CN105100961A - Media preview generation method and generation apparatus - Google Patents
Media preview generation method and generation apparatus Download PDFInfo
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- CN105100961A CN105100961A CN201510435708.4A CN201510435708A CN105100961A CN 105100961 A CN105100961 A CN 105100961A CN 201510435708 A CN201510435708 A CN 201510435708A CN 105100961 A CN105100961 A CN 105100961A
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- 239000012634 fragment Substances 0.000 claims abstract description 82
- 230000004044 response Effects 0.000 abstract description 13
- 230000006399 behavior Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 239000012467 final product Substances 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 101100465559 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) PRE7 gene Proteins 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 101150076896 pts1 gene Proteins 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/23412—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs for generating or manipulating the scene composition of objects, e.g. MPEG-4 objects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/466—Learning process for intelligent management, e.g. learning user preferences for recommending movies
- H04N21/4667—Processing of monitored end-user data, e.g. trend analysis based on the log file of viewer selections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
- H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention discloses a media preview generation method and a generation apparatus. The method includes receiving a preview display request including preview time which corresponds to the play time of a streaming media file corresponding to the requested previews and is obtained through the playing progress of a player; obtaining the fragment address corresponding to the preview time according to a fragment list including corresponding relation between the play time and fragment addresses of the streaming media files; sending fragment request including the fragment address corresponding to the preview time to a server according to the fragment address; receiving fragment corresponding to the preview time fed back by the server and selecting key frames, generating previews according to the selected key frames; sending the previews to the player to display the preview at the corresponding preview time. Media previews can be generated without support of a player, the pressure of a server is reduced, and the response time is shortened.
Description
Technical field
The present invention relates to Streaming Media process field, particularly a kind of video thumbnail generation method and generating apparatus.
Background technology
Along with the development of information technology, streaming media service occupies increasing ratio in a network, becomes the focus of people's growing interest.Adaptive stream media (HTTPAdaptiveStreaming, be called for short HAS) feature play of the traditional stream media technology of combine with technique and HTTP progressive download, in the mode of HTTP to user's transmission class media content, greatly can promote the experience of user, reduce the complexity of server simultaneously.
Existing adaptive stream media technology can provide video thumbnails at User Interface main window usually when streaming media playing, so that the other guide of user's browsing video in the playing process of files in stream media.Video thumbnails can with progress bar with the use of, in streaming media playing process, progress bar is moved to certain preview moment by user, the video thumbnails in this preview moment can be shown in play area, as shown in Figure 1, player is at play area 101 playing stream media file, and progress bar 102 moves to the T1 moment, can show the video thumbnails in T1 moment at the video preview window 103.
In existing adaptive stream media technology, because protocol layer does not have corresponding video thumbnails standard, there is no video thumbnails in the packet simultaneously transmitted, therefore yet, player directly cannot obtain thumbnail from server, generates the support that thumbnail needs player.If thumbnail systematic function do not supported by player, then cannot generate thumbnail and display thumbnail.Such as, in IOS system, the player framework of primary AVPlayer closes source, cannot directly send video data and do decoding to player, and therefore, IOS system possibly cannot provide thumbnail preview function.
When player support generates thumbnail, the generation method of existing video thumbnails is that player is to the burst of server request files in stream media), the burst that reception server returns, generates thumbnail according to burst, and in corresponding position display.In prior art, need when preview moment generating video thumbnail to obtain video TS burst from server, easily cause repeated downloads video data, response speed is slow.
Visible, in prior art, the method generating thumbnail needs the support of player, and the scope of application is little.Meanwhile, if player support generates the function of thumbnail, but video thumbnail generation method of the prior art can increase server stress, extends response speed.
Summary of the invention
Provide a kind of video thumbnail generation method and generating apparatus in the embodiment of the present invention, when can solve generating video thumbnail, need the support of player, and the problem that corresponding speed is slow.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses following technical scheme:
On the one hand, provide a kind of video thumbnail generation method, be applied to terminal, described method comprises:
Receive thumbnail display request, described thumbnail display request comprises the preview moment, and the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, and the described preview moment is obtained by the playing progress bar of player;
According to burst list, obtain burst address corresponding to described preview moment, described burst list comprises the corresponding relation playing moment and the burst address of described files in stream media, and described burst is the fragment after described files in stream media cuts;
According to described burst address, send fragment request to described server, described fragment request comprises burst address corresponding to described preview moment;
Receive burst corresponding to the described preview moment of described server feedback;
The selection of key frame is carried out according to the burst that the described preview moment is corresponding;
According to the described key frame selected, generate thumbnail;
Send described thumbnail to described player, show described thumbnail to make described player in the preview moment of correspondence.
In conjunction with first aspect, in the first possibility implementation of first aspect, described according to burst list, before the burst address that the acquisition preview moment is corresponding, described method also comprises:
Send the burst list request of described files in stream media to described server, to obtain described burst list from described server.
May implementation in conjunction with the first of first aspect or first aspect, may in implementation at the second of first aspect, described method also comprises:
Obtain the original address of described files in stream media;
According to the original address of described files in stream media, generate the local address of described files in stream media, make described player obtain described original address to play described files in stream media according to described local address.
