KR20180019427A - Apparatus of contents play control - Google Patents

Abstract

The present invention relates to content play control technology. A content play control apparatus comprises: a stream buffer unit; a user interface (UI) interaction control unit which controls UI interaction with a cloud station to overlay a UI window received from the cloud station on content being played currently (hereinafter, referred to as first content), and selects content (hereinafter, referred to as second content) to be played next; and a content play interaction control unit which controls content play interaction with the cloud station to indirectly request the selected second content to the streaming station, and maintains the size of transmission data to be transmitted from the stream buffer in the cloud station on the basis of the size of buffering data which can be currently played in the stream buffer unit.

Description

APPARATUS OF CONTENTS PLAY CONTROL [0002]

The present invention relates to a content reproduction control technique, and more particularly, to a content reproduction control device connected to a cloud platform based cloud platform, in which a multimedia content to be streamed is transcoded appropriately for a user environment, Level buffering to minimize a time delay due to communication overload.

A set top box (STB) is a device that connects to a television, receives signals from outside, converts them appropriately, and displays the contents on a television.

The set-top box technology based on the cloud platform can provide service in a virtual space without installing computing resources such as application and storage in each user's own set-top box, Even if a set-top box equipped with a central processing unit (CPU) is used, a high-quality multimedia contents service requiring a relatively high-performance CPU can be used relatively freely.

In the conventional cloud platform based set-top box technology, most of the content playback control is performed through the cloud server, which causes communication overload to the cloud server relatively, which is vulnerable to time delay.

Korean Patent Laid-Open Publication No. 10-2012-0095724 (Aug. 29, 2012) discloses a cloud computing environment in which cloud-computing based on a set-top box connected to a broadcasting network based on cloud computing, which provides server information generated and destroyed in real- A central server of a cloud computing system comprises: (A) collecting user environment information of the user set-top box from at least one predetermined main system; (B) receiving a service use request according to the user environment information from the user set-top box; (C) performing at least one of generation, designation and storage of a service resource corresponding to the user environment information; And (D) transmitting configuration information for using the service to the user set-top box.

Korean Patent Registration No. 10-1535809 (2015.07.06) discloses a method for providing a cloud streaming service in which a cloud streaming service capable of converging different kinds of contents such as video on demand (VOD), real-time broadcast, application, The present invention relates to a service providing method, a system and an apparatus for the same, and more particularly, to a service providing method, a system and an apparatus therefor, The first streaming data corresponding to the first content is received and decoded to acquire the first video data that is the execution screen of the first content, and the execution screen of the predetermined application, which captures the first streaming data, And various cloud streaming services So we can offer.

1. Korean Published Patent Application No. 10-2012-0095724 (Aug. 29, 2012) 2. Korean Patent No. 10-1535809 (2015.07.06)

An embodiment of the present invention provides a content playback control apparatus capable of minimizing a time delay due to communication overload by transcoding multimedia contents to be streamed appropriately to a user environment and introducing multi-level buffering in a content transmission process do.

An embodiment of the present invention is to provide a content playback control apparatus capable of synchronizing buffers with mutual feedback for maintaining a proper transmission data size during a buffering process, thereby facilitating transmission and reception of contents.

Among the embodiments, the content reproduction control apparatus controls UI (User Interface) interaction with the stream buffer unit and the cloud station, and transmits the UI window received from the cloud station to the currently reproduced content (hereinafter referred to as first content) A UI interaction control unit for overlaying and selecting a content to be played next (hereinafter, referred to as a second content) through the overlaid UI window, and a content playback interaction with the cloud station to control the selected second content to be indirect And a content playback interaction controller for maintaining the size of the transmission data to be transmitted in the stream buffer of the cloud station based on the size of buffering data that can be reproduced in the stream buffer unit.

The stream buffer unit receives and buffers transmission data from a stream buffer in the transcoding station, and transmits buffering data to be reproduced from the buffered data to a display station to reproduce an image in real time.

