CN113784169B - Video recording method and device with barrage - Google Patents
Video recording method and device with barrage Download PDFInfo
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- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
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- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
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- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
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- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
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Abstract
The application provides a video recording method and device with a barrage, wherein the method applied to a client comprises the following steps: obtaining each frame of bullet screen content layer picture of bullet screen video to be recorded in a target recording period according to a preset sampling rate; sending a synthesis request to a server; the composition request comprises a source address of a bullet screen video to be recorded, a target recording period, a preset sampling rate and bullet screen content layer pictures of each frame; receiving a source address of a target recorded video with a barrage returned by a server; the video with the barrage is synthesized by a server, and the video with the barrage of the barrage to be recorded is in a target recording period; that is, the video content and the barrage content can be recorded in the same video, so that the mixed recording of the original video content and the barrage content is realized, and the problem that the barrage content in the video cannot be recorded together in the existing method is solved; meanwhile, the bullet screen recording method at the server is realized, and the computing capacity of the client is reduced to the maximum extent.
Description
Technical Field
The invention relates to the technical field of video processing, in particular to a video recording method and device with a barrage.
Background
With the development of internet technology, particularly multimedia technology, the manner in which people watch videos has been shifted from traditional televisions to PCs (personal computer, computers) and mobile devices. In the process of watching the video, the user can perform friendly interaction with other users in a bullet screen release mode. After the bullet screen is released in the video, the released bullet screen content can be displayed on a video picture in real time, and when other users watch the video, the bullet screen content can be displayed through the Internet, so that the user experience is improved.
Along with the competition of the internet video platform for users, the eight immortals of the video platform are all in mind, and a great amount of manpower and material resources are input into each large video platform, such as an love art, a cool, a vacation video and the like, in order to attract users. And sharing the video part content at the client side also becomes the standard of each large video website. However, each platform only supports recording original video content, and can not record bullet screen content in video together.
Disclosure of Invention
In this regard, the application provides a video recording method and device with a bullet screen, so as to solve the problem that currently, each platform only supports recording original video content and cannot record bullet screen content in video together.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the first aspect of the invention discloses a video recording method with a barrage, which is applied to a client, and comprises the following steps:
determining a target recording period of bullet screen video to be recorded; the target recording time period is a time period corresponding to the video with the barrage to be recorded, which is needed by a user to record the barrage video to be recorded;
sampling the barrage content layer of the barrage video to be recorded according to a preset sampling rate to obtain each frame of barrage content layer picture of the barrage video to be recorded in the target recording period;
sending a synthesis request to a server; the composition request comprises a source address of the barrage video to be recorded, a target recording period of the barrage video to be recorded, the preset sampling rate and the barrage content layer pictures of each frame;
receiving a source address of a target recording tape barrage video returned by the server; the target video with the barrage is synthesized by the server, and the video with the barrage of the barrage to be recorded is in the target recording period.
Optionally, in the video recording method with a barrage, determining a target recording period of a barrage video to be recorded includes:
Acquiring and responding to the time corresponding to the sharing operation of the user on the bullet screen video to be recorded, and taking the acquired time as the starting time of the bullet screen video to be recorded;
judging whether the time corresponding to the recording operation of ending the bullet screen video to be recorded by the user is acquired and responded or not;
if judging that the time corresponding to the ending recording operation of the user on the bullet screen video to be recorded is obtained and received, taking the obtained time as the ending time of the bullet screen video to be recorded;
if the fact that the time corresponding to the ending recording operation of the user on the bullet screen video to be recorded is not obtained is judged, the time when the bullet screen video to be recorded reaches the preset upper recording limit is taken as the ending time of the bullet screen video to be recorded;
and determining a target recording period of the bullet screen video to be recorded based on the starting time of the bullet screen video to be recorded and the ending time of the bullet screen video to be recorded.
Optionally, in the video recording method with a barrage, sampling the barrage content layer of the barrage video to be recorded according to a preset sampling rate to obtain each frame of barrage content layer picture of the barrage video to be recorded in the target recording period, including:
Creating a barrage acquisition class for recording a barrage content layer of the barrage video to be recorded;
reading the structure and style information of a barrage content layer in the barrage video to be recorded according to the preset sampling rate by utilizing the barrage acquisition class; wherein the structure and style information includes: at least one of position, color, element size;
and constructing corresponding screenshot for the structure information and the style information of the barrage content layer read by each sampling in sequence to obtain each frame of barrage content layer picture of the barrage video to be recorded in the target recording period.
Optionally, in the video recording method with a barrage, after receiving the source address of the video with the barrage of the target recording returned by the server, the method further includes:
and receiving and responding to the playing operation of the user on the target recording tape barrage video, and/or receiving and responding to the sharing operation of the user on the target recording tape barrage video.
