Cross-Platform SDR Software
This report presents the forensic synthetic code analysis of AlexandreRouma/SDRPlusPlus, a C++ project with 6,129 GitHub stars. SynthScan v2.0 examined 194,763 lines of code across 642 source files, recording 629 pattern matches distributed across 8 syntactic categories. The overall adjusted score of 2.9 places this repository in the Likely human-written band.
The scanner applied 160+ deterministic lexical heuristics, multi-line block detectors, abstract syntax tree depth profilers, and a cross-file Jaccard similarity matrix to construct a statistically normalised synthetic code estimate. All matches are individually weighted by severity coefficient and contextual multiplier before summation, and the resulting headline score is temporally discounted to account for the repository's development history relative to the commercial emergence of large language model coding tooling (November 2022 onward).
This chart maps the temporal evolution of the adjusted synthetic code score across successive scan runs. An upward trajectory indicates ongoing incorporation of AI-generated code or expanding LLM-assisted scaffolding; a stable or declining trajectory may reflect active human refactoring, code removal, or the adoption of stricter authorship policies. The dashed secondary line (right axis) independently tracks total raw pattern hit count, which can diverge from the normalised score when codebase size changes significantly between scans.
Classifies detected patterns by their diagnostic confidence and structural impact. CRITICAL patterns (coefficient 10) represent definitive synthetic signatures — hallucinated imports, explicit LLM attribution metadata — virtually never produced by human authors. HIGH (5) indicates strong structural tells such as cross-file repetition or cross-linguistic idioms. MEDIUM (2) covers recognisable conversational padding and AI-specific vocabulary. LOW (1) captures subtle indicators like tautological comments and generic boilerplate that require density to carry independent signal.
This horizontal bar chart decomposes the repository's raw synthetic code score by top-level directory, allowing you to pinpoint precisely which modules or components carry the highest AI authorship density. Directories with disproportionately high scores relative to their size warrant targeted manual review: concentrated AI signatures often trace back to mass-generated configuration layers, auto-ported test suites, LLM-scaffolded boilerplate classes, or entire subsystems authored under heavy copilot assistance. Use this view to prioritise your human code-review effort.
The scanner identified 629 distinct pattern matches across 8 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a statistically significant AI authorship indicator. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the diagnostic confidence level (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — comment-context matches receive a ×1.5 weight because LLMs systematically over-annotate. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier as dense clusters constitute far stronger evidence of synthetic authorship than isolated hits.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | sink_modules/portaudio_sink/src/main.cpp | 1 | #include <imgui.h> | COMMENT |
| LOW | sink_modules/network_sink/src/main.cpp | 1 | #include <utils/networking.h> | COMMENT |
| LOW | sink_modules/audio_sink/src/main.cpp | 1 | #include <imgui.h> | COMMENT |
| LOW | sink_modules/android_audio_sink/src/main.cpp | 1 | #include <imgui.h> | COMMENT |
| LOW | sink_modules/new_portaudio_sink/src/main.cpp | 1 | #include <imgui.h> | COMMENT |
| LOW | core/libcorrect/tools/find_conv_optim_poly.c | 1 | #include <stdbool.h> | COMMENT |
| LOW | core/libcorrect/tools/find_conv_libfec_poly.c | 1 | #include <stdlib.h> | COMMENT |
| LOW | core/libcorrect/tools/find_conv_libfec_poly.c | 41 | void find_poly_coeff(size_t rate, size_t order, uint8_t *msg, size_t msg_len, libfec_decoder_t libfec, correct_convoluti | COMMENT |
