CN103747365A - Method, device and system for dynamic inter-cut of media contents based on HTTP (Hyper Text Transport Protocol) stream - Google Patents

Abstract

The embodiment of the present invention discloses a method, device and system for dynamic insertion of media content based on HTTP stream, relates to the field of video technology, and can realize dynamic insertion of personalized media content. The dynamic media content is transmitted through HTTP streaming, and the method includes: the server receives a request message carrying user information sent by the client, selects target media content from locally stored media content according to the user information, and sends the target The media content is sent to the client so that the client can play it. The embodiment of the present invention is mainly applied in the process of dynamic insertion of media content. When a client watches a program through HTTP streaming, personalized insertion of media content can be realized.

Description

Method, device and system for dynamic insertion of media content based on HTTP stream

technical field

The present invention relates to the field of video technology, in particular to a method, device and system for dynamically inserting media content based on HTTP stream.

Background technique

At present, the dynamic insertion of media content can realize the insertion of different media content in the program stream. For example, when a user clicks on a video, personalized ad insertion can insert a personalized video ad before the video is played or at the end of the video according to the user's personalized information, or stop playing the program during the video and insert a personalized ad content, returning to the original program after the ad ends.

The existing technology provides an HTTP (Hypertext Transfer Protocol, Hypertext Transfer Protocol) Streaming technology to realize advertisement insertion. Using this HTTP Streaming, a multimedia content can be divided into several media fragments, and then transmitted to the client through the HTTP protocol. The URLs (Uniform Resource Locator, Uniform Resource Locator) of all media segments obtained from the above multimedia content division are described by a (media presentation description, media presentation description) MPD file. The structure of the MPD file is as shown in Figure 1, wherein, according to the order of the time axis, an MPD is divided into one or more period Periods, and each Period contains description information Representation of different code rates, and each Representation The segment information Segmentinfo describes URLs of several media segments. When the client utilizes the HTTP Streaming technology to play multimedia content, it needs to request the MPD file earlier, and then request to play the content of the media fragment according to the URL of each media fragment in the MPD file.

When using the existing HTTP Streaming technology to realize the dynamic insertion of media content, taking the dynamic insertion of advertisements as an example, it can be realized in the following two ways:

Method 1: In the encoder, the program content is directly divided into program segments and the advertisement content is directly divided into advertisement segments, and a sequence of segments is generated by using the program segments and the advertisement segments. After receiving the MPD file delivered by the server, the client requests to obtain each fragment in the fragment sequence one by one according to the fragment sequence described in the MPD file. When the fragment requested by the client is a program fragment, the content of the program fragment is played, which is a program; when the fragment requested by the client is an advertisement fragment, the content of the advertisement fragment is played, and this When the advertisement is played, the advertisement insertion is realized.

Method 2: When the server delivers the MPD file to the client, the server inserts the advertisement segment into the program segment sequence described in the MPD file, and then delivers it to the client. The client requests to obtain and play each segment one by one according to the sequence of segments inserted into the advertisement segment described in the MPD file.

Contents of the invention

Embodiments of the present invention provide a method, device and system for dynamic insertion of media content based on HTTP streaming, which can solve the problem that personalized insertion cannot be realized when media content is transmitted through HTTP streaming.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

A method for dynamically inserting media content based on HTTP streaming, where the dynamic media content is transmitted through HTTP streaming, the method comprising:

Receive the request message carrying user information sent by the client;

Screen out target media content from locally stored media content according to the user information;

Send the target media content to the client, so that the client can play it.

A method for dynamic insertion of media content based on HTTP streaming, where dynamic media content is transmitted through HTTP streaming, including:

Send a request message carrying user information to the server;

receiving the media content sent by the server and matching the user information, and playing the media content.

A kind of media content dynamic insertion device based on HTTP stream, dynamic media content is transmitted through HTTP stream, and this device comprises:

The first receiving unit is configured to receive a request message carrying user information sent by the client;

a screening unit, configured to screen target media content from locally stored media content according to the user information;

A first sending unit, configured to send the target media content to the client, so that the client can play it.

Another HTTP stream-based media content dynamic insertion device, the dynamic media content is transmitted through HTTP streams, including:

The first sending unit is configured to send a request message carrying user information to the server;

The first receiving unit is configured to receive the media content sent by the server and matched with the user information, and play the media content.

A dynamic media content insertion system based on HTTP streaming, comprising:

An HTTP streaming-based media content dynamic insertion device as described above is used to receive a request message carrying user information sent by a client; to filter out target media content from locally stored media content according to the user information; to send The target media content is given to the client so that the client can play it;

Another HTTP stream-based media content dynamic insertion device as described above is used to send a request message carrying user information to the server; receive the media content sent by the server that matches the user information, and Play the media content.

