CN114827746A - Video playing control method, video playing control device, electronic equipment, media and program product - Google Patents
Video playing control method, video playing control device, electronic equipment, media and program product Download PDFInfo
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- 230000000694 effects Effects 0.000 claims abstract description 113
- 230000008859 change Effects 0.000 claims description 48
- 238000004891 communication Methods 0.000 claims description 18
- 230000006978 adaptation Effects 0.000 claims description 15
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4854—End-user interface for client configuration for modifying image parameters, e.g. image brightness, contrast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8455—Structuring of content, e.g. decomposing content into time segments involving pointers to the content, e.g. pointers to the I-frames of the video stream
Abstract
The embodiment of the disclosure discloses a video playing control method, a video playing control device, electronic equipment, a medium and a program product, wherein the method comprises the following steps: acquiring a timeline of a video from a video playing device, wherein the timeline comprises starting and ending time points of the video; displaying a timeline of a video; acquiring a video playing effect set by a user aiming at the timeline; and sending control data to the video playing device, wherein the control data is determined according to the video playing effect and is used for controlling the video playing device to play the video with the video playing effect.
Description
Technical Field
The present disclosure relates to the field of video playing technologies, and in particular, to a video playing control method, apparatus, electronic device, medium, and program product.
Background
In recent years, digital background technology has been widely used in the shooting of film and television works. When taking a picture using digital background technology, the real environment to be presented is simulated by displaying a video image on a display device.
When taking pictures using digital background techniques, the director often has a need to make the video images change over time, such as the images become more and more blurred or gradually brighter as time progresses. At present, the effect can not be realized in real time on a shooting site, but the video needs to be sent back to a production unit, and a video production personnel of the production unit modifies a video file according to the requirements of a director by using professional video processing software. If the effect achieved by the video producer is not consistent with the effect desired by the director on site, or after the video file is modified, the director provides other modification opinions when shooting on site, the problem of production rework occurs, which results in longer cost and period of the whole shooting.
Disclosure of Invention
In order to solve the problems in the related art, embodiments of the present disclosure provide a video playing control method, device, electronic device, medium, and program product.
In a first aspect, an embodiment of the present disclosure provides a video playing control method, including:
acquiring a timeline of a video from a video playing device, wherein the timeline comprises starting and ending time points of the video;
displaying a timeline of a video;
acquiring a video playing effect set by a user aiming at the timeline;
and sending control data to the video playing device, wherein the control data is determined according to the video playing effect and is used for controlling the video playing device to play the video with the video playing effect.
According to an embodiment of the present disclosure, wherein:
the acquiring the timeline of the video from the video playing device comprises acquiring the timeline of the video from the video playing device through a wireless communication network;
the video playing effect comprises that the playing parameter value of the video changes in any one of the following modes: linear change, step change, smooth change along a specified curve;
the playing parameter value comprises any one of the following: brightness value, color temperature value, color level value and blurring degree value.
According to an embodiment of the present disclosure, wherein:
the obtaining of the video playing effect set by the user for the timeline comprises obtaining playing parameter values input by the user for a plurality of specified time points on the timeline;
the sending of control data to the video playing device according to the video playing effect set for the timeline includes:
after the video starts to be played, acquiring the current playing time of the video;
if the current playing time is not the appointed time point, determining the playing parameter value of the current playing time according to the playing parameter value of the appointed time point before the current playing time, the playing parameter value of the appointed time point after the current playing time and the change mode of the playing parameter value, and if the current playing time is the appointed time point, taking the playing parameter value of the appointed time point as the playing parameter value of the current playing time;
and sending the playing parameter value of the current playing time as the control data to the video playing device.
According to an embodiment of the present disclosure, the obtaining the current playing time of the video includes:
when the video playing device starts playing the video, obtaining playing start time from the video playing device;
after the video playing device starts playing the video, the current playing time of the video is obtained based on the playing starting time and a preset time interval.
According to an embodiment of the present disclosure, the method further comprises:
acquiring local time when the video playing device starts playing the video as local starting time,
wherein the obtaining the current playing time of the video based on the playing start time and a preset time interval includes:
after the video playing device starts playing the video, acquiring local current time at preset time intervals;
determining a current playing time of the video based on the playing start time, the local start time, and the local current time.
In a second aspect, an embodiment of the present disclosure provides a video playing control method, including:
sending a timeline of a video to a video adjustment device, the timeline comprising start and stop time points of the video;
acquiring control data from the video adjusting device, wherein the control data is determined according to the video playing effect and is used for controlling a video playing device to play the video with the video playing effect;
and playing the video with the playing effect according to the control data.
According to an embodiment of the present disclosure, wherein:
the control data comprises a play parameter value;
the playing parameter value comprises any one of the following: brightness value, color temperature value, color level value and blurring degree value;
the video playing effect comprises that the playing parameter value of the video changes in any one of the following modes: linear change, step change, smooth change along a specified curve;
the sending the timeline of video to a video adaptation device comprises sending the timeline of video to the video adaptation device over a wireless communication network.
According to the embodiment of the disclosure, the control data includes a playing parameter value of the current playing time, and the playing parameter value of the current playing time is determined according to a playing parameter value input by a user for a specified time point on the timeline and a change mode of the playing parameter value.
According to an embodiment of the present disclosure, the method further comprises:
when the video starts to be played, sending the playing start time of the video to the video adjusting device, wherein the playing start time of the video is used for the video adjusting device to determine the current playing time of the video.
According to an embodiment of the present disclosure, the obtaining of the control data from the video adjusting apparatus includes obtaining a playing parameter value of a current playing time from the video adjusting apparatus.
