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Oversample (#1336)

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* WIP Oversample cleanup

* WIP

* WIP

* WIP dynamic interpolation

* WIP cleanup

* Fix math errors

* Add some optional assertions

* Add support for x32 interpolation

* Update proc_replay.cpp

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This commit is contained in:
Kyle Reed
2023-08-02 12:59:26 -07:00
committed by GitHub
parent e2ad0a1b1a
commit 37386c29cb
20 changed files with 272 additions and 169 deletions
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26
firmware/baseband/proc_capture.cpp
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@@ -66,19 +66,9 @@ void CaptureProcessor::on_message(const Message* const message) {
channel_spectrum.on_message(message);
break;
case Message::ID::SamplerateConfig: {
auto config = reinterpret_cast<const SamplerateConfigMessage*>(message);
baseband_fs = config->sample_rate;
update_for_rate_change();
case Message::ID::SampleRateConfig:
sample_rate_config(*reinterpret_cast<const SampleRateConfigMessage*>(message));
break;
}
case Message::ID::OversampleRateConfig: {
auto config = reinterpret_cast<const OversampleRateConfigMessage*>(message);
oversample_rate = config->oversample_rate;
update_for_rate_change();
break;
}
case Message::ID::CaptureConfig:
capture_config(*reinterpret_cast<const CaptureConfigMessage*>(message));
@@ -89,13 +79,15 @@ void CaptureProcessor::on_message(const Message* const message) {
}
}
void CaptureProcessor::update_for_rate_change() {
void CaptureProcessor::sample_rate_config(const SampleRateConfigMessage& message) {
baseband_fs = message.sample_rate * toUType(message.oversample_rate);
oversample_rate = message.oversample_rate;
baseband_thread.set_sampling_rate(baseband_fs);
auto decim_0_factor = oversample_rate == OversampleRate::Rate8x
auto decim_0_factor = oversample_rate == OversampleRate::x8
? decim_0_4.decimation_factor
: decim_0_8.decimation_factor;
size_t decim_0_output_fs = baseband_fs / decim_0_factor;
size_t decim_1_input_fs = decim_0_output_fs;
@@ -119,10 +111,10 @@ void CaptureProcessor::capture_config(const CaptureConfigMessage& message) {
buffer_c16_t CaptureProcessor::decim_0_execute(const buffer_c8_t& src, const buffer_c16_t& dst) {
switch (oversample_rate) {
case OversampleRate::Rate8x:
case OversampleRate::x8:
return decim_0_4.execute(src, dst);
case OversampleRate::Rate16x:
case OversampleRate::x16:
return decim_0_8.execute(src, dst);
default: