CN113630649A - Display device and video playing progress adjusting method - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47217—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
- H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
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Abstract
The application provides a display device and a method for adjusting video playing progress, wherein the method comprises the steps of playing a target video file and displaying a playing time axis in a video playing window, wherein the target video file comprises video frames which are arranged based on a playing time sequence, and the playing time corresponding to each video frame is divided into a specified time period in advance; when receiving an input selection operation of a first time point on a playing time axis, determining a video frame group corresponding to the time period according to the time period to which the first time point belongs; and controlling to display a preview window at a preset position of the video playing window, and playing a corresponding video frame group in the affiliated time period in the preview window. Therefore, the user can quickly know the content corresponding to the video frame group, the user is further assisted to adjust the playing progress to a desired position, and the user experience is improved.
Description
Technical Field
The embodiment of the application relates to the technical field of display equipment, in particular to display equipment and a method for adjusting video playing progress.
Background
The display device refers to a terminal device capable of outputting a specific display picture, such as a smart television, a mobile terminal, a smart advertisement screen, a projector, and the like. Taking an intelligent television as an example, the intelligent television can be based on an Internet application technology, has an open operating system and a chip, has an open application platform, can realize a bidirectional man-machine interaction function, integrates multiple functions of video, entertainment, data and the like, and is a television product for meeting diversified and personalized requirements of users. For example, a user can select any multimedia resource option by operating a video selection interface, control the smart television to access a link address of the multimedia resource to obtain video data, and play a corresponding video picture. In the process of playing the video, the user can adjust the playing progress of the video, and the smart television can play the video from the playing progress selected by the user.
In some scenarios, a video playing window has a playing progress bar therein, and a user can adjust the video playing progress by gradually dragging the playing progress bar. When the user control focus stays at a certain position on the progress bar, a static video picture corresponding to the timestamp is displayed, the user can know the video content of the static video picture through the display of the static video picture, and then the user is assisted in adjusting the playing progress to a desired position.
However, the method for adjusting the video playing progress is only suitable for videos with short duration, and for videos with long duration, the searching efficiency is low, the positioning is not accurate enough, and the user experience is not good.
Disclosure of Invention
The exemplary embodiment of the application provides a display device and a method for adjusting a video playing progress, which can be used for adjusting the playing progress of a target video to a playing progress expected by a user, so that the user experience is improved.
In a first aspect, the present application provides a display device comprising:
the display is used for displaying the video playing window;
a controller configured to:
playing a target video file and displaying a playing time axis in the video playing window, wherein the target video file comprises video frames which are arranged based on a playing time sequence, and the playing time corresponding to each video frame is divided into a specified time period in advance;
when receiving an input selection operation of a first time point on the playing time axis, determining a video frame group corresponding to the time period according to the time period to which the first time point belongs;
and controlling to display a preview window at a preset position of the video playing window, and playing the corresponding video frame group in the affiliated time period in the preview window.
In a second aspect, the present application provides a method for adjusting a video playing progress, including:
playing a target video file and displaying a playing time axis in the video playing window, wherein the target video file comprises video frames which are arranged based on a playing time sequence, and the playing time corresponding to each video frame is divided into a specified time period in advance;
when receiving an input selection operation of a first time point on the playing time axis, determining a video frame group corresponding to the time period according to the time period to which the first time point belongs;
and controlling to display a preview window at a preset position of the video playing window, and playing the corresponding video frame group in the affiliated time period in the preview window.
