CN109803157A - A kind of sequence frame picture transmission method, system and electronic equipment based on video - Google Patents
A kind of sequence frame picture transmission method, system and electronic equipment based on video Download PDFInfo
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Abstract
The present invention discloses a kind of sequence frame picture transmission method, system and electronic equipment based on video.Its method transmitted includes to receive the request of request end download sequence frame animation file；The corresponding video data of sequence frame animation file according to request；By the video data transmission to request end.Using transmission method of the present invention, system and electronic equipment, network transmission efficiency and transmission quality can be significantly improved.
Description
Technical field
The present invention relates to sequence frame picture transmission technology, the transmission side of especially a kind of sequence frame animation based on video
Method, system and electronic equipment.
Background technique
Sequence frame image is often used to do some pages by mobile terminal and imitates due to can intuitively show content abundant
Fruit.The image sequence that sequence frame image is made of the image of several arranged in sequence；Sequence frame animation refers to according to sequence frame
The technology of sequence play sequence frame image one by one.Sequence frame animation file generally comprises multiple images, if directly transmitting these
Sequence frame animation, the data volume for needing to transmit is very big, since the data volume of transmission is very big, it is easy to loading error occurring.So
Sequence frame animation file would generally be compressed, after this compressing file mode is compressed, data volume is still very big, compression ratio
It is low.
In conclusion that there are compression ratios in remote transmission is low for sequence frame animation file at present, transmitted data amount is big to be asked
How topic, cause sequence frame animation to transmit in the limited environment of network bandwidth the problem of going out heart receiving end poor video quality
The efficiency of transmission and transmission quality for improving frame animation file are those skilled in the art's technical problems urgently to be resolved.
Summary of the invention
In order to solve the above problems existing in the present technology, the problem to be solved in the present invention is to provide a set of raising frame animations
The solution of file efficiency of transmission and transmission quality in remote transmission.
To solve the above problems, the present invention proposes a kind of sequence frame picture transmission method based on video, this method comprises:
Receive the request of request end download sequence frame animation file；The corresponding video counts of sequence frame animation file according to request
According to；By the video data transmission to request end.
A kind of method of the corresponding video data of sequence frame animation file according to request is that basis is asked
It asks from memory and obtains the sequence frame animation file, extract the frame image data of the sequence frame animation file；By the frame
Image data extraction characteristic, saves as sequence of pictures；The sequence of pictures is generated into video data.
It preferably, will be in the video data storage to memory obtained after the processing of sequence frame animation file.
Preferably, the characteristic includes color data and gray scale diagram data, by the color for extracting described image
The data in channel obtain color data, obtain gray scale diagram data by extracting the data in the channel alpha of described image frame.It is described
The rgb value of color picture file is derived from the rgb value of original series frame image, alpha value 255；The rgb value of the grayscale image takes
From the rgb value of original series frame image, alpha value is set as 255.Color is obtained to each frame image of all frame image datas
Data and gray scale diagram data, obtain color sequence of pictures and sequence of grey level.Obtained transmitting video data includes color picture
Video data and grayscale image video data.
It preferably, further include storing the video data, the storage before video data transmission to request end
Method can be the modes such as local memory storage or network storage, cloud storage.If deposited in memory before transmission
It only needs to take out video data from memory in these video datas, then when transmitting and is directly transferred to request end.
The present invention also proposes a kind of sequence frame picture transmission method based on video, this method comprises: requesting to server-side
Download sequence frame animation file；Receive the video data of server-side transmission；The video data composition sequence frame animation that will be received
File.
Preferably, the video data includes color diagram piece video data and grayscale image video data.
Preferably, the step of composition sequence frame animation file includes that the video data is obtained sequence frame respectively
Image；Composition sequence frame image is assembled by the sequence frame image data acquisition image feature data, and by the characteristic；
By the sequence frame image-generation sequence frame animation file.
The step of described composition sequence frame animation file includes: that the color picture frame and grayscale image frame is taken to correspond to phase
With the image data frame and a grayscale image frame of position, the rgb value of the grayscale image frame is obtained, described image number is set as
According to the alpha value of frame, new picture frame is obtained, completes the information synthesis；After the completion of the information synthesis, one group of sequence is obtained
The sequence frame image is packaged and generates new video file, is sequence frame animation file by column frame image.
The system that the present invention proposes a kind of sequence frame picture transmission based on video, including data transmission and processing module, view
Frequency processing module, wherein data transmission and processing module is used to handle the request for receiving request end, and video processing module is handled
Obtained video data transmission is to request end；Video processing module is transmitted to handle sequence frame animation file
Required video data.
Preferably, a kind of system of sequence frame picture transmission based on video further includes memory module, for depositing
Store up frame animation file and corresponding video data.
