pax_global_header00006660000000000000000000000064137567606450014535gustar00rootroot0000000000000052 comment=68f1d1b4bcdd3ea6d9ab1b3769fda03bafa1dd44 inspectrum-0.2.3/000077500000000000000000000000001375676064500137305ustar00rootroot00000000000000inspectrum-0.2.3/.gitignore000066400000000000000000000000271375676064500157170ustar00rootroot00000000000000# Build outputs build/ inspectrum-0.2.3/.travis.yml000066400000000000000000000017311375676064500160430ustar00rootroot00000000000000language: c cache: apt sudo: required dist: bionic os: - linux - osx arch: - amd64 - ppc64le compiler: - gcc - clang matrix: exclude: # /usr/bin/gcc on OS X is clang, so it's not meaningful to build against both. - os: osx compiler: gcc - os: osx arch: ppc64le addons: apt: sources: # - ubuntu-sdk-team packages: - qtbase5-dev - qtdeclarative5-dev - libfftw3-dev - libliquid-dev before_install: - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; fi # cmake and pkg-config are already installed. - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install qt5 fftw liquid-dsp; fi script: - mkdir build - cd build - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export CMAKE_PREFIX_PATH=$(brew --prefix qt5)/lib/cmake; fi - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then DYLIB_SUFFIX=dylib; else DYLIB_SUFFIX=so; fi - CFLAGS="-g -Wall -Wextra -Werror -Wno-zero-length-array" cmake .. - make inspectrum-0.2.3/CMakeLists.txt000066400000000000000000000043101375676064500164660ustar00rootroot00000000000000cmake_minimum_required(VERSION 2.8.11) project(inspectrum CXX) enable_testing() set(CMAKE_AUTOMOC ON) set(CMAKE_INCLUDE_CURRENT_DIR ON) list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules) # For OSX - don't clear RPATH on install set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE) if (MSVC) #force std::complex<> typedefs in liquiddsp add_definitions(-D_LIBCPP_COMPLEX) #enable math definitions in math.h add_definitions(-D_USE_MATH_DEFINES) #build a graphical application without the console option(BUILD_WIN32 "Build win32 app, false for console" TRUE) if (BUILD_WIN32) set(EXE_ARGS WIN32) set(CMAKE_EXE_LINKER_FLAGS "/entry:mainCRTStartup ${CMAKE_EXE_LINKER_FLAGS}") endif (BUILD_WIN32) endif (MSVC) if (NOT CMAKE_CXX_FLAGS) set(CMAKE_CXX_FLAGS "-O2") endif (NOT CMAKE_CXX_FLAGS) # This only works in cmake >3.1 #set_property(TARGET inspectrum PROPERTY CXX_STANDARD 11) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11") list(APPEND inspectrum_sources abstractsamplesource.cpp amplitudedemod.cpp cursor.cpp cursors.cpp main.cpp fft.cpp frequencydemod.cpp mainwindow.cpp inputsource.cpp phasedemod.cpp plot.cpp plots.cpp plotview.cpp samplebuffer.cpp samplesource.cpp spectrogramcontrols.cpp spectrogramplot.cpp threshold.cpp traceplot.cpp tuner.cpp tunertransform.cpp util.cpp ) find_package(Qt5Widgets REQUIRED) find_package(Qt5Concurrent REQUIRED) find_package(FFTW REQUIRED) find_package(Liquid REQUIRED) include_directories( ${FFTW_INCLUDES} ${LIQUID_INCLUDES} ) add_executable(inspectrum ${EXE_ARGS} ${inspectrum_sources}) target_link_libraries(inspectrum Qt5::Core Qt5::Widgets Qt5::Concurrent ${FFTW_LIBRARIES} ${LIQUID_LIBRARIES} ) set(INSTALL_DEFAULT_BINDIR "bin" CACHE STRING "Appended to CMAKE_INSTALL_PREFIX") install(TARGETS inspectrum RUNTIME DESTINATION ${INSTALL_DEFAULT_BINDIR}) # Create uninstall target configure_file( ${PROJECT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake @ONLY) add_custom_target(uninstall ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake ) inspectrum-0.2.3/LICENSE000066400000000000000000001045051375676064500147420ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. 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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 17. Interpretation of Sections 15 and 16. If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. 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If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: {project} Copyright (C) {year} {fullname} This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . inspectrum-0.2.3/README.md000066400000000000000000000025201375676064500152060ustar00rootroot00000000000000# inspectrum inspectrum is a tool for analysing captured signals, primarily from software-defined radio receivers. ![inspectrum screenshot](/screenshot.jpg) ## Try it ### Prerequisites * cmake >= 2.8.11 * fftw 3.x * [liquid-dsp](https://github.com/jgaeddert/liquid-dsp) >= v1.3.0 * pkg-config * qt5 ### Build instructions Build instructions can be found here: https://github.com/miek/inspectrum/wiki/Build ### Run ./inspectrum [filename] ## Input inspectrum supports the following file types: * `*.cf32`, `*.cfile` - Complex 32-bit floating point samples (GNURadio, osmocom_fft) * `*.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) * `*.f32` - Real 32-bit floating point samples * `*.s16` - Real 16-bit signed integer samples * `*.s8` - Real 8-bit signed integer samples * `*.u8` - Real 8-bit unsigned integer samples If an unknown file extension is loaded, inspectrum will default to `*.cf32`. ## Features * Large (100GB+) file support * Spectrogram with zoom/pan * Plots of amplitude, frequency, phase and IQ samples * Cursors for measuring period, symbol rate and extracting symbols * Export of selected time period, filtered samples and demodulated data ## Contact * #inspectrum on freenode IRC inspectrum-0.2.3/abstractsamplesource.cpp000066400000000000000000000022461375676064500206660ustar00rootroot00000000000000/* * Copyright (C) 2017, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "abstractsamplesource.h" void AbstractSampleSource::subscribe(Subscriber *subscriber) { subscribers.insert(subscriber); } void AbstractSampleSource::invalidate() { for (auto subscriber : subscribers) { subscriber->invalidateEvent(); } } int AbstractSampleSource::subscriberCount() { return subscribers.size(); } void AbstractSampleSource::unsubscribe(Subscriber *subscriber) { subscribers.erase(subscriber); }inspectrum-0.2.3/abstractsamplesource.h000066400000000000000000000022711375676064500203310ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include #include #include "subscriber.h" class AbstractSampleSource { public: virtual ~AbstractSampleSource() {}; virtual std::type_index sampleType() = 0; void subscribe(Subscriber *subscriber); int subscriberCount(); void unsubscribe(Subscriber *subscriber); protected: virtual void invalidate(); private: std::set subscribers; }; inspectrum-0.2.3/amplitudedemod.cpp000066400000000000000000000022761375676064500174400ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "amplitudedemod.h" AmplitudeDemod::AmplitudeDemod(std::shared_ptr>> src) : SampleBuffer(src) { } void AmplitudeDemod::work(void *input, void *output, int count, size_t sampleid) { auto in = static_cast*>(input); auto out = static_cast(output); std::transform(in, in + count, out, [](std::complex s) { return std::norm(s) * 2.0f - 1.0f; }); } inspectrum-0.2.3/amplitudedemod.h000066400000000000000000000020211375676064500170710ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include "samplebuffer.h" class AmplitudeDemod : public SampleBuffer, float> { public: AmplitudeDemod(std::shared_ptr>> src); void work(void *input, void *output, int count, size_t sampleid) override; }; inspectrum-0.2.3/cmake/000077500000000000000000000000001375676064500150105ustar00rootroot00000000000000inspectrum-0.2.3/cmake/Modules/000077500000000000000000000000001375676064500164205ustar00rootroot00000000000000inspectrum-0.2.3/cmake/Modules/FindFFTW.cmake000066400000000000000000000015071375676064500207740ustar00rootroot00000000000000# - Find FFTW # Find the native FFTW includes and library # # FFTW_INCLUDES - where to find fftw3.h # FFTW_LIBRARIES - List of libraries when using FFTW. # FFTW_FOUND - True if FFTW found. if (FFTW_INCLUDES) # Already in cache, be silent set (FFTW_FIND_QUIETLY TRUE) endif (FFTW_INCLUDES) find_package(PkgConfig) pkg_check_modules(PC_FFTW QUIET fftw3f) find_path (FFTW_INCLUDES fftw3.h HINTS ${PC_FFTW_INCLUDEDIR} ${PC_FFTW_INCLUDE_DIRS}) find_library (FFTW_LIBRARIES NAMES fftw3f HINTS ${PC_FFTW_LIBDIR} ${PC_FFTW_LIBRARY_DIRS}) # handle the QUIETLY and REQUIRED arguments and set FFTW_FOUND to TRUE if # all listed variables are TRUE include (FindPackageHandleStandardArgs) find_package_handle_standard_args (FFTW DEFAULT_MSG FFTW_LIBRARIES FFTW_INCLUDES) mark_as_advanced (FFTW_LIBRARIES FFTW_INCLUDES) inspectrum-0.2.3/cmake/Modules/FindLiquid.cmake000066400000000000000000000013071375676064500214530ustar00rootroot00000000000000# - Find LIQUID # Find the native LIQUID includes and library # # LIQUID_INCLUDES - where to find LIQUID.h # LIQUID_LIBRARIES - List of libraries when using LIQUID. # LIQUID_FOUND - True if LIQUID found. if (LIQUID_INCLUDES) # Already in cache, be silent set (LIQUID_FIND_QUIETLY TRUE) endif (LIQUID_INCLUDES) find_path (LIQUID_INCLUDES liquid/liquid.h) find_library (LIQUID_LIBRARIES NAMES liquid) # handle the QUIETLY and REQUIRED arguments and set LIQUID_FOUND to TRUE if # all listed variables are TRUE include (FindPackageHandleStandardArgs) find_package_handle_standard_args (LIQUID DEFAULT_MSG LIQUID_LIBRARIES LIQUID_INCLUDES) #mark_as_advanced (LIQUID_LIBRARIES LIQUID_INCLUDES) inspectrum-0.2.3/cmake/cmake_uninstall.cmake.in000066400000000000000000000025321375676064500215720ustar00rootroot00000000000000# http://www.vtk.org/Wiki/CMake_FAQ#Can_I_do_.22make_uninstall.22_with_CMake.3F IF(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt") MESSAGE(FATAL_ERROR "Cannot find install manifest: \"@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt\"") ENDIF(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt") FILE(READ "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt" files) STRING(REGEX REPLACE "\n" ";" files "${files}") FOREACH(file ${files}) MESSAGE(STATUS "Uninstalling \"$ENV{DESTDIR}${file}\"") IF(EXISTS "$ENV{DESTDIR}${file}") EXEC_PROGRAM( "@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\"" OUTPUT_VARIABLE rm_out RETURN_VALUE rm_retval ) IF(NOT "${rm_retval}" STREQUAL 0) MESSAGE(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"") ENDIF(NOT "${rm_retval}" STREQUAL 0) ELSEIF(IS_SYMLINK "$ENV{DESTDIR}${file}") EXEC_PROGRAM( "@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\"" OUTPUT_VARIABLE rm_out RETURN_VALUE rm_retval ) IF(NOT "${rm_retval}" STREQUAL 0) MESSAGE(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"") ENDIF(NOT "${rm_retval}" STREQUAL 0) ELSE(EXISTS "$ENV{DESTDIR}${file}") MESSAGE(STATUS "File \"$ENV{DESTDIR}${file}\" does not exist.") ENDIF(EXISTS "$ENV{DESTDIR}${file}") ENDFOREACH(file) inspectrum-0.2.3/cursor.cpp000066400000000000000000000052371375676064500157600ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include "cursor.h" Cursor::Cursor(Qt::Orientation orientation, Qt::CursorShape mouseCursorShape, QObject * parent) : QObject::QObject(parent), orientation(orientation), cursorShape(mouseCursorShape) { } int Cursor::fromPoint(QPoint point) { return (orientation == Qt::Vertical) ? point.x() : point.y(); } bool Cursor::pointOverCursor(QPoint point) { const int margin = 5; range_t range = {cursorPosition - margin, cursorPosition + margin}; return range.contains(fromPoint(point)); } bool Cursor::mouseEvent(QEvent::Type type, QMouseEvent event) { // If the mouse pointer moves over a cursor, display a resize pointer if (pointOverCursor(event.pos()) && type != QEvent::Leave) { if (!cursorOverrided) { cursorOverrided = true; QApplication::setOverrideCursor(QCursor(cursorShape)); } // Restore pointer if it moves off the cursor, or leaves the widget } else if (cursorOverrided) { cursorOverrided = false; QApplication::restoreOverrideCursor(); } // Start dragging on left mouse button press, if over a cursor if (type == QEvent::MouseButtonPress) { if (event.button() == Qt::LeftButton) { if (pointOverCursor(event.pos())) { dragging = true; return true; } } // Update current cursor position if we're dragging } else if (type == QEvent::MouseMove) { if (dragging) { cursorPosition = fromPoint(event.pos()); emit posChanged(); } // Stop dragging on left mouse button release } else if (type == QEvent::MouseButtonRelease) { if (event.button() == Qt::LeftButton && dragging) { dragging = false; return true; } } return false; } int Cursor::pos() { return cursorPosition; } void Cursor::setPos(int newPos) { cursorPosition = newPos; } inspectrum-0.2.3/cursor.h000066400000000000000000000025431375676064500154220ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include #include "util.h" class Cursor : public QObject { Q_OBJECT public: Cursor(Qt::Orientation orientation, Qt::CursorShape mouseCursorShape, QObject * parent); int pos(); void setPos(int newPos); bool mouseEvent(QEvent::Type type, QMouseEvent event); signals: void posChanged(); private: int fromPoint(QPoint point); bool pointOverCursor(QPoint point); Qt::Orientation orientation; Qt::CursorShape cursorShape; bool dragging = false; bool cursorOverrided = false; int cursorPosition = 0; }; inspectrum-0.2.3/cursors.cpp000066400000000000000000000106351375676064500161410ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include #include "cursors.h" Cursors::Cursors(QObject * parent) : QObject::QObject(parent) { minCursor = new Cursor(Qt::Vertical, Qt::SizeHorCursor, this); maxCursor = new Cursor(Qt::Vertical, Qt::SizeHorCursor, this); connect(minCursor, &Cursor::posChanged, this, &Cursors::cursorMoved); connect(maxCursor, &Cursor::posChanged, this, &Cursors::cursorMoved); } void Cursors::cursorMoved() { // Swap cursors if one has been dragged past the other if (minCursor->pos() > maxCursor->pos()) { std::swap(minCursor, maxCursor); } emit cursorsMoved(); } bool Cursors::pointWithinDragRegion(QPoint point) { int margin = 10; range_t range = {minCursor->pos()+margin, maxCursor->pos()-margin}; return range.contains(point.x()); } bool Cursors::mouseEvent(QEvent::Type type, QMouseEvent event) { if (minCursor->mouseEvent(type, event)) return true; if (maxCursor->mouseEvent(type, event)) return true; // If the mouse pointer is between the cursors, display a resize pointer if (pointWithinDragRegion(event.pos()) && type != QEvent::Leave) { if (!cursorOverride) { cursorOverride = true; QApplication::setOverrideCursor(QCursor(Qt::SizeAllCursor)); } // Restore pointer otherwise } else { if (cursorOverride) { cursorOverride = false; QApplication::restoreOverrideCursor(); } } // Start dragging on left mouse button press, if between the cursors if (type == QEvent::MouseButtonPress) { if (event.button() == Qt::LeftButton) { if (pointWithinDragRegion(event.pos())) { dragging = true; dragPos = event.pos(); return true; } } // Update both cursor positons if we're dragging } else if (type == QEvent::MouseMove) { if (dragging) { int dx = event.pos().x() - dragPos.x(); minCursor->setPos(minCursor->pos() + dx); maxCursor->setPos(maxCursor->pos() + dx); dragPos = event.pos(); emit cursorsMoved(); } // Stop dragging on left mouse button release } else if (type == QEvent::MouseButtonRelease) { if (event.button() == Qt::LeftButton && dragging) { dragging = false; return true; } } return false; } void Cursors::paintFront(QPainter &painter, QRect &rect, range_t sampleRange) { painter.save(); QRect cursorRect(minCursor->pos(), rect.top(), maxCursor->pos() - minCursor->pos(), rect.height()); // Draw translucent white fill for highlight painter.fillRect( cursorRect, QBrush(QColor(255, 255, 255, 50)) ); // Draw vertical edges for individual segments painter.setPen(QPen(Qt::gray, 1, Qt::DashLine)); for (int i = 1; i < segmentCount; i++) { int pos = minCursor->pos() + (i * cursorRect.width() / segmentCount); painter.drawLine(pos, rect.top(), pos, rect.bottom()); } // Draw vertical edges painter.setPen(QPen(Qt::white, 1, Qt::SolidLine)); painter.drawLine(minCursor->pos(), rect.top(), minCursor->pos(), rect.bottom()); painter.drawLine(maxCursor->pos(), rect.top(), maxCursor->pos(), rect.bottom()); painter.restore(); } int Cursors::segments() { return segmentCount; } range_t Cursors::selection() { return {minCursor->pos(), maxCursor->pos()}; } void Cursors::setSegments(int segments) { segmentCount = std::max(segments, 1); } void Cursors::setSelection(range_t selection) { minCursor->setPos(selection.minimum); maxCursor->setPos(selection.maximum); } inspectrum-0.2.3/cursors.h000066400000000000000000000032221375676064500156000ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include #include #include "cursor.h" #include "util.h" class Cursors : public QObject { Q_OBJECT public: Cursors(QObject * parent); int segments(); bool mouseEvent(QEvent::Type type, QMouseEvent event); void paintFront(QPainter &painter, QRect &rect, range_t sampleRange); range_t selection(); void setSegments(int segments); void setSelection(range_t selection); public slots: void cursorMoved(); signals: void cursorsMoved(); private: bool pointWithinDragRegion(QPoint point); Cursor *minCursor; Cursor *maxCursor; int segmentCount = 1; QPoint dragPos; // keep track of dragging distance bool cursorOverride = false; // used to record if cursor is overridden bool dragging = false; // record if mouse is dragging }; inspectrum-0.2.3/fft.cpp000066400000000000000000000026161375676064500152200ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "fft.h" #include "string.h" FFT::FFT(int size) { fftSize = size; fftwIn = (fftwf_complex*)fftwf_malloc(sizeof(fftwf_complex) * fftSize); fftwOut = (fftwf_complex*)fftwf_malloc(sizeof(fftwf_complex) * fftSize); fftwPlan = fftwf_plan_dft_1d(fftSize, fftwIn, fftwOut, FFTW_FORWARD, FFTW_MEASURE); } FFT::~FFT() { if (fftwPlan) fftwf_destroy_plan(fftwPlan); if (fftwIn) fftwf_free(fftwIn); if (fftwOut) fftwf_free(fftwOut); } void FFT::process(void *dest, void *source) { memcpy(fftwIn, source, fftSize * sizeof(fftwf_complex)); fftwf_execute(fftwPlan); memcpy(dest, fftwOut, fftSize * sizeof(fftwf_complex)); } inspectrum-0.2.3/fft.h000066400000000000000000000020701375676064500146570ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include class FFT { public: FFT(int size); ~FFT(); void process(void *dest, void *source); int getSize() { return fftSize; } private: int fftSize; fftwf_complex *fftwIn = nullptr; fftwf_complex *fftwOut = nullptr; fftwf_plan fftwPlan = nullptr; }; inspectrum-0.2.3/frequencydemod.cpp000066400000000000000000000024441375676064500174520ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "frequencydemod.h" #include #include "util.h" FrequencyDemod::FrequencyDemod(std::shared_ptr>> src) : SampleBuffer(src) { } void FrequencyDemod::work(void *input, void *output, int count, size_t sampleid) { auto in = static_cast*>(input); auto out = static_cast(output); freqdem fdem = freqdem_create(relativeBandwidth() / 2.0); for (int i = 0; i < count; i++) { freqdem_demodulate(fdem, in[i], &out[i]); } freqdem_destroy(fdem); } inspectrum-0.2.3/frequencydemod.h000066400000000000000000000020211375676064500171060ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include "samplebuffer.h" class FrequencyDemod : public SampleBuffer, float> { public: FrequencyDemod(std::shared_ptr>> src); void work(void *input, void *output, int count, size_t sampleid) override; }; inspectrum-0.2.3/inputsource.cpp000066400000000000000000000203061375676064500170150ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * Copyright (C) 2015, Jared Boone * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "inputsource.h" #include #include #include #include #include #include class ComplexF32SampleAdapter : public SampleAdapter { public: size_t sampleSize() override { return sizeof(std::complex); } void copyRange(const void* const src, size_t start, size_t length, std::complex* const dest) override { auto s = reinterpret_cast*>(src); std::copy(&s[start], &s[start + length], dest); } }; class ComplexS16SampleAdapter : public SampleAdapter { public: size_t sampleSize() override { return sizeof(std::complex); } void copyRange(const void* const src, size_t start, size_t length, std::complex* const dest) override { auto s = reinterpret_cast*>(src); std::transform(&s[start], &s[start + length], dest, [](const std::complex& v) -> std::complex { const float k = 1.0f / 32768.0f; return { v.real() * k, v.imag() * k }; } ); } }; class ComplexS8SampleAdapter : public SampleAdapter { public: size_t sampleSize() override { return sizeof(std::complex); } void copyRange(const void* const src, size_t start, size_t length, std::complex* const dest) override { auto s = reinterpret_cast*>(src); std::transform(&s[start], &s[start + length], dest, [](const std::complex& v) -> std::complex { const float k = 1.0f / 128.0f; return { v.real() * k, v.imag() * k }; } ); } }; class ComplexU8SampleAdapter : public SampleAdapter { public: size_t sampleSize() override { return sizeof(std::complex); } void copyRange(const void* const src, size_t start, size_t length, std::complex* const dest) override { auto s = reinterpret_cast*>(src); std::transform(&s[start], &s[start + length], dest, [](const std::complex& v) -> std::complex { const float k = 1.0f / 128.0f; return { (v.real() - 127.4f) * k, (v.imag() - 127.4f) * k }; } ); } }; class RealF32SampleAdapter : public SampleAdapter { public: size_t sampleSize() override { return sizeof(float); } void copyRange(const void* const src, size_t start, size_t length, std::complex* const dest) override { auto s = reinterpret_cast(src); std::transform(&s[start], &s[start + length], dest, [](const float& v) -> std::complex { return {v, 0.0f}; } ); } }; class RealS16SampleAdapter : public SampleAdapter { public: size_t sampleSize() override { return sizeof(int16_t); } void copyRange(const void* const src, size_t start, size_t length, std::complex* const dest) override { auto s = reinterpret_cast(src); std::transform(&s[start], &s[start + length], dest, [](const int16_t& v) -> std::complex { const float k = 1.0f / 32768.0f; return { v * k, 0.0f }; } ); } }; class RealS8SampleAdapter : public SampleAdapter { public: size_t sampleSize() override { return sizeof(int8_t); } void copyRange(const void* const src, size_t start, size_t length, std::complex* const dest) override { auto s = reinterpret_cast(src); std::transform(&s[start], &s[start + length], dest, [](const int8_t& v) -> std::complex { const float k = 1.0f / 128.0f; return { v * k, 0.0f }; } ); } }; class RealU8SampleAdapter : public SampleAdapter { public: size_t sampleSize() override { return sizeof(uint8_t); } void copyRange(const void* const src, size_t start, size_t length, std::complex* const dest) override { auto s = reinterpret_cast(src); std::transform(&s[start], &s[start + length], dest, [](const uint8_t& v) -> std::complex { const float k = 1.0f / 128.0f; return { (v - 127.4f) * k, 0 }; } ); } }; InputSource::InputSource() { } InputSource::~InputSource() { cleanup(); } void InputSource::cleanup() { if (mmapData != nullptr) { inputFile->unmap(mmapData); mmapData = nullptr; } if (inputFile != nullptr) { delete inputFile; inputFile = nullptr; } } void InputSource::openFile(const char *filename) { QFileInfo fileInfo(filename); std::string suffix = std::string(fileInfo.suffix().toLower().toUtf8().constData()); if(_fmt!=""){ suffix = _fmt; } // allow fmt override if ((suffix == "cfile") || (suffix == "cf32") || (suffix == "fc32")) { sampleAdapter = std::unique_ptr(new ComplexF32SampleAdapter()); } else if ((suffix == "cs16") || (suffix == "sc16") || (suffix == "c16")) { sampleAdapter = std::unique_ptr(new ComplexS16SampleAdapter()); } else if ((suffix == "cs8") || (suffix == "sc8") || (suffix == "c8")) { sampleAdapter = std::unique_ptr(new ComplexS8SampleAdapter()); } else if ((suffix == "cu8") || (suffix == "uc8")) { sampleAdapter = std::unique_ptr(new ComplexU8SampleAdapter()); } else if (suffix == "f32") { sampleAdapter = std::unique_ptr(new RealF32SampleAdapter()); _realSignal = true; } else if (suffix == "s16") { sampleAdapter = std::unique_ptr(new RealS16SampleAdapter()); _realSignal = true; } else if (suffix == "s8") { sampleAdapter = std::unique_ptr(new RealS8SampleAdapter()); _realSignal = true; } else if (suffix == "u8") { sampleAdapter = std::unique_ptr(new RealU8SampleAdapter()); _realSignal = true; } else { sampleAdapter = std::unique_ptr(new ComplexF32SampleAdapter()); } std::unique_ptr file(new QFile(filename)); if (!file->open(QFile::ReadOnly)) { throw std::runtime_error(file->errorString().toStdString()); } auto size = file->size(); sampleCount = size / sampleAdapter->sampleSize(); auto data = file->map(0, size); if (data == nullptr) throw std::runtime_error("Error mmapping file"); cleanup(); inputFile = file.release(); mmapData = data; invalidate(); } void InputSource::setSampleRate(double rate) { sampleRate = rate; invalidate(); } double InputSource::rate() { return sampleRate; } std::unique_ptr[]> InputSource::getSamples(size_t start, size_t length) { if (inputFile == nullptr) return nullptr; if (mmapData == nullptr) return nullptr; if(start < 0 || length < 0) return nullptr; if (start + length > sampleCount) return nullptr; std::unique_ptr[]> dest(new std::complex[length]); sampleAdapter->copyRange(mmapData, start, length, dest.get()); return dest; } void InputSource::setFormat(std::string fmt){ _fmt = fmt; } inspectrum-0.2.3/inputsource.h000066400000000000000000000034611375676064500164650ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * Copyright (C) 2015, Jared Boone * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include "samplesource.h" class SampleAdapter { public: virtual size_t sampleSize() = 0; virtual void copyRange(const void* const src, size_t start, size_t length, std::complex* const dest) = 0; }; class InputSource : public SampleSource> { private: QFile *inputFile = nullptr; size_t sampleCount = 0; double sampleRate = 0.0; uchar *mmapData = nullptr; std::unique_ptr sampleAdapter; std::string _fmt; bool _realSignal = false; public: InputSource(); ~InputSource(); void cleanup(); void openFile(const char *filename); std::unique_ptr[]> getSamples(size_t start, size_t length); size_t count() { return sampleCount; }; void setSampleRate(double rate); void setFormat(std::string fmt); double rate(); bool realSignal() { return _realSignal; }; float relativeBandwidth() { return 1; } }; inspectrum-0.2.3/main.cpp000066400000000000000000000045741375676064500153720ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include #include "mainwindow.h" int main(int argc, char *argv[]) { QApplication a(argc, argv); a.setApplicationName("inspectrum"); a.setOrganizationName("inspectrum"); MainWindow mainWin; QCommandLineParser parser; parser.setApplicationDescription("spectrum viewer"); parser.addHelpOption(); parser.addPositionalArgument("file", QCoreApplication::translate("main", "File to view.")); // Add options QCommandLineOption rateOption(QStringList() << "r" << "rate", QCoreApplication::translate("main", "Set sample rate."), QCoreApplication::translate("main", "Hz")); parser.addOption(rateOption); QCommandLineOption formatOption(QStringList() << "f" << "format", QCoreApplication::translate("main", "Set file format."), QCoreApplication::translate("main", "fmt")); parser.addOption(formatOption); // Process the actual command line parser.process(a); // Check for file format override if(parser.isSet(formatOption)){ mainWin.setFormat(parser.value(formatOption)); } const QStringList args = parser.positionalArguments(); if (args.size()>=1) mainWin.openFile(args.at(0)); if (parser.isSet(rateOption)) { bool ok; auto rate = parser.value(rateOption).toDouble(&ok); if(!ok) { fputs("ERROR: could not parse rate\n", stderr); return 1; } mainWin.setSampleRate(rate); } mainWin.show(); return a.exec(); } inspectrum-0.2.3/mainwindow.cpp000066400000000000000000000102511375676064500166070ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include #include #include #include #include "mainwindow.h" #include "util.h" MainWindow::MainWindow() { setWindowTitle(tr("inspectrum")); QPixmapCache::setCacheLimit(40960); dock = new SpectrogramControls(tr("Controls"), this); dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea); addDockWidget(Qt::LeftDockWidgetArea, dock); input = new InputSource(); plots = new PlotView(input); setCentralWidget(plots); // Connect dock inputs connect(dock, &SpectrogramControls::openFile, this, &MainWindow::openFile); connect(dock->sampleRate, static_cast(&QLineEdit::textChanged), this, static_cast(&MainWindow::setSampleRate)); connect(dock, static_cast(&SpectrogramControls::fftOrZoomChanged), plots, &PlotView::setFFTAndZoom); connect(dock->powerMaxSlider, &QSlider::valueChanged, plots, &PlotView::setPowerMax); connect(dock->powerMinSlider, &QSlider::valueChanged, plots, &PlotView::setPowerMin); connect(dock->cursorsCheckBox, &QCheckBox::stateChanged, plots, &PlotView::enableCursors); connect(dock->scalesCheckBox, &QCheckBox::stateChanged, plots, &PlotView::enableScales); connect(dock->cursorSymbolsSpinBox, static_cast(&QSpinBox::valueChanged), plots, &PlotView::setCursorSegments); // Connect dock outputs connect(plots, &PlotView::timeSelectionChanged, dock, &SpectrogramControls::timeSelectionChanged); connect(plots, &PlotView::zoomIn, dock, &SpectrogramControls::zoomIn); connect(plots, &PlotView::zoomOut, dock, &SpectrogramControls::zoomOut); // Set defaults after making connections so everything is in sync dock->setDefaults(); } void MainWindow::openFile(QString fileName) { QString title="%1: %2"; this->setWindowTitle(title.arg(QApplication::applicationName(),fileName.section('/',-1,-1))); // Try to parse osmocom_fft filenames and extract the sample rate and center frequency. // Example file name: "name-f2.411200e+09-s5.000000e+06-t20160807180210.cfile" QRegExp rx("(.*)-f(.*)-s(.*)-.*\\.cfile"); QString basename = fileName.section('/',-1,-1); if (rx.exactMatch(basename)) { QString centerfreq = rx.cap(2); QString samplerate = rx.cap(3); std::stringstream ss(samplerate.toUtf8().constData()); // Needs to be a double as the number is in scientific format double rate; ss >> rate; if (!ss.fail()) { setSampleRate(rate); } } try { input->openFile(fileName.toUtf8().constData()); } catch (const std::exception &ex) { QMessageBox msgBox(QMessageBox::Critical, "Inspectrum openFile error", QString("%1: %2").arg(fileName).arg(ex.what())); msgBox.exec(); } } void MainWindow::setSampleRate(QString rate) { auto sampleRate = rate.toDouble(); input->setSampleRate(sampleRate); plots->setSampleRate(sampleRate); // Save the sample rate in settings as we're likely to be opening the same file across multiple runs QSettings settings; settings.setValue("SampleRate", sampleRate); } void MainWindow::setSampleRate(double rate) { dock->sampleRate->setText(QString::number(rate)); } void MainWindow::setFormat(QString fmt) { input->setFormat(fmt.toUtf8().constData()); } inspectrum-0.2.3/mainwindow.h000066400000000000000000000023361375676064500162610ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include "spectrogramcontrols.h" #include "plotview.h" class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(); void changeSampleRate(double rate); public slots: void openFile(QString fileName); void setSampleRate(QString rate); void setSampleRate(double rate); void setFormat(QString fmt); private: SpectrogramControls *dock; PlotView *plots; InputSource *input; }; inspectrum-0.2.3/phasedemod.cpp000066400000000000000000000022131375676064500165430ustar00rootroot00000000000000/* * Copyright (C) 2017, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "phasedemod.h" PhaseDemod::PhaseDemod(std::shared_ptr>> src) : SampleBuffer(src) { } void PhaseDemod::work(void *input, void *output, int count, size_t sampleid) { auto in = static_cast*>(input); auto out = static_cast(output); for (int i = 0; i < count; i++) { out[i] = std::arg(in[i]) * (1 / M_PI); } } inspectrum-0.2.3/phasedemod.h000066400000000000000000000020111375676064500162040ustar00rootroot00000000000000/* * Copyright (C) 2017, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include "samplebuffer.h" class PhaseDemod : public SampleBuffer, float> { public: PhaseDemod(std::shared_ptr>> src); void