CN110771175A

CN110771175A - Video playing speed control method and device and motion camera

Info

Publication number: CN110771175A
Application number: CN201880031559.7A
Authority: CN
Inventors: 马骏
Original assignee: Shenzhen Dajiang Innovations Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd; Shenzhen Dajiang Innovations Technology Co Ltd
Priority date: 2018-05-30
Filing date: 2018-05-30
Publication date: 2020-02-07
Also published as: WO2019227324A1

Abstract

A control method, a control device and a motion camera of video playing speed are provided, wherein the method comprises the following steps: acquiring characteristic information of a video to be played; adjusting the original playing speed of the corresponding video clip in the video to be played according to the characteristic information; outputting the adjusted video to be played; wherein, each frame in the adjusted corresponding video segment corresponds to at least two timestamps, and the at least two timestamps include a timestamp corresponding to the original playing speed and a timestamp corresponding to the adjusted original playing speed. The method and the device for controlling video playing speed and the motion camera provided by the embodiment realize the diversity of video playing modes.

Description

Video playing speed control method and device and motion camera

Technical Field

The present application relates to the field of video playing technologies, and in particular, to a method and an apparatus for controlling a video playing speed, and a motion camera.

Background

At present, in the playing process of a video, the playing speed is generally kept unchanged, even if some players are provided with a fast or slow playing function, the user needs to manually select the playing speed, and once the playing speed is selected, the player will continue to play the subsequent video at the speed.

Therefore, the existing video playing mode is adopted, and the video playing mode is single.

Content of application

The application provides a method and a device for controlling video playing speed and a motion camera, so as to realize diversity of video playing modes.

In a first aspect, an embodiment of the present application provides a method for controlling a video playing speed, where the method may include:

acquiring characteristic information of a video to be played;

adjusting the original playing speed of the corresponding video clip in the video to be played according to the characteristic information;

outputting the adjusted video to be played;

wherein, each frame in the adjusted corresponding video segment corresponds to at least two timestamps, and the at least two timestamps include a timestamp corresponding to the original playing speed and a timestamp corresponding to the adjusted original playing speed.

In a second aspect, an embodiment of the present application further provides a device for controlling a video playing speed, where the device for controlling a video playing speed may include a processor and a memory;

wherein the memory is used for storing program instructions;

the processor is used for calling and executing the program instruction stored in the memory and executing and acquiring the characteristic information of the video to be played; adjusting the original playing speed of the corresponding video clip in the video to be played according to the characteristic information; outputting the adjusted video to be played;

In a third aspect, an embodiment of the present application further provides a motion camera, where the motion camera may include: the control device for video playing speed according to the second aspect.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for controlling a video playing speed shown in the first aspect is performed.

According to the method and the device for controlling the video playing speed and the motion camera, the characteristic information of the video to be played is acquired; adjusting the original playing speed of the corresponding video clip in the video to be played according to the characteristic information; then, outputting the adjusted video to be played; wherein, each frame in the adjusted corresponding video segment corresponds to at least two timestamps, and the at least two timestamps include a timestamp corresponding to the original playing speed and a timestamp corresponding to the adjusted original playing speed. Therefore, according to the control method and device for the video playing speed and the moving camera, before the adjusted video to be played is output, the original playing speed of the corresponding video clip in the video to be played is adjusted according to the characteristic information, so that each frame in the adjusted corresponding video clip corresponds to at least two timestamps, when the adjusted video to be played is output, the video can be played according to any one timestamp in the at least two timestamps, and the diversity of video playing modes is realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

Fig. 1 is a schematic diagram of a method for controlling a video playing speed according to an embodiment of the present application;

fig. 2 is a schematic diagram of another video playing speed control method according to an embodiment of the present application;

fig. 3 is a schematic diagram of another video playing speed control method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a device for controlling video playback speed according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person skilled in the art based on the examples in this application without any inventive step belong to the protection scope of this application, and the features in the following examples and embodiments can be combined with each other without conflict.

The method for controlling the video playing speed provided by the embodiment of the application can be applied to video playing equipment or video playing equipment with a video recording function, for example, the video playing equipment can be a motion camera, a mobile terminal (such as a mobile phone), an intelligent wearable device, a television or a video recorder with a playing function, and certainly can also be other video playing equipment. In the embodiment of the application, in order to realize the diversity of video playing modes, before playing a video, the characteristic information of the video to be played can be obtained; adjusting the original playing speed of the corresponding video clip in the video to be played according to the characteristic information; then, outputting the adjusted video to be played; wherein, each frame in the adjusted corresponding video segment corresponds to at least two timestamps, and the at least two timestamps include a timestamp corresponding to the original playing speed and a timestamp corresponding to the adjusted original playing speed. Therefore, according to the control method for the video playing speed, before the adjusted video to be played is output, the original playing speed of the corresponding video clip in the video to be played is adjusted according to the characteristic information, so that each frame in the adjusted corresponding video clip corresponds to at least two timestamps, and therefore when the adjusted video to be played is output, the video can be played according to any one timestamp in the at least two timestamps, and the diversity of video playing modes is realized.

In the present embodiment, the following description will be given taking a video playback device as a motion camera as an example. The motion camera has the functions of photographing, recording, playing and the like, can be suitable for recording videos related to motion, and can also be suitable for recording videos during motion. Generally, a motion camera is smaller than a common camera in size so as to be convenient to carry, and meanwhile, the motion camera can be better suitable for a severe environment so as to meet the requirements of shooting in different motion scenes, such as higher waterproofness and capability of recording videos in surfing. Further, the motion camera can be carried on the carrier for shooting, such as being mounted on a bicycle, or can be worn on the body of the user, such as the head, such as the hand, or can be shot by holding the user. Furthermore, other devices can be mounted on the motion camera to enrich the functions and requirements of the motion camera.

Fig. 1 is a schematic diagram of a method for controlling a video playing speed according to an embodiment of the present disclosure, where the method for controlling the video playing speed can be executed by a video playing speed control device, and the video playing speed control device can be independently configured or integrated in a processor. Referring to fig. 1, the method for controlling video playing speed may include:

s101, obtaining characteristic information of a video to be played.

Before the feature information of the video to be played is obtained, the video to be played may be obtained first. When the video to be played is obtained, the video to be played can be obtained from the video recorded and stored locally by the motion camera. Of course, the video to be played may also be acquired by downloading through a motion camera. When the video to be played is obtained locally from the motion camera, for example, the video to be played may be captured by a user holding the motion camera; can also be obtained by mounting the moving camera on a carrier for shooting; the device can also be obtained by wearing a motion camera on the wrist or on the head for shooting; of course, other modes can be adopted, and the embodiments of the present application are only described in these modes as examples, but do not represent that the embodiments of the present application are limited thereto.

The feature information may be understood as information representing features of a video to be played. Optionally, the feature information includes at least one of associated motion data when the video to be played is shot, interest marker information input by the user for the video to be played, and content information of the video to be played, and of course, other information indicating the feature of the video to be played may also be used. Here, the embodiment of the present application is described by taking at least one of feature information that may be associated motion data when a video to be played is captured, interest marker information input by a user for the video to be played, and content information of the video to be played as the feature information, but the present application is not limited thereto.

And S102, adjusting the original playing speed of the corresponding video clip in the video to be played according to the characteristic information.

After the feature information of the video to be played is obtained in S101, the original playing speed of the corresponding video segment in the video to be played can be adjusted according to the feature information, so as to obtain the adjusted original playing speed of the corresponding video segment.

The video to be played may include multiple frames of images, and each frame of image may correspond to a timestamp. When the video to be played is played, the corresponding image frame can be played according to the corresponding timestamp. In the video to be played, according to different requirements, part of the video clips can be played in an accelerated mode, part of the video clips can be played in a slowed mode, and part of the video can be played at the original playing speed. When the playing speed of the video to be played is adjusted, the playing speed can be achieved by adjusting the time stamp of the corresponding image frame. For example, if in the video to be played, the fifth frame image is played for the 3 rd second, and the sixth frame image is played for the 4 th second, when the sixth frame image is adjusted to be played for the 5 th second, the fifth frame image may be kept for 1 second more, that is, the original playing speed of the video segment of the fifth frame image to the sixth frame image is slowed down, and when the sixth frame image is adjusted to be played for the 3.5 th second, the fifth frame image may be kept for 0.5 second less, that is, the original playing speed of the video segment of the fifth frame image to the sixth frame image is accelerated. Therefore, the adjustment of the original playing speed of the corresponding video segment in the video to be played can be realized by adjusting the timestamp corresponding to each image frame in the corresponding video segment.