In conjunction with the second possibility implementation of first aspect, in the third possibility implementation of first aspect, according to the original address of described files in stream media, generate the local address of files in stream media, comprising:
Obtain the Uniform Resource Identifier URI information of the original address of described files in stream media;
Obtain the port numbers of described server binding;
According to port numbers and the Uniform Resource Identifier URI information of local loopback address, binding, generate local address.
May any one implementation of implementation kind in conjunction with first aspect to the third of first aspect, may in implementation at the 4th kind of first aspect, described method also comprises:
Obtain the historical record in described preview moment;
According to described historical record, obtain the duration interval between adjacent two preview moment;
Obtain the mean value at multiple duration interval as average duration;
Judge whether the mean square deviation at multiple duration interval is less than predetermined threshold value;
If described mean square deviation is less than predetermined threshold value, then obtains from described server and estimate burst corresponding to moment, described in estimate the moment be duration of being separated by with last preview moment is moment of described average duration.
Second aspect, provides a kind of video thumbnail generation method, is applied to server, and described method comprises:
The fragment request that receiving terminal sends, described fragment request comprises burst address corresponding to preview moment, the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, the described preview moment is obtained by the playing progress bar of player, and described burst is the fragment after the cutting of described files in stream media;
Obtain the burst address in described fragment request;
The burst that the preview moment is corresponding according to described burst address acquisition;
Send burst corresponding to described preview moment to described terminal.
In conjunction with second aspect, in the first possibility implementation of second aspect, described method also comprises:
Receive the burst list request that described terminal sends;
Send described burst list to described terminal.
The third aspect, provide a kind of video thumbnails generating apparatus, be applied to terminal, described device comprises:
Thumbnail display request reception unit, for receiving thumbnail display request, described thumbnail display request comprises the preview moment, and the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, and the described preview moment is obtained by the playing progress bar of player;
Burst address acquisition unit, for according to burst list, obtain burst address corresponding to described preview moment, described burst list comprises the corresponding relation playing moment and the burst address of described files in stream media, and described burst is the fragment after described files in stream media cuts;
Fragment request transmitting element, for according to described burst address, sends fragment request to described server, and described fragment request comprises burst address corresponding to described preview moment;
Burst receiving element, the burst that the described preview moment for receiving described server feedback is corresponding;
Selected cell, carries out the selection of key frame for the burst corresponding according to the described preview moment;
Thumbnail generation unit, for the key frame selected described in basis, generates thumbnail;
Thumbnail transmitting element, sends described thumbnail to described player, shows described thumbnail to make described player in the preview moment of correspondence.
In conjunction with the third aspect, in the first possibility implementation of the third aspect, described device also comprises:
Burst list acquiring unit, for sending the burst list request of described files in stream media to described server, to obtain described burst list from described server.
May realize in conjunction with the first of the third aspect and the third aspect, may in implementation at the second of the third aspect, described device also comprises:
Original address acquiring unit, for obtaining the original address of described files in stream media;
Local address generation unit, for the original address according to described files in stream media, generates the local address of described files in stream media, makes described player obtain described original address to play described files in stream media according to described local address.
In conjunction with the second possibility implementation of the third aspect, in the third possibility implementation of the third aspect, local address generation unit is also for obtaining the Uniform Resource Identifier URI information of the original address of described files in stream media;
Local address generation unit is also for obtaining the port numbers of described server binding;
Local address generation unit also for according to the port numbers of local loopback address, binding and Uniform Resource Identifier URI information, generates local address.
In conjunction with the third aspect to any one the possibility implementation in the third possibility implementation of the third aspect, in the 4th kind of possibility implementation of the third aspect, described device also comprises user behavior analysis unit, for obtaining the historical record in described preview moment;
Described user behavior analysis unit also for according to described historical record, obtains the duration interval between adjacent two preview moment;
Described user behavior analysis unit is also for obtaining the mean value at multiple duration interval as average duration;
Described user behavior analysis unit is also for judging whether the mean square deviation at multiple duration interval is less than predetermined threshold value;
If described user behavior analysis unit is also less than predetermined threshold value for described mean square deviation, then obtains from described server and estimate burst corresponding to moment, described in estimate the moment be duration of being separated by with last preview moment is moment of described average duration.
Fourth aspect, additionally provide a kind of video thumbnails generating apparatus, be applied to server, described device comprises:
Fragment request receiving element, for the fragment request that receiving terminal sends, described fragment request comprises burst address corresponding to preview moment, the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, the described preview moment is obtained by the playing progress bar of player, and described burst is the fragment after the cutting of described files in stream media;
Burst acquiring unit, for obtaining the burst address in described fragment request, the burst that the preview moment is corresponding according to described burst address acquisition;
Burst transmitting element, sends burst corresponding to described preview moment to described terminal.
In conjunction with fourth aspect, in the first possibility implementation of fourth aspect, described device also comprises fragment request transmitting element, for receiving the burst list request that described terminal sends, sends described burst list to described terminal.
