test/patest_wire.c - external/github.com/PortAudio/portaudio - Git at Google

 /** @file patest_wire.c
 	@ingroup test_src
 	@brief Pass input directly to output.

 	Note that some HW devices, for example many ISA audio cards
 	on PCs, do NOT support full duplex! For a PC, you normally need
 	a PCI based audio card such as the SBLive.

 	@author Phil Burk  http://www.softsynth.com

  While adapting to V19-API, I excluded configs with framesPerCallback=0
  because of an assert in file pa_common/pa_process.c. Pieter, Oct 9, 2003.

 */
 /*
  * $Id$
  *
  * 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 <math.h>
 #include "portaudio.h"

 #define SAMPLE_RATE            (44100)

 typedef struct WireConfig_s
 {
     int isInputInterleaved;
     int isOutputInterleaved;
     int numInputChannels;
     int numOutputChannels;
     int framesPerCallback;
 } WireConfig_t;

 #define USE_FLOAT_INPUT        (1)
 #define USE_FLOAT_OUTPUT       (1)

 /* Latencies set to defaults. */

 #if USE_FLOAT_INPUT
     #define INPUT_FORMAT  paFloat32
     typedef float INPUT_SAMPLE;
 #else
     #define INPUT_FORMAT  paInt16
     typedef short INPUT_SAMPLE;
 #endif

 #if USE_FLOAT_OUTPUT
     #define OUTPUT_FORMAT  paFloat32
     typedef float OUTPUT_SAMPLE;
 #else
     #define OUTPUT_FORMAT  paInt16
     typedef short OUTPUT_SAMPLE;
 #endif

 double gInOutScaler = 1.0;
 #define CONVERT_IN_TO_OUT(in)  ((OUTPUT_SAMPLE) ((in) * gInOutScaler))

 #define INPUT_DEVICE           (Pa_GetDefaultInputDevice())
 #define OUTPUT_DEVICE          (Pa_GetDefaultOutputDevice())

 static PaError TestConfiguration( WireConfig_t *config );

 static int wireCallback( const void *inputBuffer, void *outputBuffer,
                          unsigned long framesPerBuffer,
                          const PaStreamCallbackTimeInfo* timeInfo,
                          PaStreamCallbackFlags statusFlags,
                          void *userData );

 /* 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 wireCallback( const void *inputBuffer, void *outputBuffer,
                          unsigned long framesPerBuffer,
                          const PaStreamCallbackTimeInfo* timeInfo,
                          PaStreamCallbackFlags statusFlags,
                          void *userData )
 {
     INPUT_SAMPLE *in;
     OUTPUT_SAMPLE *out;
     int inStride;
     int outStride;
     int inDone = 0;
     int outDone = 0;
     WireConfig_t *config = (WireConfig_t *) userData;
     unsigned int i;
     int inChannel, outChannel;

     /* This may get called with NULL inputBuffer during initial setup. */
     if( inputBuffer == NULL) return 0;

     inChannel=0, outChannel=0;
     while( !(inDone && outDone) )
     {
         if( config->isInputInterleaved )
         {
             in = ((INPUT_SAMPLE*)inputBuffer) + inChannel;
             inStride = config->numInputChannels;
         }
         else
         {
             in = ((INPUT_SAMPLE**)inputBuffer)[inChannel];
             inStride = 1;
         }

         if( config->isOutputInterleaved )
         {
             out = ((OUTPUT_SAMPLE*)outputBuffer) + outChannel;
             outStride = config->numOutputChannels;
         }
         else
         {
             out = ((OUTPUT_SAMPLE**)outputBuffer)[outChannel];
             outStride = 1;
         }

         for( i=0; i<framesPerBuffer; i++ )
         {
             *out = CONVERT_IN_TO_OUT( *in );
             out += outStride;
             in += inStride;
         }

         if(inChannel < (config->numInputChannels - 1)) inChannel++;
         else inDone = 1;
         if(outChannel < (config->numOutputChannels - 1)) outChannel++;
         else outDone = 1;
     }
     return 0;
 }