According to the display device and the method for adjusting the video playing progress, the user can quickly know the content corresponding to the video frame group of the target video in each time period, so that the user is assisted to adjust the playing progress to a desired position, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the implementation manner in the related art, a brief description will be given below of the drawings required for the description of the embodiments or the related art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 illustrates an operational scenario between a display device and a control apparatus according to some embodiments;
fig. 2 illustrates a block diagram of a hardware configuration of a control apparatus according to some embodiments;
fig. 3 illustrates a hardware configuration block diagram of a display device according to some embodiments;
FIG. 4 illustrates a software configuration diagram in a display device according to some embodiments;
FIG. 5 illustrates an interface diagram of a video playback window in a display device according to some embodiments;
FIG. 6 illustrates an interface diagram of a video playback window in a display device according to some embodiments;
FIG. 7 illustrates a schematic diagram of a play timeline in a display device, in accordance with some embodiments;
FIG. 8 illustrates a schematic diagram of a preview window in a display device, in accordance with some embodiments;
FIG. 9 illustrates a display style diagram for an interface object used to set a fine positioning switch when the fine positioning switch is turned on in a display device according to some embodiments;
FIG. 10 illustrates a display style diagram for an interface object for setting a precision positioning switch when the precision positioning switch is turned off in a display device according to some embodiments;
FIG. 11 illustrates an interface diagram for a first list of video frames in a display device according to some embodiments;
FIG. 12 illustrates an interface diagram for a second list of video frames in a display device according to some embodiments;
FIG. 13 illustrates an interface diagram of a video playback window in a display device according to some embodiments;
FIG. 14 illustrates a flow diagram of a method of video playback progress adjustment, according to some embodiments;
FIG. 15 illustrates a flow diagram of a method of accurately locating a target video playback progress, in accordance with some embodiments.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. Other embodiments based on the embodiments of the present application and obtained by a person of ordinary skill in the art without any creative effort belong to the protection scope of the present application.
To make the purpose and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the attached drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.
The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.
Fig. 1 is a schematic diagram of an operation scenario between a display device and a control apparatus according to an embodiment. As shown in fig. 1, a user may operate the display apparatus 200 through the smart device 300 or the control device 100.
In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, and controls the display device 200 in a wireless or wired manner. The user may input a user instruction through a key on a remote controller, voice input, control panel input, etc., to control the display apparatus 200.
In some embodiments, the smart device 300 (e.g., mobile terminal, tablet, computer, laptop, etc.) may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device.
In some embodiments, the display device 200 may also be controlled in a manner other than the control apparatus 100 and the smart device 300, for example, the voice instruction control of the user may be directly received by a module configured inside the display device 200 to obtain a voice instruction, or may be received by a voice control apparatus provided outside the display device 200.
In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers.
Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory, and a power supply. The control apparatus 100 may receive an input operation instruction from a user and convert the operation instruction into an instruction recognizable and responsive to the display device 200, thereby mediating interaction between the user and the display device 200.
Fig. 3 shows a hardware configuration block diagram of the display apparatus 200 according to an exemplary embodiment.
In some embodiments, the display apparatus 200 includes at least one of a tuner demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, a user interface.
In some embodiments the controller comprises a processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.
In some embodiments, the display 260 includes a display screen component for presenting a picture, and a driving component for driving an image display, a component for receiving an image signal from the controller output, performing display of video content, image content, and a menu manipulation interface, and a user manipulation UI interface.
In some embodiments, the display 260 may be a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.
In some embodiments, communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display apparatus 200 may establish transmission and reception of control signals and data signals with the external control device 100 or the server 400 through the communicator 220.
In some embodiments, the user interface may be configured to receive control signals for controlling the apparatus 100 (e.g., an infrared remote control, etc.).
In some embodiments, the detector 230 is used to collect signals of the external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for collecting ambient light intensity; alternatively, the detector 230 includes an image collector, such as a camera, which may be used to collect external environment scenes, attributes of the user, or user interaction gestures, or the detector 230 includes a sound collector, such as a microphone, which is used to receive external sounds.
In some embodiments, the external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, and the like. The interface may be a composite input/output interface formed by the plurality of interfaces.
In some embodiments, the tuner demodulator 210 receives broadcast television signals via wired or wireless reception, and demodulates audio/video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.
In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.
In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.
In some embodiments, the object may be any one of selectable objects, such as a hyperlink, an icon, or other actionable control. The operations related to the selected object are: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to the icon.