| LOW | core/libcorrect/tools/find_conv_libfec_poly.c | 141 | // find the complete set of coefficients that are "baked in" to | COMMENT |
| LOW | core/libcorrect/tools/find_conv_optim_poly_annealing.c | 1 | #include <stdbool.h> | COMMENT |
| LOW | core/libcorrect/include/fec_shim.h | 1 | #ifndef CORRECT_FEC_H | COMMENT |
| LOW | core/libcorrect/include/fec_shim.h | 21 | // and vice-versa | COMMENT |
| LOW | core/libcorrect/include/correct/convolutional.h | 1 | #ifndef CORRECT_CONVOLUTIONAL | COMMENT |
| LOW | core/libcorrect/include/correct/reed-solomon.h | 1 | #ifndef CORRECT_REED_SOLOMON | COMMENT |
| LOW | …correct/include/correct/convolutional/history_buffer.h | 1 | #include "correct/convolutional.h" | COMMENT |
| LOW | …rect/include/correct/convolutional/sse/convolutional.h | 1 | #include "correct/convolutional/convolutional.h" | COMMENT |
| LOW | …libcorrect/include/correct/reed-solomon/reed-solomon.h | 1 | #include "correct/reed-solomon.h" | COMMENT |
| LOW | core/libcorrect/include/correct/reed-solomon/field.h | 21 | // because we are doing lookup here, we can safely skip the wrapover check | COMMENT |
| LOW | core/libcorrect/include/correct/reed-solomon/encode.h | 1 | #include "correct/reed-solomon.h" | COMMENT |
| LOW | core/libcorrect/include/correct/reed-solomon/decode.h | 1 | #include "correct/reed-solomon.h" | COMMENT |
| LOW | core/libcorrect/src/convolutional/decode.c | 101 | // errors | COMMENT |
| LOW | core/libcorrect/src/convolutional/sse/decode.c | 41 | distance_t *write_errors = conv->errors->write_errors; | COMMENT |
| LOW | core/libcorrect/src/convolutional/sse/decode.c | 61 | // these two share a predecessor because their high n - 1 bits are the | COMMENT |
| LOW | core/libcorrect/src/convolutional/sse/decode.c | 81 | COMMENT | |
| LOW | core/libcorrect/src/reed-solomon/decode.c | 1 | #include "correct/reed-solomon/encode.h" | COMMENT |
| LOW | core/libcorrect/src/reed-solomon/decode.c | 141 | // this is where we find out if we are have too many errors to recover from | COMMENT |
| LOW | core/libcorrect/src/reed-solomon/decode.c | 161 | // that is, the elements in the finite field which can be added to the received | COMMENT |
| LOW | core/backends/android/backend.cpp | 1 | #include <backend.h>log | COMMENT |
| LOW | core/backends/android/imgui/imgui_impl_android.cpp | 1 | // dear imgui: Platform Binding for Android native app | COMMENT |
| LOW | core/backends/android/imgui/imgui_impl_android.cpp | 21 | // (minor and older changes stripped away, please see git history for details) | COMMENT |
| LOW | core/backends/android/imgui/imgui_impl_android.h | 1 | // dear imgui: Platform Binding for Android native app | COMMENT |
| LOW | core/backends/glfw/backend.cpp | 1 | #include <backend.h> | COMMENT |
| LOW | core/backends/glfw/imgui/imgui_impl_glfw.h | 1 | // dear imgui: Platform Backend for GLFW | COMMENT |
| LOW | core/backends/glfw/imgui/imgui_impl_glfw.cpp | 1 | // dear imgui: Platform Backend for GLFW | COMMENT |
| LOW | core/backends/glfw/imgui/imgui_impl_glfw.cpp | 21 | // 2021-01-20: Inputs: calling new io.AddKeyAnalogEvent() for gamepad support, instead of writing directly to io.NavInp | COMMENT |
| LOW | core/backends/glfw/imgui/imgui_impl_glfw.cpp | 41 | // 2018-03-20: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors flag + honor ImGuiConfigFlags_NoMouseCurso | COMMENT |
| LOW | core/backends/glfw/imgui/imgui_impl_glfw.cpp | 61 | #pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" | COMMENT |
| LOW | core/backends/glfw/imgui/imgui_impl_glfw.cpp | 641 | #if defined(__clang__) | COMMENT |
| LOW | core/src/version.h | 1 | #pragma once | COMMENT |
| LOW | core/src/json.hpp | 41 | #include <iosfwd> // istream, ostream | COMMENT |
| LOW | core/src/json.hpp | 61 | #include <map> // map | COMMENT |
| LOW | core/src/json.hpp | 121 | COMMENT | |
| LOW | core/src/json.hpp | 141 | #define JSON_HEDLEY_CONCAT_EX(a,b) a##b | COMMENT |
| LOW | core/src/json.hpp | 161 | #define JSON_HEDLEY_VERSION_ENCODE(major,minor,revision) (((major) * 1000000) + ((minor) * 1000) + (revision)) | COMMENT |
| LOW | core/src/json.hpp | 181 | #if defined(__GNUC__) && defined(__GNUC_PATCHLEVEL__) | COMMENT |