In a third aspect, an embodiment of the present disclosure provides a video playback control apparatus, including:
a first acquisition module configured to acquire a timeline of a video from a video playing apparatus, the timeline including start and stop time points of the video;
a presentation module configured to present a timeline of a video;
the second acquisition module is configured to acquire a video playing effect set by a user for the timeline;
a first sending module, configured to send control data to the video playing apparatus, where the control data is determined according to the video playing effect, and is used to control the video playing apparatus to play the video with the video playing effect.
According to an embodiment of the present disclosure, wherein:
the acquiring the timeline of the video from the video playing device comprises acquiring the timeline of the video from the video playing device through a wireless communication network;
the video playing effect comprises that the playing parameter value of the video changes in any one of the following modes: linear, step, smooth along a specified curve.
The playing parameter value comprises any one of the following: brightness value, color temperature value, color level value and blurring degree value.
According to an embodiment of the present disclosure, wherein:
the obtaining of the video playing effect set by the user for the timeline comprises obtaining playing parameter values input by the user for a plurality of specified time points on the timeline;
the sending of control data to the video playing device according to the video playing effect set for the timeline comprises:
after the video starts to be played, acquiring the current playing time of the video;
if the current playing time is not the appointed time point, determining the playing parameter value of the current playing time according to the playing parameter value of the appointed time point before the current playing time, the playing parameter value of the appointed time point after the current playing time and the change mode of the playing parameter value, and if the current playing time is the appointed time point, taking the playing parameter value of the appointed time point as the playing parameter value of the current playing time;
and sending the playing parameter value of the current playing time as the control data to the video playing device.
According to an embodiment of the present disclosure, the obtaining the current playing time of the video includes:
when the video playing device starts playing the video, obtaining playing start time from the video playing device;
after the video playing device starts playing the video, the current playing time of the video is obtained based on the playing starting time and a preset time interval.
According to an embodiment of the present disclosure, the video playback control apparatus further includes:
a third obtaining module configured to obtain a local time when the video playing apparatus starts playing the video as a local start time,
wherein the obtaining the current playing time of the video based on the playing start time and a preset time interval includes:
after the video playing device starts playing the video, acquiring local current time at preset time intervals;
determining a current playing time of the video based on the playing start time, the local start time, and the local current time.
In a fourth aspect, an embodiment of the present disclosure provides a video playback control apparatus, including:
a second transmitting module configured to transmit a timeline of a video to a video adjusting apparatus, the timeline including start and end time points of the video;
a fourth obtaining module, configured to obtain control data from the video adjusting apparatus, where the control data is determined according to the video playing effect, and is used to control a video playing apparatus to play the video with the video playing effect;
and the playing module is configured to play the video with the playing effect according to the control data.
According to an embodiment of the present disclosure, wherein:
the control data comprises a play parameter value;
the playing parameter value comprises any one of the following: brightness value, color temperature value, color level value and blurring degree value;
the video playing effect comprises that the playing parameter value of the video changes in any one of the following modes: linear change, step change, smooth change along a specified curve;
the sending the timeline of video to a video adaptation device comprises sending the timeline of video to the video adaptation device over a wireless communication network.
According to the embodiment of the disclosure, the control data includes a playing parameter value of the current playing time, and the playing parameter value of the current playing time is determined according to a playing parameter value input by a user for a specified time point on the timeline and a change mode of the playing parameter value.
According to an embodiment of the present disclosure, the video playback control apparatus further includes:
a third sending module, configured to send, to the video adjustment device, a play start time of the video when the video starts to be played, where the play start time of the video is used for the video adjustment device to determine a current play time of the video.
According to an embodiment of the present disclosure, the obtaining of the control data from the video adjusting apparatus includes obtaining a playing parameter value of a current playing time from the video adjusting apparatus.
In a fifth aspect, the present disclosure provides an electronic device, including a memory and a processor, wherein the memory is configured to store one or more computer instructions, and wherein the one or more computer instructions are executed by the processor to implement the method according to any one of the first to second aspects.
In a sixth aspect, the disclosed embodiments provide a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the method according to the first to second aspects.
In a seventh aspect, the disclosed embodiments provide a computer program product comprising computer instructions which, when executed by a processor, implement the method steps according to the first to second aspects.
According to the embodiment of the disclosure, the video playing effect can be modified on site in real time, the video adjusting efficiency is greatly improved, and the video adjusting cost is reduced. In addition, only time lines, control data and the like need to be transmitted between the video playing device and the video adjusting device, and huge video data does not need to be transmitted, so that the occupied communication bandwidth is small, the real-time performance is good, and the processing efficiency is high.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
Other features, objects, and advantages of the present disclosure will become more apparent from the following detailed description of non-limiting embodiments when taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 shows a schematic diagram of the principle of implementing video image change with time in the prior art.
Fig. 2 shows a flowchart of a video playback control method according to an embodiment of the present disclosure.
Fig. 3 shows a flowchart of a video playback control method according to an embodiment of the present disclosure.
Fig. 4 illustrates an application scene diagram of a video playback control method according to an embodiment of the present disclosure.
Fig. 5 shows a video timeline schematic in accordance with an embodiment of the present disclosure.
FIG. 6 shows a user interaction interface diagram for setting play effects for a timeline according to an embodiment of the present disclosure.
Fig. 7A and 7B illustrate block diagrams of a video playback device and a video adjustment device according to an embodiment of the present disclosure.
Fig. 8 shows a flowchart of a video playback control method according to an embodiment of the present disclosure.
Fig. 9A illustrates a block diagram of a video adjusting apparatus according to an embodiment of the present disclosure.
Fig. 9B shows a block diagram of a video playback device according to an embodiment of the present disclosure.
Fig. 10 shows a block diagram of an electronic device according to an embodiment of the present disclosure.
FIG. 11 shows a schematic block diagram of a computer system suitable for use in implementing methods according to embodiments of the present disclosure.
