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Move a few member variables to stack/constants.

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This commit is contained in:
Jared Boone
2015-11-10 15:10:52 -08:00
parent 791b2a9762
commit 99871dcb84
2 changed files with 10 additions and 9 deletions
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10
firmware/baseband/channel_decimator.cpp
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@@ -22,6 +22,16 @@
#include "channel_decimator.hpp" #include "channel_decimator.hpp"
buffer_c16_t ChannelDecimator::execute_decimation(buffer_c8_t buffer) { buffer_c16_t ChannelDecimator::execute_decimation(buffer_c8_t buffer) {
const buffer_c16_t work_baseband_buffer {
work_baseband.data(),
work_baseband.size()
};
const buffer_s16_t work_audio_buffer {
(int16_t*)work_baseband.data(),
sizeof(work_baseband) / sizeof(int16_t)
};
/* 3.072MHz complex<int8_t>[2048], [-128, 127] /* 3.072MHz complex<int8_t>[2048], [-128, 127]
* -> Shift by -fs/4 * -> Shift by -fs/4
* -> 3rd order CIC: -0.1dB @ 0.028fs, -1dB @ 0.088fs, -60dB @ 0.468fs * -> 3rd order CIC: -0.1dB @ 0.028fs, -1dB @ 0.088fs, -60dB @ 0.468fs

9
firmware/baseband/channel_decimator.hpp
View File

@@ -62,15 +62,6 @@ public:
private: private:
std::array<complex16_t, 1024> work_baseband; std::array<complex16_t, 1024> work_baseband;
const buffer_c16_t work_baseband_buffer {
work_baseband.data(),
work_baseband.size()
};
const buffer_s16_t work_audio_buffer {
(int16_t*)work_baseband.data(),
sizeof(work_baseband) / sizeof(int16_t)
};
//const bool fs_over_4_downconvert = true; //const bool fs_over_4_downconvert = true;
dsp::decimate::TranslateByFSOver4AndDecimateBy2CIC3 translate; dsp::decimate::TranslateByFSOver4AndDecimateBy2CIC3 translate;