cannam@162: /** @file patest_wire.c cannam@162: @ingroup test_src cannam@162: @brief Pass input directly to output. cannam@162: cannam@162: Note that some HW devices, for example many ISA audio cards cannam@162: on PCs, do NOT support full duplex! For a PC, you normally need cannam@162: a PCI based audio card such as the SBLive. cannam@162: cannam@162: @author Phil Burk http://www.softsynth.com cannam@162: cannam@162: While adapting to V19-API, I excluded configs with framesPerCallback=0 cannam@162: because of an assert in file pa_common/pa_process.c. Pieter, Oct 9, 2003. cannam@162: cannam@162: */ cannam@162: /* cannam@162: * $Id$ cannam@162: * cannam@162: * This program uses the PortAudio Portable Audio Library. cannam@162: * For more information see: http://www.portaudio.com cannam@162: * Copyright (c) 1999-2000 Ross Bencina and Phil Burk cannam@162: * cannam@162: * Permission is hereby granted, free of charge, to any person obtaining cannam@162: * a copy of this software and associated documentation files cannam@162: * (the "Software"), to deal in the Software without restriction, cannam@162: * including without limitation the rights to use, copy, modify, merge, cannam@162: * publish, distribute, sublicense, and/or sell copies of the Software, cannam@162: * and to permit persons to whom the Software is furnished to do so, cannam@162: * subject to the following conditions: cannam@162: * cannam@162: * The above copyright notice and this permission notice shall be cannam@162: * included in all copies or substantial portions of the Software. cannam@162: * cannam@162: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, cannam@162: * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF cannam@162: * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. cannam@162: * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR cannam@162: * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF cannam@162: * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION cannam@162: * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. cannam@162: */ cannam@162: cannam@162: /* cannam@162: * The text above constitutes the entire PortAudio license; however, cannam@162: * the PortAudio community also makes the following non-binding requests: cannam@162: * cannam@162: * Any person wishing to distribute modifications to the Software is cannam@162: * requested to send the modifications to the original developer so that cannam@162: * they can be incorporated into the canonical version. It is also cannam@162: * requested that these non-binding requests be included along with the cannam@162: * license above. cannam@162: */ cannam@162: cannam@162: #include cannam@162: #include cannam@162: #include "portaudio.h" cannam@162: cannam@162: #define SAMPLE_RATE (44100) cannam@162: cannam@162: typedef struct WireConfig_s cannam@162: { cannam@162: int isInputInterleaved; cannam@162: int isOutputInterleaved; cannam@162: int numInputChannels; cannam@162: int numOutputChannels; cannam@162: int framesPerCallback; cannam@162: /* count status flags */ cannam@162: int numInputUnderflows; cannam@162: int numInputOverflows; cannam@162: int numOutputUnderflows; cannam@162: int numOutputOverflows; cannam@162: int numPrimingOutputs; cannam@162: int numCallbacks; cannam@162: } WireConfig_t; cannam@162: cannam@162: #define USE_FLOAT_INPUT (1) cannam@162: #define USE_FLOAT_OUTPUT (1) cannam@162: cannam@162: /* Latencies set to defaults. */ cannam@162: cannam@162: #if USE_FLOAT_INPUT cannam@162: #define INPUT_FORMAT paFloat32 cannam@162: typedef float INPUT_SAMPLE; cannam@162: #else cannam@162: #define INPUT_FORMAT paInt16 cannam@162: typedef short INPUT_SAMPLE; cannam@162: #endif cannam@162: cannam@162: #if USE_FLOAT_OUTPUT cannam@162: #define OUTPUT_FORMAT paFloat32 cannam@162: typedef float OUTPUT_SAMPLE; cannam@162: #else cannam@162: #define OUTPUT_FORMAT paInt16 cannam@162: typedef short OUTPUT_SAMPLE; cannam@162: #endif cannam@162: cannam@162: double gInOutScaler = 1.0; cannam@162: #define CONVERT_IN_TO_OUT(in) ((OUTPUT_SAMPLE) ((in) * gInOutScaler)) cannam@162: cannam@162: #define INPUT_DEVICE (Pa_GetDefaultInputDevice()) cannam@162: #define OUTPUT_DEVICE (Pa_GetDefaultOutputDevice()) cannam@162: cannam@162: static PaError TestConfiguration( WireConfig_t *config ); cannam@162: cannam@162: static int wireCallback( const void *inputBuffer, void *outputBuffer, cannam@162: unsigned long framesPerBuffer, cannam@162: const PaStreamCallbackTimeInfo* timeInfo, cannam@162: PaStreamCallbackFlags