--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/foosdk/sdk/foobar2000/helpers/writer_wav.h	Mon Jan 05 02:15:46 2026 -0500
@@ -0,0 +1,55 @@
+#pragma once
+
+#ifdef _WIN32
+#include <mmreg.h>
+#endif
+
+#include <SDK/audio_postprocessor.h>
+
+struct wavWriterSetup_t
+{
+	unsigned m_bps,m_bpsValid,m_samplerate,m_channels,m_channel_mask;
+	bool m_float,m_dither, m_wave64;
+	bool m_rf64_implicit, m_rf64_explicit;
+
+    
+	void initialize(const audio_chunk & p_chunk,unsigned p_bps,bool p_float,bool p_dither, bool p_wave64 = false);
+	void initialize2(const audio_chunk & p_chunk,unsigned p_bps, unsigned p_bpsValid,bool p_float,bool p_dither, bool p_wave64 = false);
+    void initialize3(const audio_chunk::spec_t & spec, unsigned bps, unsigned bpsValid, bool bFloat, bool bDither, bool bWave64 = false);
+    
+#ifdef _WAVEFORMATEX_
+	void setup_wfx(WAVEFORMATEX & p_wfx);
+#endif
+#ifdef _WAVEFORMATEXTENSIBLE_
+	void setup_wfxe(WAVEFORMATEXTENSIBLE & p_wfx);
+#endif
+	bool needWFXE() const;
+};
+
+class CWavWriter
+{
+public:
+	void open(const char * p_path, const wavWriterSetup_t & p_setup, abort_callback & p_abort);
+	void open(service_ptr_t<file> p_file, const wavWriterSetup_t & p_setup, abort_callback & p_abort);
+	void write(const audio_chunk & p_chunk,abort_callback & p_abort);
+	void write_raw( const void * raw, size_t rawSize, abort_callback & p_abort );
+	void finalize(abort_callback & p_abort);
+	void close();
+	bool is_open() const { return m_file.is_valid(); }
+	audio_chunk::spec_t get_spec() const;
+private:
+	size_t align(abort_callback & abort);
+	void writeSize(t_uint64 size, abort_callback & abort);
+	bool is64() const {return m_setup.m_wave64;}
+	t_uint32 chunkOverhead() const {return is64() ? 24 : 8;}
+	void writeID(const GUID & id, abort_callback & abort);
+	service_ptr_t<file> m_file;
+	service_ptr_t<audio_postprocessor> m_postprocessor;
+	wavWriterSetup_t m_setup;
+	bool m_wfxe = false;
+	t_uint64 m_offset_fix1 = 0,m_offset_fix2 = 0,m_offset_fix1_delta = 0,m_bytes_written = 0;
+	uint64_t m_ds64_at = 0;
+	mem_block_container_aligned_incremental_impl<16> m_postprocessor_output;
+};
+
+file::ptr makeLiveWAVFile( const wavWriterSetup_t & setup, file::ptr data );