objc2_video_toolbox/generated/

VTRAWProcessingSession.rs

//! This file has been automatically generated by `objc2`'s `header-translator`.
//! DO NOT EDIT
use core::cell::UnsafeCell;
use core::ffi::*;
use core::marker::{PhantomData, PhantomPinned};
use core::ptr::NonNull;
use objc2_core_foundation::*;
#[cfg(feature = "objc2-core-media")]
use objc2_core_media::*;
#[cfg(feature = "objc2-core-video")]
use objc2_core_video::*;

use crate::*;

/// A reference to a Video Toolbox RAW Processing Session.
///
/// A RAW processing session supports processing of frames that have been output from decoders in camera native formats, for example RAW or bayer formats.
/// The session reference is a reference-counted CF object.
///
/// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/vtrawprocessingsession?language=objc)
#[repr(C)]
pub struct VTRAWProcessingSession {
    inner: [u8; 0],
    _p: UnsafeCell<PhantomData<(*const UnsafeCell<()>, PhantomPinned)>>,
}

cf_type!(
    #[encoding_name = "OpaqueVTRAWProcessingSession"]
    unsafe impl VTRAWProcessingSession {}
);

/// Block invoked when processing parameters change.
///
/// This block is called when available parameters or parameter values change without an explicit call to VTRAWProcessingSessionSetProcessingParameters.
/// This is intended to allow the client to update any UI driven by these parameters.
///
/// Parameter `newParameters`: A CFArrayRef contaiing the new parameter details.  This follows the same form as the array returned from VTRAWProcessingSessionCopyProcessingParameters.
///
/// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/vtrawprocessingparameterchangehandler?language=objc)
#[cfg(feature = "block2")]
pub type VTRAWProcessingParameterChangeHandler = *mut block2::Block<dyn Fn(*const CFArray)>;

extern "C-unwind" {
    /// Creates a RAW video frame processing session.
    ///
    /// .
    ///
    /// Parameter `allocator`: An allocator for the session.  Pass NULL to use the default allocator.
    ///
    /// Parameter `formatDescription`: The CMVideoFormatDescription corresponding to the original media samples, containing sequence-level processing parameters.
    ///
    /// Parameter `outputPixelBufferAttributes`: A CoreVideo pixel buffer attributes dictionary describing the client's requirements for pixel buffers for output frames.
    /// Pass NULL to receive the RAW processor's native output format.
    ///
    /// Parameter `processingSessionOptions`: A dictionary of creation-time options for the VTRAWProcessingSession.
    ///
    /// Parameter `processingSessionOut`: Points to a variable to receive the new RAW processing session.
    /// When you are done with the session, call VTRAWProcessingSessionInvalidate
    /// to tear it down and then CFRelease to release your object reference.
    #[cfg(feature = "objc2-core-media")]
    pub fn VTRAWProcessingSessionCreate(
        allocator: Option<&CFAllocator>,
        format_description: &CMVideoFormatDescription,
        output_pixel_buffer_attributes: Option<&CFDictionary>,
        processing_session_options: Option<&CFDictionary>,
        processing_session_out: NonNull<*mut VTRAWProcessingSession>,
    ) -> OSStatus;
}

extern "C-unwind" {
    /// Tears down a RAW processing session.
    ///
    /// When you are done with a decompression session you created, call VTRAWProcessingSessionInvalidate
    /// to tear it down and then CFRelease to release your object reference.
    /// When a  session's retain count reaches zero, it is automatically invalidated, but
    /// since sessions may be retained by multiple parties, it can be hard to predict when this will happen.
    /// Calling VTRAWProcessingSessionInvalidate ensures a deterministic, orderly teardown.
    pub fn VTRAWProcessingSessionInvalidate(session: &VTRAWProcessingSession);
}

unsafe impl ConcreteType for VTRAWProcessingSession {
    /// Returns the CFTypeID for RAW processing sessions.
    #[doc(alias = "VTRAWProcessingSessionGetTypeID")]
    #[inline]
    fn type_id() -> CFTypeID {
        extern "C-unwind" {
            fn VTRAWProcessingSessionGetTypeID() -> CFTypeID;
        }
        unsafe { VTRAWProcessingSessionGetTypeID() }
    }
}

extern "C-unwind" {
    /// Provides a block which will be called when the VTRAWProcessingPlugin changes the set of processing parameters..
    ///
    /// This block will be called the VTRAWProcessingPlugin either changes the set of available processing parameters, or changes the current value of parameters.
    /// The VTRAWProcessingPlugin may change parameters based on metadata associated with input frames, or in response to other parameters configured by VTRAWProcessingSessionSetProcessingParameters.
    /// This optional and does not need to be configured if the client is not driving UI based on these parameters, or otherwise does not need this.
    ///
    /// Parameter `session`: The RAW processing session.
    ///
    /// Parameter `parameterChangeHandler`: A VTRAWProcessingParameterChangeHandler block which will be called when the set of processing parameters changes, or the value of a parameter changes without the client explicitly requesting it.
    /// Setting this to NULL removes the current handler.
    #[cfg(feature = "block2")]
    pub fn VTRAWProcessingSessionSetParameterChangedHander(
        session: &VTRAWProcessingSession,
        parameter_change_handler: VTRAWProcessingParameterChangeHandler,
    ) -> OSStatus;
}

