CN104020986B - A kind of screen recording method and device - Google Patents
A kind of screen recording method and device Download PDFInfo
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- CN104020986B CN104020986B CN201310066064.7A CN201310066064A CN104020986B CN 104020986 B CN104020986 B CN 104020986B CN 201310066064 A CN201310066064 A CN 201310066064A CN 104020986 B CN104020986 B CN 104020986B
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Abstract
The present invention is suitable for information technology field, provides a kind of screen recording method and device, comprising: generates N number of media frame, N number of media frame is generated by grabbing a screen picture every first time interval, and the N is the integer greater than 1；Adjust the time interval between N number of media frame；According to the time interval between N number of media frame adjusted, the timestamp of each media frame is generated；Video file is exported after the timestamp of each media frame to be written to the frame structure of the media frame.It is recorded to screen operator, during generating record screen file, the present invention is by being adjusted the time interval between adjacent media frame, so that the video file generated can be realized variable playback, it is played out not necessarily in frame per second is recorded, to avoid the meaningless waiting time occurred during video playing is shielded in record, the information content in the record screen units of video time is improved.
Description
Technical field
The invention belongs to information technology field more particularly to a kind of screen recording methods and device.
Background technique
Record screen software can have computer, tablet computer or mobile phone etc. the screen change of screen terminal device to record into view
Frequently, by with screen software is recorded, can be realized the real-time preservation of operation scenario, or the online Streaming Media text that realization can not play back
The real-time recording of part.
However, existing record screen software can only simply record screen operator according to certain frame per second, and
Video playing must be carried out according to frame per second identical with frame per second is recorded, it is unchanged in screen long-time when occurring in recording process
Or the situation that variation is less, then the picture variation when carrying out video playing in the period is also less.For example, software
Installation process may need to wait 3 to 5 minutes in same installation interface, and installation interface has no substantial variation in this period,
So as to cause video provided information content reduction within the unit time of recording.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of screen recording method, it is intended to solve existing screen recording method
It is easy to cause the video of recording within the unit time the problem of reduction of provided information content.
The embodiments of the present invention are implemented as follows, a kind of screen recording method, comprising:
N number of media frame is generated, N number of media frame is by grabbing a screen picture next life every first time interval
At the N is the integer greater than 1；
Adjust the time interval between N number of media frame；
According to the time interval between N number of media frame adjusted, the timestamp of each media frame is generated；
Video file is exported after the timestamp of each media frame to be written to the frame structure of the media frame.
The another object of the embodiment of the present invention is to provide a kind of screen recording device, comprising:
Media frame generation unit, for generating N number of media frame, N number of media frame every first time interval by grabbing
A screen picture is taken to generate, the N is the integer greater than 1；
Adjustment unit, for adjusting the time interval between N number of media frame；
Timestamp generation unit, for generating each matchmaker according to the time interval between N number of media frame adjusted
The timestamp of body frame；
Video file output unit exports view after the frame structure for the timestamp of each media frame to be written to the media frame
Frequency file.
It is recorded to screen operator, during generating record screen file, the embodiment of the present invention passes through to adjacent media
Time interval between frame is adjusted, so that the video file generated can be realized variable playback, it is not necessary to according to recording frame per second
It plays out, to avoid the meaningless waiting time occurred during video playing is shielded in record, improves record screen units of video
Information content in time.
Detailed description of the invention
Fig. 1 is the implementation flow chart of screen recording method provided in an embodiment of the present invention；
Fig. 2 is the implementation flow chart of screen recording method step S102 provided in an embodiment of the present invention；
Fig. 3 is the structural block diagram of screen recording device provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It is recorded to screen operator, during generating record screen file, the embodiment of the present invention passes through to adjacent media
Time interval between frame is adjusted, so that the video file generated can be realized variable playback, it is not necessary to according to recording frame per second
It plays out, to avoid the meaningless waiting time occurred during video playing is shielded in record, improves record screen units of video
Information content in time.
Fig. 1 shows the implementation process of screen recording method provided in an embodiment of the present invention, and details are as follows:
In step s101, N number of media frame is generated, N number of media frame is primary by grabbing every first time interval
Screen picture generates, and the N is the integer greater than 1.
When executing screen recording, current screen picture is grabbed every first time interval, generates bitmap images
(bitmap) or the image file of other picture formats it, and by the image file of generation is passed to encoder, by Video coding
After generate media frame.
In the present embodiment, first time interval is the recording interval of screen recording, for defining the recording of screen recording
Frame per second, for example, first time interval is 1/24 second, then the recording frame per second of screen recording is 24 frame per second.
In step s 102, the time interval between N number of media frame is adjusted.
