of DASH) for playback of the media segment file.

In addition, the broadcast transmission system 200 can further transmit uniform resource locator (URL) information of the media segment file to the content providing apparatus 300. [ For example, when the HTTP streaming server 100 transmits a media segment file accessible via the URL "http://server.com/video/segment1.ts" to the broadcast transmission system 200, 200 may transmit the URL information of the media segment file together with the media segment file to the content providing apparatus 300. [

The content providing apparatus 300 can receive the media segment file through the broadcasting network and the communication network, and can provide the HTTP streaming service to the user when the user requests the media segment file.

In the embodiment of the present invention, when a media segment file is transmitted through a broadcasting network, a file delivery over unidirectional transport (FLUTE) standard may be used. However, The transport protocol specification is not limited.

2 is a block diagram illustrating a content providing apparatus of a broadcasting and communication convergence system according to an embodiment of the present invention.

2, a content providing apparatus 300 according to an exemplary embodiment of the present invention includes a broadcast receiver 310, a controller 320, a local HTTP server 330, a local storage 340, a web browser 350 And a Domain Name Server (DNS) proxy 360.

The broadcast receiving unit 310 receives the media segment file from the broadcast transmission system 100 through the broadcasting network. At this time, the broadcast receiver 310 can also receive the URL of the media segment file, and delivers the URL of the media segment file to the DNS proxy.

The control unit 320 may store the media segment file in the local storage 340 connected to the local HTTP server.

The local HTTP server 330 can access the media segment file stored in the local storage 340 through the HTTP protocol.

In the local storage device 340, a media segment file received through a broadcasting network may be stored in a hierarchical structure such as a media segment file provided through a communication network. A method by which the control unit 320 stores the media segment file received through the broadcasting network in the local storage 340 will be described in detail with reference to FIG.

The web browser 350 receives a request for a media segment file from a user via a URL or the like and inquires of the DNS proxy 360 about the internet protocol (IP) address of the media segment file. Thereafter, an HTTP streaming service can be provided to the user by using the IP address received from the DNS proxy 360.

The DNS proxy 360 analyzes the URL of the media segment file and stores the domain name of the HTTP streaming server of the media segment file. When the inquiry about the IP address of the media segment file requested by the web browser 350 is received, whether the requested media segment file can be provided from the content providing apparatus 300 is transmitted from the HTTP streaming server 100 via the communication network To be provided. That is, the DNS proxy 360 can determine whether the requested media segment file can be provided through the content providing device 300. [

3 is a diagram illustrating a media segment file stored in a content providing apparatus according to an embodiment of the present invention.

The control unit 320 stores media segments and meta information files, which are data related to HTTP streaming, among the broadcast data received through the broadcast receiving unit, in the local storage device. In this case, the controller 320 refers to the URL information of each media segment file received together with the media segment file, and stores the media segment in the local storage 340 in the same hierarchical structure as the file storage structure of the HTTP streaming server 100 Save the meta information file. The DNS proxy 360 analyzes the URL of the media segment file received from the broadcast receiving unit 310 and stores the domain name of the HTTP streaming server 100 that first transmitted the media segment file.

For example, if the domain name of the HTTP streaming server 100 connected through the communication network is "server.com ", the media segment of the media segment file and the video information of" video1 " And "video2 ", the URL of the media segment file is" http://server.com/video1/ file_name "and" http://server.com/video2/ file_name & quot ;. The control unit 320 may store the media segment and the meta information file in the same hierarchical structure in the local storage unit 340 based on the URL information.

That is, the control unit 320 creates the "video1" and "video2" directories in the root directory of the local HTTP server 330, and stores the media segment and the meta information file of the media segment file in the created directory. In practice, the media segment and meta information file of the media segment file may be stored in local storage 340.

Then, when the web browser 350 inquires about the IP address corresponding to the domain name indicated in the URL, the DNS proxy 360 transmits the local IP address of the content providing apparatus 300 to the web browser 350 as the IP address of the media segment file 350, and the web browser 350 can access the media segment file received through the broadcasting network in the same manner as accessing the HTTP streaming server.

For example, when the web browser 350 inquires of the IP address of the domain name displayed through the input URL, the DNS proxy 360 transmits a media segment file corresponding to the domain name identical to the inquired domain name to the content providing apparatus ( 300). If a media segment file corresponding to the same domain name as the inquired domain name is stored in the content providing apparatus 300, the DNS proxy 360 transmits the local IP address "127.0.0.1" to the web browser 350 do. Thereafter, the web browser 350 accesses "127.0.0.1" to provide an HTTP streaming service to the user.

4 is a flowchart illustrating a content providing method according to an embodiment of the present invention.

The method of providing the HTTP streaming service requested by the user is as follows.

The user requests HTTP streaming service by inputting a URL to the web browser 350 of the content providing apparatus 300 (S401).

Upon receiving the user's request, the web browser 350 delivers the domain name included in the URL to the DNS proxy 360 to obtain the IP address of the media segment file (S402).

