CN102724471A - Picture and video converting method and device - Google Patents
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Abstract
The invention is applied to the technical field of communication and provides a picture and video converting method. The method comprises the following steps of setting picture-video conversion parameters, and processing pictures according to the picture-video conversion parameters so that the size of all the pictures is the same; acquiring digital picture signal data represented by brightness and chromaticity space of the pictures; converting the digital picture signal data represented by brightness and chromaticity space into video code stream data; and converting the video code stream data into a video format file. The invention also correspondingly provides a picture and video converting device. By the method and the device, the format conversion from a picture set to a video can be conveniently finished, the storage capacity is reduced, and the dynamic feeling experience of a user is enhanced.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the conversion method and the device of a kind of picture and video.
Background technology
At present, digital camera and possessing in the smart mobile phone equipment of multimedia function, atlas and multimedia video separate with separate.Both save as the different files form respectively, often save as the jpeg form like picture, and the video file of recording often saves as mp4 (3gp) form, between the two can not conversion mutually on terminal equipment.Jpeg is responsible for demonstration by 2D or 3D figure playback engine when playing, and the mp4 file is transferred to bottom framebuffer again after by DSP (Digital Signal Processing, Digital Signal Processing) processor decodes and shown structure as shown in Figure 1.
In smart mobile phone or digital camera; Because picture is too much; And picture file name (like the photo of camera) majority is with current time name, and the user browses and manages can be very loaded down with trivial details, and it is complicated to carry out operations such as inquiry, rename, deletion, transfer, packing; As all picture renames are needed could accomplish each file repetitive operation successively, other operate also need be from a large amount of tabulations the picture of screening needs repeatedly.Picture too much causes medium scanning can consume great amount of time, can slow down along with picture increases the speed that gets into atlas, and the user wants to retrieve the picture that needs also can consume the long time, can reduce user experience like this.Because the catalogue of picture-storage is too scattered, can not effectively classify, the correlation between the picture is not strong, if the picture that is associated do not deposit continuously according to certain rules, just very inconvenient when the user wants to browse the picture that is associated.The user can only many pieces ofly browse when browsing pictures, can't be linked to be an integral body to all pictures that is associated and browse.In the practical application, generally about 20 times, about 2M, the such picture of a thousand sheets just need take the memory space of 2G to the compression ratio of Jpeg picture after the picture compression of a high-resolution; Generally about 100 times, the HD video of an about 720p of two hours only needs the space of 1G to the compression ratio of video.This shows that the picture form can take too much memory space, user's picture of having in time shift like this is to guarantee enough memory spaces.
Can know that to sum up the switch technology of existing photo and video obviously exists inconvenience and defective, so be necessary to improve on reality is used.
Summary of the invention
To above-mentioned defective, the object of the present invention is to provide the conversion method and the device of a kind of picture and video, can accomplish the mutual conversion of pictures and video easily, strengthen user experience.
To achieve these goals, the present invention provides the conversion method of a kind of picture and video, and said method comprises:
Picture-video conversion parameter is set, handles picture, make all picture size identical according to said picture-video conversion parameter;
Obtain the data image signal data of representing by brightness and chrominance space of said picture;
With the said data image signal data transaction of being represented by brightness and chrominance space is video codeword data stream;
Convert said video codeword data stream to the video format file.
According to the conversion method of picture of the present invention and video, the said step that picture-video conversion parameter is set also comprises before:
Obtain the parameter information of picture, be specially: the resolution information of resolving picture file generates the pictorial information chained list, comprises picture file name and resolution information in the said pictorial information chained list;
According to the parameter information of said picture, picture-video conversion parameter is set automatically.
According to the conversion method of picture of the present invention and video, the said data image signal data step of being represented by brightness and chrominance space of obtaining said picture comprises:
Read the jpeg data of every said picture;
The said jpeg data of decoding obtains the data image signal data represented by brightness and chrominance space.
According to the conversion method of picture of the present invention and video, said video codeword data stream is the H264 bit stream data.
According to the conversion method of picture of the present invention and video, saidly convert said video codeword data stream to video format file step and comprise:
Convert said H264 bit stream data into the mp4 broadcast format.
The present invention also provides the conversion method of other a kind of picture and video, and said method comprises:
Obtain the parameter of video file;
Read the data of said each frame of video file;
According to said frame data, obtain the data image signal data of representing by brightness and chrominance space;
With the said data image signal data transaction of being represented by brightness and chrominance space is image data;
Convert said image data to the picture format file.
According to the conversion method of picture of the present invention and video, said frame data are the H264 bit stream data.
