Glenn Maynard
82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
/* RageSoundReader_Resample_Fast - interface for libresample. */
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#ifndef RAGE_SOUND_READER_RESAMPLE_GOOD_H
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#define RAGE_SOUND_READER_RESAMPLE_GOOD_H
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#include "RageSoundReader.h"
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#include "RageSoundReader_Resample.h"
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/* This class changes the sampling rate of a sound. */
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class RageSoundReader_Resample_Good: public RageSoundReader_Resample
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{
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public:
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/* We own source. */
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void Open(SoundReader *source);
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int GetLength() const;
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int GetLength_Fast() const;
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int SetPosition_Accurate(int ms);
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int SetPosition_Fast(int ms);
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int Read(char *buf, unsigned len);
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RageSoundReader_Resample_Good();
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virtual ~RageSoundReader_Resample_Good();
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SoundReader *Copy() const;
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/* Change the actual sample rate of a sound. */
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void SetSampleRate( int hz );
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void SetHighQuality( bool hq ) { HighQuality = hq; }
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int GetSampleRate() const { return samplerate; }
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unsigned GetNumChannels() const { return source->GetNumChannels(); }
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bool IsStreamingFromDisk() const { return source->IsStreamingFromDisk(); }
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enum { BUFSIZE = 4096 };
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private:
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SoundReader *source;
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bool HighQuality;
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int samplerate;
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void *empty_resamp;
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struct resample_channel
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{
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resample_channel(): resamp(NULL) { }
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void *resamp;
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float inbuf[BUFSIZE];
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};
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vector<resample_channel> resamplers; /* one per channel */
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int BufSamples;
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bool eof;
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void Reset();
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void ReopenResampler();
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float GetFactor() const;
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bool FillBuf();
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};
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#endif
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/*
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* Copyright (c) 2003 Glenn Maynard
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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