CN114598909B - Intelligent set top box and time axis display method of live program - Google Patents
Intelligent set top box and time axis display method of live program Download PDFInfo
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- 230000004044 response Effects 0.000 claims abstract description 24
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- 238000004364 calculation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
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Classifications
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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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
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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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
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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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
-
- 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
Abstract
The application provides an intelligent set top box and a time axis display method of a live program, which comprises the following steps: the first interface is used for connecting with the server through the network; a second interface for connecting with a display device; a controller configured to: receiving an adjustment instruction for adjusting the current program playing progress; in response to receiving the adjustment instruction, establishing a reference time axis for updating a program playing progress time axis; updating a third time of the program playing progress time axis according to the running time on the reference time axis; and when the distance between the code stream time and the corresponding time on the reference time axis is smaller than or equal to a preset value, updating the third time of the program playing progress time axis according to the code stream time. The intelligent set top box and the time axis display method of the live program are used for accurately displaying the third time on the time axis when the program is live.
Description
Technical Field
The application relates to the technical field of intelligent set top boxes, in particular to an intelligent set top box and a time axis display method of a live program.
Background
The set top box, also called a digital video conversion box, is a device for connecting a television with an external signal source; it can convert the compressed digital signal into television content and display it on a television set. The signals of the set top box can come from a cable, a satellite antenna, a broadband network and terrestrial broadcasting, such as an IPTV set top box, and the set top box is an intelligent set top box, and can perform broadcasting control of a live program based on RTSP (Real-time streaming protocol).
When the IPTV set top box plays the live program, a program playing progress time shaft is displayed below the video playing window, and the program playing progress time shaft generally comprises three times; wherein: the first time is used for displaying the current time, the second time is used for displaying the earliest time that the program played in the video window can be watched, the difference value between the first time and the second time is used for identifying the time period that the program played in the video window can be watched, and the third time is used for displaying the time corresponding to the current playing position of the program played in the video window; the first time and the second time are continuously updated along with the change of the system time of the set top box, and the third time is changed along with the change of the playing progress of the program or the control and adjustment of the playing position of the user through the set top box control device.
For example, when a user drags a program playing progress, presses an up page key or presses a page key through a set top box control device, the set top box responds to a drag command, and a third time on a time axis should be updated to a post-drag position; the set top box responds to the command of pressing the page up key, and the time shift playing progress reaches the leftmost end of the time axis; the set top box time shifts the play progress to the rightmost end of the timeline in response to pressing the page key. However, when the set top box responds to a specific command of dragging the program playing progress, pressing the page up key or pressing the page down key, the set top box needs to acquire the audio and video data code stream at the corresponding position from the server again, and analyzes the acquired audio and video data code stream to acquire the corresponding code stream time, so that the third time on the time axis is updated according to the code stream time. If the set top box cannot timely obtain the corresponding code stream time when responding to a specific command of dragging the program playing progress, pressing the page up key or pressing the page down key, the problem of inaccurate display such as untimely updating or jumping back and forth of the third time on the time axis can occur.
Disclosure of Invention
The application provides an intelligent set top box and a time axis display method of a live program, which are used for accurately displaying third time on a time axis in the program live process.
In a first aspect, the present application provides an intelligent set top box, including: the first interface is used for connecting with the server through a network to acquire audio and video data corresponding to the program;
a second interface, configured to connect to a display device, so as to play the program through the display device;
a controller configured to perform:
receiving an adjustment instruction for adjusting the current program playing progress;
in response to receiving the adjustment instruction, establishing a reference time axis for updating a program playing progress time axis;
updating a third time of the program playing progress time axis according to the running time on the reference time axis;
and when the distance between the code stream time and the corresponding time on the reference time axis is smaller than or equal to a preset value, updating the third time of the program playing progress time axis according to the code stream time.
In a second aspect, the present application provides a method for displaying a time axis of a live program, which is used for an intelligent set top box, and the method includes:
receiving an adjustment instruction for adjusting the current program playing progress;
in response to receiving the adjustment instruction, establishing a reference time axis for updating a program playing progress time axis;
updating a third time of the program playing progress time axis according to the running time on the reference time axis;
and when the distance between the code stream time and the corresponding time on the reference time axis is smaller than or equal to a preset value, updating the third time of the program playing progress time axis according to the code stream time.
