WO2013081270A1

WO2013081270A1 - Method for providing advertising images in streaming service and apparatus for streaming service using same

Info

Publication number: WO2013081270A1
Application number: PCT/KR2012/005728
Authority: WO
Inventors: 박명순
Original assignee: 주식회사 솔박스
Priority date: 2011-11-28
Filing date: 2012-07-18
Publication date: 2013-06-06

Abstract

A streaming service apparatus transmits advertising images and video data desired to be serviced through one streaming session, combines a list file of the advertising images and a list file of the video data into a streaming list file, and transmits the streaming list file through one streaming session to a client. Also, a data file corresponding to a request from a client is transmitted to the client.

Description

Method of providing advertisement image in streaming service and streaming service device using same

The present invention relates to a method for providing an advertisement image in a streaming service and a streaming service apparatus using the same.

Streaming services for reproducing multimedia data in real time through the Internet are being activated. Accordingly, a method of exposing advertisement images in a streaming service has been widely used.

In general, in order to provide a streaming service, a streaming server and a real-time streaming encoder are used in a live service, and a streaming server and a video file are used in a video on demand (VOD) service. For example, in order to expose the advertisement image in the streaming server, the advertisement image is previously included in the video before encoding. Specifically, before encoding, the LIVE / VOD video and the advertisement video are combined and processed into one video, and the processed video is provided to the client through one streaming session. The client receives and plays the combined video of the LIVE / VOD video and the advertisement video as a single video through a single streaming session, so that there is no video drop due to buffering between the LIVE / VOD video and the advertising video.

However, in the case of such a streaming service, it is possible to expose the same advertisement to LIVE / VOD viewers, but not individualized advertisement exposure for each viewer. Also, it is not possible to replace the advertisement video in the encoded video by combining the LIVE / VOD video and the advertising video.

Meanwhile, as described above, there is a method of encoding an LIVE / VOD image and an advertisement image separately, and reproducing the LIVE / VOD image and the advertisement image through separate streaming sessions.

This method sequentially plays LIVE / VOD video and advertisement video which are transmitted through different streaming sessions from clients. Therefore, the client should have a function to switch between LIVE / VOD video and advertising video. Also, when playing the video on the client, video dropping occurs due to buffering between the LIVE / VOD video and the advertising video.

The present invention has been made in an effort to provide an advertisement image providing method and a streaming service apparatus using the same, which can expose an advertisement image more efficiently during a streaming service.

A method according to an aspect of the present invention is a method for providing an advertisement video when a streaming service device provides a streaming service to a client, and fragments the video data to be serviced to generate a plurality of first image fragment files and a first list file. Generating; Fragmenting the advertisement image to generate a plurality of second image fragment files and a second list file; And generating a streaming file by combining the first image fragment file and the second image fragment file, and transmitting the generated streaming file to the client through one streaming session.

Here, the streaming service device transmits a streaming list file combining the first list file of the first image fragment file of the video data to be serviced and the second list file of the second image fragment file of the advertisement video to the client. It may further comprise a step. In this case, transmitting the streaming file to the client through one streaming session may include receiving a file request from the client; And checking the video fragment file corresponding to the file request from the video conversion table and transmitting the identified video fragment file to the client.

Meanwhile, the first video fragment file or the second video fragment file is matched to the video conversion table in correspondence with the streaming file, and indicates a play time of the matched video fragment file and whether the corresponding video fragment file is video data or an advertisement video. The identification code may be further matched.

The advertisement image may be provided to the client in one of a first advertisement exposure method exposed before playing the video data and a second advertisement exposure method exposed after playing the video data, and the first advertisement exposure method or the The order in which the first image fragment file and the second image fragment file are arranged in the streaming list file may vary according to a second advertisement exposure scheme.

In addition, the method may further include receiving a parameter for selecting a type of an advertisement image and an exposure method of the advertisement image from the client, and according to the advertisement image and the exposure method of the type corresponding to the received parameter, to the client. Streaming files can be sent.

According to another aspect of the present invention, there is provided a method of providing an advertisement image when a streaming service device provides a streaming service to a client, the streaming service device receiving a request from the client; If the received request corresponds to a list file, transmitting, by the streaming service device, a streaming list file combining a list file for video data to be serviced and a list file for an advertisement video to the client; And when the received request is a file, transmitting the streaming file combining the file for the video data and the file for the advertisement video to the client.

The transmitting of the streaming list file to the client may include loading streaming session information while a streaming session with the client is established; And generating a streaming list file of a plurality of first image fragment files generated by fragmenting the video data according to the streaming session information and a plurality of second image fragment files generated by fragmenting the advertisement video, and transmitting the generated streaming list files to the client. It may include the step.

Meanwhile, when the received request corresponds to a list file and a streaming session with the client is not established, determining a type of advertisement image to be provided to the client and determining a method of exposing the advertisement image; Generating streaming session information based on the determined type of advertisement video, the exposure scheme, and video data to be serviced; And generating a streaming list file based on the streaming session information and transmitting the generated streaming list file to the client.

In the method having such a feature, the streaming session information includes a first image fragment file obtained by fragmenting the video data and first data fragment information including first metadata about the first image fragment file, and a second image fragmented by the advertisement image. Advertisement image information including second metadata about the second image fragment file and the second image fragment file, and a video conversion table in which the first image fragment file or the second image fragment file information is matched to correspond to the streaming file. can do.

In this case, the step of transmitting the file corresponding to the request of the client to the client, based on the video conversion table, the first file corresponding to the streaming file included in the request provided from the client receiving the streaming list file Identifying an image fragment file or a second image fragment file; And transmitting the identified first image fragment file or second image fragment file to the client.

Here, the streaming service device may provide the streaming service to the client using the HTTP LIVE STREAMING protocol.