 /*******************************************************************/
 int main(void);
 int main(void)
 {
     PaError err = paNoError;
     WireConfig_t CONFIG;
     WireConfig_t *config = &CONFIG;
     int configIndex = 0;;

     err = Pa_Initialize();
     if( err != paNoError ) goto error;

     printf("Please connect audio signal to input and listen for it on output!\n");
     printf("input format = %lu\n", INPUT_FORMAT );
     printf("output format = %lu\n", OUTPUT_FORMAT );
     printf("input device ID  = %d\n", INPUT_DEVICE );
     printf("output device ID = %d\n", OUTPUT_DEVICE );

     if( INPUT_FORMAT == OUTPUT_FORMAT )
     {
         gInOutScaler = 1.0;
     }
     else if( (INPUT_FORMAT == paInt16) && (OUTPUT_FORMAT == paFloat32) )
     {
         gInOutScaler = 1.0/32768.0;
     }
     else if( (INPUT_FORMAT == paFloat32) && (OUTPUT_FORMAT == paInt16) )
     {
         gInOutScaler = 32768.0;
     }

     for( config->isInputInterleaved = 0; config->isInputInterleaved < 2; config->isInputInterleaved++ )
     {
         for( config->isOutputInterleaved = 0; config->isOutputInterleaved < 2; config->isOutputInterleaved++ )
         {
             for( config->numInputChannels = 1; config->numInputChannels < 3; config->numInputChannels++ )
             {
                 for( config->numOutputChannels = 1; config->numOutputChannels < 3; config->numOutputChannels++ )
                 {
                            /* If framesPerCallback = 0, assertion fails in file pa_common/pa_process.c, line 1413: EX. */
                     for( config->framesPerCallback = 64; config->framesPerCallback < 129; config->framesPerCallback += 64 )
                     {
                         printf("-----------------------------------------------\n" );
                         printf("Configuration #%d\n", configIndex++ );
                         err = TestConfiguration( config );
                         /* Give user a chance to bail out. */
                         if( err == 1 )
                         {
                             err = paNoError;
                             goto done;
                         }
                         else if( err != paNoError ) goto error;
                     }
                }
             }
         }
     }

 done:
     Pa_Terminate();
     printf("Full duplex sound test complete.\n"); fflush(stdout);
     printf("Hit ENTER to quit.\n");  fflush(stdout);
     getchar();
     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 ) );
     printf("Hit ENTER to quit.\n");  fflush(stdout);
     getchar();
     return -1;
 }

 static PaError TestConfiguration( WireConfig_t *config )
 {
     int c;
     PaError err = paNoError;
     PaStream *stream;
     PaStreamParameters inputParameters, outputParameters;

     printf("input %sinterleaved!\n", (config->isInputInterleaved ? " " : "NOT ") );
     printf("output %sinterleaved!\n", (config->isOutputInterleaved ? " " : "NOT ") );
     printf("input channels = %d\n", config->numInputChannels );
     printf("output channels = %d\n", config->numOutputChannels );
     printf("framesPerCallback = %d\n", config->framesPerCallback );

     inputParameters.device = INPUT_DEVICE;              /* default input device */
     if (inputParameters.device == paNoDevice) {
         fprintf(stderr,"Error: No default input device.\n");
         goto error;
     }
     inputParameters.channelCount = config->numInputChannels;
     inputParameters.sampleFormat = INPUT_FORMAT | (config->isInputInterleaved ? 0 : paNonInterleaved);
     inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency;
     inputParameters.hostApiSpecificStreamInfo = NULL;

     outputParameters.device = OUTPUT_DEVICE;            /* default output device */
     if (outputParameters.device == paNoDevice) {
         fprintf(stderr,"Error: No default output device.\n");
         goto error;
     }
     outputParameters.channelCount = config->numOutputChannels;
     outputParameters.sampleFormat = OUTPUT_FORMAT | (config->isOutputInterleaved ? 0 : paNonInterleaved);
     outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
     outputParameters.hostApiSpecificStreamInfo = NULL;

     err = Pa_OpenStream(
               &stream,
               &inputParameters,
               &outputParameters,
               SAMPLE_RATE,
               config->framesPerCallback, /* frames per buffer */
               paClipOff, /* we won't output out of range samples so don't bother clipping them */
               wireCallback,
               config );
     if( err != paNoError ) goto error;

     err = Pa_StartStream( stream );
     if( err != paNoError ) goto error;

     printf("Hit ENTER for next configuration, or 'q' to quit.\n");  fflush(stdout);
     c = getchar();

     printf("Closing stream.\n");
     err = Pa_CloseStream( stream );
     if( err != paNoError ) goto error;

     if( c == 'q' ) return 1;

 error:
     return err;
 }
	/** @file patest_wire.c
	@ingroup test_src
	@brief Pass input directly to output.