A kind of system of sequence frame picture transmission based on video proposed by the present invention include data transmission and processing module and
Animation compound module, wherein data transmission and processing module requests download sequence frame animation file for realizing to server-side, and connects
Receive the video data of processing server-side transmission；Animation compound module be used for the video data that receives data transmission and processing module into
Row processing, obtains sequence frame animation file.
The a kind of electronic equipment that the present invention also proposes, including processor and memory, wherein the memory is for depositing
Store up executable program；The processor is for executing the executable program to realize the sequence frame picture transmission side based on video
Method.
Utilize method of the present invention, in remote transmission frame animation file on network, the video file data of transmission
Total amount only has 2 percent or so of original series frame animation file data amount, and it is dynamic that method of the present invention can also be used for frame
The storage for drawing file, greatly reduces the storage and network transmission volume of frame animation file, so as to significantly improve network transmission effect
Rate, stability and transmission quality.
In order to become apparent from comprehensive understanding to the present invention, with reference to the accompanying drawing, to the present invention is based on the sequence frames of video
The specific embodiment of picture transmission method and system is described in detail.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described.It should be evident that the drawings in the following description are only some examples of the present application, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the flow chart of sequence frame picture transmission method in one embodiment；
Fig. 2 is the flow chart of sequence frame picture transmission method in another embodiment；
Fig. 3 is the flow chart of sequence frame picture transmission method in another embodiment；
Fig. 4 is the structural schematic diagram of sequence frame picture transmission system in one embodiment；
Fig. 5 is the structural schematic diagram of sequence frame picture transmission system in another embodiment；
Fig. 6 is the schematic illustration that sequence frame image is split as to color image and gray level image in one embodiment；
Fig. 7 is the data conversion figure of sequence frame image in one embodiment.
Specific embodiment
Referring to the drawings, embodiments of the present invention and embodiment are described in detail.
Fig. 1 shows the flow chart of sequence frame picture transmission method in one embodiment, now in conjunction with flow chart shown in FIG. 1
It makes detailed explanation of each step:
In step slo, start the process flow.
In step s 11, receive the request of request end download sequence frame animation file.
In step s 12, the sequence frame animation file is obtained from memory according to the request of step S11, described in extraction
The frame image data of sequence frame animation file,
In step s 13, partitioning algorithm is respectively adopted in the frame image data obtained to S12 step, splits and exports several
The feature data frame of image and preservation.For example, a kind of dividing method as shown in FIG. 6, divides original sequence frame image 100
For color image frame 200 and grayscale image frame 300, the color picture frame is the number by extracting the Color Channel of described image frame
According to obtaining, rgb value is derived from the rgb value of original series frame image, alpha value 255；The grayscale image frame is by described in extraction
The data in the channel alpha of picture frame, rgb value are derived from the rgb value of original series frame image, and alpha value is set as 255.
In step S14, several sequence of pictures generated after the segmentation of S13 step are packaged respectively and generate video data,
As transmission data.By taking the sequence frame image segmentation that will be originally inputted is color picture and grayscale image picture as an example, then by step
The color picture frame and grayscale image frame that S13 is obtained are packaged respectively, obtain two video files, respectively color picture video and ash
Spend figure video.
In step S15, video data transmission that step S14 is obtained to request end.
In step s 16, terminate whole flow process.
After being handled according to the correlation step of S11-S14 above-mentioned, obtained two video file sizes and be primitive frame
2 percent or so of animation file size, both of these documents, which are transmitted to request end, can greatly reduce transmitted data on network
Amount, improves efficiency of transmission, reduces the unreliability of transmission.
Fig. 2 is the flow chart of sequence frame picture transmission method in another embodiment, in this embodiment, in S15 step
Before the step of increasing the S17 step storage video data, the advantage of doing so is that video data can be reused, such as
Fruit has other request ends to request identical sequence frame animation file, then this method can reduce the step for repeating S11-S14
Suddenly, it is directly transmitted using stored video data, reduces the workload of server-side processing, improve processing effect
Rate.Storage herein can be locally stored, the various storage modes such as network storage and cloud storage.
Fig. 3 shows the flow chart of sequence frame picture transmission method in another embodiment, now in conjunction with process shown in Fig. 3
Figure makes detailed explanation of each step:
In step S20, start the process flow.
In the step s 21, download sequence frame animation file is requested to server-side.
In step S22, the video data of server-side transmission is received.
In step S23, the video data composition sequence frame animation file that will receive.
The step of described composition sequence frame animation file includes: that the color picture frame and grayscale image frame is taken to correspond to phase
With the image data frame and a grayscale image frame of position, the rgb value of the grayscale image frame is obtained, described image number is set as
According to the alpha value of frame, new picture frame is obtained, completes the information synthesis；After the completion of the information synthesis, one group of sequence is obtained
The sequence frame image is packaged and generates new video file, is sequence frame animation file by column frame image.
