CN113992960A

CN113992960A - Subtitle previewing method on display device and display device

Info

Publication number: CN113992960A
Application number: CN202111255290.0A
Authority: CN
Inventors: 陆世明
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-01-28

Abstract

The application provides a subtitle previewing method on a display device and the display device, and a user can set subtitle attributes of video contents while the display device plays the video contents. And after the attribute is set, the display effect after the setting can be directly displayed on the display equipment in real time, so that the user can conveniently set the attribute in time, the subtitle setting effect is prevented from being displayed only when the subtitle content is synchronously displayed on the video content, the time for the user to wait for the effect display is saved, and the experience of the user for using the display equipment is further ensured.

Description

Subtitle previewing method on display device and display device

Technical Field

The present application relates to the field of display technologies, and in particular, to a method for previewing subtitles on a display device and a display device.

Background

Subtitles refer to a representation of a video scene or a character dialog in a video by characters. Subtitles can help users to understand the content of the video in a text reading mode besides sound and pictures. The caption characters and the audio are watched together, and the content of the video can be more clearly expressed. In addition, subtitles also play a special role in helping understanding for users with hearing impairment or language differences.

For common display devices, such as computers, televisions, mobile phones, etc., corresponding players are developed to play videos. Subtitles as an integral function of the player will also provide some favorite settings to the user. Such as allowing the user to set the size of the subtitle text, the color of the subtitle text, the background color of the subtitle display area, and the like. Especially for some subtitles, correct subtitle coding needs to be set, otherwise, the subtitles may be displayed as messy codes and cannot be read normally.

For a video file, the pictures are continuously output, but the subtitles are different. Subtitles require a specific text content to be displayed at a specific time point, and the updating of the subtitles has a certain time interval. Taking a movie as an example, each subtitle is updated in synchronization with the character dialog time. Therefore, the user often cannot view the set effect immediately when the subtitle preference is set, and the user must wait until the subtitle is displayed at the time point when the subtitle is played to view the set effect of the subtitle. The time point for displaying the subtitles is uncertain, and the user needs to wait for the subtitles to appear to view the set effect, so that the waiting time is uncertain. This results in that when the user sets the subtitle, too much time is wasted to wait for the display of the effect, and further causes a problem of poor interactive experience between the user and the display device.

Disclosure of Invention

The application provides a subtitle previewing method on a display device and the display device, which are used for solving the problem that the setting effect cannot be displayed in real time in a subtitle setting mode provided for a user by the existing display device.

In a first aspect, the present application provides a method for previewing subtitles on a display device, including the steps of: when the display equipment plays video content, responding to user operation of selecting to open a subtitle attribute page on a user interface, and acquiring preset subtitle content from a subtitle file corresponding to the video content. And responding to the user operation of selecting the target attribute on the subtitle attribute page, and setting the corresponding attribute of the preset subtitle content according to the content of the target attribute to obtain the target subtitle content. And displaying the target subtitle content in a preset display area on the user interface.

According to the method, the user can set the subtitle attribute of the video content while the video content is played by the display device. And after the attribute is set, the display effect after the setting can be directly displayed on the display equipment in real time, so that the user can conveniently set the attribute in time, the subtitle setting effect is prevented from being displayed only when the subtitle content is synchronously displayed on the video content, the time for the user to wait for the effect display is saved, and the experience of the user for using the display equipment is further ensured.

In some implementation manners, after preset subtitle content is acquired from a subtitle file corresponding to the video content, decoding the preset subtitle content by using a preset decoding manner to acquire decoded subtitle content; and displaying the decoded subtitle content in a preset display area on the user interface.

In some realizations, after a preset subtitle content is obtained from a subtitle file corresponding to the video content, determining whether a flag bit for representing a coding mode is included in the preset subtitle content; if the preset subtitle content comprises the zone bit, determining a decoding mode to be selected according to the content of the zone bit; decoding the preset subtitle content by using a decoding mode to be selected to obtain decoded subtitle content; and displaying the decoded subtitle content in a preset display area on the user interface.

In some implementations, if the flag bit is not included in the preset subtitle content, the preset subtitle content is decoded by using a preset decoding manner to obtain a decoded subtitle content.

In some implementations, after the decoded subtitle content is displayed in the preset display area, determining whether a user selects a target decoding manner on the subtitle attribute page; and if the user selects a target decoding mode on the subtitle attribute page, decoding the preset subtitle content again by using the target decoding mode to obtain the target subtitle content.