The second aspect of the invention discloses a video recording method with a barrage, which is applied to a server, and comprises the following steps:
receiving a synthesis request sent by a client; the synthesis request comprises a source address of the bullet screen video to be recorded, a target recording period of the bullet screen video to be recorded, a preset sampling rate and bullet screen content layer pictures of each frame;
Synthesizing a target recording video with a barrage according to the source address of the barrage video to be recorded, the target recording period of the barrage video to be recorded, the preset sampling rate and the barrage content layer pictures of each frame; the target recording video with the barrage is the video with the barrage of the video to be recorded in the target recording period;
and returning the source address of the target recording tape barrage video to the client.
Optionally, in the video recording method with a barrage, synthesizing a target recording video with a barrage according to a source address of the video with the barrage to be recorded, a target recording period of the video with the barrage to be recorded, a preset sampling rate and each frame of barrage content layer picture, including:
determining a target recording video segment of the bullet screen video to be recorded according to the source address of the bullet screen video to be recorded and the target recording period of the bullet screen video to be recorded;
and merging the bullet screen content layer pictures of each frame into the target recording video segment in sequence based on the preset sampling rate to obtain the bullet screen video of the target recording band.
The third aspect of the present invention discloses a video recording apparatus with a barrage, applied to a client, the apparatus comprising:
The determining unit is used for determining a target recording period of the bullet screen video to be recorded; the target recording time period is a time period corresponding to the video with the barrage to be recorded, which is needed by a user to record the barrage video to be recorded;
the sampling unit is used for sampling the barrage content layer of the barrage video to be recorded according to a preset sampling rate to obtain each frame barrage content layer picture of the barrage video to be recorded in the target recording period;
a request sending unit, configured to send a composition request to a server; the composition request comprises a source address of the barrage video to be recorded, a target recording period of the barrage video to be recorded, the preset sampling rate and the barrage content layer pictures of each frame;
the video receiving unit is used for receiving the source address of the bullet screen video of the target recording tape; the target video with the barrage is synthesized by the server, and the video with the barrage of the barrage to be recorded is in the target recording period.
Optionally, in the video recording apparatus with a barrage, the sampling unit is specifically configured to:
creating a barrage acquisition class for recording a barrage content layer of the barrage video to be recorded;
Reading the structure and style information of a barrage content layer in the barrage video to be recorded according to the preset sampling rate by utilizing the barrage acquisition class; wherein the structure and style information includes: at least one of position, color, element size;
and constructing corresponding screenshot for the structure information and the style information of the barrage content layer read by each sampling in sequence to obtain each frame of barrage content layer picture of the barrage video to be recorded in the target recording period.
The fourth aspect of the present invention discloses a video recording apparatus with a barrage, applied to a server, the apparatus comprising:
the request receiving unit is used for receiving the synthesis request sent by the client; the synthesis request comprises a source address of the bullet screen video to be recorded, a target recording period of the bullet screen video to be recorded, a preset sampling rate and bullet screen content layer pictures of each frame;
the video synthesis unit is used for synthesizing a target recording video with a barrage according to the source address of the barrage video to be recorded, the target recording time period of the barrage video to be recorded, the preset sampling rate and the barrage content layer pictures of each frame; the target recording video with the barrage is the video with the barrage of the video to be recorded in the target recording period;
And the video returning unit is used for returning the source address of the target recording tape barrage video to the client.
Optionally, in the video recording apparatus with a barrage, the video synthesis unit is specifically configured to:
determining a target recording video segment of the bullet screen video to be recorded according to the source address of the bullet screen video to be recorded and the target recording period of the bullet screen video to be recorded;
and merging the bullet screen content layer pictures of each frame into the target recording video segment in sequence according to the preset sampling rate to obtain the bullet screen video of the target recording band.
The video recording method with the bullet screen provided by the invention comprises the following steps of: determining a target recording period of bullet screen video to be recorded; the target recording time period is a time interval corresponding to the video with the barrage to be recorded by a user; sampling the barrage content layer of the barrage video to be recorded according to a preset sampling rate to obtain each frame of barrage content layer picture of the barrage video to be recorded in a target recording period; sending a synthesis request to a server; the composition request comprises a source address of the bullet screen video to be recorded, a target recording period of the bullet screen video to be recorded, a preset sampling rate and bullet screen content layer pictures of each frame; receiving a source address of a target recorded video with a barrage returned by a server; the video with the bullet screen is synthesized by a server, and the video with the bullet screen of the bullet screen to be recorded is in a target recording period; the method comprises the steps that each frame of bullet screen content layer picture in a bullet screen content layer in bullet screen videos to be recorded can be obtained through client sampling, then the sampled bullet screen content layer pictures of each frame are synthesized with original videos by a server to obtain a source address of a target recorded bullet screen video, video content and bullet screen content are recorded in the same video, mixed recording of the original video content and bullet screen content is achieved, and the problem that currently each platform only supports recording of the original video content and cannot record bullet screen content in the video together is solved; meanwhile, the bullet screen recording method at the server is realized, and the computing capacity of the client is reduced to the maximum extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a video recording method with a barrage according to an embodiment of the present application;
fig. 2 is a flowchart for determining a target recording period according to an embodiment of the present application;
FIG. 3 is a flowchart of obtaining a bullet screen content layer picture according to an embodiment of the present disclosure;
FIG. 4 is a block diagram of an HTML DOM hierarchy provided by an embodiment of the present application;
fig. 5 is a schematic diagram of video playing logic according to an embodiment of the present application;
fig. 6 is a flowchart of another video recording method with a bullet screen according to an embodiment of the present application;
fig. 7 is a flowchart of synthesizing a video of a target recording tape barrage according to an embodiment of the present application;
fig. 8 is a schematic diagram of an interaction flow of a video recording method with a bullet screen according to an embodiment of the present application;
Fig. 9 is a schematic structural diagram of a video recording apparatus with a barrage according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of another video recording apparatus with a bullet screen according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the application provides a video recording method with a bullet screen, which is applied to a client to solve the problem that currently, each platform only supports recording original video content and cannot record bullet screen content in video together.