In the embodiment of the present invention described by the above technical solution, when the client is watching a program through HTTP streaming, the media content received by the client is obtained by the server based on user information screening, because the user information of different clients has personalized difference, so that different users can receive personalized media content that meets their needs. Compared with the prior art, when clients watch a program through HTTP streaming, all clients who order the same program see the same media content, the embodiment of the present invention enables all clients who order the same program to see Personalized dynamic media content according to respective characteristics, thereby solving the problem in the prior art that personalized insertion of media content cannot be realized when media content is transmitted through HTTP streaming, and realizing personalized insertion of dynamic media content.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of MPD file in the prior art;

Fig. 2 is a flow chart of a method for dynamically inserting media content based on HTTP streaming provided by an embodiment of the present invention;

Fig. 3 is the flow chart of another kind of media content dynamic insertion method based on HTTP flow that the embodiment of the present invention provides;

Fig. 4 is a flow chart of a method for dynamically inserting media content based on HTTP streaming provided by the embodiment of the present invention in a first manner;

Fig. 5 is the flow chart of another kind of method for dynamically inserting media content based on HTTP streaming provided by the embodiment of the present invention implemented in mode 1;

Fig. 6 is a flow chart of a method for dynamically inserting media content based on HTTP streaming provided by the embodiment of the present invention in the first manner;

Fig. 7 is the flow chart of the method for dynamically inserting media content based on HTTP stream realized in mode 2 provided by the embodiment of the present invention;

Fig. 8 is a structural diagram of an HTTP stream-based media content dynamic insertion device provided by an embodiment of the present invention;

FIG. 9 is a structural diagram of the server implemented by way 1 provided by the embodiment of the present invention;

FIG. 10 is a structural diagram of a server implemented in mode 2 provided by an embodiment of the present invention;

FIG. 11 is a structural diagram of another HTTP streaming-based media content dynamic insertion device provided by an embodiment of the present invention;

FIG. 12 is a structural diagram of a client implemented by way 1 provided by an embodiment of the present invention;

FIG. 13 is a structural diagram of a client implemented in a second manner provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The embodiment as shown in Figure 2 provides a kind of method based on the dynamic inserting of media content of HTTP stream, described media content adopts HTTP stream to transmit between server end and client, describe this method from server end below, comprise:

201. Receive a request message carrying user information sent by a client.

The user information may be a user identification, such as a user ID; or the user information may also be a complete description of the user, such as the user's name, gender, hobbies, user location, and so on. In practical applications, the user information may be described in the request message in the form of xml, but not limited to the form of xml.

202. Filter out target media content from locally stored media content according to the user information.

Since the existing server has the function of screening media content, when the server receives the user information, it can use its own screening function to use the user information as a filter condition to filter from locally stored media content. Target media content. The filtered target media content matches the user information.

203. Send the target media content to the client, so that the client can play it.

The embodiment as shown in Fig. 3 provides a kind of method based on the dynamic inserting of media content of HTTP flow, and described media content adopts HTTP flow to transmit between server end and client, describe this method from client side below, include :

301. Send a request message carrying user information to the server.

302. Receive media content that is sent by the server and matches the user information, and play the media content.

In the method for dynamically inserting media content based on HTTP streams provided by the embodiments of the present invention, since the media content received by the client is obtained by the server based on user information, and the user information of different clients has individualized differences, it is not necessary to Users can receive dynamic media content that meets their needs. Compared with the prior art, when clients watch a program through HTTP streaming, all clients who order the same program see the same dynamic media content, the embodiment of the present invention enables all clients who order the same program to watch Personalized dynamic media content conforming to their respective characteristics, thereby solving the problem in the prior art that personalized insertion cannot be realized when the media content is transmitted through HTTP streaming, and realizing the personalized insertion of dynamic media content.

During specific implementation, the dynamic media content provided by the embodiments of the present invention includes: advertisements, program trailers, program branch plots, or any combination thereof.

The method for dynamically inserting media content based on HTTP streaming provided by the embodiments of the present invention can adopt the following two implementations:

Method 1: The server inserts the media content preset information into the MPD file. When the client requests the MPD file and reads the media content preset information, it sends information to the server according to the media content acquisition information and the insertion position of the media content fragment. The terminal sends a media content request message, and the request carries user information, and the server screens out target media content according to the user information. Afterwards, the segment address of the target media content and/or the content segment is returned to the client, and the client requests the content segment or plays the received content segment according to the received segment address of the target media content.

