CN106412691A - Interception method and device of video images - Google Patents
Interception method and device of video images Download PDFInfo
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- CN106412691A CN106412691A CN201510446684.2A CN201510446684A CN106412691A CN 106412691 A CN106412691 A CN 106412691A CN 201510446684 A CN201510446684 A CN 201510446684A CN 106412691 A CN106412691 A CN 106412691A
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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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream 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 or rendering scenes according to encoded video stream 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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- 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 or rendering scenes according to encoded video stream scene graphs
- H04N21/44016—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip
-
- 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 or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
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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
- H04N21/47202—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 requesting content on demand, e.g. video on demand
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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
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Television Signal Processing For Recording (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the present invention discloses an interception method and device of video images used for improving the processing efficiency of the video image interception. The interception method of the video images provided by the embodiment of the present invention comprises the steps of receiving an image interception instruction sent by a user via a current playing terminal, wherein the image interception instruction comprises an interception video time point, an image interception area designated by the user in a playing interface of the current playing terminal and the target uses selected by the user; according to the image interception instruction, obtaining the decoded video data corresponding to the image interception area in a video file played at the interception video time point; according to the image interception instruction, carrying out the file format coding on the obtained decoded video data to generate the video screenshots intercepted from the video file; according to the target uses, outputting the video clips.
Description
Technical field
The present invention relates to field of computer technology, more particularly, to a kind of intercept method of video image and device.
Background technology
In recent years, since, multimedia information technology development is quick, and user increasingly gets used to handheld terminal to broadcast
Put video, when user is during viewing video, when very interested in certain picture of video, user
Have and intercept, from the video play, the needs that certain picture stores.And in image interception in prior art
Technology in, user can submit sectional drawing order to terminal, and terminal needs to stop currently playing video, and
Preserve the current video image stopping and playing, this image interception scheme is timely to certain picture of video
Crawl, the treatment effeciency of image-capture is very low.
Content of the invention
Embodiments provide a kind of intercept method of video image and device, for improving video figure
As the treatment effeciency intercepting.
For solving above-mentioned technical problem, the embodiment of the present invention provides technical scheme below:
In a first aspect, the embodiment of the present invention provides a kind of intercept method of video image, including:
Receive user is instructed by the image interception that currently playing terminal sends, and described image intercepts instruction bag
Include:The figure that intercepting video time point, described user delimit in the broadcast interface of described currently playing terminal
As intercepting the intended applications in region and described user selection;
Intercept instruction according to described image to obtain and in the video file that described intercepting video time point is play
Decoded video data corresponding with image interception region;
Instruction is intercepted according to described image file format coding is carried out to the decoded video data getting,
Generate and intercept the video interception obtaining from described video file;
According to described intended applications, described video segment is exported.
Second aspect, the embodiment of the present invention also provides a kind of terminal, including:
Receiver module, is instructed by the image interception that currently playing terminal sends for receive user, described
Image interception instruction includes:Intercept video time point, described user described currently playing terminal broadcasting
The image interception region delimited in interface and the intended applications of described user selection;
Video data acquisition module, obtains and in described intercepting video for intercepting instruction according to described image
Decoded video data corresponding with image interception region in the video file that time point is play;
Document No. module, for intercepting instruction to the decoded video data getting according to described image
Carry out file format coding, generate and intercept the video interception obtaining from described video file;
Video interception output module, for exporting described video segment according to described intended applications.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below:
In embodiments of the present invention, when user sends image interception order by currently playing terminal, first
Receive image interception instruction, may include in image interception instruction:Intercept video time point, user delimit
Image interception region and intended applications, after the broadcast interface in terminal commences play out video file, work as broadcasting
When time reaches intercepting video time point, with image in the video file that can obtain and be currently played
Intercept region corresponding decoded video data, then according to image interception order to the decoding getting
Video data carries out file format coding, intercepts the video obtaining and cuts such that it is able to generate from video file
Figure.It is corresponding with image interception region in the video file play by obtaining in the embodiment of the present invention
Decoded video data, the mode then carrying out file format coding to decoded video data again obtains
Need the video interception intercepting, rather than obtain video interception by capturing video image, the present invention is real
Apply in example and can obtain video interception from the file format coding of decoded video data, to video interception
Intercepting process efficiency is very high and accurate, will not be affected by terminal response performance.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be in embodiment description
The accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, to those skilled in the art, can also obtain according to these accompanying drawings
Other accompanying drawings.
Fig. 1 is a kind of process blocks schematic diagram of the intercept method of video image provided in an embodiment of the present invention;
Fig. 2 is the acquisition modes schematic diagram in image interception region in the embodiment of the present invention;
Fig. 3 is a kind of intercepting schematic flow sheet of video image in the embodiment of the present invention;
Fig. 4 is the handling process schematic diagram of decoded video data provided in an embodiment of the present invention;
Fig. 5-a is a kind of composition structural representation of terminal provided in an embodiment of the present invention;
Fig. 5-b is the composition structural representation of another kind terminal provided in an embodiment of the present invention;
Fig. 5-c is the composition structural representation of another kind terminal provided in an embodiment of the present invention;
Fig. 5-d is the composition structural representation of another kind terminal provided in an embodiment of the present invention;
Fig. 5-e is the composition structural representation of another kind terminal provided in an embodiment of the present invention;
Fig. 5-f is the composition structural representation of another kind terminal provided in an embodiment of the present invention;
Fig. 6 is that the intercept method of video image provided in an embodiment of the present invention is applied to the composition structure of terminal
Schematic diagram.
Specific embodiment
Embodiments provide a kind of intercept method of video image and device, for improving video figure
As the treatment effeciency intercepting.
For enabling the goal of the invention of the present invention, feature, advantage more obvious and understandable, below will
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
Ground describes it is clear that the embodiments described below are only a part of embodiment of the present invention, and not all
Embodiment.Based on the embodiment in the present invention, the every other enforcement that those skilled in the art is obtained
Example, broadly falls into the scope of protection of the invention.
Term " comprising " and " having " in description and claims of this specification and above-mentioned accompanying drawing
And their any deformation is it is intended that cover non-exclusive comprising, to comprise a series of units
Process, method, system, product or equipment are not necessarily limited to those units, but may include not clearly
Listing or for these processes, method, product or the intrinsic other units of equipment.
It is described in detail individually below.
One embodiment of the intercept method of video image of the present invention, specifically can apply to video playback
Need in terminal, in the scene intercept video image, to refer to shown in Fig. 1, one embodiment of the invention carries
For video image intercept method, may include steps of:
101st, receive user is instructed by the image interception that currently playing terminal sends.
Wherein, image interception instruction includes:Intercept video time point, user broadcasts currently playing terminal
Put the intended applications that the image interception region delimited in interface and user select.
In embodiments of the present invention, user operate terminal carry out video playback when, user is watching very
During the video of thanks interest, user can operate the intercepting video button in terminal, thus triggering terminal is held
The intercepting of row video image, for example, in the Touch screen of terminal display one intercepting image button, when with
When family needs to intercept image from video, the intercepting image button on user's point touching screen, Yong Huxiang
Terminal sends an image interception instruction, and the instruction of this image interception includes the intercepting video time of user's needs
Point, does not limit, and in embodiments of the present invention, user directly can determine needs one intercepted to regard
Frequency image or continuously multiple video images or multiple video images discrete, then user can be to
Terminal sends an image interception instruction, includes one or more intercepting in the instruction of this image interception
Video time point, or, user can send multiple images to terminal and intercept instruction, cut in each image
Instruction fetch includes an intercepting video time point, thus terminal can determine from which time point to start to cut
Take video, and need to intercept is individual video image or multiple video images.
