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r2t2 - Transmit data through the PC speaker (#32)

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* inital implementation

* remove file

* ggwave-cli : txProtocol -> txProtocolId

* ggwave : add custom protocol enum values

* r2t2 : use cutom protocols

* r2t2 : build only on Unix systems

* r2t2 : remove thread

* r2t2-rx : wip

* r2t2 : wasm build ready + various fixes

* r2t2 : error message

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* r2t2 : length 16

* r2t2 : use slow protocol by default

* r2t2 : add timestamp

* r2t2 : update html

* r2t2 : update github link

* r2t2 : more robust tx

* r2t2 : add option to use beep command

* emscripten : cannot use requestAnimationFrame when capturing audio

This causes the queued audio buffer to grow indefinitely when the page
is not focused, causing the process to run out of memory.

* r2t2 : disable beep option

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* r2t2 : add example to README
This commit is contained in:
Georgi Gerganov
2021-04-18 13:20:45 +03:00
committed by GitHub
parent 464aa2283b
commit 00b23ff54f
28 changed files with 4153 additions and 29 deletions
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3
examples/ggwave-common-sdl2.cpp
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@@ -169,7 +169,7 @@ bool GGWave_init(
SDL_zero(g_obtainedSpecInp);
if (captureId >= 0) {
printf("Attempt to open capture device %d : '%s' ...\n", captureId, SDL_GetAudioDeviceName(captureId, SDL_FALSE));
printf("Attempt to open capture device %d : '%s' ...\n", captureId, SDL_GetAudioDeviceName(captureId, SDL_TRUE));
g_devIdInp = SDL_OpenAudioDevice(SDL_GetAudioDeviceName(captureId, SDL_TRUE), SDL_TRUE, &captureSpec, &g_obtainedSpecInp, 0);
} else {
printf("Attempt to open default capture device ...\n");
@@ -254,6 +254,7 @@ bool GGWave_mainLoop() {
if (::getTime_ms(tLastNoData, tNow) > 500.0f) {
g_ggWave->decode(cbWaveformInp);
if ((int) SDL_GetQueuedAudioSize(g_devIdInp) > 32*g_ggWave->getSamplesPerFrame()*g_ggWave->getSampleSizeBytesInp()) {
fprintf(stderr, "Warning: slow processing, clearing queued audio buffer of %d bytes ...", SDL_GetQueuedAudioSize(g_devIdInp));
SDL_ClearQueuedAudio(g_devIdInp);
}
} else {