d2a21f99ac
dsp processor now will process smaller chunks of audio at a time and loop over the audio data array which results in a much smaller RAM usage but probably longer execution times of IIR filters. Signed-off-by: Karl Osterseher <karli_o@gmx.at>
49 lines
835 B
C
49 lines
835 B
C
#ifndef _DSP_PROCESSOR_H_
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#define _DSP_PROCESSOR_H_
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typedef enum dspFlows {
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dspfStereo,
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dspfBiamp,
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dspf2DOT1,
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dspfFunkyHonda,
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dspfBassBoost,
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dspfEQBassTreble,
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} dspFlows_t;
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enum filtertypes {
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LPF,
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HPF,
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BPF,
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BPF0DB,
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NOTCH,
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ALLPASS360,
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ALLPASS180,
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PEAKINGEQ,
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LOWSHELF,
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HIGHSHELF
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};
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// Process node
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typedef struct ptype {
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int filtertype;
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float freq;
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float gain;
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float q;
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float *in, *out;
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float coeffs[5];
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float w[2];
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} ptype_t;
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// Process flow
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typedef struct pnode {
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ptype_t process;
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struct pnode *next;
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} pnode_t;
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void dsp_setup_flow(double freq, uint32_t samplerate, uint32_t chunkInFrames);
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int dsp_processor(char *audio, size_t chunk_size, dspFlows_t dspFlow);
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void dsp_set_xoverfreq(uint8_t, uint8_t, uint32_t);
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void dsp_set_vol(double volume);
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#endif /* _DSP_PROCESSOR_H_ */
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