CN103414863A - Method and device for processing video - Google Patents

Method and device for processing video Download PDF

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Publication number
CN103414863A
CN103414863A CN2013103421898A CN201310342189A CN103414863A CN 103414863 A CN103414863 A CN 103414863A CN 2013103421898 A CN2013103421898 A CN 2013103421898A CN 201310342189 A CN201310342189 A CN 201310342189A CN 103414863 A CN103414863 A CN 103414863A
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China
Prior art keywords
image
grabgraf
instruction
current
picture
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Pending
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CN2013103421898A
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Chinese (zh)
Inventor
吴鹏
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TVMining Beijing Media Technology Co Ltd
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TVMining Beijing Media Technology Co Ltd
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Priority to CN2013103421898A priority Critical patent/CN103414863A/en
Publication of CN103414863A publication Critical patent/CN103414863A/en
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Abstract

An embodiment of the invention provides a method for processing a video. The method can achieve the purpose that a one-frame image in the playing process is converted to a picture. The method for processing the video comprises the following steps that a screenshot order is received in the process that a live video stream is played; the current one-frame image and relevant imagines are captured according to the received screenshot order; the current one-frame image and the relevant imagines are rendered so that picture data indicated by the screenshot order can be obtained. The invention further discloses a device for achieving the method for processing the video.