In some embodiments, the controller includes at least one of a Central Processing Unit (CPU), a video processor, an audio processor, a Graphic Processing Unit (GPU), a Random Access Memory (RAM), a ROM (Read-Only Memory), a first interface to an nth interface for input/output, a communication Bus (Bus), and the like.
And the CPU is used for executing the operating system and the application program instructions stored in the memory and executing various application programs, data and contents according to various interaction instructions for receiving external input so as to finally display and play various audio and video contents. The CPU processor may include a plurality of processors. E.g. comprising a main processor and one or more sub-processors.
In some embodiments, a graphics processor for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The graphic processor comprises an arithmetic unit, which performs operation by receiving various interactive instructions input by a user and displays various objects according to display attributes; the system also comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.
In some embodiments, the video processor is configured to receive an external video signal, and perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a signal that can be displayed or played on the direct display device 200.
In some embodiments, the video processor includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like. The demultiplexing module is used for demultiplexing the input audio and video data stream. And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like. And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display. And the frame rate conversion module is used for converting the frame rate of the input video. And the display formatting module is used for converting the received video output signal after the frame rate conversion, and changing the signal to be in accordance with the signal of the display format, such as an output RGB data signal.
In some embodiments, the audio processor is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, and amplification processing to obtain an audio signal that can be played in the speaker.
In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on display 260, and the user input interface receives the user input commands through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.
In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that the user can receive. A commonly used presentation form of the User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.
In some embodiments, a system of a display device may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.
As shown in fig. 4, the system of the display device may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.
As shown in fig. 4, the system of the display device is divided into three layers, i.e., an application layer, a middleware layer and a hardware layer from top to bottom.
The Application layer mainly includes common applications on the television and an Application Framework (Application Framework), wherein the common applications are mainly applications developed based on the Browser, such as: HTML5 APPs; and Native APPs (Native APPs);
an Application Framework (Application Framework) is a complete program model, and has all basic functions required by standard Application software, such as: file access, data exchange, and interfaces (toolbars, status bars, menus, dialog boxes) for use of these functions.
Native applications (native apps) may support online or offline, message push, or local resource access.
The middleware layer comprises various television protocols, multimedia protocols, system components and other middleware. The middleware can use basic service (function) provided by system software to connect each part of an application system or different applications on a network, and can achieve the purposes of resource sharing and function sharing.
The hardware layer mainly comprises an HAL interface, hardware and a driver, wherein the HAL interface is a unified interface for butting all the television chips, and specific logic is realized by each chip. The driving mainly comprises: audio drive, display driver, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (like fingerprint sensor, temperature sensor, pressure sensor etc.) and power drive etc..
The above embodiments describe the hardware/software architecture and functional implementation of the display device 200. In some application scenarios, when a user selects a certain video to play on the display device 200, in response to a play instruction input by the user, the display device 200 accesses a link address of a target video to obtain a target video file, where the target video file includes video frames arranged based on a play time sequence, and the display device 200 sequentially plays corresponding video frames in the video play window 201 according to the play time sequence to realize the play of the target video. When a user watches a video in the video playing window 201, the playing progress of the video can be adjusted to play the video directly from a video picture in which the user is interested.
In some embodiments, the adjustment of the playing progress of the video may be implemented by the control device 100. The control apparatus 100 may be a remote controller for controlling the display device 200, and a direction key for adjusting a progress of playing a video is provided on the remote controller. The user sends a progress adjustment instruction in a corresponding direction to the display device 200 by pressing a direction key, the display device 200 adjusts the target video after receiving the progress adjustment instruction, and once the progress adjustment instruction is received, the playing progress of the target video is adjusted in the corresponding direction, and the playing progress values adjusted each time are the same. By adjusting the playing progress of the target video in this way, although the video picture which the user is interested in can be accurately positioned, if the duration of the target video is long, the user needs to press the direction key for adjusting the playing progress of the video for many times to position the video picture which the user is interested in. For example, the total duration of the target video is 2h30min, and each time a direction key for adjusting the playing progress of the video is pressed, the playing progress of the target video will advance or retreat by 5s, and if the playing progress of the target video is adjusted from 1min to 1h31min, 1080 times is required, which undoubtedly consumes a lot of time and energy of the user, so that the user experience is not good.
