CN107018443B - Video recording method and device and electronic equipment - Google Patents
Video recording method and device and electronic equipment Download PDFInfo
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- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
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Abstract
The invention provides a video recording method, a video recording device and electronic equipment, wherein the method comprises the following steps: in the process of playing the target video, a plurality of pictures are obtained by respectively carrying out picture conversion for a plurality of times, the audio stream of the target video is recorded, the plurality of pictures are synthesized as frame images to obtain the video stream, and then the video stream and the audio stream are synthesized to obtain the recorded video clip, so that the recording of the target video is realized, the technical problem that the mobile terminal cannot record the video clip in the prior art is solved, and the requirement of repeatedly watching by a user is met through the embodiment of the invention.
Description
Technical Field
The invention relates to the technical field of mobile terminals, in particular to a video recording method and device and electronic equipment.
Background
With the continuous development of mobile technology, the functions of the mobile terminal are more and more abundant, a user can perform various tasks such as watching videos, browsing information and playing games on the mobile terminal, and meanwhile, with the development of internet technology, the user can also perform social contact, payment and the like on the mobile terminal.
In the prior art, when a user watches videos or plays games by using a mobile terminal, some wonderful moments are expected to be recorded. For example: when watching a video live broadcast, a user encounters a favorite video clip, even a favorite anchor, and wants to record the video clip and watch the video clip repeatedly. However, in the prior art, due to the characteristics of live video, a user can watch the video only once, and the mobile terminal in the prior art cannot record video clips, so that the requirement of the user for watching the video clips repeatedly cannot be met.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
To this end, a first object of the present invention is to provide a video recording method to record video segments.
A second object of the present invention is to provide a video recording apparatus.
A third object of the invention is to propose an electronic device.
To achieve the above object, an embodiment of a first aspect of the present invention provides a video recording method, including:
in the process of playing a target video, respectively carrying out multiple times of picture conversion to obtain multiple pictures, and recording an audio stream of the target video;
synthesizing the plurality of pictures as frame images to obtain a video stream;
and synthesizing the video stream and the audio stream to obtain a recorded video segment.
Optionally, in a possible implementation manner of the embodiment of the present invention, in the process of playing the target video, performing multiple image conversions to obtain multiple images, and recording an audio stream of the target video, includes:
in the target video playing process, when detecting that a user executes the operation of starting recording, recording a system time point of the operation of starting recording as a starting time point;
starting from the initial time point, performing picture conversion on the target video, calculating a difference value between the time point of the picture conversion and the initial time point during each picture conversion, and taking the difference value as a time stamp of the picture obtained by the picture conversion;
recording the audio stream of the target video from the starting time point, and taking the difference value between the time point of playing the audio clip in the audio stream and the starting time point as the time stamp of the corresponding audio clip;
and when detecting that the user executes the operation of finishing the recording, stopping converting the picture and recording the audio stream of the target video.
Optionally, in a possible implementation manner of the embodiment of the present invention, the performing picture conversion on the target video includes:
when the target video is subjected to picture conversion, converting a target visual control preset in a screen including the target video into a control picture;
and synthesizing the control pictures to generate the pictures obtained by converting the pictures.
Optionally, in a possible implementation manner of the embodiment of the present invention, the synthesizing the plurality of pictures as frame images to obtain a video stream includes:
regarding each picture as a frame image, wherein the time stamp of the picture is the time stamp of the frame image;
and synthesizing each frame of image according to the time stamp of each frame of image to obtain the video stream.
Optionally, in a possible implementation manner of the embodiment of the present invention, the synthesizing the video stream and the audio stream to obtain a recorded video segment includes:
and when the video stream and the audio stream are synthesized, carrying out time axis synchronization on the time stamp of each audio clip in the audio stream and the time stamp of each frame image in the video stream to obtain the recorded video clip.
Optionally, in a possible implementation manner of the embodiment of the present invention, before stopping performing picture conversion and stopping recording the audio stream of the target video when the operation of ending recording is detected, the method further includes:
when detecting that the user executes the operation of recording suspension, suspending the picture conversion and suspending the recording of the audio stream of the target video;
when the operation of resuming the recording is detected, calculating the recording pause time;
continuing to convert the picture from the moment when the user is detected to execute recording resuming, and calculating the time point of picture conversion to respectively subtract the time length of recording suspension and the result obtained by subtracting the initial time point to obtain the time stamp of the picture obtained by the picture conversion at each time of picture conversion;
and recording the audio stream of the target video from the starting time point, calculating the time point of playing the audio segment in the audio stream, and respectively subtracting the recording pause time length and the result obtained by subtracting the starting time point to obtain the time stamp corresponding to the audio segment.