According to the set top box and the time axis display method of the live program, when a user inputs an adjustment instruction for adjusting the current program playing progress through dragging the program playing progress, pressing an upper page key or pressing a page key and the like to the set top box through the set top box control device, the set top box establishes a corresponding reference time axis for updating the program playing progress time axis according to the received adjustment instruction, and performs display updating of third time on the program playing progress time axis according to running time on the reference time axis, so that the problems that the audio and video data code stream is obtained again in response to the operation instruction, the code stream time is obtained through analysis from the audio and video code stream to update the third time on the display program playing progress time axis, the third time on the display program playing progress time axis is not updated timely or jumps back and forth and the like are avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a view of a use scenario of a set-top box provided according to some embodiments;
fig. 2 is a schematic diagram of an interface for displaying a live program on a set-top box on a display device according to some embodiments;
FIG. 3 is a flowchart of a method for displaying a timeline of a live program according to some embodiments;
fig. 4 is a second flowchart of a method for displaying a time axis of a live program according to some embodiments;
fig. 5 is a display state diagram one of a play progress time axis of a set top box in response to an adjustment instruction according to some embodiments;
fig. 6 is a second display state diagram of a play progress timeline when a set top box responds to an adjustment instruction according to some embodiments;
fig. 7 is a flowchart III of a method for displaying a timeline of a live program provided in accordance with some embodiments;
fig. 8 is a third display state diagram of a play progress timeline when a set top box responds to an adjustment instruction according to some embodiments;
fig. 9 is a flowchart four of a method for displaying a timeline of a live program provided in accordance with some embodiments;
fig. 10 is a display state diagram four of a play progress timeline when a set top box responds to an adjustment instruction according to some embodiments.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
Fig. 1 is a use scenario diagram of a set-top box provided according to some embodiments. As shown in fig. 1, a user can operate the set-top box 100 through the set-top box control apparatus 101 and the display device 200 through the display device remote control apparatus 201. The set-top box control apparatus 101 and the display device remote control apparatus 201 may be a remote controller, and the communication between the remote controller and the set-top box 100 includes infrared protocol communication or bluetooth protocol communication, and other short-range communication modes, which are controlled by wireless or wired modes, and the communication between the remote controller and the display device 200 includes infrared protocol communication or bluetooth protocol communication, and other short-range communication modes, which are used for controlling the display device 200 by wireless or wired modes.
The set top box 100 and the display device 200 are also in data communication with a server 300, respectively. The set-top box 100 and the display device 200 may be allowed to make a communication connection through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 300 may provide various contents and interactions to the display device 200. The server 400 may be a cluster, or may be multiple clusters, and may include one or more types of servers.
In some embodiments of the present application, the set-top box 100 is an IPTV set-top box, which is an intelligent set-top box that integrates a wide-band cable network, internet, multimedia, communication, and other technologies. The set top box 100 includes a controller, a first interface, and a second interface; the set top box 100 is connected with a server through a first interface network to acquire a code stream comprising audio and video data corresponding to a program; the set-top box 100 is connected with the display device 200 through a second interface to play the program through the display device 200; the controller is used for controlling a decoder and the like in the set top box 100 to read and analyze a code stream and the like corresponding to a program so as to play the program on the display device.
Fig. 2 is a schematic diagram of an interface for displaying a live program on a display device according to some embodiments, and fig. 2 shows a playing state of a user of the set-top box 10:36:17. As shown in fig. 2, when the set top box 100 plays a live program, a display screen of the display device 200 includes a video playing window for displaying the live program, a playing progress time axis for displaying a playing progress is set below the video playing window, and the playing progress time axis includes a first time (10:36:17), a second time (08:36:17) and a third time (09:58:12); the first time is used for displaying the current time, namely displaying the latest time position where the user can watch the program; the second time is used for displaying the earliest time that the program played in the video window can be watched, namely displaying the earliest time position that the user can review; the third time is used for displaying the current playing position of the played program in the video window. In some embodiments of the present application, the difference between the first time and the second time is usually a fixed value, as shown in fig. 2, where the difference between the first time and the second time is two hours, and then the user can watch the program played by the set-top box in the first two hours of the current time (the first time) through operation.