statusFlags, cannam@162: void *userData ); cannam@162: cannam@162: /* This routine will be called by the PortAudio engine when audio is needed. cannam@162: ** It may be called at interrupt level on some machines so don't do anything cannam@162: ** that could mess up the system like calling malloc() or free(). cannam@162: */ cannam@162: cannam@162: static int wireCallback( const void *inputBuffer, void *outputBuffer, cannam@162: unsigned long framesPerBuffer, cannam@162: const PaStreamCallbackTimeInfo* timeInfo, cannam@162: PaStreamCallbackFlags statusFlags, cannam@162: void *userData ) cannam@162: { cannam@162: INPUT_SAMPLE *in; cannam@162: OUTPUT_SAMPLE *out; cannam@162: int inStride; cannam@162: int outStride; cannam@162: int inDone = 0; cannam@162: int outDone = 0; cannam@162: WireConfig_t *config = (WireConfig_t *) userData; cannam@162: unsigned int i; cannam@162: int inChannel, outChannel; cannam@162: cannam@162: /* This may get called with NULL inputBuffer during initial setup. */ cannam@162: if( inputBuffer == NULL) return 0; cannam@162: cannam@162: /* Count flags */ cannam@162: if( (statusFlags & paInputUnderflow) != 0 ) config->numInputUnderflows += 1; cannam@162: if( (statusFlags & paInputOverflow) != 0 ) config->numInputOverflows += 1; cannam@162: if( (statusFlags & paOutputUnderflow) != 0 ) config->numOutputUnderflows += 1; cannam@162: if( (statusFlags & paOutputOverflow) != 0 ) config->numOutputOverflows += 1; cannam@162: if( (statusFlags & paPrimingOutput) != 0 ) config->numPrimingOutputs += 1; cannam@162: config->numCallbacks += 1; cannam@162: cannam@162: inChannel=0, outChannel=0; cannam@162: while( !(inDone && outDone) ) cannam@162: { cannam@162: if( config->isInputInterleaved ) cannam@162: { cannam@162: in = ((INPUT_SAMPLE*)inputBuffer) + inChannel; cannam@162: inStride = config->numInputChannels; cannam@162: } cannam@162: else cannam@162: { cannam@162: in = ((INPUT_SAMPLE**)inputBuffer)[inChannel]; cannam@162: inStride = 1; cannam@162: } cannam@162: cannam@162: if( config->isOutputInterleaved ) cannam@162: { cannam@162: out = ((OUTPUT_SAMPLE*)outputBuffer) + outChannel; cannam@162: outStride = config->numOutputChannels; cannam@162: } cannam@162: else cannam@162: { cannam@162: out = ((OUTPUT_SAMPLE**)outputBuffer)[outChannel]; cannam@162: outStride = 1; cannam@162: } cannam@162: cannam@162: for( i=0; inumInputChannels - 1)) inChannel++; cannam@162: else inDone = 1; cannam@162: if(outChannel < (config->numOutputChannels - 1)) outChannel++; cannam@162: else outDone = 1; cannam@162: } cannam@162: return 0; cannam@162: } cannam@162: cannam@162: /*******************************************************************/ cannam@162: int main(void); cannam@162: int main(void) cannam@162: { cannam@162: PaError err = paNoError; cannam@162: WireConfig_t CONFIG; cannam@162: WireConfig_t *config = &CONFIG; cannam@162: int configIndex = 0;; cannam@162: cannam@162: err = Pa_Initialize(); cannam@162: if( err != paNoError ) goto error; cannam@162: cannam@162: printf("Please connect audio signal to input and listen for it on output!\n"); cannam@162: printf("input format = %lu\n", INPUT_FORMAT ); cannam@162: printf("output format = %lu\n", OUTPUT_FORMAT ); cannam@162: printf("input device ID = %d\n", INPUT_DEVICE ); cannam@162: printf("output device ID = %d\n", OUTPUT_DEVICE ); cannam@162: cannam@162: if( INPUT_FORMAT == OUTPUT_FORMAT ) cannam@162: { cannam@162: gInOutScaler = 1.0; cannam@162: } cannam@162: else if( (INPUT_FORMAT == paInt16) && (OUTPUT_FORMAT == paFloat32) ) cannam@162: { cannam@162: gInOutScaler = 1.0/32768.0; cannam@162: } cannam@162: else if( (INPUT_FORMAT == paFloat32) && (OUTPUT_FORMAT == paInt16) ) cannam@162: { cannam@162: gInOutScaler = 32768.0; cannam@162: } cannam@162: cannam@162: for( config->isInputInterleaved = 0; config->isInputInterleaved < 2; config->isInputInterleaved++ ) cannam@162: { cannam@162: for( config->isOutputInterleaved = 0; config->isOutputInterleaved < 2; config->isOutputInterleaved++ ) cannam@162: { cannam@162: for( config->numInputChannels = 1; config->numInputChannels < 3; config->numInputChannels++ ) cannam@162: { cannam@162: for( config->numOutputChannels = 1; config->numOutputChannels < 3; config->numOutputChannels++ ) cannam@162: { cannam@162: /* If framesPerCallback = 0, assertion fails in file pa_common/pa_process.c, line 1413: EX. */ cannam@162: for( config->framesPerCallback = 64; config->framesPerCallback < 129; config->framesPerCallback += 64 ) cannam@162: { cannam@162: printf("-----------------------------------------------\n" ); cannam@162: printf("Configuration #%d\n", configIndex++ ); cannam@162: err = TestConfiguration( config ); cannam@162: /* Give user a chance to bail out. */ cannam@162: if( err == 1 ) cannam@162: { cannam@162: err = paNoError; cannam@162: goto done; cannam@162: } cannam@162: else if( err != paNoError ) goto error; cannam@162: } cannam@162: } cannam@162: } cannam@162: } cannam@162: } cannam@162: cannam@162: done: cannam@162: Pa_Terminate(); cannam@162: printf("Full duplex sound test complete.