According to the conversion method of picture of the present invention and video, said according to said frame data, obtain the data image signal data step of representing by brightness and chrominance space and comprise:
The decoding of said H264 bit stream data obtained the data image signal data represented by brightness and chrominance space.
According to the conversion method of picture of the present invention and video, said image data is a jpeg data, and said picture format is a jpeg format.
The present invention also provides the conversion equipment of a kind of picture and video, comprising:
The information acquisition module is used to obtain the parameter of pictorial information, and/or obtains the parameter of video file, and reads the data of said each frame of video file;
The parameter processing module is used to be provided with picture-video conversion parameter, handles picture according to said picture-video conversion parameter, makes all picture size identical;
The first coding/decoding module is used to obtain the data image signal data of being represented by brightness and chrominance space of said picture, and/or is image data with the data image signal data transaction of being represented by brightness and chrominance space of said picture;
The second coding/decoding module is a video codeword data stream with the said data image signal data transaction of being represented by brightness and chrominance space, and/or according to said frame data, obtains the data image signal data of being represented by brightness and chrominance space;
The form package module is used to be provided with the broadcast format of said video codeword data stream, and/or the form of said image data is set.
The present invention is through being provided with picture-video conversion parameter; And according to picture-video conversion parameter processing picture; Make all picture size identical,, obtain the data image signal data of representing by brightness and chrominance space of picture then according to pictorial information; Convert above signal data into video codeword data stream again, but through converting the video of broadcast format behind the formatting into.Preferably, picture adopts the JPEG picture, and video format is the MP4 form, can reduce taking up room of picture whereby, improves user's innervation experiencing.
Description of drawings
Fig. 1 is the picture display system sketch map of prior art;
Fig. 2 is the structural representation of the conversion equipment of picture of the present invention and video;
Fig. 3 is the picture of one embodiment of the invention and the flow chart of video conversion method;
Fig. 4 is the picture of another embodiment of the present invention and the flow chart of video conversion method.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Referring to Fig. 2, the invention provides the conversion equipment of a kind of picture and video, this conversion equipment 100 can be realized the mutual conversion between picture and video, it can be digital camera, have the intelligent terminal of multimedia function.Concrete, this device 100 comprises:
The first coding/decoding module 30 is used to obtain the data image signal data of being represented by brightness and chrominance space of said picture, and/or is image data with the data image signal data transaction of being represented by brightness and chrominance space of said picture.These first coding/decoding module, 30 preferred DSP JPEG coder/decoders that adopt; At picture in the transfer process of video; The first coding/decoding module 30 at first reads the jpeg data of every pictures; The said jpeg data of decoding then obtains the data image signal data represented by brightness and chrominance space, transfers to the second coding/decoding module 40 then and handles.If conversion equipment 100 is in video is converted in the process of picture; The first coding/decoding module 30 data image signal data of representing by brightness and chrominance space that receive that the second coding/decoding module 40 sends then; And be converted into the JPEG image data, transfer to the picture format after form package module 50 is provided with conversion then.
The second coding/decoding module 40, being used for the said data image signal data transaction of being represented by brightness and chrominance space is video codeword data stream, and/or according to said frame data, obtains the data image signal data of being represented by brightness and chrominance space (yuv data).In concrete the application; The second coding/decoding module 40 adopts the H264 coder/decoder; In the transfer process of picture-video; This second coding/decoding module 40 receives the data image signal data of being represented by brightness and chrominance space that transmitted by the first coding/decoding module 30, and the H264 coder/decoder fully moves to be estimated and the compression mechanism of compensation is compressed into the H264 bit stream data with yuv data, the video format that will can be play by 50 settings of form package module then.Certainly, if in the transfer process of video-picture, this 40 of second coding/decoding module is obtained yuv data according to frame data, then this yuv data is sent to the first coding/decoding module 30 and handles.
The first coding/decoding module 30 of the present invention and the second coding/decoding module 40 are preferred through the dsp processor realization.Need explain that in concrete the application, as if the user picture-video conversion parameter is not set, then the meeting of device is handled by default parameter value, the default value of video resolution depends on the ultimate resolution of dsp processor support and the resolution of image itself.If the resolution of all pictures is consistent, but the ultimate resolution of supporting greater than dsp processor, then default value can be made as the ultimate resolution that DSP supports automatically; If all photo resolution unanimities and the ultimate resolution of supporting less than DSP, then default value is made as the resolution of picture; If photo resolution is inconsistent, then default value can be selected the higher resolution of probability of occurrence, guarantee whereby transfer process carry out smoothly.
