CN109688461B - Video playing method and device - Google Patents
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- CN109688461B CN109688461B CN201910041542.6A CN201910041542A CN109688461B CN 109688461 B CN109688461 B CN 109688461B CN 201910041542 A CN201910041542 A CN 201910041542A CN 109688461 B CN109688461 B CN 109688461B
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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
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
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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 or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440281—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the temporal resolution, e.g. by frame skipping
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64746—Control signals issued by the network directed to the server or the client
- H04N21/64761—Control signals issued by the network directed to the server or the client directed to the server
- H04N21/64769—Control signals issued by the network directed to the server or the client directed to the server for rate control
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- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The application discloses a video playing method and device, and belongs to the technical field of electronics. The method comprises the following steps: acquiring a video frame rate of a video to be played; determining a target refresh rate of the video playing equipment according to the video frame rate, wherein the target refresh rate is an integral multiple of the video frame rate; setting the refresh rate of the video playing equipment as a target refresh rate; and playing the video to be played according to the target refresh rate. The method and the device solve the problem that the video playing device is poor in flexibility in video playing. The application is used for playing videos.
Description
Technical Field
The present application relates to the field of electronic technologies, and in particular, to a video playing method and apparatus.
Background
With the development of electronic technology, the requirements for fluency of video playing are higher and higher.
In the related art, a video playing device is provided with a fixed refresh rate (also referred to as a system frame rate), and the video playing device plays a video according to the refresh rate. The refresh rate of a video playback device refers to the number of times the video playback device refreshes an image per second. The refresh rate of the video playing device is often greater than or equal to the video frame rate of the video to be played. For example, assuming that the video frame rate of the video to be played is 24 hz, the video playing device needs to display 24 different images each second when playing the video to be played, and the display time of each image is 1/24 seconds. When the refresh rate of the video playback device is 72 hz, the video playback device refreshes an image every 1/72 seconds, and can display the next frame of image after every three refreshes.
When the video frame rate of the video to be played is matched with the refresh rate of the video playing device, that is, the refresh rate of the video playing device is an integral multiple of the video frame rate of the video to be played, the video playing device can smoothly play the video to be played. However, since video frame rates of different videos may be different, when the video frame rate of a certain video is not matched with the refresh rate of the video playing device, the fluency of the video playing device playing the video is low. Therefore, the video playing device in the related art has poor flexibility in playing videos.
Disclosure of Invention
The application provides a video playing method and device, which can solve the problem of poor flexibility of playing videos by video playing equipment. The technical scheme is as follows:
in one aspect, a video playing method is provided, where the method includes:
acquiring a video frame rate of a video to be played;
determining a target refresh rate of a video playing device according to the video frame rate, wherein the target refresh rate is an integral multiple of the video frame rate;
setting the refresh rate of the video playing device as the target refresh rate;
and playing the video to be played according to the target refresh rate.
Optionally, the setting the refresh rate of the video playback device to the target refresh rate includes:
acquiring a target BSP parameter value corresponding to the target refresh rate based on the corresponding relation between the refresh rate of the video playing device and the BSP parameter value of the board-level support packet;
and updating the BSP parameter value of the video playing equipment to the target BSP parameter value.
Optionally, the determining a target refresh rate of a video playing device according to the video frame rate includes:
according to the video frame rate, acquiring n reference refresh rates from a specified refresh rate range, wherein the reference refresh rates are integral multiples of the video frame rate, the specified refresh rate range is 60 Hz to 90 Hz, and n is a positive integer;
when n is 1, determining the reference refresh rate as the target refresh rate;
when n >1, determining a maximum reference refresh rate of the n reference refresh rates as the target refresh rate.
Optionally, determining a target refresh rate of the video playing device according to the video frame rate includes:
determining the target refresh rate based on a target video frame rate when the video frame rate is within a target video frame rate range, the target video frame rate range being 20 Hz to 90 Hz.
Optionally, before the determining the target refresh rate of the video playing device according to the video frame rate, the method further includes:
displaying a refresh rate intelligent adjustment option;
determining a target refresh rate of a video playing device according to the video frame rate, including:
and after a triggering instruction aiming at the intelligent refresh rate adjusting option is received, determining the target refresh rate according to the video frame rate.
In another aspect, a video playback apparatus is provided, the video playback apparatus including:
the acquisition module is used for acquiring the video frame rate of the video to be played;
the determining module is used for determining a target refresh rate of video playing equipment according to the video frame rate, wherein the target refresh rate is an integral multiple of the video frame rate;
the setting module is used for setting the refresh rate of the video playing equipment as the target refresh rate;
and the playing module is used for playing the video to be played according to the target refresh rate.
