15b4baba28
- minimize RAM usage of all components - use both IRAM and DRAM in player component so we can buffer up to 1s on modules without SPI RAM - support fragemented pcm chunks so we can use all available RAM if there isn't a big enough block available but still enough HEAP - reinclude all components from jorgen's master branch - add custom i2s driver to get a precise timing of initial sync - change wrong usage of esp_timer for latency measurement of snapcast protocol - add player component
47 lines
757 B
C
47 lines
757 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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} 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);
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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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#endif /* _DSP_PROCESSOR_H_ */
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