Wherein the content playback interaction controller controls the content playback interaction controller to change the size of the transmission data to be transmitted from the stream buffer in the transcoding station to the stream buffer based on the size of buffering data currently reproducible in the stream buffer, .

The content playback interaction control unit is adapted to transmit to the stream buffer at the transcoding station, from the stream buffer at the cloud station, based on the size of the buffering data transferable to the current stream buffer unit of the stream buffer at the transcoding station And request the cloud station to vary the size of the transmission data.

Wherein the content playback interaction controller is configured to provide the content playback catec description to the transcoding station in advance before indirectly requesting the second content to cause the transcoding station to detect the need for transcoding the second content, If necessary, the transcoding station may cause the second content to be transcoded by determining the codec included in the content reproduction portecording based on the workload of the transcoding station.

If the current communication state does not satisfy the predetermined criterion, the content reproduction interaction controller may control the codec to guarantee smooth streaming of the codec included in the content reproduction codec description regardless of the detection result of the necessity of the transcoding And perform selective transcoding.

Wherein the content playback interaction controller receives from the cloud station a playback interface that includes playback controls that are dependent on the characteristics of the selected second content and wherein the playback control is responsive to the interaction with the streaming source May be used to control playback of the second content.

Wherein the content reproduction interaction control unit detects a necessity of a license associated with reproduction of the second content and transmits the license to the cloud station through the interaction with the cloud station until the cloud station completes issuing the license from the license station Playback can be awaited.

The disclosed technique may have the following effects. It is to be understood, however, that the scope of the disclosed technology is not to be construed as limited thereby, as it is not meant to imply that a particular embodiment should include all of the following effects or only the following effects.

The content reproduction control apparatus according to an embodiment of the present invention may transcoding the multimedia contents to be streamed to the user environment and introducing multi-level buffering in the content transmission process to minimize the time delay due to communication overload.

The content reproduction control apparatus according to an embodiment of the present invention enables mutual feedback between the buffers to maintain the proper transmission data size during the buffering process so that transmission and reception of the content can be smoothly performed.

1 is a diagram for explaining a content reproduction control system according to an embodiment of the present invention.
Fig. 2 is a view for explaining the contents reproduction control apparatus shown in Fig. 1. Fig.
3 is a flowchart for explaining a process of controlling content reproduction in the content reproduction control apparatus shown in Fig.

The description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It is to be understood that the singular " include " or "have" are to be construed as including the stated feature, number, step, operation, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

In each step, the identification code (e.g., a, b, c, etc.) is used for convenience of explanation, the identification code does not describe the order of each step, Unless otherwise stated, it may occur differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present application.

1 is a diagram for explaining a content reproduction control system according to an embodiment of the present invention.

1, a content playback control system 100 includes a streaming station 110, a web application station 120 and a license station 130, a transcoding station 140, a cloud station 150, (Hereinafter referred to as a content reproduction control apparatus) 160 and a display station 170, which can be connected through a network or electrically connected.

The streaming station 110 may provide a streaming service for a specific content, and may correspond to a server that transmits previously stored data or live data transmitted from the encoding server to the cloud station 150. Here, streaming refers to a technique of transmitting a selected content file not only in a download manner, but in real time reproduction by transmitting only the amount of real-time playback in accordance with the network conditions of the user. In one embodiment, when the streaming station 110 receives a streaming request for a specific content from the cloud station 150, the streaming station 110 divides the streaming file into a plurality of fragmented files, and includes a header including associations with other fragments, To the station (150).

The web application station 120 corresponds to a middleware (software engine) that executes an application in the content playback control device 160 through HTTP (HyperText Transfer Protocol) on the Internet. The web application station 120 can provide a program execution environment and a database connection function, can manage a plurality of transactions, and can execute business logic to process business transactions.

