bcdd1cee10
This converter always outputs floats, and uses energy-preserving scaling.
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
#ifndef CONVERTER_H
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#define CONVERTER_H
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#include "alMain.h"
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#include "alu.h"
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#ifdef __cpluspluc
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extern "C" {
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#endif
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typedef struct SampleConverter {
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enum DevFmtType mSrcType;
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enum DevFmtType mDstType;
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ALsizei mNumChannels;
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ALsizei mSrcTypeSize;
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ALsizei mDstTypeSize;
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ALint mSrcPrepCount;
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ALsizei mFracOffset;
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ALsizei mIncrement;
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ResamplerFunc mResample;
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alignas(16) ALfloat mSrcSamples[BUFFERSIZE];
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alignas(16) ALfloat mDstSamples[BUFFERSIZE];
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struct {
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alignas(16) ALfloat mPrevSamples[MAX_PRE_SAMPLES+MAX_POST_SAMPLES];
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} Chan[];
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} SampleConverter;
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SampleConverter *CreateSampleConverter(enum DevFmtType srcType, enum DevFmtType dstType, ALsizei numchans, ALsizei srcRate, ALsizei dstRate);
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void DestroySampleConverter(SampleConverter **converter);
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ALsizei SampleConverterInput(SampleConverter *converter, const ALvoid **src, ALsizei *srcframes, ALvoid *dst, ALsizei dstframes);
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ALsizei SampleConverterAvailableOut(SampleConverter *converter, ALsizei srcframes);
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typedef struct ChannelConverter {
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enum DevFmtType mSrcType;
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enum DevFmtChannels mSrcChans;
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enum DevFmtChannels mDstChans;
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} ChannelConverter;
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ChannelConverter *CreateChannelConverter(enum DevFmtType srcType, enum DevFmtChannels srcChans, enum DevFmtChannels dstChans);
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void DestroyChannelConverter(ChannelConverter **converter);
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void ChannelConverterInput(ChannelConverter *converter, const ALvoid *src, ALfloat *dst, ALsizei frames);
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#ifdef __cpluspluc
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}
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#endif
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#endif /* CONVERTER_H */
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