Mode 2: The client sends an MPD request message to the server, and the MPD request message carries user information. The server screens the media content according to the received user information, inserts the fragment address corresponding to the screened target media content into the MPD file, and then sends the MPD file to the client. The client requests the fragment content one by one according to the fragment address sequence in the MPD file, if the program fragment address is requested, the program content sent by the service end is received and played; if the fragment address of the target media content is requested, Then receive and play the fragments of the target media content.

The above two implementation manners are described completely and in detail below respectively.

The embodiment as shown in Figure 4 provides a kind of method based on the dynamic insertion of media content of HTTP flow, and this method specifically adopts above-mentioned mode one to realize the insertion of personalized media content, comprises the following steps:

401. After receiving the MPD request message sent by the client, send the MPD file inserted with the media content preset information to the client.

The media content preset information can be located in the Period, or in the Representation under the Period, or can also be located in the Segmentinfo under the Representation under the Period; the media content preset information includes: media content acquisition information, Insertion position of the first media content fragment;

It should be noted that the media content acquisition information includes a media content insertion location identifier. The media content insertion location identifier is used to acquire information related to the media content insertion location. The insertion position of the first media content segment may be the insertion time or the insertion index relative to the program segment.

In actual application, as shown in Table 1 below, add media content preset information under Segmentinfo in Representation under Period (see AdInfo in Table 1). The media content preset information can also be located in period, or can also be Located in Representation under Period. The media content preset information includes three attributes: media content acquisition information (see Ad-sourceURL in Table 1), first media content fragment insertion index (see Ad-InsertIndex in Table 1), first media content Fragment insertion time (see Ad-starttime in Table 1).

The first media content fragment insertion index (see Ad-InsertIndex in Table 1) is used to insert before the program fragment whose index value of the program fragment is equal to Ad-InsertIndex when the program fragment address is represented by UrlTemplate Media content, so the value of the Ad-InsertIndex is between the start value (see startindex in Table 1) and the end value (see endindex in Table 1) of the program segment.

The insertion time of the first media content segment (see Ad-starttime in Table 1) is used to insert media content at the time indicated by Ad-starttime when the program segment address is represented by UrlTemplate or Url. If the segment address of the program is represented by Url and AdInfo is located between Url and Ad-starttime is not defined, then the insertion time of the first segment of the media content is indicated according to the order of AdInfo in Url;

Table I

402. The client sends a media content first request message carrying user information according to the media content acquisition information in the MPD file.

For example, the description of the Period carrying the media content preset information in the MPD file received by the client is as follows;

It should be noted that, in the SegmentInfo of the above-mentioned Period, the program segment address is described by url, for example, <url sourceurl="www.example.com/program1.3gp"> indicates the first program segment address, <url sourceurl ="www.example.com/program2.3gp"> indicates the address of the second program segment, <url sourceurl="www.example.com/program3.3gp> indicates the address of the third program segment, assuming that each segment The duration of the film is 10s. The media content preset information is described by AdInfo, for example, http://www.example.com/Adselect/33 is used to represent the media content acquisition information, where http://www.example.com/Adselect Represents the media content acquisition address, and 33 represents the media content insertion location identifier. It is assumed that the above media content acquisition address can be mapped to a dynamic processing file of the media content on the server.

The process for the client to detect and process the above-mentioned Period is as follows: When the client detects the AdInfo in the above-mentioned Period, it can know that the above-mentioned Period contains media content preset information. Afterwards, the client sends fragmentation requests to the server in sequence according to the order of the fragmentation addresses in the SegmentInfo in the representation under the above-mentioned Period. Firstly, the client requests the program content fragments from the server according to the order of the program fragment addresses above, and the server returns the content of the program fragments. When the insertion time represented by Ad-starttime arrives, the client sends a first media content request message to the server, and the first media content request message carries user information. The above user information may be a user identifier, or may also be complete user description information, such as the user's name, gender, hobbies, user's location, and so on.

In addition, if the server records the user description information, only the user ID needs to be carried in the first request message of the media content above. At this time, the first request message of the media content sent according to the media content acquisition information can be expressed as follows:

GET /Adselect/33/%userId%

Host: www.example.com

Among them, the media content acquisition information is composed of the media content acquisition address and the media content insertion location identifier, "www.example.com/Adselect" in the above message body indicates the media content acquisition address, "33" indicates the media content insertion location identifier, " userId" indicates the user ID.

403. The server screens out target media content from locally stored media content according to the user information.

Specifically, the server acquires media content insertion location information according to the media content insertion location identifier in the media content acquisition information, and the media content insertion location information includes the duration of the media content insertion location, the time period associated with the media content insertion location programme. For example, the dynamic processing file of the media content on the server acquires the media content insertion location information according to the above media content insertion location identifier "33".