The license station 130 inquires the information of the user using the content reproduction control device 160 at the request of the cloud station 150 and transmits a license related to the usage right for using the specific content of the user to the cloud station 150 To the server that performs the function of issuing the request.

The transcoding station 140 may receive or transcode all or some of the specific content from the cloud station 150 and may transmit the transcoded and buffered files to the content playback control device 160 in real time have. In one embodiment, the transcoding station 140 may be provided with a content reproduction cctech description including codec information reproducible from the content reproduction control apparatus 160 in advance before receiving the specific content, and may be provided from the cloud station 150 Upon receipt of the content, the necessity of transcoding the content may be detected based on the content reproduction portec description. If it is determined that the transcoding is necessary, the transcoding station 140 determines the codec included in the content reproduction portec description And transcoding the content. For example, the transcoding station 140 determines whether or not the content corresponds to a codec that can be reproduced by the content reproduction control apparatus 160 based on the content reproduction codec description previously provided from the content reproduction control apparatus 160 If the codec does not correspond to the reproducible codec, the corresponding content is received from the stream buffer in the cloud station 150, and the corresponding content is transcoded and stored in its own stream buffer, and the corresponding transcoded buffered data is transmitted to the content playback controller 160 ) In real time.

The cloud station 150 is connected to the streaming station 110, the web application station 120, the license station 130, the transcoding station 140, and the content reproduction control apparatus 160 to the content reproduction control apparatus 160 It is a virtual private server that can provide cloud computing. It can be implemented with virtualization technology that divides one physical server into several virtual servers. Here, cloud computing is an Internet-based computer technology in which a program is placed on a utility data server on the Internet and a content playback control device 160, which may correspond to a computer, a mobile phone, or a set-top box, Web-based software services. In one embodiment, the cloud station 150 may request the streaming station 110 associated with the content for interaction with the content playback control device 160 to select the playback of the particular content, 110 to the transcoding station 140, the buffering data stored in its own stream buffer can be transmitted to the transcoding station 140. [

The content reproduction control apparatus 160 may correspond to a computing apparatus that can communicate with the transcoding station 140, the cloud station 150, and the display station 170 via a network or in an electrically connected manner to reproduce contents. For example, the content playback control device 160 may be implemented as a set-top box, a desktop, a notebook, a tablet PC, or a smart phone. The content playback control device 160 can receive content playback related information including UI (User Interface) related to content playback from the cloud station 150 and indirectly request specific content to the streaming station 110 (E.g., via the station 150), receive the content from the transcoding station 140 and play the video in real time on the screen through the display station 170.

The display station 170 corresponds to an image display device connected to the content reproduction control device 160 and capable of visually expressing the content reproduction data received from the content reproduction control device 160. [ For example, the display station 170 may be implemented as a TV (Television) or a monitor.

Fig. 2 is a view for explaining the contents reproduction control apparatus shown in Fig. 1. Fig.

2, the content reproduction control apparatus 160 may include a UI interaction control unit 162, a content reproduction interaction control unit 164, a stream buffer unit 166, and a memory unit 168, Can be connected.

The UI interaction control unit 162 can control a UI (User Interface) interaction with the cloud station 150. Here, the UI means a command or technique used by the content reproduction control apparatus 160 to control data input or operation in connection with the overall operation of the content reproduction control. In one embodiment, the UI interaction controller 162 receives cloud computing from the cloud station 150 and receives the UI control optimized for the user, and receives a command related to the operation from the user based on the UI control And can control the interaction with the cloud station 150 related to the overall operation of the content reproduction control through the corresponding UI control.

The UI interaction control unit 162 can overlay the UI window received from the cloud station 150 on the currently playing content (hereafter referred to as the first content) and display the content to be played next , The second content) can be selected. In one embodiment, the UI interaction control 162 is associated with the playback control of the first content from the cloud station 150, associated with the list lookup control of the second content candidates, or associated with the selection control of the second content RTI ID = 0.0 > UI < / RTI > In one embodiment, the above-mentioned overlay means that the image corresponding to the first content and the image included in the UI control are overlapped and reproduced on the displayed screen. This means that the overlay is related to the user's current content playback control, And has a purpose to provide a smooth control interface.