In some implementations, after the decoded subtitle content is displayed within the preset display area, determining whether a user selects a target font size on the subtitle attribute page; and if the user selects the target font size on the subtitle attribute page, setting the font size of the characters of the decoded subtitle content according to the target font size to obtain the target subtitle content.

In some implementations, after displaying the decoded subtitle content within the preset display area, determining whether a user selects a target color on the subtitle attribute page; and if the user selects the target color on the subtitle attribute page, setting the character color of the decoded subtitle content according to the target color to obtain the target subtitle content.

In some implementations, after displaying the decoded subtitle content within the preset display area, determining whether a user selects a target background color on the subtitle attribute page; and if the user selects the target background color on the subtitle attribute page, setting the background color of the decoded subtitle content according to the target background color to obtain the target subtitle content.

In some implementation manners, in response to a user operation of selecting to close the subtitle attribute page on the user interface, the preset display area is closed, and all subtitle content in the subtitle file corresponding to the video content is controlled to be displayed with the target attribute.

In a second aspect, the present application provides a display device comprising:

a display configured to: displaying a user interface; a controller connected to the display, the controller configured to: when video content is played by display equipment, responding to user operation of selecting and opening a subtitle attribute page on a user interface, and acquiring preset subtitle content from a subtitle file corresponding to the video content; responding to user operation of selecting a target attribute on the subtitle attribute page, and setting corresponding attributes of the preset subtitle content according to the content of the target attribute to obtain target subtitle content; and displaying the target subtitle content in a preset display area on the user interface.

The method for previewing subtitles on display equipment of the first aspect in the present application may be applied to the display equipment of the second aspect, and further, the beneficial effects that can be achieved by the second aspect are the same as those of the first aspect, and are not described herein again.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 shows a schematic diagram of an operational scenario between a display device and a control apparatus 100 according to some embodiments;

fig. 2 illustrates a hardware configuration block diagram of the control apparatus 100 according to some embodiments;

fig. 3 illustrates a hardware configuration block diagram of the display apparatus 200 according to some embodiments;

FIG. 4 illustrates a software configuration diagram in a display device 200 according to some embodiments;

FIG. 5 illustrates a schematic diagram of playing video content with subtitle content on a display device 200, according to some embodiments;

FIG. 6 illustrates a schematic diagram of a display device 200 displaying a menu page with a subtitle property page entry on a user interface according to some embodiments;

FIG. 7 illustrates a schematic diagram of a display device 200 displaying a subtitle property page on a user interface according to some embodiments;

FIG. 8 illustrates a schematic diagram of a subtitle encoding page on a user interface of a display device 200 according to some embodiments;

FIG. 9 illustrates a schematic diagram of a size page on a user interface of the display device 200, according to some embodiments;

FIG. 10 illustrates a schematic diagram of a content color page on a display device 200 user interface, according to some embodiments;

FIG. 11 illustrates a schematic diagram of a background color page on a display device 200 user interface, according to some embodiments;

FIG. 12 shows a schematic diagram of a process for a display device 200 interacting with a user, according to some embodiments;

FIG. 13 illustrates a flow diagram of a method for previewing subtitles on a display device according to some embodiments;

FIG. 14 shows another schematic diagram of a display device 200 and user interaction process, according to some embodiments;

FIG. 15 illustrates a user interface diagram for pausing playback of video content on a display device 200 according to some embodiments;

FIG. 16 illustrates a schematic diagram of the location of a predetermined display area on the display device 200, according to some embodiments;

FIG. 17 illustrates another schematic diagram of the location of a preset display area on the display device 200, according to some embodiments;

FIG. 18 illustrates a schematic diagram of a transparency page on a user interface of the display device 200, according to some embodiments;

FIG. 19 illustrates a schematic diagram of a display device 200 displaying a subtitle background transparency of 80% according to some embodiments;

FIG. 20 illustrates a schematic diagram of subtitle content processing between modules on a display device 200 according to some embodiments;

fig. 21 illustrates another schematic diagram of subtitle content processing between modules on a display device 200 according to some embodiments.