In addition, in embodiments of the present invention, when user needs the portion of the broadcast interface to currently playing terminal
Split screen region is intercepted, without intercept whole broadcast interface video pictures when, user equipment
An image interception region can be delimited in the broadcast interface of currently playing terminal, then cut in this image
The picture beyond region is taken not intercept, now user equipment can also carry use in video intercepting instruction
The image interception region that family delimited from broadcast interface.In addition, user instructed by video intercepting acceptable
Selection target purposes, is truncated to video image with instruction terminal and can export according to specific intended applications and regard
Frequency image, such as user by the video image being truncated to achieve, or achieve after share QQ space or
In person's wechat, intended applications specify the special-purpose that user needs the video image of output, the then present invention
The video image that middle video intercepting obtains can meet the requirement to above-mentioned intended applications for the user.
In some embodiments of the invention, user is sent to the image interception instruction of terminal except including cutting
Take the image interception region that video time point, user delimit in the broadcast interface of currently playing terminal and
Outside the intended applications that user selects, can also include user needs the other information of instruction terminal, for example,
User can should be exported with instruction terminal and meet the video image what image parameter requires, the i.e. present invention
In can also further to intercept output video interception export phase according to the image parameter that user requires
The video interception answered, such that it is able to meet user to the more requirements intercepting video.
Specifically, in some embodiments of the invention, image interception instruction can also specifically include user
The destination file format selecting, that is, user can be with instruction terminal output image parameter as destination file format
Video interception, wherein, file format refers to the form of the file of video image itself, can be for example jpg,
Png, bmp etc., destination file format specifies user needs the particular file format of output, the then present invention
The video interception that middle video intercepting obtains can meet the requirement to above-mentioned destination file format for the user.
In some embodiments of the invention, image interception instruction can also specifically include the mesh of user's selection
Mark resolution, that is, user can video interception with instruction terminal output image parameter as target resolution, its
In, resolution refers to the setting of display how much information of video image, generally wide and high with 16 multiples is all
Step units, can be for example i.e. 16 × n (n=1,2,3 ... .), such as 176 × 144,352 × 288 etc.,
Target resolution specifies user needs the specified resolution of output, then video intercepting obtains in the present invention
Video interception can meet the requirement to above-mentioned target resolution for the user.
In some embodiments of the invention, image interception instruction can also specifically include the mesh of user's selection
Logo image form, that is, user can with instruction terminal output image parameter for the video interception of target image form,
Wherein, picture format refers to the picture material coded format of video image, can be for example jpg, png,
Bmp etc., target image form specifies user needs the particular image format of output, then regard in the present invention
Frequently intercept the video interception obtaining and can meet the requirement to above-mentioned target image form for the user.
In some embodiments of the invention, image interception instruction can also specifically include the mesh of user's selection
Logo image quality, that is, user can with instruction terminal export the video interception as objective image quality for the video parameter,
Wherein, picture quality refers to the transmission of video class requirement of video image, can characterize answering of picture format
Miscellaneous degree, for example, be divided into 3 grades or 5 grades by picture quality, and user can select the mesh needing
Logo image quality is level III, and objective image quality specifies user needs specific image quality of output etc.
Level, then the video interception that in the present invention, video intercepting obtains can meet user to above-mentioned objective image quality
Requirement.
In some embodiments of the invention, image interception instruction can also specifically include the mesh of user's selection
Mark purposes, that is, user can be with the video interception of instruction terminal output special-purpose, and wherein, intended applications are
Refer to video image be intercepted after output pathway, can be for example history file or achieve after share, mesh
Mark purposes specifies the special-purpose that user needs the video interception of output, then in the present invention, video intercepting obtains
To video interception can meet the requirement to above-mentioned intended applications for the user.
It should be noted that the image interception instruction in foregoing teachings, terminal in the present invention being received includes
Various image parameters be described in detail it is to be understood that in the present invention image interception instruction in
One or more above-mentioned image parameters can also be included, specifically need user to select which kind of or which
Plant image parameter, specifically can be determined with connected applications scene.
102nd, according to image interception instruction obtain with intercept video time point play video file in figure
As intercepting region corresponding decoded video data.
In embodiments of the present invention, the image interception that terminal receives including intercepting video time point instructs it
Afterwards, in the view screen of terminal-pair terminal, currently playing video file is monitored, when getting broadcasting
Between progress, when reproduction time reach intercepting video time point when, the reproduction time being currently played is
For intercepting video time point, intercept video time point at this, terminal gets and is currently played
Decoded video data corresponding with image interception region in video file, and in the present invention, terminal obtains
Decoded video data correspond to intercept video time point play video file.
Wherein, the process of video playback is exactly that video file is decoded as the process that initial data shows again,
To intercept video time point as labelling, obtain the video file being currently played, due to video file quilt
Become decoded video data, according to right before and after decoding after software decoder or hardware decoder decoding
Should be related to, corresponding decoded video data can be found by the video file correspondence being currently played,
Decoded video data is typically a kind of raw data format, by Y (brightness), U (colourity), V (colourity) three
Individual component composition, is generally used for field of video compression, conventional is that decoded video data can be
YUV420.For example, the time shafts of reproduction time show that playing is 4 points of video files of 20 seconds,
If the intercepting video time point carrying in the image interception instruction that terminal receives is 4 minutes and 22 seconds, currently
When the time shafts of reproduction time go to 4 points and 22 seconds, obtain in the video file that this moment playing with figure
As intercepting region corresponding decoded video data.
In embodiments of the present invention, terminal is receiving the image interception instruction comprising to intercept video time point
Afterwards, obtain decoded video data process be intercept video time point execution it is possible to understand that
It is that, if image interception instruction in the present invention includes multiple intercepting video time points, terminal can root
Get corresponding multiple decoded video data according to multiple intercepting video time points.
In some embodiments of the invention, step 102 obtains according to image interception instruction and regards with intercepting
Decoded video data corresponding with image interception region in the video file that frequency time point is play, can be also
Comprise the steps:
Deviation post between A1, calculating image interception region and the broadcast interface of currently playing terminal;
The deviation post that A2, basis calculate, determines image interception region and is intercepting video time program request
The coordinate mapping relations of the video image in the video file put;
A3, read from the frame buffer of currently playing terminal and image interception area according to coordinate mapping relations
Domain corresponding decoded video data.
Wherein, the display screen of currently playing terminal can be arranged an image interception frame, user is permissible
Dragged image intercepts frame it is possible to image interception frame is carried out with size, length, wide high adjustment scaling,
Terminal gets, to the adjustment situation of image interception frame, the image that user delimit in broadcast interface according to user
Intercept region, thus terminal can determine user and needs which partly or completely regards in broadcast interface
Frequency picture is intercepted.Refer to as shown in Fig. 2 for the obtaining of image interception region in the embodiment of the present invention
Take schematic diagram, in Fig. 2, region A is the full screen region of terminal, and region B to region C is
Video playback area, region B is broadcast interface, the image interception region that region C delimit for user.When
So, the position of region C and area size can be intercepted frame to adjust by user's drag image.
