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Support for 1.25MHz capture (#1418)

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* Advanced draft decim /4 just waterfall ok

* apply some Kall's corrections + formatting

* Tidy up both decim_factors

* New refine optimizations

* Format issues

* more format issues ...mmmm

* comments update

* WIP Cleanup

* WIP

* WIP - add variant

* Use std::visit to dispatch MultiDecimator -- fluent API

* Clean up comments

* Merge next and fix compilation

* Fix odd loop in BlockDecimator

* Clean up spectrum math

* Descibe spectrum update math better, more clear math.

* Apply spectrum interval correction at 1.5M

* Increase replay buffer to handle x4 ovs

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Co-authored-by: Brumi-2021 <ea3hqj@gmail.com>
This commit is contained in:
Kyle Reed
2023-08-29 10:26:38 -07:00
committed by GitHub
parent e7e1bedcad
commit de81156223
11 changed files with 170 additions and 189 deletions
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20
firmware/application/ui_record_view.cpp
View File

@@ -107,13 +107,9 @@ uint32_t RecordView::set_sampling_rate(uint32_t new_sampling_rate) {
auto oversample_rate = get_oversample_rate(new_sampling_rate);
auto actual_sampling_rate = new_sampling_rate * toUType(oversample_rate);
/* We are changing "REC" icon background to yellow in BW rec Options >1Mhz
* > 1Mhz BW options , we are NOT recording full IQ .C16 files (those files has some periodical missing dropped samples).
* Those recorded files, has not the full IQ samples information, looks like decimated in file size.
* They are ok as recorded spectrum indication, but they should not be used by Replay app. (the voice speed will be accelerated)
* We keep original black background in all the correct IQ .C16 files BW's Options. */
if (actual_sampling_rate > 8'000'000) { // yellow REC button means not ok for REC, BW >1Mhz (BW from 12k5 till 1Mhz OK for REC and Replay)
// Change the "REC" icon background to yellow when the selected rate exceeds hardware limits.
// Above this threshold, samples will be dropped resulting incomplete capture files.
if (new_sampling_rate > 1'250'000) {
button_record.set_background(ui::Color::yellow());
} else {
button_record.set_background(ui::Color::black());
@@ -142,15 +138,7 @@ OversampleRate RecordView::get_oversample_rate(uint32_t sample_rate) {
if (file_type == FileType::WAV)
return OversampleRate::None;
auto rate = ::get_oversample_rate(sample_rate);
// Currently proc_capture only supports /8, /16, /32 for decimation.
if (rate < OversampleRate::x8) // clipping while /4 is not implemented yet (it will be used >1Mhz onwards when available)
rate = OversampleRate::x8;
else if (rate > OversampleRate::x64) // clipping while /128 is not implemented yet , (but it is not necessary for 12k5)
rate = OversampleRate::x64;
return rate;
return ::get_oversample_rate(sample_rate);
}
// Setter for datetime and frequency filename