12 #include <initializer_list> 32 struct StreamConfiguration;
54 virtual bool isValid()
const = 0;
66 virtual std::tuple<unsigned int, unsigned int>
73 const std::vector<std::reference_wrapper<StreamConfiguration>> &outputCfgs) = 0;
76 std::vector<std::unique_ptr<FrameBuffer>> *buffers) = 0;
78 virtual int start() = 0;
79 virtual void stop() = 0;
82 const std::map<const Stream *, FrameBuffer *> &outputs) = 0;
91 const std::string &
deviceNode()
const {
return deviceNode_; }
99 std::string deviceNode_;
108 const std::vector<std::string> &
compatibles()
const {
return compatibles_; }
110 static std::unique_ptr<Converter> create(
MediaDevice *media);
111 static std::vector<ConverterFactoryBase *> &factories();
112 static std::vector<std::string> names();
119 virtual std::unique_ptr<Converter> createInstance(
MediaDevice *media)
const = 0;
122 std::vector<std::string> compatibles_;
125 template<
typename _Converter>
136 return std::make_unique<_Converter>(media);
140 #define REGISTER_CONVERTER(name, converter, compatibles) \ 141 static ConverterFactory<converter> global_##converter##Factory(name, compatibles); Utilities to help constructing class interfaces.
virtual std::vector< PixelFormat > formats(PixelFormat input)=0
Retrieve the list of supported pixel formats for an input pixel format.
virtual int configure(const StreamConfiguration &inputCfg, const std::vector< std::reference_wrapper< StreamConfiguration >> &outputCfgs)=0
Configure a set of output stream conversion from an input stream.
Video stream for a camera.
Definition: stream.h:75
virtual int start()=0
Start the converter streaming operation.
Signal< FrameBuffer * > inputBufferReady
A signal emitted when the input frame buffer completes.
Definition: converter.h:88
Top-level libcamera namespace.
Definition: backtrace.h:17
virtual int setInputCrop(const Stream *stream, Rectangle *rect)=0
Set the crop rectangle rect for stream.
Base class for converter factories.
Definition: converter.h:102
std::unique_ptr< Converter > createInstance(MediaDevice *media) const override
Create an instance of the Converter corresponding to the factory.
Definition: converter.h:134
virtual int loadConfiguration(const std::string &filename)=0
Load converter configuration from file.
Frame buffer data and its associated dynamic metadata.
Definition: framebuffer.h:48
const std::vector< std::string > & compatibles() const
Definition: converter.h:108
Describe a two-dimensional size.
Definition: geometry.h:50
virtual std::pair< Rectangle, Rectangle > inputCropBounds()=0
Retrieve the crop bounds of the converter.
Converter(MediaDevice *media, Features features=Feature::None)
Construct a Converter instance.
Definition: converter.cpp:71
Signal & slot implementation.
virtual void stop()=0
Stop the converter streaming operation.
Describe a rectangle's position and dimensions.
Definition: geometry.h:240
ConverterFactory(const char *name, std::initializer_list< std::string > compatibles)
Construct a converter factory.
Definition: converter.h:129
virtual int validateOutput(StreamConfiguration *cfg, bool *adjusted, Alignment align=Alignment::Down)=0
Validate and possibily adjust cfg to a valid converter output.
virtual SizeRange sizes(const Size &input)=0
Retrieve the range of minimum and maximum output sizes for an input size.
#define LIBCAMERA_DISABLE_COPY_AND_MOVE(klass)
Disable copy and move construction and assignment of the klass.
virtual std::tuple< unsigned int, unsigned int > strideAndFrameSize(const PixelFormat &pixelFormat, const Size &size)=0
Retrieve the output stride and frame size for an input configutation.
Signal< FrameBuffer * > outputBufferReady
A signal emitted on each frame buffer completion of the output queue.
Definition: converter.h:89
const std::string & deviceNode() const
The converter device node attribute accessor.
Definition: converter.h:91
Registration of ConverterFactory classes and creation of instances.
Definition: converter.h:126
virtual int exportBuffers(const Stream *stream, unsigned int count, std::vector< std::unique_ptr< FrameBuffer >> *buffers)=0
Export buffers from the converter device.
Generic signal and slot communication mechanism.
Definition: object.h:21
Describe a range of sizes.
Definition: geometry.h:198
Features features_
Stores the features supported by the converter.
Definition: converter.h:96
virtual bool isValid() const =0
Check if the converter configuration is valid.
Alignment
The alignment mode specified when adjusting the converter input or output sizes.
Definition: converter.h:44
Data structures related to geometric objects.
virtual int queueBuffers(FrameBuffer *input, const std::map< const Stream *, FrameBuffer *> &outputs)=0
Queue buffers to converter device.
Features features() const
Retrieve the features supported by the converter.
Definition: converter.h:93
virtual Size adjustOutputSize(const PixelFormat &pixFmt, const Size &size, Alignment align=Alignment::Down)=0
Adjust the converter output size to a valid value.
virtual Size adjustInputSize(const PixelFormat &pixFmt, const Size &size, Alignment align=Alignment::Down)=0
Adjust the converter input size to a valid value.
Configuration parameters for a stream.
Definition: stream.h:40
Feature
Specify the features supported by the converter.
Definition: converter.h:37
Abstract Base Class for converter.
Definition: converter.h:34
virtual bool isConfigured(const Stream *stream) const =0
Check if a given stream is configured.