work(void *input, void *output, int count, size_t sampleid) override; }; inspectrum-0.2.3/plot.cpp000066400000000000000000000030761375676064500154200ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "plot.h" Plot::Plot(std::shared_ptr src) : sampleSource(src) { sampleSource->subscribe(this); } Plot::~Plot() { sampleSource->unsubscribe(this); } void Plot::invalidateEvent() { } bool Plot::mouseEvent(QEvent::Type type, QMouseEvent event) { return false; } std::shared_ptr Plot::output() { return sampleSource; } void Plot::paintBack(QPainter &painter, QRect &rect, range_t sampleRange) { painter.save(); QPen pen(Qt::white, 1, Qt::DashLine); painter.setPen(pen); painter.drawLine(rect.left(), rect.center().y(), rect.right(), rect.center().y()); painter.restore(); } void Plot::paintMid(QPainter &painter, QRect &rect, range_t sampleRange) { } void Plot::paintFront(QPainter &painter, QRect &rect, range_t sampleRange) { } inspectrum-0.2.3/plot.h000066400000000000000000000032741375676064500150650ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include #include "abstractsamplesource.h" #include "util.h" class Plot : public QObject, public Subscriber { Q_OBJECT public: Plot(std::shared_ptr src); ~Plot(); void invalidateEvent() override; virtual bool mouseEvent(QEvent::Type type, QMouseEvent event); virtual std::shared_ptr output(); virtual void paintBack(QPainter &painter, QRect &rect, range_t sampleRange); virtual void paintMid(QPainter &painter, QRect &rect, range_t sampleRange); virtual void paintFront(QPainter &painter, QRect &rect, range_t sampleRange); int height() const { return _height; }; signals: void repaint(); protected: void setHeight(int height) { _height = height; }; std::shared_ptr sampleSource; private: // TODO: don't hardcode this int _height = 200; }; inspectrum-0.2.3/plots.cpp000066400000000000000000000042651375676064500156040ustar00rootroot00000000000000/* * Copyright (C) 2016-2017, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "amplitudedemod.h" #include "frequencydemod.h" #include "phasedemod.h" #include "threshold.h" #include "traceplot.h" #include "plots.h" std::multimap Plots::plots; Plots::_init Plots::_initializer; Plot* Plots::samplePlot(std::shared_ptr source) { return new TracePlot(source); } Plot* Plots::amplitudePlot(std::shared_ptr source) { typedef SampleSource> Source; std::shared_ptr concrete = std::dynamic_pointer_cast(source); return new TracePlot( std::make_shared(concrete) ); } Plot* Plots::frequencyPlot(std::shared_ptr source) { typedef SampleSource> Source; std::shared_ptr concrete = std::dynamic_pointer_cast(source); return new TracePlot( std::make_shared( concrete ) ); } Plot* Plots::phasePlot(std::shared_ptr source) { typedef SampleSource> Source; std::shared_ptr concrete = std::dynamic_pointer_cast(source); return new TracePlot(std::make_shared(concrete)); } Plot* Plots::thresholdPlot(std::shared_ptr source) { typedef SampleSource Source; std::shared_ptr concrete= std::dynamic_pointer_cast(source); return new TracePlot( std::make_shared( concrete ) ); } inspectrum-0.2.3/plots.h000066400000000000000000000037231375676064500152470ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include "plot.h" #include "samplesource.h" struct PlotInfo { const char *name; std::function)> creator; }; class Plots { public: static std::multimap plots; static Plot* samplePlot(std::shared_ptr source); static Plot* amplitudePlot(std::shared_ptr source); static Plot* frequencyPlot(std::shared_ptr source); static Plot* phasePlot(std::shared_ptr source); static Plot* thresholdPlot(std::shared_ptr source); static class _init { public: _init() { plots.emplace(typeid(std::complex), PlotInfo{"sample plot", samplePlot}); plots.emplace(typeid(std::complex), PlotInfo{"amplitude plot", amplitudePlot}); plots.emplace(typeid(std::complex), PlotInfo{"frequency plot", frequencyPlot}); plots.emplace(typeid(std::complex), PlotInfo{"phase plot", phasePlot}); plots.emplace(typeid(float), PlotInfo{"threshold plot", thresholdPlot}); }; } _initializer; };inspectrum-0.2.3/plotview.cpp000066400000000000000000000435121375676064500163120ustar00rootroot00000000000000/* * Copyright (C) 2015-2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "plotview.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "plots.h" PlotView::PlotView(InputSource *input) : cursors(this), viewRange({0, 0}) { mainSampleSource = input; setDragMode(QGraphicsView::ScrollHandDrag); setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn); setMouseTracking(true); enableCursors(false); connect(&cursors, &Cursors::cursorsMoved, this, &PlotView::cursorsMoved); spectrogramPlot = new SpectrogramPlot(std::shared_ptr>>(mainSampleSource)); auto tunerOutput = std::dynamic_pointer_cast>>(spectrogramPlot->output()); enableScales(true); addPlot(spectrogramPlot); mainSampleSource->subscribe(this); } void PlotView::addPlot(Plot *plot) { plots.emplace_back(plot); connect(plot, &Plot::repaint, this, &PlotView::repaint); } void PlotView::contextMenuEvent(QContextMenuEvent * event) { QMenu menu; // Get selected plot Plot *selectedPlot = nullptr; auto it = plots.begin(); int y = -verticalScrollBar()->value(); for (; it != plots.end(); it++) { auto&& plot = *it; if (range_t{y, y + plot->height()}.contains(event->pos().y())) { selectedPlot = plot.get(); break; } y += plot->height(); } if (selectedPlot == nullptr) return; // Add actions to add derived plots // that are compatible with selectedPlot's output QMenu *plotsMenu = menu.addMenu("Add derived plot"); auto src = selectedPlot->output(); auto compatiblePlots = as_range(Plots::plots.equal_range(src->sampleType())); for (auto p : compatiblePlots) { auto plotInfo = p.second; auto action = new QAction(QString("Add %1").arg(plotInfo.name), plotsMenu); auto plotCreator = plotInfo.creator; connect( action, &QAction::triggered, this, [=]() { addPlot(plotCreator(src)); } ); plotsMenu->addAction(action); } // Add submenu for extracting symbols QMenu *extractMenu = menu.addMenu("Extract symbols"); // Add action to extract symbols from selected plot to stdout auto extract = new QAction("To stdout", extractMenu); connect( extract, &QAction::triggered, this, [=]() { extractSymbols(src, false); } ); extract->setEnabled(cursorsEnabled && (src->sampleType() == typeid(float))); extractMenu->addAction(extract); // Add action to extract symbols from selected plot to clipboard auto extractClipboard = new QAction("Copy to clipboard", extractMenu); connect( extractClipboard, &QAction::triggered, this, [=]() { extractSymbols(src, true); } ); extractClipboard->setEnabled(cursorsEnabled && (src->sampleType() == typeid(float))); extractMenu->addAction(extractClipboard); // Add action to export the selected samples into a file auto save = new QAction("Export samples to file...", &menu); connect( save, &QAction::triggered, this, [=]() { if (selectedPlot == spectrogramPlot) { exportSamples(spectrogramPlot->tunerEnabled() ? spectrogramPlot->output() : spectrogramPlot->input()); } else { exportSamples(src); } } ); menu.addAction(save); // Add action to remove the selected plot auto rem = new QAction("Remove plot", &menu); connect( rem, &QAction::triggered, this, [=]() { plots.erase(it); } ); // Don't allow remove the first plot (the spectrogram) rem->setEnabled(it != plots.begin()); menu.addAction(rem); updateViewRange(false); if(menu.exec(event->globalPos())) updateView(false); } void PlotView::cursorsMoved() { selectedSamples = { columnToSample(horizontalScrollBar()->value() + cursors.selection().minimum), columnToSample(horizontalScrollBar()->value() + cursors.selection().maximum) }; emitTimeSelection(); viewport()->update(); } void PlotView::emitTimeSelection() { size_t sampleCount = selectedSamples.length(); float selectionTime = sampleCount / (float)mainSampleSource->rate(); emit timeSelectionChanged(selectionTime); } void PlotView::enableCursors(bool enabled) { cursorsEnabled = enabled; if (enabled) { int margin = viewport()->rect().width() / 3; cursors.setSelection({viewport()->rect().left() + margin, viewport()->rect().right() - margin}); cursorsMoved(); } viewport()->update(); } bool PlotView::viewportEvent(QEvent *event) { // Handle wheel events for zooming (before the parent's handler to stop normal scrolling) if (event->type() == QEvent::Wheel) { QWheelEvent *wheelEvent = (QWheelEvent*)event; if (QApplication::keyboardModifiers() & Qt::ControlModifier) { bool canZoomIn = zoomLevel < fftSize; bool canZoomOut = zoomLevel > 1; int delta = wheelEvent->angleDelta().y(); if ((delta > 0 && canZoomIn) || (delta < 0 && canZoomOut)) { scrollZoomStepsAccumulated += delta; // `updateViewRange()` keeps the center sample in the same place after zoom. Apply // a scroll adjustment to keep the sample under the mouse cursor in the same place instead. zoomPos = wheelEvent->pos().x(); zoomSample = columnToSample(horizontalScrollBar()->value() + zoomPos); if (scrollZoomStepsAccumulated >= 120) { scrollZoomStepsAccumulated -= 120; emit zoomIn(); } else if (scrollZoomStepsAccumulated <= -120) { scrollZoomStepsAccumulated += 120; emit zoomOut(); } } return true; } } // Pass mouse events to individual plot objects if (event->type() == QEvent::MouseButtonPress || event->type() == QEvent::MouseMove || event->type() == QEvent::MouseButtonRelease || event->type() == QEvent::Leave) { QMouseEvent *mouseEvent = static_cast(event); int plotY = -verticalScrollBar()->value(); for (auto&& plot : plots) { bool result = plot->mouseEvent( event->type(), QMouseEvent( event->type(), QPoint(mouseEvent->pos().x(), mouseEvent->pos().y() - plotY), mouseEvent->button(), mouseEvent->buttons(), QApplication::keyboardModifiers() ) ); if (result) return true; plotY += plot->height(); } if (cursorsEnabled) if (cursors.mouseEvent(event->type(), *mouseEvent)) return true; } // Handle parent eveents return QGraphicsView::viewportEvent(event); } void PlotView::extractSymbols(std::shared_ptr src, bool toClipboard) { if (!cursorsEnabled) return; auto floatSrc = std::dynamic_pointer_cast>(src); if (!floatSrc) return; auto samples = floatSrc->getSamples(selectedSamples.minimum, selectedSamples.length()); auto step = (float)selectedSamples.length() / cursors.segments(); auto symbols = std::vector(); for (auto i = step / 2; i < selectedSamples.length(); i += step) { symbols.push_back(samples[i]); } if (!toClipboard) { for (auto f : symbols) std::cout << f << ", "; std::cout << std::endl << std::flush; } else { QClipboard *clipboard = QGuiApplication::clipboard(); QString symbolText; QTextStream symbolStream(&symbolText); for (auto f : symbols) symbolStream << f << ", "; clipboard->setText(symbolText); } } void