CN111510627B - Camera starting method and device, terminal and readable storage medium - Google Patents
Camera starting method and device, terminal and readable storage medium Download PDFInfo
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- CN111510627B CN111510627B CN202010325631.6A CN202010325631A CN111510627B CN 111510627 B CN111510627 B CN 111510627B CN 202010325631 A CN202010325631 A CN 202010325631A CN 111510627 B CN111510627 B CN 111510627B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/617—Upgrading or updating of programs or applications for camera control
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Abstract
The application provides a starting method of a camera. The starting method of the camera comprises the steps of initializing a node of the camera when a starting request of the camera is received; configuring the sub-equipment of the camera corresponding to the configuration information according to the configuration information of the node while creating the pipeline, wherein the sub-equipment comprises a camera serial interface; and outputting image data through the camera serial interface after the initialization of all the sub-devices is completed. In the starting method, the initialization of the pipeline and the sub-equipment is established and run in parallel, compared with the initialization of the pipeline and the sub-equipment, the time consumption accumulation is that the time consumption is only the time required by the initialization of the sub-equipment which consumes longer time, the time required by the pipeline establishment is reduced, and therefore the starting speed of the camera is improved. The application also provides a starting device, a terminal and a non-volatile computer readable storage medium.
Description
Technical Field
The present application relates to the field of consumer electronics technologies, and in particular, to a method for starting a camera, a starting apparatus, a terminal, and a non-volatile computer-readable storage medium.
Background
When the camera starts, the application layer can send a starting request, the hardware layer can configure all nodes after receiving the starting request, then the pipeline is established, the preparation work of the sub-equipment of the camera can be carried out according to the configuration information after the pipeline is established, the image output can be carried out at the moment after all the sub-equipment is prepared, and the starting speed of the camera is slower.
Disclosure of Invention
Embodiments of the present application provide a camera starting method, a camera starting apparatus, a terminal, and a non-volatile computer-readable storage medium.
The starting method of the camera comprises the steps of initializing a node of the camera when a starting request of the camera is received; configuring the sub-equipment of the camera corresponding to the configuration information according to the configuration information of the node while creating the pipeline, wherein the sub-equipment comprises a camera serial interface; and outputting image data through the camera serial interface after the initialization of all the sub-devices is completed.
In some embodiments, the initializing the node of the camera comprises: creating a node of a child device of the camera; initializing the node of the sub-equipment to remove the existing configuration information of the node of the sub-equipment; and writing configuration information of the nodes of the sub-equipment.
In some embodiments, the method of starting further comprises: and reordering all handles corresponding to the sub-devices in the pipeline according to the running sequence of the sub-devices.
In some embodiments, the method of starting further comprises: and after the initialization of all the sub-devices is completed and the reordering of all the handles in the pipeline is completed, outputting the image data or stopping outputting the image data.
In some embodiments, the sub-device includes an image sensor, an electrically erasable programmable read only memory, a driving motor, an optical anti-shake apparatus, and a flash, and the image sensor, the electrically erasable programmable read only memory, the driving motor, the optical anti-shake apparatus, and the flash are initialized at the same time.
The starting device of the embodiment of the application comprises a configuration module, a processing module and an output module. The configuration module is used for initializing a node of the camera when a starting request of the camera is received; the processing module is used for creating a pipeline and configuring the sub-equipment of the camera corresponding to the configuration information according to the configuration information of the node, wherein the sub-equipment comprises a camera serial interface; and the output module is used for outputting image data through the camera serial interface after the initialization of all the sub-devices is completed.
The terminal comprises a processor, a first storage unit and a second storage unit, wherein the processor is used for initializing a node of the camera when receiving a starting request of the camera; configuring the sub-equipment of the camera corresponding to the configuration information according to the configuration information of the node while creating the pipeline, wherein the sub-equipment comprises a camera serial interface; and outputting image data through the camera serial interface after the initialization of all the sub-devices is completed.
In some embodiments, the processor is further configured to: creating a node of a child device of the camera; initializing the node of the sub-equipment to remove the existing configuration information of the node of the sub-equipment; and writing configuration information of the nodes of the sub-equipment.
In some embodiments, the processor is further configured to: and reordering all handles corresponding to the sub-devices in the pipeline according to the running sequence of the sub-devices.
In some embodiments, the processor is further configured to: and after the initialization of all the sub-devices is completed and the reordering of all the handles in the pipeline is completed, outputting the image data or stopping outputting the image data.
