CN107148776A - Obtain method, device, system and the computer-readable recording medium of video data - Google Patents
Obtain method, device, system and the computer-readable recording medium of video data Download PDFInfo
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- CN107148776A CN107148776A CN201580036527.2A CN201580036527A CN107148776A CN 107148776 A CN107148776 A CN 107148776A CN 201580036527 A CN201580036527 A CN 201580036527A CN 107148776 A CN107148776 A CN 107148776A
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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Abstract
A kind of method, device, system and computer-readable recording medium for obtaining video data, is related to stream media technology field.Existing when the network bandwidth and preferable CPU disposal abilities in order to solve, it may be possible to provide the excessive video data of resolution ratio, the excessive video data of the resolution ratio can not both lift user's visual experience, and occupied bandwidth it is larger the problem of.This method includes：When receiving user's selection picture handoff options, electronic equipment obtains the corresponding PPI of picture handoff options of user's selection value and the size of display video area, the first parameter for needing to send to video server is determined according to the two parameters, video server is received after first parameter, target diagonal pixels number is obtained, target resolution is determined from optional resolution ratio according to the target diagonal pixels number and the corresponding video data of the target resolution is sent to electronic equipment.This method is applied during electronic equipment adjusts the definition of video data.
Description
The present invention relates to the field of streaming media technologies, and in particular, to a method, an apparatus, a system, and a computer-readable storage medium for acquiring video data.
Online video viewing via mobile phones, computers, and other electronic devices has become one of the main entertainment items of contemporary people.
At present, a commonly used technique for playing video is an adaptive bit stream media technique, which specifically includes: an encoder encodes the video source content into a plurality of different bit rate streams, each bit rate stream further divided into a plurality of small stream fragments; the player client can know a plurality of stream segments with different bit rates corresponding to the video to be played through a list file, when the video is started, the client starts a request from the stream segment with the lowest bit rate stream, and if the downloading speed provided by the current network is greater than the bit rate of the stream segment, the client requests the stream segment with higher bit rate; if the download speed provided by the current network is less than the bit rate of the stream segment, a lower bit rate stream segment is requested and eventually gradually switched to the most suitable bit rate segment.
In addition, the liquid crystal panel has a capability of being approximately close to that of the retina of a human eye, and thus, can display an image with an extraordinary definition and sharpness, and is widely used. Generally, when the number of pixels per inch (inch) of the liquid crystal screen is more than 300, the retina of human eyes can hardly distinguish the pixels. In this case, even if video data with a higher resolution is provided, the retina of the human eye hardly recognizes the change in the sharpness thereof, and the improvement of the visual experience is limited.
When the existing adaptive bit stream media technology is adopted to obtain video data, network bandwidth and CPU processing capacity are mainly used as reference factors, when the network bandwidth and the CPU processing capacity are good, video data with overlarge resolution ratio can be provided, and actually, a video with small resolution ratio can meet the visual experience of a user, so that the visual experience of the user cannot be further improved by the video data with overlarge resolution ratio, and the bandwidth is occupied.
Disclosure of Invention
The invention provides a method, a device and a system for acquiring video data and a computer readable storage medium, which can provide video data meeting the visual experience of a user through limited network bandwidth.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a method for acquiring video data, which is applied to a video server, and the method includes:
acquiring the number of target diagonal pixels;
determining a target resolution from selectable resolutions according to the target diagonal pixel number;
and sending the video data corresponding to the target resolution to the electronic equipment.
With reference to the first aspect, in a first implementation manner of the first aspect, the obtaining the target diagonal pixel number specifically includes:
and the video server receives the target diagonal pixel number sent by the electronic equipment.
With reference to the first aspect, in a second implementation manner of the first aspect, the obtaining the target diagonal pixel number specifically includes:
the video server receives a value of a target pixel density PPI and the size of a display video area which are sent by the electronic equipment;
and determining the target diagonal pixel number according to the value of the target pixel density PPI and the size of the display video area.
In a second aspect, an embodiment of the present invention further provides a method for acquiring video data, which is applied to an electronic device, and the method includes:
when a video application interface is displayed, the electronic equipment displays at least one picture switching option, wherein each picture switching option corresponds to a value of one pixel density PPI;
when a picture switching option selected by a user is received, acquiring the size of a display video region and the value of a target pixel density PPI, wherein the value of the target pixel density PPI is the value of the pixel density PPI corresponding to the picture switching option selected by the user;
determining a first parameter according to the size of the display video region and the value of the target pixel density PPI;
and sending the first parameter to a video server so that the video server determines the target diagonal pixel number according to the first parameter.
With reference to the second aspect, in a first implementation manner of the second aspect, the determining a first parameter according to the size of the display video region and the value of the target pixel density PPI specifically includes:
determining both the size of the display video region and the value of the target pixel density PPI as first parameters.
With reference to the second aspect, in a second implementation manner of the second aspect, the determining a first parameter according to the size of the display video region and the value of the target pixel density PPI specifically includes:
obtaining the number of target diagonal pixels according to the size of the display video area and the value of the target pixel density PPI;
and determining the target diagonal pixel number as a first parameter.
In a third aspect, an embodiment of the present invention further provides an apparatus for acquiring video data, where the apparatus is applied to a video server, and the apparatus includes:
the acquisition unit is used for acquiring the number of target diagonal pixels;
the processing unit is used for determining a target resolution from selectable resolutions according to the target diagonal pixel number;
and the sending unit is used for sending the video data corresponding to the target resolution to the electronic equipment.