When a user performs operations such as dragging the program playing progress, pressing an up page key or pressing a down page key through the set top box control device 101 to adjust the program playing progress, in some existing schemes, the set top box 100 receives an operation instruction of dragging the program playing progress, pressing the up page key or pressing the down page key, and according to the operation instruction of dragging the program playing progress, pressing the up page key or pressing the down page key, the set top box needs to request the server for audio and video data again, after the request is successful, the server issues a code stream including the audio and video data to the set top box 100, and the set top box 100 receives the code stream and analyzes the code stream to obtain a code stream time, so as to display and update a third time on a playing progress time axis according to the code stream time. If the set top box cannot obtain the corresponding code stream time in time, the problem of inaccurate display such as untimely update of the third time on the playing progress time axis or back and forth jumping will occur. In order to ensure that the set top box 100 can display the third time more accurately, the application provides a time axis display method of a live program, wherein the time axis display method of the live program is used for the set top box and is configured and executed by a controller of the set top box.
Fig. 3 is a flowchart of a method for displaying a time axis of a live program according to some embodiments. As shown in fig. 3, the method for displaying a time axis of a live program according to the embodiment of the present application includes:
s100: and receiving an adjustment instruction for adjusting the current program playing progress.
S200: and in response to receiving the adjustment instruction, establishing a reference time axis for updating the program playing progress time axis.
S300: and updating the third time of the program playing progress time axis according to the running time on the reference time axis.
S400: and when the distance between the code stream time and the corresponding time on the reference time axis is smaller than or equal to a preset value, updating the third time of the program playing progress time axis according to the code stream time.
In some embodiments of the present application, a user may control the set-top box control device 101 to press a left key, a right key, an upper page key, a lower page key, or the like, and may send an adjustment instruction for adjusting the current program playing progress to the set-top box 100, where the set-top box 100 receives the adjustment instruction and adjusts the current program playing progress according to the corresponding instruction, and updates the third time on the program playing progress timeline according to the received adjustment instruction.
In the embodiment of the present application, the set top box 100 establishes a reference time axis for updating the program playing progress time axis in response to the received adjustment instruction for adjusting the current program playing progress, and updates the third time on the program playing progress time axis according to the established reference time axis, so as to ensure that the third time on the program playing progress time axis can be updated and displayed timely and accurately when the adjustment instruction is received. Meanwhile, when the distance between the code stream time analyzed from the audio and video data stream requested to the server according to the adjustment instruction and the corresponding time on the reference time axis is smaller than or equal to a preset value, namely when the code stream time analyzed from the audio and video data stream requested to the server according to the adjustment instruction is close to the corresponding time on the reference time axis, the third time of the program playing progress time axis is updated according to the code stream time, so that the time source of the third time of the updated program playing progress time axis is switched to the code stream time in time, and the accuracy of third time display is ensured.
Fig. 4 is a flowchart two of a method for displaying a time axis of a live program according to some embodiments. As shown in fig. 4, the method for displaying a time axis of a live program according to the embodiment of the present application includes:
s110: and receiving an adjustment instruction for dragging and adjusting the playing progress of the current program.
S210: when an adjustment instruction for dragging and adjusting the playing progress of a current program is received, responding to the adjustment instruction, acquiring the current third time when the adjustment instruction is received, and establishing a reference time axis according to the current third time, wherein the reference time axis runs with the target time as a starting point; the reference time axis runs with the target time as a starting point, the target time is the current third time plus the dragging time length, the dragging time length during backward dragging is negative, and the dragging time length during forward dragging is positive.
In the embodiment of the present application, when the set top box 100 is broadcasting a program, if the user drags the program playing progress by manipulating the set top box control device 101, wherein dragging the program playing progress includes forward and backward, for example, the user presses a left and right movement key; the set-top box control device 101 sends an adjustment instruction for dragging and adjusting the current program playing progress to the set-top box 100, and the set-top box 100 receives the adjustment instruction for dragging and adjusting the current program playing progress. And responding to the adjustment instruction for dragging and adjusting the playing progress of the current program, the set top box acquires the current third time when receiving the adjustment instruction for dragging and adjusting the playing progress of the current program, establishes a reference time axis according to the current third time, updates the current third time on the playing progress time axis according to the running time on the reference time axis, and runs the playing progress time axis. In the embodiment of the present application, the user may drag the program playing progress in advance by manipulating the forward key or the backward key of the set-top box control device 101.