After determining the image interception region that user delimit, execution step A1, terminal calculates image interception area
Deviation post between the broadcast interface of domain and currently playing terminal is that is to say, that the broadcast interface of terminal
For rectangle frame, image interception region is rectangle frame, needs to calculate four corner phases in image interception region
For the deviation post at four angles of the broadcast interface of currently playing terminal, thus being assured that out image
Intercept the deviation post between region and the broadcast interface of currently playing terminal.As shown in Fig. 2 video is civilian
When part is play on the display screen, can be full screen play, as shown in region A in Fig. 2 it is also possible to
It is non-full screen region, as shown in the region B in Fig. 2.Can also be that region B is any to region A
One region.No matter being in what region, user can mark in video playback area one square
Region, is used as wanting truncated picture to intercept region, can be calculated according to location of pixels relation and draw
Determine the deviation post that region is with respect to four angles of video playback area.
After getting the deviation post that image interception region is with respect to video playback interface, execution step A2,
According to the deviation post calculating, determine image interception region with the video file being currently played in
The coordinate mapping relations of video image.The image interception region calculating in step A2 is broadcast with respect to video
Put the deviation post at interface, and between video playback interface and original video image, also there is scaling relation,
It is possible to video playback interface identical with original video image, then be exactly one to one equal proportion,
It is also possible to user when operating terminal, original video image to be zoomed in or out, be shown as working as
Front video playback interface, then be accomplished by the image interception calculating region with respect to video playback circle
The deviation post in face is remapped, with the video literary composition obtaining image interception region be currently played
The coordinate mapping relations of the video image in part.For example as shown in Fig. 2 sitting for original video image
Mark mapping, because region B to region C is uncertain, that is, the size of video playback area is regarded with original
Frequency image not of uniform size fixed equal, so in addition it is also necessary to calculate after completing above-mentioned deviation post
Coordinate mapping relations in original video image for this deviation post.
In some embodiments of the invention, step A3 according to coordinate mapping relations from currently playing terminal
Decoded video data corresponding with image interception region, wherein, currently playing end is read in frame buffer
In end just in playing video file, video file pass through software decoder or hardware decoder incited somebody to action
Video file is decoded as decoded video data, and terminal reads decoded video data from frame buffer, so
Terminal will be shown as broadcast interface in the decoded video reading data output to display screen afterwards, this
Can obtain and intercepting video time point by means of the decoded video data preserving in frame buffer in bright
The decoded video data of the video file that reproduction time is being play, gets the video literary composition play
After part corresponding decoded video data, carry out transformation of scale according to coordinate mapping relations, get with
Image interception region corresponding decoded video data, and beyond image interception region in broadcast interface
Decoded video data is not within the scope of the decoded video obtaining.
It should be noted that in some embodiments of the invention, terminal obtains and is intercepting video time
Point play video file in decoded video data corresponding with image interception region can also have other
Implementation, for example, get the corresponding source file of the video file being currently played first, then right
Source file is decoded again, can generate decoded video data, is compared according to coordinate mapping relations
Example conversion, gets decoded video data corresponding with image interception region, in such a manner
Decoded video data can be got.
In some embodiments of the invention, if the target that image interception instruction also includes user's selection is differentiated
Rate, step 103 carries out file format volume according to image interception instruction to the decoded video data getting
Code, generates before intercepting the video interception obtaining from video file, the video image that the present invention provides
Intercept method can also comprise the steps:
The former resolution of video image in the corresponding video file of decoded video data that B1, judgement get
Whether rate is identical with target resolution;
If the former resolution of B2 and target resolution differ, the decoded video data getting is corresponded to
Video file in the resolution of video image changed, obtain comprising getting of target resolution
Decoded video data.
Wherein, after step 102 gets decoded video data, if the image that terminal receives cuts
Target resolution is also included, then explanation user needs to specify the resolution of the video interception being truncated in instruction fetch
Rate, terminal can get the former resolution of video image first from the File header information of video file,
In video file, the former resolution of video image is that the video file play in the display screen of terminal is played
When the resolution that shows, if user needs to the former resolution of video image in video file to adjust, terminal
Display screen on can with display resolution adjust menu, be specified the video interception being truncated to by user
Resolution (target resolution carrying in image interception instruction), obtains video image in video file
After former resolution, judge whether target resolution is identical with former resolution, if target resolution and former point
Resolution is identical, then need not carry out the conversion of resolution again, if target resolution and former resolution differ,
Then need resolution is changed, specifically, third party library (such as ffmpeg) can be called real
The conversion of existing resolution, obtains the decoded video data getting comprising target resolution, then subsequently
Carry out file format coding in step 103 is exactly described herein to comprise getting of target resolution
Decoded video data, the decoded video data getting described in step 103 specially comprises mesh
The decoded video data getting of mark resolution.
In some embodiments of the invention, if the target that image interception instruction also includes user's selection is differentiated
Rate, under the aforementioned application scenarios performing step A1 to A3, step 103 instructs according to image interception
The decoded video data getting is carried out with file format coding, generation intercepts from video file and obtains
Video interception before, the intercept method of video image that the present invention provides can also comprise the steps:
C1, regard using coordinate mapping relations with the corresponding video file of decoded video data that gets
The former resolution of frequency image calculates resolution mapping value;
C2, judge whether resolution mapping value is identical with target resolution;
If C3 resolution mapping value is differed with target resolution, to the decoded video data getting
In corresponding video file, video image zooms in and out process, and the decoding getting after being scaled regards
Frequency evidence.
Wherein, after step 102 gets decoded video data, if the image that terminal receives cuts
Target resolution is also included, then explanation user needs to specify the resolution of the video interception being truncated in instruction fetch
Rate, terminal can get the former resolution of video image first from the File header information of video file,
In video file, the former resolution of video image is that the video file play in the display screen of terminal is played
When the resolution that shows, if user needs to the former resolution of video image in video file to adjust, terminal
Display screen on can with display resolution adjust menu, be specified the video interception being truncated to by user
Resolution (target resolution carrying in image interception instruction), obtains video image in video file
After former resolution, in conjunction with the application scenarios of aforementioned execution step A1 to A3, user is to original video figure
As being adjusted, then can generate coordinate mapping relations, i.e. image according to above-mentioned steps A1 to A3
Intercept the coordinate mapping relations of the video image in region and the video file being currently played, in conjunction with this
Coordinate mapping relations and former resolution calculate resolution mapping value, then judge target resolution and resolution
Whether rate mapping value is identical, if target resolution is identical with resolution mapping value, need not be to video file
Middle video image zooms in and out, if target resolution and resolution mapping value differ, needs to video
In file, video image zooms in and out, and specifically, third party library (such as ffmpeg) can be called real
The scaling of existing video image is processed, and the decoded video data getting after being scaled then subsequently walks
Carry out file format coding in rapid 103 be exactly described herein scaling after the decoded video getting
Data, the decoded video data that gets described in step 103 is specially getting after scaling
Decoded video data.
