CN112114906B - Multi-camera application mode method based on android platform - Google Patents
Multi-camera application mode method based on android platform Download PDFInfo
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- CN112114906B CN112114906B CN202011062695.8A CN202011062695A CN112114906B CN 112114906 B CN112114906 B CN 112114906B CN 202011062695 A CN202011062695 A CN 202011062695A CN 112114906 B CN112114906 B CN 112114906B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44557—Code layout in executable memory
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Abstract
The invention discloses a multi-camera application mode method based on an android platform, which comprises the following steps: the system comprises a plurality of application platforms, a camera control module and a camera control module, wherein each application platform is controlled by one camera, and camera data resources are mutually switched between each application platform; the service module is used for inquiring the bottom-layer image pickup piece and establishing connection with the bottom-layer image pickup piece; the camera shooting reset module is established by the camera shooting piece and is used for taking charge of specific focusing, previewing and shooting; and the display service module is used for receiving different display data for synthesis and is responsible for sending the data to the display equipment. According to the invention, a plurality of applications can be started simultaneously, each application can open one camera, only the data flow information of the corresponding camera is obtained, and the camera data resources can be exchanged between the running applications.
Description
Technical Field
The invention relates to the field of android multimedia application, in particular to a multi-camera application mode method based on an android platform.
Background
In the multimedia application of android, the rich multimedia functions of the camera are a bright point, and with the continuous development of android, the support of simultaneously opening a plurality of cameras is realized, and meanwhile, the more diversified demands on the plurality of cameras are also continuously appearing.
The existing method for simultaneously opening a plurality of cameras to operate corresponding to a program or app is easy to cause the inconvenience of blocking or management of overlarge data, and a large amount of data processing needs a large storage space and high-requirement equipment, so that the working efficiency is reduced, and the working cost is increased.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a multi-camera application mode method based on an android platform, which can simultaneously start a plurality of applications, each application can open one camera, and only acquire the data flow information of the corresponding camera. Camera data resources may be exchanged between applications already running. To achieve the above objects and other advantages and in accordance with the purpose of the present invention, there is provided an android platform-based multi-camera application method, including:
the system comprises a plurality of application platforms, a camera control module and a camera control module, wherein each application platform is controlled by one camera, and camera data resources are mutually switched between each application platform;
the service module is used for inquiring the bottom-layer image pickup piece and establishing connection with the bottom-layer image pickup piece;
the camera shooting reset module is established by the camera shooting piece and is used for taking charge of specific focusing, previewing and shooting;
the display service module is used for receiving different display data for synthesis and is responsible for sending the data to the display equipment;
and each image pickup object corresponding to the application platform is provided with a data descriptor, and the data descriptor is used for recording the id of the image pickup object opened by the image pickup object and creating the corresponding image pickup reset module.
Preferably, the method comprises the following implementation steps:
s1, acquiring information of an image pickup piece;
s2, opening a corresponding image pickup piece;
s3, if the step S2 fails to open the image pickup part, updating the information of the image pickup part; if the step S2 is successful in opening the image pickup part, the information of the image pickup part is updated, and meanwhile, the image pickup part creates an image pickup data descriptor;
s4, creating a related camera shooting reset module;
s5, the application platform sends the requirement;
s6, the camera shooting reset module processes the requirement, so that the camera shooting piece can correspondingly realize preview and take a picture;
and S7, integrating the data streams of different image pickup pieces received by the display service module, and uniformly sending the integrated data streams to a display screen for display.
Preferably, the step S1 includes: the service module maintains a shooting piece list, wherein the shooting piece list comprises shooting id0, shooting id1 and shooting id3, and corresponding shooting piece information is acquired through the shooting id.
Preferably, the state information is added on the basis of the original information of the camera acquired by the camera id, and the state information comprises an open state, a closed state and an error state, wherein the open state indicates that the camera is opened, the closed state indicates that the camera is in the closed state, and the error state indicates that the hardware of the bottom camera is abnormal.