Detailed Description
Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. Also, for the sake of clarity, parts not relevant to the description of the exemplary embodiments are omitted in the drawings.
In the present disclosure, it is to be understood that terms such as "including" or "having," etc., are intended to indicate the presence of the disclosed features, numbers, steps, behaviors, components, parts, or combinations thereof, and are not intended to preclude the possibility that one or more other features, numbers, steps, behaviors, components, parts, or combinations thereof may be present or added.
It should be further noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In the present disclosure, the acquisition of the user information or the user data is an operation that is authorized, confirmed, or actively selected by the user.
As described above, when shooting using digital background technology, the director often has a need to make video images change over time, such as the images become more and more blurred or gradually brighter as time progresses. At present, the effect can not be realized in real time on a shooting site, but the video needs to be sent back to a production unit, and a video production personnel of the production unit modifies a video file according to the requirements of a director by using professional video processing software. If the effect achieved by the video producer is not consistent with the effect desired by the director on site, or after the video file is modified, the director provides other modification opinions when shooting on site, the problem of production rework occurs, which results in longer cost and period of the whole shooting.
Fig. 1 shows a schematic diagram of the principle of implementing video image change with time in the prior art.
As shown in fig. 1, a worker in front of a screen, for example, a director, observes a video playing effect on a Light Emitting Diode (LED) display screen, and notifies a video producer of a production organization of a requirement for increasing and/or modifying the video playing effect, the video producer modifies a video according to the requirement, and the operator behind the screen operates a video playing device to play the modified video according to a manipulation instruction (for example, play, pause, etc.) of the worker in front of the screen. If the staff in front of the screen thinks that the effect of the modified video is not consistent with the effect wanted by the staff, or thinks of other modification opinions, the staff needs to modify the video again, which results in longer whole shooting cost and period.
The embodiment of the disclosure provides a video playing control method, which includes: acquiring a timeline of a video from a video playing device, wherein the timeline comprises starting and ending time points of the video; displaying a timeline of a video; acquiring a video playing effect set by a user aiming at the timeline; and sending control data to the video playing device, wherein the control data is determined according to the video playing effect and is used for controlling the video playing device to play the video with the video playing effect.
According to the embodiment of the disclosure, the video playing effect can be modified on site in real time, the video adjusting efficiency is greatly improved, and the video adjusting cost is reduced. In addition, only time lines, control data and the like need to be transmitted between the video playing device and the video adjusting device, and huge video data does not need to be transmitted, so that the occupied communication bandwidth is small, the real-time performance is good, and the processing efficiency is high.
Fig. 2 shows a flowchart of a video playback control method according to an embodiment of the present disclosure. As shown in fig. 2, the video playback control method includes the following steps S201 to S204:
in step S201, a timeline of a video is acquired from a video playing apparatus, the timeline including start and stop time points of the video;
in step S202, a timeline of the video is presented;
in step S203, acquiring a video playing effect set by a user for the timeline;
in step S204, control data is sent to the video playing apparatus, where the control data is determined according to the video playing effect and is used to control the video playing apparatus to play the video with the video playing effect.
According to an embodiment of the present disclosure, the video play control method described with reference to fig. 2 may be performed by a video adjusting apparatus, which may be implemented by software, hardware, or firmware. For example, the video adjusting means may be implemented by video adjusting software running on the mobile terminal, or may be implemented by a dedicated video adjusting device.
Fig. 3 shows a flowchart of a video playback control method according to an embodiment of the present disclosure. As shown in fig. 3, the video playback control method includes the following steps S301 to S303:
in step S301, a timeline of a video is transmitted to a video adjustment apparatus, the timeline including start and stop time points of the video;
in step S302, control data is obtained from the video adjusting apparatus, where the control data is determined according to a video playing effect set by a user for the timeline, and is used to control a video playing apparatus to play the video with the video playing effect;
in step S303, the video is played with the playing effect according to the control data.
According to an embodiment of the present disclosure, the video playback control method described with reference to fig. 3 may be performed by a video playback apparatus, which may be implemented by software, hardware, or firmware. For example, the video playback apparatus may be implemented by video playback software running on a Personal Computer (PC), or may be implemented by a dedicated video playback device. The PC or the video playing device running the video playing software is connected to the LED display screen, and the video is displayed on the LED display screen as a background image for shooting movie and television works.
According to the embodiment of the disclosure, the video played by the video playing device can also be used for other purposes besides the background image, such as outdoor advertisement and the like.
According to the embodiment of the disclosure, videos can be modified on site, the required playing effect is achieved, feedback of relevant personnel on the playing effect is obtained in real time and adjusted, the video adjusting efficiency is greatly improved, and the video adjusting cost is reduced. In addition, only time lines, control data and the like need to be transmitted between the video playing device and the video adjusting device, and huge video data does not need to be transmitted, so that the occupied communication bandwidth is small, the real-time performance is good, and the processing efficiency is high.
Fig. 4 illustrates an application scene diagram of a video playback control method according to an embodiment of the present disclosure.
As shown in fig. 4, the video playback apparatus may be implemented by software, hardware, or firmware. For example, the video playback apparatus may be implemented by video playback software running on a PC, or may be implemented by a dedicated video playback device. And a PC or video playing equipment running video playing software is connected to the LED display screen to control the LED display screen to display videos. The video adaptation means may be implemented by software, hardware or firmware. For example, the video adjusting means may be implemented by video adjusting software running on the mobile terminal, or may be implemented by a dedicated video adjusting device.
In the example of fig. 4, the video playback device may be disposed behind the screen of the LED display screen. The video playing device is communicated with the video adjusting device through a wireless network, and the time line of the video is sent to the video adjusting device and displayed through the video adjusting device.