Streaming service apparatus according to another aspect of the invention, the first encoder for encoding the video data to be serviced; A second encoder for encoding an advertisement video; And a streaming server which processes the encoded video data output from the first encoder and the encoded advertisement video output from the second encoder as a streaming video, and transmits the streaming video to the client through one streaming session. . Here, the streaming server provides the streaming list file generated based on the list file for the files fragmented with the video data and the list file for the files fragmented with the advertisement video to the client through one streaming session.

The streaming server may include: a first fragmentation processor configured to fragment the encoded video data to generate a plurality of first image fragment files, and to generate metadata about the generated first image fragment file; A second fragmentation processor configured to generate a plurality of second image fragment files from the encoded advertisement image and to generate metadata about the generated second image fragment file; A streaming processor configured to form a streaming session and transmit a streaming file based on the first image fragment files and the second image fragment files to the client through one streaming session; And a streaming session information manager configured to store and manage streaming session information related to the streaming session.

In addition, the streaming service apparatus may further include a request receiving unit for receiving a request from the client, in which case the streaming processing unit generates a streaming session and the streaming session information related thereto; A list file transmitter for providing a list file to the client based on first metadata or second metadata when the request from the client requests a list of files to be transmitted; And a video file transmission unit for transmitting the corresponding streaming file to the client when the request from the client is an image file for the advertisement image or the video data.

In addition, when the client request includes information on the type or exposure method of the advertisement image, the streaming service apparatus sets a method of selecting an advertisement image to be included in the streaming image and exposing the selected advertisement image according to the request. It may further include an advertisement processing unit.

The advertisement processor may receive information for requesting an advertisement type or exposure method for an advertisement image based on a GET parameter, a POST parameter, or a cookie according to HTTP (hyper text transfer protocol) from a client.

According to an embodiment of the present invention, first, the client receives the video data including the advertisement video through one streaming session, so that a separate function for advertisement exposure is not required. Therefore, device dependency for advertisement implementation is eliminated.

Second, video data (LIVE / VOD video, etc.) and advertisement video are transmitted through one streaming session, thereby eliminating video drop due to buffering in the process of switching the video data and the advertisement video. Finally, personalized advertising can be implemented by varying the advertising video type and the advertising video exposure method for each streaming session.

1 is a diagram showing the structure of a streaming service apparatus according to an embodiment of the present invention.

2 is a diagram showing the structure of a streaming server according to an embodiment of the present invention.

3 is a diagram illustrating streaming session information according to an embodiment of the present invention.

4 and 5 are diagrams schematically illustrating an operation process between a client and a streaming service apparatus according to an exemplary embodiment of the present invention.

6 illustrates an example of a format of an M3U8 list file according to an embodiment of the present invention.

7 is an exemplary diagram illustrating an update process of a video conversion table according to an embodiment of the present invention.

8 is a diagram illustrating a concept of first and second advertisement exposure schemes according to embodiments of the present invention.

9 is a diagram illustrating a process of exposing a LIVE image according to a first advertisement exposure method according to an embodiment of the present invention, and FIGS. 10A and 10B are lists of M3U8s provided to clients according to the advertisement exposure process illustrated in FIG. 9. An example diagram showing a file and a video conversion table.

FIG. 11 is a diagram illustrating a process of exposing a LIVE image according to a second advertisement exposure method according to an embodiment of the present invention, and FIGS. 12A and 12B are M3U8 lists provided to clients according to the advertisement exposure process shown in FIG. 11. An example diagram showing a file and a video conversion table.

FIG. 13 is a diagram illustrating a process of exposing a VOD image according to a first advertisement exposure method according to an embodiment of the present invention, and FIGS. 14A and 14B are lists of M3U8s provided to clients according to the advertisement exposure process shown in FIG. 13. An example diagram showing a file and a video conversion table.

FIG. 15 is a view illustrating a process of exposing a VOD image according to a second advertisement exposure method according to an embodiment of the present invention, and FIGS. 16A and 16B illustrate an M3U8 list provided to a client according to the advertisement exposure process illustrated in FIG. 15. An example diagram showing a file and a video conversion table.

17 is an exemplary view showing a personalized advertisement providing process according to an embodiment of the present invention.

18 is a flowchart illustrating an advertisement image providing method according to an exemplary embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, except to exclude other components unless specifically stated otherwise.

Hereinafter, an advertisement image providing method and a streaming service apparatus using the same according to an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the streaming service apparatus 1 according to an exemplary embodiment of the present invention includes a first encoder 10, a second encoder 20, and a streaming server 30, and transmits a streaming video to a client. Provided by (2).

The first encoder 10 encodes video data to be serviced. Video data to be provided includes live video provided in real time and video on demand video provided on demand.

The second encoder 20 encodes the advertisement video. The advertisement video may be made in various forms and may be provided for each individual. Advertisement can be selected from a web server or an ad server (not shown), and the type of advertisement video can be selected from the streaming server using GET parameters or cookies according to HTTP (hyper text transfer protocol). And information about the exposure method.

The streaming server 30 sequentially connects the encoded video data (eg, LIVE / VOD video) output from the first encoder 10 and the encoded advertisement video output from the second encoder 20 to generate one streaming video. Process to the client 2 through one streaming session.

In particular, the streaming server 30 according to an embodiment of the present invention fragments the encoded video data to generate a plurality of image fragment files, and also generates metadata to access the generated image fragment files. Image fragment files generated by fragmenting moving image data are referred to as " first TS (transport stream) files " below, and metadata for the first TS files is referred to as " first meta data ".

In addition, the streaming server 30 fragments the encoded advertisement image data to generate a plurality of image fragment files, and also generates metadata for accessing the generated image fragment files. The image fragment files generated by fragmenting the advertisement image data are hereinafter referred to as "second TS files", and metadata about the second TS files is referred to as "second metadata".

