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03c42e5b93
Fixes several possible crash issues that might occur on Intel-based Macs and older macOS versions: On modern macOS versions (13+) allocated memory is zero-allocated by default which makes NULL pointer checks work correctly after allocation. On older macOS versions this is not the case, so the OBSAVCaptureInfo struct needs to be zero-allocated to ensure the guards in the tick and render functions bail out correctly. On Intel-based Macs and/or older macOS versions passing a reference to the OBSAVCapture instance inside the OBSAVCapture struct can lead to a crash because of a possible circular reference that cannot be resolved at runtime. Passing only a reference of the OBSAVCapture to libobs and incrementing the retain count at source creation (decrementing in when the source is destroyed) avoids this issue entirely.
85 lines
4.4 KiB
Objective-C
85 lines
4.4 KiB
Objective-C
//
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// plugin-properties.h
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// obs-studio
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//
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// Created by Patrick Heyer on 2023-03-07.
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//
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@import Foundation;
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#import <obs-properties.h>
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/// Configures single source property's visibility, possible modification callback and callback payload data, as well as whether the property should be enabled
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/// - Parameters:
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/// - property: The source property to change
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/// - enable: Whether the source property should be enabled (user-changeable)
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/// - visible: Whether the source property should be visible
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/// - callback: Pointer to a function that will be called if this property has been modified or the properties are reloaded
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/// - capture: Optional reference to ``OBSAVCapture`` instance
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void configure_property(obs_property_t *property, bool enable, bool visible, void *callback, OBSAVCapture *capture);
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/// Generic callback handler for changed properties. Will update all properties of an OBSAVCapture source at once
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/// - Parameters:
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/// - capture: Pointer to ``OBSAVCapture`` instance
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/// - properties: Pointer to properties struct associated with the source
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/// - property: Pointer to the property that the callback is attached to
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/// - settings: Pointer to settings associated with the source
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/// - Returns: Always returns true
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bool properties_changed(OBSAVCapture *capture, obs_properties_t *properties, obs_property_t *property,
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obs_data_t *settings);
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/// Callback handler for preset changes.
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/// - Parameters:
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/// - capture: Pointer to ``OBSAVCapture`` instance
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/// - properties: Pointer to properties struct associated with the source
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/// - property: Pointer to the property that the callback is attached to
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/// - settings: Pointer to settings associated with the source
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/// - Returns: Always returns true
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bool properties_changed_preset(OBSAVCapture *capture, obs_properties_t *properties, obs_property_t *property,
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obs_data_t *settings);
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/// Callback handler for changing preset usage for an OBSAVCapture source. Switches between preset-based configuration and manual configuration
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/// - Parameters:
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/// - capture: Pointer to ``OBSAVCapture`` instance
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/// - properties: Pointer to properties struct associated with the source
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/// - property: Pointer to the property that the callback is attached to
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/// - settings: Pointer to settings associated with the source
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/// - Returns: Always returns true
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bool properties_changed_use_preset(OBSAVCapture *capture, obs_properties_t *properties, obs_property_t *property,
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obs_data_t *settings);
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/// Updates preset property with description-value-pairs of presets supported by the currently selected device
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/// - Parameters:
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/// - capture: Pointer to ``OBSAVCapture`` instance
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/// - property: Pointer to the property that the callback is attached to
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/// - settings: Pointer to settings associated with the source
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/// - Returns: Always returns true
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bool properties_update_preset(OBSAVCapture *capture, obs_property_t *property, obs_data_t *settings);
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/// Updates device property with description-value-pairs of devices available via CoreMediaIO
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/// - Parameters:
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/// - capture: Pointer to ``OBSAVCapture`` instance
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/// - property: Pointer to the property that the callback is attached to
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/// - settings: Pointer to settings associated with the source
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/// - Returns: Always returns true
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bool properties_update_device(OBSAVCapture *capture, obs_property_t *property, obs_data_t *settings);
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/// Updates available values for all properties required in manual device configuration.
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///
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/// Properties updated by this call include:
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/// * Resolutions
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/// * Frame rates and frame rate ranges
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/// * Color formats
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/// * Color range
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///
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/// In CoreMediaIO color format, resolution and frame rate ranges are always coupled into a single format, while color range is always contained in the color format. The formats are thus compiled and de-duplicated to create a selection of all properties.
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///
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/// Frame rate ranges will be limited to ranges only available for a specific combination of resolution and color format.
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///
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/// - Parameters:
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/// - capture: Pointer to ``OBSAVCapture`` instance
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/// - property: Pointer to the property that the callback is attached to
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/// - settings: Pointer to settings associated with the source
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/// - Returns: Always returns true
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bool properties_update_config(OBSAVCapture *capture, obs_properties_t *properties, obs_data_t *settings);
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