Optionally, in a possible implementation manner of the embodiment of the present invention, after the performing the multiple image conversions respectively to obtain multiple images, the method further includes:
adding preset image elements in the picture; the image element comprises a watermark picture.
Optionally, in a possible implementation manner of the embodiment of the present invention, the synthesizing the plurality of pictures as frame images to obtain a video stream includes:
adding a preset target picture to the plurality of pictures obtained by picture conversion;
and synthesizing the target picture and a plurality of pictures obtained by converting the pictures as different frame images to obtain the video stream.
Optionally, in a possible implementation manner of the embodiment of the present invention, the synthesizing the plurality of pictures as frame images to obtain a video stream includes:
correspondingly superposing a preset target picture on a picture obtained by picture conversion to obtain a synthesized picture; the transparency of the target picture is reduced along with the increase of the timestamp, and the transparency of the picture obtained by converting the picture is increased along with the increase of the timestamp;
and synthesizing the synthesized picture as a frame image to obtain a video stream.
According to the video recording method, during the process of playing the target video, the plurality of pictures are respectively converted for a plurality of times to obtain the plurality of pictures, the audio stream of the target video is recorded, the plurality of pictures are synthesized as frame images to obtain the video stream, and then the video stream and the audio stream are synthesized to obtain the recorded video clip, so that the recording of the target video is realized, the technical problem that the mobile terminal cannot record the video clip in the prior art is solved, and the requirement of a user for repeated watching is met through the embodiment of the invention.
To achieve the above object, a second embodiment of the present invention provides a video recording apparatus, including:
the playing module is used for respectively carrying out multiple times of picture conversion to obtain a plurality of pictures and recording the audio stream of the target video in the process of playing the target video;
the frame image module is used for synthesizing the plurality of pictures as frame images to obtain a video stream;
and the recording module is used for synthesizing the video stream and the audio stream to obtain a recorded video segment.
Optionally, in a possible implementation manner of the embodiment of the present invention, the playing module includes:
the first detection unit is used for recording a system time point of the operation of starting recording as a starting time point when the operation of starting recording executed by a user is detected in the process of playing the target video;
the picture conversion unit is used for converting the picture of the target video from the initial time point, calculating the difference value between the time point of the picture conversion and the initial time point during each picture conversion, and taking the difference value as the time stamp of the picture obtained by the picture conversion;
a recording unit, configured to record an audio stream of the target video from the start time point, and use a difference between a time point at which an audio clip in the audio stream is played and the start time point as a timestamp of a corresponding audio clip;
and the second detection unit is used for stopping picture conversion and recording the audio stream of the target video when detecting that the user executes the operation of finishing recording.
Optionally, in a possible implementation manner of the embodiment of the present invention, the picture conversion unit is specifically configured to:
when the target video is subjected to picture conversion, converting a target visual control preset in a screen including the target video into a control picture; and synthesizing the control pictures to generate the pictures obtained by converting the pictures.
Optionally, in a possible implementation manner of the embodiment of the present invention, the frame image module is specifically configured to:
regarding each picture as a frame image, wherein the time stamp of the picture is the time stamp of the frame image; and synthesizing each frame of image according to the time stamp of each frame of image to obtain the video stream.
Optionally, in a possible implementation manner of the embodiment of the present invention, the recording module is specifically configured to:
and when the video stream and the audio stream are synthesized, carrying out time axis synchronization on the time stamp of each audio clip in the audio stream and the time stamp of each frame image in the video stream to obtain the recorded video clip.
Optionally, in a possible implementation manner of the embodiment of the present invention, the playing module further includes:
the third detection unit is used for pausing the picture conversion and pausing the recording of the audio stream of the target video when the operation of pausing the recording executed by the user is detected;
the fourth detection unit is used for calculating the recording pause time length when the user is detected to execute the operation of resuming the recording; continuing to convert the picture from the moment when the recording is detected to be resumed, and calculating the time point of picture conversion to respectively subtract the time length for suspending the recording and the result obtained by subtracting the initial time point when the picture is converted every time to obtain the time stamp of the picture obtained by the picture conversion; and recording the audio stream of the target video from the starting time point, calculating the time point of playing the audio segment in the audio stream, and respectively subtracting the recording pause time length and the result obtained by subtracting the starting time point to obtain the time stamp corresponding to the audio segment.