The streaming server 30 generates TS files by dividing the input data at regular time intervals, and combines the first TS files for the video data to be serviced with the second TS files for the advertisement video and the streaming file (hereinafter, referred to as the TS file). Is called a streaming TS file) and transmitted to the client 2.

The first metadata and the second metadata provide the client 2 with information about which files to play (e.g., a list of TS files to play), and the client 2 provides first and second metadata. Request files to be played back to the streaming server 30 based on the information including the information. The streaming server 30 provides corresponding files in response to a request from the client 2, and for this purpose, includes a translation table.

As shown in FIG. 2, the streaming server 30 fragments the encoded video data to generate first TS files, and generates a first fragmentation processor 31 to generate first metadata for the first TS files. The second fragmentation processor 32 generates fragmentation of the encoded advertisement video data to generate second TS files, and generates second metadata of the second TS files, and forms a streaming session and through one streaming session. Streaming processing unit 33 for transmitting a streaming TS file based on the first TS files and the second TS files to the client (2), and a streaming session information management unit for storing and managing streaming session information for providing a streaming service ( 34).

In addition, the streaming server 30 may include a request receiving unit 35 that receives a request from a client, and when the client's request includes information about a type or an exposure method of the advertisement image, the streaming server 30 may be included in the streaming image according to the request. The apparatus may further include an advertisement processor 36 that selects an advertisement image and sets a method of exposing the selected advertisement image.

When the request from the client requests a list of files to be transmitted, the streaming processor 33 provides a list file transmitter 331 which provides the list file to the client based on the first metadata or the second metadata, and the client. If the request from the video file for the advertisement video or video data, the video file transmission unit 332 for transmitting the corresponding streaming TS file to the client (2). And a session processor 333 for generating a streaming session and generating streaming session information related thereto.

The list file transmitter 331 combines the list file based on the first metadata and the list file based on the second metadata to generate a streaming list file to be delivered to the client, and generates the streaming list file in one streaming session. Can be provided to the client through.

The advertisement processor 36 receives a request for requesting information about an advertisement image using a GET parameter or a cookie according to HTTP (hyper text transfer protocol) from a client, and selects and displays an advertisement according to the request. Can be. The advertisement image exposure method according to an embodiment of the present invention includes a first advertisement exposure method for exposing the advertisement image before playing the video data and a second advertisement exposure method for exposing the advertisement image after playing the video data. This will be described in more detail later.

Meanwhile, the streaming session information is information about a streaming session for providing a streaming service including an advertisement video according to an embodiment of the present invention and includes information as shown in FIG. 3.

The streaming session information SI includes the moving image data image information I1, the advertisement image information I2, the streaming image information I3, and the moving image conversion table I4. The moving image data image information I1 includes a first TS file obtained by fragmenting moving image data and first metadata. The advertisement image information I2 includes a second TS file and second metadata obtained by fragmenting the advertisement image. The streaming video information I3 includes a start time of streaming the video and a video number. Here, the video number represents an identification number for the video data for streaming service. The video conversion table I4 matches the first TS file or the second TS file information corresponding to the streaming TS file.

The streaming service apparatus 1 according to the embodiment of the present invention having such a structure encodes the video data and the advertisement video separately, and transmits them to the client 2 through one string session.

The streaming service apparatus 1 according to an embodiment of the present invention transmits a streaming video to the client 2 by using the HTTP LIVE STREAMING protocol for transmitting the fragmented media file using the HTTP protocol. In the HTTP LIVE STREAMING protocol, it is possible to combine LIVE / VOD video and advertising video into one streaming session without performing decoding / encoding for video codec and DEMUX / MUX and video codec on the streaming server. In this example, a streaming service is provided based on the HTTP LIVE STREAMING protocol. However, the present invention is not limited to the HTTP LIVE STREAMING protocol, but may be applied to other protocols (for example, Microsoft's Smooth Streaming and Adobe's HTTP Dynamic Streaming) that use a method of fragmenting a media file and transmitting the HTTP file. Can be.

Next, an operation of the streaming service device 1 according to an embodiment of the present invention will be described based on the HTTP LIVE STREAMING protocol.

In an embodiment of the present invention, the client 2 controls the video streamed, and the streaming service device 1 transmits TS files and metadata for playback according to a request from the client 2. To pass). The client 2 receives the metadata and the TS files, and continuously plays the received TS files. This produces the same effect as playing one large file.

4 and 5 are diagrams schematically illustrating an operation process between a client and a streaming service apparatus according to an exemplary embodiment of the present invention. 4 is a diagram illustrating a streaming service of a LIVE video, and FIG. 5 is a diagram illustrating a streaming of a VOD video.

According to the HTTP LIVE STREAMING protocol, the first metadata and the second metadata may be implemented as an M3U8 list file. The names of the TS files in the M3U8 list file consist of non-negative integers which sequentially increase in order of execution.

As shown in FIG. 4, in response to a request S10 from the client 2, M3U8 list files, which are information about a video to be played by the streaming server 30 of the streaming service device 1, are transmitted to the client 2. (S11). The M3U8 list file includes information on a plurality of TS files (for example, one to three) required for current playback. When streaming LIVE video, the M3U8 list file does not end with "# EXT-X-ENDLIST".

The client 2 requests a TS file (for example, MEDIA_1.TS) to play according to the received M3U8 list file (S12), and the streaming server 30 sends the TS file corresponding to the client's request. (S13), the client 2 plays the received TS file.

In addition, the client 2 periodically checks whether the M3U8 list file has been changed (S14, S15), and requests newly provided TS files to the streaming server 30 according to the change to be provided and played back (S16, S17). .

Meanwhile, when streaming a VOD video as shown in FIG. 5, the streaming server 30 provides an M3U8 list file according to a request from the client 2 (S20, S21), and the # EXT-X-ENDLIST tag is included in the M3U8 list file. Included.

