fix(aaudio): ensure consistent callback buffer sizes with double-buffering

Author: roderickvd

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 - Add `Sample::bits_per_sample` method.
 - Update `audio_thread_priority` to 0.34.
+- AAudio: Configure buffer to ensure consistent callback buffer sizes.
 - ALSA: Improve `BufferSize::Fixed` latency precision and audio callback performance.
 - ALSA: Change `BufferSize::Default` to use the device defaults.
 - ALSA: Change card enumeration to work like `aplay -L` does.

src/host/aaudio/mod.rs

@@ -217,7 +217,9 @@ fn configure_for_device(
     builder = builder.sample_rate(config.sample_rate.0.try_into().unwrap());
     match &config.buffer_size {
         BufferSize::Default => builder,
-        BufferSize::Fixed(size) => builder.buffer_capacity_in_frames(*size as i32),
+        BufferSize::Fixed(size) => builder
+            .frames_per_data_callback(*size as i32)
+            .buffer_capacity_in_frames((*size * 2) as i32), // Double-buffering
     }
 }