In some embodiments of the invention, if image interception instruction also includes the target image of user's selection
Form, step 103 carries out file format according to image interception instruction to the decoded video data getting
Coding, generates before intercepting the video interception obtaining from video file, the video image that the present invention provides
Intercept method can also comprise the steps:
D1, the former video format of the above-mentioned corresponding video file of decoded video data getting of acquisition;
D2, the video format of corresponding for the decoded video getting data video file is converted to target
Picture format, obtains the decoded video data getting comprising target image form.
Wherein, after step 102 gets decoded video data, if the image that terminal receives cuts
Target image form is also included, then explanation user needs to specify the figure of the video interception being truncated in instruction fetch
As form, terminal can get the former video of video image first from the File header information of video file
Form, in video file, the former video format of video image is the video literary composition play in the display screen of terminal
Video format when part is played, if user needs to the former video format of video image in video file to adjust
Whole, the display screen of terminal can be specified by user and to be truncated to display image Format adjusting menu
The picture format (the target image form carrying in image interception instruction) of video interception, obtains video literary composition
After the former video format of video image in part, former video format is carried out with the conversion of picture format, specifically
, third party library (such as ffmpeg) can be called to realize the conversion of picture format, obtain comprising mesh
The decoded video data getting of logo image form, then carry out file format volume in subsequent step 103
Code is exactly the decoded video data getting comprising target image form described herein, i.e. step
The decoded video data getting described in 103 specially comprises getting of target image form
Decoding video data.
In some embodiments of the invention, if image interception instruction also includes the target image of user's selection
Quality, step 103 carries out file format according to image interception instruction to the decoded video data getting
Coding, generates before intercepting the video interception obtaining from video file, the video image that the present invention provides
Intercept method can also comprise the steps:
E1, the former video quality of the above-mentioned corresponding video file of decoded video data getting of acquisition;
E2, the video quality of corresponding for the decoded video getting data video file is adjusted to target
Picture quality, obtains the decoded video data getting comprising objective image quality.
Wherein, after step 102 gets decoded video data, if the image that terminal receives cuts
Objective image quality is also included, then explanation user needs to specify the figure of the video interception being truncated in instruction fetch
As quality, terminal can get the former video of video image first from the File header information of video file
Quality, in video file, the former video quality of video image is the video literary composition play in the display screen of terminal
The video quality that part shows when being played, if user needs to the former video quality of video image in video file
Adjust, the display screen of terminal can adjust menu with image quality, to be specified intercepting by user
To video interception picture quality (i.e. the objective image quality that carries in image interception instruction), depending on
After the former video quality of video image in frequency file, former video quality is adjusted to objective image quality,
Specifically, third party library (such as ffmpeg) can be called to realize the conversion of picture quality, to be wrapped
The decoded video data getting containing objective image quality, then carry out tray in subsequent step 103
Formula coding is exactly the decoded video data getting comprising objective image quality described herein, that is,
The decoded video data getting described in step 103 specially comprises getting of objective image quality
Decoded video data.
103rd, file format coding is carried out to the decoded video data getting according to image interception instruction,
Generate and intercept the video interception obtaining from video file.
In inventive embodiments, get in abovementioned steps 102 and intercepted what video time point was play
Decoded video data corresponding with image interception region in video file, next to the solution getting
Code video data carries out packing encapsulation, makes the decoded video data getting by step 102 packaged
Form for file, you can so that file format coding is carried out to the decoded video data getting, thus
Can get the video interception that user needs to intercept, the video interception of generation is to broadcast from the broadcast interface of terminal
The video file put obtains.
In some embodiments of the invention, if image interception instruction also includes the file destination of user's selection
Form, then step according to image interception instruction file format volume is carried out to the decoded video data getting
Code, generates and intercepts the video interception obtaining from video file, specifically may include steps of:
G1, using file synthesis device by the decoded video getting data encoding be meet file destination lattice
The video interception of formula.
Wherein, after step 102 gets decoded video data, if the image that terminal receives cuts
Destination file format is also included, then explanation user needs to specify the literary composition of the video interception being truncated in instruction fetch
Part form, after execution step 102 gets decoded video data, specifically can use file synthesis
The decoded video getting data encoding is the video interception meeting destination file format by device, specifically,
Third party library (such as ffmpeg) can be called to realize the conversion of file format, be met target literary composition
The video image of part form, can carry file using during file synthesis device in the video interception generating
Header, carry in File header information is the basic feature information of video interception, for example File header information
Including:The attribute information of video interception.In addition, in some embodiments of the invention, the video of generation
Sectional drawing can not also carry File header information, but the configuration mode using acquiescence.
104th, according to the intended applications that user selects, video interception is exported.
In embodiments of the present invention, after intercepting out video interception from video file, can also according to
The needing of family exports video interception in specific purpose purposes, and the video being truncated to is cut by such as user
Figure achieves, or shares in QQ space or wechat after archive, and intended applications specify user's needs
The special-purpose of the video image of output, then the video interception that in the present invention, video intercepting obtains can meet
The requirement to above-mentioned intended applications for the user.
In some embodiments of the invention, step 103 instructs to the solution getting according to image interception
Code video data carries out file format coding, generates after intercepting the video interception obtaining from video file,
The intercept method of video image provided in an embodiment of the present invention can also comprise the steps:
H1, the method according to being truncated to video interception from video file, the multiple figures being sent according to user
As intercept instruction respectively obtain with multiple intercept video time points play video files in image interception
Region corresponding decoded video data, intercepts instruction to the decoded video getting according to multiple images
Data carries out file format coding, is truncated to the video interception of multiple from video file;
H2, by the video interception of multiple according to intercept video time point sequencing synthesized, obtain
The video segment intercepting out from video file;
H3, according to intended applications, video segment is exported.
Wherein, in step H1, user can get multiple videos by sending multiple images intercepting instruction
The corresponding decoding data of file, for example, be performed a plurality of times abovementioned steps 101 to step 103, can get
The video interception of multiple, then according to intercept the sequencing of video time point to getting in step H2
Multiple video images are synthesized, such that it is able to obtain the video segment of multiple video interception continuous,
The intended applications output video segment that finally can select according to user.Can to step H3 by step H1
Know, the intercept method of video image provided in an embodiment of the present invention can also be applied to the intercepting of video segment.
By the description to the embodiment of the present invention for the above example, user is sent out by currently playing terminal
When sending image interception order, receive image interception instruction first, may include in image interception instruction:Intercept
Image interception region and intended applications that video time point, user delimit, the broadcast interface in terminal starts
After playing video file, when reproduction time reaches intercepting video time point, can obtain with currently
Decoded video data corresponding with image interception region in the video file play, then cuts according to image
Order is taken to carry out file format coding to the decoded video data getting, such that it is able to generate from video
The video interception obtaining is intercepted in file.It is by obtaining the video literary composition play in the embodiment of the present invention
In part, decoded video data corresponding with image interception region, is then carried out to decoded video data again
File format coding mode obtain needs intercepting video interception, rather than by crawl video image
Obtain video interception, can obtain from the file format coding of decoded video data in the embodiment of the present invention
Video interception, very high to the intercepting process efficiency of video interception and also accurately, terminal response performance will not be subject to
Impact.