Referring to fig. 1, in conjunction with fig. 8, the method may include the steps of:
s100, determining a target recording period of the bullet screen video to be recorded.
The target recording time period is a time interval corresponding to a video with a barrage, which is needed by a user to record the barrage video to be recorded.
The video with the bullet screen to be recorded can be the video which is currently played by the client and provided with the bullet screen, or can be the video which is required to be recorded by the user, and the video with the bullet screen can be determined according to the specific application environment and the user requirement, so that the bullet screen video recording method and device are not limited specifically and belong to the protection scope of the application.
In practical application, the specific process of executing step S100 to determine the target recording period of the bullet screen video to be recorded may refer to fig. 2, and may include the following steps:
and S200, acquiring and responding to the time corresponding to the sharing operation of the bullet screen video to be recorded by the user, and taking the acquired time as the starting time of the bullet screen video to be recorded.
The sharing operation of the bullet screen video to be recorded can be that the user clicks a video sharing control in the client. In practical application, the user can click a barrage recording control in the client as the starting time of the barrage video to be recorded; the application is not particularly limited according to the specific application environment and the user requirement, and the application belongs to the protection scope of the application.
S202, judging whether the time corresponding to the recording operation of ending the bullet screen video to be recorded is acquired and responded by a user.
The ending recording operation of the bullet video to be recorded can be that the user clicks an ending recording button in the client or clicks a pause playing button in the client.
If it is determined that the time corresponding to the recording operation of ending the bullet screen video to be recorded is obtained and received and responded by the user, executing step S204; if it is determined that the time corresponding to the recording operation of ending the bullet screen video to be recorded is not obtained and responded to the user, step S206 is executed.
S204, taking the acquired time as the ending time of the bullet screen video to be recorded.
S206, taking the time when the bullet screen video to be recorded reaches the preset upper recording limit as the ending time of the bullet screen video to be recorded.
The preset upper recording limit may be preset, allowing for a maximum duration of the video-on-screen to be recorded. For example, the preset upper recording limit may be 30 seconds; of course, the value of the preset upper limit can be determined by self according to the specific application environment and the user requirement, and the value belongs to the protection scope of the application.
S208, determining a target recording period of the bullet screen video to be recorded based on the starting time of the bullet screen video to be recorded and the ending time of the bullet screen video to be recorded.
In practical application, the start time of the bullet screen video to be recorded can be used as a recording start point, and the end time of the bullet screen video to be recorded can be used as a recording end point, so that the target recording period of the bullet screen video to be recorded can be determined.
And S102, sampling the barrage content layer of the barrage video to be recorded according to a preset sampling rate to obtain each frame of barrage content layer picture of the barrage video to be recorded in the target recording period.
The bullet screen content layer picture can be PNG (Portable Network Graphic Format, image file storage format) picture with a transparent channel (alpha channel); of course, GIF (Graphics Interchange Format, image interchange format) pictures are also possible. The specific format of the bullet screen content layer picture is not limited, and the bullet screen content layer picture belongs to the protection scope of the application.
In practical application, the preset sampling rate can be determined according to the specific application environment and the user requirement; for example, it may be 25 frames/second, i.e., 25 bullet screen content layer pictures are taken every second; of course, the method is not limited thereto, and no matter what value is specifically taken by the preset sampling rate, the method belongs to the protection scope of the application.
In practical application, the step S102 is executed to sample the barrage content layer of the barrage video to be recorded according to the preset sampling rate, so as to obtain a specific process of each frame of barrage content layer picture of the barrage video to be recorded in the target recording period, see fig. 3, and may include the following steps:
S300, creating a barrage acquisition class for recording a barrage content layer of a barrage video to be recorded.
When receiving and responding to the sharing operation of the user to-be-recorded barrage video, creating a barrage acquisition class of a barrage content layer capable of recording the to-be-recorded barrage video at the client.
It should be noted that, the specific manner of creating the barrage acquisition class may be determined according to the specific application environment and the user requirement, and the application is not limited and belongs to the protection scope of the application.