The content playback interaction control unit 164 may control the content playback interaction with the cloud station 150 to indirectly request the selected second content to the streaming station 110. [ In one embodiment, the indirect request is a request to the streaming station 110 to request content from the streaming station 110 when the second content is selected via the overlaid UI window, but indirectly via the cloud station 150 It means to request. In one embodiment, the content playback interaction controller 164 indirectly requests the second content to the streaming station 110 so that the cloud station 150 can access the streaming station 110 (e.g., the streaming station 110) based on the Uniform Resource Locator (URL) To request the corresponding content. In one embodiment, the content playback interaction controller 164 may perform an indirect request for that content via the cloud station 150 via JavaScript, which is a type of programming language.

The content playback interaction control unit 164 can maintain the size of the transmission data to be transmitted from the stream buffer (not shown) in the cloud station 150 based on the size of the buffering data that can be reproduced at present in the stream buffer unit 166 have. In one embodiment, the stream buffer 166 may receive and buffer transmission data for the second content from the stream buffer in the transcoding station 140, It is possible to provide the content replay interaction control unit 164 with the amount of remaining amount information of the possible buffering data. In the above embodiment, the content playback interaction controller 164 determines, based on the buffer size data of the provided buffering data, information indicating that the buffer capacity is sufficient for the current amount of buffering data in the cloud station 150 And request adjustment of the transmission rate reduction of the transmission data to be transmitted from the stream buffer in the cloud station 150 to the stream buffer unit 166. If the amount of buffering data is small, To the stream buffer unit 166, and the content playback interaction control unit 164 may request the adjustment of the transmission rate of the transmission data to be transmitted from the stream buffer in the cloud station 150 to the stream buffer unit 166, The stream buffer unit 166 needs to transfer the stream data from the stream buffer in the cloud station 150 It is possible to maintain the size of the transmission data to an appropriate level

The content playback interaction control unit 164 transmits the streaming buffer interaction data to the stream buffer unit 166 from a stream buffer (not shown) in the transcoding station 140 based on the size of the buffering data that can be reproduced at present in the stream buffer unit 166 It may request the transcoding station 140 to vary the size of the transmission data to be transmitted. In one embodiment, the content playback interaction control unit 164 controls the content playback interaction controller 164 in the stream buffer in the transcoding station 140, based on Equation (1) below, which takes into account the size of buffering data currently reproducible in the stream buffer unit 166 It may request the transcoding station 140 to vary the transmission rate to approximate the proper transmission rate by measuring the proper transmission rate R of the transmission data to be transmitted to the stream buffer unit 166. [

[Equation 1]

(Where D _B1 corresponds to the size (byte) of the buffering data currently reproducible in the stream buffer unit 166 and D _M1 corresponds to the size (byte) of the buffering data to be currently reproduced in the stream buffer unit 166 R _M1 corresponds to the current transmission rate (bps) measured in the stream buffer unit 166 and R ₁ denotes transmission data to be transmitted from the stream buffer in the transcoding station 140 to the stream buffer unit 166 (Bps) < / RTI >

The content playback interaction control unit 164 controls the stream playback unit 160 to move the streams in the cloud station 150 based on the size of the buffering data that can be transferred to the current stream buffer unit 166 of the stream buffer (not shown) in the transcoding station 140. [ It may request the cloud station 150 to vary the size of the transmission data to be transmitted from the buffer to the stream buffer in the transcoding station 140. In one embodiment, the content playback interaction controller 164 determines, based on Equation 2 below, which takes into account the size of the buffering data that can be transferred to the current stream buffer 166 of the stream buffer in the transcoding station 140, The appropriate rate of transmission data to be transmitted to the stream buffer in the transcoding station 140 in the stream buffer 150 (not shown) in the cloud station 150 is measured and transmitted to the cloud station 150, It may request to vary the transmission rate.

