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Missed device.*

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mannol 2014-06-21 02:04:25 +02:00
parent 29b283c176
commit e06f0ffb7e
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#include "toxic_windows.h"
#include "audio_call.h"
#include "line_info.h"
#include <AL/al.h>
#include <AL/alc.h>
#include <string.h>
#include <pthread.h>
#include <unistd.h>
#include <stdlib.h>
#include <assert.h>
#include <tox/toxav.h>
#define openal_bufs 5
#define sample_rate 48000
#define inline__ inline __attribute__((always_inline))
#define frame_size (av_DefaultSettings.audio_sample_rate * av_DefaultSettings.audio_frame_duration / 1000)
typedef struct _Device {
ALCdevice *dhndl; /* Handle of device selected/opened */
ALCcontext *ctx; /* Device context */
DataHandleCallback cb; /* Use this to handle data from input device usually */
void* cb_data; /* Data to be passed to callback */
uint32_t source, buffers[openal_bufs]; /* Playback source/buffers */
size_t ref_count;
int32_t selection;
_Bool enable_VAD;
} Device;
const char *ddevice_names[2]; /* Default device */
const char *devices_names[2][MAX_DEVICES]; /* Container of available devices */
static int size[2]; /* Size of above containers */
Device *running[2][MAX_DEVICES]={NULL}; /* Running devices */
uint32_t primary_device[2] = {0}; /* Primary device */
static ToxAv* av = NULL;
/* q_mutex */
#define lock pthread_mutex_lock(&mutex)
#define unlock pthread_mutex_unlock(&mutex)
pthread_mutex_t mutex;
_Bool thread_running = _True,
thread_paused = _True; /* Thread control */
void* thread_poll(void*);
/* Meet devices */
DeviceError init_devices(ToxAv* av_)
{
const char *stringed_device_list;
size[input] = 0;
if ( (stringed_device_list = alcGetString(NULL, ALC_CAPTURE_DEVICE_SPECIFIER)) ) {
ddevice_names[input] = alcGetString(NULL, ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER);
for ( ; *stringed_device_list && size[input] < MAX_DEVICES; ++size[input] ) {
devices_names[input][size[input]] = stringed_device_list;
stringed_device_list += strlen( stringed_device_list ) + 1;
}
}
size[output] = 0;
if ( (stringed_device_list = alcGetString(NULL, ALC_DEVICE_SPECIFIER)) ) {
ddevice_names[output] = alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
for ( ; *stringed_device_list && size[output] < MAX_DEVICES; ++size[output] ) {
devices_names[output][size[output]] = stringed_device_list;
stringed_device_list += strlen( stringed_device_list ) + 1;
}
}
// Start poll thread
pthread_mutex_init(&mutex, NULL);
pthread_t thread_id;
if ( pthread_create(&thread_id, NULL, thread_poll, NULL) != 0 || pthread_detach(thread_id) != 0)
return de_InternalError;
av = av_;
return ae_None;
}
DeviceError terminate_devices()
{
/* Cleanup if needed */
thread_running = false;
usleep(20000);
pthread_mutex_destroy(&mutex);
return ae_None;
}
DeviceError set_primary_device(DeviceType type, int32_t selection)
{
if (size[type] <= selection || selection < 0) return de_InvalidSelection;
primary_device[type] = selection;
return de_None;
}
DeviceError open_primary_device(DeviceType type, uint32_t* device_idx)
{
return open_device(type, primary_device[type], device_idx);
}
// TODO: generate buffers separately
DeviceError open_device(DeviceType type, int32_t selection, uint32_t* device_idx)
{
if (size[type] <= selection || selection < 0) return de_InvalidSelection;
lock;
uint32_t i;
for (i = 0; i < MAX_DEVICES && running[type][i] != NULL; i ++);
if (i == size[type]) { unlock; return de_AllDevicesBusy; }
else *device_idx = i;
Device* device = running[type][*device_idx] = calloc(1, sizeof(Device));;
device->selection = selection;
for (i = 0; i < *device_idx; i ++) { /* Check if any previous has the same selection */
if ( running[type][i]->selection == selection ) {
device->dhndl = running[type][i]->dhndl;
if (type == output) {
device->ctx = running[type][i]->ctx;
