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Partial refactor of channel filter frequency code.

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Move channel filter frequency determination to baseband side, where the filtering is determined and performed.
Add useful accessor methods to BlockDecimator.
This commit is contained in:
Jared Boone 2015-07-17 23:16:09 -07:00
parent ffc50785b7
commit 6f2cbd1ac5
4 changed files with 34 additions and 19 deletions
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26
firmware/baseband/block_decimator.hpp
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@ -32,26 +32,34 @@ class BlockDecimator {
public:
constexpr BlockDecimator(
const size_t factor
) : factor { factor }
) : factor_ { factor }
{
}
void set_input_sampling_rate(const uint32_t new_sampling_rate) {
if( new_sampling_rate != input_sampling_rate ) {
input_sampling_rate = new_sampling_rate;
if( new_sampling_rate != input_sampling_rate() ) {
input_sampling_rate_ = new_sampling_rate;
reset_state();
}
}
uint32_t input_sampling_rate() const {
return input_sampling_rate_;
}
void set_factor(const size_t new_factor) {
if( new_factor != factor ) {
factor = new_factor;
if( new_factor != factor() ) {
factor_ = new_factor;
reset_state();
}
}
size_t factor() const {
return factor_;
}
uint32_t output_sampling_rate() const {
return input_sampling_rate / factor;
return input_sampling_rate() / factor();
}
template<typename BlockCallback>
@ -68,7 +76,7 @@ public:
dst_i = 0;
}
src_i += factor;
src_i += factor();
}
src_i -= src.count;
@ -76,8 +84,8 @@ public:
private:
std::array<complex16_t, N> buffer;
uint32_t input_sampling_rate { 0 };
size_t factor { 1 };
uint32_t input_sampling_rate_ { 0 };
size_t factor_ { 1 };
size_t src_i { 0 };
size_t dst_i { 0 };