WSJT-X/portaudio-v19/test/debug_record.c

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/*
* $Id$
* debug_record.c
* Record input into an array.
* Save array to a file.
* Based on patest_record.c but with various ugly debug hacks thrown in.
*
* Author: Phil Burk http://www.softsynth.com
*
* 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.
*
* 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.
*
* 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 <stdio.h>
#include <stdlib.h>
#include <memory.h>
#include "portaudio.h"
#define SAMPLE_RATE (22050)
#define NUM_SECONDS (10)
#define SLEEP_DUR_MSEC (200)
#define FRAMES_PER_BUFFER (1<<10)
#define NUM_REC_BUFS (0)
#if 1
#define PA_SAMPLE_TYPE paFloat32
typedef float SAMPLE;
#else
#define PA_SAMPLE_TYPE paInt16
typedef short SAMPLE;
#endif
typedef struct
{
long frameIndex; /* Index into sample array. */
long maxFrameIndex;
long samplesPerFrame;
long numSamples;
SAMPLE *recordedSamples;
}
paTestData;
/* This routine will be called by the PortAudio engine when audio is needed.
** It may be 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 recordCallback( void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
PaTimestamp outTime, void *userData )
{
paTestData *data = (paTestData*)userData;
SAMPLE *rptr = (SAMPLE*)inputBuffer;
SAMPLE *wptr = &data->recordedSamples[data->frameIndex * data->samplesPerFrame];
long framesToCalc;
unsigned long i;
int finished;
unsigned long framesLeft = data->maxFrameIndex - data->frameIndex;
(void) outputBuffer; /* Prevent unused variable warnings. */
(void) outTime;
if( framesLeft < framesPerBuffer )
{
framesToCalc = framesLeft;
finished = 1;
}
else
{
framesToCalc = framesPerBuffer;
finished = 0;
}
if( inputBuffer == NULL )
{
for( i=0; i<framesToCalc; i++ )
{
*wptr++ = 0; /* left */
*wptr++ = 0; /* right */
}
}
else
{
for( i=0; i<framesToCalc; i++ )
{
*wptr++ = *rptr++; /* left */
*wptr++ = *rptr++; /* right */
}
}
data->frameIndex += framesToCalc;
return finished;
}
/* This routine will be called by the PortAudio engine when audio is needed.
** It may be 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 playCallback( void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
PaTimestamp outTime, void *userData )
{
paTestData *data = (paTestData*)userData;
SAMPLE *rptr = &data->recordedSamples[data->frameIndex * data->samplesPerFrame];
SAMPLE *wptr = (SAMPLE*)outputBuffer;
unsigned long i;
int finished;
unsigned int framesLeft = data->maxFrameIndex - data->frameIndex;
if( outputBuffer == NULL ) return 0;
(void) inputBuffer; /* Prevent unused variable warnings. */
(void) outTime;
if( framesLeft < framesPerBuffer )
{
/* final buffer... */
for( i=0; i<framesLeft; i++ )
{
*wptr++ = *rptr++; /* left */
*wptr++ = *rptr++; /* right */
}
for( ; i<framesPerBuffer; i++ )
{
*wptr++ = 0; /* left */
*wptr++ = 0; /* right */
}
data->frameIndex += framesLeft;
finished = 1;
}
else
{
for( i=0; i<framesPerBuffer; i++ )
{
*wptr++ = *rptr++; /* left */
*wptr++ = *rptr++; /* right */
}
data->frameIndex += framesPerBuffer;
finished = 0;
}
return finished;
}
/****************************************************************/
PaError TestRecording( paTestData *dataPtr )
{
PortAudioStream *stream;
PaError err;
int i;
/* Record some audio. */
err = Pa_OpenStream(
&stream,
Pa_GetDefaultInputDeviceID(),
dataPtr->samplesPerFrame, /* stereo input */
PA_SAMPLE_TYPE,
NULL,
paNoDevice,
0,
PA_SAMPLE_TYPE,
NULL,
SAMPLE_RATE,
FRAMES_PER_BUFFER, /* frames per buffer */
