Camera

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The Camera provides functions for camera devices.

Required Header

#include <hal-camera.h>

Overview

The camera devices have various specifications, so it's hard to control them using single code. The camera HAL provides common abstraction interfaces to control camera devices which are different.

The Camera HAL allows creation of components required in taking pictures including:

• getting camera device capabilities.(format, resolution and fps)
• selecting proper parameters of picture.(exposure, iso, zoom, effect, format and so on)
• operating focus(auto or manual)

State Diagram

State Transitions

FUNCTION	PRE-STATE	POST-STATE	SYNC TYPE
hal_camera_init()	N/A	INITIALIZED	SYNC
hal_camera_deinit()	INITIALIZED	N/A	SYNC
hal_camera_open_device()	INITIALIZED	OPENED	SYNC
hal_camera_close_device()	OPENED	INITIALIZED	SYNC
hal_camera_start_preview()	OPENED	PREVIEWING	SYNC
hal_camera_stop_preview()	PREVIEWING	OPENED	SYNC
hal_camera_start_capture()	PREVIEWING	CAPTURING	SYNC
hal_camera_stop_capture()	CAPTURING	PREVIEWING	SYNC
hal_camera_start_record()	PREVIEWING	RECORDING	SYNC
hal_camera_stop_record()	RECORDING	PREVIEWING	SYNC
hal_camera_start_capture()	RECORDING	RECORDING_SNAPSHOT	SYNC
hal_camera_stop_capture()	RECORDING_SNAPSHOT	RECORDING	SYNC

For more information on the Camera features and the macros, see HAL Camera programming guides and tutorials.

Typedefs
typedef enum camera_error	camera_error_e
	Enumeration for the camera error.
typedef enum camera_state	camera_state_e
	Enumeration for the camera state.
typedef enum camera_network_state	camera_network_state_e
	Enumeration for the camera network state.
typedef struct camera_resolution	camera_resolution_s
	The structure type of the resolution.
typedef struct camera_fraction	camera_fraction_s
	The structure type of the fraction.
typedef struct camera_rectangle	camera_rectangle_s
	The structure type of the rectangle.
typedef enum camera_pixel_format	camera_pixel_format_e
	Enumeration for the camera pixel format.
typedef enum camera_focus_state	camera_focus_state_e
	Enumeration for the focus state.
typedef enum camera_facing_direction	camera_facing_direction_e
	Enumeration for the facing direction of camera device.
typedef enum camera_rotation	camera_rotation_e
	Enumeration for the camera rotation.
typedef enum camera_status_auto_exposure	camera_status_auto_exposure_e
	Enumeration for the auto exposure status.
typedef enum camera_status_auto_white_balance	camera_status_auto_white_balance_e
	Enumeration for the auto white balance status.
typedef enum camera_flip	camera_flip_e
	Enumeration for the camera flip.
typedef struct camera_plane	camera_plane_s
	The structure type of the camera plane.
typedef struct camera_buffer	camera_buffer_s
	The structure type of the camera buffer.
typedef struct camera_metadata	camera_metadata_s
	The structure type of the camera metadata.
typedef struct camera_format	camera_format_s
	The structure type of the camera format.
typedef enum camera_focus_mode	camera_focus_mode_e
	Enumeration for the focus mode.
typedef enum camera_focus_range	camera_focus_range_e
	Enumeration for the focus range.
typedef enum camera_white_balance	camera_white_balance_e
	Enumeration for the white balance.
typedef enum camera_effect	camera_effect_e
	Enumeration for the effect.
typedef enum camera_scene_mode	camera_scene_mode_e
	Enumeration for the scene mode.
typedef enum camera_exposure_mode	camera_exposure_mode_e
	Enumeration for the exposure mode.
typedef enum camera_shot_mode	camera_shot_mode_e
	Enumeration for the shot mode.
typedef enum camera_flash_mode	camera_flash_mode_e
	Enumeration for the flash mode.
typedef enum camera_face_detection	camera_face_detection_e
	Enumeration for the face detection.
typedef enum camera_ptz_type	camera_ptz_type_e
	Enumeration for the PTZ(Pan Tilt Zoom) type.
typedef enum camera_command	camera_command_e
	Enumeration for the camera command.
typedef struct camera_batch_command_control	camera_batch_command_control_s
	The structure type of batch command.
typedef struct camera_pixel_format_list	camera_format_list_s
	The structure type of the format list.
typedef struct camera_resolution_list	camera_resolution_list_s
	The structure type of the resolution list.
typedef struct camera_fps_list	camera_fps_list_s
	The structure type of the fps list.
typedef struct camera_device_info	camera_device_info_s
	The structure type of the camera device information.
typedef struct camera_device_info_list	camera_device_info_list_s
	The structure type of the camera device information list.
typedef struct camera_device_capability_resolution	camera_device_capability_resolution_s
	The structure type of the camera device capability resolution.
typedef struct camera_device_capability_format	camera_device_capability_format_s
	The structure type of the camera device capability format.
typedef struct camera_device_capability	camera_device_capability_s
	The structure type of the camera device capability.
typedef struct camera_device_capability_list	camera_device_capability_list_s
	The structure type of the camera device capability list.
typedef enum camera_message_type	camera_message_type_e
	Enumeration for the camera message type.
typedef struct camera_message	camera_message_s
	The structure type of the camera message.
typedef int(*	hal_camera_message_cb )(camera_message_s *message, void *user_data)
	Callback function for notification from camera HAL.
typedef int(*	hal_camera_preview_frame_cb )(camera_buffer_s *buffer, camera_metadata_s *meta, void *user_data)
	Callback function for captured preview frame from camera device.
typedef int(*	hal_camera_extra_preview_frame_cb )(camera_buffer_s *buffer, camera_metadata_s *meta, int stream_id, void *user_data)
	Callback function for extra preview frame from camera device.
typedef int(*	hal_camera_video_frame_cb )(camera_buffer_s *buffer, camera_metadata_s *meta, void *user_data)
	Callback function for captured video buffer from camera device.
typedef int(*	hal_camera_capture_cb )(camera_buffer_s *main, camera_buffer_s *postview, camera_buffer_s *thumbnail, void *user_data)
	Callback function for captured still image from camera device.
typedef struct _hal_backend_media_camera_funcs	hal_backend_camera_funcs
	The structure type of the camera HAL functions.
Defines
#define	BUFFER_PLANE_MAX   4
	The maximum number of planes in buffer.
#define	DEVICE_COUNT_MAX   16
	The maximum number of device count.
#define	RESOLUTION_COUNT_MAX   32
	The maximum number of resolution count.
#define	FPS_COUNT_MAX   16
	The maximum number of FPS count.
#define	DEVICE_NAME_LENGTH_MAX   16
	The maximum length of device name.
#define	DEVICE_NODE_PATH_LENGTH_MAX   16
	The maximum length of device node path.