A user (e.g., a field worker such as a director) may view a video playing effect on the LED display screen, and input a desired video playing effect on a timeline displayed by the video adjusting apparatus, and the video adjusting apparatus determines control data according to the video playing effect set for the timeline, where the control data is used to control the video playing apparatus to play the video with the video playing effect. And the video adjusting device sends the control data to a video playing device, and the video playing device plays the video on the LED display screen according to the control data and the video playing effect. A user observes the video playing effect on the LED display screen, the video playing effect can be conveniently modified on site in real time through the video adjusting device, the video adjusting efficiency is greatly improved, and the video adjusting cost is reduced.
Fig. 5 shows a video timeline schematic in accordance with an embodiment of the present disclosure.
According to an embodiment of the present disclosure, a timeline of a video includes start and stop time points of the video. For example, the length of the timeline of the video corresponds to the length of the video, and the two endpoints of the timeline correspond to the start point and the end point of the video, respectively. As shown in fig. 5, the time length of the video a is 1 minute and 30 seconds, and the time line includes a start time point 00:00 and an end time point 01:30 of the video.
Referring to fig. 5, after the video adjusting apparatus acquires the timeline of the video from the video playing apparatus, the timeline is shown. For example, assuming that the video adjustment means is implemented by a mobile terminal of a field worker, the timeline may be presented on a display screen of the mobile terminal.
According to the embodiment of the disclosure, the video playing effect includes that the playing parameter value of the video changes in any one of the following ways: linear change, step change, smooth change along a designated curve, and the playing parameter value includes any one of the following: brightness value, color temperature value, color level value, blurring value.
According to the embodiment of the disclosure, the acquiring the video playing effect set by the user for the timeline comprises acquiring playing parameter values input by the user for a plurality of specified time points on the timeline; the sending of control data to the video playing device according to the video playing effect set for the timeline includes: after the video starts to be played, acquiring the current playing time of the video; determining the playing parameter value of the current playing time according to the playing parameter value of the specified time point before the current playing time and the playing parameter value of the specified time point after the current playing time; and sending the playing parameter value of the current playing time as the control data to the video playing device.
FIG. 6 shows a user interaction interface diagram for setting play effects for a timeline according to an embodiment of the present disclosure.
As shown in fig. 6, the video adjusting apparatus may display a timeline 1 on a user interaction interface thereof, and may set a plurality of layers (4 layers are shown in the figure) for the timeline 1 (layer 1, layer 2, layer 3, and layer 4, where each layer may set one or more videos. And each layer corresponds to a corresponding preset area on the LED screen and is used for playing the video of the layer. By selecting the layer, the playing effect can be set for the video in any layer. For example, suppose that four videos P, Q, S, T are set on layer 1, video P corresponds to time periods 00: 00-00: 40 of time line 1, video Q corresponds to time periods 00: 40-00: 50 of time line 1, video S corresponds to time periods 00: 50-01: 10 of time line 1, and video T corresponds to time periods 01: 10-01: 30 of time line 1.
Assuming that the user wants to set a play effect for the video P of layer 1, layer 1 may be selected on the user interaction interface. Then, the play effect set by the user for timeline 1 will be applied to the video in layer 1.
The playback parameter value is illustrated in fig. 6 as a luminance value, but it is understood that the playback parameter value may be any one of a luminance value, a color temperature value, a color gradation value, and a blurring value, but is not limited thereto. The blurring degree of the video image can be represented by a numerical value, and the higher the blurring degree is, the larger the blurring degree is.
Taking the playing parameter value as the brightness value as an example, assuming that the user wants to set the playing effect for the video P in layer 1 of timeline 1, the user may input the brightness value-20 for the specified time point 00:00 on timeline 1, input the brightness value 60 for the specified time point 00:20 on timeline 1, and input the brightness value 10 for the specified time point 00:40 on timeline 1. Assuming that the video playing effect is that the brightness value changes smoothly along a specified curve between the brightness values at specified time points, the brightness value at any time point can be determined according to the specified curve between the specified time points 00:00, 00:20 and 00: 40. According to the embodiment of the disclosure, the designated curve may be designated by the user, and may be a regular curve such as a sine curve and a cosine curve, or a curve drawn by the user according to actual needs. In this way, according to the play parameter value input by the user for the specified time point on the timeline and the change mode of the play parameter value, the play parameter value at any time point between the specified time points on the timeline can be determined.
According to the embodiment of the disclosure, the specified time point includes a start-stop time point of the video, and may further include one or more time points in the video. Alternatively, the specified time point does not include the start-stop time of the video, etc., and the play parameter value at the start-stop time point of the video may be a default value set in advance.
According to the embodiment of the disclosure, a user can set the playing effect respectively for each video in the selected layer. Or, for a video for which the user does not set the playing effect, the video may be played with a default playing effect, or a last playing effect of a video before the video is adopted.
After the video starts to be played, the current playing time of the video can be acquired, and the playing parameter value of the current playing time is determined according to the playing parameter value of the specified time point before the current playing time and the playing parameter value of the specified time point after the current playing time. For example, assuming that the current playing time of the video is 00:10, the brightness value 10 of the current playing time 00:10 may be determined according to the brightness value-20 of the specified time point 00:00 before the current playing time 00:10 and the brightness value 60 of the specified time point 00:20 after the current playing time 00:10, and a change manner of the brightness value (for example, a brightness value curve specified by a user or a preset arbitrary change manner). Then, the luminance value 10 of the current play time 00:10 can be transmitted as control data to the video playback apparatus, which plays back the video corresponding to the time point 00:10 on the time line at the luminance value 10. If the current playing time is just the designated time point, the playing parameter of the designated time point is taken as the playing parameter of the current playing time.