Optionally, in a possible implementation manner of the embodiment of the present invention, the apparatus further includes:
the editing module is used for adding preset image elements in the picture; the image element comprises a watermark picture.
Optionally, in a possible implementation manner of the embodiment of the present invention, the frame image module includes:
the adding unit is used for adding a preset target picture to the plurality of pictures obtained by picture conversion;
and the first synthesis unit is used for synthesizing the target picture and a plurality of pictures obtained by converting the pictures as different frame images to obtain a video stream.
Optionally, in a possible implementation manner of the embodiment of the present invention, the frame image module includes:
the superposition unit is used for correspondingly superposing a preset target picture on a picture obtained by picture conversion to obtain a synthesized picture; the transparency of the target picture is reduced along with the increase of the timestamp, and the transparency of the picture obtained by converting the picture is increased along with the increase of the timestamp;
and the second synthesis unit is used for synthesizing the synthesized picture as a frame image to obtain a video stream.
According to the video recording device provided by the embodiment of the invention, in the process of playing the target video, multiple pictures are respectively converted for multiple times to obtain multiple pictures, the audio stream of the target video is recorded, the multiple pictures are synthesized as frame images to obtain the video stream, and then the video stream and the audio stream are synthesized to obtain the recorded video clip, so that the recording of the target video is realized, the technical problem that the mobile terminal cannot record the video clip in the prior art is solved, and the requirement of a user for repeatedly watching is met through the embodiment of the invention.
To achieve the above object, an embodiment of a third aspect of the present invention provides an electronic device, including: the device comprises a shell, a processor, a memory, a circuit board and a power circuit, wherein the circuit board is arranged in a space enclosed by the shell, and the processor and the memory are arranged on the circuit board; a power supply circuit for supplying power to each circuit or device of the electronic apparatus; the memory is used for storing executable program codes; the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, for executing the video recording method according to the first aspect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flowchart of a video recording method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of another video recording method according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of another video recording method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a video recording apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another video recording apparatus according to an embodiment of the present invention; and
fig. 6 is a schematic structural diagram of an embodiment of an electronic device according to the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A video recording method and apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a schematic flow diagram of a video recording method according to an embodiment of the present invention, where the method provided in this embodiment may be applied to video recording in a live broadcast scene, may also be applied to video recording in a game scene, and may also be applied to video recording in a video chat scene, and an application scene of video recording is not limited in this embodiment.
As shown in fig. 1, the video recording method includes the steps of:
Specifically, in the target video playing process, when an operation of starting recording is detected, a system time point at which the operation of starting recording is detected is recorded as a start time point. And carrying out picture conversion on the target video from the starting time point, calculating the difference value between the picture conversion time point and the starting time point when the picture is converted every time, and taking the difference value as the time stamp of the picture obtained by the picture conversion. And simultaneously, recording the audio stream of the target video from the starting time point, and taking the difference value between the time point of playing the audio clip in the audio stream and the starting time point as the time stamp of the corresponding audio clip. And when the operation of finishing recording is detected, stopping converting the picture and recording the audio stream of the target video.
And 102, synthesizing a plurality of pictures serving as frame images to obtain a video stream.
Specifically, for each picture, the picture is taken as a frame image, wherein the timestamp of the frame image is the timestamp of the picture. And synthesizing the frame images on a time axis of the video according to the sequence of the time stamps of the frame images to obtain the video stream.
And 103, synthesizing the video stream and the audio stream to obtain a recorded video segment.
Specifically, when the video stream and the audio stream are synthesized, time axis synchronization is performed on the time stamp of each audio clip in the audio stream and the time stamp of each frame image in the video stream, so that the recorded video clip is obtained.
As a possible implementation manner, the method provided by this embodiment may be executed by a mobile terminal based on an IOS operating platform, the IOS is a mobile operating system developed by apple, and is mainly used for mobile devices such as iPhone or iPad, and the IOS operating platform provides a method that can generate a specified visual control (UIView) and a contained sub UIView into one picture.
When the user specifies the UIView, the user may specify all uiviews in the screen on which the target video is displayed, or may specify some uiviews, which is not limited in this embodiment.
In the embodiment, a plurality of pictures are obtained by respectively performing picture conversion for a plurality of times in the process of playing the target video, the audio stream of the target video is recorded, the plurality of pictures are synthesized as frame images to obtain the video stream, and then the video stream and the audio stream are synthesized to obtain the recorded video clip, so that the recording of the target video is realized, the technical problem that the mobile terminal cannot record the video clip in the prior art is solved, and the requirement of a user for repeated watching is met through the embodiment of the invention.
