cannam@89: /** @file patest_wire.c cannam@89: @ingroup test_src cannam@89: @brief Pass input directly to output. cannam@89: cannam@89: Note that some HW devices, for example many ISA audio cards cannam@89: on PCs, do NOT support full duplex! For a PC, you normally need cannam@89: a PCI based audio card such as the SBLive. cannam@89: cannam@89: @author Phil Burk http://www.softsynth.com cannam@89: cannam@89: While adapting to V19-API, I excluded configs with framesPerCallback=0 cannam@89: because of an assert in file pa_common/pa_process.c. Pieter, Oct 9, 2003. cannam@89: cannam@89: */ cannam@89: /* cannam@89: * $Id: patest_wire.c 1368 2008-03-01 00:38:27Z rossb $ cannam@89: * cannam@89: * This program uses the PortAudio Portable Audio Library. cannam@89: * For more information see: http://www.portaudio.com cannam@89: * Copyright (c) 1999-2000 Ross Bencina and Phil Burk cannam@89: * cannam@89: * Permission is hereby granted, free of charge, to any person obtaining cannam@89: * a copy of this software and associated documentation files cannam@89: * (the "Software"), to deal in the Software without restriction, cannam@89: * including without limitation the rights to use, copy, modify, merge, cannam@89: * publish, distribute, sublicense, and/or sell copies of the Software, cannam@89: * and to permit persons to whom the Software is furnished to do so, cannam@89: * subject to the following conditions: cannam@89: * cannam@89: * The above copyright notice and this permission notice shall be cannam@89: * included in all copies or substantial portions of the Software. cannam@89: * cannam@89: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, cannam@89: * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF cannam@89: * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. cannam@89: * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR cannam@89: * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF cannam@89: * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION cannam@89: * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. cannam@89: */ cannam@89: cannam@89: /* cannam@89: * The text above constitutes the entire PortAudio license; however, cannam@89: * the PortAudio community also makes the following non-binding requests: cannam@89: * cannam@89: * Any person wishing to distribute modifications to the Software is cannam@89: * requested to send the modifications to the original developer so that cannam@89: * they can be incorporated into the canonical version. It is also cannam@89: * requested that these non-binding requests be included along with the cannam@89: * license above. cannam@89: */ cannam@89: cannam@89: #include cannam@89: #include cannam@89: #include "portaudio.h" cannam@89: cannam@89: #define SAMPLE_RATE (44100) cannam@89: cannam@89: typedef struct WireConfig_s cannam@89: { cannam@89: int isInputInterleaved; cannam@89: int isOutputInterleaved; cannam@89: int numInputChannels; cannam@89: int numOutputChannels; cannam@89: int framesPerCallback; cannam@89: } WireConfig_t; cannam@89: cannam@89: #define USE_FLOAT_INPUT (1) cannam@89: #define USE_FLOAT_OUTPUT (1) cannam@89: cannam@89: /* Latencies set to defaults. */ cannam@89: cannam@89: #if USE_FLOAT_INPUT cannam@89: #define INPUT_FORMAT paFloat32 cannam@89: typedef float INPUT_SAMPLE; cannam@89: #else cannam@89: #define INPUT_FORMAT paInt16 cannam@89: typedef short INPUT_SAMPLE; cannam@89: #endif cannam@89: cannam@89: #if USE_FLOAT_OUTPUT cannam@89: #define OUTPUT_FORMAT paFloat32 cannam@89: typedef float OUTPUT_SAMPLE; cannam@89: #else cannam@89: #define OUTPUT_FORMAT paInt16 cannam@89: typedef short OUTPUT_SAMPLE; cannam@89: #endif cannam@89: cannam@89: double gInOutScaler = 1.0; cannam@89: #define CONVERT_IN_TO_OUT(in) ((OUTPUT_SAMPLE) ((in) * gInOutScaler)) cannam@89: cannam@89: #define INPUT_DEVICE (Pa_GetDefaultInputDevice()) cannam@89: #define OUTPUT_DEVICE (Pa_GetDefaultOutputDevice()) cannam@89: cannam@89: static PaError TestConfiguration( WireConfig_t *config ); cannam@89: cannam@89: static int wireCallback( const void *inputBuffer, void *outputBuffer, cannam@89: unsigned long framesPerBuffer, cannam@89: const PaStreamCallbackTimeInfo* timeInfo, cannam@89: PaStreamCallbackFlags statusFlags, cannam@89: void *userData ); cannam@89: cannam@89: /* This routine will be called by the PortAudio engine when audio is needed. cannam@89: ** It may be called at interrupt level on some machines so don't do anything cannam@89: ** that could mess up the system like calling malloc() or free(). cannam@89: */ cannam@89: cannam@89: static int wireCallback( const void *inputBuffer, void *outputBuffer, cannam@89: unsigned long framesPerBuffer, cannam@89: const PaStreamCallbackTimeInfo* timeInfo, cannam@89: PaStreamCallbackFlags statusFlags, cannam@89: void *userData ) cannam@89: { cannam@89: INPUT_SAMPLE *in; cannam@89: OUTPUT_SAMPLE *out; cannam@89: int inStride; cannam@89: int outStride; cannam@89: int inDone = 0; cannam@89: int outDone = 0; cannam@89: WireConfig_t *config = (WireConfig_t *) userData; cannam@89: unsigned int i; cannam@89: int inChannel, outChannel; cannam@89: cannam@89: /* This may get called with NULL inputBuffer during initial setup. */ cannam@89: if( inputBuffer == NULL) return 0; cannam@89: cannam@89: inChannel=0, outChannel=0; cannam@89: while( !(inDone && outDone) ) cannam@89: { cannam@89: if( config->isInputInterleaved ) cannam@89: { cannam@89: in = ((INPUT_SAMPLE*)inputBuffer) + inChannel; cannam@89: inStride = config->numInputChannels; cannam@89: } cannam@89: else cannam@89: { cannam@89: in = ((INPUT_SAMPLE**)inputBuffer)[inChannel]; cannam@89: inStride = 1; cannam@89: } cannam@89: cannam@89: if( config->isOutputInterleaved ) cannam@89: { cannam@89: out = ((OUTPUT_SAMPLE*)outputBuffer) + outChannel; cannam@89: outStride = config->numOutputChannels; cannam@89: } cannam@89: else cannam@89: { cannam@89: out = ((OUTPUT_SAMPLE**)outputBuffer)[outChannel]; cannam@89: outStride = 1; cannam@89: } cannam@89: cannam@89: for( i=0; inumInputChannels - 1)) inChannel++; cannam@89: else inDone = 1; cannam@89: if(outChannel < (config->numOutputChannels - 1)) outChannel++; cannam@89: else outDone = 1; cannam@89: } cannam@89: return 0; cannam@89: } cannam@89: cannam@89: /*******************************************************************/ cannam@89: int main(void); cannam@89: int main(void) cannam@89: { cannam@89: PaError err = paNoError; cannam@89: WireConfig_t CONFIG; cannam@89: WireConfig_t *config = &CONFIG; cannam@89: int configIndex = 0;; cannam@89: cannam@89: err = Pa_Initialize(); cannam@89: if( err != paNoError ) goto error; cannam@89: cannam@89: printf("Please connect audio signal to input and listen for it on output!\n"); cannam@89: printf("input format = %lu\n", INPUT_FORMAT ); cannam@89: printf("output format = %lu\n", OUTPUT_FORMAT ); cannam@89: printf("input device ID = %d\n", INPUT_DEVICE ); cannam@89: printf("output device ID = %d\n", OUTPUT_DEVICE ); cannam@89: cannam@89: if( INPUT_FORMAT == OUTPUT_FORMAT ) cannam@89: { cannam@89: gInOutScaler = 1.0; cannam@89: } cannam@89: else if( (INPUT_FORMAT == paInt16) && (OUTPUT_FORMAT == paFloat32) ) cannam@89: { cannam@89: gInOutScaler = 1.0/32768.0; cannam@89: } cannam@89: else if( (INPUT_FORMAT == paFloat32) && (OUTPUT_FORMAT == paInt16) ) cannam@89: { cannam@89: gInOutScaler = 32768.0; cannam@89: } cannam@89: cannam@89: for( config->isInputInterleaved = 0; config->isInputInterleaved < 2; config->isInputInterleaved++ ) cannam@89: { cannam@89: for( config->isOutputInterleaved = 0; config->isOutputInterleaved < 2; config->isOutputInterleaved++ ) cannam@89: { cannam@89: for( config->numInputChannels = 1; config->numInputChannels < 3; config->numInputChannels++ ) cannam@89: { cannam@89: for( config->numOutputChannels = 1; config->numOutputChannels < 3; config->numOutputChannels++ ) cannam@89: { cannam@89: /* If framesPerCallback = 0, assertion fails in file pa_common/pa_process.c, line 1413: EX. */ cannam@89: for( config->framesPerCallback = 64; config->framesPerCallback < 129; config->framesPerCallback += 64 ) cannam@89: { cannam@89: printf("-----------------------------------------------\n" ); cannam@89: printf("Configuration #%d\n", configIndex++ ); cannam@89: err = TestConfiguration( config ); cannam@89: /* Give user a chance to bail out. */ cannam@89: if( err == 1 ) cannam@89: { cannam@89: err = paNoError; cannam@89: goto done; cannam@89: } cannam@89: else if( err != paNoError ) goto error; cannam@89: } cannam@89: } cannam@89: } cannam@89: } cannam@89: } cannam@89: cannam@89: done: cannam@89: Pa_Terminate(); cannam@89: printf("Full duplex sound test complete.\n"); fflush(stdout); cannam@89: printf("Hit ENTER to quit.\n"); fflush(stdout); cannam@89: getchar(); cannam@89: return 0; cannam@89: cannam@89: error: cannam@89: Pa_Terminate(); cannam@89: fprintf( stderr, "An error occured while using the portaudio stream\n" ); cannam@89: fprintf( stderr, "Error number: %d\n", err ); cannam@89: fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) ); cannam@89: printf("Hit ENTER to quit.\n"); fflush(stdout); cannam@89: getchar(); cannam@89: return -1; cannam@89: } cannam@89: cannam@89: static PaError TestConfiguration( WireConfig_t *config ) cannam@89: { cannam@89: int c; cannam@89: PaError err = paNoError; cannam@89: PaStream *stream; cannam@89: PaStreamParameters inputParameters, outputParameters; cannam@89: cannam@89: printf("input %sinterleaved!\n", (config->isInputInterleaved ? " " : "NOT ") ); cannam@89: printf("output %sinterleaved!\n", (config->isOutputInterleaved ? " " : "NOT ") ); cannam@89: printf("input channels = %d\n", config->numInputChannels ); cannam@89: printf("output channels = %d\n", config->numOutputChannels ); cannam@89: printf("framesPerCallback = %d\n", config->framesPerCallback ); cannam@89: cannam@89: inputParameters.device = INPUT_DEVICE; /* default input device */ cannam@89: if (inputParameters.device == paNoDevice) { cannam@89: fprintf(stderr,"Error: No default input device.\n"); cannam@89: goto error; cannam@89: } cannam@89: inputParameters.channelCount = config->numInputChannels; cannam@89: inputParameters.sampleFormat = INPUT_FORMAT | (config->isInputInterleaved ? 0 : paNonInterleaved); cannam@89: inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency; cannam@89: inputParameters.hostApiSpecificStreamInfo = NULL; cannam@89: cannam@89: outputParameters.device = OUTPUT_DEVICE; /* default output device */ cannam@89: if (outputParameters.device == paNoDevice) { cannam@89: fprintf(stderr,"Error: No default output device.\n"); cannam@89: goto error; cannam@89: } cannam@89: outputParameters.channelCount = config->numOutputChannels; cannam@89: outputParameters.sampleFormat = OUTPUT_FORMAT | (config->isOutputInterleaved ? 0 : paNonInterleaved); cannam@89: outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency; cannam@89: outputParameters.hostApiSpecificStreamInfo = NULL; cannam@89: cannam@89: err = Pa_OpenStream( cannam@89: &stream, cannam@89: &inputParameters, cannam@89: &outputParameters, cannam@89: SAMPLE_RATE, cannam@89: config->framesPerCallback, /* frames per buffer */ cannam@89: paClipOff, /* we won't output out of range samples so don't bother clipping them */ cannam@89: wireCallback, cannam@89: config ); cannam@89: if( err != paNoError ) goto error; cannam@89: cannam@89: err = Pa_StartStream( stream ); cannam@89: if( err != paNoError ) goto error; cannam@89: cannam@89: printf("Hit ENTER for next configuration, or 'q' to quit.\n"); fflush(stdout); cannam@89: c = getchar(); cannam@89: cannam@89: printf("Closing stream.\n"); cannam@89: err = Pa_CloseStream( stream ); cannam@89: if( err != paNoError ) goto error; cannam@89: cannam@89: if( c == 'q' ) return 1; cannam@89: cannam@89: error: cannam@89: return err; cannam@89: }