In this embodiment, by analyzing the feature information of the video to be played, a corresponding video segment of the video to be played, for which the original playing speed needs to be adjusted, may be determined, and the corresponding video segment may be associated with the feature information according to the playing requirement, so that different definitions may be performed on the feature information according to the requirement. The definition rule of the feature information may be set before the moving camera leaves the factory, or may be customized by the user.

Optionally, in this embodiment, the feature information may be at least one of associated motion data, interest marker information input by a user for a video to be played, and content information of the video to be played.

For example, when the characteristic information is associated motion data, the corresponding video segment may be a segment of video with a large change in the associated motion data, such as a video segment with a relatively fast and/or slow speed in the associated motion data; when the feature information is interest marker information, the corresponding video segment may be a video segment in which a user is interested and/or a video segment in which a user is not interested, and of course, the embodiment of the present application only takes the two examples of determining the corresponding video segment according to the feature information as an example, but the embodiment of the present application is not limited thereto.

After determining the corresponding video segment needing to be adjusted in the video to be played according to the characteristic information, the original playing speed of the corresponding video segment can be increased or decreased.

For example, when the characteristic information is associated motion data and the speed thereof is fast, the playing speed of the corresponding video segment can be slowed down; when the characteristic information is the associated motion data and the speed is lower, the playing speed of the corresponding video clip can be increased; when the feature information is interest mark information and indicates that the feature information is of interest to the user, the playing speed of the corresponding video clip can be reduced; when the characteristic information is interest mark information and the user is not interested, the playing speed of the corresponding video clip can be increased; of course, the embodiments of the present application are only described by taking these several modifications as examples, but do not represent that the embodiments of the present application are limited thereto.

It should be noted that, for different feature information, the adjustment values of the original playing speeds of the corresponding video segments may be different, for example, even if the original playing speeds are all increased, the increased original playing speeds may be different. Or, for the feature information with the same attribute, if the feature information is associated motion data, if the speeds in the associated motion data are different, the adjustment values of the original playing speeds of the corresponding video segments are different. The adjustment value of the original playing speed of the corresponding video clip may be set as required, and is not specifically limited herein.

It is to be understood that, when the original playing speed of the corresponding video segment is adjusted according to the feature information, each frame in the corresponding video segment may correspond to at least one timestamp adjusted by the feature information, for example, if the original playing speed of the a image frame needs to be adjusted, when the original speed of the a image frame is adjusted according to the feature information, the a image frame may correspond to different timestamps determined by the feature information according to different adjustment values, and the number and value of the adjustment values may be set as needed.

Optionally, in this embodiment of the application, when the feature information includes interest tag information, associated motion data, and content information, an original playing speed of a corresponding video segment in the video to be played may be adjusted by using one of the feature information, or the original playing speed of the corresponding video segment in the video to be played may be adjusted only according to the interest tag information, that is, the priority of the interest tag information is higher than that of the associated motion data and the content information. Of course, when the original playing speed of the corresponding video segment in the video to be played is adjusted according to the feature information, the original playing speed of the corresponding video segment in the video to be played may also be adjusted according to any two or three feature information of the associated motion data of the video to be played, the interest mark information input by the user for the video to be played, and the content information of the video to be played, and when the original playing speed of the corresponding video segment in the video to be played is adjusted according to any two or three feature information, the original playing speed of the video segment in the video to be played may be adjusted according to the preset rule and the feature information, for example, the weight occupied by the interest mark information and the content information of the video to be played in the process of adjusting the original playing speed of the corresponding video segment in the video to be played may be determined according to the preset rule, so as to obtain the interest mark, And the weight occupied by each characteristic information in the content information of the video to be played adjusts the original playing speed of the corresponding video clip in the video to be played.

The preset rule may be set by the user before the moving camera leaves the factory, or may be set by the user after the moving camera leaves the factory.

It can be understood that, when the original playing speed of the corresponding video segment in the video to be played is adjusted according to the feature information, if a preset rule exists, the original playing speed of the corresponding video segment can be adjusted according to the preset rule, that is, the priority of the preset rule is the highest, and if the feature information includes the interest marker information, the original playing speed of the corresponding video segment can be adjusted according to the interest marker information. The priority of the interest mark information can also be greater than the priority of a preset rule; of course, the respective weights of the preset rule and the interest marker information may also be preset to adjust the original playing speed of the corresponding video segment, and the embodiment of the present application is not limited specifically herein.

After the original playing speed of the corresponding video segment in the video to be played is adjusted according to the feature information through S102, the following S103 may be performed:

and S103, outputting the adjusted video to be played.

After the original playing speed of the corresponding video segment in the video to be played is adjusted according to the feature information through S102, the adjusted video to be played can be obtained, and at this time, each frame in the corresponding video segment in the video to be played corresponds to at least two timestamps. Taking two timestamps corresponding to each frame in the corresponding video clip of the video to be played as an example, the two timestamps corresponding to each frame in the corresponding video clip of the video to be played are: a timestamp T1 corresponding to the original playing speed, and an adjusted original playing speed T2. Therefore, when the adjusted video to be played is output, the video to be played can be played according to any one of the two timestamps T1 and T2, and diversity of video playing modes is achieved.

Each frame in the adjusted corresponding video segment may also correspond to a timestamp other than timestamps T1 and T2, where the timestamp may be a timestamp customized by the user, or may be a timestamp determined in other manners, as determined according to the historical play record of the video related to the video to be played by the user, and is not specifically limited herein. Meanwhile, besides the corresponding video segment in the video to be played, each frame in other video segments in the video to be played may also correspond to at least one timestamp, and the at least one timestamp may be a timestamp corresponding to the original playing speed, may also be a timestamp customized by the user, and may also be a timestamp determined in other manners, for example, determined according to the historical playing record of the video related to the video to be played by the user, which is not specifically limited here.

Therefore, after the original playing speed of the corresponding video segment in the video to be played is adjusted according to the feature information, for the video to be played, it is possible that a part of the video segment is accelerated playing, a part of the video segment is played according to the original playing speed, and a part of the video segment is decelerated playing, so that the playing speed of the video to be played can be adaptively adjusted according to the feature information, and a user does not need to manually or repeatedly manually adjust the original playing speed of the video to be played, and the playing speed of the adjusted video to be played is not constant.

In this embodiment of the application, outputting the adjusted to-be-played video may include storing the adjusted to-be-played video or playing the adjusted to-be-played video. The storage medium is specifically used for storage, playing after storage, or directly playing after output, and can be set and adjusted according to specific needs, which is not specifically limited herein.

It should be noted that, in the embodiment of the present application, by storing the adjusted video to be played, the purpose of the method is to: when the video to be played is played subsequently, the feature information of the video to be played does not need to be extracted repeatedly, and the original playing speed of the corresponding video clip in the video to be played is adjusted according to the feature information, so that the complexity of operation is reduced, the processing resource for the feature information of the video to be played is reduced, and the playing efficiency of the adjusted video to be played is improved.

The method for controlling the video playing speed, provided by the embodiment of the application, before outputting the adjusted to-be-played video, firstly obtains the characteristic information of the to-be-played video, and adjusts the original playing speed of the corresponding video clip in the to-be-played video according to the characteristic information, so that each frame in the adjusted corresponding video clip corresponds to at least two timestamps, and thus, when the adjusted to-be-played video is output, the video can be played according to any one of the at least two timestamps, and the diversity of video playing modes is realized.

It should be noted that, in the embodiment shown in fig. 1, when the feature information of the video to be played is obtained and the original playing speed of the corresponding video segment in the video to be played is adjusted according to the feature information, the feature information of the video to be played can be obtained in the shooting process of the video to be played, and the original playing speed of the corresponding video segment in the video to be played is adjusted according to the feature information; of course, after the video shooting is completed, the feature information of the video to be played can be obtained before the video to be played is played, and the original playing speed of the corresponding video clip in the video to be played can be adjusted according to the feature information. In the following, how to output the adjusted video to be played in two different time periods will be described in detail through the embodiments shown in fig. 2 and fig. 3.