In some embodiments of the present application, the target time is a time corresponding to the current third time when the set top box responds to an adjustment instruction for adjusting the current program playing progress by dragging, and the target time can be obtained by calculating the current third time and a dragging time length, wherein the dragging time length during back dragging is negative, and the dragging time length during forward dragging is positive; or when the vehicle is in backward dragging, the vehicle is obtained through the calculation of the current third time-dragging duration, and when the vehicle is in forward dragging, the vehicle is obtained through the calculation of the current third time + dragging duration. In some embodiments, the duration of the dragging of the set-top box depends on the moving step length of the set-top box when the set-top box is dragged by the corresponding set key, the number of consecutive keys of the set-top box control device 101 operated by the user, and so on.
Fig. 5 is a display state diagram one of a play progress time axis when the set top box receives an adjustment command in response to an adjustment command, where fig. 5 shows an interface after the set top box 100 receives an adjustment command for forward dragging by 1 step (e.g., 1 minute) to jump from the play state shown in fig. 2, and a third time on the play progress time axis is switched from 09:58:12 to 09:59:12. When the set top box 100 receives the adjustment instruction for advancing for 1 minute, the set top box 100 obtains the third time 09:58:12 in the background, establishes a reference time axis (dashed arrow in fig. 5), runs with 09:59:12 (09:58:12+60 seconds) as a starting point, and reads the running time on the reference time axis, so as to update the third time on the playing progress time axis according to the running time on the reference time axis. In response to receiving the adjustment command for advancing for 1 minute, the set top box 100 directly reads the running time on the reference time axis to 09:59:12, and further directly updates the third time on the playing progress time axis to 09:59:12, so that when the adjustment command for advancing and dragging is executed, the third time on the playing progress time axis is not dependent on re-requesting the code stream including the audio and video data. Further, during the continuous playing of the program, since the time on the reference time axis will still go forward, the set top box 100 may further continue to read, so as to update the third time on the playing progress time axis according to the running time on the reference time axis.
Fig. 6 is a second display state diagram of a play progress time axis when the set top box receives an adjustment command in response to an adjustment command, and fig. 6 shows an interface after the set top box 100 receives the adjustment command of a back drag 1 step (e.g. 1 minute) to jump from the play state shown in fig. 2, where a third time on the play progress time axis is switched from 09:58:12 to 09:57:12. When the set top box 100 receives the adjustment instruction for advancing for 1 minute, the set top box 100 obtains the third time 09:58:12 in the background, establishes a reference time axis (dashed arrow in fig. 5), runs with the reference time axis 09:57:12 (09:58:12-60 seconds) as a starting point, and reads the running time on the reference time axis by the set top box 100 to update the third time on the playing progress time axis according to the running time on the reference time axis. In response to receiving the adjustment command for advancing for 1 minute, the set top box 100 directly reads the running time on the reference time axis to 09:57:12, and further directly updates the third time on the playing progress time axis to 09:57:12, so that when the adjustment command for advancing and dragging is executed, the third time on the playing progress time axis is not dependent on re-requesting the code stream including the audio and video data.
Therefore, according to the time axis display method of the live program, when the set top box 100 receives the forward dragging instruction, the third time on the playing progress time axis can be updated timely according to the established reference time axis, and the accuracy of the third time on the playing progress time axis is effectively guaranteed.
In some embodiments of the present application, the method for displaying a time axis of a live program provided by the present application further includes: analyzing an audio and video data code stream requested to a server based on the adjustment instruction, and obtaining code stream time;
comparing the code stream time with the difference value of the corresponding time on the reference time axis of the current moment;
if the absolute value of the difference value between the code stream time and the corresponding time on the reference time axis of the current moment is smaller than or equal to a first threshold value, displaying the current third time on the playing progress time axis by using the code stream time and operating the playing progress time axis;
if the absolute value of the difference value between the code stream time and the corresponding time on the reference time axis of the current time is larger than a first threshold value, continuing to use the running time on the reference time axis to display the current third time on the playing progress time axis and running the playing progress time axis.