For ease of being better understood from and implementing the such scheme of the embodiment of the present invention, illustrate below and accordingly should
It is specifically described with scene.
So that user is using QQ browser viewing video as a example illustrated, user runs into the video liked and draws
Face, can select to intercept whole video pictures or partial video picture, make single picture or multiple
Picture, is saved in local or is shared with good friend.Refer to as shown in figure 3, being video figure in the present invention
The intercepting schematic flow sheet of picture.
S1, image interception region deviation post calculate
When video file is play on the display screen of terminal, can be that full screen is play, in Fig. 2
Shown in the A of region, can be non-full screen region, as shown in the region B in Fig. 2.It can also be region
Any one region of B to region A.No matter being in what region, user can be in video playback area
Mark a square region in domain, be used as wanting truncated picture to intercept region it is necessary first to calculate
Go out the deviation post that defined area is with respect to four angles of video playback area.
S2, the coordinate mapping of raw video image
Because region B to region C is uncertain, i.e. the size of video playback area and original video
Image is not of uniform size fixed equal, so after completing above-mentioned deviation post, needing to calculate this skew
Coordinate mapping relations in original video image for the position.
After the completion of S1 and S2, carry out the menu setecting of following P1, P2, P3, on the display screen of terminal
Need to provide a menu and allow user's selection, specifically, including following menu:
P1, purposes selects:Determine that the video interception that is truncated to is only history file or share after achieving.
P2, selection of configuration:Resolution, picture format, picture quality, file format, when intercepting video
Between point.
P3, model selection:Determine that needs intercept out single video interception or multiple video interception.
S3, the process of decoded video data
When user carries out the operation of S1 defined area, acquiescence is from current point in time start to process.Video playback
Process it is simply that video file is decoded as with the process that initial data shows again, usual initial data is
YUV420 form.Start synthetic video sectional drawing from initial data, decoding source file can be saved again
Link, can more save the processor resource of terminal it is also possible to save the electricity of terminal.
As shown in figure 4, being the handling process schematic diagram of decoded video data provided in an embodiment of the present invention,
Wherein, the description that this process specifically may include steps of:
Step m1, obtains the target resolution that user selects, target image form from image interception instruction
And objective image quality, destination file format, intercept video time point, the information such as picture number.
Step m2, the picture format encoding as needed, open encoder.
Step m3, according to file format, opens file synthesis device, and generates File header information, its Chinese
Part header can be sky.
Step m4, from the decoding link of currently playing process, obtains corresponding with intercepting video time point
Decoding video data.
Step m5, color conversion, that is, decoded video data adopt YUV color, can turn as needed
It is changed to rgb color.
Step m6, according to the information obtaining in m1 step, it is determined whether zooms in and out process, for example, uses
Family delimited visible image and intercepted region, image interception region current player scope is compared, obtains one
Proportionate relationship, combines original resolution with this proportionate relationship, is calculated a size, if this
Size is differed with target resolution, then need to zoom in and out process so that exporting the resolution of video interception
Rate meets the requirements.If do not needed, process need not be scaled.
Step m7, calls encoder, is that encoded video data carries out image pane according to target image form
The coding of formula.
Step m8, calls file synthesis device, and encoded video data is compiled according to destination file format
Code, generates video interception.
It should be noted that to the flow process of encoded video data process and broadcasting of video file in the present invention
Letting slip journey synchronous, if synthesizing multiple video interception, then repeating above procedure.
S4, the output of video interception
After video interception synthesizes, user can be pointed out success.According to the selection mode of P1, if achieving,
Third-party application can be called to open image folder.If sharing, then third-party application is called to carry out point
Enjoy, can be, but not limited to wechat, the mode such as QQ.
It should be noted that for aforesaid each method embodiment, in order to be briefly described, therefore by its all table
State as a series of combination of actions, but those skilled in the art should know, the present invention is not retouched
The restriction of the sequence of movement stated because according to the present invention, some steps can using other orders or
Carry out simultaneously.Secondly, those skilled in the art also should know, embodiment described in this description
Belong to preferred embodiment, necessary to involved action and the module not necessarily present invention.
For ease of the more preferable such scheme implementing the embodiment of the present invention, it is also provided below for implementing
State the relevant apparatus of scheme.
Refer to shown in Fig. 5-a, a kind of capture device 500 of video image provided in an embodiment of the present invention,
Can include:Receiver module 501, video data acquisition module 502, document No. module 503, video
Sectional drawing output module 504, wherein,
Receiver module 501, is instructed by the image interception that currently playing terminal sends for receive user, institute
State image interception instruction to include:Intercept video time point, described user broadcasts described currently playing terminal
Put the intended applications that the image interception region delimited in interface and described user select;
Video data acquisition module 502, regards with described intercepting for intercepting instruction acquisition according to described image
Decoded video data corresponding with image interception region in the video file that frequency time point is play;
Document No. module 503, for intercepting instruction to the decoded video number getting according to described image
According to carrying out file format coding, generate and intercept the video interception obtaining from described video file;
Video interception output module 504, for exporting described video segment according to described intended applications.
In some embodiments of the invention, refer to as shown in Fig. 5-b, described video data acquisition module
502, including:
Position calculation unit 5021, intercepts the broadcasting in region and currently playing terminal for calculating described image
Deviation post between interface;
Mapping relations determining unit 5022, for according to the described deviation post calculating, determining described figure
Reflect with the described coordinate intercepting the video image in the video file that video time point is play as intercepting region
Penetrate relation;
Video data reading unit 5023, for according to described coordinate mapping relations from currently playing terminal
Read in frame buffer and intercept region corresponding decoded video data with described image.
In some embodiments of the invention, if described image intercepts the target that instruction also includes user's selection
File format, described document No. module 503, for being regarded the decoding getting using file synthesis device
Frequency evidence is encoded to the video interception meeting described destination file format.
In some embodiments of the invention, refer to as shown in Fig. 5-c, if described image intercepts instruction also
The target resolution selecting including user, the capture device 500 of described video image also includes:Resolution
Coordination module 505, intercepts instruction to getting for described document No. module 503 according to described image
Decoded video data carries out file format coding, generates and intercepts the video obtaining from described video file
Before sectional drawing, video image in the corresponding video file of decoded video data getting described in judgement
Whether former resolution is identical with described target resolution;If described former resolution and described target resolution are not
Identical, to video image in the described corresponding video file of decoded video data getting resolution
Changed, obtained the decoded video data comprising to get described in described target resolution.
In some embodiments of the invention, if described image intercepts the target that instruction also includes user's selection
Resolution, the capture device of described video image, also include:Resolution Coordination module 505, for described
Document No. module intercepts instruction according to described image and carries out tray to the decoded video data getting
Formula encodes, and generates before intercepting, from described video file, the video interception obtaining, is reflected using described coordinate
Penetrate the former resolution of video image in relation and the described corresponding video file of decoded video data getting
Rate calculates resolution mapping value;Judge whether described resolution mapping value is identical with described target resolution;
If described resolution mapping value and described target resolution differ, to the described decoded video getting
In the corresponding video file of data, video image zooms in and out process, gets described in after being scaled
Decoded video data.