Optionally, the setting module is configured to:
acquiring a target BSP parameter value corresponding to the target refresh rate based on the corresponding relation between the refresh rate of the video playing device and the BSP parameter value of the board-level support packet;
and updating the BSP parameter value of the video playing equipment to the target BSP parameter value.
Optionally, the determining module is configured to:
according to the video frame rate, acquiring n reference refresh rates from a specified refresh rate range, wherein the reference refresh rates are integral multiples of the video frame rate, the specified refresh rate range is 60 Hz to 90 Hz, and n is a positive integer;
when n is 1, determining the reference refresh rate as the target refresh rate;
when n >1, determining a maximum reference refresh rate of the n reference refresh rates as the target refresh rate.
In still another aspect, a video playback device is provided, including: a memory and a processing component;
the memory for storing a computer program;
the processing component is used for executing the computer program stored on the memory to realize the video playing method.
In yet another aspect, a readable storage medium is provided, having instructions stored therein,
the readable storage medium, when run on the processing component, causes the processing component to perform the video playback method described above.
The beneficial effect that technical scheme that this application provided brought includes at least:
in the video playing method, a video playing device can determine a target refresh rate according to a video frame rate of a video to be played, and play the video to be played according to the target refresh rate, wherein the target refresh rate is an integral multiple of the video frame rate. Even if the video frame rate of the video to be played does not match the refresh rate of the video playing device, the video playing device can determine the target refresh rate matching the video frame rate and smoothly play the video to be played according to the target refresh rate. Therefore, the video playing device can be adapted to the videos to be played at different video frame rates, that is, the videos to be played at different video frame rates can be smoothly played, and the flexibility of playing the videos by the video playing device is high.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a timing diagram of refreshing an image and displaying each frame of image in a video by a video playback device according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a video playing method provided in an embodiment of the present application;
fig. 3 is a flowchart of another video playing method provided in an embodiment of the present application;
FIG. 4 is a schematic diagram of a display interface provided by an embodiment of the present application;
FIG. 5 is a schematic diagram of another display interface provided by embodiments of the present application;
fig. 6 is a schematic structural diagram of a video playing apparatus according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of another video playback device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a video playing device according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
With the development of electronic technology, the requirements for fluency of video playing are higher and higher. It should be noted that, if the video to be played is to be played smoothly, the time duration of displaying each frame of image in the video to be played should be equal. Referring to fig. 1, assuming that a first frame image (e.g., image 1) in a video to be played needs to be displayed within a time period t 1-t 4, and a second frame image (e.g., image 2) needs to be displayed within a time period t 4-t 7, the video playing apparatus needs to replace the displayed images at time t1, time t4, and time t 7. If the refresh rate of the video playing device is 3 times (integral multiple) of the video frame rate of the video to be played, that is, the refresh rate of the video playing device is matched with the video frame rate of the video to be played, the video playing device may refresh the image at time t1, time t2, time t3, time t4, time t5, time t6, and time t 7. Because the time t4 and the time t7 at which the video playing device needs to replace the displayed images are exactly the time of refreshing the images, each frame of image in the video to be played can be normally displayed in the corresponding display time period, that is, the video playing device can smoothly play the video to be played. If the refresh rate of the video playing device is 1.5 times (non-integral multiple) of the video frame rate of the video to be played, that is, the refresh rate of the video playing device is not matched with the video frame rate of the video to be played, the video playing device refreshes the image at time t1, time t3, time t5, and time t 7. The video playing device can convert the displayed image from the image 1 to the image 2 only after the image is refreshed at the time t5, and can display the next frame image of the image 2 after the image is refreshed at the time t7, so that the time period for displaying the image 1 is t1 to t5, the time period for displaying the image 2 is t5 to t7, the display duration of the image 1 is longer than the display duration of the image 2, and each frame image in the video to be played is not normally displayed in the time period corresponding to the frame image in the video to be played, that is, the video playing device cannot smoothly play the video to be played.
When the video to be played is a Virtual Reality (VR) video or an Augmented Reality (AR) video, the requirement on the playing fluency of the video to be played is higher, and the following embodiment of the application takes the VR video as an example for explanation. At present, video frame rates of various VR videos are uneven, for example, there are VR videos with video frame rates of 24 hz, 25 hz, 30 hz, and 60 hz. Video playback devices typically play video at a fixed refresh rate (e.g., 72 hz) that does not match all video frame rates. If the video frame rate of a certain video does not match the refresh rate of the video playing device, the fluency is low when the video playing device plays the video, for example, a user may have a feeling of picture skipping or picture tearing.
The embodiment of the application provides a video playing method, even if a video frame rate of a video to be played is not matched with an initial refresh rate of a video playing device, the video playing device can determine a target refresh rate matched with the video frame rate of the video to be played and smoothly play the video to be played according to the target refresh rate, so that the problems in the related art are solved.