Description

A kind of processing method of video and device
Technical field
The present invention relates to technical field of video processing, be specifically related to a kind of processing method and device that video image is converted to picture.
Background technology
The play-back technology of video and the application of the browser technology of picture are very extensive, but video is different from the file format of picture, as video file, often save as mp4(Media Play4, the 4th generation media player) form, picture often saves as jpeg(Joint Photographic Experts Group, JPEG (joint photographic experts group)) form.In playing process, jpeg is by 2D(2Dimension, 2 tie up) or 3D(3Dimension, 3 dimensions) the figure playback engine is responsible for showing, the mp4 file is by DSP(Digital Signal Processing, Digital Signal Processing) transfer to again video output unit of bottom after processor decodes and from a core buffer that comprises complete frame data, drive a video and show.
At present, in the application of multimedia video technique, due to the difference of file format, the net cast stream in playing process can't be converted to picture immediately.Common way is that the video image in playing is carried out to sectional drawing, to obtain corresponding picture.But this kind way not only can have influence on the quality that intercepts picture, also to use, makes troubles.
Summary of the invention
The embodiment of the present invention provides a kind of processing method and device of video, and the two field picture in can realizing playing is converted to picture.
In order to achieve the above object, the embodiment of the present invention proposes a kind of processing method of video, comprises the following steps:
In the playing process of live video stream, receive the grabgraf instruction;
According to the grabgraf instruction of receiving, capture a current two field picture and relevant image;
A current two field picture and relevant image are played up, obtained the indicated image data of grabgraf instruction.
The present embodiment operates by the video flowing to live, and a two field picture is converted to picture, and video playback is not suspended in this process, can play continuously.
Preferably, the grabgraf instruction comprises that the user clicks touch-screen or slide and the instruction that produces, and wherein, slide finger touch screen moment is current point in time.Mode of operation to touch-screen is various, handled easily.
Preferably, according to the grabgraf instruction of receiving, before capturing a current two field picture and relevant image, described method also comprises: whether the time of the grabgraf instruction that judgement receives is after live video stream is play a second; When being when live video stream is play after the second, according to the grabgraf instruction of receiving, captures a current two field picture and the step of the image of being correlated with comprises: according to the grabgraf instruction of receiving, capture the image in a current two field picture and current point in time last second.This technical scheme is after live video stream is play a second, and the grabgraf module captures the image in a current two field picture and current point in time last second.
Preferably, when not when live video stream is play after the second, according to the grabgraf instruction of receiving, the step that captures a current two field picture and relevant image comprises: according to the grabgraf instruction of receiving, capture the image in a second after a current two field picture and current point in time.This technical scheme is to play and also do not broadcast foot during one second at live video stream, and less than will wait a sufficient second during one second, the image in a second after the two field picture that the crawl of grabgraf module is current and current point in time.
Preferably, a current two field picture and relevant image are played up, obtained image data, comprising: the image transitions that will grab is standard picture, obtain the image of last frame in standard picture, the image of this last frame is the indicated image data of grabgraf instruction.The image that obtains last frame in standard picture is a kind of preferably scheme, can accurately obtain the indicated image data of grabgraf instruction.
Preferably, a current two field picture and relevant image are played up, obtained image data, comprising: the image transitions that will grab is standard picture, obtain the image of the first frame in standard picture, the image of this first frame is the indicated image data of grabgraf instruction.The image that obtains the first frame in standard picture is a kind of preferably scheme, can accurately obtain the indicated image data of grabgraf instruction.
A kind of device of Video processing comprises:
Receiver module, receive the grabgraf instruction for the playing process at live video stream;
The grabgraf module, for the grabgraf instruction according to receiving, capture a current two field picture and relevant image;
Rendering module, play up for the two field picture by current and relevant image, obtains the indicated image data of grabgraf instruction.
Preferably, the grabgraf instruction comprises that the user clicks touch-screen or slide and the instruction that produces, and wherein, slide finger touch screen moment is current point in time.
Preferably, video process apparatus also comprises: judge module, and whether the time of the grabgraf instruction that judgement receives is after live video stream is play a second;
The time of the grabgraf instruction that the grabgraf module receives is when live video stream is play after the second, according to the grabgraf instruction of receiving, captures the image in a current two field picture and current point in time last second
Preferably, video process apparatus also comprises: judge module, and whether the time of the grabgraf instruction that judgement receives is after live video stream is play a second;
The time of the grabgraf instruction that the grabgraf module receives is not when live video stream is play after the second, according to the grabgraf instruction of receiving, captures the image in a second after a current two field picture and current point in time.
Preferably, the image transitions that rendering module will grab is standard picture, obtains the image of last frame in standard picture, and the image of this last frame is the indicated image data of grabgraf instruction.
Preferably, the image transitions that rendering module will grab is standard picture, obtains the image of the first frame in standard picture, and the image of this first frame is the indicated image data of grabgraf instruction
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, becoming apparent, or understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification writing, claims and accompanying drawing.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
The accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms the part of specification, be used to explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is that in the embodiment of the present invention, live video stream is converted to the picture flow chart;
Fig. 2 is the first particular flow sheet that in the embodiment of the present invention, live video stream is converted to picture;
Fig. 3 is the second particular flow sheet that in the embodiment of the present invention, live video stream is converted to picture;
Fig. 4 is video process apparatus schematic diagram in the embodiment of the present invention;
Fig. 5 is the concrete schematic diagram of video process apparatus in the embodiment of the present invention.
Embodiment
The live video stream that is illustrated in figure 1 embodiment of the present invention proposition is converted to the picture flow chart, comprises the following steps:
Step S101: receive the grabgraf instruction in the playing process of live video stream; The form of live video stream is generally M3U8(motion3unit8, a kind of form of live video stream);
Step S102: according to the grabgraf instruction of receiving, capture a current two field picture and relevant image;
Step S103: a current two field picture and relevant view data are played up, obtained the indicated image data of grabgraf instruction.
