--- /dev/null
+# Makefile for Portaudio test programs
+# Requires Portaudio V19
+
+CFLAGS = -g -Wall -I../src
+LIBS = -lm -lportaudio -pthread
+SRC = ../src/fdmdv.c ../src/kiss_fft.c
+
+all: pa_rec pa_play pa_recplay
+
+pa_rec: Makefile pa_rec.c $(SRC)
+ gcc $(CFLAGS) pa_rec.c $(SRC) -o pa_rec $(LIBS)
+
+pa_play: Makefile pa_play.c $(SRC)
+ gcc $(CFLAGS) pa_play.c $(SRC) -o pa_play $(LIBS)
+
+pa_recplay: Makefile pa_recplay.c $(SRC)
+ gcc $(CFLAGS) pa_recplay.c $(SRC) -o pa_recplay $(LIBS)
+
+clean:
+ rm -f pa_rec pa_play pa_recplay
--- /dev/null
+/*
+ pa_play.c
+ David Rowe
+ July 8 2012
+
+ Converts samples from a 16 bit short 8000 Hz rawfile to 480000Hz
+ sample rate and plays them using the default sound device. Used as
+ an intermediate step in Portaudio integration.
+
+ Modified from paex_record.c Portaudio example. Original author
+ author Phil Burk http://www.softsynth.com
+*/
+
+/*
+ * $Id: paex_record.c 1752 2011-09-08 03:21:55Z philburk $
+ *
+ * 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 <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "portaudio.h"
+#include "fdmdv.h"
+
+#define SAMPLE_RATE 48000 /* 48 kHz sampling rate rec. as we
+ can trust accuracy of sound
+ card */
+#define N8 160 /* processing buffer size at 8 kHz */
+#define N48 (N8*FDMDV_OS) /* processing buffer size at 48 kHz */
+#define MEM8 (FDMDV_OS_TAPS/FDMDV_OS)
+#define NUM_CHANNELS 2 /* I think most sound cards prefer
+ stereo, we will convert to mono
+ as we sample */
+
+/* state information passed to call back */
+
+typedef struct {
+ FILE *fin;
+ float in8k[MEM8 + N8];
+} paTestData;
+
+
+/*
+ This routine will be called by the PortAudio engine when audio is
+ required. 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( const void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ const PaStreamCallbackTimeInfo* timeInfo,
+ PaStreamCallbackFlags statusFlags,
+ void *userData )
+{
+ paTestData *data = (paTestData*)userData;
+ FILE *fin = data->fin;
+ int i, nread;
+ int finished;
+ short *wptr = (short*)outputBuffer;
+ float *in8k = data->in8k;
+ float out48k[N48];
+ short out48k_short[N48];
+ short in8k_short[N8];
+
+ (void) outputBuffer; /* Prevent unused variable warnings. */
+ (void) timeInfo;
+ (void) statusFlags;
+ (void) userData;
+
+ /* note Portaudio docs recs. against making systems calls like
+ fwrite() in this callback but seems to work OK */
+
+ nread = fread(in8k_short, sizeof(short), N8, fin);
+ if (nread == N8)
+ finished = paContinue;
+ else
+ finished = paComplete;
+
+ for(i=0; i<N8; i++)
+ in8k[MEM8+i] = in8k_short[i];
+
+ /* upsample and update filter memory */
+
+ fdmdv_8_to_48(out48k, &in8k[MEM8], N8);
+ for(i=0; i<MEM8; i++)
+ in8k[i] = in8k[i+N8];
+
+ assert(outputBuffer != NULL);
+
+ /* write signal to both channels */
+
+ for(i=0; i<N48; i++)
+ out48k_short[i] = (short)out48k[i];
+ for(i=0; i<framesPerBuffer; i++,wptr+=2) {
+ wptr[0] = out48k_short[i];
+ wptr[1] = out48k_short[i];
+ }
+
+ return finished;
+}
+
+int main(int argc, char *argv[])
+{
+ PaStreamParameters outputParameters;
+ PaStream* stream;