&Quot; (2) "

(Where D _B2 corresponds to the size in bytes of buffering data that can be transferred to the current stream buffer portion 166 of the stream buffer at the transcoding station 140 and D _M2 corresponds to the size of the buffered data at the transcoding station 140 (Corresponding to a predetermined value) of the buffering data to be transmitted to the stream buffer unit 166 of the stream buffer (preset value), and R _M2 is the current transmission rate measured in the stream buffer in the transcoding station 140 And R ₂ denotes an appropriate transmission rate (bps) of transmission data to be transmitted from the stream buffer in the cloud station 150 to the stream buffer in the transcoding station 140)

The content playback interaction controller 164 may provide the content playback catech description to the transcoding station 140 in advance before indirectly requesting the second content so that the transcoding station 140 detects the need for transcoding of the second content , And if transcoding is required, the transcoding station 140 may cause the second content to be transcoded by having the codec included in the content reproduction codec description determined based on its workload. In one embodiment, the content reproduction codec description may include all of the codec information that can be reproduced in the content reproduction control apparatus 160. Here, the codec information refers to a technique and a kind of information for compressing multimedia information including voice and image.

In one embodiment, the content playback interaction controller 164 controls the content playback controller 160 to play back codec information (e.g., video: WMV9, H.264) reproducible before the streaming station 110 indirectly requests the second content. The transcoding station 140 may provide the transcoding station 140 with the video data of the MPEG-4 format, MPEG4 video, MP4, DIVX, xvid and MPEG2, audio: AC3, AAS, MP3, video resolution: 1270 x 870, The codec information is checked through a part (for example, extension) of the transmission data of the corresponding content received from the cloud station 150, and the codec list reproducible by the content reproduction control device 160 is compared with the codec list, Can be detected.

In one embodiment, when it is determined that the transcoding is necessary, the content reproduction interaction controller 164 determines, based on the following Equation (3), that the transcoding station 140 selects one of the plurality of codecs included in the corresponding content reproduction- To determine one codec that can be played back on the device 160 and selectable to transcode the second content received from the streaming station 110. [ In the above embodiment, when there are a plurality of selectable codecs, the content reproduction interaction controller 164 controls the transcoding station 140 to select one codec included in the first codec list having a low compression loss if L is less than 1.5 If L is equal to or greater than 1.5 and equal to or less than 3, one codec included in the second codec list having a middle compression loss is selected. If L is equal to or larger than 3, one codec included in the third codec list having a large compression loss You can choose to select a codec.

&Quot; (3) "

G (Grade) corresponds to the customer rating of the user currently using the content (for example, G = 1: Free customer, G = 2: paying customer, G = 3: premium customer)

If the current communication state does not satisfy the specific criterion, the content playback interaction controller 164 ensures smooth real-time streaming among the codecs included in the content reproduction codec description regardless of the detection result of necessity of transcoding The codec may be determined to allow selective transcoding. In one embodiment, when the transmission rate of the data of the second content buffered in the stream buffer unit 166 for a specific time is measured to be 100 Kbps (kilobits per second) or less, the content playback interaction controller 164 determines that the current communication state is unstable And the transcoding station 140 may perform selective transcoding with a codec that may provide higher compression loss than the codec included in the content reproduction codec description but may provide smoother live streaming.

The content playback interaction controller 164 may receive a playback interface from the cloud station 150 that includes playback controls that are dependent on the characteristics of the selected second content. In one embodiment, the playback control may be used to control playback on the second content through direct interaction with a streaming source associated with the content playback path. Here, the streaming source may correspond to the streaming station 110 or the transcoding station 140. In one embodiment, the content playback interaction controller 164 may send and receive interactions with the transcoding station 140 regarding playback and playback of the second content through the playback control that it has received. In one embodiment, the content playback interaction controller 164 may interact with the streaming station 110 directly with respect to playback and playback of the second content via the received playback control.