The DNS proxy 360 searches the domain name of the media segment file acquired at the receiving step of the media segment file to check whether the media segment file requested by the user can be transmitted through the communication network or can be transmitted through the broadcasting network (S403 ). That is, the DNS proxy 360 compares the domain name of the URL input by the user with the domain name of the media segment file acquired at the receiving step of the media segment file.

If the media segment file requested by the user is a file stored in the content providing apparatus 300, the DNS proxy 360 delivers the local IP address of the content providing apparatus 300 to the web browser 350 (S404). That is, in the embodiment of the present invention, since the media segment file is stored in the local storage device in the same hierarchical structure as the layer of the HTTP streaming server 100, the DNS proxy 360 does not need to perform additional URL address processing on the domain name And can transmit the local IP address of the content providing apparatus 300 to the web browser 350. [

However, if the media segment file requested by the user is a file stored in the HTTP streaming server 100, the DNS proxy 360 delivers the IP address of the HTTP streaming server 100 to the web browser 350 (S405). At this time, the DNS proxy 360 can obtain the IP address of the HTTP streaming server 100 through the external DNS server.

As described above, according to the embodiment of the present invention, the content providing apparatus stores the media segment file received through the broadcasting network in the same structure as the layer of the HTTP streaming server 100, . In the embodiment of the present invention, the HTTP streaming content is provided as an example. However, the streaming content providing method and device according to an embodiment of the present invention may also be applied to a streaming content that can be provided in a manner similar to the HTTP streaming content. Can be applied.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

Claims (16)

As a streaming content providing method of a content providing apparatus,
Receiving a request for the streaming content from a user,
Determining whether a streaming file corresponding to the streaming content is stored in the content providing apparatus, and
When the streaming file is stored in the content providing apparatus, transmitting a local internet protocol (IP) address of the content providing apparatus to a web browser
The content providing method comprising the steps of: The method of claim 1,
Wherein the request is in the form of a uniform resource locator (URL). The method of claim 1,
Receiving at least one streaming file and a uniform resource locator (URL) of the at least one streaming file through a broadcasting network, and
Storing the at least one streaming file based on the URL
Further comprising the steps of: 4. The method of claim 3,
Wherein the storing step comprises:
Storing the at least one streaming file in a structure identical to the hierarchical structure of the streaming server indicated in the URL
The content providing method comprising the steps of: 5. The method of claim 4,
Wherein the storing step comprises:
Creating a directory in the local storage of the content providing apparatus that is the same as the directory of the streaming server, and
Storing the streaming file in a directory created in the local storage device
The content providing method comprising the steps of: 4. The method of claim 3,
Wherein the at least one streaming file comprises a media segment of the at least one streaming file and a meta information file for playing back the at least one streaming file
The content providing method comprising the steps of: 4. The method of claim 3,
Analyzing the URL of the at least one streaming file and storing the domain name of at least one streaming server that has respectively transmitted the at least one streaming file
Further comprising the steps of: 8. The method of claim 7,
Wherein the determining step comprises:
Comparing the domain name of the at least one streaming server with the domain name indicated in the request
The content providing method comprising the steps of: A content providing apparatus for providing streaming contents,
A web browser receiving a request for the streaming content from a user, and
Wherein the content providing apparatus determines whether a streaming file corresponding to the streaming content is stored in the content providing apparatus, and when the streaming file is stored in the content providing apparatus, IP) domain name server (DNS)
To the content providing apparatus. The method of claim 9,
Wherein the request is in the form of a uniform resource locator (URL). The method of claim 9,
A broadcast receiver for receiving at least one streaming file and a uniform resource locator (URL) of the at least one streaming file through a broadcasting network, and
Storing the at least one streaming file in a local storage device based on the URL,
Further comprising: 12. The method of claim 11,
Wherein,
And stores the at least one streaming file in the local storage device in the same structure as the hierarchical structure of the streaming server indicated in the URL. The method of claim 12,
Wherein,
And creates the same directory as the directory of the streaming server in the local storage, and stores the streaming file in a directory created in the local storage. 12. The method of claim 11,
Wherein the at least one streaming file comprises a media segment of the at least one streaming file and a meta information file for playing back the at least one streaming file. 12. The method of claim 11,
The DNS proxy,
And analyzes the URL of the at least one streaming file to store the domain name of at least one streaming server that has respectively transmitted the at least one streaming file. 16. The method of claim 15,
The DNS proxy,
And compares the domain name of the at least one streaming server with the domain name indicated in the request.
KR20140137946A 2013-10-21 2014-10-13 Method and apparatus for providing streaming contents KR20150045891A (en)

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KR1020130125531 2013-10-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9906824B2 (en) 2015-03-11 2018-02-27 Electronics And Telecommunications Research Institute Method and device for allocating media data to a superframe and transmitting a superframe in which a time length of media data corresponds to a time length of the superframe in a digital broadcasting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9906824B2 (en) 2015-03-11 2018-02-27 Electronics And Telecommunications Research Institute Method and device for allocating media data to a superframe and transmitting a superframe in which a time length of media data corresponds to a time length of the superframe in a digital broadcasting system

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