Fig. 2 is a flowchart of a video playing method provided in an embodiment of the present application, and is used for a video playing device. As shown in fig. 2, the video playing method may include:
And step 203, setting the refresh rate of the video playing device as a target refresh rate.
And step 204, playing the video to be played according to the target refresh rate.
To sum up, in the video playing method provided in the embodiment of the present application, the video playing device may determine the target refresh rate according to the video frame rate of the video to be played, and play the video to be played according to the target refresh rate, where the target refresh rate is an integer multiple of the video frame rate. Even if the video frame rate of the video to be played does not match the refresh rate of the video playing device, the video playing device can determine the target refresh rate matching the video frame rate and smoothly play the video to be played according to the target refresh rate. Therefore, the video playing device can be adapted to the videos to be played at different video frame rates, that is, the videos to be played at different video frame rates can be smoothly played, and the flexibility of playing the videos by the video playing device is high.
Fig. 3 is a flowchart of a video playing method provided in an embodiment of the present application, and is used for a video playing device. As shown in fig. 3, the video playing method may include:
Optionally, the video frame rate of the video to be played includes one of 24 hz, 25 hz, 30 hz, and 60 hz, which is not limited in this embodiment of the application.
For example, the video playing device may obtain the video frame rate of the video to be played after receiving the playing instruction for the video to be played. Optionally, the video playing device may further obtain other video information of the video to be played, such as video duration, video format, video bitrate, and the like. Before playing a video, the video playing device displays a playing option of the video, and when the video playing device detects a trigger operation (such as a click operation on the playing option) for a certain playing option, the video playing device may determine a video corresponding to the playing option as a video to be played, and determine that a playing instruction for the video to be played is received, thereby obtaining a video frame rate of the video to be played.
It should be noted that, generally, the video frame rate of the video to be played is determined by a video playing device or other devices, and an error often exists in a calculation result, which may further cause that the initial frame rate of the video to be played, which is obtained by the video playing device, is a non-integer, and at this time, the frame rate obtained by rounding the initial frame rate may be determined as the video frame rate of the video to be played. For example, when the initial frame rate obtained by the device to be played is 29.77 hz, the initial frame rate may be rounded to obtain a frame rate of 30 hz, and the video frame rate of the video to be played is determined to be 30 hz.
The target refresh rate is an integral multiple of the video frame rate, so that the video playing device can smoothly play the video to be played according to the target refresh rate.
Optionally, after step 301, the video playing apparatus may first determine whether the video frame rate of the video to be played is within the target video frame rate range, and then execute step 302 when the video frame rate is within the target video frame rate range. The target video frame rate ranges from 20 Hz to 90 Hz, and the range includes 20 Hz and 90 Hz. When the video frame rate of the video to be played is less than 20 Hz, each frame of image in the video to be played may have a large time delay; when the video frame rate of the video to be played is greater than 90 hz, the performance of the video playing device may not be sufficient to support the playing of the video to be played, so that the video frame rate of the video to be played can be within the range of the target video frame rate.
Optionally, the video playing device may set an initial refresh rate, and if the video frame rate of the video to be played is not within the range of the target video frame rate, the video playing device may play the video according to the initial refresh rate, or the video playing device may also prohibit playing of the video to be played, which is not limited in this embodiment of the present application. For example, the initial refresh rate may be 72 hz, or the initial refresh rate may also be other values, for example, the initial refresh rate may be within the range of the target frame rate, which is not limited in this embodiment of the application.
Optionally, the implementation procedure of step 302 is as follows: the video playing device may obtain n reference refresh rates from a specified refresh rate range according to the video frame rate, where the reference refresh rate is an integral multiple of the video frame rate, the specified refresh rate range is 60 hz to 90 hz, n is a positive integer, and the specified refresh rate range may include 60 hz and 90 hz. When n is 1, the video playback device may determine the reference refresh rate as the target refresh rate. When n >1, the video playback device may determine a maximum reference refresh rate of the n reference refresh rates as a target refresh rate. Optionally, if there is no reference refresh rate corresponding to the video frame rate within the specified refresh rate range (for example, when the video frame rate is 50 hz), the video playing device may play the video to be played according to the initial refresh rate.
Optionally, the video playback device may be a VR video playback device. Since the VR video playing device is usually worn on the head of a user, for a frame of image in the VR video, the VR video playing device needs to highlight different areas in the frame of image according to the head rotation direction of the user, so the VR video playing device needs to play the VR video according to a higher refresh rate, and the refresh rate may be greater than or equal to 60 hz. Due to the current performance limitations of VR video playback devices, the refresh rate of VR video playback devices is typically less than or equal to 90 hz. In addition, on the premise that the refresh rate of the VR video playing device is an integral multiple of the video frame rate, the larger the refresh rate is, the more sensitively the image corresponding to the viewing angle can be displayed for the user, and the higher the playing fluency of the VR video can be, so that the maximum reference refresh rate among the n reference refresh rates can be determined as the target refresh rate when n > 1.
