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Use speaker as audio input

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This commit is contained in:
dijunkun
2024-07-19 14:10:35 +08:00
parent ff6f295fac
commit 5a1e2c5ed9
4 changed files with 65 additions and 24 deletions
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34
src/single_window/render.cpp
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@@ -217,6 +217,40 @@ int Render::Run() {
screen_width_ = DM.w;
screen_height_ = DM.h;
// Audio
SDL_AudioSpec want_in, have_in, want_out, have_out;
SDL_zero(want_in);
want_in.freq = 48000;
want_in.format = AUDIO_S16LSB;
want_in.channels = 1;
want_in.samples = 480;
want_in.callback = SdlCaptureAudioIn;
want_in.userdata = this;
input_dev_ = SDL_OpenAudioDevice(NULL, 1, &want_in, &have_in, 0);
if (input_dev_ == 0) {
SDL_Log("Failed to open input: %s", SDL_GetError());
// return 1;
}
SDL_zero(want_out);
want_out.freq = 48000;
want_out.format = AUDIO_S16LSB;
want_out.channels = 1;
// want_out.silence = 0;
want_out.samples = 480;
want_out.callback = SdlCaptureAudioOut;
want_out.userdata = this;
output_dev_ = SDL_OpenAudioDevice(NULL, 0, &want_out, &have_out, 0);
if (output_dev_ == 0) {
SDL_Log("Failed to open input: %s", SDL_GetError());
// return 1;
}
SDL_PauseAudioDevice(input_dev_, 0);
SDL_PauseAudioDevice(output_dev_, 0);
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();

5
src/single_window/render.h
View File

@@ -61,8 +61,9 @@ class Render {
private:
int ProcessMouseKeyEven(SDL_Event &ev);
void SdlCaptureAudioIn(void *userdata, Uint8 *stream, int len);
void SdlCaptureAudioOut(void *userdata, Uint8 *stream, int len);
static void SdlCaptureAudioIn(void *userdata, Uint8 *stream, int len);
static void SdlCaptureAudioOut(void *userdata, Uint8 *stream, int len);
private:
int SaveSettingsIntoCacheFile();

48
src/single_window/render_callback_func.cpp
View File

@@ -78,34 +78,40 @@ int Render::ProcessMouseKeyEven(SDL_Event &ev) {
}
void Render::SdlCaptureAudioIn(void *userdata, Uint8 *stream, int len) {
if (1) {
if ("Connected" == connection_status_str_) {
SendData(peer_, DATA_TYPE::AUDIO, (const char *)stream, len);
}
} else {
memcpy(audio_buffer_, stream, len);
audio_len_ = len;
SDL_Delay(10);
audio_buffer_fresh_ = true;
}
// Render *render = (Render *)userdata;
// if (1) {
// if ("Connected" == render->connection_status_str_) {
// SendData(render->peer_, DATA_TYPE::AUDIO, (const char *)stream, len);
// }
// } else {
// memcpy(render->audio_buffer_, stream, len);
// render->audio_len_ = len;
// SDL_Delay(10);
// render->audio_buffer_fresh_ = true;
// }
}
void Render::SdlCaptureAudioOut(void *userdata, Uint8 *stream, int len) {
if (!audio_buffer_fresh_) {
return;
Render *render = (Render *)userdata;
if ("Connected" == render->connection_status_str_) {
SendData(render->peer_, DATA_TYPE::AUDIO, (const char *)stream, len);
}
SDL_memset(stream, 0, len);
// if (!render->audio_buffer_fresh_) {
// return;
// }
if (audio_len_ == 0) {
return;
} else {
}
// SDL_memset(stream, 0, len);
len = (len > audio_len_ ? audio_len_ : len);
SDL_MixAudioFormat(stream, audio_buffer_, AUDIO_S16LSB, len,
SDL_MIX_MAXVOLUME);
audio_buffer_fresh_ = false;
// if (render->audio_len_ == 0) {
// return;
// } else {
// }
// len = (len > render->audio_len_ ? render->audio_len_ : len);
// SDL_MixAudioFormat(stream, render->audio_buffer_, AUDIO_S16LSB, len,
// SDL_MIX_MAXVOLUME);
// render->audio_buffer_fresh_ = false;
}
void Render::OnReceiveVideoBufferCb(const char *data, size_t size,