The content playback interaction controller 164 detects the necessity of the license associated with the reproduction of the second content and transmits the license from the license station 130 to the cloud station 150 through the interaction with the cloud station 150 The reproduction of the second content can be awaited. In one embodiment, the content playback interaction controller 164 may request the cloud station 150 for the current user's corresponding license existence and validation with respect to the playback of the second content for which a particular license is required, and the cloud station 150 May transmit the reproduction approval of the second content to the content reproduction interaction controller 164 if there is a valid license and may request the corresponding license issuance of the corresponding user to the license station 130 when there is no valid license, 150 transmits the license for reproduction of the second content to the cloud station 150 after storing the corresponding license in the license station 130, and when the issuance of the license is denied to the cloud station 150, No authority can be transmitted. In the above embodiment, when the license-related procedures are completed in the cloud station 150 corresponding to the virtual machine, the content playback interaction controller 164 reproduces the buffered data of the second content buffered in the stream buffer 166 So that the content can be streamed through the display station 170 in real time.

The stream buffer unit 166 receives and buffers the transmission data from the stream buffer in the transcoding station 140 and transmits the buffering data to be currently reproduced from the buffered data to the display station 170 to reproduce . In one embodiment, buffering refers to an operation of temporarily storing information and absorbing a difference in processing speed in order to facilitate transmission and reception of information. In one embodiment, the stream buffer unit 166 may buffer transmission data of the received second content in a specific area of the memory unit 168, and may store current data in the buffered data stored in the corresponding area of the memory unit 168 The buffering data to be reproduced is decompressed in the form of data reproducible in the display station 170 based on the codecs applicable in the content reproduction control device 160 previously stored in the specific area of the memory unit 168, ) So as to support real-time streaming playback of the corresponding content. In one embodiment, the stream buffer unit 166 may successively perform a series of processes of buffering other data in a storage space of the reproduced data of the buffered data after a specific time.

The memory unit 168 may be implemented as a volatile or nonvolatile memory and may be used to store data necessary for the overall operation of the content reproduction control apparatus 160. [ In one embodiment, the memory unit 168 may correspond to a buffer storage space for buffering transmission data received in the stream buffer unit 166. [ In one embodiment, when transmitting data from the transcoding station 140 to the stream buffer unit 166, the buffer may be used to compensate for the difference in transmission rate or processing speed between the two, .

3 is a flowchart for explaining a process of controlling content reproduction in the content reproduction control apparatus shown in Fig.

3A and 3B, the process of controlling content reproduction in the content reproduction control apparatus 160 may include the following steps.

First, the UI interaction control unit 162 may overlay the UI window received from the cloud station 150 on the currently playing content (hereinafter referred to as first content) (step S310).

Secondly, the UI interaction control unit 162 can select a content to be played next (hereinafter referred to as a second content) through the overlaid UI window (step S320).

Third, the content playback interaction control unit 164 may control the content playback interaction with the cloud station 150 to indirectly request the selected second content to the streaming station 110 (step S330).

Fourth, the content playback interaction controller 164 may receive a playback interface including the playback control depending on the characteristics of the selected second content from the cloud station 150 (step S340).

Fifth, the content playback interaction controller 164 may provide the content playback catech description to the transcoding station 140 in advance before indirectly requesting the second content so that the transcoding station 140 can determine the necessity of transcoding the second content And if the transcoding is necessary, the transcoding station 140 may determine the codec included in the content reproduction cctopic description based on the workload of the transcoding station 140, thereby transcoding the second content (step S350).