Preferably, the step S3 includes: after receiving the request for opening the camera, the service module traverses the state of the camera id, and if the camera id is in the open state, the service module tries to open the camera, returns to successfully indicate that the opening is successful, returns to incorrectly indicate that the hardware of the camera is abnormal, and updates the state information of the corresponding camera id according to the returned result.
Preferably, the image capturing piece data resource interchange includes the steps of:
s101, a first application opens a first image pickup piece, and a data descriptor of the first image pickup piece copies the first image pickup piece and records the first image pickup piece as a first image pickup piece fd00;
s102, a second application opens a second image pickup piece, and the data descriptor of the second image pickup piece copies the second image pickup piece and records the second image pickup piece as a second image pickup piece fd11;
s103, the first image pickup piece fd00 and the second image pickup piece fd11 exchange data information with each other;
s104, after the exchange is completed, the first image pickup piece points to a first image pickup piece fd00, and the second image pickup piece points to a second image pickup piece fd11;
s105, respectively releasing resources occupied by the first image pickup piece and the second image pickup piece.
Compared with the prior art, the invention has the beneficial effects that: the camera is opened by each application, so that a plurality of cameras are started simultaneously, corresponding quota data information of each camera can be exchanged among the corresponding applications, the states of the cameras can be updated in real time through the camera id, and the states of the cameras are monitored.
Drawings
FIG. 1 is a flow chart of a multi-camera application method based on an android platform according to the present invention;
fig. 2 is a block flow diagram of image capturing piece exchange data of a multi-camera application method based on an android platform according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-2, a multi-camera application method based on an android platform comprises the following steps: the system comprises a plurality of application platforms, a camera control module and a camera control module, wherein each application platform is controlled by one camera, and camera data resources are mutually switched between each application platform;
the service module is used for inquiring the bottom-layer image pickup piece and establishing connection with the bottom-layer image pickup piece;
the camera shooting reset module is established by the camera shooting piece and is used for taking charge of specific focusing, previewing and shooting;
the display service module is used for receiving different display data for synthesis and is responsible for sending the data to the display equipment;
and each image pickup object corresponding to the application platform is provided with a data descriptor, and the data descriptor is used for recording the id of the image pickup object opened by the image pickup object and creating the corresponding image pickup reset module.
Further, the method comprises the following implementation steps:
s1, acquiring information of an image pickup piece;
s2, opening a corresponding image pickup piece;
s3, if the step S2 fails to open the image pickup part, updating the information of the image pickup part; if the step S2 is successful in opening the image pickup part, the information of the image pickup part is updated, and meanwhile, the image pickup part creates an image pickup data descriptor;
s4, creating a related camera shooting reset module;
s5, the application platform sends the requirement;
s6, the camera shooting reset module processes the requirement, so that the camera shooting piece can correspondingly realize preview and take a picture;
and S7, integrating the data streams of different image pickup pieces received by the display service module, and uniformly sending the integrated data streams to a display screen for display.
Further, the step S1 includes: the service module maintains a shooting piece list, wherein the shooting piece list comprises shooting id0, shooting id1 and shooting id3, and corresponding shooting piece information is acquired through the shooting id, so that three cameras can be used.
Furthermore, state information is added on the basis of original information of the camera acquired by the camera id, wherein the state information comprises an open state, a closed state and an error state, the open state indicates that the camera is opened, the closed state indicates that the camera is in the closed state, and the error state indicates that hardware of the bottom camera is abnormal.
Further, the step S3 includes: after receiving the request for opening the image pickup part, the service module traverses the state of the image pickup id, and if the image pickup id is in the open state, the service module tries to open the image pickup part, returns to successfully indicate the open success, returns to wrongly indicate the hardware abnormality of the camera, updates the state information of the corresponding image pickup id according to the return result, returns image pickup part information after the service module is successfully opened, maintains three image pickup parts, namely a first image pickup part, a second image pickup part and a third image pickup part, and simultaneously creates the descriptor image pickup part fd0, the image pickup part fd1 and the image pickup part fd2 of the corresponding image pickup part.