With reference to the third aspect, in a first implementation manner of the third aspect, the obtaining unit is specifically configured to:
and receiving the target diagonal pixel number sent by the electronic equipment.
With reference to the third aspect, in a second implementation manner of the third aspect, the obtaining unit is specifically configured to:
receiving a value of a target pixel density PPI and a size of a display video area sent by the electronic device;
and determining the target diagonal pixel number according to the value of the target pixel density PPI and the size of the display video area.
In a fourth aspect, an embodiment of the present invention further provides an apparatus for acquiring video data, where the apparatus is applied to an electronic device, and the apparatus includes:
the display unit is used for displaying at least one picture switching option when a video application interface is displayed, wherein each picture switching option corresponds to a value of one pixel density PPI;
the receiving unit is used for receiving the picture switching options selected by the user;
the obtaining unit is used for obtaining the size of a display video region and the value of a target pixel density PPI when the receiving unit receives a picture switching option selected by a user, wherein the value of the target pixel density PPI is the value of the pixel density PPI corresponding to the picture switching option selected by the user;
a processing unit, configured to determine a first parameter according to the size of the display video region and the value of the target pixel density PPI;
and the sending unit is used for sending the first parameter to a video server so that the video server can determine the target diagonal pixel number according to the first parameter.
With reference to the fourth aspect, in a first implementation manner of the fourth aspect, the processing unit is specifically configured to:
determining both the size of the display video region and the value of the target pixel density PPI as first parameters.
With reference to the fourth aspect, in a second implementation manner of the fourth aspect, the processing unit is specifically configured to:
obtaining the number of target diagonal pixels according to the size of the display video area and the value of the target pixel density PPI;
and determining the target diagonal pixel number as a first parameter.
In a fifth aspect, an embodiment of the present invention further provides an apparatus for acquiring video data, where the apparatus is applied to a video server, and the apparatus includes:
the processor is used for acquiring the number of target diagonal pixels;
determining a target resolution from selectable resolutions according to the target diagonal pixel number;
and the transmitter is used for transmitting the video data corresponding to the target resolution to the electronic equipment.
With reference to the fifth aspect, in a first implementation manner of the fifth aspect, the apparatus further includes:
and the receiver is used for receiving the target diagonal pixel number sent by the electronic equipment and sending the target diagonal pixel number to the processor.
With reference to the first implementation manner of the fifth aspect, in a second implementation manner of the fifth aspect, the receiver is further configured to receive the value of the target pixel density PPI and the size of the display video region sent by the electronic device and send the value of the target pixel density PPI and the size of the display video region to the processor;
the processor is further configured to determine the target diagonal pixel number according to the value of the target pixel density PPI and the size of the display video region.
In a sixth aspect, an embodiment of the present invention further provides an apparatus for acquiring video data, where the apparatus is applied to an electronic device, and the apparatus includes:
the display is used for displaying at least one picture switching option when displaying a video application interface, and each picture switching option corresponds to a value of one pixel density PPI;
the processor is used for acquiring the size of a display video region and the value of a target pixel density PPI when a picture switching option selected by a user is received, wherein the value of the target pixel density PPI is the value of the pixel density PPI corresponding to the picture switching option selected by the user;
determining a first parameter according to the size of the display video region and the value of the target pixel density PPI;
a transmitter for sending the first parameter to a video server to facilitate the video server to determine a target diagonal pixel number according to the first parameter.
With reference to the sixth aspect, in a first implementation manner of the sixth aspect, the processor is specifically configured to:
determining both the size of the display video region and the value of the target pixel density PPI as first parameters.
With reference to the sixth aspect, in a second implementation manner of the sixth aspect, the processor is specifically configured to:
obtaining the number of target diagonal pixels according to the size of the display video area and the value of the target pixel density PPI;
and determining the target diagonal pixel number as a first parameter.
In a seventh aspect, an embodiment of the present invention further provides a system for acquiring video data, where the system includes a video server and an electronic device, where:
the electronic device is configured to display at least one picture switching option when displaying a video application interface, where each picture switching option corresponds to a value of one pixel density PPI; when a picture switching option selected by a user is received, acquiring the size of a display video region and the value of a target pixel density PPI, wherein the value of the target pixel density PPI is the value of the pixel density PPI corresponding to the picture switching option selected by the user; determining a first parameter according to the size of the display video region and the value of the target pixel density PPI, and sending the first parameter to the video server;
the video server is used for receiving the first parameter sent by the electronic equipment and acquiring the number of target diagonal pixels according to the first parameter; determining a target resolution from selectable resolutions according to the target diagonal pixel number; and sending the video data corresponding to the target resolution to the electronic equipment.
In an eighth aspect, embodiments of the present invention also provide a non-transitory computer readable storage medium storing one or more programs, the one or more programs including instructions, which when executed by a video server, cause the video server to perform the following events:
acquiring the number of target diagonal pixels;
determining a target resolution from selectable resolutions according to the target diagonal pixel number;
and sending the video data corresponding to the target resolution to the electronic equipment.