Detailed Description

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 shows a schematic diagram of an operational scenario between a display device and a control apparatus 100 according to some embodiments. 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 command control of the user may be directly received by a module configured inside the display device 200 to obtain a voice command, or may be received by a voice control device 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 illustrates a block diagram of a hardware configuration of the control apparatus 100 according to some embodiments. 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 by the display device 200, serving as an interaction intermediary between the user and the display device 200.

Fig. 3 illustrates a hardware configuration block diagram of a display device 200 according to some embodiments.

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 includes a processor, a video processor, an audio processor, a graphic 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 apparatus 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 RAM 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 is acceptable to the user. 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.

Referring to fig. 4, in some embodiments, the system is divided into four layers, which are an Application (Applications) layer (abbreviated as "Application layer"), an Application Framework (Application Framework) layer (abbreviated as "Framework layer"), an Android runtime (Android runtime) and system library layer (abbreviated as "system runtime library layer"), and a kernel layer from top to bottom.

In some embodiments, at least one application program runs in the application program layer, and the application programs may be windows (windows) programs carried by an operating system, system setting programs, clock programs or the like; or an application developed by a third party developer. In particular implementations, the application packages in the application layer are not limited to the above examples.

The framework layer provides an Application Programming Interface (API) and a programming framework for the application. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resources in the system and obtain the services of the system in execution through the API interface.

As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Provider or a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used for interacting with all activities running in the system; the Location Manager (Location Manager) is used for providing the system service or application with the access of the system Location service; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.

In some embodiments, the activity manager is used to manage the lifecycle of the various applications as well as general navigational fallback functions, such as controlling exit, opening, fallback, etc. of the applications. The window manager is used for managing all window programs, such as obtaining the size of a display screen, judging whether a status bar exists, locking the screen, intercepting the screen, controlling the change of the display window (for example, reducing the display window, displaying a shake, displaying a distortion deformation, and the like), and the like.

In some embodiments, the system runtime layer provides support for the upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs the C/C + + library included in the system runtime layer to implement the functions to be implemented by the framework layer.

In some embodiments, the kernel layer is a layer between hardware and software. As shown in fig. 4, the core layer includes at least one of the following drivers: 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 content such as video played on the current display device 200, for example, a television program, a variety program, a news program, etc., is displayed with subtitles synchronously, for example, the content of a tv show currently played on the display device 200 shown in fig. 5, at this time, the character a in the tv show is speaking, and the corresponding subtitle content is "life is not always available".

For a common display device 200, such as a computer, a television, a mobile phone, etc., a corresponding player is developed for playing video. Subtitles as an integral function of the player will also provide some favorite settings to the user. Such as allowing the user to set the size of the subtitle text, the color of the subtitle text, the background color of the subtitle display area, and the like. Especially for some subtitles, correct subtitle coding needs to be set, otherwise, the subtitles may be displayed as messy codes and cannot be read normally.

For a video file, the pictures are continuously output, but the subtitles are different. Subtitles require a specific text content to be displayed at a specific time point, and the updating of the subtitles has a certain time interval. Taking a movie as an example, each subtitle is updated in synchronization with the character dialog time. Therefore, the user often cannot view the set effect immediately when the subtitle preference is set, and the user must wait until the subtitle is displayed at the time point when the subtitle is played to view the set effect of the subtitle. The time point for displaying the subtitles is uncertain, and the user needs to wait for the subtitles to appear to view the set effect, so that the waiting time is uncertain. This may cause a problem that a user may waste too much time to wait for the display of the effect when setting the subtitle, thereby causing a poor interactive experience between the user and the display device 200.

Based on this, the embodiment of the present application provides a display device 200, which can instantly display the setting effect of the user on the subtitle content when playing the video content.

The display device 200 in the embodiment of the present application may provide a setting page for setting a subtitle attribute for a user, and may also provide a preset display area for displaying a subtitle setting effect for the user.

While the display apparatus 200 is playing video content, if a user wants to set a subtitle, a subtitle attribute page may be selected to be opened on a user interface currently displaying the video content. In the embodiment of the present application, the operation of opening the subtitle attribute page by the user may be to move a focus on the user interface through a control device 100 such as a remote controller, and further select an entry of the subtitle attribute page; or by pressing function keys such as menu keys on the control apparatus 100 such as a remote controller, which are associated with some menu pages on the display device 200, and on which entries for subtitle attribute pages are provided; it is also possible that the user inputs a voice instruction to the display device 200 by means of a voice assistant or the like, and the voice instruction may control the display device 200 to directly enter the subtitle attribute page.