Afterwards, the server screens out target media content from locally stored media content according to the user information and the media content insertion location information. The target media content matches the user information.

404. The server sends a media content first response message to the client, where the media content first response message includes addresses of all segments of the target media content.

For example, the format of the first response message of the media content may be expressed as follows:

Among them, <Url sourceURL="adseg-1.3gp"/>, <Url sourceURL="adseg-2.3gp"/>, <Url sourceURL="adseg-3.3gp"/> represent all fragments of the target media content address. The description structure of the segment address may be consistent with the structure definition of SegmentInfo and its sub-elements in the existing MPD.

405. After receiving the first response message of the above-mentioned media content, the client sends subsequent fragmentation request messages in sequence according to the fragmentation addresses.

It should be noted that if the first response message of the above-mentioned media content contains the initialization segment address, then the initialization segment needs to be requested first, otherwise, the request is sent one by one according to the segment address. The specific request process is the same as the existing program segment request process Same, no more details here.

406. The server sends to the client the fragment content corresponding to the fragment address carried in the subsequent fragment request.

Further, as shown in FIG. 5, the above steps 404-406 can also be replaced by the following steps 404A-408A:

404A. The server sends a first response message of media content to the client, where the first response message of media content includes the identifier of the target media content, the number of fragments, and the content of the first fragment;

For example, the format of the first response message of the media content may be expressed as follows:

Among them...moof...mfhd....tfra...trun...indicates the content of the first segment; segmentNumber indicates the number of segments, and contentIndex indicates the media content index;

405A. After receiving the first response message of the above media content, the client plays the first fragment content of the target media content.

406A. Send a subsequent segment request message carrying the identifier of the target media and a segment index value according to the media content acquisition information.

For example, the structure of the subsequent fragmentation request message may be expressed as follows:

GET/Adselect/33/%Contentindex%/%index%

Host: www.example.com

Among them, the media content acquisition information is composed of the media content acquisition address and the media content insertion location identifier, "www.example.com/Adselect" in the above message body indicates the media content acquisition address, "33" indicates the media content insertion location identifier, " "Contentindex" indicates the identifier of the target media, which comes from the first response message of the 404A media content, and "index" indicates the fragment index value, which will not be greater than the number of fragments.

407A. The server sends the segment content corresponding to the target media identifier and the segment index value to the client.

For example, the following response message format may be used to return the fragment content corresponding to the identification of the above target media and the fragment index value:

Wherein, the "...moof...mfhd....tfra...trun..." indicates the fragment content corresponding to the identity of the above-mentioned target media and the fragment index value

408A. The client plays the received segmented content.

Afterwards, the above steps 406A-408A are repeated until the client obtains all the segments of the target media content.

Further, as shown in FIG. 6, the above steps 404-406 can also be replaced by the following steps 404B-408B:

404B. Send a media content first response message to the client, where the media content first response message includes the content of the first segment and the address of the next segment of the target media content.

For example, the format of the first response message of the media content may be expressed as follows:

Among them, in the example, the encapsulation of the address of the next media content fragment is realized by extending the box, where urld is the extended box, which is placed in the moof, and describes the address of the next fragment through a field "http://www .adserver.com/file/adseg-2.3gp” indicates the address of the next media content segment.

405B. After receiving the first response message of the above media content, the client plays the first fragment content of the target media content.

406B. The client sends a subsequent fragment request message according to the address of the next fragment.

For example, the structure of the subsequent fragmentation request message may be expressed as follows:

GET file/adseg-2.3gp

Host: www.adserver.com

407B. The server sends a next fragment response message, where the next fragment response message carries the content of the next fragment and the address of the next fragment. The format of the next fragment response message is the same as that of the first response message in 405B above.

408B. The client plays the received segmented content. Afterwards, the above steps 406A-408A are repeated until the client obtains all the segments of the target media content.

Further, in the Period in which the media content preset information is carried in the MPD file received by the client in 402 above, the address of the program segment is described by Url. In actual application, the address of the above-mentioned program segment can also be described through UrlTemplate. At this time, when the media content preset information is described through AdInfo, the value of "Ad-InsertIndex" needs to be defined. For example: the description of a Period carrying media content preset information is as follows:

Among them, the program segment address in SegmentInfo is described by UrlTemplate, and the media content acquisition information is described by ad-sourceURL, where Ad-sourceURL is defined as http://www.example.com/Adselect/33, and ad-InsertIndex defines media content The insertion index of the piece in the program slice, as mentioned above ad-InsertIndex=3, the client needs to request the server for the program content slice with index=1 and index=2 first, and then request the media content when ad-InsertIndex=3 .

