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authorGuenter Geiger <ggeiger@users.sourceforge.net>2003-05-09 16:04:00 +0000
committerGuenter Geiger <ggeiger@users.sourceforge.net>2003-05-09 16:04:00 +0000
commit9c0e19a3be2288db79e2502e5fa450c3e20a668d (patch)
treeca97ce615e037a533304fc4660dcf372ca3b9cd6 /pd/portaudio/pa_tests/debug_srate.c
parentef50dd62804d54af7da18d8bd8413c0dccd729b8 (diff)
This commit was generated by cvs2svn to compensate for changes in r610,
which included commits to RCS files with non-trunk default branches. svn path=/trunk/; revision=611
Diffstat (limited to 'pd/portaudio/pa_tests/debug_srate.c')
-rw-r--r--pd/portaudio/pa_tests/debug_srate.c265
1 files changed, 265 insertions, 0 deletions
diff --git a/pd/portaudio/pa_tests/debug_srate.c b/pd/portaudio/pa_tests/debug_srate.c
new file mode 100644
index 00000000..b3e3b70f
--- /dev/null
+++ b/pd/portaudio/pa_tests/debug_srate.c
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+/*
+ * $Id: debug_srate.c,v 1.1.1.1 2003-05-09 16:03:56 ggeiger Exp $
+ * debug_record_reuse.c
+ * Record input into an array.
+ * Save array to a file.
+ * Based on patest_record.c but with various ugly debug hacks thrown in.
+ * Loop twice and reuse same streams.
+ *
+ * Author: Phil Burk http://www.softsynth.com
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * 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.
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <memory.h>
+#include "portaudio.h"
+
+#define EWS88MT_12_REC (1)
+#define EWS88MT_12_PLAY (10)
+#define SBLIVE_REC (2)
+#define SBLIVE_PLAY (11)
+
+#if 0
+#define INPUT_DEVICE_ID Pa_GetDefaultInputDeviceID()
+#define OUTPUT_DEVICE_ID Pa_GetDefaultOutputDeviceID()
+#else
+#define INPUT_DEVICE_ID (EWS88MT_12_REC)
+#define OUTPUT_DEVICE_ID (SBLIVE_PLAY)
+#endif
+
+#define INPUT_SAMPLE_RATE (22050.0)
+#define OUTPUT_SAMPLE_RATE (22050.0)
+#define NUM_SECONDS (4)
+#define SLEEP_DUR_MSEC (1000)
+#define FRAMES_PER_BUFFER (64)
+#define NUM_REC_BUFS (0)
+#define SAMPLES_PER_FRAME (2)
+
+#define PA_SAMPLE_TYPE paInt16
+typedef short SAMPLE;
+
+typedef struct
+{
+ long frameIndex; /* Index into sample array. */
+}
+paTestData;
+
+/* This routine will be called by the PortAudio engine when audio is needed.
+** It may be called at interrupt level on some machines so don't do anything
+** that could mess up the system like calling malloc() or free().
+*/
+static int recordCallback( void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ PaTimestamp outTime, void *userData )
+{
+ paTestData *data = (paTestData *) userData;
+ (void) outputBuffer; /* Prevent unused variable warnings. */
+ (void) outTime;
+
+ if( inputBuffer != NULL )
+ {
+ data->frameIndex += framesPerBuffer;
+ }
+ return 0;
+}
+
+/* This routine will be called by the PortAudio engine when audio is needed.
+** It may be called at interrupt level on some machines so don't do anything
+** that could mess up the system like calling malloc() or free().
+*/
+static int playCallback( void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ PaTimestamp outTime, void *userData )
+{
+ paTestData *data = (paTestData *) userData;
+ (void) inputBuffer; /* Prevent unused variable warnings. */
+ (void) outTime;
+
+ if( outputBuffer != NULL )
+ {
+ data->frameIndex += framesPerBuffer;
+ }
+ return 0;
+}
+
+/****************************************************************/
+PaError MeasureStreamRate( PortAudioStream *stream, paTestData *dataPtr, double *ratePtr )
+{
+ PaError err;
+ int i;
+ int totalFrames = 0;
+ int totalMSec = 0;
+
+ dataPtr->frameIndex = 0;
+
+ err = Pa_StartStream( stream );
+ if( err != paNoError ) goto error;
+
+ for( i=0; i<(NUM_SECONDS*1000/SLEEP_DUR_MSEC); i++ )
+ {
+ int delta, endIndex;
+
+ int startIndex = dataPtr->frameIndex;
+ Pa_Sleep(SLEEP_DUR_MSEC);
+ endIndex = dataPtr->frameIndex;
+
+ delta = endIndex - startIndex;
+ totalFrames += delta;
+ totalMSec += SLEEP_DUR_MSEC;
+
+ printf("index = %d, delta = %d\n", endIndex, delta ); fflush(stdout);
+ }
+
+ err = Pa_StopStream( stream );
+ if( err != paNoError ) goto error;
+
+ *ratePtr = (totalFrames * 1000.0) / totalMSec;
+
+error:
+ return err;
+}
+
+void ReportRate( double measuredRate, double expectedRate )
+{
+ double error;
+
+ error = (measuredRate - expectedRate) / expectedRate;
+ error = (error < 0 ) ? -error : error;
+
+ printf("Measured rate = %6.1f, expected rate = %6.1f\n",
+ measuredRate, expectedRate );
+ if( error > 0.1 )
+ {
+ printf("ERROR: unexpected rate! --------------------- ERROR!\n");
+ }
+ else
+ {
+ printf("SUCCESS: rate within tolerance!\n");
+ }
+}
+
+/*******************************************************************/
+int main(void);
+int main(void)
+{
+ PaError err;
+ paTestData data = { 0 };
+ long i;
+ double rate;
+ const PaDeviceInfo *pdi;
+
+ PortAudioStream *outputStream;
+ PortAudioStream *inputStream;
+
+ err = Pa_Initialize();
+ if( err != paNoError ) goto error;
+
+
+ pdi = Pa_GetDeviceInfo( INPUT_DEVICE_ID );
+ printf("Input device = %s\n", pdi->name );
+ pdi = Pa_GetDeviceInfo( OUTPUT_DEVICE_ID );
+ printf("Output device = %s\n", pdi->name );
+
+/* Open input stream. */
+ err = Pa_OpenStream(
+ &inputStream,
+ INPUT_DEVICE_ID,
+ SAMPLES_PER_FRAME, /* stereo input */
+ PA_SAMPLE_TYPE,
+ NULL,
+ paNoDevice,
+ 0,
+ PA_SAMPLE_TYPE,
+ NULL,
+ INPUT_SAMPLE_RATE,
+ FRAMES_PER_BUFFER, /* frames per buffer */
+ NUM_REC_BUFS, /* number of buffers, if zero then use default minimum */
+ paClipOff, /* we won't output out of range samples so don't bother clipping them */
+ recordCallback,
+ &data );
+ if( err != paNoError ) goto error;
+
+ err = Pa_OpenStream(
+ &outputStream,
+ paNoDevice,
+ 0, /* NO input */
+ PA_SAMPLE_TYPE,
+ NULL,
+ OUTPUT_DEVICE_ID,
+ SAMPLES_PER_FRAME, /* stereo output */
+ PA_SAMPLE_TYPE,
+ NULL,
+ OUTPUT_SAMPLE_RATE,
+ FRAMES_PER_BUFFER, /* frames per buffer */
+ 0, /* number of buffers, if zero then use default minimum */
+ paClipOff, /* we won't output out of range samples so don't bother clipping them */
+ playCallback,
+ &data );
+ if( err != paNoError ) goto error;
+
+/* Record and playback multiple times. */
+ for( i=0; i<2; i++ )
+ {
+ printf("Measuring INPUT ------------------------- \n");
+ err = MeasureStreamRate( inputStream, &data, &rate );
+ if( err != paNoError ) goto error;
+ ReportRate( rate, INPUT_SAMPLE_RATE );
+
+ printf("Measuring OUTPUT ------------------------- \n");
+ err = MeasureStreamRate( outputStream, &data, &rate );
+ if( err != paNoError ) goto error;
+ ReportRate( rate, OUTPUT_SAMPLE_RATE );
+ }
+
+/* Clean up. */
+ err = Pa_CloseStream( inputStream );
+ if( err != paNoError ) goto error;
+
+ err = Pa_CloseStream( outputStream );
+ if( err != paNoError ) goto error;
+
+ if( err != paNoError ) goto error;
+
+ Pa_Terminate();
+
+ printf("Test complete.\n"); fflush(stdout);
+ return 0;
+
+error:
+ 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 ) );
+ if( err == paHostError )
+ {
+ fprintf( stderr, "Host Error number: %d\n", Pa_GetHostError() );
+ }
+ return -1;
+}