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WO2008000179A1 - Procédé et dispositif permettant d'afficher des légendes - Google Patents

Procédé et dispositif permettant d'afficher des légendes Download PDF

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Publication number
WO2008000179A1
WO2008000179A1 PCT/CN2007/070136 CN2007070136W WO2008000179A1 WO 2008000179 A1 WO2008000179 A1 WO 2008000179A1 CN 2007070136 W CN2007070136 W CN 2007070136W WO 2008000179 A1 WO2008000179 A1 WO 2008000179A1
Authority
WO
WIPO (PCT)
Prior art keywords
window
subtitles
video
subtitle
superimposed
Prior art date
Application number
PCT/CN2007/070136
Other languages
English (en)
Chinese (zh)
Inventor
Jianbo Peng
Original Assignee
Tencent Technology (Shenzhen) Company Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tencent Technology (Shenzhen) Company Limited filed Critical Tencent Technology (Shenzhen) Company Limited
Publication of WO2008000179A1 publication Critical patent/WO2008000179A1/fr

Links

Classifications

    • 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
    • H04N21/488—Data services, e.g. news ticker
    • H04N21/4884—Data services, e.g. news ticker for displaying subtitles
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/4143—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a Personal Computer [PC]
    • 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
    • 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
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • 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
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4431—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB characterized by the use of Application Program Interface [API] libraries
    • 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

