diff options
Diffstat (limited to 'portaudio/test/patest_read_write_wire.c')
| -rw-r--r-- | portaudio/test/patest_read_write_wire.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/portaudio/test/patest_read_write_wire.c b/portaudio/test/patest_read_write_wire.c new file mode 100644 index 0000000..965e3c4 --- /dev/null +++ b/portaudio/test/patest_read_write_wire.c @@ -0,0 +1,215 @@ +/** @file patest_read_write_wire.c
+ @ingroup test_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 <strings.h>
+#include "portaudio.h"
+
+/* #define SAMPLE_RATE (17932) // Test failure to open with this value. */
+#define SAMPLE_RATE (44100)
+#define FRAMES_PER_BUFFER (1024)
+#define NUM_CHANNELS (2)
+/* #define DITHER_FLAG (paDitherOff) */
+#define DITHER_FLAG (0) /**/
+
+/* Select sample format. */
+#if 0
+#define PA_SAMPLE_TYPE paFloat32
+#define SAMPLE_SIZE (4)
+#define SAMPLE_SILENCE (0.0f)
+#define CLEAR(a) bzero( (a), FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
+#define PRINTF_S_FORMAT "%.8f"
+#elif 0
+#define PA_SAMPLE_TYPE paInt16
+#define SAMPLE_SIZE (2)
+#define SAMPLE_SILENCE (0)
+#define CLEAR(a) bzero( (a), FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
+#define PRINTF_S_FORMAT "%d"
+#elif 1
+#define PA_SAMPLE_TYPE paInt24
+#define SAMPLE_SIZE (3)
+#define SAMPLE_SILENCE (0)
+#define CLEAR(a) bzero( (a), FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
+#define PRINTF_S_FORMAT "%d"
+#elif 0
+#define PA_SAMPLE_TYPE paInt8
+#define SAMPLE_SIZE (1)
+#define SAMPLE_SILENCE (0)
+#define CLEAR(a) bzero( (a), FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
+#define PRINTF_S_FORMAT "%d"
+#else
+#define PA_SAMPLE_TYPE paUInt8
+#define SAMPLE_SIZE (1)
+#define SAMPLE_SILENCE (128)
+#define CLEAR( a ) { \
+ int i; \
+ for( i=0; i<FRAMES_PER_BUFFER*NUM_CHANNELS; i++ ) \
+ ((unsigned char *)a)[i] = (SAMPLE_SILENCE); \
+}
+#define PRINTF_S_FORMAT "%d"
+#endif
+
+
+/*******************************************************************/
+int main(void);
+int main(void)
+{
+ PaStreamParameters inputParameters, outputParameters;
+ PaStream *stream = NULL;
+ PaError err;
+ char *sampleBlock;
+ int i;
+ int numBytes;
+
+
+ printf("patest_read_write_wire.c\n"); fflush(stdout);
+
+ numBytes = FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE ;
+ sampleBlock = (char *) malloc( numBytes );
+ if( sampleBlock == NULL )
+ {
+ printf("Could not allocate record array.\n");
+ exit(1);
+ }
+ CLEAR( sampleBlock );
+
+ err = Pa_Initialize();
+ if( err != paNoError ) goto error;
+
+ inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
+ printf( "Input device # %d.\n", inputParameters.device );
+ printf( "Input LL: %g s\n", Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency );
+ printf( "Input HL: %g s\n", Pa_GetDeviceInfo( inputParameters.device )->defaultHighInputLatency );
+ inputParameters.channelCount = NUM_CHANNELS;
+ inputParameters.sampleFormat = PA_SAMPLE_TYPE;
+ inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultHighInputLatency ;
+ inputParameters.hostApiSpecificStreamInfo = NULL;
+
+ outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
+ printf( "Output device # %d.\n", outputParameters.device );
+ printf( "Output LL: %g s\n", Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency );
+ printf( "Output HL: %g s\n", Pa_GetDeviceInfo( outputParameters.device )->defaultHighOutputLatency );
+ outputParameters.channelCount = NUM_CHANNELS;
+ outputParameters.sampleFormat = PA_SAMPLE_TYPE;
+ outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->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 error;
+
+ err = Pa_StartStream( stream );
+ if( err != paNoError ) goto error;
+ printf("Wire on. Will run one minute.\n"); fflush(stdout);
+
+ for( i=0; i<(60*SAMPLE_RATE)/FRAMES_PER_BUFFER; ++i )
+ {
+ err = Pa_WriteStream( stream, sampleBlock, FRAMES_PER_BUFFER );
+ if( err ) goto xrun;
+ err = Pa_ReadStream( stream, sampleBlock, FRAMES_PER_BUFFER );
+ if( err ) goto xrun;
+ }
+ err = Pa_StopStream( stream );
+ if( err != paNoError ) goto error;
+
+ CLEAR( sampleBlock );
+
+ err = Pa_StartStream( stream );
+ if( err != paNoError ) goto error;
+ printf("Wire on. Interrupt to stop.\n"); fflush(stdout);
+
+ while( 1 )
+ {
+ err = Pa_WriteStream( stream, sampleBlock, FRAMES_PER_BUFFER );
+ if( err ) goto xrun;
+ err = Pa_ReadStream( stream, sampleBlock, FRAMES_PER_BUFFER );
+ if( err ) goto xrun;
+ }
+ err = Pa_StopStream( stream );
+ if( err != paNoError ) goto error;
+
+ Pa_CloseStream( stream );
+
+ free( sampleBlock );
+
+ Pa_Terminate();
+ return 0;
+
+xrun:
+ 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;
+
+error:
+ if( stream ) {
+ Pa_AbortStream( stream );
+ Pa_CloseStream( stream );
+ }
+ free( sampleBlock );
+ 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 ) );
+ return -1;
+}
+
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