CN102523513B - Implementation method for accurately obtaining images of original video file on basis of video player - Google Patents
Implementation method for accurately obtaining images of original video file on basis of video player Download PDFInfo
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- CN102523513B CN102523513B CN201110459662.1A CN201110459662A CN102523513B CN 102523513 B CN102523513 B CN 102523513B CN 201110459662 A CN201110459662 A CN 201110459662A CN 102523513 B CN102523513 B CN 102523513B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000009499 grossing Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000013500 data storage Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000004321 preservation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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Abstract
The invention discloses an implementation method for accurately obtaining images of an original video file on the basis of a video player. The method comprises the steps as follows: monitoring the video player through a client side in the whole process to obtain parameters of a video, plugging all the obtained parameters of the video into a function and executing the function, obtaining the video data range of the video played currently through calculation, and performing difference smoothing to video data to obtain the images of the original video file closest to the video data, namely the current frame images. According to the invention, the images of the original video file are obtained according to the video played by the video player, so that the obtained images are clear, and the effect is better.
Description
Technical field
The present invention relates to video player field, particularly a kind of implementation method accurately obtaining former video file image based on video player.
Background technology
Video player refers to the software can play with the video of digital signal form storage, and except minority wave file, most of video player carries decoder with reduction through compressed media file.Frame per second due to former video file is generally 24-30 frame/second, and video player carrys out displaying video with the frame per second of about 50-60 frame/second usually, all video players also want the algorithm of a whole set of inversion frequency built-in and buffering, after frequency inverted, the frame per second of video player is just different from the frame per second of former video file, add many new video images, this video image processes the image of former video file and obtains, will inevitably be different with the image of former video file, image effect declines.
The function of existing calculating video image can only calculate the video image of video player in addition, when carrying out the operations such as sectional drawing to this video image, the video image obtained, compared with the image of former video file, there will be effect and declines, the not fogging problem such as clear.
Summary of the invention
The object of the invention is, provides a kind of implementation method accurately obtaining former video file image based on video player, accurately can obtain the image of former video file, thus cause sectional drawing clear picture, and improve the effect of sectional drawing image.
For solving above technical problem, a kind of implementation method accurately obtaining former video file image based on video player, comprising:
Obtain the video data scope of current displaying video;
Difference smoothing processing is carried out to this video data;
Obtain the current frame image of former video file.
The frame per second of described video player displaying video is different from the frame per second of former video file.
Described difference determines according to the frame per second of video player displaying video and the frame per second of former video file.
The length of described video data scope is greater than the frame length of former video file image one frame.
Described current frame image is the former video file image closest to video data.
Described video player is when carrying out sectional drawing to a certain two field picture, corresponding former video file image is obtained by obtaining current playing video data scope and carrying out difference smoothing processing to this video data, to this image sectional drawing, after sectional drawing completes, picture is preserved in prompting.
When adding remark information to client, client can respond and eject the remarks frame for inputting information.
After video player obtains remark information, client sends HTTP request and this remark information is transferred to server.
Server adds remark information to database, then data storage condition is transferred to client by return information after receiving the HTTP request of client transmission.
By analyzing described return information, for judging whether described remark information is preserved successfully, perform corresponding operation according to judged result.
Compared with prior art, the present invention is based on the implementation method that video player accurately obtains former video file image, by obtaining the video data scope of current displaying video, and difference smoothing processing is carried out to this video data, thus obtain the current frame image of former video file, and this video player can to current frame image sectional drawing while displaying video, without the need to using external auxiliary instrument sectional drawing, thus cause sectional drawing clear picture, reduce time and the step of sectional drawing while improving sectional drawing image effect; In addition, this video player can add remark information, after client obtains remark information, send HTTP request and remark information is transferred to server, this remark information adds in database by server, returns interpolation information, whether user is liked this video by remark information, broadcasting situation etc. has detailed understanding, searches the problems such as the follow-up connection of video, for user provides convenience after solving video breaks.