5th aspect, provide a kind of video thumbnails generating apparatus, be applied to terminal, described device comprises:
First receiver, for receiving thumbnail display request, described thumbnail display request comprises the preview moment, and the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, and the described preview moment is obtained by the playing progress bar of player;
First processor, for according to burst list, obtains burst address corresponding to described preview moment, and described burst list comprises the corresponding relation playing moment and the burst address of described files in stream media, and described burst is the fragment after described files in stream media cuts;
First transmitter, for according to described burst address, sends fragment request to described server, and described fragment request comprises burst address corresponding to described preview moment;
Described first receiver is for burst corresponding to described preview moment of receiving described server feedback;
Described first processor also carries out the selection of key frame for the burst corresponding according to the described preview moment;
The key frame of described first processor also for selecting described in basis, generates thumbnail;
Described first transmitter also for sending described thumbnail to described player, shows described thumbnail to make described player in the preview moment of correspondence.
In conjunction with the 5th aspect, the first in the 5th may in implementation, described first transmitter also for sending the burst list request of described files in stream media to described server, to obtain described burst list from described server.
May implementation in conjunction with the first of the 5th aspect and the 5th aspect, the second in the 5th may in implementation, and described first processor is also for obtaining the original address of described files in stream media;
Described first processor, also for the original address according to described files in stream media, generates the local address of described files in stream media, makes described player obtain described original address to play described files in stream media according to described local address.
In conjunction with the second possibility implementation of the 5th aspect, in the third possibility implementation in the 5th, described first processor is also for obtaining the Uniform Resource Identifier URI information of the original address of described files in stream media;
Described first processor is also for obtaining the port numbers of described server binding;
Described first processor also for according to the port numbers of local loopback address, binding and Uniform Resource Identifier URI information, generates local address.
In conjunction with any one the possibility implementation in the third possibility implementation of the 5th aspect to the 5th aspect, in the 4th kind of possibility implementation in the 5th, described first processor is also for obtaining the historical record in described preview moment;
Described first processor also for according to described historical record, obtains the duration interval between adjacent two preview moment;
Described first processor is also for obtaining the mean value at multiple duration interval as average duration;
Described first processor is also for judging whether the mean square deviation at multiple duration interval is less than predetermined threshold value;
If described first processor is also less than predetermined threshold value for described mean square deviation, then obtains from described server and estimate burst corresponding to moment, described in estimate the moment be duration of being separated by with last preview moment is moment of described average duration.
6th aspect, provide a kind of video thumbnails generating apparatus, be applied to server, described device comprises:
Second receiver, for the fragment request that receiving terminal sends, described fragment request comprises burst address corresponding to preview moment, the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, the described preview moment is obtained by the playing progress bar of player, and described burst is the fragment after the cutting of described files in stream media;
Second processor, for obtaining the burst address in described fragment request, the burst that the preview moment is corresponding according to described burst address acquisition;
Second transmitter, for sending burst corresponding to described preview moment to described terminal.
In conjunction with the 6th aspect, in the first the possibility implementation in the 6th, described second transmitter also for receiving the burst list request that described terminal sends, sends described burst list to described terminal.
A kind of video thumbnail generation method is disclosed in embodiments of the invention, in described method, video thumbnails generating apparatus is according to burst list, the burst address that the acquisition preview moment is corresponding, because burst list comprises the corresponding relation of the burst address of playing moment and described files in stream media, therefore can obtain burst address corresponding to preview moment, thus get burst corresponding to preview moment from server, from burst, select key frame and generate thumbnail corresponding to preview moment.The method of the embodiment of the present invention, the support without the need to player gets final product generating video thumbnail, directly obtains burst simultaneously, can reduce server stress according to burst address, shortens the response time.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1 shows that the schematic diagram at the video preview window display video thumbnail;
Figure 2 shows that the flow chart of a kind of video thumbnail generation method of the embodiment of the present invention;
Figure 3 shows that the flow chart of a kind of video thumbnail generation method of the embodiment of the present invention;
Figure 4 shows that the data flow schematic diagram of a kind of video thumbnail generation method of the embodiment of the present invention;
Figure 5 shows that the schematic diagram of a kind of video thumbnails generating apparatus of the embodiment of the present invention;
Figure 6 shows that the schematic diagram of a kind of video thumbnails generating apparatus of the embodiment of the present invention;
Figure 7 shows that the schematic diagram of a kind of video thumbnails generating apparatus of the embodiment of the present invention.
Embodiment
The following embodiment of the present invention provides a kind of video thumbnail generation method and device, and the support without the need to player gets final product generating video thumbnail, and improves response speed.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, carry out clear, complete description to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
User, when using player plays files in stream media, if need browsing video thumbnail, then needs the video thumbnails generating apparatus related to described in player, server and the embodiment of the present invention.Hereafter by from the video thumbnails generating apparatus be positioned in terminal and server two aspect so that the method that video thumbnails generates to be described.