In this embodiment, when the set top box 100 receives an audio and video data code stream requested to a server based on an adjustment instruction, the audio and video code stream is parsed to obtain code stream time, the code stream time is recorded as a still by comparing the difference between the code stream time and the running time on a reference time axis at the current moment, the running time on the reference time axis at the current moment is recorded as a vtime, and the size of the |still-vtime| is calculated; when the |stinme-vtime| is less than or equal to a first threshold value, reading the third time on the code stream time display playing progress time axis and running the line playing progress time axis according to the code stream time; when |stinme-vtime| > the first threshold, continuing to display a third time on the playback progress timeline using the run time on the reference timeline and running the playback progress timeline. Therefore, when the code stream time resolved by the set top box from the received audio and video data code stream approaches to the running time on the reference time axis, the third time on the playing progress time axis is displayed by using the code stream time, and the third time is displayed by no longer using the time on the reference time axis. The specific value of the first threshold may be selected as desired.
Fig. 7 is a flowchart III of a method for displaying a timeline of a live program according to some embodiments. As shown in fig. 7, the method for displaying a time axis of a live program according to the embodiment of the present application includes:
s120: and receiving an adjustment instruction for time-shifting the playing progress of the current program to the leftmost end of the playing progress time axis.
S220: when an adjusting instruction for time shifting to adjust the playing progress of the current program to the leftmost end of a playing progress time axis is received, responding to the adjusting instruction, acquiring current second time when the adjusting instruction is received, and establishing a reference time axis according to the current second time; the reference time axis runs with the current second time as a starting point, and the current second time is the second time currently displayed on the program playing progress time axis.
In the embodiment of the present application, when the set top box 100 is broadcasting a program, if a user presses an upper page key by manipulating the set top box control device 101, the set top box control device 101 sends an adjustment instruction for adjusting the current program playing progress based on the time shift of the upper page key to the set top box, and the set top box 100 receives an adjustment instruction for adjusting the current program playing progress based on the time shift of the upper page key. In response to the adjustment instruction for adjusting the current program playing progress based on the time shift of the upper page key, the set top box 100 obtains a second time when the adjustment instruction for adjusting the current program playing progress based on the time shift of the upper page key is received, establishes a reference time axis according to the second time, adjusts the playing position on the program playing progress time axis to the leftmost end, updates the current third time on the playing progress time axis according to the running time on the reference time axis, and runs the playing progress time axis. Of course, in the set top box provided by the embodiment of the present application, the time shift adjustment of the playing progress time axis to the leftmost end is not limited to controlling the upper page key of the set top box control device 101.
Fig. 8 is a third display state diagram of a play progress time axis when the set top box receives an adjustment instruction for adjusting the play progress of a current program based on time shift of an upper page key according to some embodiments, fig. 8 shows an interface after the set top box 100 jumps from the play state shown in fig. 2, the time shift of the play progress time axis is adjusted to the leftmost end, and a third time on the play progress time axis is switched from 09:58:12 to 08:36:17. When the set top box 100 receives an adjustment instruction for adjusting the current program playing progress based on the time shift of the upper page key, the set top box 100 obtains the second time 08:36:17 in the background, establishes a reference time axis (dashed arrow in fig. 7), runs with the reference time axis 08:36:17 as a starting point, and reads the running time on the reference time axis by the set top box 100 to update the third time on the playing progress time axis according to the running time on the reference time axis. In response to receiving the adjustment instruction for adjusting the current program playing progress based on the time shift of the upper page key, the set top box 100 directly reads the running time on the reference time axis to 08:36:17, and further, the playing position on the program playing progress time axis is adjusted to the leftmost end, and the third time on the playing progress time axis is directly updated to 08:36:17, so that when the adjustment instruction for adjusting the current program playing progress based on the time shift of the upper page key is executed, the third time on the playing progress time axis is not dependent on re-requesting the code stream including the audio and video data. Further, during the continuous playing of the program, since the time on the reference time axis will still go forward, the set top box 100 may further continue to read, so as to update the third time on the playing progress time axis according to the running time on the reference time axis.
Therefore, the set top box provided by the embodiment of the application can timely adjust the program playing progress of the playing progress time axis to the leftmost end and accurately display the third time when receiving the adjusting instruction of the leftmost end of the playing progress time axis based on the established reference time axis.