memcpy(device->buffers, running[type][i]->buffers, sizeof(running[type][i]->buffers));
device->source = running[type][i]->source;
}
device->ref_count++;
unlock;
return de_None;
}
}
if (type == input) {
device->dhndl = alcCaptureOpenDevice(devices_names[type][selection],
av_DefaultSettings.audio_sample_rate, AL_FORMAT_MONO16, frame_size * 4);
}
else {
device->dhndl = alcOpenDevice(devices_names[type][selection]);
if ( !device->dhndl ) {
free(device);
running[type][*device_idx] = NULL;
unlock;
return de_FailedStart;
}
device->ctx = alcCreateContext(device->dhndl, NULL);
alcMakeContextCurrent(device->ctx);
alGenBuffers(openal_bufs, device->buffers);
alGenSources((uint32_t)1, &device->source);
alSourcei(device->source, AL_LOOPING, AL_FALSE);
uint16_t zeros[frame_size];
memset(zeros, 0, frame_size);
for ( i =0; i < openal_bufs; ++i) {
alBufferData(device->buffers[i], AL_FORMAT_MONO16, zeros, frame_size, sample_rate);
}
alSourceQueueBuffers(device->source, openal_bufs, device->buffers);
alSourcePlay(device->source);
}
if (alcGetError(device->dhndl) != AL_NO_ERROR) {
free(device);
running[type][*device_idx] = NULL;
unlock;
return de_FailedStart;
}
if (type == input) {
alcCaptureStart(device->dhndl);
thread_paused = _False;
}
unlock;
return de_None;
}
DeviceError close_device(DeviceType type, uint32_t device_idx)
{
if (device_idx >= MAX_DEVICES) return de_InvalidSelection;
lock;
Device* device = running[type][device_idx];
if (!device) {
unlock;
return de_DeviceNotActive;
}
if ( !(device->ref_count--) ) {
running[type][device_idx] = NULL;
unlock;
DeviceError rc = de_None;
if (type == input) {
if ( !alcCaptureCloseDevice(device->dhndl) ) rc = de_AlError;
}
else {
if (alcGetCurrentContext() != device->ctx) alcMakeContextCurrent(device->ctx);
alDeleteSources(1, &device->source);
alDeleteBuffers(openal_bufs, device->buffers);
if ( !alcCloseDevice(device->dhndl) ) rc = de_AlError;
alcMakeContextCurrent(NULL);
if ( device->ctx ) alcDestroyContext(device->ctx);
}
free(device);
return rc;
}
return de_None;
}
DeviceError register_device_callback(uint32_t device_idx, DataHandleCallback callback, void* data, _Bool enable_VAD)
{
if (size[input] <= device_idx || !running[input][device_idx] || running[input][device_idx]->dhndl == NULL)
return de_InvalidSelection;
lock;
running[input][device_idx]->cb = callback;
running[input][device_idx]->cb_data = data;
running[input][device_idx]->enable_VAD = enable_VAD;
unlock;
return de_None;
}
inline__ DeviceError playback_device_ready(uint32_t device_idx)
{
if (device_idx >= MAX_DEVICES) return de_InvalidSelection;
Device* device = running[output][device_idx];
if (!device) return de_DeviceNotActive;
int32_t ready;
alGetSourcei(device->source, AL_BUFFERS_PROCESSED, &ready);
return ready <= 0 ? de_Busy : de_None;
}
/* TODO: thread safety? */
inline__ DeviceError write_out(uint32_t device_idx, int16_t* data, uint32_t lenght, uint8_t channels)
{
if (device_idx >= MAX_DEVICES) return de_InvalidSelection;
Device* device = running[output][device_idx];
if (!device) return de_DeviceNotActive;
alcMakeContextCurrent(device->ctx); /* TODO: Check for error */
uint32_t buffer;
int32_t ready;
alSourceUnqueueBuffers(device->source, 1, &buffer);
alBufferData(buffer, AL_FORMAT_MONO16, data, lenght * 2 * 1 /*channels*/, sample_rate); // TODO: Frequency must be set dynamically
if (alGetError() != AL_NO_ERROR) {
fprintf(stderr, "Error setting buffer %d\n");
return de_BufferError;
}
alSourceQueueBuffers(device->source, 1, &buffer);
if (alGetError() != AL_NO_ERROR) {
fprintf(stderr, "Error: could not buffer audio\n");
return de_BufferError;
}
alGetSourcei(device->source, AL_SOURCE_STATE, &ready);
if (ready != AL_PLAYING) {
alSourcePlay(device->source);
return de_None;
}
return de_Busy;
}
void* thread_poll (void* arg) // TODO: maybe use thread for every input source
{
/*
* NOTE: We only need to poll input devices for data.