The client 2 does not request and transmit all TS files included in the M3U8 list file, and plays back a plurality of TS files (for example, one to several) in advance in accordance with the capacity of the client's playback buffer (not shown). Before it can be provided from the streaming server (30). Accordingly, as shown in FIG. 5, the streaming server 30 requests a TS file (for example, MEDIA_1.TS, MEDIA_2.TS, MEDIA_3.TS) to play some of the TS files included in the received M3U8 list file. It is provided (S22 ~ S27).

Meanwhile, the M3U8 list file has the following format.

6 illustrates an example of a format of an M3U8 list file according to an embodiment of the present invention. FIG. 6A illustrates an example of a format of an M3U8 list file when streaming a VOD video, and FIG. 6B illustrates an example of a format of an M3U8 list file when streaming.

As illustrated in FIGS. 6A and 6B, the M3U8 list file corresponding to the first and second meta data is listed in a directive ## TM3U, indicating that the file uses the M3U8 format. Directive indicating the maximum playback time of each file (# EXT-X_TARGETDURATION), directive indicating the serial number of the file to be played first (# EXT-X-MEDIA-SEQUENCE), and playback time of the TS file following the directive It includes a directive (#EXTINF) indicating, and optionally also includes a directive (# EXT-X-ENDLIST) indicating that there are no more files to play in the list file.

According to the M3U8 list file illustrated in FIG. 6A, the TS files to be played have "media_1.ts, ..., media_100.ts", and the playback time of each TS file is "10 seconds", and the maximum playback time is "11. Seconds ", and the list of files related to the VOD image according to the directive # EXT-X-ENDLIST. In addition, according to the M3U8 list file illustrated in FIG. 6B, the TS files to be played include "media_101.ts, media_102.ts, and media_103.ts", and the playback time of each TS file is "10 seconds", and the maximum playback is performed. Since the time is "11 seconds" and there is no directive (# EXT-X-ENDLIST), it can be seen that it is a list of files related to the LIVE video.

The streaming service apparatus 1 according to an embodiment of the present invention is a metadata for the first M3U8 list file, which is metadata for the first TS files that have carved video data, and the second TS file, which has fragmented an advertising video. The second M3U8 listing file is combined and provided to the client 2 via one streaming session.

The M3U8 list file of the LIVE streaming service may change over time, for example, when a new TS file is created. The client 2 can request and play the TS file added to the changed M3U8 list file. The client 2 requests the M3U8 list file within 0.5 times to 1.5 times the time specified in the directive (#EXTINF) for the last TS file included in the M3U8 list file to confirm the change in the M3U8 list file. You can check whether it is changed. On the other hand, in the VOD streaming service, there is no change in the M3U8 list file, and the client receives the M3U8 list file only once.

In order to provide the client with a corresponding TS file in response to a request from the client 2 based on the M3U8 list file, the exemplary embodiment of the present invention uses the video conversion table I4.

In the video conversion table I4, the first TS file or the second TS file information is matched to correspond to the streaming TS file. Table 1 is a diagram illustrating the structure of the video conversion table according to an embodiment of the present invention.

Table 1

Request file	Answer file	Play time	division
media_1.ts	ad_1.ts		10 sec	Advertising
media_2.ts	ad_2.ts		10 sec	Advertising
media_3.ts	ad_3.ts		10 sec	Advertising
media_4.ts	vod_1.ts		10 sec	original
media_5.ts	vod_2.ts		10 sec	original

Here, the original represents moving image data (LIVE / VOD image).

According to an embodiment of the present invention, the M3U list file provided to the client 2 is created based on the first and second metadata, and the content includes all or part of the first TS files and the second TS files.

Streaming TS files may be represented as "media_n.ts (where n = 1, 2, 3, ...)", and the first TS file corresponding to the video data to be serviced is "vod_n.ts" or "live_n.ts". " The second TS file corresponding to the advertisement video may be represented as "add_n.ts".

The M3U8 list file provided to the client includes a list of streaming TS files, and when the request for a predetermined streaming TS file is input based on the list, the streaming service device 1 receives the first TS file corresponding to the request. Or find the second TS file and respond to the client. To this end, in the video conversion table I4, as shown in Table 1, a first TS file or a second TS file corresponding to a streaming TS file is matched. The playing time of the matched TS file is further matched with a division code indicating whether the TS file is an advertisement video or video data. For example, the response file "ad_1.ts" is matched with the streaming TS file media_1.ts. The response time of the response file "ad_1.ts" is 10 seconds, and "ad_1.ts" is the advertisement image. Is identified.

Based on the video conversion table, the VOD M3U8 list file provided to the client may be implemented as shown in Table 2 below.

TABLE 2

As shown in Table 2, the M3U8 list file provided to the client includes the M3U8 list file, which is metadata about the first TS files, which sculpted the video data, and the M3U8 list file, which is metadata about the second TS file, which sculpted the advertising video. Include.

The M3U8 listing file provided to the client starts with # EXT3U, for example, and indicates that the maximum playback time of each file listed using # EXT-X_TARGETDURATION: 11 is 11 seconds. The file name "media_1.ts" is displayed along with #EXTINF: 10 indicating the playback time of each file. According to # EXT-X-ENDLIST, it can be seen that the corresponding M3U8 list file relates to the VOD image.

When the GET request for the "meda_1.ts" file is received from the client 2 that receives the M3U8 list file having the structure as shown in Table 2, the streaming service device 1 based on the video conversion table I4, the "meda_1.ts". It is confirmed that the file corresponding to "ad_1.ts" is transmitted, and the confirmed "ad_1.ts" is transmitted to the client 2. Similarly, requests from "ad_2.ts" for requests from "media_2.ts", "ad_3.ts" for requests from "media_3.ts", "vod_1.ts" for requests from "media_4_ts", and media_5.ts Send "vod_2.ts".

Fragmented TS files for live video continue to be generated during the streaming service. When the newly fragmented TS file is generated, the video conversion table I4 is updated in consideration of the fragmented TS file for the advertisement image.