In some embodiments, the sub-device includes an image sensor, an electrically erasable programmable read only memory, a driving motor, an optical anti-shake apparatus, and a flash, and the image sensor, the electrically erasable programmable read only memory, the driving motor, the optical anti-shake apparatus, and the flash are initialized at the same time.
A non-transitory computer-readable storage medium containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the boot method of any of the embodiments described above.
In the starting method, the starting device, the terminal and the nonvolatile computer readable storage medium of the camera, the pipeline creation and the sub-device initialization are performed in parallel, and compared with the pipeline creation and the sub-device initialization, time consumption accumulation is long, time consumption is only long time required by the initialization of the sub-device which consumes longer time, time required by the pipeline creation is reduced, and therefore the starting speed of the camera is increased.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a startup method according to certain embodiments of the present application;
FIG. 2 is a block schematic diagram of a starting device according to certain embodiments of the present application;
FIG. 3 is a schematic diagram of a terminal structure according to some embodiments of the present application;
FIG. 4 is a schematic diagram of a prior art camera startup flow framework;
FIG. 5 is a schematic diagram of a camera startup flow framework of a startup method of some embodiments of the present application;
FIG. 6 is a schematic flow chart of a startup method of certain embodiments of the present application;
FIG. 7 is a block diagram of a configuration module of certain embodiments of the present application;
FIG. 8 is a schematic flow chart of a startup method according to certain embodiments of the present application;
FIG. 9 is a block schematic diagram of an activation device according to certain embodiments of the present application; and
FIG. 10 is a schematic diagram of a connection between a processor and a computer-readable storage medium according to some embodiments of the present application.
Detailed Description
Embodiments of the present application will be further described below with reference to the accompanying drawings. The same or similar reference numbers in the drawings identify the same or similar elements or elements having the same or similar functionality throughout. In addition, the embodiments of the present application described below in conjunction with the accompanying drawings are exemplary and are only for the purpose of explaining the embodiments of the present application, and are not to be construed as limiting the present application.
Referring to fig. 1 to 3, a method for starting a camera 30 according to an embodiment of the present disclosure includes the following steps:
011: initializing a node of the camera 30 upon receiving a start-up request of the camera 30;
012: configuring the sub-device of the camera 30 corresponding to the configuration information according to the configuration information of the node while creating the pipeline, wherein the sub-device comprises a camera serial interface; and
013: and after the initialization of all the sub-devices is completed, outputting the image data through the camera serial interface.
In some embodiments, the activation device 10 includes a configuration module 11, a processing module 12, and an output module 13. The configuration module 11, the processing module 12 and the output module 13 are configured to perform step 011, step 012 and step 013, respectively. That is, the configuration module 11 is configured to initialize a node of the camera 30 upon receiving a start request of the camera 30; the processing module 12 is configured to configure a sub-device of the camera 30 corresponding to the configuration information according to the configuration information of the node while creating the pipeline; the output module 13 is configured to output image data through the camera serial interface after initialization of all the sub-devices is completed.
In some embodiments, the terminal 100 further comprises a processor 20, the processor 20 being configured to initialize a node of the camera 30 upon receiving a start-up request of the camera 30; configuring the sub-device of the camera 30 corresponding to the configuration information according to the configuration information of the node while creating the pipeline; and after the initialization of all the sub-devices is completed, outputting the image data through the camera serial interface. That is, step 011, step 012, and step 013 can be implemented by processor 20.
Specifically, the terminal 100 includes a housing 40 and a processor 20. The processor 20 is mounted within the housing 40. More specifically, the terminal 100 may be a mobile phone, a tablet computer, a display, a notebook computer, a teller machine, a gate, a smart watch, a head-up display device, a game machine, and the like. In the embodiment of the present application, the terminal 100 is a mobile phone as an example, and it is understood that the specific form of the terminal 100 is not limited to the mobile phone. The housing 40 may also be used to mount functional modules of the terminal 100, such as an imaging device (i.e., the camera 30), a power supply device, a communication device, etc., so that the housing 40 provides protection for the functional modules against dust, falling, water, etc.