\n"); fflush(stdout); cannam@162: printf("Hit ENTER to quit.\n"); fflush(stdout); cannam@162: getchar(); cannam@162: return 0; cannam@162: cannam@162: error: cannam@162: Pa_Terminate(); cannam@162: fprintf( stderr, "An error occured while using the portaudio stream\n" ); cannam@162: fprintf( stderr, "Error number: %d\n", err ); cannam@162: fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) ); cannam@162: printf("Hit ENTER to quit.\n"); fflush(stdout); cannam@162: getchar(); cannam@162: return -1; cannam@162: } cannam@162: cannam@162: static PaError TestConfiguration( WireConfig_t *config ) cannam@162: { cannam@162: int c; cannam@162: PaError err = paNoError; cannam@162: PaStream *stream; cannam@162: PaStreamParameters inputParameters, outputParameters; cannam@162: cannam@162: printf("input %sinterleaved!\n", (config->isInputInterleaved ? " " : "NOT ") ); cannam@162: printf("output %sinterleaved!\n", (config->isOutputInterleaved ? " " : "NOT ") ); cannam@162: printf("input channels = %d\n", config->numInputChannels ); cannam@162: printf("output channels = %d\n", config->numOutputChannels ); cannam@162: printf("framesPerCallback = %d\n", config->framesPerCallback ); cannam@162: cannam@162: inputParameters.device = INPUT_DEVICE; /* default input device */ cannam@162: if (inputParameters.device == paNoDevice) { cannam@162: fprintf(stderr,"Error: No default input device.\n"); cannam@162: goto error; cannam@162: } cannam@162: inputParameters.channelCount = config->numInputChannels; cannam@162: inputParameters.sampleFormat = INPUT_FORMAT | (config->isInputInterleaved ? 0 : paNonInterleaved); cannam@162: inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency; cannam@162: inputParameters.hostApiSpecificStreamInfo = NULL; cannam@162: cannam@162: outputParameters.device = OUTPUT_DEVICE; /* default output device */ cannam@162: if (outputParameters.device == paNoDevice) { cannam@162: fprintf(stderr,"Error: No default output device.\n"); cannam@162: goto error; cannam@162: } cannam@162: outputParameters.channelCount = config->numOutputChannels; cannam@162: outputParameters.sampleFormat = OUTPUT_FORMAT | (config->isOutputInterleaved ? 0 : paNonInterleaved); cannam@162: outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency; cannam@162: outputParameters.hostApiSpecificStreamInfo = NULL; cannam@162: cannam@162: config->numInputUnderflows = 0; cannam@162: config->numInputOverflows = 0; cannam@162: config->numOutputUnderflows = 0; cannam@162: config->numOutputOverflows = 0; cannam@162: config->numPrimingOutputs = 0; cannam@162: config->numCallbacks = 0; cannam@162: cannam@162: err = Pa_OpenStream( cannam@162: &stream, cannam@162: &inputParameters, cannam@162: &outputParameters, cannam@162: SAMPLE_RATE, cannam@162: config->framesPerCallback, /* frames per buffer */ cannam@162: paClipOff, /* we won't output out of range samples so don't bother clipping them */ cannam@162: wireCallback, cannam@162: config ); cannam@162: if( err != paNoError ) goto error; cannam@162: cannam@162: err = Pa_StartStream( stream ); cannam@162: if( err != paNoError ) goto error; cannam@162: cannam@162: printf("Now recording and playing. - Hit ENTER for next configuration, or 'q' to quit.\n"); fflush(stdout); cannam@162: c = getchar(); cannam@162: cannam@162: printf("Closing stream.\n"); cannam@162: err = Pa_CloseStream( stream ); cannam@162: if( err != paNoError ) goto error; cannam@162: cannam@162: #define CHECK_FLAG_COUNT(member) \ cannam@162: if( config->member > 0 ) printf("FLAGS SET: " #member " = %d\n", config->member ); cannam@162: CHECK_FLAG_COUNT( numInputUnderflows ); cannam@162: CHECK_FLAG_COUNT( numInputOverflows ); cannam@162: CHECK_FLAG_COUNT( numOutputUnderflows ); cannam@162: CHECK_FLAG_COUNT( numOutputOverflows ); cannam@162: CHECK_FLAG_COUNT( numPrimingOutputs ); cannam@162: printf("number of callbacks = %d\n", config->numCallbacks ); cannam@162: cannam@162: if( c == 'q' ) return 1; cannam@162: cannam@162: error: cannam@162: return err; cannam@162: }