| LOW | core/src/json.hpp | 201 | #elif defined(_MSC_FULL_VER) | COMMENT |
| LOW | core/src/json.hpp | 221 | #undef JSON_HEDLEY_INTEL_VERSION | COMMENT |
| LOW | core/src/json.hpp | 241 | #if defined(__PGI) && defined(__PGIC__) && defined(__PGIC_MINOR__) && defined(__PGIC_PATCHLEVEL__) | COMMENT |
| LOW | core/src/json.hpp | 261 | #elif defined(__SUNPRO_CC) && (__SUNPRO_CC > 0x1000) | COMMENT |
| LOW | core/src/json.hpp | 281 | #endif | COMMENT |
| LOW | core/src/json.hpp | 301 | #if defined(JSON_HEDLEY_ARM_VERSION_CHECK) | COMMENT |
| LOW | core/src/json.hpp | 321 | #if defined(JSON_HEDLEY_IBM_VERSION_CHECK) | COMMENT |
| LOW | core/src/json.hpp | 341 | #define JSON_HEDLEY_TI_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION_ | COMMENT |
| LOW | core/src/json.hpp | 361 | #if defined(JSON_HEDLEY_TI_CL2000_VERSION_CHECK) | COMMENT |
| LOW | core/src/json.hpp | 381 | #define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL430_VERSION >= JSON_HEDLEY_VERSION_E | COMMENT |
| LOW | core/src/json.hpp | 401 | COMMENT | |
| LOW | core/src/json.hpp | 421 | #if defined(__TI_COMPILER_VERSION__) && defined(__C7000__) | COMMENT |
| LOW | core/src/json.hpp | 441 | #if defined(JSON_HEDLEY_TI_CLPRU_VERSION_CHECK) | COMMENT |
| LOW | core/src/json.hpp | 461 | #if defined(JSON_HEDLEY_CRAY_VERSION_CHECK) | COMMENT |
| LOW | core/src/json.hpp | 481 | #if defined(JSON_HEDLEY_IAR_VERSION_CHECK) | COMMENT |
| 548 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| HIGH | contributing.md | 5 | Submitting code, pull requests or issues generated by AI will result in a permanent ban from all of my (Alexandre Rouma) | CODE |
| HIGH | core/src/imgui/imgui_draw.cpp | 2315 | const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW⚡ | core/src/imgui/imgui_demo.cpp | 5393 | ImGui::TextWrapped("Lorem ipsum dolor sit amet"); | CODE |
| LOW⚡ | core/src/imgui/imgui_demo.cpp | 5393 | ImGui::TextWrapped("Lorem ipsum dolor sit amet"); | CODE |
| LOW⚡ | core/src/imgui/imgui_demo.cpp | 5395 | ImGui::Text("Lorem ipsum dolor sit amet"); | CODE |
| LOW⚡ | core/src/imgui/imgui_demo.cpp | 5395 | ImGui::Text("Lorem ipsum dolor sit amet"); | CODE |
| LOW | core/src/imgui/imgui_demo.cpp | 7018 | ImGui::TextWrapped("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor i | CODE |
| LOW | core/src/imgui/imgui_demo.cpp | 7018 | ImGui::TextWrapped("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor i | CODE |
| LOW | core/src/imgui/imgui_demo.cpp | 7659 | ImGui::TextWrapped("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut | CODE |
| LOW | core/src/imgui/imgui_demo.cpp | 7659 | ImGui::TextWrapped("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | make_macos_bundle.sh | 21 | # Create the icon file | COMMENT |
| MEDIUM | make_macos_bundle.sh | 24 | # Create the property list | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | core/src/imgui/imgui.cpp | 2623 | // Step 0: Let you process the first element (regardless of it being visible or not, so we can measure the element h | COMMENT |
| LOW | core/src/imgui/imgui.cpp | 2642 | // Step 1: Let the clipper infer height from first range | COMMENT |
| LOW | core/src/imgui/imgui.cpp | 12985 | // Step 0: stack query | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | core/src/imgui/imgui.cpp | 2623 | // Step 0: Let you process the first element (regardless of it being visible or not, so we can measure the element h | COMMENT |
| LOW | core/src/imgui/imgui.cpp | 2642 | // Step 1: Let the clipper infer height from first range | COMMENT |
| LOW | core/src/imgui/imgui.cpp | 12985 | // Step 0: stack query | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | core/src/imgui/imgui_widgets.cpp | 6134 | // Tip: pass a non-visible label (e.g. "##hello") then you can use the space to draw other text or image. | COMMENT |
| LOW | core/src/imgui/imgui.cpp | 602 | - 2017/08/25 (1.52) - io.MousePos needs to be set to ImVec2(-FLT_MAX,-FLT_MAX) when mouse is unavailable/missing. Previ | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | macos/bundle_utils.sh | 129 | # Check if file exists | COMMENT |