Figure 2 shows that the flow chart embodiments providing a kind of video thumbnail generation method, as shown in Figure 1, described method is applied to terminal, and the executive agent of described method is thumbnail generating apparatus, described in comprise:
Step 201, receives thumbnail display request, and described thumbnail display request comprises the preview moment.
The described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, and the described preview moment is obtained by the playing progress bar of player.
Thumbnail display request can be that player sends, and also can be that other have the transmission of same or analogous functional unit.
User, when viewing streaming media video, if want the thumbnail in preview some moment, can pass through the progress bar of adjustment player to the preview moment, player, or other functional units can generate thumbnail display request.
Step 202, according to burst list, obtains burst address corresponding to described preview moment.
Described burst list comprises the corresponding relation of the burst address of playing moment and described files in stream media.
Described burst is the fragment after the cutting of described files in stream media.
Usually, for the ease of storage, download or preview etc., files in stream media can be divided into multiple little fragment.Files in stream media is cut into burst and belongs to prior art, is not repeating at this.
Before step 202, described method also comprises:
Send server described in described burst list request, to obtain the burst list of described files in stream media from described server.
Step 203, according to described burst address, sends fragment request to described server, and described fragment request comprises burst address corresponding to described preview moment.
Step 204, receives burst corresponding to the described preview moment of described server feedback.
Step 205, carries out the selection of key frame according to the burst that the described preview moment is corresponding.
I frame, P frame, B frame etc. are had in video flowing.When extracting the key frame I frame of video inside, the video data that in burst, the preview moment is corresponding is got according to related protocol, decoding obtains wherein first I frame, obtain the corresponding reproduction time stamp PTS1 time, then preview moment T1 reproduction time being stabbed PTS1 and user's selection compares, difference Tdiff=T1 – PTS1, if Tdiff>0 continues to find next I frame, until as Tdiff<=0, stop finding the next one, using current I frame as key frame; If only have an I frame in this burst, that directly selects this I frame as key frame.
Select key frame can also adopt additive method of the prior art in the embodiment of the present invention, do not repeat them here.
Step 206, according to the described key frame selected, generates thumbnail.
Step 207, sends described thumbnail to described player, shows described thumbnail to make described player in the preview moment of correspondence.
In the method for the embodiment of the present invention, video thumbnails generating apparatus is according to burst list, the burst address that the acquisition preview moment is corresponding, because burst list comprises the corresponding relation of the burst address of playing moment and described files in stream media, therefore burst address corresponding to preview moment can be obtained, thus get burst corresponding to preview moment from server, from burst, select key frame and generate thumbnail corresponding to preview moment.The method of the embodiment of the present invention, the support without the need to player gets final product generating video thumbnail, directly obtains burst simultaneously, can reduce server stress according to burst address, reduces the response time.
The method of the embodiment of the present invention also comprises:
Obtain the original address of described files in stream media;
According to the original address of described files in stream media, generate the local address of described files in stream media, make described player obtain described original address to play described files in stream media according to described local address.
Optionally, according to the original address of described files in stream media, generate the local address of files in stream media, comprising:
Obtain the Uniform Resource Identifier URI information of the original address of described files in stream media;
Obtain the port numbers of described server binding;
According to port numbers and the Uniform Resource Identifier URI information of local loopback address, binding, generate local address.
How original address is converted to local address with embodiment brief description below.
The original address such as http://www.huawei.com/index.m3u8 of a stream matchmaker, wherein, Uniform Resource Identifier URI information is index.m3u8.
The port numbers of server binding can be 5001, and local loopback address is 127.0.0.1, and the local address of generation is http: // 127.0.0.1:5001/index.m3u8.
After generating local address according to the original address of files in stream media, during this files in stream media of player plays, playing request can be sent to the thumbnail generating apparatus of the embodiment of the present invention, thumbnail generating apparatus sends playing request to server, and final player plays this files in stream media according to the local address of files in stream media.
The various requests of player, comprise thumbnail display request and all will be sent to the thumbnail generating apparatus of the embodiment of the present invention, after carrying out address transition, player without the need to directly to server request files in stream media, and only needs by thumbnail generating apparatus according to local address playing stream media file.In conjunction with the method for viewing thumbnail of the embodiment of the present invention, the function that player self provides can be departed from, also can obtain thumbnail.
The video thumbnail generation method of the embodiment of the present invention also comprises:
Obtain the historical record in described preview moment;
According to described historical record, obtain the duration interval between adjacent two preview moment;
Obtain the mean value at multiple duration interval as average duration;
Judge whether the mean square deviation at multiple duration interval is less than predetermined threshold value;
If described mean square deviation is less than predetermined threshold value, then obtains from described server and estimate burst corresponding to moment, described in estimate the moment be duration of being separated by with last preview moment is moment of described average duration.
In an application scenarios in the embodiment of the present invention, suppose in the historical record in preview moment, user obtains video thumbnails in 10 minutes, 15 minutes, 21 minutes, 25 minutes respectively in video playback, so according to above-mentioned historical record, can learn that the duration interval between adjacent two preview moment is respectively 5 minutes, 6 minutes, 4 minutes was 5 minutes after average.