Fig. 4 is that the structural schematic diagram of sequence frame picture transmission system 11 in one embodiment includes in this embodiment
Server-side data transmission and processing module 101, video processing module 102 and memory module 103.Server-side data transmission and processing module
The request for receiving request end is parsed, and effective request is forwarded to video processing module 102 and is handled, and monitors view
The feedback information of frequency processing module 102, when obtain video processing module 102 handled message after after, from video processing module
102 processing obtain the video data transmission handled well to request end.
Fig. 5 is the structural schematic diagram of sequence frame picture transmission system 22 in another embodiment, in this embodiment, including
Request end data transmission and processing module 201, animation compound module 202.Request end data transmission and processing module is to server end
The request of the transmission foradownloaded video animation of data transmission and processing module 101, and waiting for server end data transmission process module 101
Response, receives when servers' data transmission process module 101 passes video data back, after receiving all video datas
Animation compound module 202 is transmitted to be synthesized.
Fig. 6 shows data conversion process of the frame animation data in present invention process shown in FIG. 1, original sequence
Frame image 100 is divided into color image frame 200 and grayscale image frame 300, and the color picture frame is by extracting described image frame
The data of Color Channel obtain, rgb value is derived from the rgb value of original series frame image, alpha value 255；The grayscale image frame
It is the data by extracting the channel alpha of described image frame, rgb value is derived from the rgb value of original series frame image, alpha value
It is set as 255.
Fig. 7 is the data conversion figure of sequence frame image in one embodiment, wherein 11 be the service of sequence frame animation process
End, 22 be the request end for needing to obtain sequence frame animation, and 22 can be PC computer or mobile terminal device.Server-side this
End, step S11 according to Fig. 1 have obtained primitive frame animation data 100, step S13 according to Fig. 1, to primitive frame
Animation 100 is divided into color data frame 200 and transparency data frame 300, step S14 according to Fig. 1, to color data frame
200 progress videos obtain color video data file 400；Video is carried out to transparency data frame 300 and obtains transparency view
Frequency data file 500；400 and 500 be transmission data 33 in Fig. 7, is transmitted to request end by server-side.
In Fig. 7, download sequence frame animation file, server-side abstraction sequence frame animation text are requested to server-side 11 in request end 22
The corresponding color video data file 400 of part and transparency video data file 500, and form transmission data 33 and passed by network
It is defeated by request end.
As shown in figure 3, after request end 22 obtains color video data file 400 and transparency video data file 500, it is right
Color video data file 400 isolates color frame image 200 ' by certain frame speed；To transparency video data file 500
Grayscale image frame data 300 ' are gone out using same frame speed sub-argument, the R color value of transparency data frame, corresponding image is arrived in setting
For the alpha value of data frame to get new sequence frame animation 100 ' is arrived, the sequence frame and original series frame 100 are identical.
Disclosed method to realize the present invention, is given below a kind of embodiment, which needs to use third
The module of side, including OpenCV, FFmpeg, OpenGL.
In the step S13 of Fig. 1, the imread function of OpenCV module can be used, realizes the face for reading sequence frame picture
Chromatic number evidence and gray scale diagram data.
Color diagram is written into the image data color data of reading and gray scale diagram data using the imwrite method of OpenCV
As file and gray level image file.First parameter of imwrite is that the path of image file is written；Second parameter is image
Data；Third parameter params can specify some detailed information of file format；JPEG: the quality of image, value are indicated
Range is from 0 to 100, and numerical value is bigger, and expression picture quality is higher, and file is also bigger, and default value takes 95；PNG indicates compression level,
Value range is from 0 to 9, and the bigger expression file of numerical value is smaller, but compression time is also longer, and default takes 3.
It by the above method, can complete in the step S13 of Fig. 1, sequence frame image is split as color image and gray scale
The function of image.
In S14 step, the color image sequence and gray scale that will receive are completed using the order ffmpeg of FFmpeg module
The method of image sequence composograph data video and alpha data video.It is specific as follows:
2-y-r of ffmpeg-threads, 25-i images/alpha%d.png-vcodec libx264alpha.mp4
Parameter-threads expression therein can be run with multithreading, accelerate the speed of processing, and 2 indicate with two threads
It is handled；- y expression covers output file；- r indicates that setting generates the frame speed of video, and the present embodiment uses 25
Frame/second rate；- i indicates that input picture file, images/alpha%d.png are file sequence；- vcodec indicates setting
The format of video, libx264 indicate that video is libx264 format；Alpha.mp4 is the export file name of video.
Another embodiment of the invention is implemented in mobile request end, carries out specific implementation side by taking the end iOS as an example below
When illustrating that mobile request end is implemented of formula, the embodiment of step S23 is as follows:
An AVURLAsset is created first, and a kind of embodiment for loading video data is as follows:
AVURLAsset*asset=
[[AVURLAsset alloc]]initWithURL:videoPath options:nil]
Parameter videoPath therein indicates the address of video.