A camera application is generally provided on the terminal 100 (such as a mobile phone), or the terminal 100 is provided with a camera start key, a start request of the camera 30 can be sent by clicking the camera application or pressing the camera start key, the processor 20 configures all nodes in the start process of the camera 30 after receiving the start request of the camera 30, it can be understood that the camera application realizes the functions of the camera 30 by depending on the relevant hardware of the camera 30 on the terminal 100, in the start process, the camera application configures the nodes on the application layer of the camera 30, and then the camera 30 realizes the configuration of the hardware thereof according to the configuration information of the nodes. The processor 20 generally writes configuration information into the node of the camera 30 according to a requirement, for example, when the camera 30 is started to obtain a preview image, the initialized configuration information corresponding to "start to obtain the preview image" is obtained first, and the processor 20 can perform initialization according to the initialized configuration information. Depending on the number of the sub-devices of the camera 30, the processor 20 configures a corresponding number of nodes, for example, the sub-devices of the camera 30 include an image sensor, an eeprom, a driving motor, an optical anti-shake device, and a flash, and then configures a corresponding node (i.e., an image sensor node, an eeprom node, a driving motor node, an optical anti-shake device node, and a flash node) for each sub-device and writes corresponding initialized configuration information. In this manner, the processor 20 may implement initialization of the corresponding sub-device according to the initialized configuration information of each node.
After the camera application completes the configuration of the nodes on the application layer of the camera 30, the processor 20 may create a pipeline (pipeline), which refers to a general term for implementing a certain camera function, for example, a whole set of pipeline processes that are started to acquire preview image data, and simultaneously configure the sub-devices corresponding to the configuration information according to the configuration information of the nodes.
Fig. 4 and 5 show a conventional camera startup flow framework and the camera startup flow framework of the present application, respectively. It can be seen that, when receiving a camera start request, the existing camera start process framework first configures a data stream (configurestream), where the configured data stream includes configuration nodes and pipeline creation, and after the configured data stream is completed, outputs the data stream, and at this time, the sub-device needs to be initialized first, and after the initialization of the sub-device is completed, image data can be output, and the existing camera start process framework is operated serially. Compared with the establishment of the pipeline and the initialization serial operation of the sub-equipment, the establishment of the pipeline and the initialization parallel operation of the sub-equipment only consume time required by the larger one of the establishment of the pipeline and the initialization of the sub-equipment, and the time required by the initialization of the sub-equipment is generally longer than that required by the establishment of the pipeline, so that the time required by the establishment of the pipeline and the initialization of the sub-equipment is the time required by the initialization of the sub-equipment, and the time required by the establishment of the pipeline is saved.
And because the time length required by the initialization of the sub-devices is generally longer than the time length required by the creation of the pipeline, the creation of the pipeline can be judged to be completed only by judging that all the sub-devices are initialized, and after the creation of the pipeline and the initialization of the sub-devices are completed, the image data of the image Sensor can be continuously output, for example, the image data is output into Mobile Industry Processor Interface (MIPI) image data through a camera serial Interface (CMOS Sensor Interface, CSI). The processor 20 may display the preview image on the display screen based on the image data.
In the starting method of the camera 30, the starting apparatus 10 and the terminal 100 of the present application, the creation of the pipeline and the initialization of the sub-device are performed in parallel, and compared with the creation of the pipeline and the initialization of the sub-device performed in series, the time consumption is only the time length required for the initialization of the sub-device which consumes a long time, and the time length required for creating the pipeline is reduced, so that the starting speed of the camera 30 is increased.
Referring to fig. 3, 6 and 7, in some embodiments, step 011 includes the steps of:
0111: create a node of a child device of the camera 30;
0112: initializing the node of the sub-equipment to remove the existing configuration information of the node of the sub-equipment; and
0113: and writing configuration information of the nodes of the sub-equipment.
In some embodiments, the configuration module 11 includes a creation unit 111, an initialization unit 112, and a writing unit 113. The creation unit 111, the initialization unit 112, and the writing unit 113 are used to perform step 0111, step 0112, and step 0113, respectively. That is, the creation unit 111 is used to create nodes of child devices of the camera 30; the initialization unit 112 is configured to perform an initialization operation on the node of the child device to clear the existing configuration information of the node of the child device; the writing unit 113 is used to write configuration information of the nodes of the sub-device.
In some embodiments, the processor 20 is configured to create a node of a child device of the camera 30; initializing the node of the child equipment; and writing the configuration information of the node of the sub-equipment to clear the existing configuration information of the node of the sub-equipment. That is, step 0111, step 0112, and step 0113 may be implemented by processor 20.
Specifically, when configuring the nodes, the processor 20 first creates nodes of the sub-devices that match the types of the sub-devices (for example, creates an image sensor node, an optical anti-shake device node, a flash light node, and the like, and the image sensor node is taken as an example below), and then performs an initialization operation on the image sensor node, where the initialization operation may restore the image sensor node to an initial state to remove the existing configuration information of the nodes of the sub-devices because other configuration information may have been written into the image sensor node according to different requirements. Finally, the processor 20 writes the corresponding configuration information into the register corresponding to the image sensor node that has recovered the initial state according to the requirement (e.g., the requirement to start to acquire the preview image).
