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From 828c13c4930e072a9eea0eacdf14bce59e32522a Mon Sep 17 00:00:00 2001
From: DiGMi <github@digmi.org>
Date: Fri, 10 Sep 2021 14:06:34 +0300
Subject: [PATCH 29/31] Add support for complex double (cf64)
---
README.md | 1 +
src/inputsource.cpp | 19 +++++++++++++++++++
2 files changed, 20 insertions(+)
diff --git a/README.md b/README.md
index eeee898..6ad78fe 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,7 @@ Build instructions can be found here: https://github.com/miek/inspectrum/wiki/Bu
inspectrum supports the following file types:
* `*.sigmf-meta, *.sigmf-data` - SigMF recordings
* `*.cf32`, `*.cfile` - Complex 32-bit floating point samples (GNU Radio, osmocom_fft)
+ * `*.cf64` - Complex 64-bit floating point samples
* `*.cs16` - Complex 16-bit signed integer samples (BladeRF)
* `*.cs8` - Complex 8-bit signed integer samples (HackRF)
* `*.cu8` - Complex 8-bit unsigned integer samples (RTL-SDR)
diff --git a/src/inputsource.cpp b/src/inputsource.cpp
index 68181c0..67743fb 100644
--- a/src/inputsource.cpp
+++ b/src/inputsource.cpp
@@ -52,6 +52,22 @@ public:
}
};
+class ComplexF64SampleAdapter : public SampleAdapter {
+public:
+ size_t sampleSize() override {
+ return sizeof(std::complex<double>);
+ }
+
+ void copyRange(const void* const src, size_t start, size_t length, std::complex<float>* const dest) override {
+ auto s = reinterpret_cast<const std::complex<double>*>(src);
+ std::transform(&s[start], &s[start + length], dest,
+ [](const std::complex<double>& v) -> std::complex<float> {
+ return { static_cast<float>(v.real()) , static_cast<float>(v.imag()) };
+ }
+ );
+ }
+};
+
class ComplexS16SampleAdapter : public SampleAdapter {
public:
size_t sampleSize() override {
@@ -319,6 +335,9 @@ void InputSource::openFile(const char *filename)
if ((suffix == "cfile") || (suffix == "cf32") || (suffix == "fc32")) {
sampleAdapter = std::make_unique<ComplexF32SampleAdapter>();
}
+ else if ((suffix == "cf64") || (suffix == "fc64")) {
+ sampleAdapter = std::make_unique<ComplexF64SampleAdapter>();
+ }
else if ((suffix == "cs16") || (suffix == "sc16") || (suffix == "c16")) {
sampleAdapter = std::make_unique<ComplexS16SampleAdapter>();
}
--
2.35.1
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