In some embodiments of the present application, the method for displaying a time axis of a live program provided by the present application further includes: analyzing an audio and video data code stream requested to a server based on the adjustment instruction, and obtaining code stream time;
comparing the code stream time with the running time difference value on the reference time axis of the current moment;
if the absolute value of the difference value between the code stream time and the running time on the virtual axis at the current moment is smaller than or equal to a second threshold value, displaying a third time on the playing progress time axis by using the code stream time and running the playing progress time axis;
and if the absolute value of the difference value between the code stream time and the running time on the virtual shaft at the current moment is larger than a second threshold value, continuing to display the third time on the playing progress time shaft by using the running time on the virtual shaft and running the playing progress time shaft.
In this embodiment, when the set top box 100 receives an audio and video data code stream requested from a server and adjusting the current program playing progress to the leftmost end of the playing progress time axis based on time shift, the audio and video code stream is analyzed to obtain code stream time, the code stream time is recorded as a still, the running time on the reference time axis at the current time is recorded as a vtime by comparing the difference between the code stream time and the running time on the reference time axis at the current time, and the size of |still-vtime|is calculated; when the |stinme-vtime| is less than or equal to a second threshold value, reading the third time on the code stream time display playing progress time axis and running the line playing progress time axis according to the code stream time; and when the |stinme-vtime| > the second threshold value, continuing to display the third time on the playing progress time axis by using the running time on the reference time axis and running the playing progress time axis. Therefore, when the code stream time resolved by the set top box from the received audio and video data code stream approaches to the running time on the reference time axis, the third time on the playing progress time axis is displayed by using the code stream time, and the third time is displayed by no longer using the time on the reference time axis. The specific value of the second threshold may be selected as desired, for example, the second threshold is equal to the first threshold.
Fig. 9 is a flowchart III of a method for displaying a timeline of a live program according to some embodiments. As shown in fig. 9, a method for displaying a time axis of a live program according to an embodiment of the present application includes:
s130: and receiving an adjustment instruction for time-shifting the playing progress of the current program to the rightmost end of the playing progress time axis.
S230: when an adjustment instruction for time shifting adjustment of the playing progress of a current program to the rightmost end of a playing progress time shaft is received, responding to the adjustment instruction, acquiring the current first time when the adjustment instruction is received, and establishing a reference time shaft for updating the playing progress time shaft according to the current first time; the reference time axis runs with the current first time as a starting point, and the current first time is the first time currently displayed on the program playing progress time axis.
In the embodiment of the present application, when the set top box 100 is broadcasting a program, if a user presses a page key by manipulating the set top box control device 101, the set top box control device 101 sends an adjustment instruction for adjusting the current program playing progress based on the time shift of the page key to the set top box, and the set top box 100 receives an adjustment instruction for adjusting the current program playing progress based on the time shift of the page key. In response to the adjustment instruction for adjusting the current program playing progress based on the time shift of the lower page key, the set top box 100 obtains a first time when the adjustment instruction for adjusting the current program playing progress based on the time shift of the lower page key is received, establishes a reference time axis according to the first time, adjusts the playing position on the program playing progress time axis to the rightmost end, updates a current third time on the playing progress time axis according to the running time on the reference time axis, and runs the playing progress time axis. Of course, in the set top box provided by the embodiment of the present application, the time shift adjustment of the playing progress time axis to the rightmost end is not limited to controlling the lower page key of the set top box control device 101.
Fig. 10 is a display state diagram of a play progress time axis when a set top box receives an adjustment instruction to adjust the play progress of a current program based on a time shift of a lower page key according to some embodiments, fig. 10 shows an interface after the set top box 100 jumps from the play state shown in fig. 2, the time shift of the play progress time axis is adjusted to the rightmost end, and a third time on the play progress time axis is switched from 09:58:12 to 10:36:17. When the set top box 100 receives an adjustment instruction for adjusting the current program playing progress based on the time shift of the upper page key, the set top box 100 obtains the first time of 10:36:17 in the background, establishes a reference time axis (dashed arrow in fig. 9), runs with the reference time axis of 10:36:17 as a starting point, and reads the running time on the reference time axis by the set top box 100 to update the third time on the playing progress time axis according to the running time on the reference time axis. In response to receiving an adjustment instruction for adjusting the current program playing progress based on the time shift of the lower page key, the set top box 100 directly reads the running time on the reference time axis to 10:36:17, and further, the playing position on the program playing progress time axis is adjusted to the rightmost end, and the third time on the playing progress time axis is directly updated to 10:36:17, so that when the adjustment instruction for adjusting the current program playing progress based on the time shift of the upper page key is executed, the third time on the playing progress time axis is not dependent on re-requesting the code stream including the audio/video data. Further, during the continuous playing of the program, since the time on the reference time axis will still go forward, the set top box 100 may further continue to read, so as to update the third time on the playing progress time axis according to the running time on the reference time axis.
