CN107465954A - The generation method and Related product of dynamic thumbnail - Google Patents
The generation method and Related product of dynamic thumbnail Download PDFInfo
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- CN107465954A CN107465954A CN201710864457.0A CN201710864457A CN107465954A CN 107465954 A CN107465954 A CN 107465954A CN 201710864457 A CN201710864457 A CN 201710864457A CN 107465954 A CN107465954 A CN 107465954A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000000284 extract Substances 0.000 claims abstract description 18
- 239000012141 concentrate Substances 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 238000000605 extraction Methods 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 3
- AWSBQWZZLBPUQH-UHFFFAOYSA-N mdat Chemical compound C1=C2CC(N)CCC2=CC2=C1OCO2 AWSBQWZZLBPUQH-UHFFFAOYSA-N 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 101000695861 Arabidopsis thaliana Brefeldin A-inhibited guanine nucleotide-exchange protein 5 Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
-
- 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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
-
- H—ELECTRICITY
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- 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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
-
- 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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
-
- 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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
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- 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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47205—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for manipulating displayed content, e.g. interacting with MPEG-4 objects, editing locally
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47217—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
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- H—ELECTRICITY
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- 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
- H04N21/8455—Structuring of content, e.g. decomposing content into time segments involving pointers to the content, e.g. pointers to the I-frames of the video stream
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- 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
- H04N21/854—Content authoring
- H04N21/85406—Content authoring involving a specific file format, e.g. MP4 format
Abstract
The present embodiments relate to electronic technology field, the generation method and Related product of a kind of dynamic thumbnail are disclosed, wherein, method includes：Extract the multiple images frame of the first video file；The multiple images frame being drawn into is added into thumbnail image to concentrate；The picture frame concentrated according to the thumbnail image generates dynamic thumbnail, the embodiment of the present invention additionally provides a kind of terminal, the rapid preview of video file can be realized using the embodiment of the present invention so that user understands the main information of video file in a short time, improves Consumer's Experience.
Description
Technical field
The present invention relates to the generation method and Related product in video information field, more particularly to a kind of dynamic thumbnail.
Background technology
Video resource is presented to user by video service provider by way of the page, and user can be in the corresponding page pair
The video accordingly watched carries out program request.At present, the static picture of preview interface generally use, these pictures are generally the of video
The sectional drawing of one frame or video album.Only the main contents for allowing user to understand video, and user are only unable to reach by a pictures
Normally watch a certain video, if it is desired to the development of action of the video is understood, it is necessary to be checked in a manner of F.F. or in the way of redirecting,
And F.F. or redirect needs just to may be viewed by after waiting video buffer.
Prior art, for a user, if current network conditions are bad, F.F. can be caused or redirected to need pending buffer
Overlong time, if after user has understood the content of the video, it is found not to be want viewing content, then can cause waste user
Time, therefore how to allow user to understand the content of the video before video is watched, turn into technical problem urgently to be resolved hurrily.
The content of the invention
The embodiment of the present invention provides a kind of generation method and Related product of dynamic thumbnail, for realizing video file
Rapid preview so that user understands the main information of video file in a short time, improves Consumer's Experience.
First aspect present invention provides a kind of generation method of dynamic thumbnail, including：
Extract the multiple images frame of the first video file；
The multiple images frame being drawn into is added into thumbnail image to concentrate；
The picture frame concentrated according to the thumbnail image generates dynamic thumbnail.
In the first possible implementation, before the multiple images frame of the first video file is extracted, described in parsing
First video file to obtain the essential information of first video file, wherein, it is described extract the first video file it is multiple
Picture frame, including：Judge in the ending mark for including file according to the essential information of first video file got
In the case that first video file can generate dynamic thumbnail, the multiple images frame of first video file is extracted.
In second of possible implementation, judge whether the duration of first video file exceedes predetermined threshold value,
If judging, the duration of first video file exceedes the predetermined threshold value, extracts multiple passes in first video file
Key picture frame, wherein, the multiple picture frame includes multiple key images frames.
In the third possible way of example, first video file is parsed to obtain first video file
Essential information, chosen according to the essential information of first video file got for decoding first video file
Decoder, first video file is decoded using the decoder of selection to obtain first video file
Decoded picture frame, the decoded picture frame of first video file is entered between-line spacing extract it is described to obtain
Multiple images frame.
With reference to second of possible implementation of first aspect, in the 4th kind of possible implementation, will be drawn into
Multiple key images frames carry out transcoding according to default coded system to obtain multiple key images frames after transcoding, and by institute
State multiple key images frames after transcoding and add thumbnail image concentration.