PlotView::exportSamples(std::shared_ptr src) { if (src->sampleType() == typeid(std::complex)) { exportSamples>(src); } else { exportSamples(src); } } template void PlotView::exportSamples(std::shared_ptr src) { auto sampleSrc = std::dynamic_pointer_cast>(src); if (!sampleSrc) { return; } QFileDialog dialog(this); dialog.setAcceptMode(QFileDialog::AcceptSave); dialog.setFileMode(QFileDialog::AnyFile); dialog.setNameFilter(getFileNameFilter()); dialog.setOption(QFileDialog::DontUseNativeDialog, true); QGroupBox groupBox("Selection To Export", &dialog); QVBoxLayout vbox(&groupBox); QRadioButton cursorSelection("Cursor Selection", &groupBox); QRadioButton currentView("Current View", &groupBox); QRadioButton completeFile("Complete File (Experimental)", &groupBox); if (cursorsEnabled) { cursorSelection.setChecked(true); } else { currentView.setChecked(true); cursorSelection.setEnabled(false); } vbox.addWidget(&cursorSelection); vbox.addWidget(¤tView); vbox.addWidget(&completeFile); vbox.addStretch(1); groupBox.setLayout(&vbox); QGridLayout *l = dialog.findChild(); l->addWidget(&groupBox, 4, 1); QGroupBox groupBox2("Decimation"); QSpinBox decimation(&groupBox2); decimation.setMinimum(1); decimation.setValue(1 / sampleSrc->relativeBandwidth()); QVBoxLayout vbox2; vbox2.addWidget(&decimation); groupBox2.setLayout(&vbox2); l->addWidget(&groupBox2, 4, 2); if (dialog.exec()) { QStringList fileNames = dialog.selectedFiles(); size_t start, end; if (cursorSelection.isChecked()) { start = selectedSamples.minimum; end = start + selectedSamples.length(); } else if(currentView.isChecked()) { start = viewRange.minimum; end = start + viewRange.length(); } else { start = 0; end = sampleSrc->count(); } std::ofstream os (fileNames[0].toStdString(), std::ios::binary); size_t index; // viewRange.length() is used as some less arbitrary step value size_t step = viewRange.length(); for (index = start; index < end; index += step) { size_t length = std::min(step, end - index); auto samples = sampleSrc->getSamples(index, length); if (samples != nullptr) { for (auto i = 0; i < length; i += decimation.value()) { os.write((const char*)&samples[i], sizeof(SOURCETYPE)); } } } } } void PlotView::invalidateEvent() { horizontalScrollBar()->setMinimum(0); horizontalScrollBar()->setMaximum(sampleToColumn(mainSampleSource->count())); } void PlotView::repaint() { viewport()->update(); } void PlotView::setCursorSegments(int segments) { // Calculate number of samples per segment float sampPerSeg = (float)selectedSamples.length() / cursors.segments(); // Alter selection to keep samples per segment the same selectedSamples.maximum = selectedSamples.minimum + (segments * sampPerSeg + 0.5f); cursors.setSegments(segments); updateView(); emitTimeSelection(); } void PlotView::setFFTAndZoom(int size, int zoom) { auto oldSamplesPerColumn = samplesPerColumn(); // Set new FFT size fftSize = size; if (spectrogramPlot != nullptr) spectrogramPlot->setFFTSize(size); // Set new zoom level zoomLevel = zoom; if (spectrogramPlot != nullptr) spectrogramPlot->setZoomLevel(zoom); // Update horizontal (time) scrollbar horizontalScrollBar()->setSingleStep(10); horizontalScrollBar()->setPageStep(100); updateView(true, samplesPerColumn() < oldSamplesPerColumn); } void PlotView::setPowerMin(int power) { powerMin = power; if (spectrogramPlot != nullptr) spectrogramPlot->setPowerMin(power); updateView(); } void PlotView::setPowerMax(int power) { powerMax = power; if (spectrogramPlot != nullptr) spectrogramPlot->setPowerMax(power); updateView(); } void PlotView::paintEvent(QPaintEvent *event) { if (mainSampleSource == nullptr) return; QRect rect = QRect(0, 0, width(), height()); QPainter painter(viewport()); painter.fillRect(rect, Qt::black); #define PLOT_LAYER(paintFunc) \ { \ int y = -verticalScrollBar()->value(); \ for (auto&& plot : plots) { \ QRect rect = QRect(0, y, width(), plot->height()); \ plot->paintFunc(painter, rect, viewRange); \ y += plot->height(); \ } \ } PLOT_LAYER(paintBack); PLOT_LAYER(paintMid); PLOT_LAYER(paintFront); if (cursorsEnabled) cursors.paintFront(painter, rect, viewRange); if (timeScaleEnabled) { paintTimeScale(painter, rect, viewRange); } #undef PLOT_LAYER } void PlotView::paintTimeScale(QPainter &painter, QRect &rect, range_t sampleRange) { float startTime = (float)sampleRange.minimum / sampleRate; float stopTime = (float)sampleRange.maximum / sampleRate; float duration = stopTime - startTime; if (duration <= 0) return; painter.save(); QPen pen(Qt::white, 1, Qt::SolidLine); painter.setPen(pen); QFontMetrics fm(painter.font()); int tickWidth = 80; int maxTicks = rect.width() / tickWidth; double durationPerTick = 10 * pow(10, floor(log(duration / maxTicks) / log(10))); double firstTick = int(startTime / durationPerTick) * durationPerTick; double tick = firstTick; while (tick <= stopTime) { size_t tickSample = tick * sampleRate; int tickLine = sampleToColumn(tickSample - sampleRange.minimum); char buf[128]; snprintf(buf, sizeof(buf), "%.06f", tick); painter.drawLine(tickLine, 0, tickLine, 30); painter.drawText(tickLine + 2, 25, buf); tick += durationPerTick; } // Draw small ticks durationPerTick /= 10; firstTick = int(startTime / durationPerTick) * durationPerTick; tick = firstTick; while (tick <= stopTime) { size_t tickSample = tick * sampleRate; int tickLine = sampleToColumn(tickSample - sampleRange.minimum); painter.drawLine(tickLine, 0, tickLine, 10); tick += durationPerTick; } painter.restore(); } int PlotView::plotsHeight() { int height = 0; for (auto&& plot : plots) { height += plot->height(); } return height; } void PlotView::resizeEvent(QResizeEvent * event) { updateView(); } size_t PlotView::samplesPerColumn() { return fftSize / zoomLevel; } void PlotView::scrollContentsBy(int dx, int dy) { updateView(); } void PlotView::showEvent(QShowEvent *event) { // Intentionally left blank. See #171 } void PlotView::updateViewRange(bool reCenter) { // Update current view auto start = columnToSample(horizontalScrollBar()->value()); viewRange = {start, std::min(start + columnToSample(width()), mainSampleSource->count())}; // Adjust time offset to zoom around central sample if (reCenter) { horizontalScrollBar()->setValue( sampleToColumn(zoomSample) - zoomPos ); } zoomSample = viewRange.minimum + viewRange.length() / 2; zoomPos = width() / 2; } void PlotView::updateView(bool reCenter, bool expanding) { if (!expanding) { updateViewRange(reCenter); } horizontalScrollBar()->setMaximum(std::max(0, sampleToColumn(mainSampleSource->count()) - width())); verticalScrollBar()->setMaximum(std::max(0, plotsHeight() - viewport()->height())); if (expanding) { updateViewRange(reCenter); } // Update cursors range_t newSelection = { sampleToColumn(selectedSamples.minimum) - horizontalScrollBar()->value(), sampleToColumn(selectedSamples.maximum) - horizontalScrollBar()->value() }; cursors.setSelection(newSelection); // Re-paint viewport()->update(); } void PlotView::setSampleRate(double rate) { sampleRate = rate; if (spectrogramPlot != nullptr) spectrogramPlot->setSampleRate(rate); emitTimeSelection(); } void PlotView::enableScales(bool enabled) { timeScaleEnabled = enabled; if (spectrogramPlot != nullptr) spectrogramPlot->enableScales(enabled); viewport()->update(); } int PlotView::sampleToColumn(size_t sample) { return sample / samplesPerColumn(); } size_t PlotView::columnToSample(int col) { return col * samplesPerColumn(); } inspectrum-0.2.3/plotview.h000066400000000000000000000057031375676064500157570ustar00rootroot00000000000000/* * Copyright (C) 2015-2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include "cursors.h" #include "inputsource.h" #include "plot.h" #include "samplesource.h" #include "spectrogramplot.h" #include "traceplot.h" class PlotView : public QGraphicsView, Subscriber { Q_OBJECT public: PlotView(InputSource *input); void setSampleRate(double rate); signals: void timeSelectionChanged(float time); void zoomIn(); void zoomOut(); public slots: void cursorsMoved(); void enableCursors(bool enabled); void enableScales(bool enabled); void invalidateEvent() override; void repaint(); void setCursorSegments(int segments); void setFFTAndZoom(int fftSize, int zoomLevel); void setPowerMin(int power); void setPowerMax(int power); protected: void contextMenuEvent(QContextMenuEvent * event) override; void paintEvent(QPaintEvent *event) override; void resizeEvent(QResizeEvent * event) override; void scrollContentsBy(int dx, int dy) override; bool viewportEvent(QEvent *event) override; void showEvent(QShowEvent *event) override; private: Cursors cursors; SampleSource> *mainSampleSource = nullptr; SpectrogramPlot *spectrogramPlot = nullptr; std::vector> plots; range_t viewRange; range_t selectedSamples; int zoomPos; size_t zoomSample; int fftSize = 1024; int zoomLevel = 1; int powerMin; int powerMax; bool cursorsEnabled; double sampleRate = 0.0; bool timeScaleEnabled; int scrollZoomStepsAccumulated = 0; void addPlot(Plot *plot); void emitTimeSelection(); void extractSymbols(std::shared_ptr src, bool toClipboard); void exportSamples(std::shared_ptr src); template void exportSamples(std::shared_ptr src); int plotsHeight(); size_t samplesPerColumn(); void updateViewRange(bool reCenter); void updateView(bool reCenter = false, bool expanding = false); void paintTimeScale(QPainter &painter, QRect &rect, range_t sampleRange); int sampleToColumn(size_t sample); size_t columnToSample(int col); }; inspectrum-0.2.3/samplebuffer.cpp000066400000000000000000000037741375676064500171220ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include #include "samplebuffer.h" template SampleBuffer::SampleBuffer(std::shared_ptr> src) : src(src) { src->subscribe(this); } template SampleBuffer::~SampleBuffer() { src->unsubscribe(this); } template std::unique_ptr SampleBuffer::getSamples(size_t start, size_t length) { // TODO: base this on the actual history required auto history = std::min(start, (size_t)256); auto samples = src->getSamples(start - history, length + history); if (samples == nullptr) return nullptr; std::unique_ptr temp(new Tout[history + length]); std::unique_ptr dest(new Tout[length]); QMutexLocker ml(&mutex); work(samples.get(), temp.get(), history + length, start); memcpy(dest.get(), temp.get() + history, length * sizeof(Tout)); return dest; } template void SampleBuffer::invalidateEvent() { SampleSource::invalidate(); } template class SampleBuffer, std::complex>; template class SampleBuffer, float>; template class SampleBuffer; inspectrum-0.2.3/samplebuffer.h000066400000000000000000000027511375676064500165610ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include #include "samplesource.h" template class SampleBuffer : public SampleSource, public Subscriber { private: std::shared_ptr> src; QMutex mutex; public: SampleBuffer(std::shared_ptr> src); ~SampleBuffer(); void invalidateEvent(); virtual std::unique_ptr getSamples(size_t start, size_t length); virtual void work(void *input, void *output, int count, size_t sampleid) = 0; virtual size_t count() { return src->count(); }; double rate() { return src->rate(); }; float relativeBandwidth() { return src->relativeBandwidth(); } }; inspectrum-0.2.3/samplesource.cpp000066400000000000000000000017101375676064500171350ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "samplesource.h" template std::type_index SampleSource::sampleType() { return typeid(T); } template class SampleSource>; template class SampleSource; inspectrum-0.2.3/samplesource.h000066400000000000000000000024001375676064500165770ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include "abstractsamplesource.h" template class SampleSource : public AbstractSampleSource { public: virtual ~SampleSource() {}; virtual std::unique_ptr getSamples(size_t start, size_t length) = 0; virtual void invalidateEvent() { }; virtual size_t count() = 0; virtual double rate() = 0; virtual float relativeBandwidth() = 0; std::type_index sampleType() override; virtual bool realSignal() { return false; }; }; inspectrum-0.2.3/screenshot.jpg000066400000000000000000002431161375676064500166160ustar00rootroot00000000000000ÿØÿàJFIFÿÛC    $.' 