For example, when a new fragmented file TS file (for example, live_4.ts) for a LIVE video is generated while a video conversion table having a structure as shown in FIG. 7A is formed, FIG. As shown in FIG. 7B, the video conversion table is updated to include a new fragmented file TS file. Here, the video conversion table is updated as shown in FIG. 7B according to the LIVE video input in 10 seconds in the video conversion table illustrated in FIG. 7A. Then, when a list file request is input from the client 2, unlike the previous M3U8 list file based on the changed video conversion table, the M3U8 list file including the changed information of the video conversion table is provided to the client 2.

Meanwhile, the streaming service apparatus 1 according to an embodiment of the present invention may be one of a first advertisement exposure method for exposing an advertisement image before playing video data and a second advertisement exposure method for exposing an advertisement image after playing video data. Accordingly, the advertisement image may be provided.

In the first advertisement exposure method, as shown in FIG. 8A, the advertisement image is exposed before playing the video data (LIVE / VOD image). That is, before the time t1 when the video data is streamed, the advertisement video is exposed for a time t0 to t1.

In the second advertisement exposure method, as shown in FIG. 8B, the advertisement image is exposed after the video data (LIVE / VOD image) is played. That is, after the time t0 to t1 when the video data is streamed, the advertisement video is exposed for the time t1 to t2. The first advertisement exposure method is more effective than the second advertisement exposure method in the advertisement video exposure effect in the internet video streaming service.

A method of exposing an advertisement for each video data will be described in more detail.

When streaming a LIVE video, as shown in (A) of FIG. 9, it is assumed that the LIVE video is transmitted during t0 ~ t3 time. In the case of a live video, the client receives the live video service after t0 when the live video transmission starts due to its service characteristics. Therefore, when the client starts to play the video provided by t1, the streaming service device 1 is connected to FIG. As in B), the advertisement video is transmitted from t1 to t2. When the advertisement video ends, the LIVE video is transmitted from t2 as shown in FIG. 9 (C). The period during which the client 2 plays back the video is from t1 to t3, and the total playback time is a time corresponding to "t3-t1".

For this advertisement exposure, for example, as shown in FIG. 10A, a LIVE image and an advertisement image to be streamed are fragmented, processed into TS files, and M3U8 list files corresponding to metadata are generated. That is, the M3U8 list file corresponding to the LIVE video and the M3U8 list file corresponding to the advertising video are generated, and the M3U8 list file corresponding to the LIVE video and the advertisement, as shown in FIG. 10B, based on the video conversion table I4. A streaming list file in which the M3U8 list file corresponding to the video is combined, that is, the streaming M3U8 list file, is generated. In this case, the streaming TS files (media_1.ts to media.3.ts) corresponding to the advertisement video are first described in the streaming M3U8 list file to expose the advertisement video first, and the streaming TS files corresponding to the LIVE video. (media_4.ts ~ media_6.ts) are subsequently described sequentially. When a request is input from the client according to the streaming M3U8 list file, the streaming service device 1 performs the advertisement video TS files (ad_1.ts) corresponding to media_1.ts to media.3.ts based on the video conversion table I4. ~ ad_3.ts), and then LVIE video TS files (live_104.ts ~ live_106.ts).

As shown in FIG. 11A, when the LIVE video is transmitted during t0 to t3 time, when the client starts playing the video provided by t1, the streaming service device 1 performs the LIVE as shown in FIG. 11B. Transmit video from t1 to t2. When the LIVE video ends, the advertisement video is transmitted from t2 as shown in FIG. The period during which the client 2 plays back the video is from t1 to t3, and the total playback time is a time corresponding to "t3-t1".

12A, for example, as shown in FIG. 12A, the M3U8 list file corresponding to the live image and the M3U8 list file corresponding to the advertisement image are combined based on the video conversion table I4. Create a streaming M3U8 listing file. In this case, the streaming TS files (media_1.ts to media.6.ts) corresponding to the LIVE video are first described in the streaming M3U8 list file to expose the advertisement video after the LIVE video, and then the streaming corresponding to the advertisement video. TS files (media_7.ts to media_9.ts) are described next. When a request is input from the client according to the streaming M3U8 list file, the streaming service device 1 performs live video TS files corresponding to media_1.ts to media.6.ts based on the video conversion table I4 (live_101.ts). ~ live_106.ts), and then the advertisement video TS files (ad_1.ts ~ ad_3.ts).

Even when the VOD video is streamed instead of the live video, the advertisement is exposed similarly to the above description according to the first advertisement exposure method or the second advertisement exposure method.

When streaming the VOD image, the client 2 may play the VOD image from the beginning according to its service characteristic. As shown in FIG. 13A, when a VOD video is serviced for t1 to t2 according to a client's request, the streaming service device 1 provides an advertisement video for t0 to t1 time as shown in FIG. 13B. After t1, a VOD image is provided as shown in FIG. 13C. The playback period during which the client plays back the video is t0 to t2, and the total playback time (total playback time when the playback position shift or double speed playback is not taken into account) is a time corresponding to "t2-t1".

For this advertisement exposure, for example, as shown in FIG. 14A, a VOD image and an advertisement image to be streamed are fragmented, processed into TS files, and M3U8 list files corresponding to metadata are generated. In this case, the M3U8 list file corresponding to the VOD video according to the VOD video service characteristic may include all lists of TS files of the VOD video to be serviced. Based on the video conversion table I4, as shown in FIG. 14B, a streaming M3U8 list file is generated in which an M3U8 list file corresponding to the VOD image and an M3U8 list file corresponding to the advertisement image are combined. In this case, the streaming TS files (media_1.ts to media.3.ts) corresponding to the advertisement video are first described in the streaming M3U8 list file to expose the advertisement video first, and the streaming TS files corresponding to the LIVE video. (media_4.ts ~ media_103.ts) are described next. When a request is input from the client according to the streaming M3U8 list file, the streaming service device 1 performs the advertisement video TS files (ad_1.ts) corresponding to media_1.ts to media.3.ts based on the video conversion table I4. ~ ad_3.ts), and then VOD video TS files (vod_1.ts ~ vod_100.ts).