Therefore, the set top box provided by the embodiment of the application can timely adjust the program playing progress of the playing progress time axis to the rightmost end and accurately display the third time when receiving the adjustment instruction of the rightmost end of the playing progress time axis based on the established reference time axis.
In some embodiments of the present application, the method for displaying a time axis of a live program provided by the present application further includes: analyzing an audio and video data code stream requested to a server based on the adjustment instruction, and obtaining code stream time;
comparing the code stream time with the running time difference value on the reference time axis of the current moment;
if the absolute value of the difference value between the code stream time and the running time on the virtual axis at the current moment is smaller than or equal to a third threshold value, displaying the third time on the playing progress time axis by using the code stream time and running the playing progress time axis;
if the absolute value of the difference between the code stream time and the running time on the virtual axis at the current moment is greater than a third threshold value, continuing to display the third time on the playing progress time axis by using the running time on the virtual axis and running the playing progress time axis
In this embodiment, when the set top box 100 receives an audio/video data code stream requested from a server based on an adjustment instruction for time-shifting the current program playing progress to the rightmost end of the playing progress time axis, the audio/video code stream is parsed to obtain a code stream time, the code stream time is recorded as a still by comparing the difference between the code stream time and the running time on the reference time axis at the current time, the running time on the reference time axis at the current time is recorded as a vtime, and the size of |still-vtime|iscalculated; when the |stinme-vtime| is less than or equal to a third threshold value, reading the third time on the code stream time display playing progress time axis and running the line playing progress time axis according to the code stream time; and when the |stinme-vtime| > the third threshold value, continuing to display the third time on the playing progress time axis by using the running time on the reference time axis and running the playing progress time axis. Therefore, when the code stream time resolved by the set top box from the received audio and video data code stream approaches to the running time on the reference time axis, the third time on the playing progress time axis is displayed by using the code stream time, and the third time is displayed by no longer using the time on the reference time axis. The specific value of the third threshold may be selected as desired, for example, the third threshold is equal to the first threshold or the second threshold.
In an embodiment of the present application, the first threshold value, the second threshold value, and the third threshold value may be selected to be the same value. Or after executing different progress adjustment, analyzing the audio and video data code stream requested to the server based on the adjustment instruction, obtaining code stream time, and comparing the code stream time with the difference of the running time on the reference time axis at the current moment; if the difference between the code stream time and the running time on the reference time axis of the current moment is smaller than the threshold value, displaying the third time on the playing progress time axis by using the code stream time and running the playing progress time axis; if the difference between the code stream time and the running time on the reference time axis of the current moment is greater than or equal to the threshold value, continuing to display the third time on the playing progress time axis by using the running time on the virtual axis and running the playing progress time axis.
Further, in some embodiments of the present application, when the time of the code stream parsed from the received audio and video data code stream by the set top box approaches to the running time on the reference time axis, that is, the time on the reference time axis is not used any more to display the third time, the reference time axis is cleared, so that the set top box is convenient to wait for receiving a new adjustment instruction and reestablish the corresponding reference time axis.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (9)
1. An intelligent set top box, comprising:
the first interface is used for connecting with the server through a network to acquire audio and video data corresponding to the program;
a second interface, configured to connect to a display device, so as to play the program through the display device;
a controller configured to perform:
receiving an adjustment instruction for adjusting the current program playing progress;
in response to receiving the adjustment instruction, establishing a reference time axis for updating a program playing progress time axis;
updating a third time of the program playing progress time axis according to the running time on the reference time axis;
the code stream time analyzed from the audio and video data stream requested by the server based on the adjustment instruction, and when the absolute value of the difference value between the code stream time and the corresponding time on the reference time axis is smaller than or equal to a preset value, the third time of the program playing progress time axis is updated according to the code stream time; if the absolute value of the difference between the code stream time and the corresponding time on the reference time axis is larger than a preset value, continuously updating the third time of the program playing progress time axis according to the running time on the reference time axis.