Based on the embodiment shown in fig. 1, when feature information of a video to be played is obtained in a shooting process of the video to be played, and an original playing speed of a corresponding video segment in the video to be played is adjusted according to the feature information, please refer to fig. 2, where fig. 2 is a schematic diagram of another method for controlling a video playing speed provided by the embodiment of the present application, and the method for controlling a video playing speed may include:

s201, in the shooting process of the video to be played, acquiring the characteristic information of the video to be played.

The feature information may be understood as information representing features of a video to be played. When the video to be played is obtained, the video to be played can be obtained from the video recorded and stored locally by the motion camera. Of course, the video to be played may also be acquired by downloading through a motion camera. When the video to be played is obtained locally from the motion camera, for example, the video to be played may be captured by a user holding the motion camera; can also be obtained by mounting the moving camera on a carrier for shooting; the device can also be obtained by wearing a motion camera on the wrist or on the head for shooting; of course, other modes can be adopted, and the embodiments of the present application are only described in these modes as examples, but do not represent that the embodiments of the present application are limited thereto.

For example, taking a moving camera as an example, in the process of shooting a video by using the moving camera, feature information of several frames of images can be acquired every time the several frames of images are shot; or when the shooting time reaches a certain preset time length, acquiring the characteristic information of the video within the preset time length; of course, the feature information of the video to be played can be obtained according to other conditions in the shooting process of the video to be played; here, the embodiments of the present application are only described by way of example in these two ways, but do not represent that the embodiments of the present application are limited thereto.

S202, when the playing speed mode of the video to be played is a speed-regulating playing mode or a speed-selecting playing mode, adjusting the original playing speed of the corresponding video clip in the video to be played according to the characteristic information.

The speed-adjusting play mode or the speed-selecting play mode can be understood as a mode of playing according to a timestamp corresponding to the adjusted original play speed.

For example, a play speed mode of a video to be played may be set in a moving camera. For example, the play speed mode may include at least one of an original play mode, an original play mode and a speed-adjustable play mode, an original play mode and a speed-selectable play mode, a speed-adjustable play mode or a speed-selectable play mode, or an original play mode, a speed-adjustable play mode, and a speed-selectable play mode. The original playing mode is a mode for playing according to the original playing speed; adjusting the playing mode to be a playing mode according to the adjusted original playing speed (namely, a playing mode different from the original playing speed); the speed-selecting playing mode is that when the user plays the video to be played, the motion camera can prompt the user to select the playing speed of the video to be played, if the video is played according to the original playing speed, the video is played according to the adjusted original playing speed.

Therefore, in the two speed playing modes, i.e., the speed-adjustable playing mode or the speed-selective playing mode, there is a possibility that the video is played according to the timestamp corresponding to the adjusted original playing speed, so that the original playing speed of the corresponding video segment in the video to be played can be adjusted in advance according to the feature information, and when the video to be played needs to be played at the timestamp corresponding to the adjusted original playing speed, the corresponding timestamp can be selected for playing.

In addition, since each frame in the adjusted corresponding video segment corresponds to at least two timestamps, when the video to be played is played, one timestamp can be selected from the at least two timestamps of each frame in the corresponding video segment according to a preset rule for playing. In this embodiment, if it is required to play the corresponding video segment in the video to be played at a playing speed different from the original playing speed, preferably, the corresponding video segment may be played according to the timestamp corresponding to the feature information. Meanwhile, when the playing speed mode of the video to be played is the speed-selecting playing mode and the user needs to play the corresponding video clip in the video to be played at the playing speed different from the original playing speed, the user can be further prompted to select one time stamp from the time stamps corresponding to the original playing speed for playing. Of course, when any one of the above play speed modes is not preset, the feature information of the video to be played may be obtained by default when the moving camera shoots, and the original play speed of the corresponding video segment in the video to be played is adjusted according to the feature information.

It should be noted that, in the step S202, the implementation manner of adjusting the original playing speed of the corresponding video segment in the video to be played according to the feature information may refer to the description in S102, and herein, the description is not repeated herein.

And S203, outputting the adjusted video to be played.

It should be noted that, in the embodiment of the present application, there may be three possible implementation manners for outputting the adjusted video to be played in S203:

in a possible implementation manner, when a play trigger event of a video to be played is detected, the adjusted video to be played is played according to a timestamp corresponding to the adjusted original play speed.

The playing triggering event may be entering a video playing interface of the video to be played, or clicking a playing button indicating the playing of the video to be played, or of course, may also be triggering another event of the video to be played. For example, the playing of the video to be played may be triggered by a voice or text input method, or a video playing function of the motion camera may be started by touching a display screen of the motion camera (e.g., a virtual key), or certainly, the playing of the video to be played may be triggered by a gesture (without touching the display screen).

When a play trigger event of the video to be played is detected, the adjusted video to be played can be played according to the timestamp corresponding to the adjusted original play speed. Therefore, the original playing speed of the video to be played does not need to be adjusted manually by a user, the playing speed of the corresponding video clip in the video to be played has multiple possibilities, and self-adaptive adjustment can be carried out according to the characteristic information, so that the diversity of video playing modes is favorably realized.

In another possible implementation manner, when a play trigger event of the video to be played is detected, the adjusted video to be played is played according to a user operation instruction, where the user operation instruction is used to indicate a play speed mode of the adjusted video to be played.

Similarly, the play trigger event may be entering a video play interface of the video to be played, or clicking a play button indicating the play of the video to be played, or of course, may also be another event triggering the play of the video to be played. For example, the playing of the video to be played may be triggered by a voice or text input method, or a video playing function of the motion camera may be started by touching a display screen of the motion camera (e.g., a virtual key), or certainly, the playing of the video to be played may be triggered by a gesture (without touching the display screen).

As described above, the playing speed mode of the video to be played after the adjustment indicated by the user operation instruction may be a speed-adjusting playing mode, a speed-selecting playing mode, or an original playing mode. It should be noted that the user operation instruction may be input before shooting the video to be played, may also be input when shooting the video to be played, and may also be input after shooting the video to be played and before playing the video to be played. For example, when a user operation instruction is input, the user operation instruction may be input to the motion camera by touching a screen of the motion camera, may be input to the motion camera by pressing an operation button provided on the screen by the motion camera, may be input to the motion camera by voice, or may be input to the motion camera by text, so that the motion camera acquires the user operation instruction.

For example, if the play speed mode is a speed-adjustable play mode and each frame in the adjusted corresponding video segment corresponds to an adjusted timestamp, the video to be played can be directly played according to the adjusted timestamp when the video to be played is triggered to be played each time; if the playing speed mode is the speed-selecting playing mode, when the video to be played is triggered to be played each time, the user can be further prompted to select one timestamp from the at least two timestamps to play the video to be played; if the playing speed mode is the original playing mode, the video to be played can be played directly according to the timestamp corresponding to the original playing speed when the video to be played is triggered to be played each time.

When a play trigger event of a video to be played is detected, the adjusted video to be played is played according to a user operation instruction, and the user operation instruction is used for indicating the play speed mode of the adjusted video to be played, so that the video to be played can be played according to the corresponding play speed in different play speed modes, the diversity of video play modes is favorably realized, the diversity of user selection is also provided, and different play requirements are favorably met.

In another possible implementation manner, when a play trigger event of a video to be played is detected, prompting selection information aiming at the adjusted play speed mode of the video to be played; receiving a selection instruction input by a user according to the selection information, and determining a target timestamp in at least two timestamps; and playing the adjusted video to be played according to the target timestamp.

For example, the selection instruction may be input to the motion camera by touching a screen of the motion camera, may be input to the motion camera by pressing an operation button provided on the screen by the motion camera, may be input to the motion camera by voice, or may be input to the motion camera by text, so that the motion camera acquires the selection instruction.

In this embodiment, the selection of the speed playing mode may include playing the video to be played at an original speed, or playing the video to be played at a speed different from the original speed. When the user selects to play the video to be played at a speed different from the original playing speed, the user can be further prompted to select a corresponding timestamp from timestamps corresponding to the original playing speed to play the video to be played.

The prompt information can be prompted in a display screen display mode, can also be prompted in a voice output mode, and can also be prompted in a photoelectric mode.