To clearly illustrate the previous embodiment, the present embodiment provides another video recording method, where the method provided by the present embodiment can be applied in a live application scenario to record a live video, and fig. 2 is a schematic flow diagram of another video recording method provided by the embodiment of the present invention, and as shown in fig. 2, the video recording method includes the following steps:
Specifically, in the present embodiment, long-pressing the "record screen button" is an operation of starting recording, and when it is detected that the user long-pressing the "record screen button", the video recording task is started. Video recording task the video recording task starts a timer, so as to carry out a plurality of times of picture conversion and record the audio stream of the target video at a certain preset time interval. Since the timestamp of each frame image needs to be determined according to the system time point when the video is generated, the video recording task needs to record the current time point (startTime) of the system as the starting time point when the video recording task starts to be executed.
At step 202, a file is created for saving the recorded video segments.
Specifically, the video recording task creates a file in the file system of the mobile terminal, which is used to store the finally recorded video segment. Generally, the video recording task names the file by using a fixed name, so that as a possible implementation form, if the file with the name does not exist in the file system of the mobile terminal, a file is newly created in the file system. As another implementation form, the file with the name already exists in the file system of the mobile terminal, and after the existing file is deleted, a file with the name is newly built in the file system. After the file is created, the audio stream input source and the video stream input source of the target video are turned on, ready to start recording.
And 203, converting the target video to obtain a picture obtained by converting the picture, and merging the watermark picture to the picture obtained by converting the picture.
Specifically, the video recording task converts each specified visual control in the screen into a corresponding control picture, and then synthesizes each control picture into a picture obtained by converting the picture according to the relative position between each visual control. In this embodiment, after the picture is converted to obtain the picture, the picture may be edited, and the preset watermark picture is superimposed on the picture obtained by the current picture conversion. In this embodiment, the video source graphic identifier may be specifically used as the content of the watermark picture.
And 204, calculating a difference value between the time point of the image conversion and the initial time point, and taking the difference value as a time stamp of the image obtained by the image conversion.
Specifically, the video recording task records a time point of this picture conversion, that is, a difference (Δ vt ═ currentTime-startTime) between a current time point (currentTime) and a starting time point (startTime), and takes the difference (Δ vt) as a timestamp of the picture obtained by this picture conversion.
And step 205, adding the picture obtained by converting the picture as a frame of image in the video stream into the recorded video clip.
Specifically, the video recording task binds the picture obtained by the picture conversion and the timestamp (delta vt) of the picture, further converts the picture into a specific data type of an operating system, obtains a frame of image, and adds the frame of image into the recorded video clip in a video stream mode.
It should be noted that, during the recording process, steps 203 to 207 need to be repeatedly executed until the recording is finished or suspended.
And step 208, stopping picture conversion and recording the audio stream of the target video when detecting that the user executes the operation of finishing recording, and finishing recording.
In this embodiment, the operation of ending the recording is specifically to release the "recording screen button".
Specifically, when the user is detected to perform an operation of releasing the "record screen button", the timer is turned off, the audio stream input source is turned off, and the video recording task is ended.
And 209, synthesizing a preset target picture serving as a frame image with a frame image formed by a plurality of pictures obtained by converting the preset target picture into the picture to obtain a recorded video clip.
Wherein, the target picture can be an advertisement picture.
Specifically, there are at least two possible implementations of synthesizing a preset target picture as a frame image with a frame image formed by a plurality of pictures obtained by converting the preset target picture into the picture.
As a possible implementation manner, a preset target picture is correspondingly superposed on a picture obtained by picture conversion to obtain a synthesized picture; and the transparency of the target picture is reduced along with the increase of the timestamp, and the transparency of the picture obtained by converting the picture is increased along with the increase of the timestamp.
As another possible implementation manner, a preset target picture is added to the multiple pictures obtained by picture conversion, and the target picture and the multiple pictures obtained by picture conversion are synthesized as different frame images.
Generally, the target picture may be synthesized as the last few frames of images, that is, the target picture is inserted after the last picture or several pictures converted from the last picture. Thereby enabling the user to view the promoted advertising information after viewing the recorded video clip.
Further, after previewing, a control for sharing, saving or canceling the video clip is displayed, and a user selects a required operation from the sharing, saving or canceling.