It should be noted that when the address of the program segment is described using UrlTemplate, the first request message for the media content is sent and the subsequent processing is the same as when the address of the program segment in 402 is described using Url, and will not be repeated here. After the client receives all the fragmented content of the target media, it requests the program fragmented content again starting from 3 according to the program fragment index value.

The method for dynamically inserting media content based on HTTP streaming as described above is realized by way one, and the process of realizing personalized media content insertion when adopting way two is described in detail below. As shown in Figure 7, the method includes:

701. The client sends user information to the server through an MPD request message.

702. The server receives the MPD request message, and filters out target media content according to the user information.

703. The server divides the target media content, inserts the segment address of the target media content and the program segment address into the MPD file, and sends the MPD file inserted with the segment address of the target media content to the client.

704. The client receives the MPD file, and sends requests for target media content segments one by one according to the sequence of target media content segment addresses in the MPD file.

705. When receiving the request for fragmentation of the target media content, the server sends the corresponding fragmentation of the target media content to the client.

It should be noted that the MPD file mentioned in 303 may also have program segment addresses inserted, and at this time, the client will sequentially send Fragmentation request, if the client receives a program fragment, it will play the content of the program fragment; if it receives the target media content fragment, it will play the content of the media content fragment, so that it can be dynamically inserted during the playback of the program stream Personalize media content. Simultaneously because the target media content fragmentation that inserts in the MPD file that the user receives in the above-mentioned embodiment is drawn according to user information screening, thereby, different users will receive different fragmentation, thereby realized the individualized media content insertion .

Correspondingly, the embodiment of the present invention also provides a device for dynamically inserting media content based on HTTP stream, and the device may specifically be a server. As shown in FIG. 8 , the device includes: a first receiving unit 11 , a screening unit 12 and a first sending unit 13 .

Wherein, the first receiving unit 11 is used to receive the request message carrying the user information sent by the client; the screening unit 12 is used to filter out the target media content from the locally stored media content according to the user information; the first sending unit 13 It is used for sending the target media content to the client.

The above-mentioned target media content includes: one or any combination of advertisements, trailers of programs, or subplots of programs.

Further, as shown in FIG. 9 , when the device implements the dynamic insertion of personalized media content in the above method 1, the device further includes: a second receiving unit 14 and a second sending unit 15 .

Before the first receiving unit 11 receives the request message carrying user information sent by the client, the above-mentioned second receiving unit 14 is used to receive the MPD request message sent by the client, and the second sending unit 15 is used to send the insertion An MPD file with media content preset information is sent to the client.

It should be noted that the media content preset information in the MPD file may be located in Period, or in Representation under Period, or in Segmentinfo under Representation under Period.

The media content preset information includes: media content acquisition information, the insertion position of the first media content segment; the insertion position of the first media content segment may be the insertion time or the insertion index relative to the program segment. The media content acquisition information includes a media content insertion location identifier.

The MPD file can refer to the above Table 1.

When the above method 1 is adopted, the first receiving unit 11 is specifically configured to receive the first media content request message carrying user information sent by the client according to the media content acquisition information.

At this time, when the above method 1 is adopted, (not shown in the figure) the screening unit 12 includes: an acquisition module and a screening module;

Wherein, the obtaining module is configured to obtain media content insertion position information according to the media content insertion position identifier in the media content acquisition information, and the media content insertion position information includes the duration of the media content insertion position, and the media content insertion position associated programs;

A screening module, configured to screen target media content from locally stored media content according to the user information and the media content insertion position information.

When the above method 1 is adopted, the first sending unit 13 includes at least one of the following modules: a first sending module, a second sending module and a third sending module.

Wherein, the first sending module is used to send the first response message of the media content to the client, and the first response message of the media content includes all fragment addresses of the target media content; After the subsequent fragmentation request message sent by the fragmentation address, send the fragmentation content corresponding to the fragmentation address to the client;

The second sending module is used to send the first response message of the media content to the client, the first response message of the media content includes the identification of the target media content, the number of fragments and the first fragment; After the client sends a subsequent fragmentation request message carrying the identification of the target media and the fragmentation index value according to the media content acquisition information, it sends a message corresponding to the identification of the target media and the fragmentation index value. Fragment content to the client;

The third sending module is used to send the first response message of the media content to the client, the first response message of the media content includes the addresses of the first fragment and the next fragment of the target media content; After the client sends a subsequent fragment request message according to the address of the next fragment, it sends a subsequent fragment response message, and the subsequent fragment response message carries the next fragment and the next fragment The address of the slice.