According to the embodiment of the disclosure, before the video playing device receives new control data, the video playing device plays video according to the last control data received. For example, after the video playing apparatus receives the brightness value 10, i.e. plays the video with the brightness value 10 until it receives the new brightness value 12, it changes to play the video with the brightness value 12. Thus, when the brightness value remains unchanged for a period of time, the video adjusting apparatus may not send control data to the video playing apparatus for the period of time, so as to reduce the data transmission amount and reduce the data processing amount of the video playing apparatus.
According to an embodiment of the present disclosure, the obtaining the current playing time of the video includes: when the video playing device starts playing the video, obtaining playing start time from the video playing device; after the video playing device starts playing the video, the current playing time of the video is obtained based on the playing starting time and a preset time interval.
According to the embodiment of the present disclosure, when the video playing device starts playing the video, the playing start time of the video may be sent to the video adjusting device. Taking the video corresponding to the time line shown in fig. 5 as an example, assuming that the video playback apparatus starts playing the video from 00:10, the video playback apparatus transmits the time 00:10 as the playback start time to the video adjustment apparatus. Then, assuming that the preset time interval is 1 second, the current playing time of the video may be acquired based on the playing start time 00:10 and the preset time interval 1 second, for example, the current playing time may be 00:11, 00:12, 00:13, … ….
According to an embodiment of the present disclosure, the video playing control method further includes acquiring a local time when the video playing apparatus starts playing the video as a local start time, wherein the acquiring a current playing time of the video based on the playing start time and a preset time interval includes: after the video playing device starts playing the video, acquiring local current time at preset time intervals; determining a current playing time of the video based on the playing start time, the local start time, and the local current time.
For example, assuming that the playing start time is t1, and the local time (i.e., the local start time) of the video adjusting apparatus is t2, the video adjusting apparatus may set a timer locally, and the timer triggers acquiring the local current time t3 of the video adjusting apparatus at regular time intervals, so that the current playing time is t1+ (t3-t 2). In this way, the current play time can be acquired with higher accuracy.
After the current playing time is obtained, the playing parameter value of the current playing time is determined according to the playing parameter value of the specified time point before the current playing time and the playing parameter value of the specified time point after the current playing time, for example, the playing parameter value (for example, the brightness value of-20) of the specified time point 00:00 before the current playing time 00:11, 00:12, 00:13, … … and the playing parameter value (for example, the brightness value of 60) of the specified time point 00:20 after the current playing time are obtained according to the change mode of the playing parameter values, and the playing parameter value of the current playing time 00:11, 00:12, 00:13, … … is sent to the video playing device as the control data. For example, at 00:11, the playing parameter value of 00:11 is determined and sent to the video playing device, and the video playing device plays the video according to the playing parameter value of 00: 11. And when the video is in the 00:12 range, determining the playing parameter value of the 00:12 range and sending the playing parameter value to the video playing device, and playing the video by the video playing device according to the playing parameter value of the 00:12 range. At 00:13, the playing parameter value of 00:13 is determined and sent to the video playing device, and the video playing device plays the video … … according to the playing parameter value of 00:13, and so on.
According to the embodiment of the disclosure, the playing parameter value of the current playing time is calculated in real time at the video adjusting device and is sent to the video playing device, so that the video playing device plays the video according to the playing parameter value, the data processing load of the video playing device can be reduced, the working logic of the video playing device is simplified, the transformation difficulty of the existing video playing device is reduced, and the compatibility with the existing video playing device is easily realized.
Fig. 7A and 7B illustrate block diagrams of a video playback device and a video adjustment device according to an embodiment of the present disclosure.
According to the embodiments of the present disclosure, the video playing apparatus and the video adjusting apparatus may be implemented by any one of software, hardware, or firmware.
As shown in fig. 7A, the video playing apparatus 710 includes a timeline management module 711, a timeline arranging module 712, a playing control module 713, an image real-time processing module 714, and an image output module 715.
The timeline management module 711 is used for functions of adding and deleting timelines. The timeline orchestration module 712 is used to add, delete, move layers on the timeline, and the like. The play control module 713 is used for playing, pausing, searching and other functions of the video. The image real-time processing module 714 is used for controlling the playing effect of the video according to the control data. The image output module 715 is used to output the video to a display device, such as an LED display screen.
As shown in fig. 7B, the video adjusting apparatus 720 includes a timeline acquiring and presenting module 721, a playing effect setting module 722, a timer 723, a timer 724, a control data determining module 725, and an image real-time control module 726.
Timeline acquisition and presentation module 721 is used to acquire the timeline from the video playback device and present the timeline. The playing effect setting module 722 is configured to set a video playing effect according to user input, for example, receive a playing parameter value input by a user for a specified time point and receive a playing parameter value change manner specified by the user. The timer 723 is used to trigger acquisition of the local current time at fixed time intervals. The timer 724 is used for determining the current playing time according to the playing start time, the local start time and the local current time. The control data determining module 725 is configured to determine, according to the playing parameter value, the playing parameter value change manner, and the current playing time input by the user at the specified time point, a playing parameter value of the current playing time as the control data. The image real-time control module 726 is configured to send the control data to the video playback device.
Fig. 8 shows a flowchart of a video playback control method according to an embodiment of the present disclosure.
As shown in fig. 8, in step S1, the user arranges the video and the timeline by the video playing apparatus, for example, the timeline of the video can be added, the layers can be added, deleted, moved on the timeline, and so on. .
In step S2.1, the user operates the video adjustment device to obtain a timeline of the video from the video playback device. In step S2.2, the video adaptation device sends a request to the video playback device to obtain the timeline of the video. In step S2.3, the video playback device returns the timeline of the video to the video adaptation device.