Because the image of live video stream can not directly be used as picture, so the present embodiment is played up a current frame image data with the view data relevant to this two field picture, obtain the image data of applicable picture format.Preferred render process comprises: the standard image format that the view data of crawl is converted to 1 second 24 frame.Wherein every two field picture of standard image format can, as picture, from the view data of standard image format, taking out the view data of a frame, namely obtain the indicated image data of grabgraf instruction according to the grabgraf instruction.
Generally, the associated picture of crawl is for the image in first 1 second of last two field picture, in order to be converted into the standard image format of 1 second 24 frame.If, less than just receiving the grabgraf instruction 1 second, need so by the time to have obtained view data in 1 second after last two field picture, then play up at displaying video stream, now relevant image is image in 1 second after last two field picture.
The present invention is in the live video stream playing process, and by touch-screen being clicked or slide produces instruction, the two field picture during by operation is converted to picture, and picture is sent to the second screen.In image transitions, be in the process of picture, video can be play continuously, can not have influence on the effect of watching video.In addition, the technical program can also be applied in the fields such as micro-letter.
Below by two exemplary embodiments, be elaborated.Be illustrated in figure 2 the first particular flow sheet that live video stream in the embodiment of the present invention is converted to picture, comprise the following steps:
Step S201: video playback apparatus receives the grabgraf instruction in the live video stream playing process;
Described grabgraf instruction comprises that the user clicks touch-screen or slide and the instruction that produces, and wherein, described slide touch screen moment is current point in time;
Step S202: whether the time of the grabgraf instruction that the video playback apparatus judgement receives is after live video stream is play a second, if, after live video stream is play a second (while containing a second), continue step S203;
Step S203: video playback apparatus obtains current point in time automatically to the current point in time image in last second; Wherein, so long as whole number of seconds certificate gets final product, the video data that adopts a second here is a kind of preferably scheme, both can meet the needs of video conversion, can also guarantee that data processing amount is less;
Step S204: video playback apparatus is converted to the video data of acquisition the video data of 1 second 24 frame format of standard;
Step S205: obtain the image of last frame in standard picture, the image of this last frame is the indicated picture of grabgraf instruction.Can further this picture be preserved, send to miscellaneous equipment etc.
For example, the touch-screen of live video stream is clicked or slide, the grabgraf time point is the 18th second, and the video flowing in last second can being play is converted to the picture format file.At video frame images, be converted in the picture process, video can be play continuously.
Be illustrated in figure 3 the second particular flow sheet that live video stream in the embodiment of the present invention is converted to picture, comprise the following steps:
Step S301: receive the grabgraf instruction in the live video stream playing process;
Described grabgraf instruction is that the user clicks or slide touch-screen, and wherein, described slide finger touch screen moment is current point in time;
Step S302: whether the time of the grabgraf instruction that the video playback apparatus judgement receives is the second after live video stream is play, a second after playing if not live video stream, be that a sufficient second is not also broadcast in the live video stream broadcasting, continue step S303;
Step S303: video playback apparatus obtains the image of current point in time to a second after current point in time automatically; Wherein, so long as whole number of seconds certificate gets final product, the video data that adopts a second here is a kind of preferably scheme, both can meet the needs of video conversion, can also guarantee that data processing amount is less.In addition, video playback apparatus need to wait until the download image in a second after current point in time and decode and just can obtain afterwards, or after the wait current point in time, the image player in a second is complete just can obtain afterwards;
Step S304: video playback apparatus is converted to the video data of acquisition the video data of 1 second 24 frame format of standard;
Step S305: obtain the video data of the first frame in the normal video data, the video data of this first frame is the indicated picture of grabgraf instruction.Can further this picture be preserved, send to miscellaneous equipment etc.For example, the touch-screen of live video stream is clicked or slide, the grabgraf time point is the 18th second, and the video flowing in latter a second can being play is converted to the picture format file.At video frame images, be converted in the picture process, video can be play continuously.
By above description, understood video processing procedure, this process can be realized by device, below internal structure and the function of this device is introduced.
Be illustrated in figure 4 the video process apparatus schematic diagram that the embodiment of the present invention proposes, this device comprises: receiver module 401, grabgraf module 402 and rendering module 403.
Receiver module 401, receive the grabgraf instruction for the playing process at live video stream;
Preferably, the grabgraf instruction comprises that the user clicks touch-screen or slide and the instruction that produces, and wherein, slide finger touch screen moment is current point in time.
Grabgraf module 402, for the grabgraf instruction according to receiving, capture a current two field picture and relevant image;
Rendering module 403, play up for the two field picture by current and relevant image, obtains the indicated image data of grabgraf instruction.
The video process apparatus that is illustrated in figure 5 embodiment of the present invention proposition specifically also comprises: judge module 404.
Preferably, video process apparatus also comprises: judge module 404, and whether the time of the grabgraf instruction that judgement receives is after live video stream is play a second;
The time of the grabgraf instruction that grabgraf module 402 receives is when live video stream is play after the second, according to the grabgraf instruction of receiving, captures the image in a current two field picture and current point in time last second.
Preferably, video process apparatus also comprises: judge module 404, and whether the time of the grabgraf instruction that judgement receives is after live video stream is play a second;
The time of the grabgraf instruction that grabgraf module 402 receives is not when live video stream is play after the second, according to the grabgraf instruction of receiving, captures the image in a second after a current two field picture and current point in time.
Preferably, the image transitions that rendering module 403 will grab is standard picture, obtains the image of last frame in standard picture, and the image of this last frame is the indicated image data of grabgraf instruction.
Preferably, the image transitions that rendering module 403 will grab is standard picture, obtains the image of the first frame in standard picture, and the image of this first frame is the indicated image data of grabgraf instruction
The present invention is in the process of displaying video, and touch-screen is operated, and the two field picture during by operation is converted to picture, and sends to the second screen, and video does not suspend simultaneously, and plays continuously.The present invention has guaranteed that by image transitions be in the picture process, the continuity of video playback.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect fully.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code one or more.
The present invention describes with reference to flow chart and/or the block diagram of method, equipment (system) and computer program according to the embodiment of the present invention.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction be stored in this computer-readable memory produce the manufacture that comprises command device, this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step to produce computer implemented processing, thereby in the instruction of carrying out on computer or other programmable devices, be provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.