In the embodiment, a plurality of pictures are obtained by respectively performing picture conversion for a plurality of times in the process of playing the target video, the audio stream of the target video is recorded, the plurality of pictures are synthesized as frame images to obtain the video stream, and then the video stream and the audio stream are synthesized to obtain the recorded video clip, so that the recording of the target video is realized, the technical problem that the mobile terminal cannot record the video clip in the prior art is solved, and the requirement of a user for repeated watching is met through the embodiment of the invention.
In order to clearly illustrate the previous embodiment, this embodiment further provides another video recording method, and fig. 3 is a schematic flow chart of the another video recording method provided in the embodiment of the present invention, where the method provided in this embodiment can implement breakpoint recording, and on the basis of the video recording method provided in fig. 2, after step 207, as shown in fig. 3, the method further includes:
Specifically, the operation of suspending recording in this embodiment may specifically be clicking a button of "suspend recording screen". When it is detected that the user clicks the "pause recording screen" button, the audio stream for performing the picture conversion and pausing the recording of the target video is paused, that is, the steps 203 to 207 are not performed any more, but the playing of the target video, that is, the playing of the live broadcast in the present embodiment, is not affected.
Specifically, the operation of resuming recording in this embodiment may specifically be clicking a "continue recording screen" button. And starting timing by the video recording task from the time when the user executes the operation of suspending recording, and taking the time length obtained by timing as the time length of suspending recording until the operation of clicking the button of 'continuing recording screen' is detected.
Specifically, the step of performing picture conversion on the target video is continuously performed from the moment when the user is detected to perform recording resuming. The calculation method of the time stamp is different from that of the previous embodiment, and specifically, when the video recording task performs each picture conversion, the time point of the picture conversion is calculated to respectively subtract the recording pause time and the initial time point, so as to obtain the time stamp of the picture obtained by the picture conversion.
Furthermore, the watermark picture can be merged to the picture obtained by converting the picture.
And step 304, adding the picture obtained by converting the picture as a frame of image in the video stream into the recorded video clip.
Specifically, when calculating the time stamp corresponding to the audio segment, the time point of playing the audio segment in the audio stream is subtracted by the recording pause time length and the result obtained by subtracting the start time point, so as to obtain the time stamp corresponding to the audio segment.
It should be noted that, during the recording process, steps 303 to 306 need to be repeatedly executed until the recording is finished or is suspended again. When the multiple times of pausing are performed, the length of time for pausing the recording is the total length of time for the multiple times of pausing.
In the embodiment, a plurality of pictures are obtained by respectively performing picture conversion for a plurality of times in the process of playing the target video, the audio stream of the target video is recorded, the plurality of pictures are synthesized as frame images to obtain the video stream, and then the video stream and the audio stream are synthesized to obtain the recorded video clip, so that the recording of the target video is realized, the technical problem that the mobile terminal cannot record the video clip in the prior art is solved, and the requirement of a user for repeated watching is met through the embodiment of the invention.
In order to implement the above embodiments, the present invention further provides a video recording apparatus.
Fig. 4 is a schematic structural diagram of a video recording apparatus according to an embodiment of the present invention, and as shown in fig. 4, the video recording apparatus includes: a play module 41, a frame image module 42 and a recording module 43.
The playing module 41 is configured to perform multiple picture conversions to obtain multiple pictures and record an audio stream of the target video in the process of playing the target video.
And a frame image module 42, configured to synthesize the multiple pictures as frame images to obtain a video stream.
And a recording module 43, configured to synthesize the video stream and the audio stream to obtain a recorded video segment.
Based on the foregoing embodiment, as a possible implementation manner, an embodiment of the present invention provides another video recording apparatus, fig. 5 is a schematic structural diagram of another video recording apparatus provided in an embodiment of the present invention, and on the basis of fig. 4, as shown in fig. 5, a playing module 41 includes: a first detection unit 411, a picture conversion unit 412, a recording unit 413 and a second detection unit 414.
The first detecting unit 411 is configured to, in the process of playing the target video, record, as a start time point, a system time point at which the operation of starting recording is detected when it is detected that the user performs the operation of starting recording.
The picture conversion unit 412 is configured to perform picture conversion on the target video from the starting time point, calculate a difference between the time point of the picture conversion and the starting time point during each picture conversion, and use the difference as a timestamp of a picture obtained by the current picture conversion.
A recording unit 413, configured to record an audio stream of the target video from the start time point, and use a difference between a time point of playing an audio clip in the audio stream and the start time point as a time stamp of the corresponding audio clip.