In a ninth aspect, embodiments of the present invention also provide a non-transitory computer readable storage medium storing one or more programs, the one or more programs including instructions, which when executed by an electronic device with a video display function, cause the electronic device to perform the following events:
when a video application interface is displayed, the electronic equipment displays at least one picture switching option, wherein each picture switching option corresponds to a value of one pixel density PPI;
when a picture switching option selected by a user is received, acquiring the size of a display video region and the value of a target pixel density PPI, wherein the value of the target pixel density PPI is the value of the pixel density PPI corresponding to the picture switching option selected by the user;
determining a first parameter according to the size of the display video region and the value of the target pixel density PPI;
and sending the first parameter to a video server so that the video server determines the target diagonal pixel number according to the first parameter.
According to the method, the device and the system for acquiring video data provided by the embodiment of the invention, when the picture switching option selected by the user is received, the electronic equipment acquires the PPI value corresponding to the picture switching option selected by the user and the size of the display video area, determines the first parameter required to be sent to the video server according to the two parameters, and after receiving the first parameter, the video server acquires the number of target diagonal pixels according to the first parameter, determines the target resolution from the selectable resolutions according to the number of the target diagonal pixels and sends the video data corresponding to the target resolution to the electronic equipment. Therefore, when the video data is sent to the electronic device, the PPI value is taken as a starting point, the resolution and the size of the display video area are comprehensively considered, and therefore when the size of the display video area is smaller, the video data with the same visual experience is provided for a user. Therefore, the technical scheme of the embodiment of the invention can provide the video data meeting the visual experience of the user through the limited network bandwidth.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a flowchart of a method for acquiring video data according to an embodiment of the present invention;
fig. 2a is a schematic diagram illustrating a correspondence relationship between a frame switching option and a PPI according to an embodiment of the present invention;
fig. 2b is a schematic diagram of a corresponding relationship between a screen switching option and a resolution provided in the prior art;
FIG. 3a is a schematic diagram of a display video area and the size of the display video area in a non-full screen mode;
FIG. 3b is a schematic diagram of the display video area and the size of the display video area in full screen mode;
fig. 4 is a block diagram of an apparatus for acquiring video data according to an embodiment of the present invention;
fig. 5 is a block diagram of another apparatus for acquiring video data according to an embodiment of the present invention;
fig. 6 is a block diagram of another apparatus for acquiring video data according to an embodiment of the present invention;
fig. 7 is a block diagram of another apparatus for acquiring video data according to an embodiment of the present invention.
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The number of Pixels Per Inch (PPI) (also referred to as pixel density in the embodiments of the present invention) is a unit of image resolution, and the higher the PPI value is, the higher the image resolution is, the more detailed the picture is, and the sharper the picture is presented. Based on this, embodiments of the present invention provide a method for acquiring video data based on a value of PPI. The method provided by the embodiment of the invention is applied to a system comprising a video server and electronic equipment.
Fig. 1 is a flowchart of a method for acquiring video data according to an embodiment of the present invention, where the method includes:
101: when displaying the video application interface, the electronic device displays at least one frame switching option, each frame switching option corresponding to a value of the pixel density PPI.
The video application interface can be a video playing interface or a video pausing interface.
Fig. 2a is a schematic diagram illustrating a correspondence relationship between a frame switching option and a PPI according to an embodiment of the present invention. Each picture switching option may correspond to a value of the pixel density PPI, for example, three picture switching options of ultra-definition, high-definition, and standard-definition are displayed on a display of the electronic device, and the three picture switching options of ultra-definition, high-definition, and standard-definition correspond to the values of the PPI, for example: the PPI corresponding to super definition may have a value of 300, the PPI corresponding to high definition may have a value of 200, and the PPI corresponding to standard definition may have a value of 100. As can be understood by those skilled in the art, the PPI values corresponding to the ultradefinition, the high definition, and the standard definition may be other values, and the technical solution of the present invention is not particularly limited thereto.
In addition, the screen switching option may also be directly presented in the form of a value of PPI.
It should be noted that, when the distance between the user and the liquid crystal display is in a certain range, and when the value of the PPI is greater than a certain threshold, the retina of the human eye may hardly distinguish the pixel points. In this case, even if video data of higher resolution is provided, the retina of the human eye hardly recognizes the change in the sharpness, and thus the maximum value of the PPI corresponding to the screen switching option can be set to the threshold value.
Fig. 2b is a schematic diagram of a corresponding relationship between a screen switching option and a resolution provided in the prior art; the display of the electronic device can display three image switching options of ultra-definition, high-definition and standard-definition, and the three image switching options of ultra-definition, high-definition and standard-definition correspond to the resolution, for example: ultra-definition corresponds to a resolution of 1920x1080, high-definition corresponds to 1280x720 and standard definition corresponds to 720x 576.
102: when receiving a user selection of a picture switching option, obtaining the size of the display video area and the value of the target pixel density PPI.
In the specific implementation process of this step, when the user selects the frame switching option, the PPI value corresponding to the frame switching option selected by the user is determined, and the PPI value corresponding to the frame switching option selected by the user is the PPI value of the target pixel density in the embodiment of the present invention.
The size of the display video area is the physical size of the area used for displaying the video interface on the display. Taking the display video area as a rectangular area as an example, in one implementation of the embodiment of the present invention, the size of the display video area may include the length and width of the rectangular area, and the unit may be selected as an inch. In another implementation of the embodiment of the present invention, the size of the display video area may be a diagonal length of the rectangular area, and the unit may be selected as inches. The sizes of the display video areas corresponding to the full-screen mode and the non-full-screen mode are different.