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See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "spectrogramcontrols.h" #include #include #include #include #include #include "util.h" SpectrogramControls::SpectrogramControls(const QString & title, QWidget * parent) : QDockWidget::QDockWidget(title, parent) { widget = new QWidget(this); layout = new QFormLayout(widget); fileOpenButton = new QPushButton("Open file...", widget); layout->addRow(fileOpenButton); sampleRate = new QLineEdit(); auto double_validator = new QDoubleValidator(this); double_validator->setBottom(0.0); sampleRate->setValidator(double_validator); layout->addRow(new QLabel(tr("Sample rate:")), sampleRate); // Spectrogram settings layout->addRow(new QLabel()); // TODO: find a better way to add an empty row? layout->addRow(new QLabel(tr("Spectrogram"))); fftSizeSlider = new QSlider(Qt::Horizontal, widget); fftSizeSlider->setRange(4, 13); fftSizeSlider->setPageStep(1); layout->addRow(new QLabel(tr("FFT size:")), fftSizeSlider); zoomLevelSlider = new QSlider(Qt::Horizontal, widget); zoomLevelSlider->setRange(0, 10); zoomLevelSlider->setPageStep(1); layout->addRow(new QLabel(tr("Zoom:")), zoomLevelSlider); powerMaxSlider = new QSlider(Qt::Horizontal, widget); powerMaxSlider->setRange(-140, 10); layout->addRow(new QLabel(tr("Power max:")), powerMaxSlider); powerMinSlider = new QSlider(Qt::Horizontal, widget); powerMinSlider->setRange(-140, 10); layout->addRow(new QLabel(tr("Power min:")), powerMinSlider); scalesCheckBox = new QCheckBox(widget); scalesCheckBox->setCheckState(Qt::Checked); layout->addRow(new QLabel(tr("Scales:")), scalesCheckBox); // Time selection settings layout->addRow(new QLabel()); // TODO: find a better way to add an empty row? layout->addRow(new QLabel(tr("Time selection"))); cursorsCheckBox = new QCheckBox(widget); layout->addRow(new QLabel(tr("Enable cursors:")), cursorsCheckBox); cursorSymbolsSpinBox = new QSpinBox(); cursorSymbolsSpinBox->setMinimum(1); cursorSymbolsSpinBox->setMaximum(9999); layout->addRow(new QLabel(tr("Symbols:")), cursorSymbolsSpinBox); rateLabel = new QLabel(); layout->addRow(new QLabel(tr("Rate:")), rateLabel); periodLabel = new QLabel(); layout->addRow(new QLabel(tr("Period:")), periodLabel); symbolRateLabel = new QLabel(); layout->addRow(new QLabel(tr("Symbol rate:")), symbolRateLabel); symbolPeriodLabel = new QLabel(); layout->addRow(new QLabel(tr("Symbol period:")), symbolPeriodLabel); widget->setLayout(layout); setWidget(widget); connect(fftSizeSlider, &QSlider::valueChanged, this, &SpectrogramControls::fftSizeChanged); connect(zoomLevelSlider, &QSlider::valueChanged, this, &SpectrogramControls::zoomLevelChanged); connect(fileOpenButton, &QPushButton::clicked, this, &SpectrogramControls::fileOpenButtonClicked); connect(cursorsCheckBox, &QCheckBox::stateChanged, this, &SpectrogramControls::cursorsStateChanged); connect(powerMinSlider, &QSlider::valueChanged, this, &SpectrogramControls::powerMinChanged); connect(powerMaxSlider, &QSlider::valueChanged, this, &SpectrogramControls::powerMaxChanged); } void SpectrogramControls::clearCursorLabels() { periodLabel->setText(""); rateLabel->setText(""); symbolPeriodLabel->setText(""); symbolRateLabel->setText(""); } void SpectrogramControls::cursorsStateChanged(int state) { if (state == Qt::Unchecked) { clearCursorLabels(); } } void SpectrogramControls::setDefaults() { fftOrZoomChanged(); cursorsCheckBox->setCheckState(Qt::Unchecked); cursorSymbolsSpinBox->setValue(1); // Try to set the sample rate from the last-used value QSettings settings; int savedSampleRate = settings.value("SampleRate", 8000000).toInt(); sampleRate->setText(QString::number(savedSampleRate)); fftSizeSlider->setValue(settings.value("FFTSize", 9).toInt()); powerMaxSlider->setValue(settings.value("PowerMax", 0).toInt()); powerMinSlider->setValue(settings.value("PowerMin", -100).toInt()); zoomLevelSlider->setValue(settings.value("ZoomLevel", 0).toInt()); } void SpectrogramControls::fftOrZoomChanged(void) { int fftSize = pow(2, fftSizeSlider->value()); int zoomLevel = std::min(fftSize, (int)pow(2, zoomLevelSlider->value())); emit fftOrZoomChanged(fftSize, zoomLevel); } void SpectrogramControls::fftSizeChanged(int value) { QSettings settings; settings.setValue("FFTSize", value); fftOrZoomChanged(); } void SpectrogramControls::zoomLevelChanged(int value) { QSettings settings; settings.setValue("ZoomLevel", value); fftOrZoomChanged(); } void SpectrogramControls::powerMinChanged(int value) { QSettings settings; settings.setValue("PowerMin", value); } void SpectrogramControls::powerMaxChanged(int value) { QSettings settings; settings.setValue("PowerMax", value); } void SpectrogramControls::fileOpenButtonClicked() { QSettings settings; QString fileName; QFileDialog fileSelect(this); fileSelect.setNameFilter(tr("All files (*);;" "complex file (*.cfile *.cf32 *.fc32);;" "complex HackRF file (*.cs8 *.sc8 *.c8);;" "complex Fancy file (*.cs16 *.sc16 *.c16);;" "complex RTL-SDR file (*.cu8 *.uc8)")); // Try and load a saved state { QByteArray savedState = settings.value("OpenFileState").toByteArray(); fileSelect.restoreState(savedState); // Filter doesn't seem to be considered part of the saved state QString lastUsedFilter = settings.value("OpenFileFilter").toString(); if(lastUsedFilter.size()) fileSelect.selectNameFilter(lastUsedFilter); } if(fileSelect.exec()) { fileName = fileSelect.selectedFiles()[0]; // Remember the state of the dialog for the next time QByteArray dialogState = fileSelect.saveState(); settings.setValue("OpenFileState", dialogState); settings.setValue("OpenFileFilter", fileSelect.selectedNameFilter()); } if (!fileName.isEmpty()) emit openFile(fileName); } void SpectrogramControls::timeSelectionChanged(float time) { if (cursorsCheckBox->checkState() == Qt::Checked) { periodLabel->setText(QString::fromStdString(formatSIValue(time)) + "s"); rateLabel->setText(QString::fromStdString(formatSIValue(1 / time)) + "Hz"); int symbols = cursorSymbolsSpinBox->value(); symbolPeriodLabel->setText(QString::fromStdString(formatSIValue(time / symbols)) + "s"); symbolRateLabel->setText(QString::fromStdString(formatSIValue(symbols / time)) + "Bd"); } } void SpectrogramControls::zoomIn() { zoomLevelSlider->setValue(zoomLevelSlider->value() + 1); } void SpectrogramControls::zoomOut() { zoomLevelSlider->setValue(zoomLevelSlider->value() - 1); } inspectrum-0.2.3/spectrogramcontrols.h000066400000000000000000000040111375676064500202070ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include #include #include #include #include #include class SpectrogramControls : public QDockWidget { Q_OBJECT public: SpectrogramControls(const QString & title, QWidget * parent); void setDefaults(); signals: void fftOrZoomChanged(int fftSize, int zoomLevel); void openFile(QString fileName); public slots: void timeSelectionChanged(float time); void zoomIn(); void zoomOut(); private slots: void fftSizeChanged(int value); void zoomLevelChanged(int value); void powerMinChanged(int value); void powerMaxChanged(int value); void fileOpenButtonClicked(); void cursorsStateChanged(int state); private: QWidget *widget; QFormLayout *layout; void clearCursorLabels(); void fftOrZoomChanged(void); public: QPushButton *fileOpenButton; QLineEdit *sampleRate; QSlider *fftSizeSlider; QSlider *zoomLevelSlider; QSlider *powerMaxSlider; QSlider *powerMinSlider; QCheckBox *cursorsCheckBox; QSpinBox *cursorSymbolsSpinBox; QLabel *rateLabel; QLabel *periodLabel; QLabel *symbolRateLabel; QLabel *symbolPeriodLabel; QCheckBox *scalesCheckBox; }; inspectrum-0.2.3/spectrogramplot.cpp000066400000000000000000000241301375676064500176610ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "spectrogramplot.h" #include #include #include #include #include #include #include #include #include #include "util.h" SpectrogramPlot::SpectrogramPlot(std::shared_ptr>> src) : Plot(src), inputSource(src), fftSize(512), tuner(fftSize, this) { setFFTSize(fftSize); zoomLevel = 1; powerMax = 0.0f; powerMin = -50.0f; sampleRate = 0; frequencyScaleEnabled = false; for (int i = 0; i < 256; i++) { float p = (float)i / 256; colormap[i] = QColor::fromHsvF(p * 0.83f, 1.0, 1.0 - p).rgba(); } tunerTransform = std::make_shared(src); connect(&tuner, &Tuner::tunerMoved, this, &SpectrogramPlot::tunerMoved); } void SpectrogramPlot::invalidateEvent() { // HACK: this makes sure we update the height for real signals (as InputSource is passed here before the file is opened) setFFTSize(fftSize); pixmapCache.clear(); fftCache.clear(); emit repaint(); } void SpectrogramPlot::paintFront(QPainter &painter, QRect &rect, range_t sampleRange) { if (tunerEnabled()) tuner.paintFront(painter, rect, sampleRange); if (frequencyScaleEnabled) paintFrequencyScale(painter, rect); } void SpectrogramPlot::paintFrequencyScale(QPainter &painter, QRect &rect) { // At which pixel is F_+sampleRate/2 int y = rect.y(); int plotHeight = rect.height(); if (inputSource->realSignal()) plotHeight *= 2; double bwPerPixel = (double)sampleRate / plotHeight; int tickHeight = 50; int bwPerTick = 10 * pow(10, floor(log(bwPerPixel * tickHeight) / log(10))); if (bwPerTick < 1) { return; } painter.save(); QPen pen(Qt::white, 1, Qt::SolidLine); painter.setPen(pen); QFontMetrics fm(painter.font()); int tick = 0; while (tick <= sampleRate / 2) { int tickpy = plotHeight / 2 - tick / bwPerPixel + y; int tickny = plotHeight / 2 + tick / bwPerPixel + y; if (!inputSource->realSignal()) painter.drawLine(0, tickny, 30, tickny); painter.drawLine(0, tickpy, 30, tickpy); if (tick != 0) { char buf[128]; if (bwPerTick % 1000000 == 0) { snprintf(buf, sizeof(buf), "-%d MHz", (int)tick / 1000000); } else if(bwPerTick % 1000 == 0) { snprintf(buf, sizeof(buf), "-%d kHz", tick / 1000); } else { snprintf(buf, sizeof(buf), "-%d Hz", tick); } if (!inputSource->realSignal()) painter.drawText(5, tickny - 5, buf); buf[0] = ' '; painter.drawText(5, tickpy + 15, buf); } tick += bwPerTick; } // Draw small ticks bwPerTick /= 10; if (bwPerTick >= 1 ) { tick = 0; while (tick <= sampleRate / 2) { int tickpy = plotHeight / 2 - tick / bwPerPixel + y; int tickny = plotHeight / 2 + tick / bwPerPixel + y; if (!inputSource->realSignal()) painter.drawLine(0, tickny, 3, tickny); painter.drawLine(0, tickpy, 3, tickpy); tick += bwPerTick; } } painter.restore(); } void SpectrogramPlot::paintMid(QPainter &painter, QRect &rect, range_t sampleRange) { if (!inputSource || inputSource->count() == 0) return; size_t sampleOffset = sampleRange.minimum % (getStride() * linesPerTile()); size_t tileID = sampleRange.minimum - sampleOffset; int xoffset = sampleOffset / getStride(); // Paint first (possibly partial) tile painter.drawPixmap(QRect(rect.left(), rect.y(), linesPerTile() - xoffset, height()), *getPixmapTile(tileID), QRect(xoffset, 0, linesPerTile() - xoffset, height())); tileID += getStride() * linesPerTile(); // Paint remaining tiles for (int x = linesPerTile() - xoffset; x < rect.right(); x += linesPerTile()) { // TODO: don't draw past rect.right() // TODO: handle partial final tile painter.drawPixmap(QRect(x, rect.y(), linesPerTile(), height()), *getPixmapTile(tileID), QRect(0, 0, linesPerTile(), height())); tileID += getStride() * linesPerTile(); } } QPixmap* SpectrogramPlot::getPixmapTile(size_t tile) { QPixmap *obj = pixmapCache.object(TileCacheKey(fftSize, zoomLevel, tile)); if (obj != 0) return obj; float *fftTile = getFFTTile(tile); obj = new QPixmap(linesPerTile(), fftSize); QImage image(linesPerTile(), fftSize, QImage::Format_RGB32); float powerRange = -1.0f / std::abs(int(powerMin - powerMax)); for (int y = 0; y < fftSize; y++) { auto scanLine = (QRgb*)image.scanLine(fftSize - y - 1); for (int x = 0; x < linesPerTile(); x++) { float *fftLine = &fftTile[x * fftSize]; float normPower = (fftLine[y] - powerMax) * powerRange; normPower = clamp(normPower, 0.0f, 1.0f); scanLine[x] = colormap[(uint8_t)(normPower * (256 - 1))]; } } obj->convertFromImage(image); pixmapCache.insert(TileCacheKey(fftSize, zoomLevel, tile), obj); return obj; } float* SpectrogramPlot::getFFTTile(size_t tile) { std::array* obj = fftCache.object(TileCacheKey(fftSize, zoomLevel, tile)); if (obj != nullptr) return obj->data(); std::array* destStorage = new std::array; float *ptr = destStorage->data(); size_t sample = tile; while ((ptr - destStorage->data()) < tileSize) { getLine(ptr, sample); sample += getStride(); ptr += fftSize; } fftCache.insert(TileCacheKey(fftSize, zoomLevel, tile), destStorage); return destStorage->data(); } void SpectrogramPlot::getLine(float *dest, size_t sample) { if (inputSource && fft) { auto buffer = inputSource->getSamples(sample, fftSize); if (buffer == nullptr) { auto neg_infinity = -1 * std::numeric_limits::infinity(); for (int i = 0; i < fftSize; i++, dest++) *dest = neg_infinity; return; } for (int i = 0; i < fftSize; i++) { buffer[i] *= window[i]; } fft->process(buffer.get(), buffer.get()); const float invFFTSize = 1.0f / fftSize; const float logMultiplier = 10.0f / log2f(10.0f); for (int i = 0; i < fftSize; i++) { // Start from the middle of the FFTW array and wrap // to rearrange the data int k = i ^ (fftSize >> 1); auto s = buffer[k] * invFFTSize; float power = s.real() * s.real() + s.imag() * s.imag(); float logPower = log2f(power) * logMultiplier; *dest = logPower; dest++; } } } int SpectrogramPlot::getStride() { return fftSize / zoomLevel; } float SpectrogramPlot::getTunerPhaseInc() { auto freq = 0.5f - tuner.centre() / (float)fftSize; return freq * Tau; } std::vector SpectrogramPlot::getTunerTaps() { float cutoff = tuner.deviation() / (float)fftSize; float gain = pow(10.0f, powerMax / -10.0f); auto atten = 60.0f; auto len = estimate_req_filter_len(std::min(cutoff, 0.05f), atten); auto taps = std::vector(len); liquid_firdes_kaiser(len, cutoff, atten, 0.0f, taps.data()); std::transform(taps.begin(), taps.end(), taps.begin(), std::bind1st(std::multiplies(), gain)); return taps; } int SpectrogramPlot::linesPerTile() { return tileSize / fftSize; } bool SpectrogramPlot::mouseEvent(QEvent::Type type, QMouseEvent event) { if (tunerEnabled()) return tuner.mouseEvent(type, event); return false; } std::shared_ptr SpectrogramPlot::output() { return tunerTransform; } void SpectrogramPlot::setFFTSize(int size) { float sizeScale = float(size) / float(fftSize); fftSize = size; fft.reset(new FFT(fftSize)); window.reset(new float[fftSize]); for (int i = 0; i < fftSize; i++) { window[i] = 0.5f * (1.0f - cos(Tau * i / (fftSize - 1))); } if (inputSource->realSignal()) { setHeight(fftSize/2); } else { setHeight(fftSize); } auto dev = tuner.deviation(); auto centre = tuner.centre(); tuner.setHeight(height()); tuner.setDeviation( dev * sizeScale ); tuner.setCentre( centre * sizeScale ); } void SpectrogramPlot::setPowerMax(int power) { powerMax = power; pixmapCache.clear(); tunerMoved(); } void SpectrogramPlot::setPowerMin(int power) { powerMin = power; pixmapCache.clear(); } void SpectrogramPlot::setZoomLevel(int zoom) { zoomLevel = zoom; } void SpectrogramPlot::setSampleRate(size_t rate) { sampleRate = rate; } void SpectrogramPlot::enableScales(bool enabled) { frequencyScaleEnabled = enabled; } bool SpectrogramPlot::tunerEnabled() { return (tunerTransform->subscriberCount() > 0); } void SpectrogramPlot::tunerMoved() { tunerTransform->setFrequency(getTunerPhaseInc()); tunerTransform->setTaps(getTunerTaps()); tunerTransform->setRelativeBandwith(tuner.deviation() * 2.0 / height()); // TODO: for invalidating traceplot cache, this shouldn't really go here QPixmapCache::clear(); emit repaint(); } uint qHash(const TileCacheKey &key, uint seed) { return key.fftSize ^ key.zoomLevel ^ key.sample ^ seed; } inspectrum-0.2.3/spectrogramplot.h000066400000000000000000000062201375676064500173260ustar00rootroot00000000000000/* * Copyright (C) 2015, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include "fft.h" #include "inputsource.h" #include "plot.h" #include "tuner.h" #include "tunertransform.h" #include #include #include class TileCacheKey; class SpectrogramPlot : public Plot { Q_OBJECT public: SpectrogramPlot(std::shared_ptr>> src); void invalidateEvent() override; std::shared_ptr output() override; void paintFront(QPainter &painter, QRect &rect, range_t sampleRange) override; void paintMid(QPainter &painter, QRect &rect, range_t sampleRange) override; bool mouseEvent(QEvent::Type type, QMouseEvent event) override; std::shared_ptr>> input() { return inputSource; }; void setSampleRate(size_t sampleRate); bool tunerEnabled(); void enableScales(bool enabled); public slots: void setFFTSize(int size); void setPowerMax(int power); void setPowerMin(int power); void setZoomLevel(int zoom); void tunerMoved(); private: const int linesPerGraduation = 50; static const int tileSize = 65536; // This must be a multiple of the maximum FFT size std::shared_ptr>> inputSource; std::unique_ptr fft; std::unique_ptr window; QCache pixmapCache; QCache> fftCache; uint colormap[256]; int fftSize; int zoomLevel; float powerMax; float powerMin; size_t sampleRate; bool frequencyScaleEnabled; Tuner tuner; std::shared_ptr tunerTransform; QPixmap* getPixmapTile(size_t tile); float* getFFTTile(size_t tile); void getLine(float *dest, size_t sample); int getStride(); float getTunerPhaseInc(); std::vector getTunerTaps(); int linesPerTile(); void paintFrequencyScale(QPainter &painter, QRect &rect); }; class TileCacheKey { public: TileCacheKey(int fftSize, int zoomLevel, size_t sample) { this->fftSize = fftSize; this->zoomLevel = zoomLevel; this->sample = sample; } bool operator==(const TileCacheKey &k2) const { return (this->fftSize == k2.fftSize) && (this->zoomLevel == k2.zoomLevel) && (this->sample == k2.sample); } int fftSize; int zoomLevel; size_t sample; }; inspectrum-0.2.3/subscriber.h000066400000000000000000000015161375676064500162470ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once class Subscriber { public: virtual void invalidateEvent() = 0; }; inspectrum-0.2.3/threshold.cpp000066400000000000000000000021731375676064500164330ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "threshold.h" Threshold::Threshold(std::shared_ptr> src) : SampleBuffer(src) { } void Threshold::work(void *input, void *output, int count, size_t sampleid) { auto in = static_cast(input); auto out = static_cast(output); std::transform(in, in + count, out, [](float s) { return (s > 0) ? 1.0f : 0.0f; }); } inspectrum-0.2.3/threshold.h000066400000000000000000000017531375676064500161030ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include "samplebuffer.h" class Threshold : public SampleBuffer { public: Threshold(std::shared_ptr> src); void work(void *input, void *output, int count, size_t sampleid) override; }; inspectrum-0.2.3/traceplot.cpp000066400000000000000000000113161375676064500164330ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include #include #include #include "samplesource.h" #include "traceplot.h" TracePlot::TracePlot(std::shared_ptr source) : Plot(source) { connect(this, &TracePlot::imageReady, this, &TracePlot::handleImage); } void TracePlot::paintMid(QPainter &painter, QRect &rect, range_t sampleRange) { if (sampleRange.length() == 0) return; int samplesPerColumn = sampleRange.length() / rect.width(); int samplesPerTile = tileWidth * samplesPerColumn; size_t tileID = sampleRange.minimum / samplesPerTile; size_t tileOffset = sampleRange.minimum % samplesPerTile; // Number of samples to skip from first image tile int xOffset = tileOffset / samplesPerColumn; // Number of columns to skip from first image tile // Paint first (possibly partial) tile painter.drawPixmap( QRect(rect.x(), rect.y(), tileWidth - xOffset, height()), getTile(tileID++, samplesPerTile), QRect(xOffset, 0, tileWidth - xOffset, height()) ); // Paint remaining tiles for (int x = tileWidth - xOffset; x < rect.right(); x += tileWidth) { painter.drawPixmap( QRect(x, rect.y(), tileWidth, height()), getTile(tileID++, samplesPerTile) ); } } QPixmap TracePlot::getTile(size_t tileID, size_t sampleCount) { QPixmap