In the present embodiment, after step S101 generates N number of media frame, acquiescently, between the time between adjacent media frame
It is divided into first time interval.In step s 102, the time interval between this N number of media frame is adjusted in whole or in part
It is whole.
Specific adjustment mode will be described in detail in subsequent embodiment, and details are not described herein.
In step s 103, according to the time interval between N number of media frame adjusted, each media frame is generated
Timestamp.
Specifically, if time adjusted for the 1st, 2,3,4 ... a media frames, between every two adjacent media frame
Interval is respectively 25ms, 5ms, 5ms ..., then the 1st, the corresponding timestamp of 2,3,4 ... a media frames be respectively 0,25ms,
30ms,35ms…….That is, in the 1st media frame of display in the 0th second, the 2nd media frame is shown in 25ms, is shown in 30ms
3rd media frame shows the 4th media frame ... and so in 35ms.
In step S104, video file is exported after the timestamp of each media frame to be written to the frame structure of the media frame.
According to the timestamp of each media frame generated in step S103, the media are written into the timestamp of each media frame
In the frame structure of frame, specifically, it can be written into the head or other designated positions of the frame structure, in the frame of N number of media frame
Structure is added to after timestamp, this N number of media frame is sequentially passed to mixer, can export the video text of record screen video
Part.
The record screen video generated by the present embodiment can show the effect of variable playback in playing process, for screen
Image change is less or the screen picture not changed period, can shorten between the play time between adjacent media frame
Every accelerating the display rate of media frame；And screen picture is changed greatly and the screen picture pace of change faster period,
The play time interval between adjacent media frame can be extended, to slow down the display rate of media frame, to shield video according to record
Actual content come variable playback record screen video, improve the unit time in record screen video information content.
As an embodiment of the present invention, step S102 specifically:
Time interval between every two adjacent media frame is adjusted to the second time interval.
In the present embodiment, by the way that the time interval between every two adjacent media frame is adjusted to the second time interval,
It on the basis of original record screen frame per second, can uniformly accelerate the playback rate of record screen video or slow down the broadcasting of record screen video
Rate.
As another embodiment of the present invention, as shown in Fig. 2, step S102 specifically:
In step s 201, M speed change media frame is determined in N number of media frame according to selection instruction, the M is big
In the integer equal to 1 and less than or equal to N.
In the present embodiment, by detecting and selecting instruction, M speed change media frame is determined in N number of media frame, specifically,
N number of media frame can be shown in record screen software interface with the form of list or index, by detecting N number of media frame
Wherein M media frame on the selection instruction that receives, this M media frame is determined as speed change media frame.
In step S202, by the time interval of each speed change media frame and the previous media frame of the speed change media frame
It is adjusted to the second time interval.
In the present embodiment, by by the time interval of each speed change media frame and the previous media frame of the speed change media frame
It is adjusted to the second time interval, partially or entirely the time interval between this N number of media frame can be adjusted, is realized
The variable playback of record screen video.
As an embodiment of the present invention, above-mentioned first time interval is less than above-mentioned second time interval.
As another embodiment of the present invention, above-mentioned first time interval is greater than above-mentioned second time interval.
It is recorded to screen operator, during generating record screen file, the embodiment of the present invention passes through to adjacent media
Time interval between frame is adjusted, so that the video file generated can be realized variable playback, it is not necessary to according to recording frame per second
It plays out, to avoid the meaningless waiting time occurred during video playing is shielded in record, improves record screen units of video
Information content in time.
Fig. 3 shows the structural block diagram of screen recording device provided in an embodiment of the present invention, which can run on meter
In the terminal devices such as calculation machine, tablet computer or mobile phone, for running screen recording shown in Fig. 1 and Fig. 2 embodiment of the present invention
Method.For ease of description, only the parts related to this embodiment are shown.
Referring to Fig. 3, which includes:
Media frame generation unit 31 generates N number of media frame, and N number of media frame every first time interval by grabbing
Screen picture generates, and the N is the integer greater than 1.
Adjustment unit 32 adjusts the time interval between N number of media frame.
Timestamp generation unit 33 generates each media according to the time interval between N number of media frame adjusted
The timestamp of frame.
Video file output unit 34 exports after the frame structure for the timestamp of each media frame to be written to the media frame
Video file.
Optionally, the adjustment unit 32 is specifically used for for the time interval between every two adjacent media frame being adjusted to the
Two time intervals.
Optionally, the adjustment unit 32 includes:
Determine subelement, according to selection instruction in N number of media frame determine M speed change media frame, the M for greater than
Integer equal to 1 and less than or equal to N.
Subelement is adjusted, by the time interval tune of each speed change media frame and the previous media frame of the speed change media frame
Whole is the second time interval.