Accompanying drawing explanation
Fig. 1 the present invention is based on the data flow figure that video player accurately obtains the implementation method of former video file image;
Fig. 2 the present invention is based on the implementation method flow chart that video player accurately obtains former video file image;
Fig. 3 is the implementation method flow chart of the former video file sectional drawing of video player of the present invention;
Fig. 4 is the implementation method flow chart that video player of the present invention adds remark information.
Embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
See Fig. 1, player is based on Flash technology, in webpage, mainly carry out the broadcasting of video, and client browser first request server obtains corresponding video, and server returns video to client, is then loaded in client terminal web page player and plays.
The concrete operations that this video player realizes displaying video are as follows:
Client browser, by sending HTTP request, sends the information such as the address of client and the video that will play to server;
Server receives HTTP request, searches the video required for client in a database according to the information of HTTP request;
Server turns back to client according to the result of searching, and client performs corresponding operation according to the result returned, and concrete operations are as follows:
If server can not find this video, then in video player at client end, show this video file do not exist.
If server have found this video, then video player at client end is through carrying out decompress(ion) to this video file and playing.
See Fig. 2, image is realized to the precise manipulation of single frames in video display process to realize video player, the present invention mainly adopts following methods:
The parameter of S201, acquisition displaying video:
Video uses the video web page player in client to play, client just can monitored over time video display process, obtain the parameters such as the reproduction time of video, video frame rate, F.F. and retrogressing, and all video parameters are transferred to corresponding function.
S202, operation function:
Described function is the function of existing calculating video image, all video parameters obtained is substituted into function, and to substituting into the function operation of parameter, will obtain current video data like this.
The video data scope of S203, acquisition displaying video:
The result running function obtains current video data, then selects suitable data area according to the frame per second of former video file in the front and back of the position at current video data place.
S204, difference smoothing processing is carried out to video data:
Obtain the concrete numerical value of difference after tested according to the frame per second of video player displaying video and the frame per second of former video file, then just video data carries out moving forward and retreating, and searches the image that video player enters to overlap with former video literary composition.
S205, obtain the current frame image of former video file:
According to obtaining two adjacent images after difference smoothing processing, selecting from the image that video data is nearest is current frame image, and reads from former video file.
S206, obtain the consecutive frame image of former video file:
By the current frame image obtained, navigate to lower some frames or upper some two field pictures according to the frame per second of former video file, the image of location is arranged to current frame image to operate.
In sum, the present invention is by obtaining the video data scope of current displaying video, and this video data of difference smoothing processing, obtain the former video file image of present frame, then required image is navigated to according to current frame image, precise manipulation is carried out to former video file, makes the clear picture of acquisition and effect is better.
Video player of the present invention can while displaying video cut-away view picture, described image is the image obtaining the former video file corresponded according to the video data of current broadcasting, and its concrete operations are as follows:
S301, acquisition current video data scope:
According to the video of the current broadcasting of client monitored over time, obtain video parameter, and parameter is substituted into function operation, obtain just in the video data scope of displaying video.
S302, obtain and need the current frame image of sectional drawing:
Carry out difference smoothing processing to above-mentioned video data, obtain current frame image, described current frame image is the former video file image closest to video data.
S303, carry out sectional drawing:
Current frame image is presented at video player, and sectional drawing is carried out to this image.
S304, preservation image:
If Image Saving success, then enter step S305;
If Image Saving failure, then enter step S306;
After above-mentioned image completes sectional drawing, point out and preserve this image, person easy to use searches or uses this image.
S305, return and preserve image successful information:
After preserving sectional drawing success, preservation image successful information will be returned and be transferred to user, remind this successful operation of user.
S306, return and preserve image failure information:
The image of sectional drawing cannot be preserved or other modes cause Image Saving failure, then return preservation image failure information and be transferred to user, remind this operation failure of user, user according to circumstances by oneself.
Said method can carry out sectional drawing to the image of former video file while video playback, makes truncated picture clear and better effects if, facilitates user simultaneously, decreases the time and step that use outside sectional drawing aid.