	Note that some HW devices, for example many ISA audio cards
	on PCs, do NOT support full duplex! For a PC, you normally need
	a PCI based audio card such as the SBLive.

	@author Phil Burk http://www.softsynth.com

	While adapting to V19-API, I excluded configs with framesPerCallback=0
	because of an assert in file pa_common/pa_process.c. Pieter, Oct 9, 2003.

	*/
	/*
	* $Id$
	*
	* 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 <math.h>
	#include "portaudio.h"

	#define SAMPLE_RATE (44100)

	typedef struct WireConfig_s
	{
	int isInputInterleaved;
	int isOutputInterleaved;
	int numInputChannels;
	int numOutputChannels;
	int framesPerCallback;
	} WireConfig_t;

	#define USE_FLOAT_INPUT (1)
	#define USE_FLOAT_OUTPUT (1)

	/* Latencies set to defaults. */

	#if USE_FLOAT_INPUT
	#define INPUT_FORMAT paFloat32
	typedef float INPUT_SAMPLE;
	#else
	#define INPUT_FORMAT paInt16
	typedef short INPUT_SAMPLE;
	#endif

	#if USE_FLOAT_OUTPUT
	#define OUTPUT_FORMAT paFloat32
	typedef float OUTPUT_SAMPLE;
	#else
	#define OUTPUT_FORMAT paInt16
	typedef short OUTPUT_SAMPLE;
	#endif

	double gInOutScaler = 1.0;
	#define CONVERT_IN_TO_OUT(in) ((OUTPUT_SAMPLE) ((in) * gInOutScaler))

	#define INPUT_DEVICE (Pa_GetDefaultInputDevice())
	#define OUTPUT_DEVICE (Pa_GetDefaultOutputDevice())

	static PaError TestConfiguration( WireConfig_t *config );

	static int wireCallback( const void inputBuffer, void outputBuffer,
	unsigned long framesPerBuffer,
	const PaStreamCallbackTimeInfo* timeInfo,
	PaStreamCallbackFlags statusFlags,
	void *userData );

	/* 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 wireCallback( const void inputBuffer, void outputBuffer,
	unsigned long framesPerBuffer,
	const PaStreamCallbackTimeInfo* timeInfo,
	PaStreamCallbackFlags statusFlags,
	void *userData )
	{
	INPUT_SAMPLE *in;
	OUTPUT_SAMPLE *out;
	int inStride;
	int outStride;
	int inDone = 0;
	int outDone = 0;
	WireConfig_t config = (WireConfig_t ) userData;
	unsigned int i;
	int inChannel, outChannel;

	/* This may get called with NULL inputBuffer during initial setup. */
	if( inputBuffer == NULL) return 0;

	inChannel=0, outChannel=0;
	while( !(inDone && outDone) )
	{
	if( config->isInputInterleaved )
	{
	in = ((INPUT_SAMPLE*)inputBuffer) + inChannel;
	inStride = config->numInputChannels;
	}
	else
	{
	in = ((INPUT_SAMPLE**)inputBuffer)[inChannel];
	inStride = 1;
	}

	if( config->isOutputInterleaved )
	{
	out = ((OUTPUT_SAMPLE*)outputBuffer) + outChannel;
	outStride = config->numOutputChannels;
	}
	else
	{
	out = ((OUTPUT_SAMPLE**)outputBuffer)[outChannel];
	outStride = 1;
	}

	for( i=0; i<framesPerBuffer; i++ )
	{
	out = CONVERT_IN_TO_OUT( in );
	out += outStride;
	in += inStride;
	}

	if(inChannel < (config->numInputChannels - 1)) inChannel++;
	else inDone = 1;
	if(outChannel < (config->numOutputChannels - 1)) outChannel++;
	else outDone = 1;
	}
	return 0;
	}