When detecting a play trigger event of a video to be played, the motion camera can prompt a user with selection information for the adjusted play speed mode of the video to be played, and correspondingly, the user can input a selection instruction according to the selection information and determine a target timestamp in at least two timestamps according to the selection instruction; and playing the adjusted video to be played according to the target timestamp. Therefore, when the video to be played is played, the speed playing mode of the video to be played can be conveniently adjusted by a user according to the current playing requirement, and the speed playing mode can be conveniently changed when the different video to be played is played, so that the switching setting of the speed playing mode is not required to be additionally carried out, and the instant selectivity of the speed playing mode of the video to be played by the user can be favorably improved.

The above-mentioned embodiment shown in fig. 2 describes in detail the feature information of the video to be played obtained in the video capturing process, and adjust the original playing speed of the corresponding video segment in the video to be played according to the characteristic information, which will be described in detail below after the video shooting is completed, the technical solution of obtaining the feature information of the video to be played before playing the video, and adjusting the original playing speed of the corresponding video segment in the video to be played according to the feature information (i.e. obtaining the feature information of the video to be played when the playing trigger event of the video to be played is detected, and adjusting the original playing speed of the corresponding video segment in the video to be played according to the feature information) is, based on the embodiment shown in fig. 1, please refer to fig. 3, fig. 3 is a schematic diagram of another method for controlling a video playback speed according to an embodiment of the present application, where the method for controlling the video playback speed includes:

s301, recording the characteristic information of the video to be played in the shooting process of the video to be played.

For example, in the embodiment of the present application, when recording the feature information of the video to be played, the feature information of the video to be played may be recorded when starting to shoot the video to be played, or the feature information of the video to be played may be recorded every several frames during shooting, or may be recorded after being triggered by a user during shooting.

Thus, in the embodiment of the present application, by recording the feature information of the video to be played in the video shooting process, when the feature information of the video to be played is obtained in the following S302, according to the association between the video to be played and the feature information thereof, the feature information thereof can be conveniently searched, and the feature information of only a part of video segments can be obtained as needed, without extracting the feature information of the video to be played when a play trigger event of the video to be played is detected, thereby improving the obtaining efficiency of the feature information of the video to be played.

S302, when a playing trigger event of the video to be played is detected, acquiring the characteristic information of the video to be played.

In this embodiment, different from the embodiment shown in fig. 2, the feature information of the video to be played may be obtained when the video to be played is triggered to be played. Therefore, before the video to be played is not played, the original playing speed of the corresponding video clip in the video to be played can not be adjusted, so that under the condition that the video to be played is not played possibly, the waste of processing resources of the motion camera can be avoided, and when the video to be played needs to be played, the original playing speed of the corresponding video clip in the video to be played can be adjusted according to the characteristic information.

And S303, when the playing speed mode of the video to be played is a speed-regulating playing mode or a speed-selecting playing mode, adjusting the original playing speed of the corresponding video clip in the video to be played according to the characteristic information.

The speed-regulating playing mode is a playing mode according to the timestamp corresponding to the adjusted original playing speed, and the speed-selecting playing mode is a playing mode possibly according to the timestamp corresponding to the adjusted original playing speed. Therefore, in the two speed playing modes, the original playing speed of the corresponding video clip in the video to be played can be adjusted in advance according to the characteristic information, so that when the video to be played needs to be played with the timestamp corresponding to the adjusted original playing speed, the corresponding timestamp can be selected for playing.

It is to be understood that, the description of the playing speed mode of the video to be played in step S303 may refer to the description in S202, and details of this application are not repeated herein.

It should be noted that, in step S303, the implementation manner of adjusting the original playing speed of the corresponding video segment in the video to be played according to the feature information may refer to the description in S102, and herein, the description is not repeated herein.

And S304, playing the adjusted video to be played according to the timestamp corresponding to the adjusted original playing speed.

After the original playing speed of the corresponding video segment in the video to be played is adjusted according to the feature information through the above S303 to obtain the adjusted original playing speed, the adjusted video to be played can be played according to the timestamp corresponding to the adjusted original playing speed. Therefore, the original playing speed of the video to be played does not need to be adjusted manually by a user, the playing speed of the corresponding video clip in the video to be played has multiple possibilities, and self-adaptive adjustment can be carried out according to the characteristic information, so that the diversity of video playing modes is favorably realized.

Based on the embodiments corresponding to fig. 1, fig. 2, or fig. 3, in order to more clearly illustrate how to adjust the original playing speed of the corresponding video segment in the video to be played according to the feature information in the embodiments of the present application, how to adjust the original playing speed of the corresponding video segment in the video to be played according to the feature information will be described in detail below in several possible ways.

In a first possible implementation, when the characteristic data is associated motion data, the associated motion data may comprise acceleration data and/or angular velocity data in one or more directions of the camera and/or of the vehicle of the camera and/or of the mount of the camera, which may be used to capture a video to be played. Correspondingly, the adjusting the original playing speed of the corresponding video segment in the video to be played according to the feature information in S102 may include:

if the acceleration data is smaller than a first threshold and/or the angular acceleration data is smaller than a second threshold, the original playing speed of the corresponding video clip in the video to be played is increased; and if the acceleration data is greater than a third threshold and/or the angular acceleration data is greater than a fourth threshold, slowing down the original playing speed of the corresponding video clip in the video to be played.

The sizes of the first threshold, the second threshold, the third threshold, and the fourth threshold may be set according to actual needs, and the embodiments of the present application are not further limited to the sizes of the first threshold, the second threshold, the third threshold, and the fourth threshold.

The acceleration data and/or the angular velocity data may be data on at least one of the X, Y, Z axes, and may also be data in other directions. The motion data of the camera, the carrier of the camera and/or the mount of the camera in the at least one direction may affect the picture of the video to be played when the camera is shaken up and down, for example, when the camera is shaken up and down, the corresponding video segment in the video to be played may also be shaken up and down. Therefore, the original playing speed of the corresponding video clip in the video to be played is adjusted according to the corresponding acceleration data and/or angular velocity data, so that the video clip which is not emphasized can be quickly filtered, and part of the video clip can be emphasized to acquire more video information.

For example, when a user sits in an automobile and takes a video by holding a motion camera in hand, and when the automobile is in a slow-speed driving state, the acceleration data may be smaller than a first threshold value, which indicates that the video taken by the user in the period of time does not change much, and the original playing speed of the corresponding video clip taken in the period of time can be correspondingly increased; when the automobile is in a sudden braking state, the acceleration data of the automobile may be larger than a third threshold, which indicates that the video shot by the user in the period of time has a large change, and the original playing speed of the corresponding video clip shot in the period of time can be correspondingly reduced.

Or, when a user sits in the automobile and holds the motion camera to shoot the video, when the automobile is in a turning state, the original playing speed of the corresponding video clip can be increased or decreased according to the size relation between the angular acceleration and the second threshold or the fourth threshold.

In a second possible implementation manner, when the feature data is interest marker information, and the interest marker information is used to indicate a degree of interest of a user, the interest marker information may be recorded in a shooting process of a video to be played or recorded in a historical playing process of the video to be played, and correspondingly, adjusting the original playing speed of a corresponding video segment in the video to be played according to the feature information in S102 may include: if the interest mark information meets the first condition, the interest degree of the user is not high, and the original playing speed of the corresponding video clip in the video to be played can be increased; if the interest mark information meets the second condition, it means that the interest degree of the user is higher, and the original playing speed of the corresponding video clip in the video to be played can be slowed down.

Wherein the first condition is used for indicating that the interest degree of the user is not high; the second condition is used to indicate that the user is of a higher level of interest. When the interest mark information is used for indicating the interest degree of the user, a mark rule can be preset so as to represent different interest degrees of the user according to different interest mark information, for example, if a square pattern represents that the user is not interested and a heart-shaped pattern represents that the user is interested, the corresponding interest mark information can be the square pattern or the heart-shaped pattern; when the interest mark information is a square pattern, the interest degree of the user is low, and a first condition is met, the original playing speed of the corresponding video clip in the video to be played is increased, so that the corresponding video clip in the video to be played is quickly played; on the contrary, when the interest mark information is a heart-shaped pattern, the interest degree of the user is extremely high, and the second condition is met, the original playing speed of the corresponding video clip in the video to be played is slowed down, and the corresponding video clip in the video to be played is played fast in a slow playing mode; of course, the embodiments of the present application are only described by way of examples in these two ways, but do not represent that the embodiments of the present application are limited to these. In addition, it should be noted that, for a segment without setting the interest flag information, it may default to be generally interested by the user, and the corresponding video segment may be played at the original playing speed.