With reference to the 4th kind of possible implementation of first aspect, in the 5th kind of possible implementation, by the contracting
Multiple key images frames in sketch map image set are compressed into a dynamic GIF picture.
With reference to the third possible implementation of first aspect, in the 6th kind of possible implementation, will extract
To the multiple picture frame be compressed according to default ratio with the multiple images frame after being compressed, and by the compression
Multiple images frame afterwards adds thumbnail image and concentrated.
With reference to the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation, by the contracting
The second video file of dynamic play is capable of in picture frame write-in in sketch map image set, and second video file is the dynamic
Thumbnail.
Second aspect of the present invention provides a kind of terminal, including：
Extracting unit：For extracting the multiple images frame of the first video file；
Add unit：Concentrated for the multiple images frame being drawn into be added into thumbnail image；
Generation unit：Picture frame for being concentrated according to the thumbnail image generates dynamic thumbnail.
In the first possible implementation, resolution unit is described to obtain for parsing first video file
The essential information of first video file, wherein, the extracting unit is specifically used for：According to first video text got
In the case that ending mark of the essential information of part including file judges that first video file can generate dynamic thumbnail,
Extract the multiple images frame of first video file.
In second of possible implementation, the extracting unit includes：Judging unit, for judging that described first regards
Whether the duration of frequency file exceedes predetermined threshold value；
First extracting unit, the duration for judging first video file in the judging unit exceed default threshold
Value, then extract the key images frame in first video file, wherein, the multiple picture frame includes multiple key images
Frame.
In the third possible implementation, the resolution unit, it is additionally operable to parse first video file to obtain
Take the essential information of first video file；
Wherein, the extracting unit includes：Unit is chosen, for according to the basic of first video file got
Information chooses the decoder for decoding first video file；
Decoding unit, for using choosing decoder that unit selection goes out to being decoded to first video file,
To obtain the decoded picture frame of first video file；
Second extracting unit, for being taken out to entering between-line spacing to the decoded picture frame of first video file
Take, to obtain the multiple picture frame.
With reference to second of possible implementation of second aspect, in the 4th kind of possible implementation, the addition
Unit includes：Transcoding units, for the multiple key images frames being drawn into be carried out into transcoding according to default coded system, with
Multiple key images frames after to transcoding；
First adds unit, and the multiple key images frames obtained after transcoding for the transcoding units transcoding to be obtained add
Enter thumbnail image concentration.
With reference to the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation, the generation
Unit is specifically used for, and multiple key images frames that the thumbnail image is concentrated are compressed into a dynamic GIF picture.
With reference to the third possible implementation of second aspect, in the 6th kind of possible implementation, the addition
Unit includes：Compression unit, it is compressed for obtained the multiple picture frame will to be extracted according to default ratio, to obtain
Multiple images frame after compression；
Second adds unit, and the multiple images frame for compressing to obtain the compression unit adds thumbnail image collection
In.
With reference to the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation, the generation
Unit is specifically used for：
The picture frame write-in that the thumbnail image is concentrated is capable of to the second video file of dynamic play, described second regards
Frequency file is the dynamic thumbnail.
Implement the embodiment of the present invention, have the advantages that：
In the embodiment of the present invention, by extracting the multiple images frame of video file, the multiple images frame being drawn into is added
Thumbnail image is concentrated, and the picture frame concentrated according to above-mentioned thumbnail image generates dynamic thumbnail, it is achieved thereby that video
The rapid preview of file so that user understands the main information of video file in a short time, improves Consumer's Experience.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of first embodiment flow chart of the generation method of dynamic thumbnail provided in an embodiment of the present invention；
Fig. 2 is a kind of second embodiment flow chart of the generation method of dynamic thumbnail provided in an embodiment of the present invention；
Fig. 3 is a kind of 3rd embodiment flow chart of the generation method of dynamic thumbnail provided in an embodiment of the present invention；
Fig. 4 is the first embodiment structural representation of terminal provided in an embodiment of the present invention；
Fig. 5 is terminal second embodiment structural representation provided in an embodiment of the present invention；
Fig. 6 is the 3rd embodiment structural representation of terminal provided in an embodiment of the present invention；
Fig. 7 is the fourth embodiment structural representation of terminal provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The terminal referred in the embodiment of the present invention can include PC, smart mobile phone (such as Android phone, iOS hands
Machine etc.), tablet personal computer, MP4, palm PC, mobile internet device (Mobile Internet Devices, MID) or wearing
Formula smart machine etc..