Suppose that the mean square deviation at above-mentioned duration interval is less than default threshold value, so in the embodiment of the present invention, after video playback 25 clock, obtain burst corresponding to this moment with the interval preview of 5 minutes, namely obtain 30 minutes corresponding bursts.The burst corresponding to moment such as can also to obtain 35 minutes, 40 minutes.
In the embodiment of the present invention, according to the historical record in preview moment, namely according to the behavior of user, in the moment in selection playing progress bar at the uniform velocity, obtain burst from server in advance, user obtains thumbnail stand-by period in the follow-up preview moment can be reduced.
Figure 3 shows that the flow chart of a kind of video thumbnail generation method of the embodiment of the present invention, described method is applied to server, and as shown in Figure 3, described method comprises:
Step 301, the fragment request that receiving terminal sends, described fragment request comprises burst address corresponding to preview moment.
The described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, and the described preview moment is obtained by the playing progress bar of player, and described burst is the fragment after the cutting of described files in stream media;
Step 302, obtains the burst address in described fragment request.
Step 303, the burst that the preview moment is corresponding according to described burst address acquisition;
Step 304, sends burst corresponding to described preview moment to described terminal.
The method of the above embodiment of the present invention also comprises:
Receive the burst list request that described terminal sends;
Send described burst list to described terminal.
In fact, files in stream media on server all stores according to burst usually, the each point of corresponding memory address of sector-meeting, according to burst and burst address, server can generate burst list request, and described burst list comprises the corresponding relation of the burst address of playing moment and described files in stream media.
Terminal, when playing stream media file, can obtain burst list from server in advance.
Receive terminal send comprise the fragment request of burst address after, burst corresponding for this burst address can be sent to terminal by server, to make terminal according to burst generating video thumbnail, can reduce the response time of generating video thumbnail.
Figure 4 shows that the data flow schematic diagram of a kind of video thumbnail generation method of the embodiment of the present invention, only designate the data flow of each step in Fig. 4, the particular content of each step please refer to lower example and illustrates, as shown in Figure 4, described method comprises:
Step 401, video thumbnails generating apparatus sends server described in burst list request.
Step 402, server sends the burst list of stream files in stream media to video thumbnails generating apparatus.
Step 403, user selects the preview moment by the playing progress bar of player, and generates thumbnail display request according to the preview moment, is sent to video thumbnails generating apparatus.
Step 404, video thumbnails generating apparatus receives thumbnail display request, according to burst list, the burst address that the acquisition preview moment is corresponding.
Step 405, video thumbnails generating apparatus, according to described burst address, sends fragment request to server.
Step 406, server sends burst corresponding to preview moment to video thumbnails generating apparatus.
Step 407, video thumbnails generating apparatus carries out the selection of key frame according to the burst that the described preview moment is corresponding, according to the key frame selected, generates thumbnail
Step 408, video thumbnails generating apparatus sends described thumbnail to described player.
Step 409, player shows described thumbnail in the preview moment of correspondence.
In the method for the embodiment of the present invention, video thumbnails generating apparatus is according to burst list, the burst address that the acquisition preview moment is corresponding, because burst list comprises the corresponding relation of the burst address of playing moment and described files in stream media, therefore burst address corresponding to preview moment can be obtained, thus get burst corresponding to preview moment from server, from burst, select key frame and generate thumbnail corresponding to preview moment.The method of the embodiment of the present invention, the support without the need to player gets final product generating video thumbnail, directly obtains burst simultaneously, can reduce server stress according to burst address, reduces the response time.
Figure 5 shows that the schematic diagram of a kind of video thumbnails generating apparatus of the embodiment of the present invention, as shown in Figure 5, described application of installation is in terminal, and described device comprises:
Thumbnail display request reception unit 501, for receiving thumbnail display request, described thumbnail display request comprises the preview moment, and the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, and the described preview moment is obtained by the playing progress bar of player;
Burst address acquisition unit 502, for according to burst list, obtain burst address corresponding to described preview moment, described burst list comprises the corresponding relation playing moment and the burst address of described files in stream media, and described burst is the fragment after described files in stream media cuts;
Fragment request transmitting element 503, for according to described burst address, sends fragment request to described server, and described fragment request comprises burst address corresponding to described preview moment;
Burst receiving element 504, the burst that the described preview moment for receiving described server feedback is corresponding;
Selected cell 505, carries out the selection of key frame for the burst corresponding according to the described preview moment;
Thumbnail generation unit 506, for the key frame selected described in basis, generates thumbnail;
Thumbnail transmitting element 507, sends described thumbnail to described player, shows described thumbnail to make described player in the preview moment of correspondence.
In embodiments of the invention, described device also comprises:
Burst list acquiring unit, for sending the burst list request of described files in stream media to described server, to obtain described burst list from described server.
In embodiments of the invention, described device also comprises:
Original address acquiring unit, for obtaining the original address of described files in stream media;
Local address generation unit, for the original address according to described files in stream media, generates the local address of described files in stream media, makes described player obtain described original address to play described files in stream media according to described local address.
