Put Reader, Writer inside "stream" namespace.

firmware/application/capture_thread.cpp

@@ -75,7 +75,7 @@ StreamOutput::~StreamOutput() {
 Thread* CaptureThread::thread = nullptr;
 
 CaptureThread::CaptureThread(
-	std::unique_ptr<Writer> writer,
+	std::unique_ptr<stream::Writer> writer,
 	size_t write_size,
 	size_t buffer_count,
 	std::function<void()> success_callback,

firmware/application/capture_thread.hpp

@@ -36,7 +36,7 @@
 class CaptureThread {
 public:
 	CaptureThread(
-		std::unique_ptr<Writer> writer,
+		std::unique_ptr<stream::Writer> writer,
 		size_t write_size,
 		size_t buffer_count,
 		std::function<void()> success_callback,
@@ -54,7 +54,7 @@ private:
 	static constexpr auto event_mask_loop_wake = EVENT_MASK(0);
 
 	CaptureConfig config;
-	std::unique_ptr<Writer> writer;
+	std::unique_ptr<stream::Writer> writer;
 	std::function<void()> success_callback;
 	std::function<void(File::Error)> error_callback;
 	static Thread* thread;

firmware/application/io.hpp

@@ -23,6 +23,8 @@
 
 #include "file.hpp"
 
+namespace stream {
+
 class Reader {
 public:
 	virtual File::Result<File::Size> read(void* const buffer, const File::Size bytes) = 0;
@@ -34,3 +36,5 @@ public:
 	virtual File::Result<File::Size> write(const void* const buffer, const File::Size bytes) = 0;
 	virtual ~Writer() = default;
 };
+
+} /* namespace stream */

firmware/application/io_file.hpp

@@ -28,7 +28,7 @@
 
 #include <cstdint>
 
-class FileWriter : public Writer {
+class FileWriter : public stream::Writer {
 public:
 	FileWriter() = default;
 

firmware/application/ui_record_view.cpp

@@ -117,7 +117,7 @@ void RecordView::start() {
 		return;
 	}
 
-	std::unique_ptr<Writer> writer;
+	std::unique_ptr<stream::Writer> writer;
 	switch(file_type) {
 	case FileType::WAV:
 		{