Fig. 1 is referred to, is a kind of first embodiment stream of the generation method of dynamic thumbnail provided in an embodiment of the present invention
Cheng Tu；This method may include following steps：
S101, the multiple images frame for extracting the first video file.
In the embodiment of the present invention, video file is by lattice such as AVI, wma, MP4, flash of the compression generation of multiple images frame
The video file of formula, because existing video file is larger, before terminal generation dynamic thumbnail, it is not necessary to extract video file
All picture frames, therefore generate dynamic thumbnail method first step first extract the first video file be used for generate
The multiple images frame of dynamic thumbnail, wherein, " multiple " represent two or more, and above-mentioned dynamic thumbnail is represented through overvoltage
Contracting mode handle after can dynamic play GIF pictures or video file, facilitate user's preview, above-mentioned first video file regards for original
Frequency file.
S102, the multiple images frame that is drawn into is added into thumbnail image concentrated.
In the embodiment of the present invention, the multiple images frame for being used to generate dynamic thumbnail being drawn into is added thumbnail by terminal
Stored in image set, above-mentioned thumbnail image collection can be stored in the local storage space of terminal, high in the clouds, or the terminal
Memory space of external carry etc..
S103, the picture frame concentrated according to the thumbnail image generate dynamic thumbnail.
In the embodiment of the present invention, the multiple images frame generation dynamic for the storage that terminal is concentrated according to above-mentioned thumbnail image contracts
Sketch map, wherein, thumbnail represents the small figure after the compressed mode of picture is handled in picture frame or terminal on webpage, in video,
Because thumbnail is compact, loading velocity is fast, therefore is frequently used for fast browsing, and above-mentioned dynamic thumbnail includes being capable of dynamic play
Video file or GIF pictures.
In the embodiment of the present invention, by extracting the multiple images frame of video file, the multiple images frame being drawn into is added
Thumbnail image is concentrated, and the picture frame concentrated according to above-mentioned thumbnail image generates dynamic thumbnail, it is achieved thereby that video
The rapid preview of file so that user understands the main information of video file in a short time, improves Consumer's Experience.
Fig. 2 is referred to, is a kind of second embodiment stream of the generation method of dynamic thumbnail provided in an embodiment of the present invention
Cheng Tu；This method may include following steps：
S201, first video file is parsed to obtain the essential information of first video file.
In the embodiment of the present invention, terminal parses above-mentioned first video file to obtain the basic letter of above-mentioned first video file
Breath, wherein, above-mentioned essential information includes but is not limited to：The duration of video file, audio stream, video flowing, mime Type types,
Ending mark of bit rate type, the coded system of video flowing and video file etc..Because the dynamic thumbnail of generation is
As long as video does not have the compression video of audio, therefore the essential information for parsing video file need not be to some features of audio stream
Parsed.For example, by taking MP4 files as an example, terminal needs to parse the different types of BOX of MP4 files, wherein, including image
The long width values of frame, the coded format of video file, the duration etc. of video file, then pass through the long width values and code check of picture frame
The size of each frame is calculated, finally only includes the content (data segment not decoded) of mdat sections.
The essential information for first video file that S202, basis are got judges that first video file whether can
Generate thumbnail.
In the embodiment of the present invention, terminal includes the knot of file according to the essential information of above-mentioned first video file got
Tail tag will judges whether above-mentioned first video file can generate thumbnail, if the ending of above-mentioned first video file is masked as
Eof, then judge that above-mentioned first video file can generate thumbnail, if the ending mark of above-mentioned first video file is not eof,
Then judge that above-mentioned first video file can not generate thumbnail.
S203, judge whether the first video file duration exceedes predetermined threshold value.
In the embodiment of the present invention, if terminal includes the ending mark of file according to the essential information of above-mentioned first video file
Judge that above-mentioned first video file can generate thumbnail, then video text is included according to the essential information of above-mentioned first video file
The duration of part judges whether the duration of above-mentioned first video file exceedes time threshold set in advance, for example, set in advance
Time threshold is 5s, and whether terminal judges the duration of above-mentioned first video file more than 5s.Due to 1s video at least 18 figures
As more than frame, more than 5s image key frame is just enough, and the GIF figure effects of generation are also relatively good, therefore above-mentioned predetermined threshold value
It may be set to 5s.
Multiple key images frames in S204, extraction first video file.