Fig. 3a is a schematic diagram showing the display video area and the size of the display video area in a non-full screen mode, in which the display video area is a part of the total display.
Fig. 3b is a schematic diagram showing the display video area and the size of the display video area in full screen mode, in which the display video area occupies the entire display area.
103: determining a first parameter according to the size of the display video region and the value of the target pixel density PPI.
In one implementation of this step, the size of the display video region and the value of the target pixel density PPI are both directly determined as first parameters, and the video server side determines the target diagonal pixel number according to these two parameter values.
In another implementation manner of this step, the first parameter is a target diagonal pixel number; the target diagonal pixel number may be obtained according to the size of the display video region and the value of the target pixel density PPI. In this implementation manner, the process of determining the target diagonal pixel number specifically includes:
if the acquired size of the display video area is length and width, the diagonal length of the display video area is first obtained from the length and width, for example: the length of the display video area is a, and the width of the display video area is b, so that the diagonal length c of the display video area can be obtained according to a formula; if the size of the acquired display video area itself is the diagonal length of the display video area, the process of calculating the diagonal length of the display video area can be omitted.
Then, the product of the target pixel density PPI and the diagonal length of the display video area is calculated according to a formula, and the obtained diagonal pixel number is the target diagonal pixel number in the implementation mode.
104: the first parameter is sent to a video server.
In the specific implementation process of this step, the video server side stores video data of various contents, such as: in order to distinguish video data of different contents, the electronic device sends the first parameter to the video server, and also sends an identifier of the video data to be acquired to the video server, so that the video server can determine the video data selected by the electronic device. For example: when the electronic device needs the content of the video data 1, it needs to send the identifier of the video data 1 to the video server.
105: the video server receives a first parameter sent by the electronic equipment, and acquires the number of target diagonal pixels according to the first parameter.
Corresponding to the two implementation manners of step 103, in one implementation manner of this step, when the first parameter is the size of the display video region and the value of the target pixel density PPI, the video server receives the first parameter sent by the electronic device, and determines the target diagonal pixel number according to the first parameter, and the determination process may refer to a specific determination process that takes the electronic device as a main execution body, which is not described herein again.
In another implementation manner of this step, when the first parameter is the target diagonal pixel number, the obtaining of the target diagonal pixel number in this step is to directly determine the first parameter sent by the electronic device as the target diagonal pixel number.
106: the video server determines a target resolution from the selectable resolutions according to the target diagonal pixel number.
The video server side can store video data, each video data can have N different resolutions, N is larger than or equal to 1, and each resolution can be called as an optional resolution. The resolution varies and the sharpness of the video data varies. The resolution is composed of a horizontal pixel number x and a vertical pixel number y, and the diagonal pixel number corresponding to each optional resolution can be calculated according to the values of x and y, for example: the number of diagonal pixels corresponding to the resolution of 1920 (the number of horizontal pixels x) and 1080 (the number of vertical pixels y) is
In the specific implementation process of this step, the video server may determine, according to an identifier of video data that needs to be acquired and is sent by the electronic device, video data selected by the user device, and when the video data selected by the user has only one resolution on the video server side, determine that the one resolution is the target resolution.
When the video data selected by the user has N resolutions on the video server side, and N is larger than 1, comparing the diagonal pixel numbers respectively corresponding to the N resolutions with the target diagonal pixel number, and determining the resolution corresponding to the diagonal pixel number with the minimum difference value with the target diagonal pixel number as the target resolution.
107: and the video server sends the video data corresponding to the target resolution to the electronic equipment.
And the electronic equipment receives video data which is sent by the video server and corresponds to the target resolution.
According to the method for acquiring video data provided by the embodiment of the invention, when the picture switching option selected by the user is received, the electronic device acquires the PPI value corresponding to the picture switching option selected by the user and the size of the displayed video area, determines the first parameter required to be sent to the video server according to the two parameters, and after receiving the first parameter, the video server acquires the number of target diagonal pixels according to the first parameter, determines the target resolution from the selectable resolutions according to the number of the target diagonal pixels and sends the video data corresponding to the target resolution to the electronic device. Therefore, when the video data is sent to the electronic device, the PPI value is taken as a starting point, the resolution and the size of the display video area are comprehensively considered, and therefore when the size of the display video area is smaller, the video data with the same visual experience is provided for a user. Therefore, the technical scheme of the embodiment of the invention can provide the video data meeting the visual experience of the user through the limited network bandwidth.
In addition, in the embodiment of the invention, each picture switching option is respectively corresponding to the values of different pixel densities PPI, so that clearer video data can be provided for users as much as possible. The method specifically comprises the following steps: with reference to fig. 2a and fig. 2b, when the user selects the same frame switching option, by using the method provided by the embodiment of the present invention, when the sizes of the displayed video regions are different, the resolutions corresponding to the video data received by the electronic device are also different, but the pixel density PPI values are the same, so that the definitions thereof are the same, and a better user experience can be provided for the user. In the prior art, when a user selects the same picture switching option, data with the same resolution is returned no matter how large the current display video area is, and when the display video area is large in size, the definition of the picture is poor, so that the visual experience of the user cannot be met.
