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https://github.com/Tha14/toxic.git
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372 lines
11 KiB
C
372 lines
11 KiB
C
#include "toxic_windows.h"
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#include "audio_call.h"
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#include "line_info.h"
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#include <AL/al.h>
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#include <AL/alc.h>
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#include <string.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <tox/toxav.h>
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#define openal_bufs 5
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#define sample_rate 48000
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#define inline__ inline __attribute__((always_inline))
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#define frame_size (av_DefaultSettings.audio_sample_rate * av_DefaultSettings.audio_frame_duration / 1000)
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typedef struct _Device {
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ALCdevice *dhndl; /* Handle of device selected/opened */
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ALCcontext *ctx; /* Device context */
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DataHandleCallback cb; /* Use this to handle data from input device usually */
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void* cb_data; /* Data to be passed to callback */
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uint32_t source, buffers[openal_bufs]; /* Playback source/buffers */
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size_t ref_count;
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int32_t selection;
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_Bool enable_VAD;
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} Device;
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const char *ddevice_names[2]; /* Default device */
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const char *devices_names[2][MAX_DEVICES]; /* Container of available devices */
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static int size[2]; /* Size of above containers */
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Device *running[2][MAX_DEVICES]={NULL}; /* Running devices */
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uint32_t primary_device[2] = {0}; /* Primary device */
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static ToxAv* av = NULL;
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/* q_mutex */
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#define lock pthread_mutex_lock(&mutex)
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#define unlock pthread_mutex_unlock(&mutex)
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pthread_mutex_t mutex;
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_Bool thread_running = _True,
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thread_paused = _True; /* Thread control */
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void* thread_poll(void*);
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/* Meet devices */
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DeviceError init_devices(ToxAv* av_)
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{
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const char *stringed_device_list;
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size[input] = 0;
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if ( (stringed_device_list = alcGetString(NULL, ALC_CAPTURE_DEVICE_SPECIFIER)) ) {
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ddevice_names[input] = alcGetString(NULL, ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER);
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for ( ; *stringed_device_list && size[input] < MAX_DEVICES; ++size[input] ) {
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devices_names[input][size[input]] = stringed_device_list;
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stringed_device_list += strlen( stringed_device_list ) + 1;
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}
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}
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size[output] = 0;
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if ( (stringed_device_list = alcGetString(NULL, ALC_DEVICE_SPECIFIER)) ) {
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ddevice_names[output] = alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
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for ( ; *stringed_device_list && size[output] < MAX_DEVICES; ++size[output] ) {
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devices_names[output][size[output]] = stringed_device_list;
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stringed_device_list += strlen( stringed_device_list ) + 1;
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}
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}
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// Start poll thread
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pthread_mutex_init(&mutex, NULL);
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pthread_t thread_id;
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if ( pthread_create(&thread_id, NULL, thread_poll, NULL) != 0 || pthread_detach(thread_id) != 0)
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return de_InternalError;
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av = av_;
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return ae_None;
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}
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DeviceError terminate_devices()
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{
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/* Cleanup if needed */
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thread_running = false;
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usleep(20000);
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pthread_mutex_destroy(&mutex);
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return ae_None;
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}
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DeviceError set_primary_device(DeviceType type, int32_t selection)
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{
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if (size[type] <= selection || selection < 0) return de_InvalidSelection;
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primary_device[type] = selection;
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return de_None;
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}
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DeviceError open_primary_device(DeviceType type, uint32_t* device_idx)
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{
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return open_device(type, primary_device[type], device_idx);
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}
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// TODO: generate buffers separately
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DeviceError open_device(DeviceType type, int32_t selection, uint32_t* device_idx)
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{
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if (size[type] <= selection || selection < 0) return de_InvalidSelection;
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lock;
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uint32_t i;
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for (i = 0; i < MAX_DEVICES && running[type][i] != NULL; i ++);
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if (i == size[type]) { unlock; return de_AllDevicesBusy; }
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else *device_idx = i;
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Device* device = running[type][*device_idx] = calloc(1, sizeof(Device));;
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device->selection = selection;
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for (i = 0; i < *device_idx; i ++) { /* Check if any previous has the same selection */
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if ( running[type][i]->selection == selection ) {
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device->dhndl = running[type][i]->dhndl;
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if (type == output) {
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device->ctx = running[type][i]->ctx;
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memcpy(device->buffers, running[type][i]->buffers, sizeof(running[type][i]->buffers));
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device->source = running[type][i]->source;
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}
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device->ref_count++;
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unlock;
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return de_None;
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}
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}
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if (type == input) {
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device->dhndl = alcCaptureOpenDevice(devices_names[type][selection],
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av_DefaultSettings.audio_sample_rate, AL_FORMAT_MONO16, frame_size * 4);
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}
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else {
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device->dhndl = alcOpenDevice(devices_names[type][selection]);
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if ( !device->dhndl ) {
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free(device);
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running[type][*device_idx] = NULL;
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unlock;
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return de_FailedStart;
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}
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device->ctx = alcCreateContext(device->dhndl, NULL);
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alcMakeContextCurrent(device->ctx);
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alGenBuffers(openal_bufs, device->buffers);
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alGenSources((uint32_t)1, &device->source);
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alSourcei(device->source, AL_LOOPING, AL_FALSE);
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uint16_t zeros[frame_size];
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memset(zeros, 0, frame_size);
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for ( i =0; i < openal_bufs; ++i) {
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alBufferData(device->buffers[i], AL_FORMAT_MONO16, zeros, frame_size, sample_rate);
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}
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alSourceQueueBuffers(device->source, openal_bufs, device->buffers);
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alSourcePlay(device->source);
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}
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if (alcGetError(device->dhndl) != AL_NO_ERROR) {
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free(device);
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running[type][*device_idx] = NULL;