In the embodiment of the present invention, if terminal judges the duration of above-mentioned first video file and exceedes predetermined threshold value, in extraction
Multiple key images frames in the first video file are stated, wherein, above-mentioned multiple images frame includes multiple key images frames, above-mentioned
Picture frame includes I frames (key frame), P frames and B frames, and the embodiment of the present invention is used to generate GIF pictures, only need to extract key frame i.e.
Can.If terminal judges that the duration of above-mentioned first video file not less than predetermined threshold value, terminates to generate breviary to the video file
The operation of figure.
S205, by the multiple key images frames being drawn into according to default coded system carry out transcoding, after obtaining transcoding
Multiple key images frames, and by after the transcoding multiple key images frames add thumbnail image concentrate.
In the embodiment of the present invention, terminal is turned the multiple key images frames being drawn into according to default coded system
Code, to reduce the resolution ratio of each key images frame, transcoding is carried out to picture frame coded system is carried out according to the situation of reality
Set, wherein, above-mentioned pre-arranged code mode includes but is not limited to：ASCII、GB2312、GBK、GB18030、CP936、BIG5、
ISO-8859-1, UCS-2 and UTF-16 etc..For example, the digit of the pixel of picture frame is the bitmap of 32 RGBs, if eventually
The relatively low bitmap that the picture frame can be processed into 8 of memory configurations at end, so only retain dominant hue part, you can to ensure to regard
Frequency is not situation that is very fuzzy, or not seeing, and having much limit can reduce the power consumption that renders of broadcasting, if the internal memory of terminal is matched somebody with somebody
Put the higher bitmap that the picture frame can be processed into 16, so can both ensure that video was clear, again can the reduction of certain limit broadcast
Put the power consumption rendered.And the key images frame after transcoding is added into thumbnail image and concentrated.
S206, the multiple key images frames for concentrating the thumbnail image are compressed into a dynamic GIF picture.
In the embodiment of the present invention, the key images frame after the transcoding that above-mentioned thumbnail image is concentrated is sent into the form of frames
GIF encoders, coding is compressed to above-mentioned key images frame, be compressed into one can dynamic play GIF pictures, wherein, on
State the GIF coding standards that GIF encoders quote unification of the motherland.Then GIF picture playings are controlled by View modes, due to terminal
Power consumption typically all can be bigger when opening video file, so as far as possible control in a visual terminal interface, as far as possible
Only need to allow sight may it is important to note that middle part video playback, if video file removes interface or is deleted, control
Above-mentioned dynamic thumbnail stops playing or deleted.
In the embodiment of the present invention, by extracting multiple key images frames of video file, the multiple keys that will be drawn into are schemed
As frame progress transcoding extraction, and thumbnail image concentration is added, and the picture frame that above-mentioned thumbnail image is concentrated is compressed into one
Individual dynamic GIF pictures, realize the rapid preview of video file so that user understands the main of video file in a short time
Information, improve Consumer's Experience.
Fig. 3 is referred to, is a kind of 3rd embodiment stream of the generation method of dynamic thumbnail provided in an embodiment of the present invention
Cheng Tu；This method may include following steps：
S301, first video file is parsed to obtain the essential information of first video file.
In the embodiment of the present invention, terminal parses above-mentioned first video file to obtain the basic letter of above-mentioned first video file
Breath, wherein, above-mentioned essential information includes but is not limited to：The duration of video file, audio stream, video flowing, mime Type types,
Ending mark of bit rate type, the coded system of video flowing and video file etc..Because the dynamic thumbnail of generation is
As long as video does not have the compression video of audio, therefore the essential information for parsing video file need not be to some features of audio stream
Parsed.For example, by taking MP4 files as an example, terminal needs to parse the different types of BOX of MP4 files, wherein, including image
The long width values of frame, the coded format of video file, the duration etc. of video file, then pass through the long width values and code check of picture frame
The size of each frame is calculated, finally only includes the content (data segment not decoded) of mdat sections.
The essential information for first video file that S302, basis are got judges that first video file whether can
Generate thumbnail.
In the embodiment of the present invention, terminal includes the knot of file according to the essential information of above-mentioned first video file got
Tail tag will judges whether above-mentioned first video file can generate thumbnail, if the ending of above-mentioned first video file is masked as
Eof, then judge that above-mentioned first video file can generate thumbnail, if the ending mark of above-mentioned first video file is not eof,
Then judge that above-mentioned first video file can not generate thumbnail.
The essential information for first video file that S303, basis are got is chosen for decoding the first video text
The decoder of part, first video file is decoded using the decoder of selection, to obtain first video
The decoded picture frame of file.