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Data Structure Documentation

struct camera_resolution

The structure type of the resolution.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
uint32_t	width
uint32_t	height

---

Field Documentation

uint32_t camera_resolution::height

The height of resolution

uint32_t camera_resolution::width

The width of resolution

struct camera_fraction

The structure type of the fraction.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
int	numerator
int	denominator

---

Field Documentation

int camera_fraction::denominator

The denominator of fraction

int camera_fraction::numerator

The numerator of fraction

struct camera_rectangle

The structure type of the rectangle.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
int	x
int	y
uint32_t	width
uint32_t	height

---

Field Documentation

uint32_t camera_rectangle::height

The height of rectangle

uint32_t camera_rectangle::width

The width of rectangle

int camera_rectangle::x

The x coordinate of rectangle

int camera_rectangle::y

The y coordinate of rectangle

struct camera_plane

The structure type of the camera plane.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
unsigned char *	data
uint32_t	align_width
uint32_t	align_height
uint32_t	size
uint32_t	bytesused

---

Field Documentation

uint32_t camera_plane::align_height

The aligned height of plane

uint32_t camera_plane::align_width

The aligned width of plane

uint32_t camera_plane::bytesused

The number of bytes occupied by data

unsigned char* camera_plane::data

The data pointer of plane

uint32_t camera_plane::size

The size of plane

struct camera_buffer

The structure type of the camera buffer.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
int	index
camera_pixel_format_e	format
camera_resolution_s	resolution
uint32_t	total_size
uint32_t	num_planes
camera_plane_s	planes [4]
uint32_t	num_bos
void *	bos [4]

---

Field Documentation

void* camera_buffer::bos[4]

The bo(buffer object for TBM) array

camera_pixel_format_e camera_buffer::format

The format of buffer

int camera_buffer::index

The index of buffer

uint32_t camera_buffer::num_bos

The number of bo(buffer object for TBM)

uint32_t camera_buffer::num_planes

The number of planes in buffer

camera_plane_s camera_buffer::planes[4]

The planes of buffer

camera_resolution_s camera_buffer::resolution

The resolution of buffer

uint32_t camera_buffer::total_size

The total size of buffer

struct camera_metadata

The structure type of the camera metadata.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
int	is_flashed
camera_fraction_s	focal_length
camera_fraction_s	aperture_f_number
camera_fraction_s	shutter_speed
camera_fraction_s	exposure_time
camera_fraction_s	brightness
camera_resolution_s	exif_image
int	iso
int	metering_mode
int	color_space
int	component_configuration
int	aperture_in_apex
int	is_delta_frame
camera_focus_state_e	focus_state
camera_facing_direction_e	facing_direction
camera_flip_e	flip
camera_rotation_e	rotation
camera_status_auto_exposure_e	status_ae
camera_status_auto_white_balance_e	status_awb

---

Field Documentation

camera_fraction_s camera_metadata::aperture_f_number

The F-number for aperture

int camera_metadata::aperture_in_apex

The APEX for aperture

camera_fraction_s camera_metadata::brightness

The brightness

int camera_metadata::color_space

The color space

int camera_metadata::component_configuration

The component configuration

camera_resolution_s camera_metadata::exif_image

The resolution of EXIF image

camera_fraction_s camera_metadata::exposure_time

The exposure time

camera_facing_direction_e camera_metadata::facing_direction

The face direction

camera_flip_e camera_metadata::flip

The flip

camera_fraction_s camera_metadata::focal_length

The focal length

camera_focus_state_e camera_metadata::focus_state

The focus state

int camera_metadata::is_delta_frame

The flag which indicates whether it's delta frame or not

int camera_metadata::is_flashed

The flag which indicates whether it's flashed or not

int camera_metadata::iso

The ISO

int camera_metadata::metering_mode

The metering mode

camera_rotation_e camera_metadata::rotation

The rotation

camera_fraction_s camera_metadata::shutter_speed

The shutter speed

camera_status_auto_exposure_e camera_metadata::status_ae

The status for auto exposure

camera_status_auto_white_balance_e camera_metadata::status_awb

The status for auto white balance

struct camera_format

The structure type of the camera format.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
camera_pixel_format_e	stream_format
camera_resolution_s	stream_resolution
uint32_t	stream_fps
camera_rotation_e	stream_rotation
camera_pixel_format_e	capture_format
camera_resolution_s	capture_resolution
uint32_t	capture_quality
uint32_t	stream_bitrate

---

Field Documentation

camera_pixel_format_e camera_format::capture_format

The format of capture stream

uint32_t camera_format::capture_quality

The quality of captured image

camera_resolution_s camera_format::capture_resolution

The resolution of capture stream

uint32_t camera_format::stream_bitrate

The bitrate of stream

camera_pixel_format_e camera_format::stream_format

The format of stream

uint32_t camera_format::stream_fps

The FPS of stream

camera_resolution_s camera_format::stream_resolution

The resolution of stream

camera_rotation_e camera_format::stream_rotation

The rotation of stream

struct camera_batch_command_control

The structure type of batch command.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
uint64_t	command_set_flag
camera_white_balance_e	white_balance
int	iso
int	contrast
int	saturation
int	hue
int	sharpness
camera_effect_e	effect
camera_scene_mode_e	scene_mode
camera_exposure_mode_e	exposure_mode
int	exposure
camera_rotation_e	rotation
camera_flip_e	flip
camera_focus_mode_e	focus_mode
camera_focus_range_e	focus_range
camera_exposure_mode_e	shot_mode
int	anti_shake
camera_rectangle_s	focus_area
int	digital_zoom
int	optical_zoom
int	recording_hint
int	wdr
camera_fraction_s	shutter_speed
camera_flash_mode_e	flash_mode
camera_face_detection_e	face_detection
int	bitrate
int	ptz_type
int	pan
int	tilt
int	brightness
int	gop_interval
int	capture_count
int	capture_interval
int	flash_brightness
int	focus_level

