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Diffstat (limited to 'portaudio/examples/paex_read_write_wire.c')
| -rw-r--r-- | portaudio/examples/paex_read_write_wire.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/portaudio/examples/paex_read_write_wire.c b/portaudio/examples/paex_read_write_wire.c deleted file mode 100644 index b5046af..0000000 --- a/portaudio/examples/paex_read_write_wire.c +++ /dev/null @@ -1,204 +0,0 @@ -/** @file paex_read_write_wire.c - @ingroup examples_src - @brief Tests full duplex blocking I/O by passing input straight to output. - @author Bjorn Roche. XO Audio LLC for Z-Systems Engineering. - @author based on code by: Phil Burk http://www.softsynth.com - @author based on code by: Ross Bencina rossb@audiomulch.com -*/ -/* - * $Id: patest_read_record.c 757 2004-02-13 07:48:10Z rossbencina $ - * - * 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 <stdlib.h> -#include <string.h> -#include "portaudio.h" - -/* #define SAMPLE_RATE (17932) // Test failure to open with this value. */ -#define SAMPLE_RATE (44100) -#define FRAMES_PER_BUFFER (512) -#define NUM_SECONDS (10) -/* #define DITHER_FLAG (paDitherOff) */ -#define DITHER_FLAG (0) - -/* Select sample format. */ -#if 1 -#define PA_SAMPLE_TYPE paFloat32 -#define SAMPLE_SIZE (4) -#define SAMPLE_SILENCE (0.0f) -#define PRINTF_S_FORMAT "%.8f" -#elif 0 -#define PA_SAMPLE_TYPE paInt16 -#define SAMPLE_SIZE (2) -#define SAMPLE_SILENCE (0) -#define PRINTF_S_FORMAT "%d" -#elif 0 -#define PA_SAMPLE_TYPE paInt24 -#define SAMPLE_SIZE (3) -#define SAMPLE_SILENCE (0) -#define PRINTF_S_FORMAT "%d" -#elif 0 -#define PA_SAMPLE_TYPE paInt8 -#define SAMPLE_SIZE (1) -#define SAMPLE_SILENCE (0) -#define PRINTF_S_FORMAT "%d" -#else -#define PA_SAMPLE_TYPE paUInt8 -#define SAMPLE_SIZE (1) -#define SAMPLE_SILENCE (128) -#define PRINTF_S_FORMAT "%d" -#endif - -/*******************************************************************/ -int main(void); -int main(void) -{ - PaStreamParameters inputParameters, outputParameters; - PaStream *stream = NULL; - PaError err; - const PaDeviceInfo* inputInfo; - const PaDeviceInfo* outputInfo; - char *sampleBlock = NULL; - int i; - int numBytes; - int numChannels; - - printf("patest_read_write_wire.c\n"); fflush(stdout); - printf("sizeof(int) = %lu\n", sizeof(int)); fflush(stdout); - printf("sizeof(long) = %lu\n", sizeof(long)); fflush(stdout); - - err = Pa_Initialize(); - if( err != paNoError ) goto error2; - - inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */ - printf( "Input device # %d.\n", inputParameters.device ); - inputInfo = Pa_GetDeviceInfo( inputParameters.device ); - printf( " Name: %s\n", inputInfo->name ); - printf( " LL: %g s\n", inputInfo->defaultLowInputLatency ); - printf( " HL: %g s\n", inputInfo->defaultHighInputLatency ); - - outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */ - printf( "Output device # %d.\n", outputParameters.device ); - outputInfo = Pa_GetDeviceInfo( outputParameters.device ); - printf( " Name: %s\n", outputInfo->name ); - printf( " LL: %g s\n", outputInfo->defaultLowOutputLatency ); - printf( " HL: %g s\n", outputInfo->defaultHighOutputLatency ); - - numChannels = inputInfo->maxInputChannels < outputInfo->maxOutputChannels - ? inputInfo->maxInputChannels : outputInfo->maxOutputChannels; - printf( "Num channels = %d.\n", numChannels ); - - inputParameters.channelCount = numChannels; - inputParameters.sampleFormat = PA_SAMPLE_TYPE; - inputParameters.suggestedLatency = inputInfo->defaultHighInputLatency ; - inputParameters.hostApiSpecificStreamInfo = NULL; - - outputParameters.channelCount = numChannels; - outputParameters.sampleFormat = PA_SAMPLE_TYPE; - outputParameters.suggestedLatency = outputInfo->defaultHighOutputLatency; - outputParameters.hostApiSpecificStreamInfo = NULL; - - /* -- setup -- */ - - err = Pa_OpenStream( - &stream, - &inputParameters, - &outputParameters, - SAMPLE_RATE, - FRAMES_PER_BUFFER, - paClipOff, /* we won't output out of range samples so don't bother clipping them */ - NULL, /* no callback, use blocking API */ - NULL ); /* no callback, so no callback userData */ - if( err != paNoError ) goto error2; - - numBytes = FRAMES_PER_BUFFER * numChannels * SAMPLE_SIZE ; - sampleBlock = (char *) malloc( numBytes ); - if( sampleBlock == NULL ) - { - printf("Could not allocate record array.\n"); - goto error1; - } - memset( sampleBlock, SAMPLE_SILENCE, numBytes ); - - err = Pa_StartStream( stream ); - if( err != paNoError ) goto error1; - printf("Wire on. Will run %d seconds.\n", NUM_SECONDS); fflush(stdout); - - for( i=0; i<(NUM_SECONDS*SAMPLE_RATE)/FRAMES_PER_BUFFER; ++i ) - { - // You may get underruns or overruns if the output is not primed by PortAudio. - err = Pa_WriteStream( stream, sampleBlock, FRAMES_PER_BUFFER ); - if( err ) goto xrun; - err = Pa_ReadStream( stream, sampleBlock, FRAMES_PER_BUFFER ); - if( err ) goto xrun; - } - printf("Wire off.\n"); fflush(stdout); - - err = Pa_StopStream( stream ); - if( err != paNoError ) goto error1; - - free( sampleBlock ); - - Pa_Terminate(); - return 0; - -xrun: - printf("err = %d\n", err); fflush(stdout); - if( stream ) { - Pa_AbortStream( stream ); - Pa_CloseStream( stream ); - } - free( sampleBlock ); - Pa_Terminate(); - if( err & paInputOverflow ) - fprintf( stderr, "Input Overflow.\n" ); - if( err & paOutputUnderflow ) - fprintf( stderr, "Output Underflow.\n" ); - return -2; -error1: - free( sampleBlock ); -error2: - if( stream ) { - Pa_AbortStream( stream ); - Pa_CloseStream( stream ); - } - Pa_Terminate(); - fprintf( stderr, "An error occurred while using the portaudio stream\n" ); - fprintf( stderr, "Error number: %d\n", err ); - fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) ); - return -1; -} |