If the ending mark that terminal includes file according to the essential information of above-mentioned first video file judges that above-mentioned first regards
Frequency file can generate thumbnail, then suitable decoder is chosen according to the mime Type types of video file, further according to video
The coded system of file determines suitable decoder, while pays attention to the configuration of decoder, and decoded data are defeated from decoder
Go out in Buffer and take out, wherein, above-mentioned data are the original data stream of yuv format.
Between-line spacing of S304, the decoded picture frame to first video file entering extracts the multiple to obtain
Picture frame.
In the embodiment of the present invention, video file is compressed the forms such as AVI, wma, MP4, flash of generation by multiple images frame
Video file, because existing video file is larger, then terminal generation dynamic thumbnail before, it is not necessary to extract video file
All picture frames, the decoded picture frame of terminal-pair enter between-line spacing extraction, the multiple images frame after being extracted, wherein, on
State and extract a frame at intervals of every 20 frames.
S305, by extracting obtained the multiple picture frame according to default ratio and being compressed with more after being compressed
Individual picture frame, and the multiple images frame after the compression is added into thumbnail image and concentrated.
In the embodiment of the present invention, the multiple images frame being drawn into is compressed extraction according to default ratio, pressed
Picture frame after contracting, and the picture frame after compression is added into thumbnail image and concentrated, wherein, above-mentioned default ratio is included but not
It is limited to：4:3、16:9、16:10、5:4 etc., for example, 720P image quality, a total of 1280*720 pixel, due to generation
Thumbnail need not be so high resolution ratio, for example the size to be generated is that default ratio setting (can be herein by 320*240
4:The size of 3 ratios).
S306, the picture frame that the thumbnail image is concentrated is write to the second video file for being capable of dynamic play.
In the embodiment of the present invention, the frame two field picture that above-mentioned thumbnail image is concentrated is write newly by MPEG4Writer
File in, generate second video file for being capable of dynamic play, wherein, above-mentioned second video file is above-mentioned first to regard
The dynamic thumbnail of frequency file.Then the second video file is controlled to play by View modes, because the power consumption of terminal typically exists
All can be bigger when opening video file, so control only needs to allow sight in a visual terminal interface as far as possible as far as possible
May it is important to note that middle part video playback, if video file remove interface or be deleted, control above-mentioned dynamic thumbnail
Figure stops playing or deleted.
In the embodiment of the present invention, the multiple images frame of video file, the multiple images frame that will be drawn into are extracted by being spaced
The default ratio of case is compressed extraction, and the picture frame after compression is added into thumbnail image and concentrated, and by above-mentioned breviary
The second video file of dynamic play is capable of in picture frame write-in in figure image set, is realized the rapid preview of video file, is made
The main information that user understands video file in a short time is obtained, improves Consumer's Experience.
Fig. 4 is referred to, is the first embodiment structural representation of terminal provided in an embodiment of the present invention；The device may include
Following steps：
Extracting unit 101, for extracting the multiple images frame of the first video file.
In the embodiment of the present invention, video file is by lattice such as AVI, wma, MP4, flash of the compression generation of multiple images frame
The video file of formula, because existing video file is larger, before terminal generation dynamic thumbnail, it is not necessary to extract video file
All picture frames, therefore generate dynamic thumbnail method first step first extract the first video file be used for generate
The multiple images frame of dynamic thumbnail, wherein, " multiple " represent two or more, and above-mentioned dynamic thumbnail is represented through overvoltage
Contracting mode handle after can dynamic play GIF pictures or video file, facilitate user's preview, above-mentioned first video file regards for original
Frequency file.
Unit 102 is added, is concentrated for the multiple images frame being drawn into be added into thumbnail image.
In the embodiment of the present invention, the multiple images frame for being used to generate dynamic thumbnail being drawn into is added thumbnail by terminal
Stored in image set, above-mentioned thumbnail image collection can be stored in the local storage space of terminal, high in the clouds, or the terminal
Memory space of external carry etc..
Generation unit 103, the picture frame for being concentrated according to the thumbnail image generate dynamic thumbnail.
In the embodiment of the present invention, the multiple images frame generation dynamic for the storage that terminal is concentrated according to above-mentioned thumbnail image contracts
Sketch map, wherein, thumbnail represents the small figure after the compressed mode of picture is handled in picture frame or terminal on webpage, in video,
Because thumbnail is compact, loading velocity is fast, therefore is frequently used for fast browsing, and above-mentioned dynamic thumbnail includes being capable of dynamic play
Video file or GIF pictures.