Referring to fig. 2, 8 and 9, in some embodiments, the booting method further includes the following steps:
014: and reordering all handles corresponding to the sub-devices in the pipeline according to the running sequence of the sub-devices.
In some embodiments, the initiator device 10 includes a sequencing module 14. The sequencing module 14 is configured to perform step 014. That is, the sorting module 14 is configured to reorder all handles in the pipeline corresponding to the child devices according to the running order of the child devices.
In some embodiments, the processor 20 is further configured to reorder all handles in the pipeline corresponding to the child devices in the order in which the child devices are run. That is, step 014 may be implemented by processor 20.
Specifically, the sub-devices are initialized while the pipeline is created, a corresponding handle (handle) is generated after initialization of each sub-device is completed, and the processor 20 sequentially links the handles of the initialized sub-devices, however, because the initialization time lengths of different sub-devices are different, when the initialization time of the sub-devices is short but the sequence of the handles in the pipeline flow is later, or when the initialization time of the sub-devices is long but the sequence of the handles in the pipeline flow is earlier, the sequence of the handles in the pipeline flow is disordered, so that the pipeline flow cannot normally run to implement the function of the camera. For example, the initialization time of the image sensor is the longest, when all the sub-devices are initialized at the same time, the initialization of the image sensor is completed only at the last, but the sequence of the handles of the image sensor in the pipeline flow may not be at the last, which may cause the sequence of the handles corresponding to the image sensor in the pipeline to be disordered, and in order to enable the pipeline flow to operate normally, the processor 20 reorders the handles of the sub-devices according to the normal operation sequence of the sub-devices, so that the sequence of the handles in the pipeline flow is normal, thereby ensuring that the functions of starting the camera 30 and acquiring the preview image can be implemented normally.
Referring to fig. 2, 8 and 9, in some embodiments, the booting method further includes the following steps:
015: and outputting the image data or stopping outputting the image data after the initialization of all the sub-devices is completed and the reordering of all the handles in the pipeline is completed.
In certain embodiments, the activation device 10 further includes a control module 15. The control module 15 is configured to perform step 015. That is, the control module 15 is configured to output the image data or stop outputting the image data after the initialization of all the sub-devices is completed and the reordering of all the handles in the pipeline is completed.
In some embodiments, the processor 20 is further configured to output the image data or stop outputting the image data after the initialization of all the sub-devices is completed and the reordering of all the handles in the pipeline is completed. That is, step 015 may be implemented by processor 20.
Specifically, in order to prevent the application program from being abnormally operated, the application program is generally not allowed to stop and exit in the operation process, for example, in the process of starting the camera 30, the camera 30 can be flashed back in advance and the operation of the start preparation work of the camera 30 is not affected, the application program can detect whether all handles in the pipeline are reordered and completed (hereinafter referred to as condition 1) and whether all the sub-devices are initialized (hereinafter referred to as condition 2) through a state machine, and in the case that the results of the condition 1 and the condition 2 are both "yes", the normal establishment of the pipeline flow and the normal initialization of all the sub-devices can be ensured, at this time, even if the flashing back is performed when the preview image is not displayed on the display screen, the start of the camera 30 cannot be abnormally started, and if any one of the results of the condition 1 and the condition 2 is "no", may cause an abnormal start-up of the camera 30 and even damage to the camera 30. Therefore, the state detection is realized through the state machine, the image data output is executed or stopped after the initialization of all the sub-devices is completed and the reordering of all the handles in the pipeline is completed, the flash back is performed when the preview image is not displayed on the display screen, the starting of the camera 30 is ensured not to be abnormal, and the preview image can be displayed without re-preparing the camera 30 when the camera 30 is opened again.
Referring to fig. 2, in some embodiments, the sub-device includes an image sensor, an eeprom, a driving motor, an optical anti-shake apparatus, and a flash, and the image sensor, the eeprom, the driving motor, the optical anti-shake apparatus, and the flash are initialized at the same time.