Further, as shown in FIG. 10 , when the device implements the dynamic insertion of personalized media content in the second manner above, the device further includes: a processing unit 16 and a third sending unit 17 .

After the first receiving unit 11 receives the MPD request message carrying the user information sent by the client, and the screening unit 12 screens out the target media content, the processing unit 16 is configured to insert the segment address of the target media content into into the MPD file; the third sending unit 17 is used to send the MPD file inserted with the segment address of the target media content to the client;

When the first receiving unit 11 receives the segment request sent by the client according to the segment address of the target media content, the first sending unit 13 is specifically configured to send the media content corresponding to the segment address to the client.

It should be noted that, the MPD file sent by the third sending unit 17 may also be inserted with program segment addresses. At this time, if the server receives the segment request sent by the client according to the address of the program segment, the server sends the program segment to the client.

The embodiment shown in FIG. 11 provides a device for dynamically inserting media content based on HTTP streams. Specifically, the device may be a client, and the device includes: a first sending unit 21 and a first receiving unit 22 .

Wherein, the first sending unit 21 is used to send a request message carrying user information to the server; the first receiving unit 22 is used to receive the media content sent by the server and matched with the user information, and play the media content.

Further, when the device implements personalized dynamic media content reception in the first manner above, as shown in FIG. 12 , the device further includes: a second sending unit 23 and a second receiving unit 24 .

Before the first sending unit 21 sends a request message carrying user information to the server, the second sending unit 23 is used to send an MPD request message to the server, and the second receiving unit 24 is used to receive the The MPD file sent by the server and inserted with media content preset information.

It should be noted that the media content preset information in the MPD file may be located in Period, or in Representation under Period, or in Segmentinfo under Representation under Period. The media content preset information includes: media content acquisition information, the insertion position of the first media content segment; the insertion position of the first media content segment may be the insertion time or the insertion index relative to the program segment. The media content acquisition information includes a media content insertion location identifier.

The MPD file can refer to the above Table 1.

At this time, the first sending unit 21 is specifically configured to, when it is detected that the MPD file includes media content preset information, send a message containing user information to the server according to the media content acquisition information in the media content preset information. The first request message for the media content of the message.

(Not shown in the figure) The first receiving unit 22 includes at least one of the following modules: a first receiving module, a second receiving module and a third receiving module.

The first receiving module is configured to receive the first response message of the media content sent by the server, the first response message of the media content includes addresses of all fragments of the media content matching the user information; After the fragmentation address sends a subsequent fragmentation request message to the server, it receives the fragmentation content sent by the server;

The second receiving module is configured to receive the first response message of the media content sent by the server, the first response message of the media content includes the identification of the media content matching the user information, the number of fragments and the first Fragmentation: After sending a subsequent fragmentation request message carrying the identifier of the media content and a fragmentation index value to the server according to the media content acquisition information, receiving the fragmented content sent by the server;

The third receiving module is configured to receive the first response message of the media content sent by the server, the first response message of the media content includes the first segment and the next segment of the media content matching the user information slice address; after sending a follow-up slice request message to the server according to the address of the next slice, receive a follow-up slice response message sent by the server, the follow-up slice response message carrying the following One segment and the address of the next segment, repeat the segment request and response until all the media content segments are obtained. .

Further, when the above-mentioned device adopts the above-mentioned method 2 to realize personalized dynamic media content reception, the first sending unit 21 is specifically configured to send an MPD request message carrying user information to the server; at this time, as shown in FIG. 13 , the device also includes: a third receiving unit 25, configured to receive the MPD file sent by the server and inserted with the segment address of the media content matching the user information;

The first sending unit 21 is further configured to send a media content segment request according to the segment address of the media content that matches the user information, and the first accepting unit 22 is specifically configured to receive the request sent by the server. media content.

It should be noted that the MPD file received by the third receiving unit 25 may also be inserted with a program segment address. Segmentation requests are sent sequentially. If the client receives the program segment, it will play the content of the program segment; if it receives the target media content segment, it will play the content of the media content segment.

In the HTTP streaming-based media content dynamic insertion device provided by the above-mentioned embodiments, since the media content fragments received by the client are obtained by the server based on user information screening, and the user information of different clients has individualized differences, thus It enables different users to receive the content of media content fragments that meet their respective needs. Compared with the prior art, when clients watch a program through HTTP streaming, all clients who order the same program see the same dynamic media content, the embodiment of the present invention enables all clients who order the same program to watch Personalized dynamic media content that meets their respective characteristics, thus solving the problem that personalized insertion cannot be realized when the media content is transmitted through HTTP streaming, and realizing personalized insertion of dynamic media content.