In the embodiment of the present invention, the multiple images frame of video file is extracted by extracting unit 101, adding unit 102 will
The multiple images frame being drawn into adds thumbnail image and concentrated, the image that generation unit 103 is concentrated according to above-mentioned thumbnail image
Frame generates dynamic thumbnail, it is achieved thereby that the rapid preview of video file so that user understands video file in a short time
Main information, improve Consumer's Experience.
Fig. 5 is referred to, is the second embodiment structural representation of terminal provided in an embodiment of the present invention；The device may include
Following steps：
Resolution unit 104, for parsing first video file to obtain the essential information of the video file, its
In, the extracting unit is specifically used for：Including the knot of file according to the essential information of first video file got
In the case that tail tag will judges that first video file can generate dynamic thumbnail, the more of first video file are extracted
Individual picture frame.
Judging unit 1011, for judging whether the duration of first video file exceedes predetermined threshold value.
First extracting unit 1012, the duration for judging first video file in the judging unit exceed default
Threshold value, then the key images frame in first video file is extracted, wherein, the multiple picture frame includes multiple key images
Frame.
Transcoding units 1021, for the multiple key images frames being drawn into be carried out into transcoding according to default coded system,
To obtain multiple key images frames after transcoding.
First adds unit 1022, for the multiple key images obtained after transcoding for obtaining the transcoding units transcoding
Frame adds thumbnail image and concentrated.
Generation unit 103, multiple key images frames for the thumbnail image to be concentrated are compressed into one dynamically
GIF pictures.
In the embodiment of the present invention, multiple key images frames of video file, transcoding are extracted by the first extracting unit 1012
The multiple key images frames being drawn into are carried out transcoding by unit 1021, and first adds unit 1022 by 1021 turns of the transcoding units
Multiple key images frames after the obtained transcoding of code add thumbnail image and concentrated, and generation unit 103 is by above-mentioned thumbnail image
The picture frame of concentration is compressed into a dynamic GIF picture, realizes the rapid preview of video file so that user is in the short time
The interior main information for understanding video file, improves Consumer's Experience.In the embodiment of the present invention, in the specific implementation, the reality of above-mentioned terminal
Step in the first embodiment for the generation method that existing mode can be found in a kind of dynamic thumbnail provided in an embodiment of the present invention
S201-S206, it will not be repeated here.
Fig. 6 is referred to, is the 3rd embodiment structural representation of terminal provided in an embodiment of the present invention；The device may include
Following steps：
Resolution unit 104, for parsing first video file to obtain the essential information of the video file, its
In, the extracting unit is specifically used for：Including the knot of file according to the essential information of first video file got
In the case that tail tag will judges that first video file can generate dynamic thumbnail, the more of first video file are extracted
Individual picture frame.
Unit 1013 is chosen, for being chosen according to the essential information of first video file got for decoding institute
State the decoder of the first video file.
Decoding unit 1014, for using choosing decoder that unit selection goes out to being solved to first video file
Code, to obtain the decoded picture frame of first video file.
Second extracting unit 1015, for entering between-line spacing to the decoded picture frame of first video file
Extract, to obtain the multiple picture frame.
Compression unit 1023, it is compressed for obtained the multiple picture frame will to be extracted according to default ratio, with
Multiple images frame after being compressed.
Second adds unit 1024, and the multiple images frame for compressing to obtain the compression unit adds thumbnail image
Concentrate.
Generation unit 103, the picture frame write-in that the thumbnail image is concentrated is capable of to the second video text of dynamic play
Part, second video file are the dynamic thumbnail.
In the embodiment of the present invention, by the second extracting unit 1015 to the described decoded of first video file
Picture frame enters between-line spacing extraction, and to obtain the multiple picture frame, compression unit 1023 will extract obtained the multiple image
Frame is compressed according to default ratio, and unit 1024 is added with the multiple images frame after being compressed, second, for will described in
Compression unit compresses obtained multiple images frame and adds thumbnail image to concentrate, and generation unit 103 is by above-mentioned thumbnail image collection
In picture frame write-in be capable of the second video file of dynamic play, realize the rapid preview of video file so that Yong Hu
The main information of video file is understood in short time, improves Consumer's Experience.In the embodiment of the present invention, in the specific implementation, above-mentioned end
The implementation at end can be found in a kind of first embodiment of the generation method of dynamic thumbnail provided in an embodiment of the present invention
Step S301-S306, will not be repeated here.