In some embodiments of the invention, refer to as shown in Fig. 5-d, if described image intercepts instruction also
The target video form selecting including user, the capture device 500 of described video image also includes:Image
Form Coordination module 506, intercepts instruction to acquisition for described document No. module 503 according to described image
To decoded video data carry out file format coding, generate to intercept from described video file and obtain
Before video interception, the former video of the corresponding video file of decoded video data getting described in acquisition
Form;The video format of the described corresponding video file of decoded video data getting is converted to mesh
Logo image form, obtains the decoded video data comprising to get described in described target image form.
In some embodiments of the invention, refer to as shown in Fig. 5-e, if described image intercepts instruction also
The objective video quality selecting including user, the capture device 500 of described video image also includes:Image
Quality coordination module 507, intercepts instruction to acquisition for described document No. module 503 according to described image
To decoded video data carry out file format coding, generate to intercept from described video file and obtain
Before video interception, the former video of the corresponding video file of decoded video data getting described in acquisition
Quality;The video quality of the described corresponding video file of decoded video data getting is adjusted to institute
State objective image quality, obtain the decoded video number comprising to get described in described objective image quality
According to.
In some embodiments of the invention, refer to as shown in Fig. 5-f, if described image intercepts instruction also
The intended applications selecting including user, the capture device 500 of described video image also includes:Image merges
Module 508, wherein,
Described video data acquisition module 502, is additionally operable to cut according to being truncated to video from described video file
The method of figure, intercepts instruction according to the multiple images that user sends and obtains respectively and in multiple intercepting video
Between put decoded video data corresponding with image interception region in the video file of broadcasting;
Described document No. module 503, is additionally operable to intercept instruction to the decoding getting according to multiple images
Video data carries out file format coding, is truncated to the video interception of multiple from described video file
Described image merge module 508, for by the described video interception of multiple according to intercept video time point
Sequencing synthesized, obtain the video segment intercepting out from described video file;
Described video interception output module 504, being additionally operable to will be defeated for described video segment according to described intended applications
Go out.
By the above description to the embodiment of the present invention, user sends image by currently playing terminal
When intercepting order, receive image interception instruction first, may include in image interception instruction:When intercepting video
Between the image interception region delimited of point, user and intended applications, the broadcast interface in terminal commences play out and regards
After frequency file, when reproduction time reaches intercepting video time point, can obtain and be currently played
Decoded video data corresponding with image interception region in video file, then according to image interception order
File format coding is carried out to the decoded video data getting, such that it is able to generate from video file
Intercept the video interception obtaining.In the embodiment of the present invention be by obtain in the video file play with
Image interception region corresponding decoded video data, then carries out tray to decoded video data again
The mode of formula coding obtains the video interception of needs intercepting, rather than is regarded by capturing video image
Frequency sectional drawing, can obtain video from the file format coding of decoded video data in the embodiment of the present invention and cut
Figure, very high to the intercepting process efficiency of video interception and also accurately, will not be affected by terminal response performance.
The embodiment of the present invention additionally provides another kind of terminal, as shown in fig. 6, for convenience of description, only shows
Go out the part related to the embodiment of the present invention, particular technique details does not disclose, refer to the present invention real
Apply a method part.This terminal can be including mobile phone, panel computer, PDA (Personal Digital
Assistant, personal digital assistant), POS (Point of Sales, point-of-sale terminal), vehicle-mounted computer etc. appoint
Meaning terminal unit, so that terminal is as mobile phone as a example:
Fig. 6 is illustrated that the block diagram of the part-structure of the mobile phone related to terminal provided in an embodiment of the present invention.
With reference to Fig. 6, mobile phone includes:Radio frequency (Radio Frequency, RF) circuit 610, memorizer 620,
Input block 630, display unit 640, sensor 650, voicefrequency circuit 660, Wireless Fidelity (wireless
Fidelity, WiFi) module 670, the part such as processor 680 and power supply 690.People in the art
Member, it is appreciated that the handset structure shown in Fig. 6 does not constitute the restriction to mobile phone, can include than figure
Show more or less of part, or combine some parts, or different part arrangements.
With reference to Fig. 6, each component parts of mobile phone are specifically introduced:
RF circuit 610 can be used for receiving and sending messages or communication process in, the reception of signal and transmission, especially,
After the downlink information of base station is received, process to processor 680;In addition, sending out designing up data
Give base station.Generally, RF circuit 610 includes but is not limited to antenna, at least one amplifier, transmitting-receiving letter
Machine, bonder, low-noise amplifier (Low Noise Amplifier, LNA), duplexer etc..Additionally,
RF circuit 610 can also be communicated with network and other equipment by radio communication.Above-mentioned radio communication is permissible
Using arbitrary communication standard or agreement, including but not limited to global system for mobile communications (Global System
Of Mobile communication, GSM), general packet radio service (General Packet Radio
Service, GPRS), CDMA (Code Division Multiple Access, CDMA), broadband
CDMA (Wideband Code Division Multiple Access, WCDMA), Long Term Evolution
(Long Term Evolution, LTE), Email, Short Message Service (Short Messaging Service,
SMS) etc..
Memorizer 620 can be used for storing software program and module, and processor 680 is stored in by operation
The software program of memorizer 620 and module, thus execute at various function application and the data of mobile phone
Reason.Memorizer 620 can mainly include storing program area and storage data field, and wherein, storing program area can
Application program needed for storage program area, at least one function (broadcast by such as sound-playing function, image
Playing function etc.) etc.;Storage data field can store according to mobile phone using data (the such as audio frequency being created
Data, phone directory etc.) etc..Additionally, memorizer 620 can include high-speed random access memory, also
Can include nonvolatile memory, for example, at least one disk memory, flush memory device or other
Volatile solid-state part.
Input block 630 can be used for numeral or the character information of receives input, and produces the use with mobile phone
The key signals input that family is arranged and function control is relevant.Specifically, input block 630 may include touch-control
Panel 631 and other input equipments 632.Contact panel 631, also referred to as touch screen, can collect user
Thereon or neighbouring touch operation (such as user uses any suitable object or attached such as finger, stylus
Part on contact panel 631 or the operation near contact panel 631), and according to formula set in advance
Drive corresponding attachment means.Optionally, contact panel 631 may include touch detecting apparatus and touches control
Two parts of device processed.Wherein, touch detecting apparatus detect the touch orientation of user, and detect touch operation
The signal bringing, transmits a signal to touch controller;Touch controller receives from touch detecting apparatus
Touch information, and it is converted into contact coordinate, then give processor 680, and can receiving processor 680
The order sent simultaneously is executed.Furthermore, it is possible to using resistance-type, condenser type, infrared ray and surface
The polytypes such as sound wave realize contact panel 631.Except contact panel 631, input block 630 is acceptable
Including other input equipments 632.Specifically, other input equipments 632 can include but is not limited to secondary or physical bond
In disk, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc.
One or more.
Display unit 640 can be used for showing by the information of user input or the information and the handss that are supplied to user
The various menus of machine.Display unit 640 may include display floater 641, optionally, can adopt liquid crystal
Show device (Liquid Crystal Display, LCD), Organic Light Emitting Diode (Organic Light-Emitting
Diode, OLED) etc. form configuring display floater 641.Further, contact panel 631 can cover
Display floater 641, when contact panel 631 detects thereon or after neighbouring touch operation, sends place to
Reason device 680, to determine the type of touch event, is showing according to the type of touch event with preprocessor 680
Show and corresponding visual output is provided on panel 641.Although in figure 6, contact panel 631 and display surface
Plate 641 is input and the input function to realize mobile phone as two independent parts, but in some realities
Apply in example, can contact panel 631 is integrated with display floater 641 and input and the output of realizing mobile phone
Function.
