Clamp the default buffer size to what the device supports

CHANGELOG.md

@@ -52,6 +52,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed sources to detect parameter updates after mid-span seeks.
 - Fixed `Stoppable` and `Skippable` not signaling exhaustion.
 - Fixed `SpatialAudio` left and write channel swapping
+- Fixed playback on devices that cap the buffer size below the default we aim for, such as bluetooth outputs.
 
 ## Version [0.22.2] (2026-03-05)
 

src/stream.rs

@@ -220,7 +220,12 @@ impl DeviceSinkBuilder {
 
         // aim for 50ms of audio
         let sample_rate = device.config.sample_rate().get();
-        let safe_buffer_size = nearest_multiple_of_two(sample_rate / (1000 / 50));
+        let mut safe_buffer_size = nearest_multiple_of_two(sample_rate / (1000 / 50));
+        // Opening fails on a fixed size outside the device's range, and
+        // bluetooth outputs cap it well below 50ms.
+        if let cpal::SupportedBufferSize::Range { min, max } = default_config.buffer_size() {
+            safe_buffer_size = safe_buffer_size.clamp(*min, *max);
+        }
 
         // This is suboptimal, the builder might still change the sample rate or
         // channel count which would throw the buffer size off. We have fixed