In step S3, the user sets the playback effect of the video for the time line on the video adjustment apparatus. For example, a user may enter a play parameter value for a specified point in time on the timeline. The user can specify the variation mode of the playing parameter value, for example, a playing parameter value variation curve can be manually drawn between the specified time points, so as to determine the playing effect of the video between the specified time points. Or, a default change mode of the playing parameter value may be preset, and after the user inputs the playing parameter value for the specified time point, the video adjusting apparatus may determine the playing effect of the video between the specified time points according to the default change mode.
In step S4.1, the user clicks the play button on the video adjustment device. In step S4.2, the video adjusting device instructs the video playing device to play the video. In step S4.3, the video playing device plays the video on the LED display screen.
In step S5, the video playback device transmits the playback start time to the video adjustment device. For example, assuming that the video playback apparatus starts playing back a video from 00:05 of the video, the video playback apparatus transmits 00:05 as a playback start time to the video adjustment apparatus. Alternatively, in step S5, assuming that the video adjustment device instructs the video playback device to start playing back the video from 00:05, the video adjustment device takes 00:05 as the playback start time without acquiring the playback start time from the video playback device.
In step S6, the video adjustment apparatus acquires the current playing time. For example, assuming that the playing start time is 00:05, the video adjusting apparatus obtains the current playing time of the video at a preset time interval of 1 second, for example, the current playing time may be 00:06, 00:07, 00:08, … ….
In step S7, the playing parameter value of the current playing time is determined according to the playing parameter value at the specified time point before the current playing time, the playing parameter value at the specified time point after the current playing time, and the variation manner of the playing parameter value. For example, in the example shown in fig. 6, assuming that the current playing time of the video is 00:10, the luminance value 10 of the current playing time 00:10 may be determined according to the luminance value-20 of the specified time point 00:00 before the current playing time 00:10 and the luminance value 60 of the specified time point 00:20 after the current playing time 00:10, and a variation manner of the luminance value (e.g., a luminance value curve specified by a user or a preset arbitrary variation manner).
In step S8, the playback parameter value for the current playback time is sent to the video playback device as control data.
In step S9, the video playing apparatus plays the video according to the playing parameter value of the current playing time, so as to achieve the video playing effect set by the user through the video adjusting apparatus.
According to the embodiment of the disclosure, videos can be modified on site, the required playing effect is achieved, feedback of relevant personnel on the playing effect is obtained in real time and adjusted, the video adjusting efficiency is greatly improved, and the video adjusting cost is reduced. In addition, only time lines, control data and the like need to be transmitted between the video playing device and the video adjusting device, and huge video data does not need to be transmitted, so that the occupied communication bandwidth is small, the real-time performance is good, and the processing efficiency is high.
Fig. 9A illustrates a block diagram of a video adjusting apparatus according to an embodiment of the present disclosure. The apparatus may be implemented as part or all of an electronic device through software, hardware, or a combination of both.
As shown in fig. 9A, the video adjusting apparatus 910 includes:
a first obtaining module 911 configured to obtain a timeline of a video from a video playing apparatus, the timeline including start and end time points of the video;
a presentation module 912 configured to present a timeline of a video;
a second obtaining module 913 configured to obtain a video playing effect set by the user for the timeline;
a first sending module 914, configured to send control data to the video playing apparatus, where the control data is determined according to the video playing effect, and is used to control the video playing apparatus to play the video with the video playing effect.
According to an embodiment of the present disclosure, wherein:
the acquiring the timeline of the video from the video playing device comprises acquiring the timeline of the video from the video playing device through a wireless communication network;
the video playing effect comprises that the playing parameter value of the video changes in any one of the following modes: linear change, step change, smooth change along a specified curve;
the playing parameter value comprises any one of the following: brightness value, color temperature value, color level value and blurring degree value.
According to an embodiment of the present disclosure, wherein:
the method comprises the steps that the video playing effect set by a user for the time line is obtained, and playing parameter values input by the user for a plurality of specified time points on the time line are obtained;
the sending of control data to the video playing device according to the video playing effect set for the timeline comprises:
after the video starts to be played, acquiring the current playing time of the video;
if the current playing time is not the appointed time point, determining the playing parameter value of the current playing time according to the playing parameter value of the appointed time point before the current playing time, the playing parameter value of the appointed time point after the current playing time and the change mode of the playing parameter value, and if the current playing time is the appointed time point, taking the playing parameter value of the appointed time point as the playing parameter value of the current playing time;
and sending the playing parameter value of the current playing time as the control data to the video playing device.
According to an embodiment of the present disclosure, the obtaining the current playing time of the video includes:
when the video playing device starts playing the video, obtaining playing start time from the video playing device;
after the video playing device starts playing the video, the current playing time of the video is obtained based on the playing starting time and a preset time interval.
According to an embodiment of the present disclosure, the video playing control device 910 further includes:
a third obtaining module 915, configured to obtain a local time when the video playing apparatus starts playing the video as a local start time,
wherein the obtaining the current playing time of the video based on the playing start time and a preset time interval includes:
after the video playing device starts playing the video, acquiring local current time at preset time intervals;
determining a current playing time of the video based on the playing start time, the local start time, and the local current time.
Fig. 9B shows a block diagram of a video playback device according to an embodiment of the present disclosure. The apparatus may be implemented as part or all of an electronic device through software, hardware, or a combination of both.
As shown in fig. 9B, the video playing apparatus 920 includes:
a second transmitting module 921 configured to transmit a timeline of a video to a video adjusting apparatus, the timeline including start-stop time points of the video;
a fourth obtaining module 922, configured to obtain control data from the video adjusting apparatus, where the control data is determined according to the video playing effect, and is used to control a video playing apparatus to play the video with the video playing effect;
a playing module 923 configured to play the video with the playing effect according to the control data.