As a specific application of the method, an embodiment of the present invention further provides a specific application scenario, in which when a display of an electronic device displays a video application interface, three screen switching options of ultra-definition, high-definition, and standard-definition are also displayed, and values of corresponding pixel densities PPI are 300, 200, and 100, respectively. The video server stores three types of video data with the same content but different resolutions, for example: video data of three resolutions, b1 ═ 1920,1080, b2 ═ 1280,720 and b3 ═ 720, 576. The abscissa represents the number of horizontal pixels, and the ordinate represents the number of vertical pixels.
In this application scenario, the first parameter sent by the electronic device is taken as the size of the display video region and the value of the pixel density PPI corresponding to the screen switching option selected by the user.
When receiving a picture switching option of 'super-clear' selected by a user, the electronic equipment acquires the size of a display video area and the value of the pixel density PPI corresponding to the picture switching option of 'super-clear'. For example: the acquired size of the display video area is: 4 inches long and 3 inches wide; the pixel density PPI corresponding to the "super-clear" frame switching option is 300.
The electronic device sends parameter information of the display video area of 3 inches long and 4 inches wide and the pixel density value 300 to the video server.
The video server combines a calculation formula of PPI according to the received values of the size and the pixel density PPI of the display video area: and obtaining the target diagonal pixel number or the square of the target diagonal pixel number. For example: the size of the display video area is: when the length is 4 inches and the width is 3 inches, the diagonal length of the display video area is 5 inches; the PPI value is 300, the diagonal length of the display video area is 5 inches, and the target diagonal pixel number is 1500 by substituting the PPI value into a formula.
The video server also needs to calculate the number of diagonal pixels or the square of the number of diagonal pixels corresponding to the three resolutions b1, b2 and b 3. For example: b1, b2, b3, and
the video server compares the diagonal pixel numbers respectively corresponding to b1, b2 and b3 with the target diagonal pixel number 1500 to obtain the diagonal pixel number 1468 corresponding to b2, and if the difference value between the diagonal pixel number 1468 and the target diagonal pixel number 1500 is minimum, b2(1280,720) is determined as the target resolution.
The video server returns the video data corresponding to the resolution of b2 ═ (1280,720) to the electronic device.
In addition, in practical applications of the existing electronic device, three screen switching options of ultra-definition, high-definition and standard-definition correspond to three resolution values of 1920x1080, 1280x720 and 720x576, so that when a user selects the option of ultra-definition, the video server in the embodiment of the present invention sends video data corresponding to a resolution of 1280x720 to the electronic device, while sending video data corresponding to a resolution of 1920x1080 in the prior art, from the perspective of user experience, when the resolution reaches a certain threshold, a retina of a human eye cannot distinguish a gap between a pixel and a pixel, and therefore, in a display area with a length of 4 inches and a width of 3 inches shown in the above example, the video data corresponding to 1280x720 and the video data corresponding to 1920x1080 are the same as a definition of an image corresponding to the two resolutions. In this way, the present invention can provide video data with a comparable visual experience but a smaller amount of data at the same network bandwidth compared to the prior art.
It should be noted that the application scenario is only to explain one optional manner of the embodiment of the present invention, and a person skilled in the art may obtain other optional manners according to the application scenario, so that the embodiment of the present invention is not described again.
As a specific implementation of the method shown in the above figures, the embodiment of the present invention further provides an apparatus for acquiring video data.
Fig. 4 is a schematic structural diagram of an apparatus for acquiring video data according to an embodiment of the present invention, which is applied to a video server, and includes:
an obtaining unit 201 is used for obtaining the target diagonal pixel number.
And the processing unit 202 is used for determining the target resolution from the selectable resolutions according to the target diagonal pixel number.
A sending unit 203, configured to send the video data corresponding to the target resolution to the electronic device.
Further, the obtaining unit 201 is specifically configured to:
and receiving the target diagonal pixel number sent by the electronic equipment.
Further, the obtaining unit 201 is specifically configured to:
receiving a value of a target pixel density PPI and a size of a display video area sent by the electronic device;
and determining the target diagonal pixel number according to the value of the target pixel density PPI and the size of the display video area.
Fig. 5 is a schematic structural diagram of an apparatus for acquiring video data according to an embodiment of the present invention, which is applied to an electronic device, and includes:
a display unit 301, configured to display at least one frame switching option when displaying a video application interface, where each frame switching option corresponds to a value of one pixel density PPI;
a receiving unit 302, configured to receive a screen switching option selected by a user;
an obtaining unit 303, configured to obtain, when the receiving unit 302 receives a user selection of a picture switching option, a size of a display video region and a value of a target pixel density PPI, where the value of the target pixel density PPI is a value of a pixel density PPI corresponding to the user selection of the picture switching option;
a processing unit 304 for determining a first parameter based on the size of the display video region and the value of the target pixel density PPI;
a sending unit 305, configured to send the first parameter to a video server so that the video server determines a target diagonal pixel number according to the first parameter.
Further, the receiving unit 302 is further configured to receive video data sent by the video server.
Further, the processing unit 304 is specifically configured to:
determining both the size of the display video region and the value of the target pixel density PPI as first parameters.
Further, the processing unit 304 is specifically configured to:
obtaining the number of target diagonal pixels according to the size of the display video area and the value of the target pixel density PPI;
and determining the target diagonal pixel number as a first parameter.