2. The intelligent set-top box of claim 1, wherein in response to receiving the adjustment instruction, establishing a reference timeline for updating a program play progress timeline comprises:
when an adjustment instruction for dragging and adjusting the playing progress of a current program is received, responding to the adjustment instruction, acquiring a current third time when the adjustment instruction is received, and establishing a reference time axis for updating the playing progress time axis of the program according to the current third time; the reference time axis runs with the target time as a starting point, the target time is the current third time plus the dragging time length, the dragging time length during backward dragging is negative, and the dragging time length during forward dragging is positive.
3. The intelligent set-top box of claim 1, wherein in response to receiving the adjustment instruction, establishing a reference timeline for updating a program play progress timeline comprises:
when an adjustment instruction for time shifting adjustment of the playing progress of a current program to the leftmost end of a playing progress time axis is received, responding to the adjustment instruction, acquiring current second time when the adjustment instruction is received, and establishing a reference time axis for updating the playing progress time axis of the program according to the current second time; the reference time axis runs with the current second time as a starting point, and the current second time is the second time currently displayed on the program playing progress time axis.
4. The intelligent set-top box of claim 1, wherein in response to receiving the adjustment instruction, establishing a reference timeline for updating a program play progress timeline comprises:
when an adjustment instruction for time shifting adjustment of the playing progress of a current program to the rightmost end of a playing progress time axis is received, responding to the adjustment instruction, acquiring the current first time when the adjustment instruction is received, and establishing a reference time axis for updating the playing progress time axis of the program according to the current first time; the reference time axis runs with the current first time as a starting point, and the current first time is the first time currently displayed on the program playing progress time axis.
5. The intelligent set-top box of claim 1, wherein the controller is further configured to perform:
and when the third time of the program playing progress time axis is updated according to the code stream time, clearing the reference time axis.
6. A method for displaying a time axis of a live program, the method being used for an intelligent set top box, the method comprising:
receiving an adjustment instruction for adjusting the current program playing progress;
in response to receiving the adjustment instruction, establishing a reference time axis for updating a program playing progress time axis;
updating a third time of the program playing progress time axis according to the running time on the reference time axis;
the code stream time analyzed from the audio and video data stream requested by the server based on the adjustment instruction, and when the absolute value of the difference value between the code stream time and the corresponding time on the reference time axis is smaller than or equal to a preset value, the third time of the program playing progress time axis is updated according to the code stream time; if the absolute value of the difference between the code stream time and the corresponding time on the reference time axis is larger than a preset value, continuously updating the third time of the program playing progress time axis according to the running time on the reference time axis.
7. The method of claim 6, wherein establishing a reference timeline for updating a program playback progress timeline in response to receiving the adjustment instruction comprises:
when an adjustment instruction for dragging and adjusting the playing progress of a current program is received, responding to the adjustment instruction, acquiring a current third time when the adjustment instruction is received, and establishing a reference time axis for updating the playing progress time axis of the program according to the current third time; the reference time axis runs with the target time as a starting point, the target time is the current third time plus the dragging time length, the dragging time length during backward dragging is negative, and the dragging time length during forward dragging is positive.
8. The method of claim 6, wherein establishing a reference timeline for updating a program playback progress timeline in response to receiving the adjustment instruction comprises:
when an adjustment instruction for time shifting adjustment of the playing progress of a current program to the leftmost end of a playing progress time axis is received, responding to the adjustment instruction, acquiring current second time when the adjustment instruction is received, and establishing a reference time axis for updating the playing progress time axis of the program according to the current second time; the reference time axis runs with the current second time as a starting point, and the current second time is the second time currently displayed on the program playing progress time axis.
9. The method of claim 6, wherein establishing a reference timeline for updating a program playback progress timeline in response to receiving the adjustment instruction comprises:
when an adjustment instruction for time shifting adjustment of the playing progress of a current program to the rightmost end of a playing progress time axis is received, responding to the adjustment instruction, acquiring the current first time when the adjustment instruction is received, and establishing a reference time axis for updating the playing progress time axis of the program according to the current first time; the reference time axis runs with the current first time as a starting point, and the current first time is the first time currently displayed on the program playing progress time axis.
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