Then an AVAssetImageGenerator is created come interception image, a kind of implementation with AVURLAsset
It is as follows:
AVAssetImageGenerator*gen=
[[AVAssetImageGenerator alloc]initWithAsset:asset]
A kind of embodiment of accurate time is set to AVAssetImageGenerator:
Gen.requestedTimeToleranceAfter=kCMTimeZero
Gen.requestedTimeToleranceBefore=kCMTimeZero
A kind of implementation for reading each frame image data in video is as follows:
CGImageRef*imageRef=
[gen copyCGImageAtTime:CMTimeMake(128,25)
actualTime:&actualTime error:@error]
Using above method, color data video and each frame of grayscale image data video will be obtained respectively at the end IOS
Image.
The reference of color data video and grayscale image Data Synthesis sequence frame image is accomplished by
Vec4textureColor=
texture2D(inputImageTexture,textureCoordinate)
Vec4textureColor2=
texture2D(inputImageTexture2,textureCoordinate2)
Gl_FragColor=vec4 (textureColor.rgb, textureColor2.r)
Wherein: textureColor is color of the color image at the i of certain point, and textureColor2 is grayscale image figure
As the color at identical point i.
Color of the newly-generated image at point i takes the rgb value of color image to be set as with the R value of alpha image
The rgb value of alpha value, alpha image is identical.
By above embodiment, original sequence frame animation file can be generated.
Module described in method and system disclosed by the invention, in practical applications, it can on a server
Multiple modules are disposed, can also independently be disposed with each module on a different server, particularly, as needed, in order to provide
More powerful video cartoon processing capacity, also can according to need and module is deployed on cluster server.
The embodiment of the present application also provides a kind of electronic equipment, includes processor and memory in the electronic equipment, described
Executable program is stored in memory, when the executable program is run on computers, the computer executes above-mentioned
Sequence frame picture transmission method described in any embodiment based on video.
It should be noted that those of ordinary skill in the art will appreciate that whole in the various methods of above-described embodiment or
Part steps are relevant hardware can be instructed to complete by computer program, and the computer program can store in meter
In calculation machine readable storage medium storing program for executing, the storage medium be can include but is not limited to: read-only memory (ROM, Read Only
Memory), random access memory (RAM, RandomAccess Memory), disk or CD etc..
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (13)
1. a kind of sequence frame picture transmission method based on video, it is characterised in that:
Receive the request of request end download sequence frame animation file；
The corresponding video data of sequence frame animation file according to request；
By the video data transmission to request end.
2. the method according to claim 1, wherein obtaining the corresponding video data of the sequence frame animation file
The step of include:
Extract the frame image data of the sequence frame animation file；
The frame image data is extracted into characteristic, saves as sequence of pictures；
The sequence of pictures is generated into video data.
3. according to the method described in claim 2, it is characterized in that, after the generation video data by the sequence of pictures
Further include the steps that storing video data.
4. according to the method described in claim 2, it is characterized in that, the characteristic includes: color data and grayscale image
Data.
5. according to the method described in claim 2, it is characterized in that, the sequence of pictures includes: color sequence of pictures and ash
Spend graphic sequence.
6. the method according to claim 1, wherein the video data includes: color picture video data
With grayscale image video data.
7. a kind of sequence frame picture transmission method based on video, it is characterised in that:
Download sequence frame animation file is requested to server-side；
Receive the video data of server-side transmission；
The video data composition sequence frame animation file that will be received.
8. according to the method described in claim 7, it is characterized by: the video data include color diagram piece video data and
Grayscale image video data.
9. according to the method described in claim 7, it is characterized by: the step of described composition sequence frame animation file include:
The video data is obtained into sequence frame image respectively；
By the sequence frame image data acquisition image feature data, and by the characteristic composition sequence frame image；
By the sequence frame image-generation sequence frame animation file.
10. a kind of sequence frame picture transmission service end system based on video, comprising:
Server-side data transmission and processing module for handling the request for receiving request end, and video processing module is handled to obtain
Video data transmission to request end；
Video processing module handles sequence frame animation file, obtains video data required for transmitting.
11. system according to claim 10, which is characterized in that further include memory module, for storing frame animation file
With corresponding video data.
12. a kind of sequence frame picture transmission based on video requests end system, comprising:
Request end data transmission and processing module requests download sequence frame animation file for realizing to server-side, and receives processing
The video data of server-side transmission；
Animation compound module, the video data for receiving request end data transmission and processing module are handled, and obtain sequence
Frame animation file.
13. a kind of electronic equipment, which is characterized in that it further include processor and memory,
The memory is for storing executable program；
The processor is used to execute the executable program to realize that the sequence frame described in claim 1-9 based on video is dynamic
Draw transmission method.
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