For example, if the video frame rate of the video to be played is 40 hz, the video playing device may determine that there is only one reference refresh rate within the specified refresh rate range, where the reference refresh rate is 80 hz, and may further determine that the target refresh rate is 80 hz. If the video frame rate of the video to be played is 30 hz, the video playing device may determine that there are two reference refresh rates (60 hz and 90 hz, respectively) within the specified refresh rate range, and may further determine that the target refresh rate is 90 hz.
Alternatively, the video playback device may obtain the reference refresh rate within the specified refresh rate range in a variety of ways. For example, when the value of the video frame rate is within the specified refresh rate range, the video playing device may directly determine the value of the video frame rate as the target refresh rate; when the video frame rate is less than 60 hz, the video playing device may sequentially determine, in order from small to large, portions of the integer multiple of the video frame rate that are within the specified refresh rate range until the integer multiple of the video frame rate is greater than 90 hz, and then determine the reference refresh rate. Or, the video playing device may determine whether each refresh rate within the specified refresh rate range is an integer multiple of the video frame rate, and further determine the reference refresh rate, which is not limited in the embodiment of the present application.
The video playing device may set a refresh rate of the video playing device by changing a parameter of a Board Support Package (BSP) therein. The BSP parameters include: the number of data channels lane _ num of the video playback device, the Display area width of the video playback device, the Display area height of the video playback device, the bus width of the video playback device, bus _ width, Display Stream Compression (DSC) parameters, the transmission rate mipispeed of the data channels of the video playback device, the horizontal synchronization signal hsync, the front shoulder hfp of the horizontal synchronization signal, the back shoulder hbp of the horizontal synchronization signal, the frame synchronization signal vsync, the front shoulder vfp of the frame synchronization signal, and the back shoulder vbp of the frame synchronization signal. The BSP parameter may satisfy the following relationship with the refresh rate F of the video playback device:
wherein, DSC represents DSC parameters, and lane _ num, width, height, bus _ width, and DSC parameters are fixed values for the same video playback device, so the refresh rate of the video playback device can be set only by changing the values of mipispeeed, hsync, hfp, hbp, vsync, vfp, and vbp in BSP parameters.
For example, before the video playing device leaves the factory, a corresponding relationship between each refresh rate and a BSP parameter value in a specified refresh rate range may be obtained by debugging in advance, and the corresponding relationship may be stored in the video playing device. The specified refresh rate ranges from 60 hz to 90 hz, i.e. 31 sets of refresh rates are obtained corresponding to the BSP parameter values. Alternatively, the 31-group correspondence may be stored in the form of an index table. After determining the target refresh rate in step 302, the video playing device may obtain the target BSP parameter value corresponding to the target refresh rate based on the corresponding relationship between the refresh rate of the video playing device and the BSP parameter value, for example, by querying the index table. The BSP parameter value of the video playback device may then be updated to the target BSP parameter value to update the refresh rate of the video playback device to the target refresh rate.
And step 304, playing the video to be played according to the target refresh rate.
After the video playing device sets the refresh rate to the target refresh rate, the video playing device can play the video to be played according to the target refresh rate. Because the target refresh rate is an integral multiple of the video frame rate of the video to be played, in the playing process, the time when the video playing device should change the displayed image is the same as the time when the image is refreshed, the display duration of each frame of image in the video to be played is the same, and the video playing device can smoothly play the video to be played.
Optionally, before step 302, the video playback device may also display a refresh rate smart adjustment option. It should be noted that the step of displaying the refresh rate smart adjustment option may be performed before step 301, or may be performed after step 301, which is not limited in this embodiment of the application. The user may perform a trigger operation for the refresh rate smart adjustment option, at which point the video playback device may determine that a trigger instruction for the refresh rate smart adjustment option is received, and perform step 302.
For example, the video playing device may display the refresh rate smart adjustment option when it is not determined that a video is to be played, for example, a user may trigger the video playing device to display a setting interface shown in fig. 4 to perform different settings on the video playing device, where the setting interface includes the refresh rate smart adjustment option, and optionally, the setting interface may further include other options. Referring to fig. 4, an adjustment bar a may be displayed after the refresh rate smart adjustment option, and a slider B may be displayed on the adjustment bar. The user may click or slide the slider B to change the position of the slider B on the adjustment bar a. When the user clicks or slides the slider B to be located at the right end of the adjustment bar a, the video playing device may determine that the trigger instruction for the intelligent adjustment option of the refresh rate is received, and then the video playing device may execute steps 302 to 304 after determining the video to be played, that is, obtain the target refresh rate corresponding to the video frame rate of the video to be played, and play the video to be played according to the target refresh rate. When the user clicks or slides the slider B to enable the slider B to be positioned at the left end of the adjusting bar A, the video playing device can play the video to be played according to the initial refresh rate after determining the video to be played.