As shown in FIG. 15A, when the VOD image is transmitted during t0 to t1 time, the streaming service device 1 transmits the VOD image to t0 to t1 as shown in FIG. 15B. When the VOD image is finished, the advertisement image is transmitted from t1 to t2 as shown in FIG. 15C. The period during which the client 2 plays the video is from t0 to t2, and the total reproduction time is a time corresponding to "t2-t0".

For this advertisement exposure, for example, as shown in FIG. 16A, the M3U8 list file corresponding to the VOD image and the M3U8 list file corresponding to the advertisement image are combined on the basis of the video conversion table I4, as shown in FIG. 16B. Create a streaming M3U8 listing file. In this case, in order to expose the advertisement video after the VOD image, the streaming M3U8 list file first describes streaming TS files (media_1.ts to media.100.ts) corresponding to the VOD image, and then streams the advertisement image. TS files media_101.ts to media_103.ts are described next. When a request is input from the client according to the streaming M3U8 list file, the streaming service device 1 performs VOD video TS files corresponding to media_1.ts to media.100.ts based on the video conversion table I4 (vod_1.ts). ~ vod_100.ts), and then the advertisement video TS files ad_1.ts ~ ad_3.ts.

In an embodiment of the present invention, as described above, the metadata for causing the advertisement image to be exposed before or after the reproduction of the video data (LIVE / VOD image) according to the first advertisement exposure method or the second advertisement exposure method. The streaming M3U8 list file) is provided to the client through one streaming session, and the corresponding advertisement video or video data to be serviced is replayed in response to the client's request.

In order to expose such an advertisement, the configuration of the video conversion table I4 according to an embodiment of the present invention will be described in detail as follows.

The first TS files fragmenting the LIVE video, which is the video data to be serviced, have "live_M1.ts to live_M2.ts" (where M1 and M2 are nonnegative integers, M1 <M2). 2 Assume that TS files have "ad_1.ts to ad_N.ts" (where N is an integer greater than 1). Streaming TS files "media_1.ts to media_T.ts (advertising video + LIVE video)" (where T is an integer greater than 1) are generated by combining the first TS files and the second TS files.

First, when the LIVE image is to be exposed according to the first advertisement exposure method, in order to stream these TS files, the total number of TS files included in the streaming list file (M3U8 list file) is T = M2-M1 + 1. .

In the video conversion table I4, it corresponds to "media_1.ts ~ media_N.ts" → "ad_1.ts ~ ad_N.ts", and "media_ (N + 1) .ts ~ media_T.ts" → "live_ (M1 + N) .ts ~ live_M2.ts ".

For example, if the second TS files for the advertisement video are "ad_1.ts to ad_3.ts" and the first TS files for the LIVE image are "live_101.ts to live_200.ts", the video conversion table I4 May be implemented as shown in Table 3 below.

TABLE 3

request	answer	division
media_1.ts	ad_1.ts	Advertising
…	…	Advertising
media_3.ts	ad_3.ts	Advertising
media_4.ts	live_104.ts	LIVE video
…	…	LIVE video
media_100.ts	live_200.ts	LIVE video

On the other hand, when the LIVE image is to be exposed according to the second advertisement exposure method, the total number of TS files included in the streaming list file (M3U8 list file) is T = M2-M1 + 1 + N.

In the video conversion table I4, "media_1.ts ~ media_ (M2-M1 + 1) .ts" corresponds to "live_M1.ts ~ live_M2.ts", and "media_ (M2-M1 + 1 + 1). ts ~ media_T.ts "→ corresponds to" ad_1.ts-ad_N.ts ".

For example, if the second TS files for the advertisement video are "ad_1.ts ~ ad_3.ts" and the first TS files for the LIVE image are "live_101.ts ~ vod.200.ts", the video conversion table ( I4) may be implemented as shown in Table 4 below.

Table 4

request	answer	division
media_1.ts	live_101.ts	LIVE video
…	…	LIVE video
media_100.ts	live_200.ts	LIVE video
media_101.ts	ad_1.ts	Advertising
…	…	Advertising
media_103.ts	ad_3.ts	Advertising

Meanwhile, referring to a case of streaming a VOD video, there are first TS files "vod_1.ts ~ live_M.ts" which fragment the VOD video, which is video data to be serviced, and second TS files that fragment the advertising video. Suppose you have "ad_1.ts ~ ad_N.ts". Streaming TS files "media_1.ts to media_T.ts (advertising video + VOD video)" are generated by combining the first TS files and the second TS files.

When the VOD image is to be exposed according to the first advertisement exposure method, the total number of TS files included in the streaming list file (M3U8 list file) is T = M + N.

In the video conversion table I4, it corresponds to "media_1.ts ~ media_N.ts" → "ad_1.ts ~ ad_N.ts", and "media_ (N + 1) .ts ~ media_T.ts" → "vod_1.ts ~ vod_M.ts ".

For example, if the second TS files for the advertisement video are "ad_1.ts ~ ad_3.ts", and the first TS files for the VOD picture are "vod_1.ts ~ vod_10.ts", the video conversion table I4 is provided. May be implemented as shown in Table 5 below.

Table 5

request	answer	division
media_1.ts	ad_1.ts	Advertising
…	…	Advertising
media_3.ts	ad_3.ts	Advertising
media_4.ts	vod_1.ts	VOD video
…	…	VOD video
media_13.ts	vod_10.ts	VOD video

In addition, even when the VOD image is to be exposed according to the second advertisement exposure method, the total number of TS files included in the streaming list file (M3U8 list file) is T = M + N.