According to an embodiment of the present disclosure, wherein:
the control data comprises a play parameter value;
the playing parameter value comprises any one of the following: brightness value, color temperature value, color level value and blurring degree value;
the video playing effect comprises that the playing parameter value of the video changes in any one of the following modes: linear change, step change, smooth change along a specified curve;
the sending a timeline of video to a video adaptation device comprises sending the timeline of video to the video adaptation device over a wireless communication network.
According to the embodiment of the disclosure, the control data includes a playing parameter value of the current playing time, and the playing parameter value of the current playing time is determined according to a playing parameter value input by a user for a specified time point on the timeline and a change mode of the playing parameter value.
According to an embodiment of the present disclosure, the video playback control apparatus 920 further includes:
a third sending module 924, configured to send, to the video adjustment apparatus, a play start time of the video when the video starts to be played, where the play start time of the video is used by the video adjustment apparatus to determine a current play time of the video.
According to an embodiment of the present disclosure, the obtaining of the control data from the video adjusting apparatus includes obtaining a playing parameter value of a current playing time from the video adjusting apparatus.
The present disclosure also discloses an electronic device, and fig. 10 shows a block diagram of the electronic device according to an embodiment of the present disclosure.
As shown in fig. 10, the electronic device 1000 comprises a memory 1001 and a processor 1002, wherein the memory 1001 is used for storing one or more computer instructions, wherein the one or more computer instructions are executed by the processor 1002 to implement the method according to the embodiment of the present disclosure.
The embodiment of the disclosure provides a video playing control method, which includes:
acquiring a timeline of a video from a video playing device, wherein the timeline comprises starting and ending time points of the video;
displaying a timeline of a video;
acquiring a video playing effect set by a user aiming at the timeline;
and sending control data to the video playing device, wherein the control data is determined according to the video playing effect and is used for controlling the video playing device to play the video with the video playing effect.
According to an embodiment of the present disclosure, wherein:
the acquiring the timeline of the video from the video playing device comprises acquiring the timeline of the video from the video playing device through a wireless communication network;
the video playing effect comprises that the playing parameter value of the video changes in any one of the following modes: linear, step, smooth along a specified curve.
The playing parameter value comprises any one of the following: brightness value, color temperature value, color level value and blurring degree value.
According to an embodiment of the present disclosure, wherein:
the obtaining of the video playing effect set by the user for the timeline comprises obtaining playing parameter values input by the user for a plurality of specified time points on the timeline;
the sending of control data to the video playing device according to the video playing effect set for the timeline includes:
after the video starts to be played, acquiring the current playing time of the video;
if the current playing time is not the appointed time point, determining the playing parameter value of the current playing time according to the playing parameter value of the appointed time point before the current playing time, the playing parameter value of the appointed time point after the current playing time and the change mode of the playing parameter value, and if the current playing time is the appointed time point, taking the playing parameter value of the appointed time point as the playing parameter value of the current playing time;
and sending the playing parameter value of the current playing time as the control data to the video playing device.
According to an embodiment of the present disclosure, the obtaining the current playing time of the video includes:
when the video playing device starts playing the video, obtaining playing start time from the video playing device;
after the video playing device starts playing the video, the current playing time of the video is obtained based on the playing starting time and a preset time interval.
According to an embodiment of the present disclosure, the method further comprises:
acquiring local time when the video playing device starts playing the video as local starting time,
wherein, the obtaining the current playing time of the video based on the playing start time and the preset time interval comprises:
after the video playing device starts playing the video, acquiring local current time at preset time intervals;
determining a current playing time of the video based on the playing start time, the local start time, and the local current time.
The embodiment of the disclosure provides a video playing control method, which includes:
sending a timeline of a video to a video adjustment device, the timeline comprising start and stop time points of the video;
acquiring control data from the video adjusting device, wherein the control data is determined according to the video playing effect and is used for controlling a video playing device to play the video with the video playing effect;
and playing the video with the playing effect according to the control data.
According to an embodiment of the present disclosure, wherein:
the control data comprises a play parameter value;
the playing parameter value comprises any one of the following: brightness value, color temperature value, color level value and blurring degree value;
the video playing effect comprises that the playing parameter value of the video changes in any one of the following modes: linear change, step change, smooth change along a specified curve;
the sending the timeline of video to a video adaptation device comprises sending the timeline of video to the video adaptation device over a wireless communication network.
According to the embodiment of the disclosure, the control data includes a playing parameter value of the current playing time, and the playing parameter value of the current playing time is determined according to a playing parameter value input by a user for a specified time point on the timeline and a change mode of the playing parameter value.
According to an embodiment of the present disclosure, the method further comprises:
when the video starts to be played, the playing start time of the video is sent to the video adjusting device, and the playing start time of the video is used for the video adjusting device to determine the current playing time of the video.
According to an embodiment of the present disclosure, the obtaining of the control data from the video adjusting apparatus includes obtaining a playing parameter value of a current playing time from the video adjusting apparatus.
FIG. 11 shows a schematic block diagram of a computer system suitable for use in implementing methods according to embodiments of the present disclosure.
As shown in fig. 11, the computer system 1100 includes a processing unit 1101, which can execute various processes in the above-described embodiments according to a program stored in a Read Only Memory (ROM)1102 or a program loaded from a storage section 1108 into a Random Access Memory (RAM) 1103. In the RAM1103, various programs and data necessary for the operation of the system 1100 are also stored. The processing unit 1101, the ROM 1102, and the RAM1103 are connected to each other by a bus 1104. An input/output (I/O) interface 1105 is also connected to bus 1104.
The following components are connected to the I/O interface 1105: an input portion 1106 including a keyboard, mouse, and the like; an output portion 1107 including a signal output unit such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and a speaker; a storage section 1108 including a hard disk and the like; and a communication section 1109 including a network interface card such as a LAN card, a modem, or the like. The communication section 1109 performs communication processing via a network such as the internet. A driver 1110 is also connected to the I/O interface 1105 as necessary. A removable medium 1111 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 1110 as necessary, so that a computer program read out therefrom is mounted into the storage section 1108 as necessary. The processing unit 1101 may be implemented as a CPU, a GPU, a TPU, an FPGA, an NPU, or other processing units.