S302, reading the structure and style information of a barrage content layer in the barrage video to be recorded according to a preset sampling rate by utilizing the barrage acquisition class.
Wherein the structure and style information includes: at least one of location, color, element size.
S304, constructing corresponding screenshot for the structure and style information of the bullet screen content layer read by each sampling in sequence, and obtaining each frame of bullet screen content layer picture of the bullet screen video to be recorded in the target recording period.
In practical application, corresponding screenshot can be constructed for the structure information and the style information of the barrage content layer read by each sampling in the canvas in sequence, so as to obtain each frame of barrage content layer picture of the barrage video to be recorded in the target recording period.
Taking the HTML DOM hierarchy structure shown in fig. 4 as an example, A, B, C, D is respectively four div elements in the HTML DOM hierarchy, and the order of the hierarchy is: b < C < D < A; a is the uppermost layer. In particular, corresponding to the video playing logic shown in fig. 5, a represents a barrage content layer (i.e., the floating text in fig. 5); d represents the video rendering layer (i.e., the picture of the person behind the floating text in fig. 5).
In practical application, the structure and style information of rendered DOM elements can be read, then a corresponding screenshot is constructed based on the read information, the screenshot is presented in canvas (canvas), and corresponding PNG pictures are output, so that the bullet screen content layer pictures of each frame of bullet screen video to be recorded in a target recording period are realized.
S104, sending a synthesis request to the server.
The composition request comprises a source address of the barrage video to be recorded, a target recording period of the barrage video to be recorded, a preset sampling rate and barrage content layer pictures of each frame.
Specifically, the source address of the bullet screen video to be recorded generally refers to the storage address of the bullet screen video to be recorded, and the corresponding bullet screen video to be recorded can be found through the address.
After the server receives the synthesizing request, a video synthesizing program of the server can be triggered to control the server to synthesize the video with the barrage of the video to be recorded in the target recording period by using the barrage content layer picture.
In practical application, the specific mode of transmitting each frame of barrage content layer picture contained in the composition request to the server may be any one of the following modes:
mode 1: and sequentially sending each obtained bullet screen content layer picture to the server.
It should be noted that, in the mode 1, the client only needs to temporarily store the bullet screen content layer pictures, and does not need to construct a folder for storing all bullet screen content layer pictures in the target recording period, and also does not need to store each frame of bullet screen content layer pictures obtained each time according to the sequence.
Mode 2: and storing each frame of bullet screen content layer pictures obtained each time according to the sequence to obtain all bullet screen content layer pictures, and uniformly transmitting all bullet screen content layer pictures to a server.
It should be noted that, in the mode 2, the client needs to construct a folder of all the bullet screen content layer pictures stored in the target recording period, and sequentially store the bullet screen content layer pictures obtained each time according to the sequence, obtain a bullet screen content layer picture list, and then uniformly send all the bullet screen content pictures obtained in the target recording period to the server.
It should be further noted that, in the case of mode 2, the data structure stored by the client may be as follows:
the video file address refers to the source address of the bullet screen video to be recorded; the video time point for starting recording refers to the starting time of the bullet screen video to be recorded; the recording duration refers to the target recording period of the bullet screen video to be recorded; the sampling rate refers to the preset sampling rate; the bullet screen layer picture list refers to the bullet screen content layer picture list.
S106, receiving a source address of the target recording tape barrage video returned by the server.
The target video with the barrage is synthesized by the server according to the source address of the video with the barrage to be recorded, the target recording time period of the video with the barrage to be recorded, the preset sampling rate and the barrage content layer pictures of each frame.
Based on the principle, when the video recording method with the barrage is applied to a client, each frame barrage content layer picture in the barrage content layer in the barrage video to be recorded can be obtained through the client by sampling, then the sampled frames of barrage content layer pictures and the original video are synthesized by the server to obtain the source address of the target recording video with the barrage, the video content and the barrage content are recorded into the same video, the mixed recording of the original video content and the barrage content is realized, and the problem that the barrage content in the video cannot be recorded together only by supporting the original video content on each platform at present is solved; meanwhile, the bullet screen recording method at the server is realized, and the computing capacity of the client is reduced to the maximum extent.
In the video recording method with the barrage, the client only needs to sample the barrage content layer according to the preset sampling rate and sends the sampling result to the server, so that the difficulty of recording the video with the barrage by the client is effectively reduced; in addition, the service end is utilized to synthesize the bullet screen content layer pictures of each frame obtained by sampling with the original video, the time point, the coordinates, the color and the like of the bullet screen content layer are not required to be calculated, the requirement on the calculation resources of the client is low, the sharing failure rate caused by insufficient resources of user equipment can be reduced, the problem that the bullet screen video with the bullet screen cannot be recorded and shared due to uneven resources of the user computer is solved, smooth playing is achieved, and the user experience is optimized; meanwhile, the playing method of the user is enriched, and the coverage rate of the product is improved.