The embodiment of the present invention also provides a dynamic media content insertion system based on HTTP streams, including: a dynamic media content insertion device based on HTTP streams as shown in any one of Figures 8-10 and a dynamic media content insertion device as shown in any one of Figures 11-13 Another device for dynamically inserting media content based on HTTP streaming is shown.

Wherein, a kind of HTTP streaming-based media content dynamic insertion device shown in any one of Figures 8-10 is specifically a server, which is used to receive a request message carrying user information sent by a client; Screen out the target media content from the stored media content; send the target media content to the client so that the client can play it;

Another HTTP streaming-based media content dynamic insertion device as shown in any one of Figures 11-13 is specifically a client, which is used to send a request message carrying user information to the server; media content matching the user information, and play the media content.

In the above-mentioned HTTP streaming-based media content dynamic insertion system, since the media content received by the client is screened by the server based on the user information, and the user information of different clients has individualized differences, different users can Received media content that meets their respective needs. Compared with the prior art, when clients watch a program through HTTP streaming, all clients who order the same program see the same dynamic media content, the embodiment of the present invention enables all clients who order the same program to watch Personalized dynamic media content that meets their respective characteristics, thus solving the problem that personalized insertion cannot be realized when the media content is transmitted through HTTP streaming, and realizing personalized insertion of dynamic media content.

The embodiment of the present invention is mainly applied in the process of dynamic insertion of media content. When a client watches a program through HTTP streaming, personalized insertion of media content can be realized.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be realized by means of software plus necessary general-purpose hardware, and of course also by hardware, but in many cases the former is a better embodiment . Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, such as a floppy disk of a computer , a hard disk or an optical disk, etc., including several instructions for enabling a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (15)

1. A dynamic media content inter-cut method based on HTTP stream, characterized in that, the dynamic media content is transmitted by HTTP stream, the method includes:

receiving an MPD request message which is sent by a client and carries user information;

screening target media contents from locally stored media contents according to the user information;

inserting the fragment address of the target media content into an MPD file;

sending the MPD file inserted with the segment address of the target media content to the client;

receiving a fragmentation request sent by a client according to the fragmentation address of the target media content;

and sending the media content corresponding to the fragment address to the client so as to be played by the client conveniently.

2. A dynamic media content inter-cut method based on HTTP stream, characterized in that, the dynamic media content is transmitted by HTTP stream, the method includes:

receiving a Media Presentation Description (MPD) request message sent by the client;

sending an MPD file into which media content preset information is inserted to the client, where the media content preset information includes: media content acquisition information and media content fragment insertion positions;

receiving a media content request message carrying user information sent by a client according to the media content acquisition information;

screening target media contents from locally stored media contents according to the user information;

and sending the target media content to the client so that the client can play the target media content according to the media content fragment insertion position.

3. The dynamic HTTP streaming-based media content inter-cut method according to claim 2, wherein the media content preset information is located in a Period, or in description information repetition below the Period, or in segment information Segmentinfo below the repetition below the Period.

4. The dynamic HTTP streaming-based media content insertion method as recited in claim 2, wherein the media content segment insertion position is an insertion time or an insertion index of a relative program segment.

5. The dynamic inter-cut method for media content based on HTTP stream as recited in claim 4, wherein the media content acquisition information includes a media content insertion location identifier.

6. The dynamic HTTP streaming-based media content insertion method as recited in claim 5, wherein the step of filtering out the target media content from the locally stored media content according to the user information comprises:

acquiring media content inserting position information according to a media content inserting position identification in the media content acquiring information, wherein the media content inserting position information comprises the time length of the media content inserting position and a program associated with the media content inserting position;

and screening target media contents from the locally stored media contents according to the user information and the media content inserting position information.

7. The dynamic inter-cut method for media content based on HTTP stream according to claim 4 or 5, characterized in that said sending said target media content to said client comprises:

sending a media content first response message to the client, wherein the media content first response message comprises all fragment addresses of the target media content; after receiving subsequent media content fragmentation request messages sent by the client one by one according to the fragmentation addresses, sending the fragmentation content corresponding to the fragmentation addresses to the client; or,

sending a media content first response message to the client, wherein the media content first response message comprises the identification of the target media content, the fragment number and the first fragment content; after receiving a subsequent fragmentation request message which is sent by the client according to the media content acquisition information and carries the identifier and the fragmentation index value of the target media, sending the fragmentation content corresponding to the identifier and the fragmentation index value of the target media to the client; or,

sending a media content first response message to the client, wherein the media content first response message comprises a first fragment content of the target media content and an address of a next fragment; and after receiving a fragmentation request message sent by the client according to the address of the next fragment, sending a next fragmentation response message, wherein the next fragmentation response message carries the content of the next fragment and the address of the next fragment, and repeating the fragmentation request and the response until all media content fragments are obtained.