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unlock;
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return de_FailedStart;
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}
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if (type == input) {
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alcCaptureStart(device->dhndl);
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thread_paused = _False;
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}
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unlock;
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return de_None;
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}
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DeviceError close_device(DeviceType type, uint32_t device_idx)
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{
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if (device_idx >= MAX_DEVICES) return de_InvalidSelection;
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lock;
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Device* device = running[type][device_idx];
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if (!device) {
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unlock;
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return de_DeviceNotActive;
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}
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if ( !(device->ref_count--) ) {
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running[type][device_idx] = NULL;
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unlock;
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DeviceError rc = de_None;
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if (type == input) {
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if ( !alcCaptureCloseDevice(device->dhndl) ) rc = de_AlError;
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}
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else {
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if (alcGetCurrentContext() != device->ctx) alcMakeContextCurrent(device->ctx);
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alDeleteSources(1, &device->source);
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alDeleteBuffers(openal_bufs, device->buffers);
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if ( !alcCloseDevice(device->dhndl) ) rc = de_AlError;
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alcMakeContextCurrent(NULL);
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if ( device->ctx ) alcDestroyContext(device->ctx);
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}
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free(device);
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return rc;
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}
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return de_None;
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}
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DeviceError register_device_callback(uint32_t device_idx, DataHandleCallback callback, void* data, _Bool enable_VAD)
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{
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if (size[input] <= device_idx || !running[input][device_idx] || running[input][device_idx]->dhndl == NULL)
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return de_InvalidSelection;
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lock;
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running[input][device_idx]->cb = callback;
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running[input][device_idx]->cb_data = data;
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running[input][device_idx]->enable_VAD = enable_VAD;
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unlock;
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return de_None;
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}
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inline__ DeviceError playback_device_ready(uint32_t device_idx)
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{
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if (device_idx >= MAX_DEVICES) return de_InvalidSelection;
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Device* device = running[output][device_idx];
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if (!device) return de_DeviceNotActive;
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int32_t ready;
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alGetSourcei(device->source, AL_BUFFERS_PROCESSED, &ready);
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return ready <= 0 ? de_Busy : de_None;
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}
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/* TODO: thread safety? */
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inline__ DeviceError write_out(uint32_t device_idx, int16_t* data, uint32_t lenght, uint8_t channels)
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{
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if (device_idx >= MAX_DEVICES) return de_InvalidSelection;
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Device* device = running[output][device_idx];
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if (!device) return de_DeviceNotActive;
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alcMakeContextCurrent(device->ctx); /* TODO: Check for error */
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uint32_t buffer;
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int32_t ready;
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alSourceUnqueueBuffers(device->source, 1, &buffer);
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alBufferData(buffer, AL_FORMAT_MONO16, data, lenght * 2 * 1 /*channels*/, sample_rate); // TODO: Frequency must be set dynamically
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if (alGetError() != AL_NO_ERROR) {
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fprintf(stderr, "Error setting buffer %d\n");
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return de_BufferError;
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}
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alSourceQueueBuffers(device->source, 1, &buffer);
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if (alGetError() != AL_NO_ERROR) {
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fprintf(stderr, "Error: could not buffer audio\n");
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return de_BufferError;
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}
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alGetSourcei(device->source, AL_SOURCE_STATE, &ready);
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if (ready != AL_PLAYING) {
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alSourcePlay(device->source);
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return de_None;
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}
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return de_Busy;
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}
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void* thread_poll (void* arg) // TODO: maybe use thread for every input source
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{
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/*
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* NOTE: We only need to poll input devices for data.
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*/
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(void)arg;
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uint32_t i;
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int32_t sample = 0;
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int f_size = frame_size;
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while (thread_running)
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{
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if (thread_paused) usleep(10000); /* Wait for unpause. */
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else
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{
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for (i = 0; i < size[input]; i ++)
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{
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lock;
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if (running[input][i] != NULL)
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// do
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{
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alcGetIntegerv(running[input][i]->dhndl, ALC_CAPTURE_SAMPLES, sizeof(int32_t), &sample);
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if (sample < f_size) {
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unlock;
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continue;
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}
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int16_t frame[4096];
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alcCaptureSamples(running[input][i]->dhndl, frame, f_size);
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if ( running[input][i]->enable_VAD && !toxav_has_activity(frame, f_size, 88.5)) { unlock; continue; } /* Skip if no voice activity */
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if ( running[input][i]->cb ) running[input][i]->cb(frame, f_size, running[input][i]->cb_data);
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}
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unlock;
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// while (_True);
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}
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// usleep(10);
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}
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}
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pthread_exit(NULL);
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}
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void print_devices(ToxWindow* self, DeviceType type)
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{
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int i = 0;
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for ( ; i < size[type]; i ++) {
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uint8_t msg[MAX_STR_SIZE];
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snprintf(msg, sizeof(msg), "%d: %s", i, devices_names[type][i]);
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line_info_add(self, NULL, NULL, NULL, msg, SYS_MSG, 0, 0);
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}
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return;
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}
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DeviceError selection_valid(DeviceType type, int32_t selection)
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{
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return (size[type] <= selection || selection < 0) ? de_InvalidSelection : de_None;
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}
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void* get_device_callback_data(uint32_t device_idx)
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{
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if (size[input] <= device_idx || !running[input][device_idx] || running[input][device_idx]->dhndl == NULL)
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return NULL;
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return running[input][device_idx]->cb_data;
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} |