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authorsanine <sanine.not@pm.me>2022-08-25 14:54:53 -0500
committersanine <sanine.not@pm.me>2022-08-25 14:54:53 -0500
commit37c97e345d12f95dde44e1d1a4c2f2aadd4615bc (patch)
treee1bb25bc855883062bdd7847ff2c04290f71c840 /portaudio/pablio/test_rw.c
parent5634c7b04da619669f2f29f6798c03982be05180 (diff)
add initial structure
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-rw-r--r--portaudio/pablio/test_rw.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/portaudio/pablio/test_rw.c b/portaudio/pablio/test_rw.c
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+/*
+ * $Id$
+ * test_rw.c
+ * Read input from one stream and write it to another.
+ *
+ * Author: Phil Burk, http://www.softsynth.com/portaudio/
+ *
+ * This program uses PABLIO, the Portable Audio Blocking I/O Library.
+ * PABLIO is built on top of PortAudio, the 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 "pablio.h"
+
+/*
+** Note that many of the older ISA sound cards on PCs do NOT support
+** full duplex audio (simultaneous record and playback).
+** And some only support full duplex at lower sample rates.
+*/
+#define SAMPLE_RATE (44100)
+#define NUM_SECONDS (5)
+#define SAMPLES_PER_FRAME (2)
+#define FRAMES_PER_BLOCK (64)
+
+/* Select whether we will use floats or shorts. */
+#if 1
+#define SAMPLE_TYPE paFloat32
+typedef float SAMPLE;
+#else
+#define SAMPLE_TYPE paInt16
+typedef short SAMPLE;
+#endif
+
+/*******************************************************************/
+int main(void);
+int main(void)
+{
+ int i;
+ SAMPLE samples[SAMPLES_PER_FRAME * FRAMES_PER_BLOCK];
+ PaError err;
+ PABLIO_Stream *aStream;
+
+ printf("Full duplex sound test using PortAudio and RingBuffers\n");
+ fflush(stdout);
+
+ /* Open simplified blocking I/O layer on top of PortAudio. */
+ err = OpenAudioStream( &aStream, SAMPLE_RATE, SAMPLE_TYPE,
+ (PABLIO_READ_WRITE | PABLIO_STEREO) );
+ if( err != paNoError ) goto error;
+
+ /* Process samples in the foreground. */
+ for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i += FRAMES_PER_BLOCK )
+ {
+ /* Read one block of data into sample array from audio input. */
+ ReadAudioStream( aStream, samples, FRAMES_PER_BLOCK );
+ /* Write that same block of data to output. */
+ WriteAudioStream( aStream, samples, FRAMES_PER_BLOCK );
+ }
+
+ CloseAudioStream( aStream );
+
+ printf("Full duplex sound test complete.\n" );
+ fflush(stdout);
+ return 0;
+
+error:
+ 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;
+}