8. A media content dynamic inter cut method based on HTTP stream is characterized in that dynamic media content is transmitted by HTTP stream, which includes:

sending an MPD request message carrying user information to a server;

receiving an MPD file which is transmitted by the server and inserted with a segment address of the media content matched with the user information;

sending a media content fragmentation request according to the fragmentation address of the media content matched with the user information;

and receiving the media content which is sent by the server and matched with the user information, and playing the media content.

9. An apparatus for dynamic inter-cut of media content based on HTTP streaming, wherein the dynamic media content is streamed via HTTP, the apparatus comprising:

the system comprises a first receiving unit, a second receiving unit and a sending unit, wherein the first receiving unit is used for receiving an MPD request message which is sent by a client and carries user information;

the screening unit is used for screening target media contents from the locally stored media contents according to the user information;

the inserting unit is used for inserting the fragment address of the target media content into an MPD file;

the first sending unit is used for sending the MPD file inserted with the segment address of the target media content to the client;

the second receiving unit is used for receiving a fragmentation request sent by the client according to the fragmentation address of the target media content;

and the second sending unit is used for sending the media content corresponding to the fragment address to the client so as to be convenient for the client to play.

10. An apparatus for dynamic inter-cut of media content based on HTTP streaming, wherein the dynamic media content is streamed via HTTP, the apparatus comprising:

the first receiving unit is used for receiving a first request message of the media content which is sent by the client according to the media content acquisition information and carries the user information;

the screening unit is used for screening target media contents from the locally stored media contents according to the user information;

the first sending unit is used for sending the target media content to the client so that the client can play the target media content according to the inserting position of the media content fragments;

before the first receiving unit receives a request message carrying user information sent by a client, a second receiving unit is used for receiving an MPD request message sent by the client; a second sending unit, configured to send an MPD file into which media content preset information is inserted to the client, where the media content preset information includes: media content acquisition information, a first media content fragment insertion position.

11. The dynamic HTTP streaming-based media content insertion device as recited in claim 10, wherein the first media content segment insertion position is an insertion time or an insertion index of a relative program segment.

12. The dynamic HTTP streaming-based media content insertion apparatus as recited in claim 11, wherein the media content acquisition information includes a media content insertion location identifier.

13. The dynamic HTTP streaming-based media content insertion apparatus as recited in claim 12, wherein the filtering unit comprises:

the acquisition module is used for acquiring media content insertion position information according to a media content insertion position identifier in the media content acquisition information, wherein the media content insertion position information comprises the duration of the media content insertion position and a program associated with the media content insertion position;

and the screening module is used for screening target media contents from the locally stored media contents according to the user information and the media content inserting position information.

14. The dynamic HTTP streaming media content inter-cut device according to claim 11 or 12, wherein the first sending unit comprises at least one of the following modules:

a first sending module, configured to send a media content first response message to the client, where the media content first response message includes all segment addresses of the target media content; after receiving a subsequent fragmentation request message sent by the client according to the fragmentation address, sending fragmentation content corresponding to the fragmentation address to the client;

a second sending module, configured to send a media content first response message to the client, where the media content first response message includes an identifier of the target media content, a segment number, and a first segment; after receiving a subsequent fragmentation request message which is sent by the client according to the media content acquisition information and carries the identifier and the fragmentation index value of the target media content, sending the fragmentation content corresponding to the identifier and the fragmentation index value of the target media content to the client;

a third sending module, configured to send a media content first response message to the client, where the media content first response message includes addresses of a first segment and a next segment of the target media content; and after receiving a subsequent fragmentation request message sent by the client according to the address of the next fragment, sending a subsequent fragmentation response message, wherein the subsequent fragmentation response message carries the addresses of the next fragment and the next fragment.

15. An apparatus for dynamic inter-cut of media content based on HTTP streaming, wherein the dynamic media content is transmitted by HTTP streaming, comprising:

the system comprises a first sending unit, a second sending unit and a sending unit, wherein the first sending unit is used for sending an MPD request message carrying user information to a server;

a third receiving unit, configured to receive an MPD file, which is sent by the server and into which a segment address of media content matched with the user information is inserted;

a second sending unit, configured to send a media content fragmentation request according to the fragmentation address of the media content matched with the user information;

and the first receiving unit is used for receiving the media content which is sent by the server and matched with the user information and playing the media content.

Images