The present invention can convert all pictures under the plurality of pictures of choosing or certain file of choosing to the video file storage of a mp4 form through the existing DSP encoding and decoding technique in intelligent multimedia terminal.The picture that is about to be associated is packaged into a video, is convenient to user management, storage and retrieval, utilizes the spatial redundancy and the time redundancy that are associated between the picture, realizes that higher compression ratio is to reduce memory space.Photo for continuous shooting converts the mp4 video storage to, and compression effectiveness is particularly evident, and memory space accounts for 1/5 of picture-storage.Better, the present invention converts picture the video of continuous broadcast to, the user can the select File name or the time sort, picture compression is become the video of different playing sequence, bring brand-new vision dynamic and experience to the user.
Referring to Fig. 3, the invention provides the conversion method of a kind of picture and video, specifically be the conversion method that a kind of picture converts video into, it can realize that this method comprises through conversion equipment as shown in Figure 1 100:
Step S301, information acquisition module 10 acquisition modules obtain the parameter of pictorial information.In concrete the application; Generate the pictorial information chained list through the resolution information of resolving picture file and obtain, the information parameter of picture comprises its filename and resolution etc., and before this step S301; Device 100 at first receives the user and selects the picture order; Picture to be converted can be the content of a file, also can be the part picture, and preferentially selects the jpeg format picture for use.
Step S302, parameter processing module 20 is provided with picture-video conversion parameter, handles picture according to said picture-video conversion parameter, makes all picture size identical.In concrete the application, conversion parameter comprises the height of video file name, video resolution, video frame rate and selection image quality after the conversion etc., certainly; If the user is not provided with parameter; Then adopt the parameter of acquiescence automatically, also can picture-video conversion parameter be set automatically according to the parameter information of picture.The default value of video resolution depends on the ultimate resolution of the first coding/decoding module, 30 supports and the resolution of image itself.Frame per second and image quality can determine according to filename; If filename continuously then frame per second can be provided with higher; And that image quality can be provided with is lower, improves compression ratio whereby and saves the space, if filename is interrupted and do not have rule then need the frame per second setting is lower; Image quality is provided with higher, avoids degradation after the image lossy compression method.
Step S303 obtains the data image signal data of being represented by brightness and chrominance space of said picture.Concrete, the first coding/decoding module 30 at first reads the jpeg data of every pictures, and the said jpeg data of decoding then obtains the data image signal data represented by brightness and chrominance space.These data just can be used as the input data of H264 coder/decoder, need not carry out the color space conversion.
Step S304 is a video codeword data stream with the said data image signal data transaction of being represented by brightness and chrominance space.When the decoded yuv data of JPEG picture being sent to H264 coder/decoder (the second coding/decoding module 40), the H264 coding fully moves the compression mechanism of estimating and compensating yuv data is compressed into the H264 bit stream data.
Step S305, form package module 50 converts video codeword data stream to the video format file.Concrete; The H264 bit stream data is write in the mp4 file, just convert the H264 bit stream data into form that mp4 plays, finish up to all picture conversions; Sample behind every width of cloth coding of graphics in the corresponding mp4 file accomplishes the transfer process of picture to video whereby.
Preferably, after the JPEG picture in being elected to is converted into the mp4 video format fully, delete source file automatically, promptly delete the JPEG picture of being changed, reduce taking up room whereby.And the user only need select files to press from both sides and just can convert all pictures under the file to video, does not need filesselected successively, and is simple to operate.The user can set up resolution, the frame per second of coding, the height of image quality on their own, makes the user can control the generation of video file fully.And the present invention according to auto zoom being set and reducing picture size of encoder resolution, does not need manual work to carry out convergent-divergent in advance and reduces operation in transfer process.
Referring to Fig. 4, the invention provides the conversion method of another kind of picture and video, specifically be the conversion method that a kind of video converts picture into, it also can realize that this method comprises through conversion equipment as shown in Figure 1 100:
Step S401, information acquisition module 10 obtains the parameter of video file.Concrete parameter comprises its resolution and frame number information, needs explanation, and the resolution of video file has directly determined the resolution of conversion back picture, and the resolution sizes of all pictures of conversion back is consistent, and the video frame number determined the number of conversion back picture.
Step S402 reads the data of each frame of video file, i.e. H264 code stream, the corresponding sample of each frame data.
Step S403, the second coding/decoding module 40 is decoded to the H264 bit stream data according to said frame data, obtains the data image signal data of being represented by brightness and chrominance space.
Step S404, the first coding/decoding module 30 is the JPEG image data with the said data image signal data transaction of being represented by brightness and chrominance space.
Step S405, form package module 50 converts image data to the picture format file.In the practical application, the jpeg data after the compression are write the jpeg file, soon jpeg data converts the jpeg format picture into, is processed up to all frame H264 bit stream datas to finish.