In embodiments of the invention, local address generation unit is also for obtaining the Uniform Resource Identifier URI information of the original address of described files in stream media;
Local address generation unit is also for obtaining the port numbers of described server binding;
Local address generation unit also for according to the port numbers of local loopback address, binding and Uniform Resource Identifier URI information, generates local address.
In embodiments of the invention, described device also comprises user behavior analysis unit, for obtaining the historical record in described preview moment;
Described user behavior analysis unit also for according to described historical record, obtains the duration interval between adjacent two preview moment;
Described user behavior analysis unit is also for obtaining the mean value at multiple duration interval as average duration;
Described user behavior analysis unit is also for judging whether the mean square deviation at multiple duration interval is less than predetermined threshold value;
If described user behavior analysis unit is also less than predetermined threshold value for described mean square deviation, then obtains from described server and estimate burst corresponding to moment, described in estimate the moment be duration of being separated by with last preview moment is moment of described average duration.
The device of the embodiment of the present invention can generating video thumbnail without the need to the support of player, can reduce server stress simultaneously, shorten the response time.
Figure 6 shows that the schematic diagram of a kind of video thumbnails generating apparatus of the embodiment of the present invention, be applied to server, as shown in Figure 6, described device comprises:
Fragment request receiving element 601, for the fragment request that receiving terminal sends, described fragment request comprises burst address corresponding to preview moment, the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, the described preview moment is obtained by the playing progress bar of player, and described burst is the fragment after the cutting of described files in stream media;
Burst acquiring unit 602, for obtaining the burst address in described fragment request, the burst that the preview moment is corresponding according to described burst address acquisition;
Burst transmitting element 603, sends burst corresponding to described preview moment to described terminal.
In embodiments of the invention, described device also comprises fragment request transmitting element, for receiving the burst list request that described terminal sends, sends described burst list to described terminal.
The device of the embodiment of the present invention can generating video thumbnail without the need to the support of player, can reduce server stress simultaneously, shorten the response time.
Figure 7 shows that the schematic diagram of a kind of video thumbnails generating apparatus of the embodiment of the present invention, be applied to terminal, as shown in Figure 7, described device comprises:
First receiver 701, for receiving thumbnail display request, described thumbnail display request comprises the preview moment, and the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, and the described preview moment is obtained by the playing progress bar of player;
First processor 702, for according to burst list, obtain burst address corresponding to described preview moment, described burst list comprises the corresponding relation playing moment and the burst address of described files in stream media, and described burst is the fragment after described files in stream media cuts;
First transmitter 703, for according to described burst address, sends fragment request to described server, and described fragment request comprises burst address corresponding to described preview moment;
Described first receiver 701 is for burst corresponding to described preview moment of receiving described server feedback;
Described first processor 702 also carries out the selection of key frame for the burst corresponding according to the described preview moment;
The key frame of described first processor 702 also for selecting described in basis, generates thumbnail;
Described first transmitter 703 also for sending described thumbnail to described player, shows described thumbnail to make described player in the preview moment of correspondence.
In the embodiment of the present invention, described first transmitter 703 also for send described files in stream media burst list request to described server, to obtain described burst list from described server.
In the embodiment of the present invention, described first processor 702 is also for obtaining the original address of described files in stream media;
Described first processor 702, also for the original address according to described files in stream media, generates the local address of described files in stream media, makes described player obtain described original address to play described files in stream media according to described local address.
Described first processor 702 is also for obtaining the Uniform Resource Identifier URI information of the original address of described files in stream media;
Described first processor 702 is also for obtaining the port numbers of described server binding;
Described first processor 702 also for according to the port numbers of local loopback address, binding and Uniform Resource Identifier URI information, generates local address.
In the embodiment of the present invention, described first processor 702 is also for obtaining the historical record in described preview moment;
Described first processor 702 also for according to described historical record, obtains the duration interval between adjacent two preview moment;
Described first processor 702 is also for obtaining the mean value at multiple duration interval as average duration;
Described first processor 702 is also for judging whether the mean square deviation at multiple duration interval is less than predetermined threshold value;
If described first processor 702 is also less than predetermined threshold value for described mean square deviation, then obtains from described server and estimate burst corresponding to moment, described in estimate the moment be duration of being separated by with last preview moment is moment of described average duration.
The device of the embodiment of the present invention can generating video thumbnail without the need to the support of player, can reduce server stress simultaneously, shorten the response time.
Also disclose a kind of video thumbnails generating apparatus in the embodiment of the present invention, be applied to server, described device comprises:
Second receiver, for the fragment request that receiving terminal sends, described fragment request comprises burst address corresponding to preview moment, the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, the described preview moment is obtained by the playing progress bar of player, and described burst is the fragment after the cutting of described files in stream media;
Second processor, for obtaining the burst address in described fragment request, the burst that the preview moment is corresponding according to described burst address acquisition;
Second transmitter, for sending burst corresponding to described preview moment to described terminal.
In the embodiment of the present invention, described second transmitter also for receiving the burst list request that described terminal sends, sends described burst list to described terminal.