In some embodiments, referring to fig. 5, a playing time axis 202 is further displayed in the video playing window 201, different positions on the playing time axis 202 correspond to different time points of the played video, a playing progress bar 203 is displayed on the playing time axis 202, and a user can adjust the video playing progress by gradually dragging the playing progress bar 203. In addition, referring to fig. 6, when the user controls the focus to stay somewhere on the playing time axis 202, a static video picture corresponding to the time stamp will be displayed, and the display of the static video picture can make the user know the video content there, thereby assisting the user to adjust the playing progress to a desired position. By adjusting the playing progress of the video in this way, the video picture can be previewed quickly, but the video picture can only be roughly positioned near the video picture which is interested by the user, and if the video picture which is interested by the user is accurately positioned, multiple times of debugging are needed.
In contrast, in some embodiments, when a user selects a certain video to play, in response to a play instruction input by the user, the target video file is controlled to be played in the video playing window 201, the target video file is analyzed, the total duration of the target video and the video frame corresponding to each time point are obtained, the interval duration of the section is set, and the target video is divided into a plurality of time segments. For example, the total duration of the video is 30min, the interval duration of the section is set to be 5min, and then every 5min is a time segment, and the video with the duration of 30min has 6 time segments. Where each time segment corresponds to a time segment on the play time axis 202, the time segments on the play time axis 202 representing the play time of the corresponding group of video frames. Further, a plurality of time division points are displayed on the playing time axis 202, the time division points divide the playing time axis 202 into a plurality of time segments, and each time segment of the playing time axis 202 corresponds to one time segment. For example, referring to fig. 7, the playing time axis 202 is divided into 6 time segments, the first time segment is at the beginning of the playing time axis 202, i.e. at the time of 0h0min0s, if the duration of each time segment is 5min, the second time segment is at the time of 0h5min0s, the third time segment is at the time of 0h10min0s, and so on, so that the user can quickly know the content of the target video, thereby assisting the user to adjust the target video to the desired playing progress. For example, the user can roughly know the playing content in an arbitrary time period by selecting a certain time point in the time period, and if the time point is not in accordance with the expectation, the user continues to select a certain time point in the next time period until the playing content in accordance with the expectation is found. The problem that a user needs to select certain time points unintentionally on the playing time axis 202 to search for the expected playing content is avoided, and the user experience is improved.
In the above embodiment, the interval duration of the section may be flexibly set according to actual needs, for example, the target video file may be divided into a fixed number of time segments by presetting, and the interval duration of the section may be set according to the total duration of the target video and the number of the time segments of the target video; the target video file can also be analyzed in advance, the target video file is divided into a plurality of video frame groups according to the playing scenario, the playing time period corresponding to each video frame group is a time segment, and the time length of each time segment can be different.
In some embodiments, when the user performs a selection operation on a certain point of time on the play time axis 202 through the control device 100, for example, the user controls the focus cursor to stay at a certain point on the play time axis 202, or when the user controls the focus cursor to select a certain point on the play time axis 202, the display device 200 acquires a time segment where the target time point is located, specifically, acquires a time division point adjacent to the target time point and earlier than the target time point, and acquiring time division points adjacent to the target time point and later than the target time point, determining a time period between the two time division points as a time segment in which the target time point is positioned, and further acquiring video frames arranged in the time segment based on the playing time sequence, and compressing the video frame, and storing the compressed video frame in a cache. The display device 200 reads the compressed video frames stored in the buffer memory, and controls the preview window 205 to be displayed in the video play window 201, and plays the compressed video frames in the preview window 205, referring to fig. 8.