+ PaError err = paNoError;
+ paTestData data;
+ int i;
+
+ if (argc != 2) {
+ printf("usage: %s rawFile\n", argv[0]);
+ exit(0);
+ }
+
+ data.fin = fopen(argv[1], "rt");
+ if (data.fin == NULL) {
+ printf("Error opening input raw file %s\n", argv[1]);
+ exit(1);
+ }
+
+ for(i=0; i<MEM8; i++)
+ data.in8k[i] = 0.0;
+
+ err = Pa_Initialize();
+ if( err != paNoError ) goto done;
+
+ outputParameters.device = Pa_GetDefaultOutputDevice(); /* default input device */
+ if (outputParameters.device == paNoDevice) {
+ fprintf(stderr,"Error: No default output device.\n");
+ goto done;
+ }
+ outputParameters.channelCount = NUM_CHANNELS; /* stereo input */
+ outputParameters.sampleFormat = paInt16;
+ outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
+ outputParameters.hostApiSpecificStreamInfo = NULL;
+
+ /* Play some audio --------------------------------------------- */
+
+ err = Pa_OpenStream(
+ &stream,
+ NULL,
+ &outputParameters,
+ SAMPLE_RATE,
+ N48,
+ paClipOff,
+ playCallback,
+ &data );
+ if( err != paNoError ) goto done;
+
+ err = Pa_StartStream( stream );
+ if( err != paNoError ) goto done;
+
+ while( ( err = Pa_IsStreamActive( stream ) ) == 1 )
+ {
+ Pa_Sleep(100);
+ }
+ if( err < 0 ) goto done;
+
+ err = Pa_CloseStream( stream );
+ if( err != paNoError ) goto done;
+
+ fclose(data.fin);
+
+
+done:
+ Pa_Terminate();
+ if( err != paNoError )
+ {
+ 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 ) );
+ err = 1; /* Always return 0 or 1, but no other return codes. */
+ }
+ return err;
+}
+
--- /dev/null
+/*
+ pa_rec.c
+ David Rowe
+ July 6 2012
+
+ Records at 48000 Hz from default sound device, convertes to 8 kHz,
+ and saves to raw file. Used to get experience with Portaudio.
+
+ Modified from paex_record.c Portaudio example. Original author
+ author Phil Burk http://www.softsynth.com
+
+ To Build:
+
+ gcc paex_rec.c -o paex_rec -lm -lrt -lportaudio -pthread
+*/
+
+/*
+ * $Id: paex_record.c 1752 2011-09-08 03:21:55Z philburk $
+ *
+ * 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 <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "portaudio.h"
+#include "fdmdv.h"
+
+#define SAMPLE_RATE 48000 /* 48 kHz sampling rate rec. as we
+ can trust accuracy of sound
+ card */
+#define N8 160 /* processing buffer size at 8 kHz */
+#define N48 (N8*FDMDV_OS) /* processing buffer size at 48 kHz */
+#define NUM_CHANNELS 2 /* I think most sound cards prefer
+ stereo, we will convert to mono
+ as we sample */
+
+/* state information passed to call back */
+
+typedef struct {
+ FILE *fout;
+ int framesLeft;
+ float in48k[FDMDV_OS_TAPS + N48];
+} paTestData;
+
+
+/*
+ This routine will be called by the PortAudio engine when audio is
+ available. 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( const void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ const PaStreamCallbackTimeInfo* timeInfo,
+ PaStreamCallbackFlags statusFlags,
+ void *userData )
+{
+ paTestData *data = (paTestData*)userData;
+ FILE *fout = data->fout;
+ int framesToCopy;
+ int i, n8;
+ int finished;
+ short *rptr = (short*)inputBuffer;
+ float out8k[N8];
