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Open microphone in separate thread :(

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This commit is contained in:
Eidolon 2026-05-06 21:01:05 -05:00
parent f460387199
commit 058d15b41f
1 changed files with 49 additions and 19 deletions
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68
src/sdl/new_sound.cpp
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@ -199,6 +199,8 @@ static void (*music_fade_callback)();
static SDL_AudioDeviceID g_device_id;
static SDL_AudioDeviceID g_input_device_id;
static SDL_mutex* microphone_mutex = nullptr;
static SDL_Thread* microphone_thread = nullptr;
void* I_GetSfx(sfxinfo_t* sfx)
{
@ -363,6 +365,8 @@ void initialize_sound()
}
}
microphone_mutex = SDL_CreateMutex();
sound_started = true;
}
@ -381,11 +385,13 @@ void I_ShutdownSound(void)
SDL_CloseAudioDevice(g_device_id);
g_device_id = 0;
}
SDL_LockMutex(microphone_mutex);
if (g_input_device_id)
{
SDL_CloseAudioDevice(g_input_device_id);
g_input_device_id = 0;
}
SDL_UnlockMutex(microphone_mutex);
master_gain = nullptr;
master = nullptr;
@ -1001,66 +1007,90 @@ void I_UpdateAudioRecorder(void)
boolean I_SoundInputIsEnabled(void)
{
return g_input_device_id != 0;
SDL_LockMutex(microphone_mutex);
boolean ret = g_input_device_id != 0;
SDL_UnlockMutex(microphone_mutex);
return ret;
}
static int microphone_opener(void* data)
{
SDL_AudioSpec input_desired {};
input_desired.format = AUDIO_F32SYS;
input_desired.channels = 1;
input_desired.samples = 1024;
input_desired.freq = 48000;
SDL_AudioSpec input_obtained {};
SDL_AudioDeviceID device_id = SDL_OpenAudioDevice(nullptr, SDL_TRUE, &input_desired, &input_obtained, 0);
if (!device_id)
{
// CONS_Alert(CONS_WARNING, "Failed to open input audio device: %s\n", SDL_GetError());
return 0;
}
if (input_obtained.freq != 48000 || input_obtained.format != AUDIO_F32SYS || input_obtained.channels != 1)
{
// CONS_Alert(CONS_WARNING, "Input audio device has unexpected unusable format: %s\n", SDL_GetError());
return 0;
}
SDL_PauseAudioDevice(device_id, SDL_FALSE);
SDL_LockMutex(microphone_mutex);
g_input_device_id = device_id;
SDL_UnlockMutex(microphone_mutex);
return 0;
}
boolean I_SoundInputSetEnabled(boolean enabled)
{
SDL_LockMutex(microphone_mutex);
if (g_input_device_id == 0 && enabled)
{
if (!sound_started || SDL_GetNumAudioDevices(true) == 0)
{
SDL_UnlockMutex(microphone_mutex);
return false;
}
SDL_AudioSpec input_desired {};
input_desired.format = AUDIO_F32SYS;
input_desired.channels = 1;
input_desired.samples = 1024;
input_desired.freq = 48000;
SDL_AudioSpec input_obtained {};
g_input_device_id = SDL_OpenAudioDevice(nullptr, SDL_TRUE, &input_desired, &input_obtained, 0);
if (!g_input_device_id)
{
CONS_Alert(CONS_WARNING, "Failed to open input audio device: %s\n", SDL_GetError());
return false;
}
if (input_obtained.freq != 48000 || input_obtained.format != AUDIO_F32SYS || input_obtained.channels != 1)
{
CONS_Alert(CONS_WARNING, "Input audio device has unexpected unusable format: %s\n", SDL_GetError());
return false;
}
SDL_PauseAudioDevice(g_input_device_id, SDL_FALSE);
SDL_CreateThread(microphone_opener, "Microphone Opener", nullptr);
}
else if (g_input_device_id != 0 && !enabled)
{
microphone_thread = nullptr;
SDL_PauseAudioDevice(g_input_device_id, SDL_TRUE);
SDL_ClearQueuedAudio(g_input_device_id);
SDL_CloseAudioDevice(g_input_device_id);
g_input_device_id = 0;
}
SDL_UnlockMutex(microphone_mutex);
return enabled;
}
UINT32 I_SoundInputDequeueSamples(void *data, UINT32 len)
{
SDL_LockMutex(microphone_mutex);
if (!g_input_device_id)
{
SDL_UnlockMutex(microphone_mutex);
return 0;
}
UINT32 ret = SDL_DequeueAudio(g_input_device_id, data, len);
SDL_UnlockMutex(microphone_mutex);
return ret;
}
UINT32 I_SoundInputRemainingSamples(void)
{
SDL_LockMutex(microphone_mutex);
if (!g_input_device_id)
{
SDL_UnlockMutex(microphone_mutex);
return 0;
}
UINT32 avail = SDL_GetQueuedAudioSize(g_input_device_id);
SDL_UnlockMutex(microphone_mutex);
return avail / sizeof(float);
}