pixmap(tileWidth, height()); QString key; QTextStream(&key) << "traceplot_" << this << "_" << tileID << "_" << sampleCount; if (QPixmapCache::find(key, &pixmap)) return pixmap; if (!tasks.contains(key)) { range_t sampleRange{tileID * sampleCount, (tileID + 1) * sampleCount}; QtConcurrent::run(this, &TracePlot::drawTile, key, QRect(0, 0, tileWidth, height()), sampleRange); tasks.insert(key); } pixmap.fill(Qt::transparent); return pixmap; } void TracePlot::drawTile(QString key, const QRect &rect, range_t sampleRange) { QImage image(rect.size(), QImage::Format_ARGB32); image.fill(Qt::transparent); QPainter painter(&image); painter.setRenderHint(QPainter::Antialiasing, true); auto firstSample = sampleRange.minimum; auto length = sampleRange.length(); // Is it a 2-channel (complex) trace? if (auto src = dynamic_cast>*>(sampleSource.get())) { auto samples = src->getSamples(firstSample, length); if (samples == nullptr) return; painter.setPen(Qt::red); plotTrace(painter, rect, reinterpret_cast(samples.get()), length, 2); painter.setPen(Qt::blue); plotTrace(painter, rect, reinterpret_cast(samples.get())+1, length, 2); // Otherwise is it single channel? } else if (auto src = dynamic_cast*>(sampleSource.get())) { auto samples = src->getSamples(firstSample, length); if (samples == nullptr) return; painter.setPen(Qt::green); plotTrace(painter, rect, samples.get(), length, 1); } else { throw std::runtime_error("TracePlot::paintMid: Unsupported source type"); } emit imageReady(key, image); } void TracePlot::handleImage(QString key, QImage image) { auto pixmap = QPixmap::fromImage(image); QPixmapCache::insert(key, pixmap); tasks.remove(key); emit repaint(); } void TracePlot::plotTrace(QPainter &painter, const QRect &rect, float *samples, size_t count, int step = 1) { QPainterPath path; range_t xRange{0, rect.width() - 2.f}; range_t yRange{0, rect.height() - 2.f}; const float xStep = 1.0 / count * rect.width(); for (size_t i = 0; i < count; i++) { float sample = samples[i*step]; float x = i * xStep; float y = (1 - sample) * (rect.height() / 2); x = xRange.clip(x) + rect.x(); y = yRange.clip(y) + rect.y(); if (i == 0) path.moveTo(x, y); else path.lineTo(x, y); } painter.drawPath(path); } inspectrum-0.2.3/traceplot.h000066400000000000000000000030001375676064500160670ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include "abstractsamplesource.h" #include "plot.h" #include "util.h" class TracePlot : public Plot { Q_OBJECT public: TracePlot(std::shared_ptr source); void paintMid(QPainter &painter, QRect &rect, range_t sampleRange); std::shared_ptr source() { return sampleSource; }; signals: void imageReady(QString key, QImage image); public slots: void handleImage(QString key, QImage image); private: QSet tasks; const int tileWidth = 1000; QPixmap getTile(size_t tileID, size_t sampleCount); void drawTile(QString key, const QRect &rect, range_t sampleRange); void plotTrace(QPainter &painter, const QRect &rect, float *samples, size_t count, int step); }; inspectrum-0.2.3/tuner.cpp000066400000000000000000000072071375676064500155770ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include "tuner.h" Tuner::Tuner(int height, QObject * parent) : height(height), QObject::QObject(parent) { minCursor = new Cursor(Qt::Horizontal, Qt::SizeVerCursor, this); cfCursor = new Cursor(Qt::Horizontal, Qt::SizeAllCursor, this); maxCursor = new Cursor(Qt::Horizontal, Qt::SizeVerCursor, this); connect(minCursor, &Cursor::posChanged, this, &Tuner::cursorMoved); connect(cfCursor, &Cursor::posChanged, this, &Tuner::cursorMoved); connect(maxCursor, &Cursor::posChanged, this, &Tuner::cursorMoved); cfCursor->setPos(100); _deviation = 10; updateCursors(); } int Tuner::centre() { return cfCursor->pos(); } void Tuner::cursorMoved() { Cursor *sender = static_cast(QObject::sender()); if (sender != cfCursor) { // Limit cursor positions to within plot auto posRange = range_t{0, height}; sender->setPos(posRange.clip(sender->pos())); // Limit deviation range to half of total BW (either side of centre) auto deviationRange = range_t{2, height / 2}; _deviation = deviationRange.clip(std::abs(sender->pos() - cfCursor->pos())); } else { auto cfRange = range_t{_deviation, height - _deviation}; sender->setPos(cfRange.clip(sender->pos())); } updateCursors(); } int Tuner::deviation() { return _deviation; } bool Tuner::mouseEvent(QEvent::Type type, QMouseEvent event) { if (cfCursor->mouseEvent(type, event)) return true; if (minCursor->mouseEvent(type, event)) return true; if (maxCursor->mouseEvent(type, event)) return true; return false; } void Tuner::paintFront(QPainter &painter, QRect &rect, range_t sampleRange) { painter.save(); QRect cursorRect(rect.left(), rect.top() + minCursor->pos(), rect.right(), maxCursor->pos() - minCursor->pos()); // Draw translucent white fill for highlight painter.fillRect( cursorRect, QBrush(QColor(255, 255, 255, 50)) ); // Draw tuner edges painter.setPen(QPen(Qt::white, 1, Qt::SolidLine)); painter.drawLine(rect.left(), rect.top() + minCursor->pos(), rect.right(), rect.top() + minCursor->pos()); painter.drawLine(rect.left(), rect.top() + maxCursor->pos(), rect.right(), rect.top() + maxCursor->pos()); // Draw centre freq painter.setPen(QPen(Qt::red, 1, Qt::SolidLine)); painter.drawLine(rect.left(), rect.top() + cfCursor->pos(), rect.right(), rect.top() + cfCursor->pos()); painter.restore(); } void Tuner::setCentre(int centre) { cfCursor->setPos(centre); updateCursors(); } void Tuner::setDeviation(int dev) { _deviation = std::max(1, dev); updateCursors(); } void Tuner::setHeight(int height) { this->height = height; } void Tuner::updateCursors() { minCursor->setPos(cfCursor->pos() - _deviation); maxCursor->setPos(cfCursor->pos() + _deviation); emit tunerMoved(); } inspectrum-0.2.3/tuner.h000066400000000000000000000027031375676064500152400ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include #include #include "cursor.h" #include "util.h" class Tuner : public QObject { Q_OBJECT public: Tuner(int height, QObject * parent); int centre(); int deviation(); bool mouseEvent(QEvent::Type, QMouseEvent event); void paintFront(QPainter &painter, QRect &rect, range_t sampleRange); void setCentre(int centre); void setDeviation(int dev); void setHeight(int height); public slots: void cursorMoved(); signals: void tunerMoved(); private: void updateCursors(); Cursor *minCursor; Cursor *cfCursor; Cursor *maxCursor; int _deviation; int height; }; inspectrum-0.2.3/tunertransform.cpp000066400000000000000000000042151375676064500175270ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "tunertransform.h" #include #include "util.h" TunerTransform::TunerTransform(std::shared_ptr>> src) : SampleBuffer(src), frequency(0), bandwidth(1.), taps{1.0f} { } void TunerTransform::work(void *input, void *output, int count, size_t sampleid) { auto out = static_cast*>(output); std::unique_ptr[]> temp(new std::complex[count]); // Mix down nco_crcf mix = nco_crcf_create(LIQUID_NCO); nco_crcf_set_phase(mix, fmodf(frequency * sampleid, Tau)); nco_crcf_set_frequency(mix, frequency); nco_crcf_mix_block_down(mix, static_cast*>(input), temp.get(), count); nco_crcf_destroy(mix); // Filter firfilt_crcf filter = firfilt_crcf_create(taps.data(), taps.size()); for (int i = 0; i < count; i++) { firfilt_crcf_push(filter, temp[i]); firfilt_crcf_execute(filter, &out[i]); } firfilt_crcf_destroy(filter); } void TunerTransform::setFrequency(float frequency) { this->frequency = frequency; } void TunerTransform::setTaps(std::vector taps) { this->taps = taps; } float TunerTransform::relativeBandwidth() { return bandwidth; } void TunerTransform::setRelativeBandwith(float bandwidth) { this->bandwidth = bandwidth; } inspectrum-0.2.3/tunertransform.h000066400000000000000000000024541375676064500171770ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include "samplebuffer.h" #include class TunerTransform : public SampleBuffer, std::complex> { private: float frequency; float bandwidth; std::vector taps; public: TunerTransform(std::shared_ptr>> src); void work(void *input, void *output, int count, size_t sampleid) override; void setFrequency(float frequency); void setTaps(std::vector taps); void setRelativeBandwith(float bandwidth); float relativeBandwidth() override; }; inspectrum-0.2.3/util.cpp000066400000000000000000000027461375676064500154220ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "util.h" std::string formatSIValue(float value) { std::map prefixes = { { 9, "G" }, { 6, "M" }, { 3, "k" }, { 0, "" }, { -3, "m" }, { -6, "µ" }, { -9, "n" }, }; int power = 0; while (value < 1.0f && power > -9) { value *= 1e3; power -= 3; } while (value >= 1e3 && power < 9) { value *= 1e-3; power += 3; } std::stringstream ss; ss << value << prefixes[power]; return ss.str(); } template<> const char* getFileNameFilter>() { return "complex file (*.fc32)"; }; template<> const char* getFileNameFilter() { return "float file (*.f32)"; }; inspectrum-0.2.3/util.h000066400000000000000000000053611375676064500150630ustar00rootroot00000000000000/* * Copyright (C) 2016, Mike Walters * Copyright (C) 2016, Jared Boone, ShareBrained Technology, Inc. * * This file is part of inspectrum. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include #include #include static const double Tau = M_PI * 2.0; template const T& clamp (const T& value, const T& min, const T& max) { return std::min(max, std::max(min, value)); } template struct iter_pair_range : std::pair { iter_pair_range(std::pair const& x) : std::pair(x) { } Iter begin() const { return this->first; } Iter end() const { return this->second; } }; template inline iter_pair_range as_range(std::pair const& x) { return iter_pair_range(x); } template struct range_t { T minimum; T maximum; range_t& operator=(const range_t &other) { minimum = other.minimum; maximum = other.maximum; } range_t& operator=(const std::initializer_list &other) { if (other.size() == 2) { minimum = *other.begin(); maximum = *(other.begin() + 1); } return *this; } const T length() { return maximum - minimum; } const T& clip(const T& value) const { return clamp(value, minimum, maximum); } void reset_if_outside(T& value, const T& reset_value) const { if( (value < minimum ) || (value > maximum ) ) { value = reset_value; } } bool below_range(const T& value) const { return value < minimum; } bool contains(const T& value) const { // TODO: Subtle gotcha here! Range test doesn't include maximum! return (value >= minimum) && (value < maximum); } bool out_of_range(const T& value) const { // TODO: Subtle gotcha here! Range test in contains() doesn't include maximum! return !contains(value); } }; std::string formatSIValue(float value); template const char* getFileNameFilter();