The corresponding video clip corresponding to the interest marker information may be a section of video before and after the interest marker information is marked, a section of video before the interest marker information is marked, a section of video between two times of interest marker information marking, or a section of video corresponding to the occupied time length during the interest marker information.

For example, when a user plays a movie video, if the user does not like the first segment in the movie video, the user may mark a square pattern at least one time point in the first segment; if the user prefers the second segment of the movie video, the user can mark the heart-shaped pattern at least one time point in the second segment, and the above-mentioned mark information can be preserved. Therefore, when the movie video is replayed, the movie video can be played according to the interest mark information, namely the original playing speed of the first segment is correspondingly increased, so that the first segment is played quickly, and therefore a user can quickly play the first segment which is not interested by the user; and correspondingly slowing down the original playing speed of the second segment, so that the second segment is slowly played, the user can enjoy the second segment in enough time, the interest of the user is met, and the user experience is improved.

In addition, it should be noted that, in the playing process of the video to be played, the interest mark information may be displayed. The interest mark information is displayed in the playing process of the video to be played, so that when a user watches the video to be played, the interest mark information corresponding to the corresponding video segment in the video to be played can be synchronously acquired, and the user can visually determine the segments which are interesting and uninteresting in the video to be played according to the interest mark information; in addition, when the video to be played is replayed, the user can conveniently edit according to the interest mark information to obtain new interest mark information, and the video to be played can be replayed according to the new interest mark information.

For example, the interest identification information may indicate that the user is interested, may indicate that the user is not interested, or may indicate that the user is generally interested, and for a segment that the user is interested in, the original playing speed of the segment may be slowed down; for the segments which are not interested by the user, the original playing speed of the segments can be increased; for a segment of general interest, the original play speed of the segment may continue to be maintained.

Optionally, when the interest mark information is displayed, the interest mark information may be displayed on a playing progress bar of a video to be played, or the interest mark information may be displayed on a display screen of the motion camera, such as an upper left corner or an upper right corner, or of course, the interest mark information may be displayed in other manners.

Further, when the interest mark information is displayed, the interest mark information can be displayed through color, for example, a video corresponding to a red segment represents that the user is interested, and a blue segment represents that the user is not interested; the interest mark information can also be displayed through patterns, for example, a corresponding segment between two heart-shaped patterns represents interest of a user, and a corresponding segment between two square-shaped patterns represents disinterest of the user; of course, there are other ways, and the embodiments of the present application are only described by taking these two examples, but do not represent that the embodiments of the present application are limited to these examples.

It should be noted that, when the interest of the user changes, for example, when the user generates an interest in a fourth segment that is not interested before, the original playing speed of the fourth segment needs to be correspondingly adjusted, so as to play the fourth segment slowly. For example, when the interest marker information is edited through the re-editing command, taking the interest marker information displayed through the progress bar as an example, the interest marker information on the progress bar may be dragged or modified, for example, a square pattern corresponding to the interest marker information is modified into a heart-shaped pattern, and the interest marker information is dragged from a point a to a point B on the progress bar, or alternatively, a point C on the progress bar may be clicked, and a point D on the progress bar may be clicked, so as to edit a video clip corresponding to the point C and the point D.

In a third possible implementation manner, when the feature information is content information, the content information includes motion feature information of a target object in a video to be played, and the motion feature information at least includes motion posture information of the target object, when an original playing speed of a corresponding video segment in the video to be played is adjusted according to the motion feature information of the target object in the video to be played, a motion scene in the video to be played needs to be determined first, and then the original playing speed of the corresponding video segment in the video to be played is adjusted according to the motion posture information and the motion scene.

Optionally, in this embodiment of the present application, the motion scene in the video to be played may be determined in at least two possible ways.

Mode 1, receiving input information of a user aiming at a motion scene; and determining the motion scene in the video to be played according to the input information.

For example, taking a certain section of a diving video as an example, when determining a motion scene in a video to be played, a user may edit the diving video in advance, and mark the motion scene of the diving video as the diving scene, so that after receiving the diving scene input by the user, the motion camera may determine the motion scene in the video to be played according to the diving scene input by the user. Of course, the motion camera may also store a plurality of motion scenes in advance, and the user may select among the plurality of motion scenes and input selection information to the motion camera, so that the motion camera determines the motion scene in the video to be played according to the selection information input by the user.

Mode 2: matching image features in a video to be played with image features in a preset motion scene; and determining the motion scene in the video to be played according to the matching result.

For example, similarly, taking a certain section of diving video as an example, when determining a motion scene in a video to be played, image features in the video to be played may be extracted first, and the image features may be matched with image features in a preset motion scene. If the first frame image, the tenth frame image and the thirtieth frame image in the video to be played are respectively extracted, the image characteristics can be matched with the image characteristics in the preset motion scene, if the first frame image is matched with the image of the take-off of the athlete in the diving scene, the twentieth frame image is matched with the image of the roll of the athlete in the diving scene in the air, and the thirtieth frame image is matched with the image of the water entering of the athlete in the diving scene, the motion scene of the video to be played can be determined to be the diving scene according to the matching result, otherwise, the motion scene can be continuously matched with the characteristics in other preset motion scenes.

If the image characteristics in the video to be played cannot be matched with the image characteristics in the preset motion scene, a corresponding prompt can be made for the user to prompt the user to input the motion scene, or prompt the user that the matching is wrong, or change the matching strategy to match again.

It should be noted that the present application is illustrated only by way of examples of the above two modes, but the present application is not limited to these examples.

After determining the motion scene in the played video in the two manners, correspondingly, adjusting the original playing speed of the corresponding video segment in the video to be played according to the feature information in S102 may include:

determining the motion state of the target object in the motion scene according to the motion characteristic information; and the original playing speed of the corresponding video clip in the video to be played is accelerated or decelerated according to the motion state.

In different sports scenes, different wonderful segments are of great concern to users, for example, in a basketball game scene, a shooting state attracts eyes of people, in a diving game scene, a water entering state attracts eyes of people, in a football game, a goal state attracts eyes of people, and of course, some segments can be ignored for users. Therefore, in different motion scenes, the corresponding video segment in the video to be played can be determined and adjusted according to different motion states, and the original playing speed of the corresponding video segment can be adjusted.

Similarly, taking a certain section of diving video as an example, if the motion state of the athlete in the diving scene is determined to be the take-off state according to the motion posture information of the user, the original playing speed of the video segment corresponding to the take-off state is increased, so that the video segment corresponding to the take-off state is played quickly; if the motion state of the athlete in the diving scene is determined to be the underwater state according to the motion posture information of the user, the original playing speed of the video clip corresponding to the underwater state is slowed down, so that the video clip corresponding to the underwater state is slowly played, the user can have enough time to enjoy the wonderful moment when the athlete enters the water, and the user experience is improved.

It should be noted that the motion characteristic information may further include, but is not limited to, motion amplitude information, motion speed information, and the like of the target object, so that when determining the motion state of the target object in the motion scene through the motion characteristic information of the target object, the motion state information may not only be utilized, which is beneficial to improving the accuracy of determining the motion state.

In a fourth possible implementation manner, when the feature information is content information, the content information includes environment information in the video to be played, and the environment information includes environment brightness, correspondingly, adjusting the original playing speed of a corresponding video segment in the video to be played according to the feature information in S102 may include:

if the ambient brightness is smaller than the fifth threshold, the original playing speed of the corresponding video clip in the video to be played is accelerated or decelerated according to a first preset rule; and if the ambient brightness is greater than the sixth threshold, the original playing speed of the corresponding video clip in the video to be played is increased or decreased according to a second preset rule.

The sizes of the fifth threshold and the sixth threshold may be set according to actual needs, and herein, the size of the fifth threshold and the size of the sixth threshold are not further limited in the embodiment of the present application.