/// Block invoked when frame processing is complete.
///
/// On successful processing, will return a CVPixelBuffer conforming to the session's outputPixelBufferAttributes if any were provided.
///
/// Parameter `status`: noErr if processing request was successful; an error code if it was not successful.
///
/// Parameter `processedPixelBuffer`: A CVPixelBuffer containing the processed video frame if processing request was successful;
/// otherwise, NULL.
///
/// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/vtrawprocessingoutputhandler?language=objc)
#[cfg(all(feature = "block2", feature = "objc2-core-video"))]
pub type VTRAWProcessingOutputHandler = *mut block2::Block<dyn Fn(OSStatus, *mut CVPixelBuffer)>;

extern "C-unwind" {
    /// Call this function to submit RAW frames for format-specific processing using sequence and frame level parameters.
    ///
    /// Processed frames may or may not be output before the function returns,
    /// The client should not modify the input pixel data after making this call.
    /// The RAW Processor will retain the input pixel buffer as long as necessary.
    ///
    /// For any RAW processor, there is a finite number of frames that can be
    /// presented to VTRAWProcessingSessionProcessFrame before the function will block
    /// until the output callback is invoked.
    ///
    /// Parameter `session`: The RAW processing session.
    ///
    /// Parameter `inputPixelBuffer`: A CVPixelBuffer containing an input video frame to be processed.
    ///
    /// Parameter `frameOptions`: Contains key/value pairs specifying additional properties for processing this frame.
    /// No keys currently.  Pass NULL.
    ///
    /// Parameter `outputHandler`: A VTRAWProcessingOutputHandler block which will be called once when processing is complete.
    #[cfg(all(feature = "block2", feature = "objc2-core-video"))]
    pub fn VTRAWProcessingSessionProcessFrame(
        session: &VTRAWProcessingSession,
        input_pixel_buffer: &CVPixelBuffer,
        frame_options: Option<&CFDictionary>,
        output_handler: VTRAWProcessingOutputHandler,
    ) -> OSStatus;
}

extern "C-unwind" {
    /// Forces the RAW Processor to complete processing frames.
    ///
    /// Call this after calling a set of VTRAWProcessingSessionProcessFrame calls to ensure that all frames have been processed.
    /// Before VTRAWProcessingSessionCompleteFrames returns, the output handler will be invoked for all pending frames.
    ///
    /// Parameter `session`: The RAW processing session.
    pub fn VTRAWProcessingSessionCompleteFrames(session: &VTRAWProcessingSession) -> OSStatus;
}

extern "C-unwind" {
    /// Copies an array of dictionaries describing the parameters provided by the RAW Processor for frame processing
    ///
    /// This will return an array of dictionaries, one dictionary for each parameter that can be controlled in the RAW Processing operation.
    /// The dictionary for each parameter will contain a set of kVTRAWProcessingParameter keys whose values provide a name, value type,
    /// value range, and current value for each parameter.
    ///
    /// The returned values can be used to contruct dynamic UI presenting RAW Processing controls allowing the various knobs for this
    /// specific RAW Processor to be viewed and manipulated.
    ///
    /// Parameter `session`: The RAW processing session.
    ///
    /// Parameter `outParameterArray`: Pointer for receiving the RAW Processing parameter array..
    pub fn VTRAWProcessingSessionCopyProcessingParameters(
        session: &VTRAWProcessingSession,
        out_parameter_array: NonNull<*const CFArray>,
    ) -> OSStatus;
}

extern "C-unwind" {
    /// Sets a collection of RAW Processing parameters
    ///
    /// This call will set a collection of RAW Processing parameters on the RAW Processor.  These are set as a dictionary where the keys match
    /// kVTRAWProcessingParameter_Key values that were returned in VTRAWProcessingSessionCopyProcessingParameters and where values conform
    /// to the type and range defined in the kVTRAWProcessingParameter dictionary for each parameter.
    ///
    /// Not all parameters from the RAWProcessingParameter array need to be set at any given time.  Changining the parameters will not change
    /// processing on frames already submitted for processing, it will only impact frames where VTRAWProcessingSessionProcessFrame is called
    /// after VTRAWProcessingSessionSetProcessingParameters returns.
    ///
    /// If any parameters specified are not in the array reported by VTRAWProcessingSessionCopyProcessingParameters, or are the wrong type or are out of range,
    /// kVTParameterErr will be returned and none of the parameters will be applied.
    ///
    /// Parameter `session`: The RAW processing session.
    ///
    /// Parameter `processingParameters`: A dictionary of keys and values setting parameters reported by VTRAWProcessingSessionCopyProcessingParameters.
    ///
    /// Returns: Returns an error if any of the provided parameters are invalid, disabled or outside of the declared valid range.
    /// None of the provided parameters will be set on the processor if an error is returned.
    pub fn VTRAWProcessingSessionSetProcessingParameters(
        session: &VTRAWProcessingSession,
        processing_parameters: &CFDictionary,
    ) -> OSStatus;
}