Fig. 6 illustrates a schematic diagram of a display device 200 displaying a menu page with a subtitle property page entry on a user interface according to some embodiments. As shown in fig. 6, the menu page may be displayed on the right side of the user interface as shown in fig. 5, and may include some video content related function entries, such as "subtitle", "display", "audio", etc. When the user selects the "subtitle" entry, the display apparatus 200 displays a subtitle attribute page.

Fig. 7 illustrates a schematic diagram of a display device 200 displaying a subtitle property page on a user interface according to some embodiments. As shown in fig. 7, the subtitle attribute page may also be displayed on the right side of the user interface, including some options for subtitle attributes such as subtitle encoding, font size, content color, background color, and so on. The user may select any subtitle attribute on the subtitle attribute page to control the display device 200 to display the corresponding attribute page. Meanwhile, the display device 200 displays the subtitle attribute page and also displays the preset display area 201, and preset subtitle content as preview content may be displayed in the preset display area 201, for example, "i have all got this".

When the user selects the subtitle encoding option, the display device 200 may display a subtitle encoding page as shown in fig. 8, where the page includes several options of different encoding modes, such as utf8(Universal Character Set/Universal transform Format 8, 8 bits), gb (GuoBiao, national standard), big5 (big five codes), ios, windows, and so on. The encoding mode indicates a mode of storing the subtitle content in the display apparatus 200, when the display apparatus 200 needs to display the subtitle content, the stored subtitle content needs to be decoded by using a corresponding decoding mode, and the display apparatus 200 may also decode the subtitle content by using a different decoding mode through selection of a different encoding mode by a user.

In the embodiment of the application, one coding mode can correspond to a decoding mode with a unified name, and the corresponding decoding mode can be determined by determining the coding mode of the subtitle content.

When the user selects the text size option, a size page as shown in fig. 9 may be displayed on the display device 200, and a number of size options, such as four, three, etc., may be included on the page. The user can select the corresponding font size according to the preference and viewing habit of the user, and the display device 200 correspondingly adjusts the size of all the characters, letters or symbols in the subtitle content.

When the user selects the content color option, a content color page as shown in fig. 10 may be displayed on the display device 200, and several color options, such as white, black, yellow, red, blue, etc., are included on the page. The user can select the corresponding font color according to the preference and viewing habit of the user, and the display device 200 correspondingly adjusts the color of all the characters, subtitles, symbols and the like of the subtitle content.

When the user selects the background color option, a background color page as shown in fig. 11 may be displayed on the display device 200, and several color options, such as white, black, yellow, red, blue, etc., may be included on the page. The user may select the corresponding background color according to his/her preference and viewing habit, etc., and the display device 200 may set the background color of the subtitle content to be most corresponding. The background of the caption content in the embodiment of the present application refers to an area where no text, letter, or symbol is displayed in the area where the caption content is displayed, which is defined on the user interface. For example, the display device 200 normally plays video content, and usually has a fixed area for displaying subtitle content, in some cases, this area may present a rectangle, and characters, letters, symbols, or the like displayed in the rectangular area may not completely cover the entire rectangular area, and in this case, the uncovered area may be regarded as the background of the subtitle content.

It should be noted that, in the subtitle display area having the background, the color of the background cannot be the same as the color of the subtitle content, thereby avoiding the problem of inability to clearly display the subtitle content.

FIG. 12 shows a schematic diagram of a process for a display device 200 to interact with a user, according to some embodiments. As shown in fig. 12, when the display device 200 plays video content, the user may issue a control instruction to the display device 200 through the control apparatus 100 to control the display device 200 to display a subtitle attribute page. After the display device 200 displays the subtitle attribute page, the preset display area 201 is immediately displayed on the current user interface, and the user can preview the effect of the subtitle attribute setting in this area. In the process of the setting operation, if the user does not select any subtitle attribute, the acquired preset subtitle content or the subtitle attribute effect set by the user last time is directly displayed in the preset display area 201. After the user selects the target attribute on the subtitle attribute page through the control device 100, the display device 200 sets the corresponding attribute of the preset subtitle content, and displays the set display effect in the preset display area 201.

The preset display area 201 in the aforementioned contents always displays the same contents of characters, letters or symbols, except that the attributes of the contents are changed according to the selection of the user.