The present invention not only can convert picture into video, can also the video after the conversion be restored into the picture form, makes the user be free to change at picture and video between the two, improves user experience.Certainly; Said video file can also be the ordinary video file; For the ordinary video file, can also comprise: the preset time interval of reading the video file frame data, promptly every at regular intervals as 2 seconds, 3 seconds, 5 seconds etc. just read the frame data of a video file; Can avoid saving memory space owing to the problem that picture number is too much and repeat too much appears in frame number.
In sum; The present invention is through being provided with picture-video conversion parameter, and handles picture according to picture-video conversion parameter, makes all picture size identical; Then according to pictorial information; Obtain the data image signal data of representing by brightness and chrominance space of picture, convert above signal data into video codeword data stream again, but through converting the video of broadcast format behind the formatting into.Preferably, picture adopts the JPEG picture, and video format is the MP4 form, can reduce taking up room of picture whereby, improves user's innervation experiencing.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the conversion method of picture and video is characterized in that said method comprises:
Picture-video conversion parameter is set, handles picture, make all picture size identical according to said picture-video conversion parameter;
Obtain the data image signal data of representing by brightness and chrominance space of said picture;
With the said data image signal data transaction of being represented by brightness and chrominance space is video codeword data stream;
Convert said video codeword data stream to the video format file.
2. the conversion method of picture according to claim 1 and video is characterized in that, the said step that picture-video conversion parameter is set also comprises before:
Obtain the parameter information of picture, be specially: the resolution information of resolving picture file generates the pictorial information chained list, comprises picture file name and resolution information in the said pictorial information chained list;
According to the parameter information of said picture, picture-video conversion parameter is set automatically.
3. the conversion method of picture according to claim 1 and video is characterized in that, the said data image signal data step of being represented by brightness and chrominance space of obtaining said picture comprises:
Read the jpeg data of every said picture;
The said jpeg data of decoding obtains the data image signal data represented by brightness and chrominance space.
4. the conversion method of picture according to claim 1 and video is characterized in that, said video codeword data stream is the H264 bit stream data.
5. the conversion method of picture according to claim 4 and video is characterized in that, saidly converts said video codeword data stream to video format file step and comprises:
Convert said H264 bit stream data into the mp4 broadcast format.
6. the conversion method of picture and video is characterized in that said method comprises:
Obtain the parameter of video file;
Read the data of said each frame of video file;
According to said frame data, obtain the data image signal data of representing by brightness and chrominance space;
With the said data image signal data transaction of being represented by brightness and chrominance space is image data;
Convert said image data to the picture format file.
7. the conversion method of picture according to claim 6 and video is characterized in that, said frame data are the H264 bit stream data.
8. the conversion method of picture according to claim 7 and video is characterized in that, and is said according to said frame data, obtains the data image signal data step of being represented by brightness and chrominance space and comprises:
The decoding of said H264 bit stream data obtained the data image signal data represented by brightness and chrominance space.
9. the conversion method of picture according to claim 6 and video is characterized in that, said image data is a jpeg data, and said picture format is a jpeg format.
10. the conversion equipment of picture and video is characterized in that, comprising:
The information acquisition module is used to obtain the parameter of pictorial information, and/or obtains the parameter of video file, and reads the data of said each frame of video file;
The parameter processing module is used to be provided with picture-video conversion parameter, handles picture according to said picture-video conversion parameter, makes all picture size identical;
The first coding/decoding module is used to obtain the data image signal data of being represented by brightness and chrominance space of said picture, and/or is image data with the data image signal data transaction of being represented by brightness and chrominance space of said picture;
The second coding/decoding module is a video codeword data stream with the said data image signal data transaction of being represented by brightness and chrominance space, and/or according to said frame data, obtains the data image signal data of being represented by brightness and chrominance space;
The form package module is used to be provided with the broadcast format of said video codeword data stream, and/or the form of said image data is set.
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| CN104765696A (en) * | 2015-04-07 | 2015-07-08 | 天脉聚源（北京）教育科技有限公司 | Data processing method and device |
| CN109040789A (en) * | 2017-04-08 | 2018-12-18 | 腾讯科技（深圳）有限公司 | A kind of photograph document handling method |
| CN111034187A (en) * | 2018-09-03 | 2020-04-17 | 深圳市大疆创新科技有限公司 | Dynamic image generation method and device, movable platform and storage medium |
| CN113434594A (en) * | 2021-06-16 | 2021-09-24 | 济南驰昊电力科技有限公司 | Method for displaying video through conversion of distributed image storage and transcoding |
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Application publication date: 20121010 |