Optionally, in another embodiment provided in the present application, after executing step S106 to receive the source address of the target recording tape bullet video returned by the server, the method further includes:
and receiving and responding to the playing operation of the user on the target recording tape barrage video and/or receiving and responding to the sharing operation of the user on the target recording tape barrage video.
In practical application, the client can play the target recording video bullet screen after receiving and responding to the play operation of the user on the target recording video bullet screen according to the source address of the target recording video bullet screen returned by the server; and after receiving and responding to the sharing operation of the user on the target video tape barrage, sharing the target video tape barrage.
The method includes the steps that a target recording tape barrage video is selected to be played and/or shared according to specific application environments and user requirements; and, the sequence of playing the video of the target recording tape barrage and/or sharing the video of the target recording tape barrage can be determined by the user according to the specific application environment and the user requirement, and the video playing method and device are not particularly limited and belong to the protection scope of the application.
Optionally, another embodiment of the present application further provides a video recording method with a barrage, which is applied to a server, please refer to fig. 6, in combination with fig. 8, the method may include the following steps:
s400, receiving a synthesis request sent by the client.
The composition request comprises a source address of the barrage video to be recorded, a target recording period of the barrage video to be recorded, a preset sampling rate and barrage content layer pictures of each frame.
In practical application, if each frame of barrage content layer picture in the composition request is sent after each frame of barrage content layer picture is obtained by the client, the server side needs to organize a picture list for each frame of barrage content layer picture according to the sequence of each received frame of barrage content layer picture, and stores the picture list.
If the bullet screen content layer pictures of each frame in the composition request are packaged and uniformly transmitted after the client side obtains all bullet screen content layer pictures, the server side only needs to construct corresponding storage files and store all bullet screen content layer pictures which are packaged and transmitted,
s402, synthesizing a target recording tape barrage video according to a source address of the barrage video to be recorded, a target recording period of the barrage video to be recorded, a preset sampling rate and barrage content layer pictures of each frame.
The target recording video with the barrage is a video with the barrage of the video to be recorded in a target recording period.
In practical application, step S402 is executed, and a specific process of synthesizing a target recording video with a barrage according to a source address of the barrage to be recorded, a target recording period of the barrage to be recorded, a preset sampling rate, and a barrage content layer picture of each frame may be referred to as fig. 7, and may include the following steps:
s500, determining a target recording video segment of the bullet screen video to be recorded according to the source address of the bullet screen video to be recorded and the target recording time period of the bullet screen video to be recorded.
In practical application, after receiving the composition request, the server determines the bullet screen video to be recorded according to the source address of the bullet screen video to be recorded contained in the composition request, encodes the bullet screen video to be recorded, and precisely cuts the bullet screen video to be recorded according to the target recording period of the bullet screen video to be recorded to obtain the target recording video segment of the bullet screen video to be recorded.
S502, merging the bullet screen content layer pictures of each frame into the target recording video segment in sequence based on a preset sampling rate, and merging to obtain the bullet screen video of the target recording tape.
In practical application, each frame of bullet screen content layer picture and the target recording video segment can be combined in sequence according to the sequencing of bullet screen content layer pictures in the bullet screen content layer picture list, so that the target recording video with bullet screen is obtained.
S404, returning the source address of the target recording tape barrage video to the client.
In practical applications, after obtaining the target recording video, the server may send the source address of the target recording video to the client, so that the client may play the target recording video and/or share the target recording video through the source address of the target recording video.
Based on the above principle, when the video recording method with the barrage is applied to the server, after the client sends the synthesis request, the target recording video with the barrage of the barrage video to be recorded in the target recording period can be obtained through synthesis according to the data contained in the synthesis request, so that the mixed recording of the original video content and the barrage content is realized, and the problem that the barrage content in the video cannot be recorded together only by supporting recording the original video content by each current platform is solved.
It should be noted that, the audio and video format of the bullet screen video to be recorded by the server is not limited in particular, and any format of bullet screen video to be recorded does not affect the specific implementation of the application. In addition, the method and the device can adjust related parameters of the shared video, such as code rate, resolution, frame rate and the like, or add copyright marks such as watermarks and the like in the shared video according to actual operation requirements so as to adapt to operation scenes with different requirements.
It should be further noted that fig. 8 is an interaction flow diagram of the video recording method with bullet screen provided by the present application in combination with the interaction process of the client and the server, so as to facilitate understanding of the video recording method with bullet screen.
Based on the method provided by the embodiment, corresponding embodiments are provided for the content of the embodiment, and for convenience of understanding, the following implementation process is specific:
1. and the user starts the video sharing module at the client.
2. A play flow is started, the current video start time of the user is recorded, the Duration of the video to be intercepted (which is generally limited to 30 seconds), and the current video is played from the video start time in real time.
3. Starting a bullet screen recording module, recording and outputting PNG format pictures of Alpha channels to a video bullet screen layer TextView in real time according to a set sampling rate samplingRate, and uploading the obtained PNG format pictures to a cloud computing service node so that the cloud computing service node organizes a picture list into an image List according to a sequence.