Sixth, if the current communication state does not satisfy the specific criterion, the content playback interaction controller 164 determines that the transcoding station 140 is more smooth than the codec included in the content reproduction codec description regardless of the result of detecting the necessity of transcoding (Step S360). ≪ / RTI >

The content playback interaction control unit 164 controls the stream buffer unit 166 in the stream buffer (not shown) in the transcoding station 140 based on the size of the buffering data that can be currently reproduced in the stream buffer unit 166. [ To the transcoding station 140 to vary the size of the transmission data to be transmitted to the transcoding station 140 (step S370).

The content playback interaction control unit 164 controls the content playback interaction control unit 164 based on the size of the buffering data that can be transmitted to the current stream buffer unit 166 of the stream buffer (not shown) in the transcoding station 140, To the cloud station 150 to vary the size of the transmission data to be transmitted from the stream buffer at the transcoding station 140 to the stream buffer at the transcoding station 140 (step S380).

Finally, the content playback interaction controller 164 detects the need for a license associated with the playback of the second content, and communicates with the cloud station 150 through the interaction with the cloud station 150 from the license station 130 The reproduction of the second content can be awaited until the issuance is completed (step S390).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

100: Content playback control system
110: streaming station 120: web application station
130: license station 140: transcoding station
150: Cloud Station
160: Content playback control device
162: UI interaction control unit 164: Content playback interaction control unit
166: stream buffer unit 168: memory unit
170: Display station

Claims (8)

A stream buffer unit;
(UI) interaction with the cloud station to overlay the UI window received from the cloud station on the currently playing content (hereinafter referred to as the first content) and to play the UI window over the overlayed UI window A UI interaction control unit for selecting a content (hereinafter referred to as a second content); And
A streaming station for indirectly requesting the selected second content by controlling the content playback interaction with the cloud station and for transmitting the stream to be transmitted in the stream buffer of the cloud station based on the size of the buffering data currently reproducible in the stream buffer unit And a content reproduction interaction control unit for maintaining the size of the data.
The apparatus of claim 1, wherein the stream buffer unit
Wherein the control unit receives and buffers the transmission data from the stream buffer in the transcoding station, and transmits the buffering data to be reproduced from the buffered data to the display station to reproduce the image in real time.
3. The apparatus according to claim 2, wherein the content reproduction interaction controller
And requests the transcoding station to vary the size of transmission data to be transmitted from the stream buffer in the transcoding station to the stream buffer unit based on the size of buffering data that can be reproduced in the stream buffer unit. The content playback control device.
4. The apparatus according to claim 3, wherein the content reproduction interaction controller
The size of the transmission data to be transmitted from the stream buffer at the cloud station to the stream buffer at the transcoding station may be varied based on the size of the buffering data that can be transmitted to the current stream buffer unit of the stream buffer at the transcoding station, To the cloud station.
5. The apparatus according to claim 4, wherein the content reproduction interaction controller
Wherein the transcoding station is provided with a content reproduction portecording to the transcoding station prior to indirectly requesting the second content to cause the transcoding station to detect the need for transcoding the second content, And determines the codec included in the content reproduction portecording based on its own workload so as to transcode the second content.
6. The apparatus according to claim 5, wherein the content reproduction interaction controller
If the current communication condition does not satisfy the specific criterion, the transcoding station determines a codec that guarantees smoother live streaming among the codecs included in the content reproduction codec description regardless of the detection result of the necessity of the transcoding, The content playback control apparatus comprising:
The apparatus according to claim 1, wherein the content reproduction interaction controller
Receiving a playback interface from the cloud station, the playback interface including playback control dependent on a characteristic of the selected second content,
Wherein the playback control is used to control playback of the second content by causing an indirect interaction with the streaming source to proceed through the cloud station.
The apparatus according to claim 1, wherein the content reproduction interaction controller
Detecting a necessity of a license associated with reproduction of the second content and waiting for reproduction of the second content until the cloud station completes issuing of the license from the license station through interaction with the cloud station To the content playback control unit.

Images