As another example, after determining that the video is to be played (e.g., after receiving a play instruction for the video to be played), the video playing device may pop up the setting interface shown in fig. 5 to indicate whether the user triggers the video playing device to perform step 302. Referring to fig. 5, a prompt message "do video play at a refresh rate that matches the video? "and may display the options" yes "and" no, "which is the refresh rate smart adjustment option. When the user clicks the option "yes", the video playing device may determine that a trigger instruction for the intelligent refresh rate adjustment option is received, and cause the video playing device to execute steps 302 to 304, that is, determine a target refresh rate corresponding to the video frame rate of the video to be played, and play the video to be played according to the target refresh rate. When the user clicks the option "no", the video playing device may play the video to be played according to the initial refresh rate.
It should be noted that, when the video playing device does not play the video, no matter whether the video playing device receives the trigger instruction for the refresh rate intelligent adjustment option, the video playing device may display the image according to the initial refresh rate.
To sum up, in the video playing method provided in the embodiment of the present application, the video playing device may determine the target refresh rate according to the video frame rate of the video to be played, and play the video to be played according to the target refresh rate, where the target refresh rate is an integer multiple of the video frame rate. Even if the video frame rate of the video to be played does not match the refresh rate of the video playing device, the video playing device can determine the target refresh rate matching the video frame rate and smoothly play the video to be played according to the target refresh rate. Therefore, the video playing device can be adapted to the videos to be played at different video frame rates, that is, the videos to be played at different video frame rates can be smoothly played, and the flexibility of playing the videos by the video playing device is high. In addition, in the embodiment of the present application, the refresh rate of the video playing device can be changed only by changing the BSP parameter, that is, the video can be smoothly played only through software without changing hardware of the video playing device, so that the video playing method provided by the embodiment of the present application has high realizability and low implementation difficulty.
Fig. 6 is a schematic structural diagram of a video playing apparatus according to an embodiment of the present application. As shown in fig. 6, the video playing apparatus 60 may include:
the obtaining module 601 is configured to obtain a video frame rate of a video to be played.
The determining module 602 is configured to determine a target refresh rate of the video playing device according to the video frame rate, where the target refresh rate is an integer multiple of the video frame rate.
A setting module 603, configured to set the refresh rate of the video playing device as the target refresh rate.
The playing module 604 is configured to play the video to be played according to the target refresh rate.
To sum up, in the video playing device provided in the embodiment of the present application, the determining module may determine the target refresh rate according to the video frame rate of the video to be played, and the playing module may play the video to be played according to the target refresh rate, where the target refresh rate is an integer multiple of the video frame rate. Even if the video frame rate of the video to be played does not match the refresh rate of the video playing device, the determining module may determine the target refresh rate matching the video frame rate, and the playing module may smoothly play the video to be played according to the target refresh rate. Therefore, the video playing device can be adapted to the videos to be played at different video frame rates, that is, the videos to be played at different video frame rates can be smoothly played, and the flexibility of playing the videos by the video playing device is high.
Optionally, the setting module 603 may be configured to:
acquiring a target BSP parameter value corresponding to the target refresh rate based on the corresponding relation between the refresh rate of the video playing device and the BSP parameter value of the board-level support packet; and updating the BSP parameter value of the video playing equipment to the target BSP parameter value.
Optionally, the determining module 602 may be configured to:
according to the video frame rate, n reference refresh rates are obtained from a specified refresh rate range, the reference refresh rates are integral multiples of the video frame rate, the specified refresh rate range is 60 Hz to 90 Hz, and n is a positive integer. When n is 1, determining the reference refresh rate as the target refresh rate; when n >1, determining a maximum reference refresh rate of the n reference refresh rates as a target refresh rate.
Optionally, the determining module 602 may be configured to:
when the video frame rate is within a target video frame rate range, a target refresh rate is determined based on the video frame rate, the target video frame rate range being 20 Hz to 90 Hz.
Optionally, fig. 7 is a schematic structural diagram of another video playing apparatus provided in this embodiment of the present application. As shown in fig. 7, on the basis of fig. 6, the video playing apparatus 60 may further include:
and a display module 605 for displaying the refresh rate intelligent adjustment option.