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Field Documentation

int camera_batch_command_control::anti_shake

value for anti shake

int camera_batch_command_control::bitrate

value for bitrate

int camera_batch_command_control::brightness

value for brightness

int camera_batch_command_control::capture_count

value for capture count of continuous capture

int camera_batch_command_control::capture_interval

value for capture interval of continuous capture

uint64_t camera_batch_command_control::command_set_flag

flag for updating commands

int camera_batch_command_control::contrast

value for contrast

int camera_batch_command_control::digital_zoom

value for digital zoom

camera_effect_e camera_batch_command_control::effect

value for effect

int camera_batch_command_control::exposure

value for exposure

camera_exposure_mode_e camera_batch_command_control::exposure_mode

value for exposure mode

camera_face_detection_e camera_batch_command_control::face_detection

value for face detection

int camera_batch_command_control::flash_brightness

value for brightness of flash

camera_flash_mode_e camera_batch_command_control::flash_mode

value for flash mode

camera_flip_e camera_batch_command_control::flip

value for flip

camera_rectangle_s camera_batch_command_control::focus_area

value for focus area

int camera_batch_command_control::focus_level

value for level of manual focus

camera_focus_mode_e camera_batch_command_control::focus_mode

value for focus mode

camera_focus_range_e camera_batch_command_control::focus_range

value for focus range

int camera_batch_command_control::gop_interval

value for GOP(Group Of Pictures) interval

int camera_batch_command_control::hue

value for hue

int camera_batch_command_control::iso

value for ISO

int camera_batch_command_control::optical_zoom

value for optical zoom

int camera_batch_command_control::pan

value for pan

int camera_batch_command_control::ptz_type

value for PTZ(Pan Tilt Zoom) type

int camera_batch_command_control::recording_hint

value for recording hint

camera_rotation_e camera_batch_command_control::rotation

value for rotation

int camera_batch_command_control::saturation

value for saturation

camera_scene_mode_e camera_batch_command_control::scene_mode

value for scene mode

int camera_batch_command_control::sharpness

value for sharpness

camera_exposure_mode_e camera_batch_command_control::shot_mode

value for shot mode

camera_fraction_s camera_batch_command_control::shutter_speed

value for shutter speed

int camera_batch_command_control::tilt

value for tilt

int camera_batch_command_control::wdr

value for WDR(Wide Dynamic Range)

camera_white_balance_e camera_batch_command_control::white_balance

value for white balance

struct camera_pixel_format_list

The structure type of the format list.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
uint32_t	count
camera_pixel_format_e	formats [CAMERA_PIXEL_FORMAT_MAX]

---

Field Documentation

uint32_t camera_pixel_format_list::count

The count of format

camera_pixel_format_e camera_pixel_format_list::formats[CAMERA_PIXEL_FORMAT_MAX]

The format list

struct camera_resolution_list

The structure type of the resolution list.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
uint32_t	count
camera_resolution_s	resolutions [32]

---

Field Documentation

uint32_t camera_resolution_list::count

The count of resolution

camera_resolution_s camera_resolution_list::resolutions[32]

The resolution list

struct camera_fps_list

The structure type of the fps list.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
uint32_t	count
int	fps [16]

---

Field Documentation

uint32_t camera_fps_list::count

The count of FPS

int camera_fps_list::fps[16]

The FPS list

struct camera_device_info

The structure type of the camera device information.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
uint32_t	index
char	name [16]
char	node_path [16]
camera_facing_direction_e	facing_direction
camera_format_list_s	format_list
camera_resolution_list_s	preview_list
camera_resolution_list_s	capture_list
camera_resolution_list_s	video_list
camera_fps_list_s	preview_fps_list [32]
camera_fps_list_s	video_fps_list [32]

---

Field Documentation

camera_resolution_list_s camera_device_info::capture_list

The supported capture resolution list of device

camera_facing_direction_e camera_device_info::facing_direction

The facing direction of device

camera_format_list_s camera_device_info::format_list

The supported format list of device

uint32_t camera_device_info::index

The index of device

char camera_device_info::name[16]

The name of device

char camera_device_info::node_path[16]

The node path of device

camera_fps_list_s camera_device_info::preview_fps_list[32]

The supported preview FPS list of device

camera_resolution_list_s camera_device_info::preview_list

The supported preview resolution list of device

camera_fps_list_s camera_device_info::video_fps_list[32]

The supported video FPS list of device

camera_resolution_list_s camera_device_info::video_list

The supported video resolution list of device

struct camera_device_info_list

The structure type of the camera device information list.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
uint32_t	count
camera_device_info_s	device_info [16]

---

Field Documentation

uint32_t camera_device_info_list::count

The count of devices

camera_device_info_s camera_device_info_list::device_info[16]

The device list

struct camera_device_capability_resolution

The structure type of the camera device capability resolution.

Since:

HAL_MODULE_CAMERA 1.1

Data Fields
uint32_t	width
uint32_t	height
int	default_fps_index
camera_fps_list_s	fps_list

---

Field Documentation

int camera_device_capability_resolution::default_fps_index

The default index of FPS list

camera_fps_list_s camera_device_capability_resolution::fps_list

The supported FPS list with width and height

uint32_t camera_device_capability_resolution::height

The height of resolution

uint32_t camera_device_capability_resolution::width

The width of resolution

struct camera_device_capability_format

The structure type of the camera device capability format.