Definitions

  • the present invention relates to subtitle processing techniques, and more particularly to a method and apparatus for displaying subtitles. Background of the invention
  • Subtitles are a technology widely used in audio and video broadcasting such as television and movies.
  • the appearance of subtitles makes it easier for viewers to understand the audio and video content being played.
  • spoken content in the program, or any other additional information related to the content of the program is displayed by text.
  • a general TV series will simultaneously display the words that the characters in the TV series are saying in the form of subtitles, and the music programs usually display the lyrics in the form of subtitles.
  • the predetermined font data is compressed into the video stream by means of codec, and when the end user is reached, the subtitles can be displayed synchronously when the video stream is played.
  • P2P peer-to-peer
  • various audio and video signals such as television signals, movie signals, and radio broadcast signals can be converted into real-time data streams, and then transmitted to a personal computer (PC, Personal Computer) through p2p technology, and finally directly by the user on the PC.
  • Watch live video content such as TV, movies, or listen to live audio content such as radio broadcasts.
  • FIG. 1 is a schematic diagram showing display of caption data in the prior art.
  • the caption data and the video stream are first compressed and mixed at the transmitting end to form a data stream, and then the data stream is sent to the PC through a media such as the Internet, and finally the data stream is parsed by the PC, and the video stream is played and Display caption data.
  • the subtitles in the prior art are mixed and transmitted in the video stream. Therefore, when the subtitle data is displayed on the PC, the user can only passively watch the subtitles on the video, and cannot interact with the subtitles.
  • PC users have a strong desire to perform interactions. They are used to performing various interactions through computer peripherals such as mice and keyboards. Therefore, users may wish to use the mouse while watching or listening to programs on the PC.
  • Computer peripherals such as keyboards are used to achieve the purpose of interacting with subtitles. For example, when playing a program on a PC, the user may be very interested in a certain protagonist in the program, and would like to know the basic information of the protagonist.
  • the user can only passively watch the subtitles on the video.
  • the main purpose of embodiments of the present invention is to provide a method for displaying subtitles so that a user can interact with subtitles.
  • Another object of embodiments of the present invention is to provide an apparatus for displaying subtitles to enable a user to interact with subtitles.
  • a method for displaying a subtitle comprising:
  • An apparatus for displaying subtitles comprising a window generating unit and a subtitle display unit, wherein:
  • a window generating unit configured to add a window on the video display interface, and superimpose the window Go to the video display interface
  • a subtitle display unit for displaying subtitles in the superimposed window.
  • the present invention first, a window is added to the video display interface, and the window is superimposed on the video display interface; and then the subtitle is displayed in the superimposed window. It can be seen that, after applying the present invention, since the subtitle is no longer displayed by parsing the video stream, but the window is newly added and the subtitle is displayed in the window, the subtitle of the present invention is independent of the video data, and the user is no longer simply Passively receiving subtitles, but being able to interact with subtitles to trigger various operations. BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic diagram showing display of subtitles in the prior art.
  • FIG. 2 is a flow chart of an exemplary method of displaying subtitles according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of displaying subtitles according to an exemplary embodiment of the present invention.
  • FIG. 4 is a schematic diagram of displaying subtitles according to another exemplary embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an apparatus for displaying subtitles according to an embodiment of the present invention. Mode for carrying out the invention
  • a window is added to the video display interface, and the window is superimposed on the video display interface; and the subtitle is displayed in the superimposed window. Therefore, the present invention displays the subtitles in the window instead of parsing the video stream, so that the subtitles of the present invention are independent of the video data, and the user no longer passively receives the subtitles, but can interact with the subtitles. Trigger various operations. Moreover, since the window has a lot of mature operation commands, the present invention is also very convenient to perform interaction. 2 is a flow chart of an exemplary method of displaying subtitles according to an embodiment of the present invention. As shown in Figure 2, the method includes:
  • Step 201 Add a window on the video display interface, and superimpose the window on the video display interface;
  • Step 202 Display the subtitles in the superimposed window.
  • the predetermined superimposed position may be located at the bottom, top, or bottom right corner of the video display interface.
  • the position of the window on the video display interface is determined by four values: Left, Top, Width, and Height.
  • an arithmetic expression can be used to represent the position of the window.
  • the expression allows scr_width to represent the video width and scrjieight to represent the video height. In this way, the subtitle can be displayed at any position on the video display interface.
  • the video may be either a video based on a real-time data stream or a normal video file stored locally.
  • the client of the video display interface receives the control flow from the remote end, and the control flow includes an overlay window instruction and a subtitle; and then the client further uses the overlay window instruction according to the overlay window instruction.
  • a new window is displayed on the video display interface, and the window is superimposed on the video display interface, so that the superimposed window is used to display the subtitles included in the control stream.
  • the overlay window instruction may specifically include a CreateWindow command and information indicating a position where the window is superimposed.
  • the CreateWindow command is a standard command to open a new window.
  • the information indicating the superimposed position of the window is used to indicate the superimposed position of the window on the video display interface.
  • the control flow including the overlay window command and the subtitle can be transmitted to the client simultaneously with the real-time video data stream, or can be transmitted to the client at different times.
  • the subtitle content is directly related to the video content, for example, when the subtitle is a translation of the video content, the video content and the subtitle need to be synchronized during playback.
  • a timer can be set to control the synchronization of the video playback time and the subtitle display time.
  • the subtitle content is not directly related to the video content, such as when the advertisement information, the lead introduction information, or the instant major news information is played in the subtitle, the subtitle may be out of sync with the video content.
  • an overlay window instruction can be created locally on the video player side, and the overlay window instruction is associated with the video file.
  • the overlay window instruction also preferably includes a CreateWindow command and information indicating the position of the window overlay, wherein the CreateWindow command is a standard command to open a new window, and information indicating the position of the window overlay is used to indicate the superimposed position of the window on the video display interface.
  • the associated overlay window command is executed at the same time, a new window pops up, and the window is overlaid onto the video display interface to enable display of the caption in the window.
  • the subtitle may be a subtitle transmitted from a remote end by the server, or may be a subtitle saved locally.
  • the present invention can utilize the window to realize the Various interactions of subtitles. For example, you can open a new window, open a new browser interface, open a new application, close a running application, close an existing browser interface, close an existing window, etc. after the user clicks on the subtitle. Thereby the user can interact richly with the subtitles.
  • the subtitles can be displayed in the superimposed window in various ways in the present invention.
  • the text can be first drawn by the GDI in the superimposed window, and then the subtitle scrolling effect of the drawn text can be achieved by changing the display position of the drawn text in the window.
  • FIG. 3 is a schematic diagram of displaying subtitles according to an exemplary embodiment of the present invention, in which subtitles are displayed in the superimposed window using the DrawText API.
  • DrawText API When using the DrawText API, first draw the text at the coordinate (x, y) position on the window through the DrawText API, and set a timer through SetTimer. When the timer is triggered, x is reduced accordingly, and then the window is redrawn. The effect of subtitle scrolling to the left can be achieved. Similarly, if X is increased correspondingly, the window is redrawn, so that the effect of subtitle scrolling to the right can be achieved. Obviously, to achieve subtitle scrolling in other directions, you can increase or decrease the X or y value accordingly.
  • the message loop of this window in response to the WM_LBUTTONUP message, if the message can be obtained, it means that the user clicks on the subtitle by mouse, and then the related action can be performed through the demand.
  • a typesetting interaction engine control may also be created in the superimposed window, and then the typeface interaction engine control is used to display the subtitle.
  • HtmlView control uses the HtmlView control as an example to explain how to use the typesetting interaction engine control to display subtitles.
  • HtmlView control uses the HtmlView control as an example to explain how to use the typesetting interaction engine control to display subtitles.
  • the HtmlView control is a free control provided by Microsoft that makes it easy to browse a web page and execute html code. Different from drawing text with various GDI, using typesetting The way to interact with the engine control does not directly implement the subtitles. Instead, first create an HtmlView control on the superimposed window, and preferably set the size of the HtmlView's control to the same as the superimposed window.
  • FIG. 4 is a schematic diagram showing display of subtitles according to another exemplary embodiment of the present invention, in which subtitles are displayed in the superimposed window using the HtmlView control.
  • the Html code supported by the HtmlView control can display subtitles and perform various interactive operations.
  • HtmlView control makes it easy to implement rich expressions such as RichText, images, and more.
  • the superimposed window may be a transparent color.
  • the superimposed window can be black, red, etc., which can strongly attract the visual emphasis.
  • the user clicks on the displayed subtitles with the computer peripheral device to trigger an interaction with the subtitles.
  • These actions include opening a new window, opening a new browser interface, opening a new application, closing a running application, closing an existing browser interface, closing an existing window, and so on.
  • the present invention is also very convenient to perform interaction.
  • an apparatus for displaying a subtitle is also disclosed.
  • FIG. 5 is a schematic structural diagram of an apparatus for displaying subtitles according to an embodiment of the present invention.
  • the apparatus 500 includes a window generating unit 501 and a caption display unit 502. among them:
  • a window generating unit 501 configured to add a window to the video display interface, and superimpose the window on the video display interface
  • the subtitle display unit 502 is configured to display subtitles in the superimposed window.
  • the apparatus may further comprise a caption interaction unit 503.
  • a subtitle interactive unit for selecting a displayed subtitle by using a computer peripheral device to trigger an interaction with the subtitle.
  • the video can be either a video based on a live stream or a normal video file stored locally.
  • the window generating unit 501 is configured to receive a control flow from the remote end including the overlay window command and the subtitle, and add a window on the video display interface according to the overlay window instruction.
  • the window is superimposed on the video display interface; the subtitle display unit 502 is configured to display the subtitle in the control stream in the superimposed window.
  • the overlay window instruction preferably includes a CreateWindow command and information indicating the position of the window overlay, wherein the CreateWindow command is a standard command to open a new window, and the information indicating the position of the window overlay is used to indicate the superimposed position of the window on the video display interface.
  • the window generating unit 501 executes the associated overlay window instruction, and a new window pops up, and the window is superimposed on the video display interface to enable The subtitles are displayed in this window.
  • the subtitle may be a subtitle transmitted from a remote end by the server, or may be a subtitle saved locally.
  • subtitles can be displayed in the superimposed window in various ways in the present invention.
  • the text can be first drawn in the superimposed window by GDI, and then the subtitle scrolling effect of the drawn text can be realized by changing the display position of the drawn text in the window.
  • the caption display unit 502 can be configured to draw a text in the superimposed window by using GDI, and change a display position of the drawn text in the window to implement a caption scrolling effect of the drawn text.
  • the caption display unit 502 is further configured to create a typesetting interaction engine control in the superimposed window, and display the subtitles by using the typesetting interaction engine control.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Library & Information Science (AREA)
  • Software Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Studio Circuits (AREA)