In the video conversion table I4, it corresponds to "media_1.ts ~ media_N.ts" → "vod_1.ts ~ vod_M.ts", and "media_ (M + 1) .ts ~ media_T.ts" → "ad_1.ts ~ ad_N.ts ".

For example, if the second TS files for the advertisement video are "ad_1.ts ~ ad_3.ts", and the first TS files for the VOD picture are "vod_1.ts ~ vod_10.ts", the video conversion table I4 is provided. d may be implemented as shown in Table 6 below.

Table 6

request	answer	division
media_1.ts	vod_1.ts	VOD video
…	…	VOD video
media_10.ts	vod_10.ts	VOD video
media_11.ts	ad_1.ts	Advertising
…	…	Advertising
media_13.ts	ad_3.ts	Advertising

As described above, a video conversion table may be implemented according to each exposure scheme and streamed video data, and TS files corresponding to a request from the client are provided to the client based on the video conversion table.

Meanwhile, in an embodiment of the present invention, the client may select an exposure method or type of the advertisement image.

In order to expose personalized advertisements for each client, corresponding advertisements may be provided based on member information, region-based, network-based, and search term-based.

Basically necessary information (for example, client membership information) for each client's personalized advertisement should be provided by the client to the streaming service device. A web server or an advertisement server (not shown) selects an advertisement and provides advertisement images for the selected advertisement to the streaming service apparatus, and the streaming server of the streaming service apparatus provides the advertisement image to the client.

As illustrated in FIG. 17, the client 2 may request the streaming server 30 for information on the type of advertisement and the advertisement exposure method to be received using the GET parameter. In this case, the client may transmit the GET parameter for the advertisement type and the advertisement exposure method together with the parameter requesting the M3U8 list file. For example, data may be transmitted to the streaming server 30 using the GET parameter in the form of “http: // streamingserver / live / _definst_ / mp4: live.stream/playlist.m3u8? Adno = 1 & adposition = start”. . Where “adno = 1 & adposition = start” indicates that ad 1 should be exposed before the live video begins.

The streaming server 30 selects an advertisement image corresponding to the advertisement type requested by the client 2 according to the received GET parameter, and also selects one of the first advertisement exposure method and the second advertisement exposure method. The client creates a streaming list file in which the lists of the advertisement images selected by the client correspond to the exposure method selected by the client, and sends them to the client. When the HTTP request for the TS file is received from the client based on the streaming list file, the streaming server 30 provides the TS file corresponding to the request to the client based on the video conversion table. At this time, the advertisement image is provided to the client in the order corresponding to the exposure method selected by the client.

Therefore, the client can play the advertisement image he / she wants according to the exposure method he / she wants.

Next, a method for providing an advertisement image will be described based on a streaming service apparatus according to an embodiment of the present invention operating as described above.

When the streaming service apparatus 1 according to an embodiment of the present invention receives a request according to the HTTP protocol from the client 2 (S100), the streaming service apparatus 1 distinguishes what content the input request is from (S110).

If the request input from the client is a list file request for data provided in the streaming service, the streaming service device 1 generates a streaming list file in which the list file for the video data and the advertisement video is combined to generate the client 2. To provide.

To this end, the streaming service device 1 determines whether a streaming session exists between the client 2 (S120). If there is a streaming session, the streaming service apparatus 1 loads streaming session information related to the corresponding streaming session from the streaming session information manager 34 (S130). In the case of the LIVE service, the video conversion table is updated based on the video data image information (TS files for the live / VOD video), the advertisement video information (the advertisement video TS files), and the current streaming information for the streaming service (S140). ). The streaming list file is generated based on the updated video conversion table (S150), and the generated streaming list file is provided to the client 2 (S160). The streaming list file provided herein includes TS files of an advertisement image having a predetermined order according to the exposure method selected by the client, and the advertisement image may be of a kind selected by the client.

On the other hand, if there is no streaming session in step S120, the streaming service device 1 generates a streaming session, and at this time, selects the type and exposure method of the advertisement video to be provided (S170). And a streaming session including advertisement image information on the selected advertisement image, video data image information on the video data to be provided, and streaming image information to provide the selected advertisement images through one streaming session. Information is generated, and a video conversion table in which streaming TS files are matched with respect to the advertisement video and video data is generated (S180). Thereafter, the streaming service device 1 generates a streaming list file based on the video conversion table (S150), and provides the generated streaming list file to the client 2 (S160).

Meanwhile, in step S110, when the request input from the client is a request for a TS file, the streaming service apparatus 1 first determines whether a streaming session exists (S190). If there is a streaming session, the streaming service apparatus 1 loads the streaming session information corresponding to the streaming session (S200), finds a response file corresponding to the input request based on the video conversion table of the streaming session information, and checks the client ( 2) to provide (S210, S220).

On the other hand, in step S190, if the client requests a video but no streaming session exists, the operation ends.

An embodiment of the present invention is not implemented only through the above-described apparatus and / or method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention, a recording medium on which the program is recorded, and the like. Such implementations may be readily implemented by those skilled in the art from the description of the above-described embodiments.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

Claims

In the method for providing an advertisement video when the streaming service device provides a streaming service to the client,

Fragmenting moving image data to be serviced to generate a plurality of first image fragment files and a first list file;

Fragmenting the advertisement image to generate a plurality of second image fragment files and a second list file; And

Combining the first video fragment file and the second video fragment file to generate a streaming file, and transmitting the generated streaming file to the client through one streaming session

It includes, advertising video providing method.
The method of claim 1

Transmitting, by the streaming service device, a streaming list file combining a first list file of a first video fragment file of video data to be serviced and a second list file of a second video fragment file of an advertising video to the client.