Since:

HAL_MODULE_CAMERA 1.1

Data Fields
camera_pixel_format_e	pixel_format
uint32_t	resolution_count
int	default_resolution_index
camera_device_capability_resolution_s *	resolution [32]

---

Field Documentation

int camera_device_capability_format::default_resolution_index

The default index of capability resolution list

camera_pixel_format_e camera_device_capability_format::pixel_format

The pixel format

camera_device_capability_resolution_s* camera_device_capability_format::resolution[32]

The supported capability resolution list with pixel_format

uint32_t camera_device_capability_format::resolution_count

The supported capability resolution count

struct camera_device_capability

The structure type of the camera device capability.

Since:

HAL_MODULE_CAMERA 1.1

Data Fields
int	device_index
uint32_t	format_count
int	default_format_index
camera_device_capability_format_s *	format [CAMERA_PIXEL_FORMAT_MAX]

---

Field Documentation

int camera_device_capability::default_format_index

The default index of supported format list

int camera_device_capability::device_index

The index of device

camera_device_capability_format_s* camera_device_capability::format[CAMERA_PIXEL_FORMAT_MAX]

The supported capability format list with device_index

uint32_t camera_device_capability::format_count

The count of supported format

struct camera_device_capability_list

The structure type of the camera device capability list.

Since:

HAL_MODULE_CAMERA 1.1

Data Fields
uint32_t	device_count
camera_device_capability_s *	capability [16]

---

Field Documentation

camera_device_capability_s* camera_device_capability_list::capability[16]

The device capability list

uint32_t camera_device_capability_list::device_count

The count of devices

struct camera_message

The structure type of the camera message.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
camera_message_type_e	type
camera_focus_state_e	focus_state
uint32_t	hdr_progress
camera_error_e	error_code
camera_network_state_e	network_state

---

Field Documentation

camera_error_e camera_message::error_code

The error code

camera_focus_state_e camera_message::focus_state

The state of focus

uint32_t camera_message::hdr_progress

The progress of HDR

camera_network_state_e camera_message::network_state

The state of network camera

camera_message_type_e camera_message::type

The type of message

struct _hal_backend_media_camera_funcs

The structure type of the camera HAL functions.

Since:

HAL_MODULE_CAMERA 1.0

Data Fields
int(*	init )(void **camera_handle)
int(*	deinit )(void *camera_handle)
int(*	get_device_info_list )(camera_device_info_list_s *device_info_list)
int(*	open_device )(void *camera_handle, int device_index)
int(*	open_device_ext )(void *camera_handle, const char *device_name)
int(*	close_device )(void *camera_handle)
int(*	add_message_callback )(void *camera_handle, hal_camera_message_cb callback, void *user_data, uint32_t *cb_id)
int(*	remove_message_callback )(void *camera_handle, uint32_t cb_id)
int(*	set_preview_stream_format )(void *camera_handle, camera_format_s *format)
int(*	get_preview_stream_format )(void *camera_handle, camera_format_s *format)
int(*	set_user_buffer_fd )(void *camera_handle, int *fds, int number)
int(*	start_preview )(void *camera_handle, hal_camera_preview_frame_cb callback, void *user_data)
int(*	release_preview_buffer )(void *camera_handle, int buffer_index)
int(*	stop_preview )(void *camera_handle)
int(*	start_auto_focus )(void *camera_handle)
int(*	stop_auto_focus )(void *camera_handle)
int(*	start_capture )(void *camera_handle, hal_camera_capture_cb callback, void *user_data)
int(*	stop_capture )(void *camera_handle)
int(*	set_video_stream_format )(void *camera_handle, camera_format_s *format)
int(*	get_video_stream_format )(void *camera_handle, camera_format_s *format)
int(*	start_record )(void *camera_handle, hal_camera_video_frame_cb callback, void *user_data)
int(*	release_video_buffer )(void *camera_handle, int buffer_index)
int(*	stop_record )(void *camera_handle)
int(*	set_command )(void *camera_handle, camera_command_e command, void *value)
int(*	get_command )(void *camera_handle, camera_command_e command, void **value)
int(*	set_batch_command )(void *camera_handle, camera_batch_command_control_s *batch_command, uint64_t *error_command)
int(*	set_extra_preview_frame_cb )(void *camera_handle, hal_camera_extra_preview_frame_cb callback, void *user_data)
int(*	unset_extra_preview_frame_cb )(void *camera_handle)
int(*	release_extra_preview_buffer )(void *camera_handle, int stream_id, int buffer_index)
int(*	set_extra_preview_stream_format )(void *camera_handle, int stream_id, camera_format_s *format)
int(*	get_extra_preview_stream_format )(void *camera_handle, int stream_id, camera_format_s *format)
int(*	set_extra_preview_bitrate )(void *camera_handle, int stream_id, int bitrate)
int(*	get_extra_preview_bitrate )(void *camera_handle, int stream_id, int *bitrate)
int(*	set_extra_preview_gop_interval )(void *camera_handle, int stream_id, int interval)
int(*	get_extra_preview_gop_interval )(void *camera_handle, int stream_id, int *interval)

---

Field Documentation

int(* _hal_backend_media_camera_funcs::add_message_callback)(void *camera_handle, hal_camera_message_cb callback, void *user_data, uint32_t *cb_id)

Remove message callback

int(* _hal_backend_media_camera_funcs::close_device)(void *camera_handle)

Add message callback

int(* _hal_backend_media_camera_funcs::deinit)(void *camera_handle)

Get list of device information

int(* _hal_backend_media_camera_funcs::get_command)(void *camera_handle, camera_command_e command, void **value)

Set batch command for multiple settings

int(* _hal_backend_media_camera_funcs::get_device_info_list)(camera_device_info_list_s *device_info_list)

Open device

int(* _hal_backend_media_camera_funcs::get_extra_preview_bitrate)(void *camera_handle, int stream_id, int *bitrate)

Set GOP(Group Of Pictures) interval for extra preview stream

int(* _hal_backend_media_camera_funcs::get_extra_preview_gop_interval)(void *camera_handle, int stream_id, int *interval)

Get list of device capability (

Since:

HAL_MODULE_CAMERA 1.1)

int(* _hal_backend_media_camera_funcs::get_extra_preview_stream_format)(void *camera_handle, int stream_id, camera_format_s *format)