And a second detecting unit 414, configured to stop performing picture conversion and stop recording the audio stream of the target video when it is detected that the user performs an operation of ending recording.
The picture conversion unit 412 is specifically configured to: when the target video is subjected to picture conversion, converting a target visual control preset in a screen including the target video into a control picture; and synthesizing the control pictures to generate the pictures obtained by converting the pictures.
The frame image module 42 is specifically configured to: regarding each picture as a frame image, wherein the time stamp of the picture is the time stamp of the frame image; and synthesizing each frame of image according to the time stamp of each frame of image to obtain the video stream.
The recording module 43 is specifically configured to: and when the video stream and the audio stream are synthesized, carrying out time axis synchronization on the time stamp of each audio clip in the audio stream and the time stamp of each frame image in the video stream to obtain the recorded video clip.
Further, the playing module 41 further includes: a third detection unit 415 and a fourth detection unit 416.
A third detecting unit 415, configured to pause performing the picture conversion and recording the audio stream of the target video when detecting that the user performs the operation of pausing the recording.
A fourth detecting unit 416, configured to calculate a recording suspension duration when detecting that the user performs an operation of resuming recording; continuing to convert the picture from the moment when the recording is detected to be resumed, and calculating the time point of picture conversion to respectively subtract the time length for suspending the recording and the result obtained by subtracting the initial time point when the picture is converted every time to obtain the time stamp of the picture obtained by the picture conversion; and recording the audio stream of the target video from the starting time point, calculating the time point of playing the audio segment in the audio stream, and respectively subtracting the recording pause time length and the result obtained by subtracting the starting time point to obtain the time stamp corresponding to the audio segment.
Further, the video recording apparatus further includes: an editing module 44.
An editing module 44, configured to add a preset image element to the picture; the image element comprises a watermark picture.
Further, as a possible implementation manner, the frame image module 42 includes: an adding unit and a first synthesizing unit.
And the adding unit is used for adding a preset target picture to the plurality of pictures obtained by picture conversion.
And the first synthesis unit is used for synthesizing the target picture and a plurality of pictures obtained by converting the pictures as different frame images to obtain a video stream.
As another possible implementation, the frame image module 42 includes: a superposition unit and a second synthesis unit.
The superposition unit is used for correspondingly superposing a preset target picture on a picture obtained by picture conversion to obtain a synthesized picture; and the transparency of the target picture is reduced along with the increase of the timestamp, and the transparency of the picture obtained by converting the picture is increased along with the increase of the timestamp.
And the second synthesis unit is used for synthesizing the synthesized picture as a frame image to obtain a video stream.
It should be noted that the foregoing explanation of the embodiment of the video recording method is also applicable to the video recording apparatus of this embodiment, and is not repeated here.
In the embodiment of the invention, a plurality of pictures are obtained by respectively carrying out picture conversion for a plurality of times in the process of playing the target video, the audio stream of the target video is recorded, the video stream is obtained by synthesizing the video stream and the audio stream after the plurality of pictures are taken as frame images, so that the recorded video clip is obtained, the recording of the target video is realized, the technical problem that the mobile terminal cannot record the video clip in the prior art is solved, and the requirement of repeatedly watching by a user is met through the embodiment of the invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
An embodiment of the present invention further provides an electronic device, which includes the apparatus according to any of the foregoing embodiments.
Fig. 6 is a schematic structural diagram of an embodiment of an electronic device of the present invention, which can implement the processes of the embodiments shown in fig. 1 to 5 of the present invention, and as shown in fig. 6, the electronic device may include: the device comprises a shell 41, a processor 42, a memory 43, a circuit board 44 and a power circuit 45, wherein the circuit board 44 is arranged inside a space enclosed by the shell 41, and the processor 42 and the memory 43 are arranged on the circuit board 44; a power supply circuit 45 for supplying power to each circuit or device of the electronic apparatus; the memory 43 is used for storing executable program code; the processor 42 executes a program corresponding to the executable program code by reading the executable program code stored in the memory 43, so as to execute the video recording method according to any one of the foregoing embodiments.
The specific execution process of the above steps by the processor 42 and the steps further executed by the processor 42 by running the executable program code may refer to the description of the embodiment shown in fig. 1 to 5 of the present invention, and are not described herein again.
The electronic device exists in a variety of forms, including but not limited to:
(1) a mobile communication device: such devices are characterized by mobile communications capabilities and are primarily targeted at providing voice, data communications. Such terminals include: smart phones (e.g., iphones), multimedia phones, functional phones, and low-end phones, among others.