4. And requesting the information such as the currently played video URL, videoStartTime, duration, imageList, samplingRate to the cloud processing interface.
5. And the cloud service processing program receives the data and effectively organizes the data, then merges the bullet screen PNG format picture sequence onto the video, and returns the cloud URL address with the bullet screen video to the client.
6. And the client receives the returned result, starts the playing flow to play the video with the barrage and waits for the sharing of the user.
It should be noted that the above example is only an example of a situation of the application in practical application, and the specific application example of the application in practical application is not limited to the above, as long as the video recording method with barrage provided by the application is all in the protection scope of the application.
In combination with the video recording method with a barrage provided in the embodiment of the present application, the embodiment of the present application further provides a video recording device with a barrage, which is applied to a client, please refer to fig. 9, the device may include:
a determining unit 100, configured to determine a target recording period of a bullet screen video to be recorded; the target recording time period is a time period corresponding to the video with the barrage to be recorded, which is needed by the user to record the barrage video to be recorded.
The sampling unit 102 is configured to sample the barrage content layer of the barrage video to be recorded according to a preset sampling rate, so as to obtain each frame of barrage content layer picture of the barrage video to be recorded in the target recording period.
A request sending unit 104, configured to send a composition request to a server; the composition request comprises a source address of the barrage video to be recorded, a target recording period of the barrage video to be recorded, a preset sampling rate and the barrage content layer pictures of each frame.
The video receiving unit 106 is configured to receive a source address of the video with the bullet screen of the target recording returned by the server; the target recording video with the barrage is synthesized by the server, and the video with the barrage of the barrage to be recorded is in the target recording period.
Alternatively, in practical application, the determining unit 100 may be specifically configured to:
and acquiring and responding to the time corresponding to the sharing operation of the bullet screen video to be recorded by the user, and taking the acquired time as the starting time of the bullet screen video to be recorded.
And judging whether the time corresponding to the recording operation ending the bullet screen video to be recorded is acquired, received and responded by the user.
And if the time corresponding to the ending recording operation of the bullet screen video to be recorded is obtained and responded by the user, taking the obtained time as the ending time of the bullet screen video to be recorded.
And if the time corresponding to the ending recording operation of the bullet screen video to be recorded is not obtained, which is received and responded by the user, taking the time when the bullet screen video to be recorded reaches the preset upper recording limit as the ending time of the bullet screen video to be recorded.
And determining a target recording period of the bullet screen video to be recorded based on the starting time of the bullet screen video to be recorded and the ending time of the bullet screen video to be recorded.
Alternatively, in practical applications, the sampling unit 102 may be specifically configured to:
and creating a bullet screen acquisition class for recording a bullet screen content layer of the bullet screen video to be recorded.
Reading the structure and style information of a barrage content layer in a barrage video to be recorded according to a preset sampling rate by using barrage acquisition types; wherein the structure and style information includes: at least one of location, color, element size.
And constructing corresponding screenshot for the structure information and the style information of the barrage content layer read by each sampling in sequence to obtain each frame of barrage content layer picture of the barrage video to be recorded in the target recording period.
Optionally, in practical application, the video recording device with the barrage is further specifically configured to:
and receiving and responding to the playing operation of the user on the target recording video barrage, and/or receiving and responding to the sharing operation of the user on the target recording video barrage.
An embodiment of the present application provides a video recording apparatus with a barrage, which is applied to a server, please refer to fig. 10, and the apparatus may include:
a request receiving unit 200, configured to receive a composition request sent by a client; the composition request comprises a source address of the barrage video to be recorded, a target recording period of the barrage video to be recorded, a preset sampling rate and each frame of barrage content layer picture.
The video synthesis unit 202 is configured to synthesize a target recording video with a barrage according to a source address of the barrage video to be recorded, a target recording period of the barrage video to be recorded, a preset sampling rate, and each frame of barrage content layer picture; the target recording video with the barrage is a video with the barrage of the video to be recorded in a target recording period.
And the video returning unit 204 is configured to return the source address of the target recording tape bullet video to the client.
In practical application, the video synthesis unit 202 is specifically configured to:
and determining the target recording video segment of the bullet screen video to be recorded according to the source address of the bullet screen video to be recorded and the target recording time period of the bullet screen video to be recorded.
And merging the bullet screen content layer pictures of each frame into the target recording video segment in sequence according to the preset sampling rate to obtain the bullet screen video of the target recording band.
The specific working principle of the video recording apparatus with a bullet screen applied to a client shown in fig. 9 may refer to each step executed by the client in the video recording apparatus with a bullet screen provided in the embodiment of the present application; the specific working principle of the video recording apparatus with a bullet screen applied to the server shown in fig. 10 may refer to each step executed by the server in the video recording apparatus with a bullet screen provided in the embodiment of the present application, which is not described herein in detail.
