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Further template BlockDecimator by element type, use for audio buffer.

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Appropriating for use as a buffer accumulator that will save up enough audio samples to put into an audio DMA buffer.
This commit is contained in:
Jared Boone 2016-01-29 19:25:08 -08:00
parent aead1d8798
commit a558565886
8 changed files with 23 additions and 20 deletions
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4
firmware/baseband/audio_output.hpp
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@ -27,6 +27,7 @@
#include "dsp_iir.hpp"
#include "dsp_squelch.hpp"
#include "block_decimator.hpp"
#include "audio_stats_collector.hpp"
#include <cstdint>
@ -43,6 +44,8 @@ public:
void write(const buffer_f32_t& audio);
private:
BlockDecimator<float, 32> block_buffer { 1 };
IIRBiquadFilter hpf;
IIRBiquadFilter deemph;
FMSquelch squelch;
@ -51,6 +54,7 @@ private:
uint64_t audio_present_history = 0;
void on_block(const buffer_f32_t& audio);
void fill_audio_buffer(const buffer_f32_t& audio);
void feed_audio_stats(const buffer_f32_t& audio);
};