As can be seen from the foregoing content, the display device 200 in the embodiment of the present application can provide a function of setting subtitles for a user while playing video content, and a display effect after the subtitles are set can be displayed immediately, so that a user can change attributes of the subtitles at any time, display of the effect after the subtitles are set is accelerated, and interaction experience between the user and the display device 200 is also improved.

In order to solve the problem that the setting effect cannot be displayed in real time in the subtitle setting mode provided by the display device 200 for the user, an embodiment of the present application further provides a method for previewing subtitles on a display device, which may be applied to the display device 200 of the foregoing embodiment and executed by the controller 250 in the display device 200. As shown in fig. 13, the method may specifically include the following steps:

step S101, when the display device 200 plays the video content, in response to a user operation of selecting to open a subtitle attribute page on a user interface, acquiring preset subtitle content from a subtitle file corresponding to the video content. Wherein the user interface is displayed by the display 260 of the display device 200.

The preset subtitle content is acquired according to a subtitle content extraction condition preset in the display apparatus 200. For example, the preset condition requires the display apparatus 200 to extract a first piece of subtitle content corresponding to each video content as the preset subtitle content, or the preset condition requires the display apparatus 200 to extract a third piece of subtitle content corresponding to each video content as the preset subtitle content, and so on. In addition, the preset subtitle content, the target subtitle content, and the like in the embodiments of the present application all refer to preview subtitle content used as an effect preview, and do not refer to subtitle content played in real time during video content playing.

During the playing of the video content by the display device 200, the user may want to set the subtitles to display effects that better meet the requirements or preferences of the user. At this time, the user may operate on the user interface where the display device 200 currently plays the video content, and control the display device 200 to display the subtitle attribute page. The subtitle attribute page may be as previously described in fig. 7.

In step S101, after the display device 200 displays the subtitle attribute page, the subtitle file corresponding to the currently played video content may be immediately acquired, and the preset subtitle content may be acquired from the subtitle file. In addition, after the display device 200 displays the subtitle attribute page, a preset display area 201 is also displayed on the current user interface immediately, so that the preset subtitle content is displayed for the user to preview the effect.

Since the display device 200 needs to store the subtitle file in a specific encoding manner when the subtitle file is acquired, each piece of subtitle content also needs to be fetched from the storage space and decoded when the specific content in the subtitle file is displayed. The decoding mode and the coding mode are corresponding, otherwise, the problem that the decoded caption content has messy codes when being displayed occurs.

In some cases, the display apparatus 200 does not know the corresponding encoding method when decoding the subtitle content, and thus it is difficult to determine the decoding method. In the current display device 200, usually, a user sequentially selects a decoding mode on a subtitle coding page, the display device 200 uses the selected decoding mode to decode subtitle content and then displays the decoded subtitle content at a real subtitle playing time point, if the distance between the current decoding mode selecting time point and the real subtitle playing time point is longer, the user needs to wait for a period of time to watch the effect of subtitle display, and if the displayed subtitle is not a messy code, the user can know that the current decoding mode is correct; and if the displayed caption is messy code, the user needs to reselect the decoding mode and then waits for the display effect of the next caption.

It can be seen that, in the current display device 200, the setting effect can only be displayed when the subtitle appears, and a certain time delay exists for the display effect of subtitle decoding, which also affects the user experience. Therefore, in some embodiments, as shown in fig. 14, a preset decoding manner may also be set in the display device 200, and after the preset subtitle content is acquired in step S101, the preset subtitle content is decoded by using the preset decoding manner to acquire the decoded subtitle content. After decoding, the decoded caption content is directly displayed in the preset display area 201, so that the user can know whether decoding is successful by using the preset decoding mode in time, that is, whether the decoded caption content is scrambled. If the scrambled decoded caption content is displayed on the user interface, the user can continuously select other decoding modes on the caption coding page in the caption attribute page to continuously decode the preset caption content.

If normal decoded subtitle content which is not scrambled is displayed on the user interface, the user can continue to select other attribute pages to display on the subtitle attribute page, and further select other attributes of the subtitle to set. For example, the user selects the font size attribute, the display device 200 displays a font size page, and the user selects a certain font size option on the font size page, thereby adjusting the size of the characters, letters, or symbols in the decoded subtitle content in the preset display area 201.