Set bitrate for extra preview stream

int(* _hal_backend_media_camera_funcs::get_preview_stream_format)(void *camera_handle, camera_format_s *format)

Set buffer fd which is allocated by user

int(* _hal_backend_media_camera_funcs::get_video_stream_format)(void *camera_handle, camera_format_s *format)

Start record

int(* _hal_backend_media_camera_funcs::init)(void **camera_handle)

< Initialize HAL backend handle Deinitialize HAL backend handle

int(* _hal_backend_media_camera_funcs::open_device)(void *camera_handle, int device_index)

Open device for extension

int(* _hal_backend_media_camera_funcs::open_device_ext)(void *camera_handle, const char *device_name)

Close device

int(* _hal_backend_media_camera_funcs::release_extra_preview_buffer)(void *camera_handle, int stream_id, int buffer_index)

Set format for extra preview stream

int(* _hal_backend_media_camera_funcs::release_preview_buffer)(void *camera_handle, int buffer_index)

Stop preview

int(* _hal_backend_media_camera_funcs::release_video_buffer)(void *camera_handle, int buffer_index)

Stop record

int(* _hal_backend_media_camera_funcs::remove_message_callback)(void *camera_handle, uint32_t cb_id)

Set format for preview stream

int(* _hal_backend_media_camera_funcs::set_batch_command)(void *camera_handle, camera_batch_command_control_s *batch_command, uint64_t *error_command)

Set preview callback for extra stream

int(* _hal_backend_media_camera_funcs::set_command)(void *camera_handle, camera_command_e command, void *value)

Get command for various settings

int(* _hal_backend_media_camera_funcs::set_extra_preview_bitrate)(void *camera_handle, int stream_id, int bitrate)

Get bitrate for extra preview stream

int(* _hal_backend_media_camera_funcs::set_extra_preview_frame_cb)(void *camera_handle, hal_camera_extra_preview_frame_cb callback, void *user_data)

Unset preview callback for extra stream

int(* _hal_backend_media_camera_funcs::set_extra_preview_gop_interval)(void *camera_handle, int stream_id, int interval)

Get GOP(Group Of Pictures) interval for extra preview stream

int(* _hal_backend_media_camera_funcs::set_extra_preview_stream_format)(void *camera_handle, int stream_id, camera_format_s *format)

Get format for extra preview stream

int(* _hal_backend_media_camera_funcs::set_preview_stream_format)(void *camera_handle, camera_format_s *format)

Get format for preview stream

int(* _hal_backend_media_camera_funcs::set_user_buffer_fd)(void *camera_handle, int *fds, int number)

Start preview

int(* _hal_backend_media_camera_funcs::set_video_stream_format)(void *camera_handle, camera_format_s *format)

Get format for video stream

int(* _hal_backend_media_camera_funcs::start_auto_focus)(void *camera_handle)

Stop auto focusing

int(* _hal_backend_media_camera_funcs::start_capture)(void *camera_handle, hal_camera_capture_cb callback, void *user_data)

Stop capture

int(* _hal_backend_media_camera_funcs::start_preview)(void *camera_handle, hal_camera_preview_frame_cb callback, void *user_data)

Release preview buffer

int(* _hal_backend_media_camera_funcs::start_record)(void *camera_handle, hal_camera_video_frame_cb callback, void *user_data)

Release video buffer

int(* _hal_backend_media_camera_funcs::stop_auto_focus)(void *camera_handle)

Start capture

int(* _hal_backend_media_camera_funcs::stop_capture)(void *camera_handle)

Set format for video stream

int(* _hal_backend_media_camera_funcs::stop_preview)(void *camera_handle)

Start auto focusing

int(* _hal_backend_media_camera_funcs::stop_record)(void *camera_handle)

Set command for various settings

int(* _hal_backend_media_camera_funcs::unset_extra_preview_frame_cb)(void *camera_handle)

Release preview buffer for extra stream

---

Define Documentation

#define BUFFER_PLANE_MAX   4

The maximum number of planes in buffer.

Since:

HAL_MODULE_CAMERA 1.0

#define DEVICE_COUNT_MAX   16

The maximum number of device count.

Since:

HAL_MODULE_CAMERA 1.0

#define DEVICE_NAME_LENGTH_MAX   16

The maximum length of device name.

Since:

HAL_MODULE_CAMERA 1.0

#define DEVICE_NODE_PATH_LENGTH_MAX   16

The maximum length of device node path.

Since:

HAL_MODULE_CAMERA 1.0

#define FPS_COUNT_MAX   16

The maximum number of FPS count.

Since:

HAL_MODULE_CAMERA 1.0

#define RESOLUTION_COUNT_MAX   32

The maximum number of resolution count.

Since:

HAL_MODULE_CAMERA 1.0

---

Typedef Documentation

typedef struct camera_batch_command_control camera_batch_command_control_s

The structure type of batch command.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_buffer camera_buffer_s

The structure type of the camera buffer.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_command camera_command_e

Enumeration for the camera command.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_device_capability_format camera_device_capability_format_s

The structure type of the camera device capability format.

Since:

HAL_MODULE_CAMERA 1.1

typedef struct camera_device_capability_list camera_device_capability_list_s

The structure type of the camera device capability list.

Since:

HAL_MODULE_CAMERA 1.1

typedef struct camera_device_capability_resolution camera_device_capability_resolution_s

The structure type of the camera device capability resolution.

Since:

HAL_MODULE_CAMERA 1.1

typedef struct camera_device_capability camera_device_capability_s

The structure type of the camera device capability.