(2) Ultra mobile personal computer device: the equipment belongs to the category of personal computers, has calculation and processing functions and generally has the characteristic of mobile internet access. Such terminals include: PDA, MID, and UMPC devices, etc., such as ipads.
(3) A portable entertainment device: such devices can display and play multimedia content. This type of device comprises: audio, video players (e.g., ipods), handheld game consoles, electronic books, and smart toys and portable car navigation devices.
(4) A server: the device for providing the computing service comprises a processor, a hard disk, a memory, a system bus and the like, and the server is similar to a general computer architecture, but has higher requirements on processing capacity, stability, reliability, safety, expandability, manageability and the like because of the need of providing high-reliability service.
(5) And other electronic equipment with data interaction function.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (19)
1. A method for video recording, comprising the steps of:
in the process of playing a target video, respectively carrying out multiple times of picture conversion to obtain multiple pictures, and recording an audio stream of the target video; when a video is recorded, converting each specified visual control in a screen into a corresponding control picture, and synthesizing each control picture into one picture according to the relative position between each visual control;
synthesizing the plurality of pictures as frame images to obtain a video stream;
and synthesizing the video stream and the audio stream to obtain a recorded video segment.
2. The video recording method according to claim 1, wherein the performing a plurality of picture conversions to obtain a plurality of pictures and recording an audio stream of the target video during the playing of the target video comprises:
in the target video playing process, when detecting that a user executes the operation of starting recording, recording a system time point of the operation of starting recording as a starting time point;
starting from the initial time point, performing picture conversion on the target video, calculating a difference value between the time point of the picture conversion and the initial time point during each picture conversion, and taking the difference value as a time stamp of the picture obtained by the picture conversion;
recording the audio stream of the target video from the starting time point, and taking the difference value between the time point of playing the audio clip in the audio stream and the starting time point as the time stamp of the corresponding audio clip;
and when detecting that the user executes the operation of finishing the recording, stopping converting the picture and recording the audio stream of the target video.
3. The video recording method according to claim 2, wherein the performing picture conversion on the target video comprises:
when the target video is subjected to picture conversion, converting a target visual control preset in a screen including the target video into a control picture;
and synthesizing the control pictures to generate the pictures obtained by converting the pictures.
4. The video recording method according to claim 2, wherein said synthesizing the plurality of pictures as frame images to obtain a video stream comprises:
regarding each picture as a frame image, wherein the time stamp of the picture is the time stamp of the frame image;
and synthesizing each frame of image according to the time stamp of each frame of image to obtain the video stream.
5. The video recording method of claim 4, wherein the synthesizing the video stream and the audio stream into a recorded video segment comprises:
and when the video stream and the audio stream are synthesized, carrying out time axis synchronization on the time stamp of each audio clip in the audio stream and the time stamp of each frame image in the video stream to obtain the recorded video clip.
6. The video recording method according to claim 2, wherein before stopping the picture conversion and stopping the recording of the audio stream of the target video when the operation of ending the recording is detected, the method further comprises:
when detecting that the user executes the operation of recording suspension, suspending the picture conversion and suspending the recording of the audio stream of the target video;
when the operation of resuming the recording is detected, calculating the recording pause time;
continuing to convert the picture from the moment when the user is detected to execute recording resuming, and calculating the time point of picture conversion to respectively subtract the time length of recording suspension and the result obtained by subtracting the initial time point to obtain the time stamp of the picture obtained by the picture conversion at each time of picture conversion;
and recording the audio stream of the target video from the starting time point, calculating the time point of playing the audio segment in the audio stream, and respectively subtracting the recording pause time length and the result obtained by subtracting the starting time point to obtain the time stamp corresponding to the audio segment.
7. The video recording method according to any one of claims 1 to 6, wherein after the obtaining of the plurality of pictures by performing the plurality of picture conversions, the method further comprises:
adding preset image elements in the picture; the image element comprises a watermark picture.
8. The video recording method according to any of claims 1 to 6, wherein said synthesizing the plurality of pictures as frame images to obtain a video stream comprises:
adding a preset target picture to the plurality of pictures obtained by picture conversion;
and synthesizing the target picture and a plurality of pictures obtained by converting the pictures as different frame images to obtain the video stream.