+ short out8k_short[N8];
+
+ (void) outputBuffer; /* Prevent unused variable warnings. */
+ (void) timeInfo;
+ (void) statusFlags;
+ (void) userData;
+
+ if (data->framesLeft < framesPerBuffer) {
+ framesToCopy = data->framesLeft;
+ finished = paComplete;
+ }
+ else {
+ framesToCopy = framesPerBuffer;
+ finished = paContinue;
+ }
+ data->framesLeft -= framesToCopy;
+
+ assert(inputBuffer != NULL);
+
+ /* just use left channel */
+
+ for(i=0; i<framesToCopy; i++,rptr+=2)
+ data->in48k[i+FDMDV_OS_TAPS] = *rptr;
+
+ /* downsample and update filter memory */
+
+ fdmdv_48_to_8(out8k, &data->in48k[FDMDV_OS_TAPS], N8);
+ for(i=0; i<FDMDV_OS_TAPS; i++)
+ data->in48k[i] = data->in48k[i+framesToCopy];
+
+ /* save 8k to disk */
+
+ for(i=0; i<N8; i++)
+ out8k_short[i] = (short)out8k[i];
+
+ /* note Portaudio docs recs. against making systems calls like
+ fwrite() in this callback but seems to work OK */
+
+ fwrite(out8k_short, sizeof(short), N8, fout);
+
+ return finished;
+}
+
+int main(int argc, char *argv[])
+{
+ PaStreamParameters inputParameters,
+ outputParameters;
+ PaStream* stream;
+ PaError err = paNoError;
+ paTestData data;
+ int i;
+ int numSecs;
+
+ if (argc != 3) {
+ printf("usage: %s rawFile time(s)\n", argv[0]);
+ exit(0);
+ }
+
+ data.fout = fopen(argv[1], "wt");
+ if (data.fout == NULL) {
+ printf("Error opening output raw file %s\n", argv[1]);
+ exit(1);
+ }
+
+ numSecs = atoi(argv[2]);
+ data.framesLeft = numSecs * SAMPLE_RATE;
+
+ for(i=0; i<FDMDV_OS_TAPS; i++)
+ data.in48k[i] = 0.0;
+
+ err = Pa_Initialize();
+ if( err != paNoError ) goto done;
+
+ inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
+ if (inputParameters.device == paNoDevice) {
+ fprintf(stderr,"Error: No default input device.\n");
+ goto done;
+ }
+ inputParameters.channelCount = NUM_CHANNELS; /* stereo input */
+ inputParameters.sampleFormat = paInt16;
+ inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency;
+ inputParameters.hostApiSpecificStreamInfo = NULL;
+
+ /* Record some audio --------------------------------------------- */
+
+ err = Pa_OpenStream(
+ &stream,
+ &inputParameters,
+ NULL, /* &outputParameters, */
+ SAMPLE_RATE,
+ N48,
+ paClipOff, /* we won't output out of range samples so don't bother clipping them */
+ recordCallback,
+ &data );
+ if( err != paNoError ) goto done;
+
+ err = Pa_StartStream( stream );
+ if( err != paNoError ) goto done;
+
+ while( ( err = Pa_IsStreamActive( stream ) ) == 1 )
+ {
+ Pa_Sleep(100);
+ }
+ if( err < 0 ) goto done;
+
+ err = Pa_CloseStream( stream );
+ if( err != paNoError ) goto done;
+
+ fclose(data.fout);
+
+
+done:
+ Pa_Terminate();
+ if( err != paNoError )
+ {
+ 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 ) );
+ err = 1; /* Always return 0 or 1, but no other return codes. */
+ }
+ return err;
+}
+
--- /dev/null
+/*
+ pa_recplay.c
+ David Rowe
+ July 8 2012
+
+ Echos audio from sound card input to sound card output. Samples at
+ 48 kHz, converts to 8 kHz, converts back to 48kHz, and plays using
+ the default sound device. Used as an intermediate step in
+ Portaudio integration.
