Move the linear resampler to RageSoundReader_Resample_Fast.

Add RageSoundReader_Resample_Good, using libresample.
2003-09-24 22:31:34 +00:00
parent 83c58f3b3a
commit 6954e0facf
6 changed files with 440 additions and 113 deletions
@@ -0,0 +1,52 @@
+#ifndef RAGE_SOUND_READER_RESAMPLE_GOOD
+#define RAGE_SOUND_READER_RESAMPLE_GOOD
+
+#include "RageSoundReader.h"
+#include "RageSoundReader_Resample.h"
+
+/* This class changes the sampling rate of a sound. */
+class RageSoundReader_Resample_Good: public RageSoundReader_Resample
+{
+	enum { BUFSIZE = 4096 };
+
+	SoundReader *source;
+	bool HighQuality;
+	int samplerate;
+
+	/* Mutable hell, since GetLength pretends to be const but isn't yet. */
+	mutable	void *resamp[2];
+	mutable	void *empty_resamp[2];
+	float inbuf[2][BUFSIZE];
+	mutable	int BufSamples;
+	mutable	bool eof;
+
+	void Reset() const;
+	void FlushResampler() const;
+	void ReopenResampler() const;
+	float GetFactor() const;
+	bool FillBuf();
+
+public:
+	/* We own source. */
+	void Open(SoundReader *source);
+	int GetLength() const;
+	int GetLength_Fast() const;
+	int SetPosition_Accurate(int ms);
+	int SetPosition_Fast(int ms);
+	int Read(char *buf, unsigned len);
+	RageSoundReader_Resample_Good();
+	virtual ~RageSoundReader_Resample_Good();
+	SoundReader *Copy() const;
+
+	/* Change the actual sample rate of a sound. */
+	void SetSampleRate( int hz );
+	void SetHighQuality( bool hq ) { HighQuality = hq; }
+
+	int GetSampleRate() const { return samplerate; }
+};
+
+#endif
+/*
+ * Copyright (c) 2003 by the person(s) listed below.  All rights reserved.
+ *	Glenn Maynard
+ */