Specifically, in the sub-device, the time required for initializing the image sensor is longest, and the image sensor, the eeprom, the driving motor, the optical anti-shake apparatus, and the flash lamp are initialized at the same time, and in the initialization process of the sub-device, the processor 20 may restore the sub-device to a predetermined state (for example, a factory state or a state set in configuration information) according to the configuration information in the node of the sub-device, so as to ensure that the sub-device can operate normally. The time consumed for initializing all the sub-devices is only the time consumed by the sub-device with the longest time consumption (i.e., the time required for initializing the image sensor), so that the time required for initializing the sub-devices is further shortened, and the starting efficiency of the camera 30 is improved.
Referring to fig. 2 and 10, one or more non-transitory computer-readable storage media 300 containing computer-executable instructions 302 according to embodiments of the present application, when the computer-executable instructions 302 are executed by one or more processors 20, cause the processors 20 to perform the boot method according to any of the embodiments.
For example, referring to fig. 1 and 3 in conjunction, the computer-executable instructions 302, when executed by the one or more processors 20, cause the processors 20 to perform the steps of:
011: configuring a node of the camera 30 upon receiving a start-up request of the camera 30;
012: configuring the sub-device of the camera 30 corresponding to the configuration information according to the configuration information of the node while creating the pipeline; and
013: and outputting the image data after the initialization of all the sub-devices is completed.
As another example, referring to fig. 3 and 6 in conjunction, when the computer-executable instructions 302 are executed by one or more processors 20, the processors 20 may further perform the steps of:
0111: creating a node of the child device;
0112: initializing the node of the child equipment; and
0113: and writing configuration information of the nodes of the sub-equipment.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
Although embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present application, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A method for starting a camera, comprising:
initializing a node of the camera upon receiving a start-up request of the camera;
configuring the sub-equipment of the camera corresponding to the configuration information according to the configuration information of the node while creating the pipeline, wherein the sub-equipment comprises a camera serial interface; and
after the initialization of all the sub-devices is completed, outputting image data through the camera serial interface;
and reordering all handles corresponding to the sub-devices in the pipeline according to the running sequence of the sub-devices.
2. A method as recited in claim 1, wherein initializing the node of the camera comprises:
creating a node of a child device of the camera;
initializing the node of the sub-equipment to remove the existing configuration information of the node of the sub-equipment; and
and writing configuration information of the nodes of the sub-equipment.
3. The startup method according to claim 1, characterized in that the startup method further comprises:
and after the initialization of all the sub-devices is completed and the reordering of all the handles in the pipeline is completed, outputting the image data or stopping outputting the image data.
4. The method according to claim 1, wherein the sub-device comprises an image sensor, an electrically erasable programmable read only memory, a driving motor, an optical anti-shake apparatus, and a flash, and the image sensor, the electrically erasable programmable read only memory, the driving motor, the optical anti-shake apparatus, and the flash are initialized at the same time.
5. An activation apparatus of a camera, comprising:
a configuration module, configured to initialize a node of the camera when receiving a start request of the camera;
the processing module is used for creating a pipeline and configuring the sub-equipment of the camera corresponding to the configuration information according to the configuration information of the node, wherein the sub-equipment comprises a camera serial interface;
the output module is used for outputting image data through the camera serial interface after the initialization of all the sub-devices is completed;
and the sorting module is used for re-sorting all handles corresponding to the sub-devices in the pipeline according to the running sequence of the sub-devices.
6. A terminal, characterized in that the terminal comprises a processor configured to:
initializing a node of a camera upon receiving a start request of the camera;
configuring the sub-equipment of the camera corresponding to the configuration information according to the configuration information of the node while creating the pipeline, wherein the sub-equipment comprises a camera serial interface; and
after the initialization of all the sub-devices is completed, outputting image data through the camera serial interface;
and reordering all handles corresponding to the sub-devices in the pipeline according to the running sequence of the sub-devices.
7. The terminal of claim 6, wherein the processor is further configured to:
creating a node of a child device of the camera;
initializing the node of the sub-equipment to remove the existing configuration information of the node of the sub-equipment; and
and writing configuration information of the nodes of the sub-equipment.
8. The terminal of claim 6, wherein the processor is further configured to:
and after the initialization of all the sub-devices is completed and the reordering of all the handles in the pipeline is completed, outputting the image data or stopping outputting the image data.
9. The terminal according to claim 6, wherein the sub-device comprises an image sensor, an electrically erasable programmable read only memory, a driving motor, an optical anti-shake device, and a flash, and the image sensor, the electrically erasable programmable read only memory, the driving motor, the optical anti-shake device, and the flash are initialized at the same time.
10. A non-transitory computer-readable storage medium containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the boot method of any of claims 1 to 4.
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