In an example, taking a case solving or investigation scene as an example, the corresponding video to be played is a criminal case video of the suspected person, if the suspected person makes a criminal case at night, the ambient brightness of the corresponding criminal case video is low, and when the ambient brightness is smaller than a fifth threshold and the corresponding first preset rule is that the video needs to be carefully watched, the original playing speed of the corresponding video segment in the criminal case video can be reduced, so that the corresponding video segment is slowly played, and thus the criminal person or the investigation person can more clearly check the passage of the suspected case. When the ambient brightness is smaller than the fifth threshold and the corresponding first preset rule is that the video does not need to be watched carefully, the original playing speed of the corresponding video clip in the crime-making video can be increased, so that the corresponding video clip is played quickly. The opposite is true; when the ambient brightness is greater than the sixth threshold value and the corresponding second preset rule is that the video does not need to be watched carefully, the original playing speed of the corresponding video clip in the crime video can be increased, so that the corresponding video clip is played quickly; when the ambient brightness is greater than the sixth threshold value and the corresponding second preset rule is that the video needs to be watched carefully, the original playing speed of the corresponding video segment in the criminal video can be reduced, so that the corresponding video segment is played slowly, and thus a criminal or a reconnaissance person can check the criminal passage of a suspect more clearly.

Of course, it is understood that the first preset rule and/or the second preset rule may also be set for different video needs, for example, when the video to be played is a video for viewing, under the condition of the first preset rule, if the ambient brightness in the video to be played is less than the fifth threshold, it means that the corresponding video segment has no viewing value, then the corresponding video segment with the ambient brightness less than the fifth threshold in the video to be played may be fast played.

In addition, it should be noted that the original playing speed of the corresponding video segment can be determined to be increased or decreased according to the change of the ambient brightness in the corresponding video segment in the video to be played. For example, when the change of the ambient brightness in the corresponding video segment in the video to be played is larger than a certain threshold, the user's eyes need to adapt to the sudden transition of the ambient brightness, and therefore, the related information of some image frames in the corresponding video segment may be ignored. Accordingly, the original play speed of the corresponding video segment can be slowed down, thereby slowing down the playing of the corresponding video segment. Of course, when the change of the ambient brightness in the corresponding video segment in the video to be played is smaller than a certain threshold, the user's eyes do not need to adapt to the sudden transition of the ambient brightness. Therefore, the original playing speed of the corresponding video segment can be increased, so that the corresponding video segment can be played quickly.

In a fifth possible implementation manner, when the feature information is content information, and the content information includes a video scene in a video to be played; correspondingly, the adjusting the original playing speed of the corresponding video segment in the video to be played according to the feature information in S102 may include:

if the video scene is a violent change scene, slowing down the original playing speed of a corresponding video clip in the video to be played; and if the video scene is a slowly-changing scene, accelerating the original playing speed of the corresponding video clip in the video to be played.

In an example, a video scene is taken as a swing video of a ceiling lamp when an earthquake occurs, when the corresponding ceiling lamp swings violently in the earthquake, the video scene corresponding to the corresponding video clip is a violent change scene, and the original playing speed of the video clip corresponding to the violent change scene can be reduced, so that a user can have enough time to watch the swing condition of the ceiling lamp, and the earthquake condition can be indirectly obtained. After an earthquake, if there is aftershock, the corresponding ceiling lamp swings slowly, the video scene corresponding to the corresponding video clip is a slowly changing scene, and the original playing speed of the video clip corresponding to the severely changing scene can be increased.

In a sixth possible implementation manner, when the feature information indicates that the internal tolerance of the first image frame and the second image frame in the video to be played is different, correspondingly, the adjusting the original playing speed of the corresponding video segment in the video to be played according to the feature information in S102 may include:

detecting content difference of a first image frame and a second image frame in a video to be played according to content information, wherein the first image frame and the second image frame are separated by a preset frame number of image frames; if the content difference is larger than a seventh threshold value, determining that the video scene is a violent change scene according to the first image frame and the second image frame, and slowing down the original playing speed of a corresponding video clip in the video to be played; if the content difference is smaller than the eighth threshold, the video scene determined according to the first image frame and the second image frame is a slow change scene, and the original playing speed of the corresponding video clip in the video to be played is increased.

The size of the seventh threshold and the size of the eighth threshold may be set according to actual needs, and herein, the size of the seventh threshold and the size of the eighth threshold are not further limited in the embodiment of the present application.

Optionally, in the embodiment of the present application, the content difference may be a position change of the target object in the first image frame and the second image frame in the image frames; the area change of the target object in the first image frame and the second image frame can also be the area change of the target object in the image frames; of course, the embodiments of the present application are only described by way of examples in these two ways, but do not represent that the embodiments of the present application are limited to these.

Optionally, the content difference includes a change in a feature between the foreground image and the background image of the first frame image relative to a feature between the foreground image and the background image of the second frame image.

The first image frame and the second image frame may be two image frames separated by 5 frames, may also be two image frames separated by 6 frames, and of course, may also be two image frames separated by 8 frames, and may be specifically set according to actual needs. In addition, the size of the seventh threshold and the size of the eighth threshold may be set according to actual needs, and the size of the seventh threshold and the size of the eighth threshold are not further limited in the embodiments of the present application.

For example, taking the video to be played as the football game video as an example, the foreground images in the first image frame and the second image frame are players, the background image is the ground, if the distance between a player in the first image frame and the center of the court is M meters, the distance between a player in the tenth image frame and the center of the court is N, and if the absolute value of the difference between M and N is less than an eighth threshold, it is determined that the video scene of the corresponding video clip corresponding to the first image frame and the tenth image frame is a slow-changing scene, and the original playing speed of the video clip corresponding to the current video scene is increased, so that the video clip corresponding to the current video scene is played quickly. On the contrary, if the absolute value of the difference between M and N is greater than the seventh threshold, it indicates that the video scene of the corresponding video segment corresponding to the first image frame and the tenth image frame is a scene with severe change, the original playing speed of the video segment corresponding to the current video scene is slowed down, so that the video segment corresponding to the current video scene is played slowly, and thus, the user can have enough time to enjoy the highlight change moment of the ball game, thereby improving the user experience.

The foregoing embodiment is described only by taking as an example that the difference in internal tolerance includes a change in a feature between a foreground image and a background image of a first image frame relative to a feature between a foreground image and a background image of a second image frame, and of course, the content difference may also include a content overlapping degree of the first image frame relative to the second image frame.

It should be noted that, in the embodiment of the present application, when the original playing speed of the corresponding video segment in the video to be played is adjusted according to the feature information, the above six possible implementation manners are only described as examples, but the embodiment of the present application is not limited thereto.

Fig. 4 is a schematic structural diagram of a control device 40 for video playback speed according to an embodiment of the present disclosure, please refer to fig. 4, in which the control device 40 for video playback speed may include a processor 401 and a memory 402.

Memory 402, among other things, is used to store program instructions.

The processor 401 is configured to call and execute a program instruction stored in the memory 402, and execute to acquire feature information of a video to be played; adjusting the original playing speed of the corresponding video clip in the video to be played according to the characteristic information; and outputting the adjusted video to be played.

Optionally, the processor 401 is specifically configured to store the adjusted video to be played.

Optionally, the processor 401 is specifically configured to obtain feature information of the video to be played in a shooting process of the video to be played.

Optionally, the processor 401 is specifically configured to play the adjusted video to be played according to the timestamp corresponding to the adjusted original playing speed when the play trigger event of the video to be played is detected.

Optionally, the processor 401 is specifically configured to play the adjusted video to be played according to a user operation instruction when a play trigger event of the video to be played is detected, where the user operation instruction is used to indicate a play speed mode of the adjusted video to be played.

Optionally, the processor 401 is specifically configured to prompt selection information for the adjusted play speed mode of the video to be played when a play trigger event of the video to be played is detected; receiving a selection instruction input by a user according to the selection information, and determining a target timestamp in at least two timestamps; and playing the adjusted video to be played according to the target timestamp.

Optionally, the processor 401 is specifically configured to, when a play trigger event of a video to be played is detected, obtain feature information of the video to be played; and playing the adjusted video to be played according to the timestamp corresponding to the adjusted original playing speed.

Optionally, the processor 401 is further configured to record feature information of the video to be played in a shooting process of the video to be played.