The determination module 602 may be configured to: and after a triggering instruction aiming at the intelligent refresh rate adjusting option is received, determining a target refresh rate according to the video frame rate.
To sum up, in the video playing device provided in the embodiment of the present application, the determining module may determine the target refresh rate according to the video frame rate of the video to be played, and the playing module may play the video to be played according to the target refresh rate, where the target refresh rate is an integral multiple of the video frame rate. Even if the video frame rate of the video to be played does not match the refresh rate of the video playing device, the determining module may determine the target refresh rate matching the video frame rate, and the playing module may smoothly play the video to be played according to the target refresh rate. Therefore, the video playing device can be adapted to videos to be played at different video frame rates, that is, the videos to be played at different video frame rates can be smoothly played, and the flexibility of playing the videos by the video playing device is high.
Fig. 8 is a block diagram illustrating a video playback device 800 according to an exemplary embodiment of the present disclosure. The device 800 may be a VR device or a portable mobile terminal such as: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion video Experts compression standard Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion video Experts compression standard Audio Layer 4), a notebook computer, or a desktop computer. Device 800 may also be referred to by other names such as user equipment, portable terminals, laptop terminals, desktop terminals, and the like.
In general, the apparatus 800 includes: a processor 801 and a memory 802.
The processor 801 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so forth. The processor 801 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 801 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 801 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, the processor 801 may further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.
In some embodiments, the apparatus 800 may further optionally include: a peripheral interface 803 and at least one peripheral. The processor 801, memory 802 and peripheral interface 803 may be connected by bus or signal lines. Various peripheral devices may be connected to peripheral interface 803 by a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of a radio frequency circuit 804, a display 805, a camera 806, an audio circuit 807, a positioning component 808, and a power supply 809.
The peripheral interface 803 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 801 and the memory 802. In some embodiments, the processor 801, memory 802, and peripheral interface 803 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 801, the memory 802, and the peripheral interface 803 may be implemented on separate chips or circuit boards, which are not limited by this embodiment.
The Radio Frequency circuit 804 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 804 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 804 converts an electrical signal into an electromagnetic signal to be transmitted, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 804 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuit 804 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: the world wide web, metropolitan area networks, intranets, generations of mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the radio frequency circuit 804 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.
The display screen 805 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display 805 is a touch display, the display 805 also has the ability to capture touch signals on or above the surface of the display 805. The touch signal may be input to the processor 801 as a control signal for processing. At this point, the display 805 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display 805 may be one, providing the front panel of the device 800; in other embodiments, the display 805 may be at least two, respectively disposed on different surfaces of the device 800 or in a folded design; in still other embodiments, the display 805 may be a flexible display, disposed on a curved surface or on a folded surface of the device 800. Even further, the display 805 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The Display 805 may be an LCD (Liquid Crystal Display) Display or an OLED (Organic Light-Emitting Diode) Display.
The camera assembly 806 is used to capture images or video. Optionally, camera assembly 806 includes a front camera and a rear camera. Generally, a front camera is disposed at a front panel of the terminal, and a rear camera is disposed at a rear surface of the terminal. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize panoramic shooting and VR (Virtual Reality) shooting functions or other fusion shooting functions. In some embodiments, camera assembly 806 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.
The audio circuit 807 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, converting the sound waves into electric signals, and inputting the electric signals to the processor 801 for processing or inputting the electric signals to the radio frequency circuit 804 to realize voice communication. The microphones may be multiple and placed at different locations of the device 800 for stereo sound acquisition or noise reduction purposes. The microphone may also be an array microphone or an omni-directional pick-up microphone. The speaker is used to convert electrical signals from the processor 801 or the radio frequency circuit 804 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, the audio circuitry 807 may also include a headphone jack.
The positioning component 808 is operative to locate a current geographic Location of the device 800 for navigation or LBS (Location Based Service). The Positioning component 808 may be a Positioning component based on the Global Positioning System (GPS) in the united states, the beidou System in china, or the galileo System in russia.
A power supply 809 is used to power the various components in the device 800. The power supply 809 can be ac, dc, disposable or rechargeable. When the power supply 809 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
In some embodiments, the device 800 also includes one or more sensors 810. The one or more sensors 810 include, but are not limited to: acceleration sensor 811, gyro sensor 812, pressure sensor 813, fingerprint sensor 814, optical sensor 815 and proximity sensor 816.
The acceleration sensor 811 may detect the magnitude of acceleration in three coordinate axes of a coordinate system established with the apparatus 800. For example, the acceleration sensor 811 may be used to detect the components of the gravitational acceleration in three coordinate axes. The processor 801 may control the touch screen 805 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 811. The acceleration sensor 811 may also be used for acquisition of motion data of a game or a user.