The video recording device with barrage provided by the application, wherein the device applied to the client side comprises: a determining unit 100, configured to determine a target recording period of a bullet screen video to be recorded; the target recording time period is a time interval corresponding to the video with the barrage to be recorded by a user; the sampling unit 102 is configured to sample a barrage content layer of a barrage video to be recorded according to a preset sampling rate, so as to obtain a barrage content layer picture of each frame of the barrage video to be recorded in a target recording period; a request sending unit 104, configured to send a composition request to a server; the composition request comprises a source address of the bullet screen video to be recorded, a target recording period of the bullet screen video to be recorded, a preset sampling rate and bullet screen content layer pictures of each frame; a video receiving unit 106, configured to receive a source address of a video of a target recording tape bullet screen; the target recording video with the barrage is synthesized by a server, and the video with the barrage of the barrage to be recorded is in the target recording period. According to the scheme, each frame of bullet screen content layer picture in the bullet screen content layer in the bullet screen video to be recorded can be obtained through client sampling, then the sampled frames of bullet screen content layer picture and the original video are synthesized by the server to obtain the source address of the target recorded bullet screen video, the video content and the bullet screen content are recorded in the same video, the mixed recording of the original video content and the bullet screen content is realized, and the problem that the bullet screen content in the video cannot be recorded together only by supporting recording the original video content by each current platform is solved; meanwhile, the bullet screen recording method at the server is realized, and the computing capacity of the client is reduced to the maximum extent.
The embodiment of the application also provides a computer storage medium, which is used for storing a computer program, and the computer program is particularly used for realizing the video recording method with the bullet screen applied to the client side, or is particularly used for realizing the video recording method with the bullet screen applied to the server side.
The embodiment of the application further provides an electronic device, please refer to fig. 11, including: a memory 601 and a processor 602.
Wherein the memory 601 is used for storing a computer program.
The processor 602 is configured to execute the computer program, and specifically configured to implement the video recording method with a bullet screen applied to a client provided in the embodiment of the present application, or implement the video recording method with a bullet screen applied to a server provided in the present application.
Features described in the embodiments in this specification may be replaced or combined, and identical and similar parts of the embodiments may be referred to each other, where each embodiment focuses on differences from other embodiments. In particular, for a system or system embodiment, since it is substantially similar to a method embodiment, the description is relatively simple, with reference to the description of the method embodiment being made in part. The systems and system embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (8)
1. A video recording method with a bullet screen, which is applied to a client, the method comprising:
determining a target recording period of bullet screen video to be recorded; the target recording time period is a time period corresponding to the video with the barrage to be recorded, which is needed by a user to record the barrage video to be recorded; the bullet screen video to be recorded is a video with a bullet screen which is currently played by a client; the preset sampling rate represents the number of bullet screen content layer pictures acquired every second;
Sampling the barrage content layer of the barrage video to be recorded according to a preset sampling rate to obtain each frame of barrage content layer picture of the barrage video to be recorded in the target recording period;
sending a synthesis request to a server; the composition request comprises a source address of the barrage video to be recorded, a target recording period of the barrage video to be recorded, the preset sampling rate and the barrage content layer pictures of each frame;
receiving a source address of a target recording tape barrage video returned by the server; the target video with the barrage is synthesized by the server, and the video with the barrage of the video to be recorded is in the target recording period;
the method for obtaining the bullet screen content layer picture of each frame of bullet screen video to be recorded in the target recording period comprises the following steps:
creating a barrage acquisition class for recording a barrage content layer of the barrage video to be recorded;
reading the structure and style information of a barrage content layer in the DOM level of the barrage video to be recorded according to the preset sampling rate by utilizing the barrage acquisition class; wherein the structure and style information includes: at least one of position, color, element size;
And sequentially displaying the structure and style information of the barrage content layer read by each sampling in canvas to obtain the barrage content layer picture of each frame of barrage video to be recorded in the target recording period.
2. The video recording method with a bullet screen of claim 1 wherein determining a target recording period for which bullet screen video is to be recorded comprises:
acquiring and responding to the time corresponding to the sharing operation of the user on the bullet screen video to be recorded, and taking the acquired time as the starting time of the bullet screen video to be recorded;
judging whether the time corresponding to the recording operation of ending the bullet screen video to be recorded by the user is acquired and responded or not;
if judging that the time corresponding to the ending recording operation of the user on the bullet screen video to be recorded is obtained and received, taking the obtained time as the ending time of the bullet screen video to be recorded;
if the fact that the time corresponding to the ending recording operation of the user on the bullet screen video to be recorded is not obtained is judged, the time when the bullet screen video to be recorded reaches the preset upper recording limit is taken as the ending time of the bullet screen video to be recorded;
And determining a target recording period of the bullet screen video to be recorded based on the starting time of the bullet screen video to be recorded and the ending time of the bullet screen video to be recorded.
3. The video recording method with bullet screen according to claim 1 or 2, further comprising, after receiving the source address of the target recording video with bullet screen returned by the server:
and receiving and responding to the playing operation of the user on the target recording tape barrage video, and/or receiving and responding to the sharing operation of the user on the target recording tape barrage video.