According to the device for acquiring video data provided by the embodiment of the invention, when the picture switching option selected by the user is received, the electronic equipment acquires the PPI value corresponding to the picture switching option selected by the user and the size of the displayed video area, determines the first parameter required to be sent to the video server according to the two parameters, and after receiving the first parameter, the video server acquires the number of target diagonal pixels according to the first parameter, determines the target resolution from the selectable resolutions according to the number of the target diagonal pixels and sends the video data corresponding to the target resolution to the electronic equipment. Therefore, when the video data is sent to the electronic device, the PPI value is taken as a starting point, the resolution and the size of the display video area are comprehensively considered, and therefore when the size of the display video area is smaller, the video data with the same visual experience is provided for a user. Therefore, the technical scheme of the embodiment of the invention can provide the video data meeting the visual experience of the user through the limited network bandwidth.
Fig. 6 is a schematic structural diagram of an apparatus for acquiring video data according to an embodiment of the present invention, which is applied to a video server 400, and the apparatus specifically includes: a processor 401, a transmitter 402, a receiver 403, a memory 404 and a bus 405, the processor 401, the transmitter 402, the receiver 403 and the memory 404 being interconnected by the bus 405, wherein:
a processor 401, configured to obtain a target diagonal pixel number;
and determining the target resolution from the selectable resolutions according to the target diagonal pixel number.
A transmitter 402, configured to transmit video data corresponding to the target resolution to an electronic device.
Further, the receiver 403 is configured to receive the target diagonal pixel number sent by the electronic device and send the target diagonal pixel number to the processor 401.
Further, the receiver 403 is further configured to receive the value of the target pixel density PPI and the size of the display video region sent by the electronic device and send the value of the target pixel density PPI and the size of the display video region to the processor 401;
the processor 401 is further configured to determine the target diagonal pixel number according to the value of the target pixel density PPI and the size of the display video region.
In addition, although not shown in fig. 6, the video server 400 may further include a power source (such as a battery) for supplying power to various components, and an external interface, which may be a standard Micro USB interface, may be a multi-pin connector, may be used for connecting electronic devices or communicating with other devices, and the like.
The memory 404 may be a single storage device or a combination of a plurality of storage elements, and may include a Random Access Memory (RAM), or a non-volatile memory (non-volatile memory), such as a magnetic disk memory or a Flash memory. The memory 404 may mainly include a storage instruction area and a storage data area. The storage instruction area can store instructions and the like required by an operating system, the processor 401 and the like; the storage data area may be used to store the received value of the target pixel density PPI, the size of the display video region, and the like.
The processor 401 is a control center of the video server 400, connects various parts of the entire video server using various interfaces and lines, and performs various functions of the video server 400 and processes data by executing or executing instructions stored in the memory 404 and calling data stored in the memory 404. Alternatively, the processor 401 may be a single processor or may be a general term for multiple processing elements. For example, the processor may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present invention, such as: one or more microprocessors (digital signal processors, DSP for short), or one or more Field Programmable Gate arrays (FPGA for short).
The bus 405 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.
Fig. 7 is a schematic structural diagram of another apparatus for acquiring video data according to an embodiment of the present invention, which is applied to an electronic device 500, and includes: a display 501, a processor 502, a transmitter 503, a receiver 504, a memory 505 and a bus 506, the display 501, the processor 502, the transmitter 503, the receiver 504 and the memory 505 being interconnected by the bus 506, wherein:
a display 501, configured to display at least one picture switching option when displaying a video application interface, where each picture switching option corresponds to a value of a pixel density PPI;
a processor 502, configured to, when a user selects a picture switching option, obtain a size of a display video region and a value of a target pixel density PPI, where the value of the target pixel density PPI is a value of a pixel density PPI corresponding to the picture switching option selected by the user;
determining a first parameter according to the size of the display video region and the value of the target pixel density PPI;
a transmitter 503, configured to send the first parameter to a video server so that the video server determines the target diagonal pixel number according to the first parameter.
The receiver 504 is configured to receive video data sent by a video server.
Further, the processor 502 is specifically configured to:
determining both the size of the display video region and the value of the target pixel density PPI as first parameters.
Further, the processor 502 is specifically configured to:
obtaining the number of target diagonal pixels according to the size of the display video area and the value of the target pixel density PPI;
and determining the target diagonal pixel number as a first parameter.
The display 501 may be a display with a touch sensitive display unit, wherein the display 501 provides an input interface and an output interface between the electronic device and a user. The touch-sensitive display unit may collect touch operations by a user on or near the touch-sensitive display unit, such as user operations on or near the touch-sensitive display unit using a finger, joint, stylus, or any suitable object. The touch-sensitive display unit can detect touch actions on the touch-sensitive display unit, grid capacitance values and contact point coordinates of the touch-sensitive display unit, send the touch actions, the grid capacitance values and the contact point coordinate information of the touch-sensitive display unit to the processor, and receive and execute commands sent by the processor. The touch-sensitive display unit displays visual output. The visual output may include graphics, text, icons, video, and any combination thereof (collectively "graphics").
The touch sensitive display unit may use LCD (liquid crystal display) technology, LPD (light emitting polymer display) technology, or LED (light emitting diode) technology, although other display technologies may also be used. The touch-sensitive display unit may detect contact and any movement or break thereof using any of a variety of touch sensing technologies now known or later developed, including but not limited to capacitive, resistive, infrared, and surface acoustic wave technologies, as well as other proximity sensor arrays or other elements for determining one or more points of contact with the touch-sensitive display unit.
