Increase the maximum number of audio channels

This fixes #10, as Scaler was reporting 64 inputs.

CHANGELOG.md

@@ -24,6 +24,7 @@ Versioning](https://semver.org/spec/v2.0.0.html).
   though. Fixes #3.
 - Changed Wine prefix detection to be relative to the plugin's `.dll` file,
   rather than the loaded `.so` file.
+- Increased the maximum number of audio channels from 32 to 256.
 - Clarified the error that appears when we're unable to load the `.dll`.
 
 ### Fixed

src/common/serialization.h

@@ -32,9 +32,11 @@
 // These constants are limits used by bitsery
 
 /**
- * The maximum number of audio channels supported.
+ * The maximum number of audio channels supported. Some plugins report a huge
+ * amount of input channels, even though they don't even process any incoming
+ * audio.
  */
-constexpr size_t max_audio_channels = 32;
+constexpr size_t max_audio_channels = 256;
 /**
  * The maximum number of samples in a buffer.
  */