feat: add configuration options for captured frames (#57)

src/stream/configuration/captured_frames.rs

@@ -0,0 +1,65 @@
+use core_foundation::error::CFError;
+use core_media_rs::cm_time::CMTime;
+use objc::{sel, sel_impl};
+
+use super::internal::SCStreamConfiguration;
+use crate::utils::objc::{get_property, set_property};
+
+impl SCStreamConfiguration {
+    /// Sets the queueDepth of this [`SCStreamConfiguration`].
+    ///
+    /// # Errors
+    ///
+    /// This function will return an error if .
+    pub fn set_queue_depth(mut self, queue_depth: u32) -> Result<Self, CFError> {
+        set_property(&mut self, sel!(setQueueDepth:), queue_depth)?;
+        Ok(self)
+    }
+    pub fn get_queue_depth(&self) -> u32 {
+        get_property(self, sel!(queueDepth))
+    }
+
+    /// Sets the minimumFrameInterval of this [`SCStreamConfiguration`].
+    ///
+    /// # Errors
+    ///
+    /// This function will return an error if .
+    pub fn set_minimum_frame_interval(mut self, cm_time: &CMTime) -> Result<Self, CFError> {
+        set_property(&mut self, sel!(setMinimumFrameInterval:), cm_time)?;
+        Ok(self)
+    }
+    pub fn get_minimum_frame_interval(&self) -> CMTime {
+        get_property(self, sel!(minimumFrameInterval))
+    }
+}
+
+#[cfg(test)]
+mod sc_stream_configuration_test {
+    use core_foundation::error::CFError;
+    use core_media_rs::cm_time::CMTime;
+
+    use super::SCStreamConfiguration;
+
+    #[test]
+    fn test_setters_and_getters() -> Result<(), CFError> {
+        let cm_time = CMTime {
+            value: 4,
+            timescale: 1,
+            flags: 1,
+            epoch: 1,
+        };
+        let queue_depth = 10;
+        let config = SCStreamConfiguration::new()
+            .set_queue_depth(queue_depth)?
+            .set_minimum_frame_interval(&cm_time)?;
+
+        assert!(config.get_queue_depth() == queue_depth);
+
+        let acquired_cm_time = config.get_minimum_frame_interval();
+        assert!(acquired_cm_time.value == cm_time.value);
+        assert!(acquired_cm_time.timescale == cm_time.timescale);
+        assert!(acquired_cm_time.flags == cm_time.flags);
+        assert!(acquired_cm_time.epoch == cm_time.epoch);
+        Ok(())
+    }
+}

src/stream/configuration/mod.rs

@@ -4,8 +4,9 @@ pub mod audio;
 pub mod dimensions;
 pub mod colors;
 pub mod pixel_format;
+pub mod captured_frames;
 
-#[allow(clippy::module_name_repetitions)] 
+#[allow(clippy::module_name_repetitions)]
 pub use internal::SCStreamConfiguration;
 impl SCStreamConfiguration {
     #[must_use]