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ggwave v0.2.0 (#20)

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* ggwave : add support for fixed length transmissions

* spectrogram : add sample rate offset for debugging purposes

* gwave : fix decoding bug

* waver : wip

* wip

* remove post-marker frames

* add resampler

* ggwave : input/output resampling

* ggwave : fix python build

* ggwave : update spm

* ggwave : refactor duplicate encode/decode code

* ggwave : fix sound marker detection

* waver : fix typo

* ggwave : fix uninitialized members

* ggwave : more sensitive receive
This commit is contained in:
Georgi Gerganov
2021-02-20 19:16:15 +02:00
committed by GitHub
parent ff5c569071
commit 19bf22df0d
17 changed files with 921 additions and 366 deletions
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22
examples/spectrogram/main.cpp
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@@ -31,10 +31,10 @@ struct FreqData {
bool g_isCapturing = true;
constexpr int g_nSamplesPerFrame = 1024;
int g_binMin = 40;
int g_binMax = 40 + 96;
int g_binMin = 20;
int g_binMax = 60;
float g_scale = 5.0;
float g_scale = 30.0;
bool g_showControls = true;
@@ -42,6 +42,8 @@ int g_freqDataHead = 0;
int g_freqDataSize = 0;
std::vector<FreqData> g_freqData;
int g_sampleRateOffset = 0;
}
void GGWave_setDefaultCaptureDeviceName(std::string name) {
@@ -90,7 +92,7 @@ bool GGWave_init(
SDL_AudioSpec playbackSpec;
SDL_zero(playbackSpec);
playbackSpec.freq = GGWave::kBaseSampleRate;
playbackSpec.freq = GGWave::kBaseSampleRate + g_sampleRateOffset;
playbackSpec.format = AUDIO_S16SYS;
playbackSpec.channels = 1;
playbackSpec.samples = 16*1024;
@@ -133,7 +135,7 @@ bool GGWave_init(
if (g_devIdInp == 0) {
SDL_AudioSpec captureSpec;
captureSpec = g_obtainedSpecOut;
captureSpec.freq = GGWave::kBaseSampleRate;
captureSpec.freq = GGWave::kBaseSampleRate + g_sampleRateOffset;
captureSpec.format = AUDIO_F32SYS;
captureSpec.samples = g_nSamplesPerFrame;
@@ -240,8 +242,9 @@ bool GGWave_deinit() {
SDL_CloseAudioDevice(g_devIdInp);
SDL_PauseAudioDevice(g_devIdOut, 1);
SDL_CloseAudioDevice(g_devIdOut);
SDL_CloseAudio();
SDL_Quit();
g_devIdInp = 0;
g_devIdOut = 0;
return true;
}
@@ -474,6 +477,10 @@ int main(int argc, char** argv) {
ImGui::DragInt("Min", &g_binMin, 1, 0, g_binMax - 1);
ImGui::DragInt("Max", &g_binMax, 1, g_binMin + 1, g_nSamplesPerFrame/2);
ImGui::DragFloat("Scale", &g_scale, 1.0f, 1.0f, 1000.0f);
if (ImGui::SliderInt("Offset", &g_sampleRateOffset, -2048, 2048)) {
GGWave_deinit();
GGWave_init(0, 0);
}
if (ImGui::Button("Pause")) {
togglePause = true;
}
@@ -515,6 +522,7 @@ int main(int argc, char** argv) {
SDL_GL_DeleteContext(gl_context);
SDL_DestroyWindow(window);
SDL_CloseAudio();
SDL_Quit();
return 0;