Further, the image capturing piece data resource interchange includes the steps of:
s101, a first application opens a first image pickup piece, and a data descriptor of the first image pickup piece copies the first image pickup piece and records the first image pickup piece as a first image pickup piece fd00;
s102, a second application opens a second image pickup piece, and the data descriptor of the second image pickup piece copies the second image pickup piece and records the second image pickup piece as a second image pickup piece fd11;
s103, the first image pickup piece fd00 and the second image pickup piece fd11 exchange data information with each other;
s104, after the exchange is completed, the first image pickup piece points to a first image pickup piece fd00, and the second image pickup piece points to a second image pickup piece fd11;
s105, respectively releasing resources occupied by the first image pickup piece and the second image pickup piece.
The number of devices and the scale of processing described herein are intended to simplify the description of the invention, and applications, modifications and variations of the invention will be apparent to those skilled in the art.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (1)
1. A multi-camera application mode method based on an android platform is characterized by comprising the following steps:
the system comprises a plurality of application platforms, a camera control module and a camera control module, wherein each application platform is controlled by one camera, and camera data resources are mutually switched between each application platform;
the service module is used for inquiring the bottom-layer image pickup piece and establishing connection with the bottom-layer image pickup piece;
the camera shooting reset module is established by the camera shooting piece and is used for taking charge of specific focusing, previewing and shooting;
the display service module is used for receiving different display data for synthesis and is responsible for sending the data to the display equipment;
a data descriptor is arranged on each camera object corresponding to the application platform, and the data descriptor is used for recording the id of a camera opened by the camera and creating a corresponding camera reset module;
the specific implementation steps comprise: s1, acquiring information of an image pickup piece, wherein the step S1 comprises the following steps: the service module maintains a camera list, wherein the camera list comprises a camera id0, a camera id1 and a camera id3, corresponding camera information is acquired through the camera id, state information is added on the basis of original information of a camera acquired by the camera id, the state information comprises an open state, a closed state and an error state, the open state indicates that a camera is opened, the closed state indicates that the camera is in the closed state, and the error state indicates that hardware of a camera at the bottom layer is abnormal;
s2, opening a corresponding image pickup piece;
s3, if the step S2 fails to open the image pickup part, updating the information of the image pickup part; if the step S2 is successful in opening the image pickup part, the information of the image pickup part is updated, meanwhile, the image pickup part is used for creating a data descriptor of the image pickup part, after receiving a request for opening the image pickup part, the service module traverses the state of the image pickup id, if the image pickup id is in the open state, the service module tries to open the image pickup part, returns a successful indication of the successful opening, returns an error indication of hardware abnormality of the image pickup part, and updates the state information of the corresponding image pickup id according to the returned result;
s4, creating a related camera shooting reset module;
s5, the application platform sends the requirement;
s6, the camera shooting reset module processes the requirement, so that the camera shooting piece can correspondingly realize preview and take a picture;
s7, after the display service module receives the data streams of different image pickup pieces, integrating the data streams, and uniformly sending the integrated data streams to a display screen for display;
the interchange of the image pickup data resources comprises the following steps:
s101, a first application opens a first image pickup piece, and a data descriptor of the first image pickup piece copies the first image pickup piece and records the first image pickup piece as a first image pickup piece fd00;
s102, a second application opens a second image pickup piece, and the data descriptor of the second image pickup piece copies the second image pickup piece and records the second image pickup piece as a second image pickup piece fd11;
s103, the first image pickup piece fd00 and the second image pickup piece fd11 exchange data information with each other;
s104, after the exchange is completed, the first image pickup piece points to a first image pickup piece fd00, and the second image pickup piece points to a second image pickup piece fd11;
s105, respectively releasing resources occupied by the first image pickup piece and the second image pickup piece.
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