9. The video recording method according to any of claims 1 to 6, wherein said synthesizing the plurality of pictures as frame images to obtain a video stream comprises:
correspondingly superposing a preset target picture on a picture obtained by picture conversion to obtain a synthesized picture; the transparency of the target picture is reduced along with the increase of the timestamp, and the transparency of the picture obtained by converting the picture is increased along with the increase of the timestamp;
and synthesizing the synthesized picture as a frame image to obtain a video stream.
10. A video recording apparatus, comprising:
the playing module is used for respectively carrying out picture conversion for multiple times to obtain multiple pictures in the process of playing the target video and recording the audio stream of the target video, wherein the pictures are obtained by converting specified visual controls in a screen into corresponding control pictures when the video is recorded, and then synthesizing the control pictures into one picture according to the relative position between the visual controls;
the frame image module is used for synthesizing the plurality of pictures as frame images to obtain a video stream;
and the recording module is used for synthesizing the video stream and the audio stream to obtain a recorded video segment.
11. The video recording device of claim 10, wherein the playback module comprises:
the first detection unit is used for recording a system time point of the operation of starting recording as a starting time point when the operation of starting recording executed by a user is detected in the process of playing the target video;
the picture conversion unit is used for converting the picture of the target video from the initial time point, calculating the difference value between the time point of the picture conversion and the initial time point during each picture conversion, and taking the difference value as the time stamp of the picture obtained by the picture conversion;
a recording unit, configured to record an audio stream of the target video from the start time point, and use a difference between a time point at which an audio clip in the audio stream is played and the start time point as a timestamp of a corresponding audio clip;
and the second detection unit is used for stopping picture conversion and recording the audio stream of the target video when detecting that the user executes the operation of finishing recording.
12. The video recording device according to claim 11, wherein the picture conversion unit is specifically configured to:
when the target video is subjected to picture conversion, converting a target visual control preset in a screen including the target video into a control picture; and synthesizing the control pictures to generate the pictures obtained by converting the pictures.
13. The video recording device of claim 11, wherein the frame image module is specifically configured to:
regarding each picture as a frame image, wherein the time stamp of the picture is the time stamp of the frame image; and synthesizing each frame of image according to the time stamp of each frame of image to obtain the video stream.
14. The video recording device according to claim 13, wherein the recording module is specifically configured to:
and when the video stream and the audio stream are synthesized, carrying out time axis synchronization on the time stamp of each audio clip in the audio stream and the time stamp of each frame image in the video stream to obtain the recorded video clip.
15. The video recording device of claim 11, wherein the playback module further comprises:
the third detection unit is used for pausing the picture conversion and pausing the recording of the audio stream of the target video when the operation of pausing the recording executed by the user is detected;
the fourth detection unit is used for calculating the recording pause time length when the user is detected to execute the operation of resuming the recording; continuing to convert the picture from the moment when the recording is detected to be resumed, and calculating the time point of picture conversion to respectively subtract the time length for suspending the recording and the result obtained by subtracting the initial time point when the picture is converted every time to obtain the time stamp of the picture obtained by the picture conversion; and recording the audio stream of the target video from the starting time point, calculating the time point of playing the audio segment in the audio stream, and respectively subtracting the recording pause time length and the result obtained by subtracting the starting time point to obtain the time stamp corresponding to the audio segment.
16. The video recording device according to any of claims 10-15, characterized in that the device further comprises:
the editing module is used for adding preset image elements in the picture; the image element comprises a watermark picture.
17. The video recording device according to any of claims 10-15, wherein said frame image module comprises:
the adding unit is used for adding a preset target picture to the plurality of pictures obtained by picture conversion;
and the first synthesis unit is used for synthesizing the target picture and a plurality of pictures obtained by converting the pictures as different frame images to obtain a video stream.
18. The video recording device according to any of claims 10-15, wherein said frame image module comprises:
the superposition unit is used for correspondingly superposing a preset target picture on a picture obtained by picture conversion to obtain a synthesized picture; the transparency of the target picture is reduced along with the increase of the timestamp, and the transparency of the picture obtained by converting the picture is increased along with the increase of the timestamp;
and the second synthesis unit is used for synthesizing the synthesized picture as a frame image to obtain a video stream.
19. An electronic device, comprising: the device comprises a shell, a processor, a memory, a circuit board and a power circuit, wherein the circuit board is arranged in a space enclosed by the shell, and the processor and the memory are arranged on the circuit board; a power supply circuit for supplying power to each circuit or device of the electronic apparatus; the memory is used for storing executable program codes; the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, for performing the video recording method of any one of claims 1 to 9.
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