extern "C" {
    /// The value corresponding to this key is the string used when specifying this parameter when calling VTRAWProcessingSessionSetProcessingParameters.
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_key?language=objc)
    pub static kVTRAWProcessingParameter_Key: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is a localized string  which can be displayed in UI representing this parameter.
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_name?language=objc)
    pub static kVTRAWProcessingParameter_Name: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is a localized string with a description of the parameter suitable for display in a tooltip or other descriptive UI.
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_description?language=objc)
    pub static kVTRAWProcessingParameter_Description: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is Boolean indicating whether the parameter is enabled and can be modified.
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_enabled?language=objc)
    pub static kVTRAWProcessingParameter_Enabled: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is the type of the parameter - a Boolean, Integer, Float, List, or SubGroup.
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_valuetype?language=objc)
    pub static kVTRAWProcessingParameter_ValueType: &'static CFString;
}

extern "C" {
    /// [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparametervaluetype_boolean?language=objc)
    pub static kVTRAWProcessingParameterValueType_Boolean: &'static CFString;
}

extern "C" {
    /// [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparametervaluetype_integer?language=objc)
    pub static kVTRAWProcessingParameterValueType_Integer: &'static CFString;
}

extern "C" {
    /// [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparametervaluetype_float?language=objc)
    pub static kVTRAWProcessingParameterValueType_Float: &'static CFString;
}

extern "C" {
    /// [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparametervaluetype_list?language=objc)
    pub static kVTRAWProcessingParameterValueType_List: &'static CFString;
}

extern "C" {
    /// [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparametervaluetype_subgroup?language=objc)
    pub static kVTRAWProcessingParameterValueType_SubGroup: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is a CFArray of CFDictionaries describing each element in the list..
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_listarray?language=objc)
    pub static kVTRAWProcessingParameter_ListArray: &'static CFString;
}

extern "C" {
    /// [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameterlistelement_label?language=objc)
    pub static kVTRAWProcessingParameterListElement_Label: &'static CFString;
}

extern "C" {
    /// [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameterlistelement_description?language=objc)
    pub static kVTRAWProcessingParameterListElement_Description: &'static CFString;
}

extern "C" {
    /// [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameterlistelement_listelementid?language=objc)
    pub static kVTRAWProcessingParameterListElement_ListElementID: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is a CFArray of CFDictionaries representing the individual sub-parameters in this group.
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_subgroup?language=objc)
    pub static kVTRAWProcessingParameter_SubGroup: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is the maximum value allowed for this parameter when calling VTRAWProcessingSessionSetProcessingParameters.
    /// This parameter is optional and not required for parameters where it is not appropriate (such as Boolean or List types).
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_maximumvalue?language=objc)
    pub static kVTRAWProcessingParameter_MaximumValue: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is the minimum value allowed for this parameter when calling VTRAWProcessingSessionSetProcessingParameters.
    /// This parameter is optional and not required for parameters where it is not appropriate (such as Boolean or List types).
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_minimumvalue?language=objc)
    pub static kVTRAWProcessingParameter_MinimumValue: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is the initial value for this parameter as defined by the container and metadata provided at creation time.
    /// For List types, this is the ListElementID for the List element.
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_initialvalue?language=objc)
    pub static kVTRAWProcessingParameter_InitialValue: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is a neutral setting for the processor.
    /// For List types, this is the ListElementID for the List element.
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_neutralvalue?language=objc)
    pub static kVTRAWProcessingParameter_NeutralValue: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is the "As Shot" value for this parameter as originally captured by the camera.
    /// For List types, this is the ListElementID for the List element.
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_cameravalue?language=objc)
    pub static kVTRAWProcessingParameter_CameraValue: &'static CFString;
}

extern "C" {
    /// The value corresponding to this key is the currently configured value for this parameter.  For List types, this is the ListElementID for the List element.
    ///
    /// See also [Apple's documentation](https://developer.apple.com/documentation/videotoolbox/kvtrawprocessingparameter_currentvalue?language=objc)
    pub static kVTRAWProcessingParameter_CurrentValue: &'static CFString;
}