Further comprising, advertising video providing method.
The method of claim 2

The step of transmitting the streaming file to the client through one streaming session,

Receiving a file request from the client; And

Identifying an image fragment file corresponding to the file request from a video conversion table and transmitting the identified image fragment file to the client

It includes, advertising video providing method.
The method of claim 3,

In the video conversion table, a first video fragment file or a second video fragment file is matched to correspond to a streaming file, and a play time for the matched video fragment file and a division indicating whether the corresponding video fragment file is video data or an advertisement video. Code is additionally matched, advertising video providing method.
The method of claim 2

The advertisement image is provided to the client in one of a first advertisement exposure method exposed before playing the video data and a second advertisement exposure method exposed after playing the video data.

And the first image fragment file and the second image fragment file are arranged in the streaming list file according to the first advertisement exposure method or the second advertisement exposure method.
The method of claim 5

Receiving a parameter for selecting a type of an advertisement image and an exposure method of the advertisement image from the client;

More,

And a streaming file is transmitted to the client according to the advertisement image and the exposure scheme of the type corresponding to the received parameter.
In the method for providing an advertisement video when the streaming service device provides a streaming service to the client,

Receiving, by the streaming service apparatus, a request from the client;

If the received request corresponds to a list file, transmitting, by the streaming service device, a streaming list file combining the list file for the video data to be serviced and the list file for the advertisement video to the client; And

If the received request is a file, transmitting, by the streaming service apparatus, a streaming file combining the file for the video data and the file for the advertisement video to the client.

It includes, advertising video providing method.
The method of claim 7,

The step of transmitting the streaming list file to the client

Loading streaming session information in a state where a streaming session with the client is established; And

Generating streaming list files of a plurality of first image fragment files generated by fragmenting the video data according to the streaming session information and a plurality of second image fragment files generated by fragmenting the advertisement image, and transmitting the generated streaming list files to the client; step

It includes, advertising video providing method.
The method of claim 7,

The step of transmitting the streaming file to the client

Loading streaming session information in a state where a streaming session with the client is established; And

A file corresponding to the client's request from the plurality of first image fragment files generated by fragmenting the video data according to the streaming session information and the plurality of second image fragment files generated by fragmenting the advertisement video, to the client; Sending steps

It includes, advertising video providing method.
The method of claim 7,

If the received request corresponds to a listing file and no streaming session is established with the client,

Determining a type of advertisement image to be provided to the client and determining a method of exposing the advertisement image;

Generating streaming session information based on the determined type of advertisement video, the exposure scheme, and video data to be serviced; And

Generating a streaming list file based on the streaming session information and transmitting the generated streaming list file to the client;

Further comprising, advertising video providing method.
The method of claim 8

The streaming session information

Video data image information including a first image fragment file obtained by fragmenting the video data and first metadata about the first image fragment file;

Advertisement image information including a second image fragment file obtained by fragmenting the advertisement image and second metadata about a second image fragment file;

And a video conversion table in which the first video fragment file or the second video fragment file information is matched with the streaming file.

It includes, advertising video providing method.
The method of claim 11,

The step of transmitting a file corresponding to the request of the client to the client,

Identifying a first image fragment file or a second image fragment file corresponding to the streaming file included in the request provided from the client receiving the streaming list file, based on the video conversion table; And

Transmitting the identified first image fragment file or second image fragment file to the client.

It includes, advertising video providing method.
The method of claim 7,

The advertisement image is provided to the client in one of a first advertisement exposure method exposed before playing the video data and a second advertisement exposure method exposed after playing the video data.

And the first image fragment file and the second image fragment file are arranged in the streaming list file according to the first advertisement exposure method or the second advertisement exposure method.
The method of claim 1

The streaming service device provides the streaming service to the client using the HTTP LIVE STREAMING protocol.
A first encoder for encoding video data to be serviced;

A second encoder for encoding an advertisement video; And

A streaming server which processes the encoded video data output from the first encoder and the encoded advertisement video output from the second encoder as a streaming video, and transmits the streaming video to the client through one streaming session.

Including,

The streaming server

And a streaming list file generated based on the list file for the files fragmented with the video data and the list file for the files fragmented with the advertisement video, through a single streaming session.
The method of claim 15

The streaming server,

A first fragmentation processor to fragment the encoded video data to generate a plurality of first image fragment files, and to generate metadata about the generated first image fragment file;

A second fragmentation processor configured to generate a plurality of second image fragment files from the encoded advertisement image and to generate metadata about the generated second image fragment file;

A streaming processor configured to form a streaming session and transmit a streaming file based on the first image fragment files and the second image fragment files to the client through one streaming session; And

Streaming session information management unit for storing and managing the streaming session information related to the streaming session

Including, a streaming service device.
The method of claim 16,

Request receiving unit for receiving a request from the client

More,

The streaming processing unit

A session processing unit generating a streaming session and generating streaming session information related thereto;

A list file transmitter for providing a list file to the client based on first metadata or second metadata when the request from the client requests a list of files to be transmitted; And

When the request from the client is an image file for the advertisement image or video data, the image file transmission unit for transmitting the corresponding streaming file to the client

Including, a streaming service device.
The method of claim 16,

If the client's request includes information on the type or exposure method for the advertisement video, an advertisement processor for selecting an advertisement image to be included in the streaming image and exposing the selected advertisement image according to the request.

The streaming service device further comprising.
The method of claim 18

The advertisement processing unit receives information for requesting an advertisement type or exposure method for an advertisement image based on a GET parameter, a POST parameter or a cookie according to a hyper text transfer protocol (HTTP) from a client.
The method of claim 17

The streaming session information

Video data image information including a first image fragment file obtained by fragmenting the video data and first metadata about the first image fragment file;

Advertisement image information including a second image fragment file obtained by fragmenting the advertisement image and second metadata about a second image fragment file;

And a video conversion table in which the first video fragment file or the second video fragment file information is matched with the streaming file.

Including,

And the image transmission unit transmits a first image fragment file or a second image fragment file corresponding to the streaming file requested by the client to the client based on the video conversion table.