In some embodiments, the position and size of the preview window 205 may be adjusted by the control device 100 according to the needs of the user. For example, the control apparatus 100 may be provided with a direction key for moving the position of the preview window 205, and the user selects the preview window 205 and issues a corresponding movement instruction to the display device 200 via the direction key, and in response to the movement instruction, the preview window 205 will move to the corresponding position. The control device 100 may further be provided with a "+" key and a "-" key for adjusting the size of the preview window 205, the user selects the preview window 205 and clicks the "+" key, the control device 100 sends an enlargement instruction to the display apparatus 200, in response to the input enlargement instruction, the size of the preview window 205 will be increased according to a certain proportion, and in response to the input reduction instruction, the size of the preview window 205 will be decreased according to a certain proportion by clicking the "-" key, the control device 100 sends a reduction instruction to the display apparatus 200.
In some embodiments, the compressed video frames may be labeled at corresponding time points and named with a label + timestamp, and stored in a buffer in order for later reading. For example, a time slice corresponds to 5 video pictures, which are respectively a first frame, a second frame, a third frame, a fourth frame and a fifth frame in time sequence. If the time point corresponding to the first frame is 17min30s, then "1 +17min30 s" is named as the first frame; if the time point corresponding to the second frame is 17min31s, then "2 +17min31 s" is named as the second frame; similarly, if the time point corresponding to the fifth frame is 17min34s, the fifth frame is named as "5 +17min34 s".
In some embodiments, by analyzing the relevance of each video frame, a key frame may be determined, and the remaining video frames determined to be non-key frames. Specifically, there are various operations for acquiring the key frame, which are well known to those skilled in the art and will not be described herein.
In some embodiments, a group of video frames corresponding to a time segment includes at least one key frame. When receiving an input selection operation for a certain time point on the play time axis, the display apparatus 200 controls all the key frames in the video frame group corresponding to the time period to which the time point belongs to be played at a preset rate in the preview window 205. For example, the time segment in which the time point selected by the user on the playing time axis 202 is located includes 10 key frames, and if the playing rate is set to be 2 in advance, the 10 key frames will be played back sequentially at a 2 × rate based on the corresponding playing time sequence.
In some embodiments, the display device 200 may be provided with a fine positioning mode. When the display device 200 is in the accurate positioning mode, the user may further accurately position the target video to be positioned to a specific frame to start playing the target video file.
In some embodiments, the user may transmit an on/off fine positioning mode instruction to the display apparatus 200 by operating a designated key of the control device 100. In the actual application process, the corresponding relationship between the precise positioning mode command and the keys of the control device 100 is bound in advance. For example, a precise positioning mode key is set on the control device 100, when the user touches the key, the remote controller sends a command for setting the precise positioning mode to the display device 200, and triggers the display device 200 to display a precise positioning setting page, where the precise positioning setting page includes an interface object for setting a precise positioning switch, and when the user turns on or turns off the precise positioning switch, the display style of the interface object for setting the precise positioning switch may also be changed accordingly. Referring to fig. 9, a display style of an interface object for setting the accurate positioning switch when the accurate positioning switch is turned on; fig. 10 is a display style of an interface object for setting the fine positioning switch when the fine positioning switch is turned off.
In some embodiments, if the precise positioning switch is in the off state, when receiving a selection operation of the preview window 205 by a user, the display device 200 identifies a video frame played by the preview window 205 at the current time and a playing progress corresponding to the video frame, adjusts the playing progress of the target video file to a time point at which the preview window 205 currently plays the video frame, and closes the preview window 205.