*/
(void)arg;
uint32_t i;
int32_t sample = 0;
int f_size = frame_size;
while (thread_running)
{
if (thread_paused) usleep(10000); /* Wait for unpause. */
else
{
for (i = 0; i < size[input]; i ++)
{
lock;
if (running[input][i] != NULL)
// do
{
alcGetIntegerv(running[input][i]->dhndl, ALC_CAPTURE_SAMPLES, sizeof(int32_t), &sample);
if (sample < f_size) {
unlock;
continue;
}
int16_t frame[4096];
alcCaptureSamples(running[input][i]->dhndl, frame, f_size);
if ( running[input][i]->enable_VAD && !toxav_has_activity(frame, f_size, 88.5)) { unlock; continue; } /* Skip if no voice activity */
if ( running[input][i]->cb ) running[input][i]->cb(frame, f_size, running[input][i]->cb_data);
}
unlock;
// while (_True);
}
// usleep(10);
}
}
pthread_exit(NULL);
}
void print_devices(ToxWindow* self, DeviceType type)
{
int i = 0;
for ( ; i < size[type]; i ++) {
uint8_t msg[MAX_STR_SIZE];
snprintf(msg, sizeof(msg), "%d: %s", i, devices_names[type][i]);
line_info_add(self, NULL, NULL, NULL, msg, SYS_MSG, 0, 0);
}
return;
}
DeviceError selection_valid(DeviceType type, int32_t selection)
{
return (size[type] <= selection || selection < 0) ? de_InvalidSelection : de_None;
}
void* get_device_callback_data(uint32_t device_idx)
{
if (size[input] <= device_idx || !running[input][device_idx] || running[input][device_idx]->dhndl == NULL)
return NULL;
return running[input][device_idx]->cb_data;
}

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/*
* Toxic -- Tox Curses Client
*/
/*
* You can have multiple sources (Input devices) but only one output device.
* Pass buffers to output device via write();
* Read from running input device(s) via select()/callback combo.
*/
#ifndef _device_h
#define _device_h
#define MAX_DEVICES 32
#include <inttypes.h>
#include "toxic_windows.h"
#define _True 1
#define _False 0
typedef enum DeviceType {
input,
output,
} DeviceType;
typedef enum DeviceError {
de_None,
de_InternalError = -1,
de_InvalidSelection = -2,
de_FailedStart = -3,
de_Busy = -4,
de_AllDevicesBusy = -5,
de_DeviceNotActive = -6,
de_BufferError = -7,
de_AlError = -8,
} DeviceError;
typedef void (*DataHandleCallback) (const int16_t*, uint32_t size, void* data);
DeviceError init_devices(ToxAv* av);
DeviceError terminate_devices();
/* Callback handles ready data from INPUT device */
DeviceError register_device_callback(uint32_t device_idx, DataHandleCallback callback, void* data, _Bool enable_VAD);
void* get_device_callback_data(uint32_t device_idx);
DeviceError set_primary_device(DeviceType type, int32_t selection);
DeviceError open_primary_device(DeviceType type, uint32_t* device_idx);
/* Start device */
DeviceError open_device(DeviceType type, int32_t selection, uint32_t* device_idx);
/* Stop device */
DeviceError close_device(DeviceType type, uint32_t device_idx);
DeviceError playback_device_ready(uint32_t device_idx);
/* Write data to device */
DeviceError write_out(uint32_t device_idx, int16_t* data, uint32_t lenght, uint8_t channels);
void print_devices(ToxWindow* self, DeviceType type);
DeviceError selection_valid(DeviceType type, int32_t selection);
#endif /* _device_h */