Fig. 7 is referred to, Fig. 7 is a kind of fourth embodiment structural representation of terminal provided in an embodiment of the present invention.This reality
Applying the terminal described in example includes：At least one input equipment 1000；At least one output equipment 2000；At least one processor
3000, such as CPU；With memory 4000, above-mentioned input equipment 1000, output equipment 2000, processor 3000 and memory
4000 are connected by bus 5000.
Wherein, the contact panel of above-mentioned input equipment 1000 concretely terminal, including touch-screen and touch screen, for examining
The operational order surveyed in terminal touch panel.
The display screen of above-mentioned output equipment 2000 concretely terminal, for exporting, display information.
Above-mentioned memory 4000 can be high-speed RAM memory, or non-labile memory (non-volatile
), such as magnetic disk storage memory.Above-mentioned memory 4000 is used for above-mentioned memory 4000 and is used to store batch processing code,
Above-mentioned input equipment 1000, output equipment 2000 and processor 3000 are used to call the program code stored in memory 4000,
Perform following operation：
Above-mentioned processor 3000, for extracting the multiple images frame of the first video file；
The multiple images frame being drawn into is added into thumbnail image to concentrate；
The picture frame concentrated according to the thumbnail image generates dynamic thumbnail.
In some feasible embodiments, above-mentioned processor 3000 extract the first video file multiple images frame it
Before, also particularly useful for：
First video file is parsed to obtain the essential information of the video file；
The ending mark for including file according to the essential information of first video file got judges the video
Whether file can generate thumbnail.
In some feasible embodiments, if the dynamic thumbnail of generation includes GIF pictures, above-mentioned processor 3000 is also
It is specifically used for：
Judge whether the first video file duration exceedes predetermined threshold value；
If judging, the first video file duration exceedes predetermined threshold value, extracts in the first video file duration
Key frame, multiple key images frames after being extracted.
In some feasible embodiments, if the dynamic thumbnail of generation includes GIF pictures, above-mentioned processor 3000 is also
It is specifically used for：
The multiple key images frames being drawn into are subjected to transcoding extraction according to default coded system, obtain the pass after transcoding
Key picture frame, and the key images frame after transcoding is added into thumbnail image and concentrated.
In some feasible embodiments, if the dynamic thumbnail of generation includes GIF pictures, above-mentioned processor 3000 is also
It is specifically used for：
The picture frame that the thumbnail image is concentrated is compressed into a dynamic GIF picture.
In some feasible embodiments, if the dynamic thumbnail of generation includes the video file for being capable of dynamic play,
Above-mentioned processor 3000 also particularly useful for：
According to the essential information of first video file got, choose for decoding first video file
Decoder, first video file is decoded, obtains decoded picture frame；
Decoded picture frame is entered into between-line spacing to extract, the multiple images frame after being extracted.
In some feasible embodiments, if the dynamic thumbnail of generation includes the video file for being capable of dynamic play,
Above-mentioned processor 3000 also particularly useful for：
The multiple images frame being drawn into is compressed extraction according to default ratio, the picture frame after being compressed, and
Picture frame after compression is added into thumbnail image to concentrate.
In some feasible embodiments, if the dynamic thumbnail of generation includes the video file for being capable of dynamic play,
Above-mentioned processor 3000 also particularly useful for：
The picture frame write-in that the thumbnail image is concentrated is capable of to the second video file of dynamic play.
In some feasible embodiments, above-mentioned output equipment 2000 can be by View modes by the dynamic thumbnail of generation
Figure is shown on a terminal screen.
In the specific implementation, input equipment 1000, output equipment 2000 and processor described in the embodiment of the present invention
3000 can perform the realization described in a kind of each embodiment of the generation method of dynamic thumbnail provided in an embodiment of the present invention
Mode, the first embodiment of terminal provided in an embodiment of the present invention is also can perform to the reality of the terminal described in 3rd embodiment
Existing mode, will not be repeated here.
Step in present invention method can be sequentially adjusted, merged and deleted according to actual needs.
Module or unit in device of the embodiment of the present invention can be combined, divided and deleted according to actual needs.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in-computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Above disclosure is only preferred embodiment of present invention, can not limit the right model of the present invention with this certainly
Enclose, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (11)
- A kind of 1. generation method of dynamic thumbnail, it is characterised in that including：Extract the multiple images frame of the first video file；The multiple images frame being drawn into is added into thumbnail image to concentrate；The picture frame concentrated according to the thumbnail image generates dynamic thumbnail.