In particular, the methods described above may be implemented as computer software programs, according to embodiments of the present disclosure. For example, embodiments of the present disclosure include a computer program product comprising computer instructions that, when executed by a processor, implement the method steps described above. In such an embodiment, the computer program product may be downloaded and installed from a network via the communication portion 1109 and/or installed from the removable media 1111.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units or modules described in the embodiments of the present disclosure may be implemented by software or by programmable hardware. The units or modules described may also be provided in a processor, and the names of the units or modules do not in some cases constitute a limitation of the units or modules themselves.
As another aspect, the present disclosure also provides a computer-readable storage medium, which may be a computer-readable storage medium included in the electronic device or the computer system in the above embodiments; or it may be a separate computer readable storage medium not incorporated into the device. The computer readable storage medium stores one or more programs for use by one or more processors in performing the methods described in the present disclosure.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention in the present disclosure is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is possible without departing from the inventive concept. For example, the above features and (but not limited to) the features disclosed in this disclosure having similar functions are replaced with each other to form the technical solution.
Claims (14)
1. A video playing control method comprises the following steps:
acquiring a timeline of a video from a video playing device, wherein the timeline comprises starting and ending time points of the video;
displaying a timeline of a video;
acquiring a video playing effect set by a user aiming at the timeline;
and sending control data to the video playing device, wherein the control data is determined according to the video playing effect and is used for controlling the video playing device to play the video with the video playing effect.
2. The method of claim 1, wherein:
the acquiring the timeline of the video from the video playing device comprises acquiring the timeline of the video from the video playing device through a wireless communication network;
the video playing effect comprises that the playing parameter value of the video changes in any one of the following modes: linear change, step change, smooth change along a specified curve;
the playing parameter value comprises any one of the following: brightness value, color temperature value, color level value and blurring degree value.
3. The method of claim 1, wherein:
the obtaining of the video playing effect set by the user for the timeline comprises obtaining playing parameter values input by the user for a plurality of specified time points on the timeline;
the sending of control data to the video playing device according to the video playing effect set for the timeline includes:
after the video starts to be played, acquiring the current playing time of the video;
if the current playing time is not the specified time point, determining the playing parameter value of the current playing time according to the playing parameter value of the specified time point before the current playing time, the playing parameter value of the specified time point after the current playing time and the change mode of the playing parameter value, and if the current playing time is the specified time point, taking the playing parameter value of the specified time point as the playing parameter value of the current playing time;
and sending the playing parameter value of the current playing time as the control data to the video playing device.
4. The method of claim 3, wherein the obtaining the current playing time of the video comprises:
when the video playing device starts playing the video, obtaining playing start time from the video playing device;
after the video playing device starts playing the video, the current playing time of the video is obtained based on the playing starting time and a preset time interval.
5. The method of claim 4, further comprising:
acquiring local time when the video playing device starts playing the video as local starting time,
wherein the obtaining the current playing time of the video based on the playing start time and a preset time interval includes:
after the video playing device starts playing the video, acquiring local current time at preset time intervals;
determining a current playing time of the video based on the playing start time, the local start time, and the local current time.
6. A video playing control method comprises the following steps:
sending a timeline of a video to a video adjustment device, the timeline comprising start and stop time points of the video;
acquiring control data from the video adjusting device, wherein the control data is determined according to the video playing effect and is used for controlling a video playing device to play the video with the video playing effect;
and playing the video with the playing effect according to the control data.
7. The method of claim 6, wherein:
the control data comprises a play parameter value;
the playing parameter value comprises any one of the following: brightness value, color temperature value, color level value and blurring degree value;
the video playing effect comprises that the playing parameter value of the video changes in any one of the following modes: linear change, step change, smooth change along a specified curve;
the sending the timeline of video to a video adaptation device comprises sending the timeline of video to the video adaptation device over a wireless communication network.
8. The method according to claim 6, wherein the control data comprises a playing parameter value for a current playing time, the playing parameter value for the current playing time being determined according to a playing parameter value input by a user for a specified time point on the timeline and a variation manner of the playing parameter value.
9. The method of claim 8, further comprising:
when the video starts to be played, sending the playing start time of the video to the video adjusting device, wherein the playing start time of the video is used for the video adjusting device to determine the current playing time of the video.
10. The method of claim 7, wherein said obtaining control data from the video adaptation device comprises obtaining a play parameter value for a current play time from the video adaptation device.
11. A video playback control apparatus comprising:
a first acquisition module configured to acquire a timeline of a video from a video playing apparatus, the timeline including start and stop time points of the video;
a presentation module configured to present a timeline of a video;
the second acquisition module is configured to acquire a video playing effect set by a user for the timeline;
a first sending module, configured to send control data to the video playing apparatus, where the control data is determined according to the video playing effect, and is used to control the video playing apparatus to play the video with the video playing effect.
12. A video playback control apparatus comprising:
a second transmitting module configured to transmit a timeline of a video to a video adjusting apparatus, the timeline including start and end time points of the video;
a fourth obtaining module, configured to obtain control data from the video adjusting apparatus, where the control data is determined according to the video playing effect, and is used to control a video playing apparatus to play the video with the video playing effect;
a playing module configured to play the video with the playing effect according to the control data.
13. An electronic device comprising a memory and a processor; wherein the memory is configured to store one or more computer instructions, wherein the one or more computer instructions are executed by the processor to implement the method steps of any of claims 1-10.
14. A readable storage medium having stored thereon computer instructions which, when executed by a processor, carry out the method steps of any of claims 1 to 10.
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