Mobile phone may also include at least one sensor 650, such as optical sensor, motion sensor and other
Sensor.Specifically, optical sensor may include ambient light sensor and proximity transducer, wherein, environment
Optical sensor can adjust the brightness of display floater 641 according to the light and shade of ambient light, and proximity transducer can
When mobile phone moves in one's ear, close display floater 641 and/or backlight.As one kind of motion sensor,
Accelerometer sensor can detect the size of (generally three axles) acceleration in all directions, can examine when static
Measure size and the direction of gravity, can be used for identifying application (such as horizontal/vertical screen switching, the phase of mobile phone attitude
Close game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.;Extremely
The gyroscope that can also configure in mobile phone, barometer, drimeter, thermometer, infrared ray sensor etc. other
Sensor, will not be described here.
Voicefrequency circuit 660, speaker 661, microphone 662 can provide the audio frequency between user and mobile phone to connect
Mouthful.The signal of telecommunication after the voice data receiving conversion can be transferred to speaker 661 by voicefrequency circuit 660,
Acoustical signal output is converted to by speaker 661;On the other hand, the sound collected is believed by microphone 662
Number be converted to the signal of telecommunication, after being received by voicefrequency circuit 660, be converted to voice data, then voice data is defeated
Go out after processor 680 processes, through RF circuit 610 being sent to such as another mobile phone, or by audio frequency number
According to output to memorizer 620 to process further.
WiFi belongs to short range wireless transmission technology, and mobile phone can help user to receive by WiFi module 670
Send e-mails, browse webpage and access streaming video etc., it has provided the user wireless broadband interconnection
Net accesses.Although Fig. 6 shows WiFi module 670, but it is understood that, it is simultaneously not belonging to handss
Must be configured into of machine, can omit completely as needed in the scope of essence not changing invention.
Processor 680 is the control centre of mobile phone, each using various interfaces and connection whole mobile phone
Individual part, by running or executing software program and/or the module being stored in memorizer 620, and adjusts
With being stored in the data in memorizer 620, the various functions of execution mobile phone and processing data, thus opponent
Machine carries out integral monitoring.Optionally, processor 680 may include one or more processing units;Preferably,
Processor 680 can integrated application processor and modem processor, wherein, application processor is mainly located
Reason operating system, user interface and application program etc., modem processor mainly processes radio communication.
It is understood that above-mentioned modem processor can not also be integrated in processor 680.
Mobile phone also includes the power supply 690 (such as battery) powered to all parts it is preferred that power supply is permissible
Logically contiguous with processor 680 by power-supply management system, thus management is realized by power-supply management system
The functions such as charging, electric discharge and power managed.
Although not shown, mobile phone can also include photographic head, bluetooth module etc., will not be described here.
In embodiments of the present invention, the processor 680 included by this terminal also have control execution above by
The intercept method flow process of the video image of terminal execution.
In addition it should be noted that, device embodiment described above is only schematically, wherein said
The unit illustrating as separating component can be or may not be physically separate, show as unit
The part showing can be or may not be physical location, you can with positioned at a place, or also may be used
To be distributed on multiple NEs.Some or all of mould therein can be selected according to the actual needs
Block is realizing the purpose of this embodiment scheme.In addition, in the device embodiment accompanying drawing of present invention offer, mould
Annexation between block represents there is communication connection between them, specifically can be implemented as one or more
Communication bus or holding wire.Those of ordinary skill in the art in the case of not paying creative work, that is,
It is appreciated that and implement.
Through the above description of the embodiments, those skilled in the art can be understood that this
Invention can be realized by the mode of software plus necessary common hardware naturally it is also possible to pass through specialized hardware
To realize including special IC, dedicated cpu, private memory, special components and parts etc..General feelings
Under condition, all functions of being completed by computer program can easily be realized with corresponding hardware, and
And, the particular hardware structure for realizing same function can also be diversified, such as analog circuit,
Digital circuit or special circuit etc..But, more for the purpose of the present invention in the case of software program realize be more
Good embodiment.Based on such understanding, technical scheme is substantially in other words to existing skill
What art contributed partly can be embodied in the form of software product, and this computer software product stores
In the storage medium that can read, the floppy disk of such as computer, USB flash disk, portable hard drive, read only memory (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic
Dish or CD etc., including some instructions with so that computer equipment (can be personal computer,
Server, or the network equipment etc.) method described in execution each embodiment of the present invention.
In sum, above example, only in order to technical scheme to be described, is not intended to limit;
Although being described in detail to the present invention with reference to above-described embodiment, those of ordinary skill in the art should
Work as understanding:It still can be modified to the technical scheme described in the various embodiments described above, or to it
Middle some technical characteristics carry out equivalent;And these modifications or replacement, do not make appropriate technical solution
Essence depart from various embodiments of the present invention technical scheme spirit and scope.
Claims (16)
1. a kind of intercept method of video image is it is characterised in that include:
Receive user is instructed by the image interception that currently playing terminal sends, and described image intercepts instruction bag
Include:The figure that intercepting video time point, described user delimit in the broadcast interface of described currently playing terminal
As intercepting the intended applications in region and described user selection;
Intercept instruction according to described image to obtain and in the video file that described intercepting video time point is play
Decoded video data corresponding with image interception region;
Instruction is intercepted according to described image file format coding is carried out to the decoded video data getting,
Generate and intercept the video interception obtaining from described video file;
According to described intended applications, described video segment is exported.
2. method according to claim 1 is it is characterised in that described intercepting according to described image refers to
Order acquisition is corresponding with image interception region with the described video file intercepting the broadcasting of video time point
Decoding video data, including:
Calculate described image and intercept the deviation post between region and the broadcast interface of currently playing terminal;
According to the described deviation post calculating, determine that described image intercepts region and in described intercepting video
The coordinate mapping relations of the video image in the video file that time point is play;
Read from the frame buffer of currently playing terminal according to described coordinate mapping relations and cut with described image
Take region corresponding decoded video data.
If 3. method according to claim 1 is it is characterised in that described image intercepting instruction is also wrapped
Include the destination file format of user's selection, described intercepting according to described image instructs to the decoding getting
Video data carries out file format coding, generates and intercepts, from described video file, the video interception obtaining,
Including:
Using file synthesis device by the decoded video getting data encoding for meeting described file destination lattice
The video interception of formula.
If 4. according to the method in any one of claims 1 to 3 it is characterised in that described image
Intercept the target resolution that instruction also includes user's selection, described intercepting according to described image instructs to acquisition
To decoded video data carry out file format coding, generate to intercept from described video file and obtain
Before video interception, methods described also includes:
The former resolution of video image in the corresponding video file of decoded video data getting described in judgement
Whether rate is identical with described target resolution;
If described former resolution and described target resolution differ, to the described decoded video getting
In the corresponding video file of data, the resolution of video image is changed, and obtains comprising described target resolution
The decoded video data getting described in rate.