Video player of the present invention can add remark information, after client obtains remark information, by HTTP request, remark information is transferred to server, server receives this HTTP request, according to the content of request by described remark information stored in database, and data storage condition is turned back to client, client is analyzed return information, carry out corresponding operation response according to actual conditions, its concrete steps are as follows:
S401, obtains the remark information added:
When user has certain idea to the video play time, some remark informations will be added, such as user will terminate now video for a certain reason and prepare viewing next time, with regard to needing, remarks are carried out to the time of current displaying video, according to custom and the idea of user oneself, inputting the remark information facilitating oneself to understand, ejecting while client can respond this operation for obtaining the remarks frame adding remark information.
S402, transmission remark information are to server:
After client obtains remark information, by sending HTTP request, this remark information is transferred to server.
The return information of S403, acquisition server:
Server receives HTTP request, according to the content of HTTP request, described remark information is transferred to database and by this remark information stored in database, the result that data store is transmitted so that client obtains this return information by return information simultaneously.
S404, analysis return information:
If analysis result display data store unsuccessfully, then enter step S405;
If analysis result display data are stored as merit, then enter step S406;
Client receives return information, and analyzes this return information, and the result according to analyzing performs different operations.
S405, prompting user:
Namely data store unsuccessfully adds remark information failure, and client reminds user by sending the means such as alarm, and after receiving prompting, user determines the operation whether returning step S401 or abandon remarks according to the actual conditions of oneself.
Remark information success is added in S407, display:
The analysis result display data of client to return information are stored as merit, then represent that this remark information adds successfully, client will point out the successful information transmission of this remark information to user.
Said method client passes through HTTP request, remarks letter is transferred to server, server adds remark information in a database according to request, described remark information can be pointed out to user when user again displaying video, person easy to use has detailed understanding to this video broadcasting last time situation etc., thus provides convenience for user.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. accurately obtain an implementation method for former video file image based on video player, it is characterized in that, comprising:
According to the frame per second of former video file in the position of current video data, obtain the video data scope of current broadcasting;
Difference smoothing processing is carried out to this video data;
Obtain the current frame image of former video file;
Wherein, describedly difference smoothing processing is carried out to this video data be specially: according to the frame per second of video player displaying video and the frame per second determination difference of former video file, then video data is carried out moving forward or retreating, search the image that video player overlaps with former video file.
2. accurately obtain the implementation method of former video file image as claimed in claim 1 based on video player, it is characterized in that, the frame per second of described video player displaying video is different from the frame per second of former video file.
3. accurately obtain the implementation method of former video file image as claimed in claim 1 based on video player, it is characterized in that, the length of described video data scope is greater than the frame length of former video file image one frame.
4. accurately obtain the implementation method of former video file image as claimed in claim 1 based on video player, it is characterized in that, described current frame image is the former video file image closest to video data.
5. the implementation method of former video file image is accurately obtained as claimed in claim 1 based on video player, it is characterized in that, when carrying out sectional drawing to a certain two field picture, corresponding former video file image is obtained by obtaining current playing video data scope and carrying out difference smoothing processing to this video data, to this image sectional drawing, after sectional drawing completes, picture is preserved in prompting.
6. accurately obtain the implementation method of former video file image as claimed in claim 1 based on video player, it is characterized in that, when adding remark information to client, client can respond and eject the remarks frame for inputting remark information.
7. accurately obtain the implementation method of former video file image as claimed in claim 6 based on video player, it is characterized in that, after video player obtains remark information, client sends HTTP request and this remark information is transferred to server.
8. the implementation method of former video file image is accurately obtained as claimed in claim 7 based on video player, it is characterized in that, server adds remark information to database, then data storage condition is transferred to client by return information after receiving the HTTP request of client transmission.
9. accurately obtaining the implementation method of former video file image as claimed in claim 8 based on video player, it is characterized in that, by analyzing described return information, for judging whether described remark information is preserved successfully, performing corresponding operation according to judged result.
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| CN104394345B (en) * | 2014-12-10 | 2017-11-07 | 黄山中鼎信息技术有限公司 | A kind of safety monitoring video storage and back method |
| CN110166795B (en) * | 2018-07-19 | 2022-02-18 | 腾讯科技（深圳）有限公司 | Video screenshot method and device |
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