In some cases, when the subtitle content is stored on the display device 200, a flag bit in the encoded subtitle content indicates the encoding mode. Therefore, in some embodiments, after the preset subtitle content is obtained in step S101, it may be determined whether the preset subtitle content includes a flag bit indicating a coding mode, if so, a decoding mode corresponding to the coding mode and the coding mode may be determined according to the flag bit, and the decoding mode is determined as a decoding mode to be selected, and then the preset subtitle content is decoded by using the decoding mode to be selected, so as to obtain the decoded subtitle content.

And if the flag is not included in the preset subtitle content obtained in step S101, decoding the preset subtitle content using a preset decoding method in the display apparatus 200, thereby obtaining decoded subtitle content.

Step S102, responding to the user operation of selecting the target attribute on the subtitle attribute page, and setting the corresponding attribute of the preset subtitle content according to the content of the target attribute to obtain the target subtitle content.

As described in the foregoing, if the decoded subtitle content displayed by the display device 200 in the preset display area 201 is scrambled, the user may continue to select another decoding method on the subtitle attribute page to decode the preset subtitle content again. Further, in step S102, it may be determined whether the user selects a target decoding manner on the subtitle encoding page in the subtitle attribute page, and if the user selects the target decoding manner, the preset subtitle content may be re-encoded using the target decoding manner, so as to obtain the target subtitle content.

Alternatively, if the display device 200 directly displays the preset subtitle content in the preset display area 201, in step S102, the user may also select a target decoding method on the subtitle encoding page in the subtitle attribute page, so that the preset subtitle content is directly decoded by the target decoding method in the display device 200.

In some embodiments, the user may set the font size of the subtitle in addition to the subtitle decoding manner. Further, after the decoded caption content is displayed in the preset display area 201, it may be determined whether the user selects a target font size on the font size page in the caption attribute page. If the user selects the target font size, the font size of the text of the decoded subtitle content can be set according to the target font size, so that the target subtitle content is obtained.

Alternatively, if the display device 200 directly displays the preset subtitle content in the preset display area 201, in step S102, the user may also select a target font size on the font size page of the subtitle attribute page, thereby directly adjusting the font size of the preset subtitle content to the target font size in the display device 200.

In some embodiments, the user may also set the color of the subtitle content. Further, after the decoded subtitle content is displayed within the preset display area 201, it may be determined whether the user selects a target color on a content color page in the subtitle attribute page. If the user selects the target color, the color of the decoded subtitle content may be set according to the target color, thereby obtaining the target subtitle content.

Alternatively, if the display apparatus 200 directly displays the preset subtitle content in the preset display area 201, in step S102, the user may also select a target color on the content color page of the subtitle attribute page, thereby directly adjusting the color of the preset subtitle content to the target color in the display apparatus 200.

In some embodiments, the user may also set the background color of the subtitle content. Further, after the decoded subtitle content is displayed in the preset display area 201, it may be determined whether the user selects a target background color on a background color page in the subtitle attribute page. If the user selects the target background color, the background color of the decoded subtitle content may be set according to the target background color, thereby obtaining the target subtitle content.

Alternatively, if the display device 200 directly displays the preset subtitle content in the preset display area 201, in step S102, the user may also select a target background color on the background color page of the subtitle attribute page, so as to directly adjust the background color of the preset subtitle content to the target background color in the display device 200.

In the above-described contents, after previewing the decoded subtitle content displayed in the preset display area 201, the user may set any one, any several or all of attributes such as subtitle encoding, font size, content color and background color. The target attribute in the embodiment of the present application refers to a target decoding mode selected by a user on a subtitle coding page, a target font size selected by the user on a font size page, a target color selected by the user on a content color page, a target background color selected by the user on a background color page, and the like.

And step S103, displaying the target subtitle content in a preset display area on the user interface.

In the above process of setting the subtitle attribute, the video content may be normally played on the user interface of the display apparatus 200. On the user interface for playing the video content, a preset display area 201 is displayed, and then a display effect for setting the subtitle attribute is displayed in real time. The subtitle content with the set attribute is the target subtitle content in the embodiment of the application. If the display effect of the target subtitle content cannot meet the user's needs or the user's preferences, the user may also re-select the target attribute on the corresponding attribute page.

