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Added an audio FFT view in Wideband FM receive

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Tried speeding up fill_rectangle for clearing the waveform widget
This commit is contained in:
furrtek 2018-05-21 18:46:48 +01:00
parent b11c3c94b6
commit b813b32593
19 changed files with 259 additions and 38 deletions
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17
firmware/baseband/proc_wfm_audio.hpp
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@ -27,8 +27,10 @@
#include "baseband_thread.hpp"
#include "rssi_thread.hpp"
#include "dsp_types.hpp"
#include "dsp_decimate.hpp"
#include "dsp_demodulate.hpp"
#include "block_decimator.hpp"
#include "audio_output.hpp"
#include "spectrum_collector.hpp"
@ -56,6 +58,12 @@ private:
sizeof(dst) / sizeof(int16_t)
};
std::array<complex16_t, 64> complex_audio { };
const buffer_c16_t complex_audio_buffer {
complex_audio.data(),
complex_audio.size()
};
dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0 { };
dsp::decimate::FIRC16xR16x16Decim2 decim_1 { };
uint32_t channel_filter_pass_f = 0;
@ -67,6 +75,14 @@ private:
dsp::decimate::FIR64AndDecimateBy2Real audio_filter { };
AudioOutput audio_output { };
// For fs=96kHz FFT streaming
BlockDecimator<complex16_t, 256> audio_spectrum_decimator { 1 };
AudioSpectrum fifo_data[1 << AudioSpectrumConfigMessage::fifo_k] { };
AudioSpectrumFIFO fifo { fifo_data, AudioSpectrumConfigMessage::fifo_k };
std::array<std::complex<float>, 256> audio_spectrum { };
uint32_t refresh_timer { 0 };
uint32_t fft_stage { 0 };
SpectrumCollector channel_spectrum { };
size_t spectrum_interval_samples = 0;
@ -75,6 +91,7 @@ private:
bool configured { false };
void configure(const WFMConfigureMessage& message);
void capture_config(const CaptureConfigMessage& message);
void post_message(const buffer_c16_t& data);
};
#endif/*__PROC_WFM_AUDIO_H__*/