If 5. method according to claim 2 is it is characterised in that described image intercepting instruction is also wrapped
Include the target resolution of user's selection, described instruction according to described image intercepting regards to the decoding getting
Frequency, according to carrying out file format coding, generates before intercepting, from described video file, the video interception obtaining,
Methods described also includes:
Using described coordinate mapping relations and the described corresponding video file of decoded video data getting
The former resolution of middle video image calculates resolution mapping value;
Judge whether described resolution mapping value is identical with described target resolution;
If described resolution mapping value and described target resolution differ, to the described decoding getting
In the corresponding video file of video data, video image zooms in and out process, the described acquisition after being scaled
The decoded video data arriving.
If 6. according to the method in any one of claims 1 to 3 it is characterised in that described image
Intercept the target image form that instruction also includes user's selection, described instruction is intercepted to obtaining according to described image
The decoded video data got carries out file format coding, and generation intercepts from described video file and obtains
Video interception before, methods described also includes:
The former video format of the corresponding video file of decoded video data getting described in acquisition;
The video format of the described corresponding video file of decoded video data getting is converted to target
Picture format, obtains the decoded video data comprising to get described in described target image form.
If 7. according to the method in any one of claims 1 to 3 it is characterised in that described image
Intercept the objective image quality that instruction also includes user's selection, described instruction is intercepted to obtaining according to described image
The decoded video data got carries out file format coding, and generation intercepts from described video file and obtains
Video interception before, methods described also includes:
The former video quality of the corresponding video file of decoded video data getting described in acquisition;
The video quality of the described corresponding video file of decoded video data getting is adjusted to described
Objective image quality, obtains the decoded video data comprising to get described in described objective image quality.
8. method according to claim 1 is it is characterised in that described intercepting according to described image refers to
Order carries out file format coding to the decoded video data getting, and generates and cuts from described video file
After the video interception obtaining, methods described also includes:
Method according to being truncated to video interception from described video file, the multiple figures being sent according to user
As intercept instruction respectively obtain with multiple intercept video time points play video files in image interception
Region corresponding decoded video data, intercepts instruction to the decoded video getting according to multiple images
Data carries out file format coding, is truncated to the video interception of multiple from described video file;
The described video interception of multiple is synthesized according to the sequencing intercepting video time point, is obtained
The video segment intercepting out from described video file;
According to described intended applications, described video segment is exported.
9. a kind of capture device of video image is it is characterised in that include:
Receiver module, is instructed by the image interception that currently playing terminal sends for receive user, described
Image interception instruction includes:Intercept video time point, described user described currently playing terminal broadcasting
The image interception region delimited in interface and the intended applications of described user selection;
Video data acquisition module, obtains and in described intercepting video for intercepting instruction according to described image
Decoded video data corresponding with image interception region in the video file that time point is play;
Document No. module, for intercepting instruction to the decoded video data getting according to described image
Carry out file format coding, generate and intercept the video interception obtaining from described video file;
Video interception output module, for exporting described video segment according to described intended applications.
10. device according to claim 9 is it is characterised in that described video data acquisition module,
Including:
Position calculation unit, intercepts the broadcast interface in region and currently playing terminal for calculating described image
Between deviation post;
Mapping relations determining unit, for according to the described deviation post calculating, determining that described image is cut
Region is taken to close with the described coordinate mapping intercepting the video image in the video file that video time point is play
System;
Video data reading unit, for delaying from the frame of currently playing terminal according to described coordinate mapping relations
Read in depositing and intercept region corresponding decoded video data with described image.
If 11. devices according to claim 9 are it is characterised in that described image intercepts instruction also
The destination file format selecting including user, described document No. module, for being incited somebody to action using file synthesis device
The decoded video data encoding getting is the video interception meeting described destination file format.
12. if devices according to any one of claim 9 to 11 are it is characterised in that described figure
Also include the target resolution of user's selection as intercepting instruction, described device also includes:Resolution coordinates mould
Block, intercepts instruction to the decoded video number getting for described document No. module according to described image
According to carrying out file format coding, generate before intercepting, from described video file, the video interception obtaining, sentence
The former resolution of video image and institute in the corresponding video file of decoded video data getting described in disconnected
Whether identical state target resolution;If described former resolution and described target resolution differ, to described
In the corresponding video file of decoded video data getting, the resolution of video image is changed, and obtains
To comprising the decoded video data that gets described in described target resolution.
If 13. devices according to claim 11 are it is characterised in that described image intercepts instruction also
The target resolution selecting including user, described device also includes:Resolution Coordination module, for described
Document No. module intercepts instruction according to described image and carries out tray to the decoded video data getting
Formula encodes, and generates before intercepting, from described video file, the video interception obtaining, is reflected using described coordinate
Penetrate the former resolution of video image in relation and the described corresponding video file of decoded video data getting
Rate calculates resolution mapping value;Judge whether described resolution mapping value is identical with described target resolution;
If described resolution mapping value and described target resolution differ, to the described decoded video getting
In the corresponding video file of data, video image zooms in and out process, gets described in after being scaled
Decoded video data.
14. if devices according to any one of claim 9 to 11 are it is characterised in that described figure
Also include the target image form of user's selection as intercepting instruction, described device also includes:Picture format is assisted
Mode transfer block, intercepts instruction for described document No. module according to described image and the decoding getting is regarded
Frequency, according to carrying out file format coding, generates before intercepting, from described video file, the video interception obtaining,
The former video format of the corresponding video file of decoded video data getting described in acquisition;Obtain described
The video format of the corresponding video file of decoded video data got is converted to target image form, obtains
To comprising the decoded video data that gets described in described target image form.
15. if devices according to any one of claim 9 to 11 are it is characterised in that described figure
Also include the objective image quality of user's selection as intercepting instruction, described device also includes:Picture quality is assisted
Mode transfer block, intercepts instruction for described document No. module according to described image and the decoding getting is regarded
Frequency, according to carrying out file format coding, generates before intercepting, from described video file, the video interception obtaining,
The former video quality of the corresponding video file of decoded video data getting described in acquisition;Obtain described
The video quality of the corresponding video file of decoded video data got is adjusted to described target image matter
Amount, obtains the decoded video data comprising to get described in described objective image quality.
16. devices according to claim 9 are it is characterised in that described device also includes:Image
Merge module, wherein,
Described video data acquisition module, is additionally operable to be truncated to video interception according to from described video file
Method, according to user send multiple images intercept instruction respectively obtain with multiple intercepting video times
Decoded video data corresponding with image interception region in the video file that point is play;
Described document No. module, is additionally operable to intercept to instruct according to multiple images the decoding getting is regarded
Frequency, according to carrying out file format coding, is truncated to the video interception of multiple from described video file
Described image merges module, for by the described video interception of multiple according to intercepting video time point
Sequencing is synthesized, and obtains the video segment intercepting out from described video file;
Described video interception output module, is additionally operable to be exported described video segment according to described intended applications.
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PCT/CN2016/085994 WO2017016339A1 (en) | 2015-07-27 | 2016-06-16 | Video sharing method and device, and video playing method and device |
MYPI2017704144A MY190923A (en) | 2015-07-27 | 2016-06-16 | Video sharing method and device, and video playing method and device |
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