In some cases, the subtitle content may be normally displayed in the video content normally played by the display device 200, and at a certain time point, the normally displayed subtitle content and the target subtitle content in the preset display area 201 may be simultaneously displayed on the user interface, which may result in that the user cannot determine which subtitle content is the subtitle content with the preview setting effect, thereby affecting the user experience of the user. To avoid this, in some embodiments, the display apparatus 200 may be controlled not to display normally played subtitle content during the process of setting the subtitle attribute by the user.

In some embodiments, in order to avoid the influence of the subtitle content in the video content normally played on the display device 200 on the target subtitle content in the preset display area 201, the video content being played may also be controlled to be paused during the process of setting the subtitle attribute by the user. For example, as shown in fig. 15, when the user selects a subtitle attribute setting operation on the video content interface being played, the display device 200 may pause playing the video content while displaying a subtitle attribute page, and display a preset display area 201 on the currently paused user interface. In addition, the real subtitle content is not displayed on the currently paused user interface.

In some embodiments, the position of the preset display area 201 on the user interface is not fixed, and may also be displayed at other positions on the user interface where the subtitle attribute page is not occluded, for example, at the left side of the user interface as shown in fig. 16, or at the top of the user interface as shown in fig. 17, and the like.

In the foregoing embodiment, if the user sets the background color of the subtitle, when the subtitle is normally displayed, a part of the video content is blocked by the area of the background color, which may affect the viewing experience of the user. To avoid this, in some embodiments, the display device 200 may also set the content for an attribute that provides the user with transparency of the subtitle background, i.e., add a background transparency attribute in the subtitle attribute page along with a transparency page. If the user wants to set the color of the subtitle background and does not want the subtitle background to shield the video content, the user can select a target numerical value on the transparency page, and then the transparency of the subtitle background is set. FIG. 18 illustrates a schematic diagram of a transparency page on a user interface of the display device 200 according to some embodiments, such as shown in FIG. 19, including a number of transparency values thereon, e.g., 0%, 10%, 30%, 50%, 80%, 100%, etc. When the user selects different transparency values, different transparencies of the subtitle background can be displayed on the display device 200. Taking the transparency of 80% as an example, the transparency display effect of the subtitle background is shown in fig. 19.

In some embodiments, different processing modules may also be disposed in the display device 200 to achieve acquisition or processing of different contents, such as a subtitle parsing module, a subtitle setting module, a subtitle display module, and the like. The caption display module can display the caption content, wherein the caption analysis module can analyze the caption content, the caption setting module can set the attribute of the caption content according to the selection of a user or the preset content and the like.

As shown in fig. 20, when the subtitle decoding mode is set, the subtitle setting module calls the subtitle parsing module to obtain a piece of real subtitle content in advance. The caption setting module sets a caption decoding mode, and the caption analyzing module decodes the caption content by using the decoding mode and then sends the decoded caption content to the caption display module for display. Through the steps, the user can immediately preview the display effect after the subtitle decoding setting, the subtitle content can be correctly displayed if the subtitle decoding mode setting is correct, otherwise, messy codes can be displayed, and the user needs to set other decoding modes again for previewing.

In addition, on the basis of the subtitle parsing module, the subtitle setting module, and the subtitle display module, the display device 200 may further add a coding identification module for identifying a coding flag bit in the subtitle content and determining which coding mode is adopted by the subtitle content.

As shown in fig. 21, when the subtitle decoding mode is set, the subtitle setting module calls the subtitle parsing module to obtain a piece of real subtitle content in advance. The caption analysis module sends the caption content to the coding identification module. The coding identification module analyzes the coding mode of the caption content and then returns the analysis result to the caption setting module. The caption setting module updates the user interface according to the analyzed coding mode, highlights the corresponding coding option in the caption coding page, and sets the decoding mode corresponding to the coding mode to the caption analyzing module. And the subtitle analysis module decodes the subtitle content according to the set decoding mode and then sends the decoded subtitle content to the subtitle display module for display.

And when the user sets other attributes, the subtitle setting module may also send the corresponding attribute values or attribute options to the subtitle display module for display.

In the embodiment of the present application, although the foregoing subtitle parsing module, subtitle setting module, subtitle display module, encoding identification module, and the like may be added, these processing modules are controlled by the controller 250 of the display device 200 to implement specific processing functions.

When the subtitle attribute setting is completed, the user may continue to operate the display apparatus 200 and the controller to close the current subtitle attribute page. Therefore, after step S103, if the display apparatus 200 receives an operation of the user selecting to close the subtitle attribute page, the display apparatus 200 may be controlled to close the preset display area 201 while closing the subtitle attribute page. And controlling all contents corresponding to the current video content on the display device 200 to be set and displayed according to the attribute selected by the user.