NUM_REC_BUFS, /* number of buffers, if zero then use default minimum */
paClipOff, /* we won't output out of range samples so don't bother clipping them */
recordCallback,
dataPtr );
if( err != paNoError ) goto error;
err = Pa_StartStream( stream );
if( err != paNoError ) goto error;
printf("Now recording!\n"); fflush(stdout);
for( i=0; i<(NUM_SECONDS*1000/SLEEP_DUR_MSEC); i++ )
{
if( Pa_StreamActive( stream ) <= 0)
{
printf("Stream inactive!\n");
break;
}
if( dataPtr->maxFrameIndex <= dataPtr->frameIndex )
{
printf("Buffer recording complete.\n");
break;
}
Pa_Sleep(100);
printf("index = %d\n", dataPtr->frameIndex ); fflush(stdout);
}
printf("Finished loop. Close stream.\n"); fflush(stdout);
err = Pa_CloseStream( stream );
if( err != paNoError ) goto error;
printf("Done.\n"); fflush(stdout);
{
SAMPLE max = 0;
SAMPLE posVal;
int i;
for( i=0; i<dataPtr->numSamples; i++ )
{
posVal = dataPtr->recordedSamples[i];
if( posVal < 0 ) posVal = -posVal;
if( posVal > max ) max = posVal;
}
printf("Largest recorded sample = %d\n", max );
}
/* Write recorded data to a file. */
#if 0
{
FILE *fid;
fid = fopen("recorded.raw", "wb");
if( fid == NULL )
{
printf("Could not open file.");
}
else
{
fwrite( dataPtr->recordedSamples, dataPtr->samplesPerFrame * sizeof(SAMPLE), totalFrames, fid );
fclose( fid );
printf("Wrote data to 'recorded.raw'\n");
}
}
#endif
error:
return err;
}
/****************************************************************/
PaError TestPlayback( paTestData *dataPtr )
{
PortAudioStream *stream;
PaError err;
int i;
/* Playback recorded data. */
dataPtr->frameIndex = 0;
printf("Begin playback.\n"); fflush(stdout);
err = Pa_OpenStream(
&stream,
paNoDevice,
0, /* NO input */
PA_SAMPLE_TYPE,
NULL,
Pa_GetDefaultOutputDeviceID(),
dataPtr->samplesPerFrame, /* stereo output */
PA_SAMPLE_TYPE,
NULL,
SAMPLE_RATE,
FRAMES_PER_BUFFER, /* frames per buffer */
0, /* number of buffers, if zero then use default minimum */
paClipOff, /* we won't output out of range samples so don't bother clipping them */
playCallback,
dataPtr );
if( err != paNoError ) goto error;
err = Pa_StartStream( stream );
if( err != paNoError ) goto error;
printf("Waiting for playback to finish.\n"); fflush(stdout);
for( i=0; i<(NUM_SECONDS*1000/SLEEP_DUR_MSEC); i++ )
{
Pa_Sleep(100);
printf("index = %d\n", dataPtr->frameIndex );
}
err = Pa_CloseStream( stream );
if( err != paNoError ) goto error;
error:
return err;
}
/*******************************************************************/
int main(void);
int main(void)
{
PaError err;
paTestData data;
long totalFrames;
long numBytes;
long i;
printf("patest_record.c\n"); fflush(stdout);
data.frameIndex = 0;
data.samplesPerFrame = 2;
data.maxFrameIndex = totalFrames = NUM_SECONDS*SAMPLE_RATE;
printf("totalFrames = %d\n", totalFrames ); fflush(stdout);
data.numSamples = totalFrames * data.samplesPerFrame;
numBytes = data.numSamples * sizeof(SAMPLE);
data.recordedSamples = (SAMPLE *) malloc( numBytes );
if( data.recordedSamples == NULL )
{
printf("Could not allocate record array.\n");
exit(1);
}
for( i=0; i<data.numSamples; i++ ) data.recordedSamples[i] = 0;
err = Pa_Initialize();
if( err != paNoError ) goto error;
for( i=0; i<2; i++ )
{
err = TestRecording( &data );
if( err != paNoError ) goto error;
err = TestPlayback( &data );
if( err != paNoError ) goto error;
}
free( data.recordedSamples );
Pa_Terminate();
return 0;
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 ) );
if( err == paHostError )
{
fprintf( stderr, "Host Error number: %d\n", Pa_GetHostError() );
}
return -1;
}