Claims (12)

1. the processing method of a video, is characterized in that, comprises the following steps:
In the playing process of live video stream, receive the grabgraf instruction;
According to the grabgraf instruction of receiving, capture a current two field picture and relevant image;
A current two field picture and relevant image are played up, obtained the indicated image data of grabgraf instruction.
2. the method for claim 1, is characterized in that, described grabgraf instruction comprises that the user clicks touch-screen or slide and the instruction that produces, and wherein, slide finger touch screen moment is current point in time.
3. method according to claim 1, is characterized in that, according to the grabgraf instruction of receiving, before capturing a current two field picture and relevant image, described method also comprises step:
Whether the time of the grabgraf instruction that judgement receives is after live video stream is play a second;
When being when live video stream is play after the second, according to the grabgraf instruction of receiving, captures a current two field picture and the step of the image of being correlated with comprises: according to the grabgraf instruction of receiving, capture the image in a current two field picture and current point in time last second.
4. method according to claim 3, it is characterized in that, when being not when live video stream is play after the second, according to the grabgraf instruction of receiving, the step that captures a current two field picture and relevant image comprises: according to the grabgraf instruction of receiving, capture the image in a second after a current two field picture and current point in time.
5. method according to claim 3, it is characterized in that, a current two field picture and relevant image are played up, obtain image data, comprise: the image transitions that will grab is standard picture, obtain the image of last frame in standard picture, the image of this last frame is the indicated image data of grabgraf instruction.
6. method according to claim 4, it is characterized in that, a current two field picture and relevant image are played up, obtain image data, comprise: the image transitions that will grab is standard picture, obtain the image of the first frame in standard picture, the image of this first frame is the indicated image data of grabgraf instruction.
7. the device of a Video processing, is characterized in that, comprising:
Receiver module, receive the grabgraf instruction for the playing process at live video stream;
The grabgraf module, for the grabgraf instruction according to receiving, capture a current two field picture and relevant image;
Rendering module, play up for the two field picture by current and relevant image, obtains the indicated image data of grabgraf instruction.
8. device according to claim 7, is characterized in that, the grabgraf instruction comprises that the user clicks touch-screen or slide and the instruction that produces, and wherein, slide finger touch screen moment is current point in time.
9. device according to claim 7, is characterized in that, described device also comprises: judge module, and whether the time of the grabgraf instruction that judgement receives is after live video stream is play a second;
The grabgraf module is when live video stream is play after the second in the time of the grabgraf instruction received, and according to the grabgraf instruction of receiving, captures the image in a current two field picture and current point in time last second.
10. device according to claim 7, is characterized in that, described device also comprises: judge module, and whether the time of the grabgraf instruction that judgement receives is after live video stream is play a second;
The grabgraf module is not when live video stream is play after the second in the time of the grabgraf instruction received, and according to the grabgraf instruction of receiving, captures the image in a second after a current two field picture and current point in time.
11. device according to claim 9, is characterized in that, the image transitions that described rendering module will grab is standard picture, obtains the image of last frame in standard picture, and the image of this last frame is the indicated image data of grabgraf instruction.
12. device according to claim 10, is characterized in that, the image transitions that described rendering module will grab is standard picture, obtains the image of the first frame in standard picture, and the image of this first frame is the indicated image data of grabgraf instruction.
CN2013103421898A 2013-08-07 2013-08-07 Method and device for processing video Pending CN103414863A (en)

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Application publication date: 20131127