Optionally, the processor 401 is specifically configured to, when the playing speed mode of the video to be played is a speed-adjustable playing mode or a speed-selective playing mode, adjust the original playing speed of the corresponding video segment in the video to be played according to the feature information.

Optionally, the feature information includes at least one of associated motion data when the video to be played is shot, interest marker information input by the user for the video to be played, and content information of the video to be played.

Optionally, the priority of the interest marker information is higher than the priority of the associated motion data and content information.

Optionally, the associated motion data includes acceleration data and/or angular velocity data of the camera and/or the vehicle of the camera and/or the mount of the camera in one or more directions, the camera being used to capture a video to be played.

The processor 401 is specifically configured to accelerate an original playing speed of a corresponding video segment in the video to be played if the acceleration data is smaller than a first threshold and/or the angular acceleration data is smaller than a second threshold; and if the acceleration data is greater than a third threshold and/or the angular acceleration data is greater than a fourth threshold, slowing down the original playing speed of the corresponding video clip in the video to be played.

Optionally, the interest mark information is used to indicate a degree of interest of the user, and the interest mark information is recorded in a shooting process of the video to be played or recorded in a history playing process of the video to be played.

The processor 401 is specifically configured to, if the interest marker information meets the first condition, increase an original playing speed of a corresponding video segment in the video to be played; and if the interest mark information meets the second condition, slowing down the original playing speed of the corresponding video clip in the video to be played.

Optionally, the processor 401 is further configured to display the interest marker information during the playing process of the video to be played.

Optionally, the processor 401 is specifically configured to display the interest marker information on a playing progress bar of the video to be played.

Optionally, the processor 401 is further configured to receive a re-edit instruction for the interest marker information during the playing process of the video to be played; editing interest mark information according to the re-editing instruction; and adjusting the current playing speed of the corresponding video clip in the video to be played according to the edited interest mark information.

Optionally, the content information includes motion characteristic information of a target object in the video to be played, and the motion characteristic information at least includes motion posture information of the target object.

The processor 401 is further configured to determine a motion scene in the video to be played.

The processor 401 is specifically configured to determine a motion state of the target object in the motion scene according to the motion characteristic information; and the original playing speed of the corresponding video clip in the video to be played is accelerated or decelerated according to the motion state.

Optionally, the processor 401 is specifically configured to receive input information of a user for a motion scene; and determining the motion scene in the video to be played according to the input information.

Optionally, the processor 401 is specifically configured to match image features in the video to be played with image features in a preset motion scene; and determining the motion scene in the video to be played according to the matching result.

Optionally, the content information includes environment information in the video to be played, and the environment information includes environment brightness.

The processor 401 is specifically configured to, if the ambient brightness is smaller than the fifth threshold, increase or decrease an original playing speed of a corresponding video segment in the video to be played according to a first preset rule; and if the ambient brightness is greater than the sixth threshold, the original playing speed of the corresponding video clip in the video to be played is increased or decreased according to a second preset rule.

Optionally, the content information includes a video scene in the video to be played.

The processor 401 is specifically configured to slow down an original playing speed of a corresponding video clip in a video to be played if a video scene is a scene with a severe change; and if the video scene is a slowly-changing scene, accelerating the original playing speed of the corresponding video clip in the video to be played.

Optionally, the processor 401 is specifically configured to detect a content difference between a first image frame and a second image frame in a video to be played according to the content information, where the first image frame and the second image frame are separated by an image frame with a preset frame number; if the content difference is larger than a seventh threshold value, determining that the video scene is a violent change scene according to the first image frame and the second image frame, and slowing down the original playing speed of a corresponding video clip in the video to be played; if the content difference is smaller than the eighth threshold, the video scene determined according to the first image frame and the second image frame is a slow change scene, and the original playing speed of the corresponding video clip in the video to be played is increased.

The control device 40 for video playing speed can correspondingly implement the technical solution of the control method for video playing speed of any embodiment, and the implementation principle and technical effect are similar, and are not described herein again.

The embodiment of the present application further provides a motion camera, which includes: the control device for video playing speed shown in any of the above embodiments.

The motion camera can correspondingly execute the technical scheme of the video playing speed control method of any embodiment, and the implementation principle and the technical effect are similar, which are not described herein again.

The embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for controlling a video playing speed shown in any embodiment is executed.

The above-mentioned computer-readable storage medium can correspondingly execute the technical solution of the video playing speed control method of any embodiment, and the implementation principle and technical effect thereof are similar, and are not described herein again.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for controlling video playback speed, comprising:

acquiring characteristic information of a video to be played;

outputting the adjusted video to be played;

and each frame in the adjusted corresponding video clip corresponds to at least two timestamps, and the at least two timestamps comprise the timestamp corresponding to the original playing speed and the timestamp corresponding to the adjusted original playing speed.

2. The method of claim 1, wherein outputting the adjusted video to be played comprises:

and storing the adjusted video to be played.

3. The method according to claim 1, wherein the obtaining the feature information of the video to be played comprises:

and acquiring the characteristic information of the video to be played in the shooting process of the video to be played.

4. The method of claim 3, wherein outputting the adjusted video to be played comprises:

and when a playing triggering event of the video to be played is detected, playing the adjusted video to be played according to the timestamp corresponding to the adjusted original playing speed.

5. The method of claim 3, wherein outputting the adjusted video to be played comprises:

and when a play trigger event of the video to be played is detected, playing the adjusted video to be played according to a user operation instruction, wherein the user operation instruction is used for indicating the play speed mode of the adjusted video to be played.

6. The method of claim 3, wherein outputting the adjusted video to be played comprises:

when a play trigger event of the video to be played is detected, prompting selection information aiming at the adjusted play speed mode of the video to be played;

receiving a selection instruction input by a user according to the selection information, and determining a target timestamp in at least two timestamps;

and playing the adjusted video to be played according to the target timestamp.

7. The method according to claim 1, wherein the obtaining the feature information of the video to be played comprises:

when a play trigger event of the video to be played is detected, acquiring characteristic information of the video to be played;

the outputting the adjusted video to be played comprises:

and playing the adjusted video to be played according to the timestamp corresponding to the adjusted original playing speed.

8. The method according to claim 7, wherein before the obtaining the feature information of the video to be played, the method further comprises:

and recording the characteristic information of the video to be played in the shooting process of the video to be played.

9. The method according to any one of claims 1 to 8, wherein the adjusting the original playing speed of the corresponding video segment in the video to be played according to the feature information comprises:

and when the playing speed mode of the video to be played is a speed-regulating playing mode or a speed-selecting playing mode, adjusting the original playing speed of the corresponding video clip in the video to be played according to the characteristic information.

10. The method according to claim 9, wherein the feature information includes at least one of associated motion data when the video to be played is captured, interest mark information input by a user for the video to be played, and content information of the video to be played.

11. The method of claim 10, wherein the interest marker information has a higher priority than the associated motion data and the content information.

12. Method according to claim 10, characterized in that the associated movement data comprise acceleration data and/or angular velocity data in one or more directions of a camera and/or a vehicle of the camera and/or a mount of a camera used for capturing the video to be played;

the adjusting the original playing speed of the corresponding video clip in the video to be played according to the feature information includes:

if the acceleration data is smaller than a first threshold and/or the angular acceleration data is smaller than a second threshold, the original playing speed of the corresponding video clip in the video to be played is increased;

and if the acceleration data is greater than a third threshold and/or the angular acceleration data is greater than a fourth threshold, slowing down the original playing speed of the corresponding video clip in the video to be played.

13. The method according to claim 10, wherein the interest mark information is used for indicating the interest level of the user, and the interest mark information is recorded during shooting of the video to be played or recorded during historical playing of the video to be played;

if the interest mark information meets a first condition, the original playing speed of a corresponding video clip in the video to be played is increased;

and if the interest mark information meets a second condition, slowing down the original playing speed of the corresponding video clip in the video to be played.

14. The method of claim 13, further comprising:

and displaying the interest mark information in the playing process of the video to be played.

15. The method of claim 14, wherein said displaying said interest marker information comprises:

and displaying the interest mark information on the playing progress bar of the video to be played.

16. The method of claim 15, further comprising:

receiving a re-editing instruction aiming at the interest mark information in the playing process of the video to be played;

editing the interest mark information according to the re-editing instruction;

and adjusting the current playing speed of the corresponding video clip in the video to be played according to the edited interest mark information.