The device of the embodiment of the present invention can generating video thumbnail without the need to the support of player, can reduce server stress simultaneously, shorten the response time.
A kind of video thumbnail generation method and device is disclosed in embodiments of the invention, in described method, video thumbnails generating apparatus is according to burst list, the burst address that the acquisition preview moment is corresponding, because burst list comprises the corresponding relation of the burst address of playing moment and described files in stream media, therefore can obtain burst address corresponding to preview moment, thus get burst corresponding to preview moment from server, from burst, select key frame and generate thumbnail corresponding to preview moment.The method of the embodiment of the present invention, the support without the need to player gets final product generating video thumbnail, directly obtains burst simultaneously, can reduce server stress according to burst address, shortens the response time.
Those skilled in the art can be well understood to the mode that technology in the embodiment of the present invention can add required common hardware by software and realize, common hardware comprises universal integrated circuit, universal cpu, general-purpose storage, universal elements etc., can certainly comprise application-specific integrated circuit (ASIC), dedicated cpu, private memory, special components and parts etc. by specialized hardware to realize, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme in the embodiment of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can be stored in storage medium, as read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for system embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (21)
1. a video thumbnail generation method, is characterized in that, is applied to terminal, and described method comprises:
Receive thumbnail display request, described thumbnail display request comprises the preview moment, and the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, and the described preview moment is obtained by the playing progress bar of player;
According to burst list, obtain burst address corresponding to described preview moment, described burst list comprises the corresponding relation playing moment and the burst address of described files in stream media, and described burst is the fragment after described files in stream media cuts;
According to described burst address, send fragment request to described server, described fragment request comprises burst address corresponding to described preview moment;
Receive burst corresponding to the described preview moment of described server feedback;
The selection of key frame is carried out according to the burst that the described preview moment is corresponding;
According to the described key frame selected, generate thumbnail;
Send described thumbnail to described player, show described thumbnail to make described player in the preview moment of correspondence.
2. the method for claim 1, is characterized in that, described according to burst list, and before the burst address that the acquisition preview moment is corresponding, described method also comprises:
Send the burst list request of described files in stream media to described server, to obtain described burst list from described server.
3. method as claimed in claim 1 or 2, it is characterized in that, described method also comprises:
Obtain the original address of described files in stream media;
According to the original address of described files in stream media, generate the local address of described files in stream media, make described player obtain described original address to play described files in stream media according to described local address.
4. method as claimed in claim 3, is characterized in that, according to the original address of described files in stream media, generates the local address of files in stream media, comprising:
Obtain the Uniform Resource Identifier URI information of the original address of described files in stream media;
Obtain the port numbers of described server binding;
According to port numbers and the Uniform Resource Identifier URI information of local loopback address, binding, generate local address.
5. the method as described in any one of Claims 1-4, is characterized in that, described method also comprises:
Obtain the historical record in described preview moment;
According to described historical record, obtain the duration interval between adjacent two preview moment;
Obtain the mean value at multiple duration interval as average duration;
Judge whether the mean square deviation at multiple duration interval is less than predetermined threshold value;
If described mean square deviation is less than predetermined threshold value, then obtains from described server and estimate burst corresponding to moment, described in estimate the moment be duration of being separated by with last preview moment is moment of described average duration.
6. a video thumbnail generation method, is characterized in that, is applied to server, and described method comprises:
The fragment request that receiving terminal sends, described fragment request comprises burst address corresponding to preview moment, the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, the described preview moment is obtained by the playing progress bar of player, and described burst is the fragment after the cutting of described files in stream media;
Obtain the burst address in described fragment request;
The burst that the preview moment is corresponding according to described burst address acquisition;
Send burst corresponding to described preview moment to described terminal.
7. method as claimed in claim 6, it is characterized in that, described method also comprises:
Receive the burst list request that described terminal sends;
Send described burst list to described terminal.
8. a video thumbnails generating apparatus, is characterized in that, is applied to terminal, and described device comprises:
Thumbnail display request reception unit, for receiving thumbnail display request, described thumbnail display request comprises the preview moment, and the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, and the described preview moment is obtained by the playing progress bar of player;
Burst address acquisition unit, for according to burst list, obtain burst address corresponding to described preview moment, described burst list comprises the corresponding relation playing moment and the burst address of described files in stream media, and described burst is the fragment after described files in stream media cuts;
Fragment request transmitting element, for according to described burst address, sends fragment request to described server, and described fragment request comprises burst address corresponding to described preview moment;
Burst receiving element, the burst that the described preview moment for receiving described server feedback is corresponding;
Selected cell, carries out the selection of key frame for the burst corresponding according to the described preview moment;
Thumbnail generation unit, for the key frame selected described in basis, generates thumbnail;
Thumbnail transmitting element, sends described thumbnail to described player, shows described thumbnail to make described player in the preview moment of correspondence.
9. device as claimed in claim 8, it is characterized in that, described device also comprises:
Burst list acquiring unit, for sending the burst list request of described files in stream media to described server, to obtain described burst list from described server.