The gyro sensor 812 may detect a body direction and a rotation angle of the device 800, and the gyro sensor 812 may cooperate with the acceleration sensor 811 to acquire a 3D motion of the user with respect to the device 800. From the data collected by the gyro sensor 812, the processor 801 may implement the following functions: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.
Pressure sensors 813 may be disposed on the side bezel of device 800 and/or underneath touch display 805. When the pressure sensor 813 is arranged on the side frame of the device 800, the holding signal of the user to the device 800 can be detected, and the processor 801 performs left-right hand identification or shortcut operation according to the holding signal collected by the pressure sensor 813. When the pressure sensor 813 is disposed at a lower layer of the touch display screen 805, the processor 801 controls the operability control on the UI interface according to the pressure operation of the user on the touch display screen 805. The operability control comprises at least one of a button control, a scroll bar control, an icon control and a menu control.
The fingerprint sensor 814 is used for collecting a fingerprint of the user, and the processor 801 identifies the identity of the user according to the fingerprint collected by the fingerprint sensor 814, or the fingerprint sensor 814 identifies the identity of the user according to the collected fingerprint. Upon identifying that the user's identity is a trusted identity, the processor 801 authorizes the user to perform relevant sensitive operations including unlocking a screen, viewing encrypted information, downloading software, paying for and changing settings, etc. Fingerprint sensor 814 may be disposed on the front, back, or side of device 800. When a physical key or vendor Logo is provided on the device 800, the fingerprint sensor 814 may be integrated with the physical key or vendor Logo.
The optical sensor 815 is used to collect ambient light intensity. In one embodiment, the processor 801 may control the display brightness of the touch screen 805 based on the ambient light intensity collected by the optical sensor 815. Specifically, when the ambient light intensity is high, the display brightness of the touch display screen 805 is increased; when the ambient light intensity is low, the display brightness of the touch display 805 is turned down. In another embodiment, the processor 801 may also dynamically adjust the shooting parameters of the camera assembly 806 based on the ambient light intensity collected by the optical sensor 815.
A proximity sensor 816, also known as a distance sensor, is typically provided on the front panel of the device 800. The proximity sensor 816 is used to capture the distance between the user and the front of the device 800. In one embodiment, the processor 801 controls the touch display 805 to switch from a bright screen state to a dark screen state when the proximity sensor 816 detects that the distance between the user and the front surface of the device 800 is gradually reduced; when the proximity sensor 816 detects that the distance between the user and the front of the device 800 is gradually increasing, the touch display 805 is controlled by the processor 801 to switch from a rest screen state to a light screen state.
Those skilled in the art will appreciate that the configuration shown in fig. 8 is not intended to be limiting of the apparatus 800 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used.
Embodiments of the present invention also provide a non-transitory computer-readable storage medium, such as a memory, including instructions executable by a processor to perform the video playback method. For example, the non-transitory computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a Compact Disc Read-Only Memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.
Embodiments of the present invention further provide a computer program product containing instructions, which when run on a computer, cause the computer to execute the above video playing method.
It should be noted that: in the video playing device provided in the foregoing embodiment, when playing a video, only the division of the functional modules is illustrated, and in practical applications, the functions may be distributed by different functional modules according to needs, that is, the internal structure of the video playing device is divided into different functional modules to complete all or part of the functions described above.
It should be noted that, the method embodiments provided in the embodiments of the present application can be mutually referred to corresponding apparatus embodiments, and the embodiments of the present application do not limit this. The sequence of the steps of the method embodiments provided in the embodiments of the present application can be appropriately adjusted, and the steps can be correspondingly increased or decreased according to the situation, and any method that can be easily conceived by those skilled in the art within the technical scope disclosed in the present application shall be covered by the protection scope of the present application, and therefore, the details are not repeated.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (4)
1. A video playing method is characterized in that the method is used for a video playing device, and the video playing device is provided with an initial refresh rate; the method comprises the following steps:
acquiring a video frame rate of a video to be played, wherein the video to be played is a Virtual Reality (VR) video or an Augmented Reality (AR) video;
when the video frame rate is not within the range of a target video frame rate, playing the video to be played according to the initial refresh rate, or forbidding playing the video to be played, wherein the range of the target video frame rate is 20 Hz to 90 Hz;
after a playing instruction for the video to be played is received, displaying a refresh rate intelligent adjustment option;