In some embodiments, if the precise positioning switch is in the on state, the display device 200 reads the compressed video frame group stored in the cache upon receiving a user selection operation on the preview window 205, and it should be noted that, the video frame group is a video frame collection in a time period corresponding to the key frame played in the preview window, a video frame thumbnail picture set is generated, the video frame thumbnail set comprises thumbnails corresponding to each video frame read from the cache, thumbnails corresponding to key frames are obtained, a first video frame list is generated, the first video frame list comprises key frame thumbnails arranged based on the playing time sequence, and the first video frame list is controlled to be displayed in the video playing window 201, and a user can quickly know the playing content of the target video at each playing progress by browsing each key frame thumbnail in the first video frame list. Referring to fig. 11, when the fine positioning switch is in an on state, when receiving a selection operation of a user on the preview window 205, the display device 200 displays a first video frame list on the video playback window 201, where the first video frame list includes thumbnails of key frames a, B, and C …, and the thumbnail of the key frame is arranged according to the playback time sequence of the corresponding key frame, and the user can move the focus cursor to any one of the thumbnail of the key frame through the control device 100 to enlarge the thumbnail of the key frame, where fig. 11 is that the user moves the focus cursor to the thumbnail of the key frame D, so that the user can generally know about the playback content corresponding to the key frame and the video frames near the key frame by looking at the thumbnail of the key frame.
In some embodiments, when a user selects a certain key frame thumbnail in the first video frame list, the display device 200 may adjust the playing progress of the target video file to a time point of a video frame corresponding to the key frame thumbnail, and continue playing the target video file. Illustratively, when the user selects "key frame C" in the first video frame list in fig. 11, the display device may adjust the playing progress of the target video file from the playing progress shown in fig. 11 to a time point corresponding to "key frame C". In addition, the display device closes the first video frame list while executing the adjustment of the playing progress, so that the first video frame list is prevented from shielding the playing picture of the target video file.
In other embodiments, a user performs a selection operation on a certain key frame thumbnail in the first video frame list, and when receiving the selection operation on a target thumbnail from the user, the display device 200 acquires a non-key frame thumbnail associated with the target thumbnail, where the target thumbnail is the key frame thumbnail selected by the user, inserts the non-key frame thumbnail into the first video frame list based on a play time sequence to obtain a second video frame list, controls to display the second video frame list in the video play window 201, and the user can find a desired play content by browsing the target thumbnail in the second video frame list and the non-key frame thumbnail associated with the target thumbnail and accurately position the desired play progress. Referring to fig. 12, when receiving a user selection operation on a certain key frame thumbnail in the first video frame list, the display device 200 displays a second video frame list in the video playing window 201, where the second video frame list includes a user-selected key frame thumbnail and thumbnails of non-key frames a, B, and C … associated with the key frame thumbnail, the video frame thumbnails are arranged according to the playing time sequence of their corresponding video frames, and a user can move a focus cursor to any one of the non-key frame thumbnails through the control device 100, and can enlarge the non-key frame thumbnail, so that the user can accurately position a video frame desired to be played by viewing the non-key frame thumbnail.
In some embodiments, a video frame thumbnail between a user-selected key frame thumbnail and its adjacent previous key frame thumbnail may be determined as a non-key frame thumbnail associated with a target thumbnail, i.e., a user-selected key frame thumbnail, and/or a video frame thumbnail between a user-selected key frame thumbnail and its adjacent subsequent key frame thumbnail may be determined as a non-key frame thumbnail associated with a target thumbnail. For example, the time point corresponding to the key frame thumbnail selected by the user is 1h20min15s, and the time points corresponding to two key frame thumbnails adjacent to the key frame thumbnail are 1h20min10s and 1h20min20s, respectively, then the video frame thumbnail corresponding to the time point between 1h20min10s and 1h20min15s, and/or the time point between 1h20min15s and 1h20min20s is determined as the non-key frame thumbnail associated with the key frame thumbnail.
In some embodiments, a user performs a selection operation on a certain video frame thumbnail in the second video frame list, and when receiving the selection operation of the user on a target thumbnail in the second video frame list, the display device 200 may adjust the playing progress of the target video file to the time point of the video frame corresponding to the target thumbnail, so as to play the target video file, where the target thumbnail is the key frame thumbnail selected by the user, and simultaneously close the second video frame list, so as to avoid the second video frame list from blocking a playing picture of the target video file. Referring to fig. 13, when the user selects "non-key frame C" in fig. 12, the display device adjusts the target video playing progress from the playing progress shown in fig. 12 to the playing progress shown in fig. 13, where the playing progress shown in fig. 13 is a playing time point corresponding to "non-key frame C".