10. device as claimed in claim 8 or 9, it is characterized in that, described device also comprises:
Original address acquiring unit, for obtaining the original address of described files in stream media;
Local address generation unit, for the original address according to described files in stream media, generates the local address of described files in stream media, makes described player obtain described original address to play described files in stream media according to described local address.
11. devices as claimed in claim 10, is characterized in that, local address generation unit is also for obtaining the Uniform Resource Identifier URI information of the original address of described files in stream media;
Local address generation unit is also for obtaining the port numbers of described server binding;
Local address generation unit also for according to the port numbers of local loopback address, binding and Uniform Resource Identifier URI information, generates local address.
12. devices as described in any one of claim 8 to 11, it is characterized in that, described device also comprises user behavior analysis unit, for obtaining the historical record in described preview moment;
Described user behavior analysis unit also for according to described historical record, obtains the duration interval between adjacent two preview moment;
Described user behavior analysis unit is also for obtaining the mean value at multiple duration interval as average duration;
Described user behavior analysis unit is also for judging whether the mean square deviation at multiple duration interval is less than predetermined threshold value;
If described user behavior analysis unit is also less than predetermined threshold value for described mean square deviation, then obtains from described server and estimate burst corresponding to moment, described in estimate the moment be duration of being separated by with last preview moment is moment of described average duration.
13. 1 kinds of video thumbnails generating apparatus, is characterized in that, be applied to server, and described device comprises:
Fragment request receiving element, for the fragment request that receiving terminal sends, described fragment request comprises burst address corresponding to preview moment, the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, the described preview moment is obtained by the playing progress bar of player, and described burst is the fragment after the cutting of described files in stream media;
Burst acquiring unit, for obtaining the burst address in described fragment request, the burst that the preview moment is corresponding according to described burst address acquisition;
Burst transmitting element, sends burst corresponding to described preview moment to described terminal.
14. devices as claimed in claim 13, it is characterized in that, described device also comprises fragment request transmitting element, for receiving the burst list request that described terminal sends, sends described burst list to described terminal.
15. 1 kinds of video thumbnails generating apparatus, is characterized in that, be applied to terminal, and described device comprises:
First receiver, for receiving thumbnail display request, described thumbnail display request comprises the preview moment, and the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, and the described preview moment is obtained by the playing progress bar of player;
First processor, for according to burst list, obtains burst address corresponding to described preview moment, and described burst list comprises the corresponding relation playing moment and the burst address of described files in stream media, and described burst is the fragment after described files in stream media cuts;
First transmitter, for according to described burst address, sends fragment request to described server, and described fragment request comprises burst address corresponding to described preview moment;
Described first receiver is for burst corresponding to described preview moment of receiving described server feedback;
Described first processor also carries out the selection of key frame for the burst corresponding according to the described preview moment;
The key frame of described first processor also for selecting described in basis, generates thumbnail;
Described first transmitter also for sending described thumbnail to described player, shows described thumbnail to make described player in the preview moment of correspondence.
16. devices as claimed in claim 15, is characterized in that, described first transmitter also for send described files in stream media burst list request to described server, to obtain described burst list from described server.
17. devices as described in claim 15 or 16, it is characterized in that, described first processor is also for obtaining the original address of described files in stream media;
Described first processor, also for the original address according to described files in stream media, generates the local address of described files in stream media, makes described player obtain described original address to play described files in stream media according to described local address.
18. devices as claimed in claim 17, is characterized in that, described first processor is also for obtaining the Uniform Resource Identifier URI information of the original address of described files in stream media;
Described first processor is also for obtaining the port numbers of described server binding;
Described first processor also for according to the port numbers of local loopback address, binding and Uniform Resource Identifier URI information, generates local address.
19. devices as described in any one of claim 15 to 18, it is characterized in that, described processor is also for obtaining the historical record in described preview moment;
Described first processor also for according to described historical record, obtains the duration interval between adjacent two preview moment;
Described first processor is also for obtaining the mean value at multiple duration interval as average duration;
Described first processor is also for judging whether the mean square deviation at multiple duration interval is less than predetermined threshold value;
If described first processor is also less than predetermined threshold value for described mean square deviation, then obtains from described server and estimate burst corresponding to moment, described in estimate the moment be duration of being separated by with last preview moment is moment of described average duration.
20. 1 kinds of video thumbnails generating apparatus, is characterized in that, be applied to server, and described device comprises:
Second receiver, for the fragment request that receiving terminal sends, described fragment request comprises burst address corresponding to preview moment, the described preview moment is the broadcasting moment of files in stream media corresponding to asked thumbnail, the described preview moment is obtained by the playing progress bar of player, and described burst is the fragment after the cutting of described files in stream media;
Second processor, for obtaining the burst address in described fragment request, the burst that the preview moment is corresponding according to described burst address acquisition;
Second transmitter, for sending burst corresponding to described preview moment to described terminal.
21. devices as claimed in claim 20, is characterized in that, described second transmitter also for receiving the burst list request that described terminal sends, sends described burst list to described terminal.
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