when a triggering instruction aiming at the intelligent refresh rate adjusting option is received and the video frame rate is within the range of the target video frame rate, acquiring n reference refresh rates from a specified refresh rate range according to the video frame rate, wherein the reference refresh rates are integral multiples of the video frame rate, the specified refresh rate range is 60 Hz to 90 Hz, and n is a positive integer;
when n =1, determining the reference refresh rate as a target refresh rate;
when n >1, determining a maximum reference refresh rate of the n reference refresh rates as the target refresh rate;
acquiring a target BSP parameter value corresponding to the target refresh rate based on the corresponding relation between the refresh rate of the video playing device and the BSP parameter value of the board-level support packet; the video playing device stores the corresponding relation between each refresh rate in the specified refresh rate range and the BSP parameter value;
updating the BSP parameter value of the video playing equipment to the target BSP parameter value so as to set the refresh rate of the video playing equipment to the target refresh rate;
playing the video to be played according to the target refresh rate;
wherein, the BSP parameters include: the number of data channels lane _ num of the video playing device, the width of a display area of the video playing device, the height of a display area of the video playing device, the bus width bus _ width of the video playing device, display stream compression DSC parameters, the transmission rate mipispeeed of a data channel of the video playing device, a horizontal synchronization signal hsync, a front shoulder hfp of the horizontal synchronization signal, a rear shoulder hbp of the horizontal synchronization signal, a frame synchronization signal vsync, a front shoulder vfp of the frame synchronization signal, and a rear shoulder vbp of the frame synchronization signal; the BSP parameter and the refresh rate F of the video playing equipment meet the following conditions:
2. a video playing device is characterized in that the video playing device is provided with an initial refresh rate; the video playing device comprises:
the device comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring the video frame rate of a video to be played, and the video to be played is a Virtual Reality (VR) video or an Augmented Reality (AR) video; the video playing device is used for: when the video frame rate is not in the range of the target video frame rate, playing the video to be played according to the initial refresh rate, or forbidding playing the video to be played, wherein the range of the target video frame rate is 20 Hz to 90 Hz; after a playing instruction for the video to be played is received, displaying a refresh rate intelligent adjustment option;
the determining module is used for acquiring n reference refresh rates from a specified refresh rate range according to the video frame rate when a triggering instruction aiming at the refresh rate intelligent adjustment option is received and the video frame rate is within the range of the target video frame rate, wherein the reference refresh rates are integral multiples of the video frame rate, the specified refresh rate range is 60 Hz to 90 Hz, and n is a positive integer; when n =1, determining the reference refresh rate as a target refresh rate; when n >1, determining a maximum reference refresh rate of the n reference refresh rates as the target refresh rate;
a setting module, configured to obtain a target BSP parameter value corresponding to the target refresh rate based on a correspondence between the refresh rate of the video playback device and a BSP parameter value of a board-level support packet; updating the BSP parameter value of the video playing device to the target BSP parameter value so as to set the refresh rate of the video playing device to the target refresh rate; the video playing device stores the corresponding relation between each refresh rate in the specified refresh rate range and the BSP parameter value;
the playing module is used for playing the video to be played according to the target refresh rate;
wherein, the BSP parameters include: the number of data channels lane _ num of the video playing device, the width of a display area of the video playing device, the height of a display area of the video playing device, the bus width of the video playing device, bus _ width, display stream compression DSC parameters, the transmission rate mipispeeed of a data channel of the video playing device, a horizontal synchronization signal hsync, a front shoulder hfp of the horizontal synchronization signal, a rear shoulder hbp of the horizontal synchronization signal, a frame synchronization signal vsync, a front shoulder vfp of the frame synchronization signal, and a rear shoulder vbp of the frame synchronization signal; the BSP parameter and the refresh rate F of the video playing device meet the following conditions:
3. a video playback device, characterized in that the video playback device comprises: a memory and a processing component;
the memory for storing a computer program;
the processing component, configured to execute the computer program stored in the memory, and implement the video playing method according to claim 1.
4. A readable storage medium having instructions stored therein,
the readable storage medium, when run on a processing component, causes the processing component to perform the video playback method of claim 1.
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| CN112333384B (en) * | 2020-10-27 | 2022-03-18 | 北京小米移动软件有限公司 | Image preview method, image preview device and storage medium |
| CN112954439A (en) * | 2021-02-07 | 2021-06-11 | 联想(北京)有限公司 | Processing method and electronic equipment |
| CN113099237B (en) * | 2021-04-02 | 2023-06-27 | 深圳市帧彩影视科技有限公司 | Video processing method and device |
| CN113438552B (en) * | 2021-05-19 | 2022-04-19 | 荣耀终端有限公司 | Refresh rate adjusting method and electronic equipment |
| CN114339410A (en) * | 2021-12-28 | 2022-04-12 | 维沃移动通信有限公司 | Frame insertion method and device and electronic equipment |
| CN114724528B (en) * | 2022-04-02 | 2024-03-22 | 深圳创维－Rgb电子有限公司 | Display control method and device of display device, electronic device and storage medium |
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