The user may make contact with the touch-sensitive display unit using any suitable object or appendage, such as a stylus, a finger, a joint, and so forth. For example: when the user interface is designed to work primarily with joint-based contacts and gestures, the electronic device translates the joint-based coarse input into a precise pointer/cursor position or command to perform the action desired by the user. For example: when the picture switching option is displayed on the display of the electronic equipment, a user can select the target picture switching option by clicking the target picture switching option through hand touch, and the touch-sensitive display unit receives touch selection operation of the user and then sends the selection information of the user to the processor.
In some embodiments, the electronic device may further include an audio processing unit that may receive voice information input by a user and transmit the voice information to the processor to perform a corresponding operation. For example: when the picture switching options are displayed on the display of the electronic equipment, a user can input a target picture switching option which the user wants to select through voice, and the audio processing unit receives the selection of the user and sends the selection information to the processor.
Further, although not shown in fig. 7, the electronic device may also include speakers, audio circuitry, a microphone, etc. to provide an audio interface between the user and the electronic device; the USB interface circuit also comprises a power supply (such as a battery) for supplying power to each component, and also comprises an external interface, wherein the external interface can be a standard Micro USB interface, can also be a multi-pin connector, can be used for connecting other devices for communication, and can also be used for connecting a charger for charging electronic equipment; and a camera, a flash lamp and the like can be further included, which are not described in detail herein.
The memory 505 may be a single storage device or a combination of a plurality of storage elements, and may include a Random Access Memory (RAM), or may include a non-volatile memory (non-volatile memory), such as a magnetic disk memory or a Flash memory. The memory 505 may mainly include a storage instruction area and a storage data area. The storage instruction area can store instructions and the like required by an operating system, a processor and the like; the storage data area can be used for storing the corresponding relationship between the frame switching options and the pixel density PPI value.
The processor 502 is a control center of the electronic device 500, connects various parts of the entire cellular phone using various interfaces and lines, and performs various functions of the electronic device 500 and processes data by executing or executing instructions stored in the memory 505 and calling data stored in the memory 505. Optionally, the processor 502 may be a single processor or may be a general term for multiple processing elements. For example, the processor may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present invention, such as: one or more microprocessors (digital signal processors, DSP for short), or one or more Field Programmable Gate arrays (FPGA for short).
The bus 506 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 7, but this is not intended to represent only one bus or type of bus.
According to the device for acquiring video data provided by the embodiment of the invention, when the picture switching option selected by the user is received, the electronic equipment acquires the PPI value corresponding to the picture switching option selected by the user and the size of the displayed video area, determines the first parameter required to be sent to the video server according to the two parameters, and after receiving the first parameter, the video server acquires the number of target diagonal pixels according to the first parameter, determines the target resolution from the selectable resolutions according to the number of the target diagonal pixels and sends the video data corresponding to the target resolution to the electronic equipment. Therefore, when the video data is sent to the electronic device, the PPI value is taken as a starting point, the resolution and the size of the display video area are comprehensively considered, and therefore when the size of the display video area is smaller, the video data with the same visual experience is provided for a user. Therefore, the technical scheme of the embodiment of the invention can provide the video data meeting the visual experience of the user through the limited network bandwidth.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus necessary general hardware, and certainly may also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present invention may be substantially implemented or a part of the technical solutions contributing to the prior art may be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a hard disk, or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention. The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any combination, modification, equivalent replacement, improvement, etc. within the technical scope of the present invention can be easily conceived by those skilled in the art, and all the combinations, modifications, equivalent replacements, improvements, etc. should be covered within the scope of the present invention.
Claims (21)
- A method for acquiring video data, applied to a video server, the method comprising:acquiring the number of target diagonal pixels;determining a target resolution from selectable resolutions according to the target diagonal pixel number;and sending the video data corresponding to the target resolution to the electronic equipment.
- The method according to claim 1, wherein the obtaining the target diagonal pixel number specifically includes:and the video server receives the target diagonal pixel number sent by the electronic equipment.
- The method according to claim 1, wherein the obtaining the target diagonal pixel number specifically includes:the video server receives a value of a target pixel density PPI and the size of a display video area which are sent by the electronic equipment;and determining the target diagonal pixel number according to the value of the target pixel density PPI and the size of the display video area.
- A method for acquiring video data, applied to an electronic device, the method comprising:when a video application interface is displayed, the electronic equipment displays at least one picture switching option, wherein each picture switching option corresponds to a value of one pixel density PPI;when a picture switching option selected by a user is received, acquiring the size of a display video region and the value of a target pixel density PPI, wherein the value of the target pixel density PPI is the value of the pixel density PPI corresponding to the picture switching option selected by the user;determining a first parameter according to the size of the display video region and the value of the target pixel density PPI;and sending the first parameter to a video server so that the video server determines the target diagonal pixel number according to the first parameter.
- The method according to claim 4, wherein the determining a first parameter according to the size of the display video region and the value of the target pixel density PPI comprises:determining both the size of the display video region and the value of the target pixel density PPI as first parameters.
- The method according to claim 4, wherein the determining a first parameter according to the size of the display video region and the value of the target pixel density PPI comprises:obtaining the number of target diagonal pixels according to the size of the display video area and the value of the target pixel density PPI;and determining the target diagonal pixel number as a first parameter.