Optionally, the first time interval is less than second time interval.
Optionally, the first time interval is greater than second time interval.
It is recorded to screen operator, during generating record screen file, the embodiment of the present invention passes through to adjacent media
Time interval between frame is adjusted, so that the video file generated can be realized variable playback, it is not necessary to according to recording frame per second
It plays out, to avoid the meaningless waiting time occurred during video playing is shielded in record, improves record screen units of video
Information content in time.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of screen recording method characterized by comprising
N number of media frame is generated, N number of media frame is generated by grabbing a screen picture every first time interval, institute
Stating N is the integer greater than 1；
The time interval between N number of media frame is adjusted, includes that M speed change media frame and N-M are non-in N number of media frame
Speed change media frame；
According to the time interval between N number of media frame adjusted, the timestamp of each media frame is generated；
Video file is exported after the timestamp of each media frame to be written to the frame structure of the media frame, the video file can be real
Existing variable playback.
2. the method as described in claim 1, which is characterized in that the time interval packet between adjustment N number of media frame
It includes:
Time interval between every two adjacent media frame is adjusted to the second time interval.
3. the method as described in claim 1, which is characterized in that the time interval packet between adjustment N number of media frame
It includes:
M speed change media frame is determined in N number of media frame according to selection instruction, the M is more than or equal to 1 and to be less than or equal to
The integer of N；
The time interval of each speed change media frame and the previous media frame of the speed change media frame was adjusted between the second time
Every.
4. method according to claim 2, which is characterized in that the first time interval is less than second time interval.
5. method according to claim 2, which is characterized in that the first time interval is greater than second time interval.
6. a kind of screen recording device characterized by comprising
Media frame generation unit, for generating N number of media frame, N number of media frame is by grabbing one every first time interval
Secondary screen image generates, and the N is the integer greater than 1；
Adjustment unit includes M speed change matchmaker in N number of media frame for adjusting the time interval between N number of media frame
Body frame and N-M non-speed change media frames；
Timestamp generation unit, for generating each media frame according to the time interval between N number of media frame adjusted
Timestamp；
Video file output unit, output video text after the frame structure for the timestamp of each media frame to be written to the media frame
Part, the video file can be realized variable playback.
7. device as claimed in claim 6, which is characterized in that the adjustment unit is specifically used for every two adjacent media frame
Between time interval be adjusted to the second time interval.
8. device as claimed in claim 6, which is characterized in that the adjustment unit includes:
Determine subelement, for according to selection instruction in N number of media frame determine M speed change media frame, the M for greater than
Integer equal to 1 and less than or equal to N；
Subelement is adjusted, for by the time interval tune of each speed change media frame and the previous media frame of the speed change media frame
Whole is the second time interval.
9. device as claimed in claim 7, which is characterized in that the first time interval is less than second time interval.
10. device as claimed in claim 7, which is characterized in that the first time interval is greater than second time interval.
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| CN201310066064.7A CN104020986B (en) | 2013-02-28 | 2013-02-28 | A kind of screen recording method and device |
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| CN201310066064.7A CN104020986B (en) | 2013-02-28 | 2013-02-28 | A kind of screen recording method and device |
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| CN104020986A CN104020986A (en) | 2014-09-03 |
| CN104020986B true CN104020986B (en) | 2019-01-01 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104936002B (en) * | 2015-06-05 | 2018-11-06 | 网易有道信息技术（北京）有限公司 | A kind of method and apparatus of screen recording |
| CN105578254A (en) * | 2015-12-24 | 2016-05-11 | 深圳市金立通信设备有限公司 | Video processing method and terminal |
| CN106128355A (en) * | 2016-07-14 | 2016-11-16 | 北京智能管家科技有限公司 | The display packing of a kind of LED battle array and device |
| CN107292944A (en) * | 2017-06-26 | 2017-10-24 | 上海传英信息技术有限公司 | The method for recording and recording system of a kind of screen picture |
| CN107577489A (en) * | 2017-08-03 | 2018-01-12 | 捷开通讯(深圳)有限公司 | Method, mobile terminal and the storage device of remote assistance |
| CN108391123A (en) * | 2018-02-09 | 2018-08-10 | 维沃移动通信有限公司 | A kind of method and terminal generating video |
| CN113163256B (en) * | 2021-04-29 | 2024-01-23 | 深圳市艾酷通信软件有限公司 | Method and device for generating operation flow file based on video |
| CN113572954B (en) * | 2021-06-15 | 2022-10-04 | 荣耀终端有限公司 | Video recording method, electronic device and medium |
| CN114615539A (en) * | 2022-03-29 | 2022-06-10 | 西安超越申泰信息科技有限公司 | Multi-display screen recording playback method, computer and readable medium |
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