+
+ Modified from paex_record.c Portaudio example. Original author
+ author Phil Burk http://www.softsynth.com
+*/
+
+/*
+ * $Id: paex_record.c 1752 2011-09-08 03:21:55Z philburk $
+ *
+ * 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 <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "portaudio.h"
+#include "fdmdv.h"
+
+#define SAMPLE_RATE 48000 /* 48 kHz sampling rate rec. as we
+ can trust accuracy of sound
+ card */
+#define N8 160 /* processing buffer size at 8 kHz */
+#define N48 (N8*FDMDV_OS) /* processing buffer size at 48 kHz */
+#define MEM8 (FDMDV_OS_TAPS/FDMDV_OS)
+#define NUM_CHANNELS 2 /* I think most sound cards prefer
+ stereo, we will convert to mono
+ as we sample */
+
+/* state information passed to call back */
+
+typedef struct {
+ float in48k[FDMDV_OS_TAPS + N48];
+ float in8k[MEM8 + N8];
+} paTestData;
+
+
+/*
+ This routine will be called by the PortAudio engine when audio is
+ required. 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 callback( const void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ const PaStreamCallbackTimeInfo* timeInfo,
+ PaStreamCallbackFlags statusFlags,
+ void *userData )
+{
+ paTestData *data = (paTestData*)userData;
+ int i;
+ short *rptr = (short*)inputBuffer;
+ short *wptr = (short*)outputBuffer;
+ float *in8k = data->in8k;
+ float *in48k = data->in48k;
+ float out8k[N8];
+ float out48k[N48];
+ short out48k_short[N48];
+
+ (void) timeInfo;
+ (void) statusFlags;
+
+ assert(inputBuffer != NULL);
+
+ /* just use left channel */
+
+ for(i=0; i<framesPerBuffer; i++,rptr+=2)
+ data->in48k[i+FDMDV_OS_TAPS] = *rptr;
+
+ /* downsample and update filter memory */
+
+ fdmdv_48_to_8(out8k, &in48k[FDMDV_OS_TAPS], N8);
+ for(i=0; i<FDMDV_OS_TAPS; i++)
+ in48k[i] = in48k[i+framesPerBuffer];
+
+ /* play side, back up to 8k */
+
+ for(i=0; i<N8; i++)
+ in8k[MEM8+i] = out8k[i];
+
+ /* upsample and update filter memory */
+
+ fdmdv_8_to_48(out48k, &in8k[MEM8], N8);
+ for(i=0; i<MEM8; i++)
+ in8k[i] = in8k[i+N8];
+
+ assert(outputBuffer != NULL);
+
+ /* write signal to both channels */
+
+ for(i=0; i<N48; i++)
+ out48k_short[i] = (short)out48k[i];
+ for(i=0; i<framesPerBuffer; i++,wptr+=2) {
+ wptr[0] = out48k_short[i];
+ wptr[1] = out48k_short[i];
+ }
+
+ return paContinue;
+}
+
+int main(int argc, char *argv[])
+{
+ PaStreamParameters inputParameters, outputParameters;
+ PaStream* stream;
+ PaError err = paNoError;
+ paTestData data;
+ int i;
+
+ for(i=0; i<MEM8; i++)
+ data.in8k[i] = 0.0;
+ for(i=0; i<FDMDV_OS_TAPS; i++)
+ data.in48k[i] = 0.0;
+
+ err = Pa_Initialize();
+ if( err != paNoError ) goto done;
+
+ inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
+ if (inputParameters.device == paNoDevice) {
+ fprintf(stderr,"Error: No default input device.\n");
+ goto done;
+ }
+ inputParameters.channelCount = NUM_CHANNELS; /* stereo input */
+ inputParameters.sampleFormat = paInt16;
+ inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency;
+ inputParameters.hostApiSpecificStreamInfo = NULL;
+
+ outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
+ if (outputParameters.device == paNoDevice) {
+ fprintf(stderr,"Error: No default output device.\n");
+ goto done;
+ }
+ outputParameters.channelCount = NUM_CHANNELS; /* stereo output */
+ outputParameters.sampleFormat = paInt16;
+ outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
+ outputParameters.hostApiSpecificStreamInfo = NULL;
+
+ /* Play some audio --------------------------------------------- */
+
+ err = Pa_OpenStream(
+ &stream,
+ &inputParameters,
+ &outputParameters,
+ SAMPLE_RATE,
+ N48,
+ paClipOff,
+ callback,
+ &data );
+ if( err != paNoError ) goto done;
+
+ err = Pa_StartStream( stream );
+ if( err != paNoError ) goto done;
+
+ while( ( err = Pa_IsStreamActive( stream ) ) == 1 )
+ {
+ Pa_Sleep(100);
+ }
+ if( err < 0 ) goto done;
+
+ err = Pa_CloseStream( stream );
+ if( err != paNoError ) goto done;
+
+
+done:
+ Pa_Terminate();
+ if( err != paNoError )
+ {
+ 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 ) );
+ err = 1; /* Always return 0 or 1, but no other return codes. */
+ }
+ return err;
+}
+
projects / freetel-svn-tracking.git / commitdiff