Since:

HAL_MODULE_CAMERA 1.1

typedef struct camera_device_info_list camera_device_info_list_s

The structure type of the camera device information list.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_device_info camera_device_info_s

The structure type of the camera device information.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_effect camera_effect_e

Enumeration for the effect.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_error camera_error_e

Enumeration for the camera error.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_exposure_mode camera_exposure_mode_e

Enumeration for the exposure mode.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_face_detection camera_face_detection_e

Enumeration for the face detection.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_facing_direction camera_facing_direction_e

Enumeration for the facing direction of camera device.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_flash_mode camera_flash_mode_e

Enumeration for the flash mode.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_flip camera_flip_e

Enumeration for the camera flip.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_focus_mode camera_focus_mode_e

Enumeration for the focus mode.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_focus_range camera_focus_range_e

Enumeration for the focus range.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_focus_state camera_focus_state_e

Enumeration for the focus state.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_pixel_format_list camera_format_list_s

The structure type of the format list.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_format camera_format_s

The structure type of the camera format.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_fps_list camera_fps_list_s

The structure type of the fps list.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_fraction camera_fraction_s

The structure type of the fraction.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_message camera_message_s

The structure type of the camera message.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_message_type camera_message_type_e

Enumeration for the camera message type.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_metadata camera_metadata_s

The structure type of the camera metadata.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_network_state camera_network_state_e

Enumeration for the camera network state.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_pixel_format camera_pixel_format_e

Enumeration for the camera pixel format.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_plane camera_plane_s

The structure type of the camera plane.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_ptz_type camera_ptz_type_e

Enumeration for the PTZ(Pan Tilt Zoom) type.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_rectangle camera_rectangle_s

The structure type of the rectangle.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_resolution_list camera_resolution_list_s

The structure type of the resolution list.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct camera_resolution camera_resolution_s

The structure type of the resolution.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_rotation camera_rotation_e

Enumeration for the camera rotation.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_scene_mode camera_scene_mode_e

Enumeration for the scene mode.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_shot_mode camera_shot_mode_e

Enumeration for the shot mode.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_state camera_state_e

Enumeration for the camera state.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_status_auto_exposure camera_status_auto_exposure_e

Enumeration for the auto exposure status.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_status_auto_white_balance camera_status_auto_white_balance_e

Enumeration for the auto white balance status.

Since:

HAL_MODULE_CAMERA 1.0

typedef enum camera_white_balance camera_white_balance_e

Enumeration for the white balance.

Since:

HAL_MODULE_CAMERA 1.0

typedef struct _hal_backend_media_camera_funcs hal_backend_camera_funcs

The structure type of the camera HAL functions.

Since:

HAL_MODULE_CAMERA 1.0

typedef int(* hal_camera_capture_cb)(camera_buffer_s *main, camera_buffer_s *postview, camera_buffer_s *thumbnail, void *user_data)

Callback function for captured still image from camera device.

Since:

HAL_MODULE_CAMERA 1.0

Parameters:

[in]	main	The main image data
[in]	postview	The image data of the postview (it could be NULL if the available data does not exist)
[in]	thumbnail	The image data of the thumbnail (it could be NULL if the available data does not exist)
[in]	user_data	The user data passed from the callback registration function

Precondition:

hal_camera_start_capture() will invoke this callback function.

See also:

hal_camera_start_capture()

hal_camera_stop_capture()

typedef int(* hal_camera_extra_preview_frame_cb)(camera_buffer_s *buffer, camera_metadata_s *meta, int stream_id, void *user_data)

Callback function for extra preview frame from camera device.

Since:

HAL_MODULE_CAMERA 1.0

Parameters:

[in]	buffer	The extra preview frame
[in]	meta	The meta data for the extra preview frame
[in]	stream_id	The id of extra preview stream
[in]	user_data	The user data for callback

Precondition:

hal_camera_start_preview() will invoke this callback.

See also:

hal_camera_start_preview()

hal_camera_stop_preview()

typedef int(* hal_camera_message_cb)(camera_message_s *message, void *user_data)

Callback function for notification from camera HAL.

Since:

HAL_MODULE_CAMERA 1.0

Parameters:

[in]	message	The message from camera HAL
[in]	user_data	The user data for callback

See also:

hal_camera_add_message_callback()

hal_camera_remove_message_callback()

typedef int(* hal_camera_preview_frame_cb)(camera_buffer_s *buffer, camera_metadata_s *meta, void *user_data)

Callback function for captured preview frame from camera device.

Since:

HAL_MODULE_CAMERA 1.0

Parameters:

[in]	buffer	The preview frame
[in]	meta	The meta data for the preview frame
[in]	user_data	The user data for callback

Precondition:

hal_camera_start_preview() will invoke this callback.

See also:

hal_camera_start_preview()

hal_camera_stop_preview()

typedef int(* hal_camera_video_frame_cb)(camera_buffer_s *buffer, camera_metadata_s *meta, void *user_data)

Callback function for captured video buffer from camera device.

Since:

HAL_MODULE_CAMERA 1.0

Parameters:

[in]	buffer	The video buffer
[in]	meta	The meta data for the video frame
[in]	user_data	The user data for callback

Precondition:

hal_camera_start_record() will invoke this callback.

See also:

hal_camera_start_record()

hal_camera_stop_record()

---

Enumeration Type Documentation

enum camera_command

Enumeration for the camera command.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_COMMAND_BASE	Base of command
CAMERA_COMMAND_WHITE_BALANCE	White balance
CAMERA_COMMAND_ISO	ISO
CAMERA_COMMAND_CONTRAST	Contrast
CAMERA_COMMAND_SATURATION	Saturation
CAMERA_COMMAND_HUE	Hue
CAMERA_COMMAND_SHARPNESS	Sharpness
CAMERA_COMMAND_EFFECT	Effect
CAMERA_COMMAND_SCENE_MODE	Scene mode
CAMERA_COMMAND_EXPOSURE_MODE	Exposure mode
CAMERA_COMMAND_EXPOSURE	Exposure
CAMERA_COMMAND_ROTATION	Rotation
CAMERA_COMMAND_FLIP	Flip
CAMERA_COMMAND_FOCUS_MODE	Focus mode
CAMERA_COMMAND_FOCUS_RANGE	Focus range
CAMERA_COMMAND_SHOT_MODE	Shot mode
CAMERA_COMMAND_ANTI_SHAKE	Anti shake
CAMERA_COMMAND_FOCUS_AREA	Focus area
CAMERA_COMMAND_DIGITAL_ZOOM	Digital zoom
CAMERA_COMMAND_OPTICAL_ZOOM	Optical zoom
CAMERA_COMMAND_RECORDING_HINT	Recording hint
CAMERA_COMMAND_WDR	Wide dynamic range
CAMERA_COMMAND_SHUTTER_SPEED	Shutter speed
CAMERA_COMMAND_FLASH_MODE	Flash mode
CAMERA_COMMAND_FACE_DETECTION	Face detection
CAMERA_COMMAND_BITRATE	Bitrate
CAMERA_COMMAND_PTZ_TYPE	PTZ(Pan Tilt Zoom) type
CAMERA_COMMAND_PAN	Pan
CAMERA_COMMAND_TILT	Tilt
CAMERA_COMMAND_BRIGHTNESS	Brightness
CAMERA_COMMAND_GOP_INTERVAL	GOP(Group Of Pictures) interval
CAMERA_COMMAND_CAPTURE_COUNT	Capture count
CAMERA_COMMAND_CAPTURE_INTERVAL	Capture interval for continuous capture
CAMERA_COMMAND_FLASH_BRIGHTNESS	Brightness of flash
CAMERA_COMMAND_FOCUS_LEVEL	Level of manual focus
CAMERA_COMMAND_DEVICE_BUS	Device bus name
CAMERA_COMMAND_DEVICE_PORT	Device port name
CAMERA_COMMAND_WHITE_BALANCE_TEMPERATURE	White balance temperature
CAMERA_COMMAND_GAIN	Gain
CAMERA_COMMAND_SWITCH_DEVICE	Switch device (Since 1.2)

enum camera_effect

Enumeration for the effect.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_EFFECT_NONE	None
CAMERA_EFFECT_MONO	Mono
CAMERA_EFFECT_SEPIA	Sepia
CAMERA_EFFECT_NEGATIVE	Negative
CAMERA_EFFECT_RED	Red
CAMERA_EFFECT_GREEN	Green
CAMERA_EFFECT_BLUE	Blue
CAMERA_EFFECT_AQUA	Aqua
CAMERA_EFFECT_ANTIQUE	Antique
CAMERA_EFFECT_WARM	Warm
CAMERA_EFFECT_EMBOSS	Emboss
CAMERA_EFFECT_SKETCH	Sketch
CAMERA_EFFECT_SOLARIZATION	Solarization
CAMERA_EFFECT_POSTERIZATION	Posterization
CAMERA_EFFECT_CARTOON	Cartoon

enum camera_error

Enumeration for the camera error.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_ERROR_NONE	Error none
CAMERA_ERROR_INVALID_PARAMETER	Invalid parameter
CAMERA_ERROR_INVALID_STATE	Invalid state
CAMERA_ERROR_PERMISSION_DENIED	Permission denied
CAMERA_ERROR_OUT_OF_MEMORY	Out of memory
CAMERA_ERROR_DEVICE_OPEN	Device open
CAMERA_ERROR_DEVICE_NOT_FOUND	Device not found
CAMERA_ERROR_DEVICE_UNAVAILABLE	Device unavailable
CAMERA_ERROR_DEVICE_NOT_SUPPORTED	Device not supported
CAMERA_ERROR_DEVICE_READ	Device read
CAMERA_ERROR_DEVICE_WRITE	Device write
CAMERA_ERROR_DEVICE_BUSY	Device busy
CAMERA_ERROR_DEVICE_TIME_OUT	Device time out
CAMERA_ERROR_DEVICE_ESD	Device ESD(Electro Static Discharge)
CAMERA_ERROR_INTERNAL	Internal
CAMERA_ERROR_NOT_IMPLEMENTED	Not implemented
CAMERA_ERROR_UNKNOWN	Unknown

enum camera_exposure_mode

Enumeration for the exposure mode.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_EXPOSURE_MODE_OFF	Off
CAMERA_EXPOSURE_MODE_ALL	All mode
CAMERA_EXPOSURE_MODE_CENTER	Center mode
CAMERA_EXPOSURE_MODE_SPOT	Spot mode
CAMERA_EXPOSURE_MODE_CUSTOM	Custom mode
CAMERA_EXPOSURE_MODE_SHUTTER_PRIORITY	Shutter priority mode
CAMERA_EXPOSURE_MODE_APERTURE_PRIORITY	Aperture priority mode

enum camera_face_detection

Enumeration for the face detection.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_FACE_DETECTION_OFF	Face detection off
CAMERA_FACE_DETECTION_ON	Face detection on

enum camera_facing_direction

Enumeration for the facing direction of camera device.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_FACING_DIRECTION_REAR	Rear facing direction
CAMERA_FACING_DIRECTION_FRONT	Front facing direction
CAMERA_FACING_DIRECTION_EXTERNAL	External

enum camera_flash_mode

Enumeration for the flash mode.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_FLASH_MODE_OFF	Always off
CAMERA_FLASH_MODE_ON	Always splashes
CAMERA_FLASH_MODE_AUTO	Depending on intensity of light, strobe starts to flash
CAMERA_FLASH_MODE_REDEYE_REDUCTION	Red eye reduction. Multiple flash before capturing
CAMERA_FLASH_MODE_SLOW_SYNC	Slow sync curtain synchronization
CAMERA_FLASH_MODE_FRONT_CURTAIN	Front curtain synchronization
CAMERA_FLASH_MODE_REAR_CURTAIN	Rear curtain synchronization
CAMERA_FLASH_MODE_PERMANENT	Keep turned on until turning off

enum camera_flip

Enumeration for the camera flip.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_FLIP_NONE	None
CAMERA_FLIP_HORIZONTAL	Horizontal flip
CAMERA_FLIP_VERTICAL	Vertical flip
CAMERA_FLIP_BOTH	Both

enum camera_focus_mode

Enumeration for the focus mode.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_FOCUS_MODE_NONE	None
CAMERA_FOCUS_MODE_PAN	Pan mode
CAMERA_FOCUS_MODE_AUTO	Auto mode
CAMERA_FOCUS_MODE_CONTINUOUS_AUTO	Continuous auto mode

enum camera_focus_range

Enumeration for the focus range.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_FOCUS_RANGE_NONE	None
CAMERA_FOCUS_RANGE_NORMAL	Normal range
CAMERA_FOCUS_RANGE_MACRO	Macro range
CAMERA_FOCUS_RANGE_FULL	Full range

enum camera_focus_state

Enumeration for the focus state.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_FOCUS_STATE_RELEASED	Released state for auto focus
CAMERA_FOCUS_STATE_ONGOING	Ongoing state for auto focus
CAMERA_FOCUS_STATE_FOCUSED	Focused state for auto focus
CAMERA_FOCUS_STATE_FAILED	Failed state for auto focus

enum camera_message_type

Enumeration for the camera message type.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_MESSAGE_TYPE_FOCUS_CHANGED	The focus state changed
CAMERA_MESSAGE_TYPE_CAPTURED	The snapshot captured
CAMERA_MESSAGE_TYPE_HDR_PROGRESS	The progress of HDR
CAMERA_MESSAGE_TYPE_ERROR	The error
CAMERA_MESSAGE_TYPE_NETWORK_STATE	The state of network camera

enum camera_network_state

Enumeration for the camera network state.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_NETWORK_STATE_PLAYING	Playing state for network camera
CAMERA_NETWORK_STATE_PAUSED	Paused state for network camera

enum camera_pixel_format

Enumeration for the camera pixel format.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_PIXEL_FORMAT_NV12	Raw - NV12
CAMERA_PIXEL_FORMAT_NV21	Raw - NV21
CAMERA_PIXEL_FORMAT_I420	Raw - I420
CAMERA_PIXEL_FORMAT_YV12	Raw - YV12
CAMERA_PIXEL_FORMAT_YUYV	Raw - YUYV
CAMERA_PIXEL_FORMAT_UYVY	Raw - UYVY
CAMERA_PIXEL_FORMAT_BGRA8888	Raw - BGRA8888
CAMERA_PIXEL_FORMAT_ARGB8888	Raw - ARGB8888
CAMERA_PIXEL_FORMAT_JPEG	Encoded - JPEG
CAMERA_PIXEL_FORMAT_H264	Encoded - H.264
CAMERA_PIXEL_FORMAT_MJPEG	Encoded - MJPEG
CAMERA_PIXEL_FORMAT_VP8	Encoded - VP8
CAMERA_PIXEL_FORMAT_VP9	Encoded - VP9
CAMERA_PIXEL_FORMAT_DEPTH	Depth

enum camera_ptz_type

Enumeration for the PTZ(Pan Tilt Zoom) type.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_PTZ_TYPE_MECHANICAL	Move the camera device physically
CAMERA_PTZ_TYPE_ELECTRONIC	Zoom digitally and move into portion of the image

enum camera_rotation

Enumeration for the camera rotation.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_ROTATION_0	0 degree
CAMERA_ROTATION_90	90 degree
CAMERA_ROTATION_180	180 degree
CAMERA_ROTATION_270	270 degree

enum camera_scene_mode

Enumeration for the scene mode.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_SCENE_MODE_NORMAL	Normal
CAMERA_SCENE_MODE_PORTRAIT	Portrait
CAMERA_SCENE_MODE_LANDSCAPE	Landscape
CAMERA_SCENE_MODE_SPORTS	Sports
CAMERA_SCENE_MODE_PARTY_N_INDOOR	Party & indoor
CAMERA_SCENE_MODE_BEACH_N_INDOOR	Beach & indoor
CAMERA_SCENE_MODE_SUNSET	Sunset
CAMERA_SCENE_MODE_DUSK_N_DAWN	Dusk & dawn
CAMERA_SCENE_MODE_FALL_COLOR	Fall
CAMERA_SCENE_MODE_NIGHT_SCENE	Night scene
CAMERA_SCENE_MODE_FIREWORK	Firework
CAMERA_SCENE_MODE_TEXT	Text
CAMERA_SCENE_MODE_SHOW_WINDOW	Show window
CAMERA_SCENE_MODE_CANDLE_LIGHT	Candle light
CAMERA_SCENE_MODE_BACKLIGHT	Backlight
CAMERA_SCENE_MODE_AQUA	Aqua

enum camera_shot_mode

Enumeration for the shot mode.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_SHOT_MODE_NORMAL	Normal
CAMERA_SHOT_MODE_CONTINUOUS	Continuous
CAMERA_SHOT_MODE_HDR	HDR
CAMERA_SHOT_MODE_NIGHT	Night

enum camera_state

Enumeration for the camera state.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_STATE_INITIALIZED	Initialized state for camera device
CAMERA_STATE_OPENED	Opened state for camera device
CAMERA_STATE_PREVIEWING	Previewing state for camera device
CAMERA_STATE_CAPTURING	Capturing state for camera device
CAMERA_STATE_RECORDING	Recording state for camera device
CAMERA_STATE_RECORDING_SNAPSHOT	Capturing state while recording for camera device

enum camera_status_auto_exposure

Enumeration for the auto exposure status.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_STATUS_AUTO_EXPOSURE_NONE	None
CAMERA_STATUS_AUTO_EXPOSURE_UNSTABLE	Unstable status for auto exposure
CAMERA_STATUS_AUTO_EXPOSURE_STABLE	Stable status for auto exposure

enum camera_status_auto_white_balance

Enumeration for the auto white balance status.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_STATUS_AUTO_WHITE_BALANCE_NONE	None
CAMERA_STATUS_AUTO_WHITE_BALANCE_UNSTABLE	Unstable status for auto white balance
CAMERA_STATUS_AUTO_WHITE_BALANCE_STABLE	Stable status for auto white balance

enum camera_white_balance

Enumeration for the white balance.

Since:

HAL_MODULE_CAMERA 1.0

Enumerator:

CAMERA_WHITE_BALANCE_AUTO	Automatic
CAMERA_WHITE_BALANCE_DAYLIGHT	Daylight
CAMERA_WHITE_BALANCE_CLOUDY	Cloudy
CAMERA_WHITE_BALANCE_FLUORESCENT	Fluorescent
CAMERA_WHITE_BALANCE_INCANDESCENT	Incandescent
CAMERA_WHITE_BALANCE_SHADE	Shade
CAMERA_WHITE_BALANCE_HORIZON	Horizon
CAMERA_WHITE_BALANCE_FLASH	Flash