4. The video recording method with the bullet screen is characterized by being applied to a server, and comprises the following steps:
receiving a synthesis request sent by a client; the synthesis request comprises a source address of the bullet screen video to be recorded, a target recording period of the bullet screen video to be recorded, a preset sampling rate and bullet screen content layer pictures of each frame; the preset sampling rate represents the number of bullet screen content layer pictures acquired every second; the bullet screen content layer pictures of each frame are pictures obtained by the client side by sampling bullet screen content layers in the DOM level of the bullet screen video to be recorded, which is currently played and is provided with the bullet screen, according to the preset sampling rate;
Synthesizing a target recording video with a barrage according to the source address of the barrage video to be recorded, the target recording period of the barrage video to be recorded, the preset sampling rate and the barrage content layer pictures of each frame; the target recording video with the barrage is the video with the barrage of the video to be recorded in the target recording period;
and returning the source address of the target recording tape barrage video to the client.
5. The video recording method with a barrage according to claim 4, wherein synthesizing the target recording video with a barrage according to the source address of the video to be recorded, the target recording period of the video to be recorded, the preset sampling rate and the barrage content layer pictures of each frame, comprises:
determining a target recording video segment of the bullet screen video to be recorded according to the source address of the bullet screen video to be recorded and the target recording period of the bullet screen video to be recorded;
and merging the bullet screen content layer pictures of each frame into the target recording video segment in sequence based on the preset sampling rate to obtain the bullet screen video of the target recording band.
6. A video recording apparatus with a bullet screen, for application to a client, the apparatus comprising:
The determining unit is used for determining a target recording period of the bullet screen video to be recorded; the target recording time period is a time period corresponding to the video with the barrage to be recorded, which is needed by a user to record the barrage video to be recorded; the bullet screen video to be recorded is a video with a bullet screen which is currently played by a client;
the sampling unit is used for sampling the barrage content layer of the barrage video to be recorded according to a preset sampling rate to obtain each frame barrage content layer picture of the barrage video to be recorded in the target recording period;
a request sending unit, configured to send a composition request to a server; the composition request comprises a source address of the barrage video to be recorded, a target recording period of the barrage video to be recorded, the preset sampling rate and the barrage content layer pictures of each frame;
the video receiving unit is used for receiving the source address of the bullet screen video of the target recording tape; the target video with the barrage is synthesized by the server, and the video with the barrage of the video to be recorded is in the target recording period;
the sampling unit is specifically configured to:
creating a barrage acquisition class for recording a barrage content layer of the barrage video to be recorded;
Reading the structure and style information of a barrage content layer in the DOM level of the barrage video to be recorded according to the preset sampling rate by utilizing the barrage acquisition class; wherein the structure and style information includes: at least one of position, color, element size;
and constructing corresponding screenshot for the structure and style information of the barrage content layer read by each sampling in sequence to obtain each frame of barrage content layer picture of the barrage video to be recorded in the target recording period.
7. A video recording apparatus with a bullet screen, applied to a server, the apparatus comprising:
the request receiving unit is used for receiving the synthesis request sent by the client; the synthesis request comprises a source address of the bullet screen video to be recorded, a target recording period of the bullet screen video to be recorded, a preset sampling rate and bullet screen content layer pictures of each frame; the preset sampling rate represents the number of bullet screen content layer pictures acquired every second; the bullet screen content layer pictures of each frame are pictures obtained by the client side by sampling bullet screen content layers in the DOM level of the bullet screen video to be recorded, which is currently played and is provided with the bullet screen, according to the preset sampling rate;
The video synthesis unit is used for synthesizing a target recording video with a barrage according to the source address of the barrage video to be recorded, the target recording time period of the barrage video to be recorded, the preset sampling rate and the barrage content layer pictures of each frame; the target recording video with the barrage is the video with the barrage of the video to be recorded in the target recording period;
and the video returning unit is used for returning the source address of the target recording tape barrage video to the client.
8. The video recording apparatus with bullet screen of claim 7 wherein said video synthesizing unit is specifically configured to:
determining a target recording video segment of the bullet screen video to be recorded according to the source address of the bullet screen video to be recorded and the target recording period of the bullet screen video to be recorded;
and merging the bullet screen content layer pictures of each frame into the target recording video segment in sequence according to the preset sampling rate to obtain the bullet screen video of the target recording band.
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| CN104811485A (en) * | 2015-04-10 | 2015-07-29 | 深圳市金立通信设备有限公司 | Resource sharing method |
| CN106713987A (en) * | 2015-07-23 | 2017-05-24 | 阿里巴巴集团控股有限公司 | Implementation method and device for audio/video sharing |
| CN105979288A (en) * | 2016-06-17 | 2016-09-28 | 乐视控股（北京）有限公司 | Video interception method and device |
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| CN107743272B (en) * | 2017-10-26 | 2020-10-30 | 上海哔哩哔哩科技有限公司 | Screenshot method and equipment |
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