Abstract

La présente invention concerne un procédé permettant d'afficher des légendes, lequel procédé consiste (étape A) à ajouter une nouvelle fenêtre sur une interface d'affichage vidéo puis à la recouvrir dans l'interface d'affichage vidéo; (étape B) à afficher les légendes dans la fenêtre recouverte. Ce mode de réalisation permet à un utilisateur d'activer plusieurs sortes d'opérations interactives à l'aide des légendes plutôt que de recevoir uniquement les légendes. Cette invention concerne également un dispositif permettant d'afficher des légendes. En outre, le mode de réalisation décrit dans cette invention permet d'exécuter facilement des opérations interactives car la fenêtre contient un grand nombre de commandes fonctionnelles évoluées.
PCT/CN2007/070136 2006-06-23 2007-06-20 Procédé et dispositif permettant d'afficher des légendes WO2008000179A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2006100904073A CN101076089A (zh) 2006-06-23 2006-06-23 一种显示字幕的方法
CN200610090407.3 2006-06-23

Publications (1)

Publication Number Publication Date
WO2008000179A1 true WO2008000179A1 (fr) 2008-01-03

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CN (1) CN101076089A (fr)
WO (1) WO2008000179A1 (fr)

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CN102118581B (zh) * 2009-12-30 2015-04-29 新奥特（北京）视频技术有限公司 一种字幕播出系统的软件预监方法
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CN102739983B (zh) * 2011-04-11 2016-04-13 腾讯科技（深圳）有限公司 一种实现半透明效果的方法及系统
CN102347045A (zh) * 2011-05-20 2012-02-08 合一网络技术(北京)有限公司 一种用于嵌入式媒体播放器的同步显示、控制的系统和设备
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CN102510539A (zh) * 2011-12-02 2012-06-20 深圳市万兴软件有限公司 一种在播放的视频上显示内容的方法和系统
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