	/*******************************************************************/
	int main(void);
	int main(void)
	{
	PaError err = paNoError;
	WireConfig_t CONFIG;
	WireConfig_t *config = &CONFIG;
	int configIndex = 0;;

	err = Pa_Initialize();
	if( err != paNoError ) goto error;

	printf("Please connect audio signal to input and listen for it on output!\n");
	printf("input format = %lu\n", INPUT_FORMAT );
	printf("output format = %lu\n", OUTPUT_FORMAT );
	printf("input device ID = %d\n", INPUT_DEVICE );
	printf("output device ID = %d\n", OUTPUT_DEVICE );

	if( INPUT_FORMAT == OUTPUT_FORMAT )
	{
	gInOutScaler = 1.0;
	}
	else if( (INPUT_FORMAT == paInt16) && (OUTPUT_FORMAT == paFloat32) )
	{
	gInOutScaler = 1.0/32768.0;
	}
	else if( (INPUT_FORMAT == paFloat32) && (OUTPUT_FORMAT == paInt16) )
	{
	gInOutScaler = 32768.0;
	}

	for( config->isInputInterleaved = 0; config->isInputInterleaved < 2; config->isInputInterleaved++ )
	{
	for( config->isOutputInterleaved = 0; config->isOutputInterleaved < 2; config->isOutputInterleaved++ )
	{
	for( config->numInputChannels = 1; config->numInputChannels < 3; config->numInputChannels++ )
	{
	for( config->numOutputChannels = 1; config->numOutputChannels < 3; config->numOutputChannels++ )
	{
	/* If framesPerCallback = 0, assertion fails in file pa_common/pa_process.c, line 1413: EX. */
	for( config->framesPerCallback = 64; config->framesPerCallback < 129; config->framesPerCallback += 64 )
	{
	printf("-----------------------------------------------\n" );
	printf("Configuration #%d\n", configIndex++ );
	err = TestConfiguration( config );
	/* Give user a chance to bail out. */
	if( err == 1 )
	{
	err = paNoError;
	goto done;
	}
	else if( err != paNoError ) goto error;
	}
	}
	}
	}
	}

	done:
	Pa_Terminate();
	printf("Full duplex sound test complete.\n"); fflush(stdout);
	printf("Hit ENTER to quit.\n"); fflush(stdout);
	getchar();
	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 ) );
	printf("Hit ENTER to quit.\n"); fflush(stdout);
	getchar();
	return -1;
	}

	static PaError TestConfiguration( WireConfig_t *config )
	{
	int c;
	PaError err = paNoError;
	PaStream *stream;
	PaStreamParameters inputParameters, outputParameters;

	printf("input %sinterleaved!\n", (config->isInputInterleaved ? " " : "NOT ") );
	printf("output %sinterleaved!\n", (config->isOutputInterleaved ? " " : "NOT ") );
	printf("input channels = %d\n", config->numInputChannels );
	printf("output channels = %d\n", config->numOutputChannels );
	printf("framesPerCallback = %d\n", config->framesPerCallback );

	inputParameters.device = INPUT_DEVICE; /* default input device */
	if (inputParameters.device == paNoDevice) {
	fprintf(stderr,"Error: No default input device.\n");
	goto error;
	}
	inputParameters.channelCount = config->numInputChannels;
	inputParameters.sampleFormat = INPUT_FORMAT \| (config->isInputInterleaved ? 0 : paNonInterleaved);
	inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency;
	inputParameters.hostApiSpecificStreamInfo = NULL;

	outputParameters.device = OUTPUT_DEVICE; /* default output device */
	if (outputParameters.device == paNoDevice) {
	fprintf(stderr,"Error: No default output device.\n");
	goto error;
	}
	outputParameters.channelCount = config->numOutputChannels;
	outputParameters.sampleFormat = OUTPUT_FORMAT \| (config->isOutputInterleaved ? 0 : paNonInterleaved);
	outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
	outputParameters.hostApiSpecificStreamInfo = NULL;

	err = Pa_OpenStream(
	&stream,
	&inputParameters,
	&outputParameters,
	SAMPLE_RATE,
	config->framesPerCallback, /* frames per buffer */
	paClipOff, /* we won't output out of range samples so don't bother clipping them */
	wireCallback,
	config );
	if( err != paNoError ) goto error;

	err = Pa_StartStream( stream );
	if( err != paNoError ) goto error;

	printf("Hit ENTER for next configuration, or 'q' to quit.\n"); fflush(stdout);
	c = getchar();

	printf("Closing stream.\n");
	err = Pa_CloseStream( stream );
	if( err != paNoError ) goto error;

	if( c == 'q' ) return 1;

	error:
	return err;
	}