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This commit is contained in:
Gerolf Ziegenhain 2016-10-03 16:13:59 +02:00
parent 6d8fee68f4
commit b8603fd9d0
2 changed files with 23 additions and 164 deletions
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6
src/Makefile
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@ -1,7 +1,7 @@
SRC = irmc.c cwprotocol.c SRC = irmc.c cwprotocol.c beep.c
OBJ = ${SRC:.c=.o} OBJ = ${SRC:.c=.o}
LDFLAGS = -L/usr/local/lib -L/opt/local/lib -lportaudio -lpthread -lm -lmorse LDFLAGS = -lportaudio -lpthread -lm
CFLAGS = -I/usr/local/include -I/opt/local/include -Wall CFLAGS = -Wall
INSTALLDIR = ${HOME}/bin INSTALLDIR = ${HOME}/bin
all: options irmc all: options irmc

181
src/beep.h
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@ -1,46 +1,3 @@
/** @file paex_sine.c
@ingroup examples_src
@brief Play a sine wave for several seconds.
@author Ross Bencina <rossb@audiomulch.com>
@author Phil Burk <philburk@softsynth.com>
*/
/*
* $Id$
*
* 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.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
#include <stdio.h> #include <stdio.h>
#include <math.h> #include <math.h>
#include "portaudio.h" #include "portaudio.h"
@ -53,126 +10,28 @@
#define M_PI (3.14159265) #define M_PI (3.14159265)
#endif #endif
#define TABLE_SIZE (200)
typedef struct typedef struct
{ {
float sine[TABLE_SIZE]; uint32_t total_count;
int left_phase; uint32_t up_count;
int right_phase;
char message[20]; uint32_t counter;
} uint32_t prev_freq;
paTestData; uint32_t freq;
} paTestData;
/* This routine will be called by the PortAudio engine when audio is needed.
** It may called at interrupt level on some machines so don't do anything
** that could mess up the system like calling malloc() or free().
*/
static int patestCallback( const void *inputBuffer, void *outputBuffer, static int patestCallback( const void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer, unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo* timeInfo, const PaStreamCallbackTimeInfo* timeInfo,
PaStreamCallbackFlags statusFlags, PaStreamCallbackFlags statusFlags,
void *userData ) void *userData );
{ void buzzer_set_freq(int frequency);
paTestData *data = (paTestData*)userData; void buzzer_beep(int frequency, int msecs);
float *out = (float*)outputBuffer; int buzzer_start(void);
unsigned long i; int buzzer_stop();
void msleep(int d);
int beep_test(void);
(void) timeInfo; /* Prevent unused variable warnings. */ // compatibility to old interface
(void) statusFlags; int beep(double freq_hz, double duration_sec);
(void) inputBuffer; int beep_init();
for( i=0; i<framesPerBuffer; i++ )
{
*out++ = data->sine[data->left_phase]; /* left */
*out++ = data->sine[data->right_phase]; /* right */
data->left_phase += 1;
if( data->left_phase >= TABLE_SIZE ) data->left_phase -= TABLE_SIZE;
data->right_phase += 3; /* higher pitch so we can distinguish left and right. */
if( data->right_phase >= TABLE_SIZE ) data->right_phase -= TABLE_SIZE;
}
return paContinue;
}
/*
* This routine is called by portaudio when playback is done.
*/
static void StreamFinished( void* userData )
{
paTestData *data = (paTestData *) userData;
printf( "Stream Completed: %s\n", data->message );
}
/*******************************************************************/
void beep_init(void);
int beep(double freq_hz, double duration_sec)
{
PaStreamParameters outputParameters;
PaStream *stream;
PaError err;
paTestData data;
int i;
printf("PortAudio Test: output sine wave. SR = %d, BufSize = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER);
/* initialise sinusoidal wavetable */
for( i=0; i<TABLE_SIZE; i++ )
{
data.sine[i] = (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. );
}
data.left_phase = data.right_phase = 0;
err = Pa_Initialize();
if( err != paNoError ) goto error;
outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
if (outputParameters.device == paNoDevice) {
fprintf(stderr,"Error: No default output device.\n");
goto error;
}
outputParameters.channelCount = 2; /* stereo output */
outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
outputParameters.hostApiSpecificStreamInfo = NULL;
err = Pa_OpenStream(
&stream,
NULL, /* no input */
&outputParameters,
SAMPLE_RATE,
FRAMES_PER_BUFFER,
paClipOff, /* we won't output out of range samples so don't bother clipping them */
patestCallback,
&data );
if( err != paNoError ) goto error;
sprintf( data.message, "No Message" );
err = Pa_SetStreamFinishedCallback( stream, &StreamFinished );
if( err != paNoError ) goto error;
err = Pa_StartStream( stream );
if( err != paNoError ) goto error;
printf("Play for %d seconds.\n", NUM_SECONDS );
Pa_Sleep( duration_sec * 1000 );
err = Pa_StopStream( stream );
if( err != paNoError ) goto error;
err = Pa_CloseStream( stream );
if( err != paNoError ) goto error;
Pa_Terminate();
printf("Test finished.\n");
return err;
error:
Pa_Terminate();
fprintf( stderr, "An error occured while using the portaudio stream\n" );
fprintf( stderr, "Error number: %d\n", err );
fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
return err;
}