Signalsmith-Audio/signalsmith-stretch
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CMake for example command-line util

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Syl Morrison 2025-01-29 11:51:00 +00:00 committed by Geraint Luff
parent 27d580fceb
commit 9bffc80ec8
3 changed files with 17 additions and 4 deletions
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13
CMakeLists.txt Normal file
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@ -0,0 +1,13 @@
cmake_minimum_required(VERSION 3.24)
project(example-cmd VERSION 1.0.0)
set(CMAKE_CXX_STANDARD 11)
add_executable(stretch ${CMAKE_CURRENT_SOURCE_DIR}/cmd/main.cpp)
#if(WIN32)
# find_package(IPP)
# if(IPP_FOUND)
# message(STATUS "Found ipp!")
# target_link_libraries(example-cmd PRIVATE IPP::ippcore IPP::ipps IPP::ippi)
# target_compile_definitions(stretch PRIVATE SIGNALSMITH_USE_IPP)
# endif()
#endif()

2
cmd/main.cpp
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@ -28,7 +28,7 @@ int main(int argc, char* argv[]) {
outWav.sampleRate = inWav.sampleRate; outWav.sampleRate = inWav.sampleRate;
int outputLength = std::round(inputLength*time); int outputLength = std::round(inputLength*time);
signalsmith::stretch::SignalsmithStretch<float> stretch; signalsmith::stretch::SignalsmithStretch<float, std::mt19937> stretch;
stretch.presetDefault(inWav.channels, inWav.sampleRate); stretch.presetDefault(inWav.channels, inWav.sampleRate);
stretch.setTransposeSemitones(semitones, tonality/inWav.sampleRate); stretch.setTransposeSemitones(semitones, tonality/inWav.sampleRate);

6
signalsmith-stretch.h
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@ -12,7 +12,7 @@ SIGNALSMITH_DSP_VERSION_CHECK(1, 6, 0); // Check version is compatible
namespace signalsmith { namespace stretch { namespace signalsmith { namespace stretch {
template<typename Sample=float> template<typename Sample=float, class RandomEngine=std::default_random_engine>
struct SignalsmithStretch { struct SignalsmithStretch {
SignalsmithStretch() : randomEngine(std::random_device{}()) {} SignalsmithStretch() : randomEngine(std::random_device{}()) {}
@ -394,8 +394,8 @@ private:
Prediction * predictionsForChannel(int c) { Prediction * predictionsForChannel(int c) {
return channelPredictions.data() + c*bands; return channelPredictions.data() + c*bands;
} }
std::default_random_engine randomEngine; RandomEngine randomEngine;
void processSpectrum(bool newSpectrum, Sample timeFactor) { void processSpectrum(bool newSpectrum, Sample timeFactor) {
timeFactor = std::max<Sample>(timeFactor, 1/maxCleanStretch); timeFactor = std::max<Sample>(timeFactor, 1/maxCleanStretch);