In some embodiments, the present application further provides a method for adjusting video playing progress, with reference to fig. 14, including:
s110, playing a target video file and displaying a playing time axis in a video playing window;
the target video file comprises video frames arranged based on a playing time sequence, and the playing time corresponding to each video frame is divided into a specified time period in advance;
s120: when receiving an input selection operation of a first time point on a playing time axis, determining a video frame group corresponding to the time period according to the time period to which the first time point belongs;
s130: and controlling to display a preview window at a preset position of the video playing window, and playing the corresponding video frame group in the affiliated time period in the preview window.
In some embodiments, playing a target video file and displaying a play timeline in a video play window includes:
acquiring the playing time of a target video file;
dividing the playing time of the target video file into a preset number of time periods through time division points;
time division points are marked on the play time axis.
In some embodiments, when an input selection operation for a certain time point on the playing time axis is received, determining a video frame group corresponding to the time period according to the time period to which the time point belongs includes:
acquiring a second time point and a third time point, wherein the second time point is a time division point which is adjacent to the first time point and is earlier than the first time point, and the third time point is a time division point which is adjacent to the first time point and is later than the first time point;
and determining a time period between the second time point and the third time point as a belonging time period of the first time point, wherein the video frames corresponding to all the time points in the belonging time period are video frame groups corresponding to the belonging time period.
In some embodiments, the corresponding group of video frames within the time period includes at least one key frame; playing the corresponding video frame group in the affiliated time period in the preview window, wherein the playing comprises the following steps:
and playing the key frames at a preset speed in a preview window.
In some embodiments, the present application further provides a method for accurately positioning a target video playing progress, referring to fig. 15, including:
when receiving input selection operation on a preview window, acquiring the state of an accurate positioning switch;
if the accurate positioning switch is in an on state, controlling to display a first video frame list in a video playing window;
the first video frame list comprises key frame thumbnails arranged based on a playing time sequence;
and if the accurate positioning switch is in a closed state, adjusting the playing progress of the target video file to the time point of the corresponding video frame played by the preview window.
In some embodiments, when an input selection operation of the first key frame thumbnail is received, controlling display of a second video frame list in the video play window, the second video frame list including the first key frame thumbnail arranged based on the play time order and a non-key frame thumbnail associated with the first key frame thumbnail.
In some embodiments, a second key frame thumbnail is obtained, the second key frame thumbnail being adjacent to the first key frame thumbnail, the second key frame thumbnail corresponding to a point in time on the play timeline that is earlier than the first key frame thumbnail;
acquiring a third key frame thumbnail, wherein the third key frame thumbnail is adjacent to the first key frame thumbnail, and the corresponding time point of the third key frame thumbnail on the playing time axis is later than the corresponding time point of the first key frame thumbnail on the playing time axis;
video frame thumbnails corresponding between the first key frame thumbnail and the second key frame thumbnail, and between the first key frame thumbnail and the third key frame thumbnail are determined to be non-key frame thumbnails associated with the first key frame thumbnail.
In some embodiments, when a selection operation of a target thumbnail in the second video frame list is received, the playing progress of the target video file is adjusted to a time point of a video frame corresponding to the target thumbnail.
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.
The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. A display device, comprising:
the display is used for displaying the video playing window;
a controller configured to:
playing a target video file and displaying a playing time axis in the video playing window, wherein the target video file comprises video frames which are arranged based on a playing time sequence, and the playing time corresponding to each video frame is divided into a specified time period in advance;
when receiving an input selection operation of a first time point on the playing time axis, determining a video frame group corresponding to the time period according to the time period to which the first time point belongs;
and controlling to display a preview window at a preset position of the video playing window, and playing the corresponding video frame group in the affiliated time period in the preview window.
2. The apparatus according to claim 1, wherein playing a target video file and displaying a playing time axis in the video playing window, the target video file comprising video frames arranged in a playing time sequence, and a playing time corresponding to each of the video frames being pre-divided into a specified time period comprises:
acquiring the playing time of the target video file;
dividing the playing time of the target video file into a preset number of time periods through time division points;
and marking the time division point on the playing time axis.
3. The apparatus according to claim 2, wherein when receiving an input selection operation for a certain time point on the playback time axis, determining a video frame group corresponding to the time period according to the time period to which the certain time point belongs comprises:
acquiring a second time point and a third time point, wherein the second time point is adjacent to the first time point and is earlier than the time division point of the first time point, and the third time point is adjacent to the first time point and is later than the time division point of the first time point;
and determining a time period between the second time point and the third time point as a belonging time period of the first time point, wherein the video frames corresponding to all the time points in the belonging time period are video frame groups corresponding to the belonging time period.
4. The display device according to claim 1, wherein the corresponding group of video frames in the time period comprises at least one key frame; playing the corresponding video frame group in the affiliated time period in the preview window, wherein the playing comprises the following steps:
and playing the key frames in the preview window at a preset speed.
5. The display device according to claim 4, further comprising:
when receiving input selection operation on the preview window, acquiring the state of an accurate positioning switch;
if the accurate positioning switch is in an on state, controlling to display a first video frame list in the video playing window, wherein the first video frame list comprises key frame thumbnails arranged based on a playing time sequence;
and if the accurate positioning switch is in a closed state, responding to the selection operation of the user on the preview window, and starting from the video picture played by the preview window to play the video on the user interface.
6. The display device according to claim 5, further comprising:
when receiving an input selection operation of a first key frame thumbnail, controlling to display a second video frame list in the video playing window, wherein the second video frame list comprises the first key frame thumbnail and a non-key frame thumbnail related to the first key frame thumbnail which are arranged based on a playing time sequence.
7. The display device of claim 5, wherein the controller is further configured to:
displaying an accurate positioning setting interface, wherein the accurate positioning setting interface comprises an interface object for setting an accurate positioning switch;
when receiving a starting operation input based on the interface object, marking the state of the accurate positioning switch as a starting state;
when a closing operation based on the interface object input is received, the state of the accurate positioning switch is marked as a closing state.
8. The display device according to claim 6, comprising:
acquiring a second key frame thumbnail, wherein the second key frame thumbnail is adjacent to the first key frame thumbnail, and the corresponding time point of the second key frame thumbnail on the playing time axis is earlier than the corresponding time point of the first key frame thumbnail on the playing time axis;
acquiring a third key frame thumbnail, wherein the third key frame thumbnail is adjacent to the first key frame thumbnail, and the corresponding time point of the third key frame thumbnail on the playing time axis is later than the corresponding time point of the first key frame thumbnail on the playing time axis;
determining video frame thumbnails corresponding between the first key frame thumbnail and the second key frame thumbnail, and between the first key frame thumbnail and the third key frame thumbnail as non-key frame thumbnails associated with the first key frame thumbnail.
9. The display device according to claim 6, comprising:
and when the operation of selecting the target thumbnail in the second video frame list is received, adjusting the playing progress of the target video file to the time point of the video frame corresponding to the target thumbnail.
10. A method for adjusting video playing progress is characterized by comprising the following steps:
playing a target video file and displaying a playing time axis in the video playing window, wherein the target video file comprises video frames which are arranged based on a playing time sequence, and the playing time corresponding to each video frame is divided into a specified time period in advance;
when receiving an input selection operation of a first time point on the playing time axis, determining a video frame group corresponding to the time period according to the time period to which the first time point belongs;
and controlling to display a preview window at a preset position of the video playing window, and playing the corresponding video frame group in the affiliated time period in the preview window.
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