- An apparatus for acquiring video data, applied to a video server, the apparatus comprising:the acquisition unit is used for acquiring the number of target diagonal pixels;the processing unit is used for determining a target resolution from selectable resolutions according to the target diagonal pixel number;and the sending unit is used for sending the video data corresponding to the target resolution to the electronic equipment.
- The apparatus according to claim 7, wherein the obtaining unit is specifically configured to:and receiving the target diagonal pixel number sent by the electronic equipment.
- The apparatus according to claim 7, wherein the obtaining unit is specifically configured to:receiving a value of a target pixel density PPI and a size of a display video area sent by the electronic device;and determining the target diagonal pixel number according to the value of the target pixel density PPI and the size of the display video area.
- An apparatus for acquiring video data, applied to an electronic device, the apparatus comprising:the display unit is used for displaying at least one picture switching option when a video application interface is displayed, wherein each picture switching option corresponds to a value of one pixel density PPI;the receiving unit is used for receiving the picture switching options selected by the user;the obtaining unit is used for obtaining the size of a display video region and the value of a target pixel density PPI when the receiving unit receives a picture switching option selected by a user, wherein the value of the target pixel density PPI is the value of the pixel density PPI corresponding to the picture switching option selected by the user;a processing unit, configured to determine a first parameter according to the size of the display video region and the value of the target pixel density PPI;and the sending unit is used for sending the first parameter to a video server so that the video server can determine the target diagonal pixel number according to the first parameter.
- The apparatus for acquiring video data according to claim 10, wherein the processing unit is specifically configured to:determining both the size of the display video region and the value of the target pixel density PPI as first parameters.
- The apparatus for acquiring video data according to claim 10, wherein the processing unit is specifically configured to:obtaining the number of target diagonal pixels according to the size of the display video area and the value of the target pixel density PPI;and determining the target diagonal pixel number as a first parameter.
- An apparatus for acquiring video data, applied to a video server, the apparatus comprising:the processor is used for acquiring the number of target diagonal pixels;determining a target resolution from selectable resolutions according to the target diagonal pixel number;and the transmitter is used for transmitting the video data corresponding to the target resolution to the electronic equipment.
- The apparatus of claim 13, further comprising:and the receiver is used for receiving the target diagonal pixel number sent by the electronic equipment and sending the target diagonal pixel number to the processor.
- The apparatus of claim 14,the receiver is further configured to receive the value of the target pixel density PPI and the size of the display video region sent by the electronic device and send the value of the target pixel density PPI and the size of the display video region to the processor;the processor is further configured to determine the target diagonal pixel number according to the value of the target pixel density PPI and the size of the display video region.
- An apparatus for acquiring video data, applied to an electronic device, the apparatus comprising:the display is used for displaying at least one picture switching option when displaying a video application interface, and each picture switching option corresponds to a value of one pixel density PPI;the processor is used for acquiring the size of a display video region and the value of a target pixel density PPI when a picture switching option selected by a user is received, wherein the value of the target pixel density PPI is the value of the pixel density PPI corresponding to the picture switching option selected by the user;determining a first parameter according to the size of the display video region and the value of the target pixel density PPI;a transmitter for sending the first parameter to a video server to facilitate the video server to determine a target diagonal pixel number according to the first parameter.
- The apparatus of claim 16, wherein the processor is specifically configured to:determining both the size of the display video region and the value of the target pixel density PPI as first parameters.
- The apparatus of claim 16, wherein the processor is specifically configured to:obtaining the number of target diagonal pixels according to the size of the display video area and the value of the target pixel density PPI;and determining the target diagonal pixel number as a first parameter.
- A system for acquiring video data, the system comprising a video server and an electronic device, wherein:the electronic device is configured to display at least one picture switching option when displaying a video application interface, where each picture switching option corresponds to a value of one pixel density PPI; when a picture switching option selected by a user is received, acquiring the size of a display video region and the value of a target pixel density PPI, wherein the value of the target pixel density PPI is the value of the pixel density PPI corresponding to the picture switching option selected by the user; determining a first parameter according to the size of the display video region and the value of the target pixel density PPI, and sending the first parameter to the video server;the video server is used for receiving the first parameter sent by the electronic equipment and acquiring the number of target diagonal pixels according to the first parameter; determining a target resolution from selectable resolutions according to the target diagonal pixel number; and sending the video data corresponding to the target resolution to the electronic equipment.
- A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a video server, cause the video server to perform the following events:acquiring the number of target diagonal pixels;determining a target resolution from selectable resolutions according to the target diagonal pixel number;and sending the video data corresponding to the target resolution to the electronic equipment.
- A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by an electronic device with display video capabilities, cause the electronic device to perform the following:when a video application interface is displayed, the electronic equipment displays at least one picture switching option, wherein each picture switching option corresponds to a value of one pixel density PPI;when a picture switching option selected by a user is received, acquiring the size of a display video region and the value of a target pixel density PPI, wherein the value of the target pixel density PPI is the value of the pixel density PPI corresponding to the picture switching option selected by the user;determining a first parameter according to the size of the display video region and the value of the target pixel density PPI;and sending the first parameter to a video server so that the video server determines the target diagonal pixel number according to the first parameter.
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| CN107148776B (en) | 2020-04-28 |
| WO2017054142A1 (en) | 2017-04-06 |
| JP6505327B2 (en) | 2019-04-24 |
| JP2018531564A (en) | 2018-10-25 |
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