17. The method according to claim 10, wherein the content information includes motion feature information of a target object in the video to be played, and the motion feature information includes at least motion pose information of the target object;

before adjusting the original playing speed of the corresponding video segment in the video to be played according to the feature information, the method further includes:

determining a motion scene in the video to be played;

determining the motion state of the target object in the motion scene according to the motion characteristic information;

and according to the motion state, the original playing speed of the corresponding video clip in the video to be played is accelerated or decelerated.

18. The method of claim 17, wherein the determining the motion scene in the video to be played comprises:

receiving input information of a user for a motion scene;

and determining the motion scene in the video to be played according to the input information.

19. The method of claim 17, wherein the determining the motion scene in the video to be played comprises:

matching image features in the video to be played with image features in a preset motion scene;

and determining the motion scene in the video to be played according to the matching result.

20. The method according to claim 10, wherein the content information comprises environment information in the video to be played, and the environment information comprises environment brightness;

if the ambient brightness is smaller than a fifth threshold, the original playing speed of the corresponding video clip in the video to be played is increased or decreased according to a first preset rule;

and if the ambient brightness is greater than a sixth threshold, the original playing speed of the corresponding video segment in the video to be played is increased or decreased according to a second preset rule.

21. The method of claim 10, wherein the content information comprises a video scene in the video to be played;

if the video scene is a scene with severe change, slowing down the original playing speed of the corresponding video clip in the video to be played;

and if the video scene is a slowly-changing scene, accelerating the original playing speed of the corresponding video clip in the video to be played.

22. The method according to claim 10, wherein the adjusting the original playing speed of the corresponding video segment in the video to be played according to the feature information comprises:

detecting content difference between a first image frame and a second image frame in the video to be played according to the content information, wherein the first image frame and the second image frame are separated by a preset frame number of image frames;

if the content difference is larger than a seventh threshold value, determining that the video scene determined according to the first image frame and the second image frame is a violent change scene, and slowing down the original playing speed of a corresponding video clip in the video to be played;

if the content difference is smaller than an eighth threshold value, the video scene determined according to the first image frame and the second image frame is a slow change scene, and the original playing speed of the corresponding video clip in the video to be played is increased.

23. The method of claim 22, wherein the content difference comprises a change in a feature between a foreground image and a background image of the first frame image relative to a feature between a foreground image and a background image of the second frame image.

24. A control device of video playing speed is characterized in that the control device comprises a processor and a memory;

wherein the memory is to store program instructions;

25. The apparatus of claim 24,

the processor is specifically configured to store the adjusted video to be played.

26. The apparatus of claim 24,

the processor is specifically configured to acquire the feature information of the video to be played in a shooting process of the video to be played.

27. The apparatus of claim 26,

the processor is specifically configured to play the adjusted video to be played according to the timestamp corresponding to the adjusted original play speed when a play trigger event for the video to be played is detected.

28. The apparatus of claim 26,

the processor is specifically configured to play the adjusted video to be played according to a user operation instruction when a play trigger event for the video to be played is detected, where the user operation instruction is used to indicate a play speed mode of the adjusted video to be played.

29. The apparatus of claim 26,

the processor is specifically configured to prompt selection information for the adjusted play speed mode of the video to be played when a play trigger event for the video to be played is detected; receiving a selection instruction input by a user according to the selection information, and determining a target timestamp in at least two timestamps; and playing the adjusted video to be played according to the target timestamp.

30. The apparatus of claim 24,

the processor is specifically configured to acquire feature information of the video to be played when a play trigger event for the video to be played is detected; and playing the adjusted video to be played according to the timestamp corresponding to the adjusted original playing speed.

31. The apparatus of claim 30,

the processor is further configured to record the characteristic information of the video to be played in the shooting process of the video to be played.

32. The apparatus of any one of claims 24 to 31,

the processor is specifically configured to adjust an original playing speed of a corresponding video segment in the video to be played according to the feature information when the playing speed mode of the video to be played is a speed-adjustable playing mode or a speed-selectable playing mode.

33. The apparatus according to claim 32, wherein the feature information includes at least one of associated motion data when the video to be played is captured, interest mark information input by a user for the video to be played, and content information of the video to be played.

34. The apparatus of claim 33, wherein the interest marker information has a higher priority than the associated motion data and the content information.

35. The device according to claim 33, wherein the associated motion data comprises acceleration data and/or angular velocity data in one or more directions of a camera and/or a vehicle of the camera and/or a mount of a camera used for capturing the video to be played;

the processor is specifically configured to accelerate an original playing speed of a corresponding video clip in the video to be played if the acceleration data is smaller than a first threshold and/or the angular acceleration data is smaller than a second threshold; and if the acceleration data is greater than a third threshold and/or the angular acceleration data is greater than a fourth threshold, slowing down the original playing speed of the corresponding video clip in the video to be played.

36. The apparatus according to claim 33, wherein the interest marker information is used to indicate a degree of interest of the user, and the interest marker information is recorded during shooting of the video to be played or recorded during historical playing of the video to be played;

the processor is specifically configured to accelerate an original playing speed of a corresponding video segment in the video to be played if the interest marker information meets a first condition; and if the interest mark information meets a second condition, slowing down the original playing speed of the corresponding video clip in the video to be played.

37. The apparatus of claim 36,

the processor is further configured to display the interest mark information in a playing process of the video to be played.

38. The apparatus of claim 37,

the processor is specifically configured to display the interest marker information on a play progress bar of the video to be played.

39. The apparatus of claim 38,

the processor is further configured to receive a re-edit instruction for the interest marker information in a playing process of the video to be played; editing the interest mark information according to the re-editing instruction; and adjusting the current playing speed of the corresponding video clip in the video to be played according to the edited interest mark information.

40. The apparatus according to claim 33, wherein the content information includes motion feature information of a target object in the video to be played, and the motion feature information includes at least motion pose information of the target object;

the processor is further configured to determine a motion scene in the video to be played;

the processor is specifically configured to determine a motion state of the target object in the motion scene according to the motion characteristic information; and according to the motion state, the original playing speed of the corresponding video clip in the video to be played is accelerated or decelerated.

41. The apparatus of claim 40,

the processor is specifically configured to receive input information of a user for a motion scene; and determining the motion scene in the video to be played according to the input information.

42. The apparatus of claim 40,

the processor is specifically configured to match image features in the video to be played with image features in a preset motion scene; and determining the motion scene in the video to be played according to the matching result.

43. The apparatus of claim 33, wherein the content information comprises environment information in the video to be played, and the environment information comprises environment brightness;

the processor is specifically configured to, if the ambient brightness is smaller than a fifth threshold, increase or decrease an original playing speed of a corresponding video segment in the video to be played according to a first preset rule; and if the ambient brightness is greater than a sixth threshold, the original playing speed of the corresponding video segment in the video to be played is increased or decreased according to a second preset rule.

44. The apparatus according to claim 33, wherein the content information comprises video scenes in the video to be played;

the processor is specifically configured to slow down an original playing speed of a corresponding video clip in the video to be played if the video scene is a scene with a severe change; and if the video scene is a slowly-changing scene, accelerating the original playing speed of the corresponding video clip in the video to be played.

45. The apparatus of claim 33,

the processor is specifically configured to detect a content difference between a first image frame and a second image frame in the video to be played according to the content information, where the first image frame and the second image frame are separated by a preset number of frames; if the content difference is larger than a seventh threshold value, determining that the video scene determined according to the first image frame and the second image frame is a violent change scene, and slowing down the original playing speed of a corresponding video clip in the video to be played; if the content difference is smaller than an eighth threshold value, the video scene determined according to the first image frame and the second image frame is a slow change scene, and the original playing speed of the corresponding video clip in the video to be played is increased.

46. The apparatus of claim 45, wherein the content difference comprises a change in a feature between a foreground image and a background image of the first frame image relative to a feature between a foreground image and a background image of the second frame image.

47. A motion camera, comprising: apparatus for controlling the video playback speed of any of claims 24 to 46.

48. A computer-readable storage medium, characterized in that,

the computer readable storage medium has stored thereon a computer program which, when executed by a processor, performs the method of controlling video playback speed of any of claims 1-23.