- 2. according to the method for claim 1, it is characterised in that the multiple images for extracting first video file Frame, including：Judge whether the duration of first video file exceedes predetermined threshold value；If judging, the duration of first video file exceedes the predetermined threshold value, extracts more in first video file Individual key images frame, wherein, the multiple picture frame includes multiple key images frames.
- 3. according to the method for claim 1, it is characterised in that the multiple images for extracting first video file Frame, including：First video file is parsed to obtain the essential information of first video file；The decoding for decoding first video file is chosen according to the essential information of first video file got Device；First video file is decoded using the decoder of selection, to obtain the solution of first video file Picture frame after code；Between-line spacing extraction is entered to obtain the multiple picture frame to the decoded picture frame of first video file.
- 4. according to the method described in any one of claims 1 to 3, it is characterised in that described by the multiple keys being drawn into Picture frame adds thumbnail image and concentrated, including：The multiple key images frames being drawn into are subjected to transcoding according to default coded system, to obtain multiple keys after transcoding Picture frame, and multiple key images frames after the transcoding are added into thumbnail image and concentrated.
- 5. according to the method described in any one of claims 1 to 3, it is characterised in that described by the multiple images being drawn into Frame adds thumbnail image and concentrated, including：By extracting obtained the multiple picture frame according to default ratio and being compressed with the multiple images frame after being compressed, And the multiple images frame after the compression is added into thumbnail image and concentrated.
- 6. according to the method described in any one of claim 1 to 5, it is characterised in that described to be concentrated according to the thumbnail image Key images frame generation dynamic thumbnail, including：Multiple key images frames that the thumbnail image is concentrated are compressed into a dynamic GIF picture.
- 7. according to the method described in any one of claim 1 to 5, it is characterised in that described to be concentrated according to the thumbnail image Picture frame generation dynamic thumbnail, including：The write-in of picture frame that the thumbnail image is concentrated is capable of the of dynamic play Two video files, second video file are the dynamic thumbnail.
- 8. according to the method described in any one of claim 1 to 7, it is characterised in that described to extract the multiple of the first video file Before picture frame, methods described also includes：First video file is parsed to obtain the essential information of first video file；Wherein, the multiple images frame for extracting the first video file, including：According to first video file got Essential information including file ending mark judge that first video file can generate dynamic thumbnail in the case of, take out Take the multiple images frame of first video file.
- A kind of 9. terminal, it is characterised in that including：Extracting unit, for extracting the multiple images frame of the first video file；Unit is added, is concentrated for the multiple images frame being drawn into be added into thumbnail image；Generation unit, the picture frame for being concentrated according to the thumbnail image generate dynamic thumbnail.
- A kind of 10. terminal, it is characterised in that including：Processor and memory；Wherein, the processor is by calling the code in the memory or instructing to perform such as power Profit requires the method described in 1 to 8 any one.
- A kind of 11. computer-readable storage medium, it is characterised in that it is used to store computer program, wherein, the computer program So that computer performs the method as described in claim any one of 1-8.
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| CN201410741244.5A CN104540000B (en) | 2014-12-04 | 2014-12-04 | The generation method and terminal of a kind of dynamic thumbnail |
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| CN112291618A (en) * | 2020-10-13 | 2021-01-29 | 北京沃东天骏信息技术有限公司 | Video preview content generating method and device, computer device and storage medium |
| CN112291618B (en) * | 2020-10-13 | 2023-04-07 | 北京沃东天骏信息技术有限公司 | Video preview content generation method and device, computer device and storage medium |
| CN112738416A (en) * | 2020-12-23 | 2021-04-30 | 上海哔哩哔哩科技有限公司 | Thumbnail previewing method, system, device and computer-readable storage medium |
| CN112738416B (en) * | 2020-12-23 | 2023-05-02 | 上海哔哩哔哩科技有限公司 | Thumbnail preview method, system, device and computer readable storage medium |
| CN112866805A (en) * | 2021-04-23 | 2021-05-28 | 北京金和网络股份有限公司 | Video acceleration processing method and device and electronic equipment |
| CN113556492A (en) * | 2021-07-09 | 2021-10-26 | 深圳传音控股股份有限公司 | Thumbnail generation method, mobile terminal and readable storage medium |
| CN113556492B (en) * | 2021-07-09 | 2023-10-20 | 深圳传音控股股份有限公司 | Thumbnail generation method, mobile terminal and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104540000B (en) | 2017-10-17 |
| CN107465954B (en) | 2019-09-06 |
| CN104540000A (en) | 2015-04-22 |
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