If the video content on the display device 200 is in a pause playing state when the subtitle attribute is set, after the display device 200 is controlled to broadcast the subtitle attribute page and the preset display area 201, the video content is further controlled to continue playing, and all subtitle content corresponding to the video content is displayed according to the attribute selected by the user.

It should be noted that the subtitle attributes mentioned in the embodiment of the present application include, but are not limited to, the attributes listed in the foregoing contents, and in the process of actually using the display device 200, the display requirements of the user for the subtitle content may be taken as the attributes of the subtitle content, and the setting manner may refer to the contents in the foregoing embodiments, which is not described herein again.

As can be seen from the above, the embodiment of the present application provides a method for previewing subtitles on a display device and a display device, so that a user can set the subtitle attributes of a video content while the display device 200 plays the video content. And after the attribute is set, the display effect after the setting can be directly displayed on the display device 200 in real time, so that the user can conveniently set the attribute in time, the subtitle setting effect can be prevented from being displayed only when the subtitle content is synchronously displayed on the video content, the time for the user to wait for the effect display is saved, and the experience of the user in using the display device 200 is further ensured.

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

1. A display device, comprising:

a display configured to: displaying a user interface;

a controller connected to the display, the controller configured to:

when video content is played by display equipment, responding to user operation of selecting and opening a subtitle attribute page on a user interface, and acquiring preset subtitle content from a subtitle file corresponding to the video content;

responding to user operation of selecting a target attribute on the subtitle attribute page, and setting corresponding attributes of the preset subtitle content according to the content of the target attribute to obtain target subtitle content;

and displaying the target subtitle content in a preset display area on the user interface.

2. The display device of claim 1, wherein the controller is further configured to:

after preset subtitle content is acquired from a subtitle file corresponding to the video content, decoding the preset subtitle content by using a preset decoding mode to acquire decoded subtitle content;

and displaying the decoded subtitle content in a preset display area on the user interface.

3. The display device of claim 1, wherein the controller is further configured to:

after preset subtitle content is obtained from a subtitle file corresponding to the video content, whether a flag bit used for representing a coding mode is included in the preset subtitle content is determined;

if the preset subtitle content comprises the zone bit, determining a decoding mode to be selected according to the content of the zone bit;

decoding the preset subtitle content by using the decoding mode to be selected to obtain decoded subtitle content;

4. The display device of claim 3, wherein the controller is further configured to:

and if the preset subtitle content does not comprise the flag bit, decoding the preset subtitle content by using a preset decoding mode to obtain decoded subtitle content.

5. The display device according to any one of claims 2-4, wherein the controller is further configured to:

after the decoded subtitle content is displayed in the preset display area, determining whether a user selects a target decoding mode on the subtitle attribute page;

and if the user selects a target decoding mode on the subtitle attribute page, decoding the preset subtitle content again by using the target decoding mode to obtain the target subtitle content.

6. The display device according to any one of claims 2-4, wherein the controller is further configured to:

after the decoded subtitle content is displayed in the preset display area, determining whether a user selects a target font size on the subtitle attribute page;

and if the user selects the target font size on the subtitle attribute page, setting the font size of the characters of the decoded subtitle content according to the target font size to obtain the target subtitle content.

7. The display device according to any one of claims 2-4, wherein the controller is further configured to:

after the decoded subtitle content is displayed in the preset display area, determining whether a user selects a target color on the subtitle attribute page;

and if the user selects the target color on the subtitle attribute page, setting the color of the decoded subtitle content according to the target color to obtain the target subtitle content.

8. The display device according to any one of claims 2-4, wherein the controller is further configured to:

after the decoded subtitle content is displayed in the preset display area, determining whether a user selects a target background color on the subtitle attribute page;

and if the user selects the target background color on the subtitle attribute page, setting the background color of the decoded subtitle content according to the target background color to obtain the target subtitle content.

9. The display device of claim 1, wherein the controller is further configured to:

and responding to the user operation of selecting to close the subtitle attribute page on the user interface, closing the preset display area, and controlling all subtitle contents in the subtitle file corresponding to the video contents to be displayed according to the target attribute.

10. A method for previewing subtitles on a display device, comprising: