Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 12345]

Nlibcamera	Top-level libcamera namespace
Nutils
Coverloaded	Helper type for type-matching std::visit() implementations
CDuration	Helper class from std::chrono::duration that represents a time duration in nanoseconds with double precision
CScopeExitActions	An object that performs actions upon destruction
Nipa	The IPA (Image Processing Algorithm) namespace
Nipu3
Nalgorithms
CAf	An auto-focus algorithm based on IPU3 statistics
CAgc	A mean-based auto-exposure algorithm
CAccumulator	RGB statistics for a given zone
CAwb	A Grey world white balance correction algorithm
CBlackLevelCorrection	A class to handle black level correction
CToneMapping	A class to handle tone mapping based on gamma
CIPASessionConfiguration	Session configuration for the IPA module
CIPAActiveState	The active state of the IPA algorithms
CIPAFrameContext	IPU3-specific FrameContext
CIPAContext	Global IPA context data shared between all algorithms
CIPAIPU3	The IPU3 IPA implementation
CAgcMeanLuminance	A mean-based auto-exposure algorithm
CAgcConstraint	The boundaries and target for an AeConstraintMode constraint
CAlgorithm	The base class for all IPA algorithms
CAlgorithmFactory	Registration of Algorithm classes and creation of instances
CAwbResult	The result of an AWB calculation
CAwbStats	An abstraction class wrapping hardware-specific AWB statistics
CAwbAlgorithm	A base class for auto white balance algorithms
CModeConfig	Holds the configuration of a single AWB mode
CAwbBayes	Implementation of a bayesian auto white balance algorithm
CAwbGrey	A Grey world auto white balance algorithm
CCameraSensorHelper	Base class for computing sensor tuning parameters using sensor-specific constants
CAnalogueGainLinear	Analogue gain constants for the linear gain model
CAnalogueGainExp	Analogue gain constants for the exponential gain model
CCameraSensorHelperFactoryBase	Base class for camera sensor helper factories
CCameraSensorHelperFactory	Registration of CameraSensorHelperFactory classes and creation of instances
CExposureModeHelper	Class for splitting exposure into exposure time and total gain
CFCQueue	A support class for managing FrameContext instances in IPA modules
CFrameContext	Context for a frame
CFixedPointQTraits	Traits type implementing fixed-point quantization conversions
CHistogram	The base class for creating histograms
CInterpolator	Class for storing, retrieving, and interpolating objects
CLscPolynomial	Class for handling even polynomials used in lens shading correction
CLux	Class that implements lux estimation
CModule	The base class for all IPA modules
CPwl	Describe a univariate piecewise linear function in two-dimensional real space
CInterval	Describe an interval in one-dimensional real space
CQuantized	Wrapper that stores a value in both quantized and floating-point form
CV4L2ParamsBlock	Helper class that represents an ISP configuration block
CV4L2ParamsBase	Base class for V4L2Params
CV4L2Params	Helper class that represent an ISP configuration buffer
CBacktrace	Representation of a call stack backtrace
CExtensible	Base class to manage private data through a d-pointer
CPrivate	Base class for private data managed through a d-pointer
CEventDispatcher	Interface to manage the libcamera events and timers
CEventDispatcherPoll	A poll-based event dispatcher
CEventNotifier	Notify of activity on a file descriptor
CFile	Interface for I/O operations on files
CFlags	Type-safe container for enum-based bitfields
CLogCategory	A category of log message
CLogMessage	Internal log message representation
CLoggable	Base class to support log message extensions
CMemFd	Helper class to create anonymous files
CMessage	A message that can be posted to a Thread
CInvokeMessage	A message carrying a method invocation across threads
CMutex	Std::mutex wrapper with clang thread safety annotation
CMutexLocker	Std::unique_lock wrapper with clang thread safety annotation
CConditionVariable	Std::condition_variable wrapper integrating with MutexLocker
CSignal	Generic signal and slot communication mechanism
CObject	Base object to support automatic signal disconnection
CSemaphore	General-purpose counting semaphore
CSharedFD	RAII-style wrapper for file descriptors
CThread	A thread of execution
CTimer	Single-shot timer interface
CUniqueFD	Unique_ptr-like wrapper for a file descriptor
CSensorConfiguration	Camera sensor configuration
CCameraConfiguration	Hold configuration for streams of the camera
CCamera	Camera device
CPrivate	Base class for camera private data
CCameraManager	Provide access and manage all cameras in the system
CColorSpace	Class to describe a color space
CControlValue	Abstract type representing the value of a control
CControlId	Control static metadata
CControl	Describe a control and its intrinsic properties
CControlInfo	Describe the limits of valid values for a Control
CControlInfoMap	A map of ControlId to ControlInfo
CControlList	Associate a list of ControlId with their values for an object
CFence	Synchronization primitive to manage resources
CFrameMetadata	Metadata related to a captured frame
CPlane	Per-plane frame metadata
CFrameBuffer	Frame buffer data and its associated dynamic metadata
CPlane	A memory region to store a single plane of a frame
CPrivate	Base class for FrameBuffer private data
CFrameBufferAllocator	FrameBuffer allocator for applications
CPoint	Describe a point in two-dimensional space
CSize	Describe a two-dimensional size
CSizeRange	Describe a range of sizes
CRectangle	Describe a rectangle's position and dimensions
CBayerFormat	Class to represent a raw image Bayer format
CByteStreamBuffer	Wrap a memory buffer and provide sequential data read and write
CCameraControlValidator	A control validator for Camera instances
CCameraLens	A camera lens based on V4L2 subdevices
CCameraSensor	A abstract camera sensor
CCameraSensorFactoryBase	Base class for camera sensor factories
CCameraSensorFactory	Registration of CameraSensorFactory classes and creation of instances
CCameraSensorProperties	Database of camera sensor properties
CSensorDelays	Sensor control application delay values
CClockRecovery	Recover an output clock from an input clock
CControlSerializer	Serializer and deserializer for control-related classes
CControlValidator	Interface for the control validator
CConverter	Abstract Base Class for converter
CConverterFactoryBase	Base class for converter factories
CConverterFactory	Registration of ConverterFactory classes and creation of instances
CConverterDW100Module	A converter module for the dw100 dewarper
CDw100VertexMap	Helper class to compute dw100 vertex maps
CDewarpParams	Structure combining all dewarp parameters
CV4L2M2MConverter	The V4L2 M2M converter implements the converter interface based on V4L2 M2M device
CDebugMetadata	Helper to record metadata for later use
CDelayedControls	Helper to deal with controls that take effect with a delay
CControlParams	Parameters associated with controls handled by the DelayedControls helper class
CDeviceMatch	Description of a media device search pattern
CDeviceEnumerator	Enumerate, store and search media devices
CDmaBufAllocator	Helper class for dma-buf allocations
CDmaSyncer	Helper class for dma-buf's synchronization
CeGLImage	Helper class for managing EGL image resources
CeGL	Helper class for managing OpenGL ES operations
CPixelFormatInfo	Information about pixel formats
CPlane	Information about a single plane of a pixel format
CGlobalConfiguration	Support for global libcamera configuration
CIPADataSerializer	IPA Data Serializer
CIPAManager	Manager for IPA modules
CIPAModule	Wrapper around IPA module shared object
CIPAProxy	IPA Proxy
CIPCMessage	IPC message to be passed through IPC message pipe
CHeader	Container for an IPCMessage header
CIPCPipe	IPC message pipe for IPA isolation
CIPCUnixSocket	IPC mechanism based on Unix sockets
CPayload	Container for an IPC payload
CMappedBuffer	Provide an interface to support managing memory mapped buffers
CMappedFrameBuffer	Map a FrameBuffer using the MappedBuffer interface
CMatrix	Matrix class
CMediaDevice	The MediaDevice represents a Media Controller device with its full graph of connected objects
CMediaObject	Base class for all media objects
CMediaLink	The MediaLink represents a link between two pads in the media graph
CMediaPad	The MediaPad represents a pad of an entity in the media graph
CMediaEntity	The MediaEntity represents an entity in the media graph
CMediaPipeline	The MediaPipeline represents a set of entities that together form a data path for stream data
CEntity	A node composing the media pipeline
CPipelineHandler	Create and manage cameras based on a set of media devices
CPipelineHandlerFactoryBase	Base class for pipeline handler factories
CPipelineHandlerFactory	Registration of PipelineHandler classes and creation of instances
CProcess	Process object
CPubKey	Public key wrapper for signature verification
CSensorCfaLayout
CSharedMem	Helper class to allocate and manage memory shareable between processes
CSharedMemObject	Helper class to allocate an object in shareable memory
CBenchmark	Simple builtin benchmark
CDebayerParams	Struct to hold the debayer parameters
CSoftwareIsp	Class for the Software ISP
CSwIspStats	Struct that holds the statistics for the Software ISP
CSwStatsCpu	Class for gathering statistics on the CPU
CV4L2Device	Base class for V4L2VideoDevice and V4L2Subdevice
CV4L2PixelFormat	V4L2 pixel format FourCC wrapper
CInfo	Information about a V4L2 pixel format
CV4L2Request	V4L2Request object and API
CMediaBusFormatInfo	Information about media bus formats
CV4L2SubdeviceCapability	Struct v4l2_subdev_capability object wrapper and helpers
CV4L2SubdeviceFormat	The V4L2 sub-device image format and sizes
CV4L2Subdevice	A V4L2 subdevice as exposed by the Linux kernel
CStream	V4L2 subdevice stream
CRoute	V4L2 subdevice routing table entry
CV4L2Capability	Struct v4l2_capability object wrapper and helpers
CV4L2BufferCache	Hot cache of associations between V4L2 buffer indexes and FrameBuffer
CV4L2DeviceFormat	The V4L2 video device image format and sizes
CPlane	Per-plane memory size information
CV4L2VideoDevice	V4L2VideoDevice object and API
CV4L2M2MDevice	Memory-to-Memory video device
CValueNode	A class representing a tree structure of values
CVector	Vector class
CYamlParser	A helper class for parsing a YAML file
Cipa_controls_header	Serialized control packet header
Cipa_control_value_entry	Description of a serialized ControlValue entry
Cipa_control_list_entry	Description of a serialized ControlList entry
Cipa_control_info_entry	Description of a serialized ControlInfo entry
CIPAInterface	C++ Interface for IPA implementation
CIPAModuleInfo	Information of an IPA module
CPixelFormat	Libcamera image pixel format
CRequest	A frame capture request
CPrivate	Request private data
CStreamFormats	Hold information about supported stream formats
CStreamConfiguration	Configuration parameters for a stream
CStream	Video stream for a camera
CLogOutput	Log output
CLogger	Message logger
CMessageQueue	A queue of posted messages
CThreadData	Thread-local internal data
CThreadMain	Thread wrapper for the main thread
CDebayer	Base debayering class
CDebayerInputConfig	Structure describing the incoming Bayer parameters
CDebayerOutputConfig	Structure describing the output frame configuration
CDebayerCpuThread	Class representing one CPU debayering thread
CDebayerCpu	Class for debayering on the CPU
CDebayerEGL	Class for debayering using an EGL Shader
CIPACameraSensorInfo	Report the image sensor characteristics
CIPABuffer	Buffer information for the IPA interface
CIPASettings	IPA interface initialization settings
CIPAStream	Stream configuration for the IPA interface