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| /**
* @file FluxControl
*
* @version 1.00
* @date 26/06/2017
* @author Martin Baty
* @copyright
*
* This program uses the PortAudio Portable Audio Library.
* For more information see: http://www.portaudio.com
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "portaudio.h"
#include "FluxControl.h"
#include "Client.h"
#include <pthread.h>
#define SAMPLE_RATE (8000)
#define PA_SAMPLE_TYPE paFloat32
//#define FRAMES_PER_BUFFER (64)
#define FRAMES_PER_BUFFER (8)
static SAMPLE * myOut;
Msg msg;
static SAMPLE audioOutputFlux[8];
static int gNumNoInputs = 0;
static int firstUse = 1;
static int trueCallback = 0;
static pthread_t fluxThread;
static pthread_cond_t conditionPlay = PTHREAD_COND_INITIALIZER;
static pthread_mutex_t mutexPlay = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t conditionRec = PTHREAD_COND_INITIALIZER;
static pthread_mutex_t mutexRec = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t mutexLock = PTHREAD_MUTEX_INITIALIZER;
int a = 0;
static void parametersInitializer(FluxControl * this);
static int fuzzCallback(const void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo* timeInfo,
PaStreamCallbackFlags statusFlags,
void *userData);
static void * startStream(void * param);
/* This is the structure of the object FluxControl */
struct FluxControl_t
{
PaStreamParameters inputParameters, outputParameters;
PaStream *stream;
Brain * brain;
};
FluxControl * FluxControlInit(Brain * brain)
{
assert(brain != NULL);
PaError err;
//Creation and memory allocation of the object FluxControl
FluxControl *this;
this = (FluxControl*)malloc(sizeof(FluxControl));
assert(this != NULL);
this->brain = brain;
trueCallback = 0;
for (int i = 0; i<8; i++)
{
audioOutputFlux[i] = 0;
}
err = Pa_Initialize();
assert(err == paNoError);
return this;
}
void FluxControlFree(FluxControl * this)
{
assert(this != NULL);
free(this);
}
void FluxControlStart(FluxControl * this)
{
assert(this != NULL);
PaError err;
parametersInitializer(this);
err = Pa_OpenStream(
&(this->stream),
&(this->inputParameters),
&(this->outputParameters),
SAMPLE_RATE,
FRAMES_PER_BUFFER,
0, /* paClipOff, */ /* we won't output out of range samples so don't bother clipping them */
fuzzCallback,
NULL );
assert(err == paNoError);
//printf("FIRST DEVICE = %d \n", firstDevice);
pthread_create (&fluxThread, NULL, &startStream, this);
}
static void * startStream(void * param)
{
FluxControl *this = (FluxControl*)param;
PaError err;
err = Pa_StartStream(this->stream);
char * myError = (char*)Pa_GetErrorText(err);
printf("myError : %s \n", myError);
perror("START STREAM");
assert(err == paNoError);
return NULL;
}
void FluxControlStop(FluxControl * this)
{
assert(this != NULL);
pthread_cond_broadcast(&conditionPlay);
PaError err;
err = Pa_CloseStream(this->stream);
assert(err == paNoError);
printf("Finished. gNumNoInputs = %d\n", gNumNoInputs);
Pa_Terminate();
pthread_join(fluxThread, NULL);
}
void FluxControlSetAudioOutput(SAMPLE * outputAudio)
{
//pthread_mutex_lock(&mutexLock);
// puts("YOOOOOO");
pthread_cond_broadcast(&conditionPlay);
for (int i = 0 ; i<8; i++)
{
// printf("PLAYED = %f \n", msg.inputAudio[i]);
*myOut++ = outputAudio[i];
*myOut++ = outputAudio[i];
//audioOutputFlux[i] = outputAudio[i];
//trueCallback=1;
}
//pthread_cond_broadcast(&conditionRec);
//pthread_mutex_unlock(&mutexLock);
}
static void parametersInitializer(FluxControl * this)
{
//INPUT
this->inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
perror("INPUT PARAMETER ERROR");
assert(this->inputParameters.device != paNoDevice);
this->inputParameters.channelCount = 2; /* stereo input */
this->inputParameters.sampleFormat = PA_SAMPLE_TYPE;
this->inputParameters.suggestedLatency = Pa_GetDeviceInfo((this->inputParameters).device)->defaultLowInputLatency;
this->inputParameters.hostApiSpecificStreamInfo = NULL;
////////////////////////////////////////////////////////////////////////////////////////////////////////////
//OUTPUT
this->outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
perror("OUTPUT PARAMETER ERROR");
assert(this->inputParameters.device != paNoDevice);
this->outputParameters.channelCount = 2; /* stereo output */
this->outputParameters.sampleFormat = PA_SAMPLE_TYPE;
this->outputParameters.suggestedLatency = Pa_GetDeviceInfo((this->outputParameters).device)->defaultLowOutputLatency;
this->outputParameters.hostApiSpecificStreamInfo = NULL;
}
static int fuzzCallback(const void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo* timeInfo,
PaStreamCallbackFlags statusFlags,
void *userData)
{
//pthread_mutex_lock(&mutexLock);
SAMPLE *in = (SAMPLE*)inputBuffer;
(void) timeInfo; /* Prevent unused variable warnings. */
(void) statusFlags;
(void) userData;
SAMPLE *out = (SAMPLE*)outputBuffer;
myOut = out;
//pthread_mutex_lock(&mutexPlay);
//pthread_cond_wait(&conditionPlay, &mutexPlay);
//pthread_mutex_unlock(&mutexPlay);
if(inputBuffer == NULL)
{
for(int i=0; i<framesPerBuffer; i++)
{
msg.inputAudio[i] = 0; /* left - silent */
}
gNumNoInputs += 1;
}
else
{
for(int i=0; i<framesPerBuffer; i++)
{
//Remplissage du tableau msg.inputAudio[] de taille 8 (FRAMES_PER_BUFFER)
msg.inputAudio[i] = *in++;
*in++;
//*out++ = *in++;
//*out++ = *in++;
}
}
//Envoi du buffer contenant 8 frames
sendBroadcast();
return paContinue;
}
void setCondition()
{
pthread_cond_broadcast(&conditionPlay);
} |
