/** @file pa_devs.c
- @ingroup examples_src
+ @ingroup examples_src
@brief List available devices, including device information.
- @author Phil Burk http://www.softsynth.com
+ @author Phil Burk http://www.softsynth.com
@note Define PA_USE_ASIO=0 to compile this code on Windows without
ASIO support.
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
PaStreamParameters inputParameters, outputParameters;
PaError err;
-
+
err = Pa_Initialize();
if( err != paNoError )
{
printf( "ERROR: Pa_Initialize returned 0x%x\n", err );
goto error;
}
-
+
printf( "PortAudio version: 0x%08X\n", Pa_GetVersion());
printf( "Version text: '%s'\n", Pa_GetVersionInfo()->versionText );
err = numDevices;
goto error;
}
-
+
printf( "Number of devices = %d\n", numDevices );
for( i=0; i<numDevices; i++ )
{
deviceInfo = Pa_GetDeviceInfo( i );
printf( "--------------------------------------- device #%d\n", i );
-
+
/* Mark global and API specific default devices */
defaultDisplayed = 0;
if( i == Pa_GetDefaultInputDevice() )
printf( "[ Default %s Input", hostInfo->name );
defaultDisplayed = 1;
}
-
+
if( i == Pa_GetDefaultOutputDevice() )
{
printf( (defaultDisplayed ? "," : "[") );
else if( i == Pa_GetHostApiInfo( deviceInfo->hostApi )->defaultOutputDevice )
{
const PaHostApiInfo *hostInfo = Pa_GetHostApiInfo( deviceInfo->hostApi );
- printf( (defaultDisplayed ? "," : "[") );
+ printf( (defaultDisplayed ? "," : "[") );
printf( " Default %s Output", hostInfo->name );
defaultDisplayed = 1;
}
long minLatency, maxLatency, preferredLatency, granularity;
err = PaAsio_GetAvailableLatencyValues( i,
- &minLatency, &maxLatency, &preferredLatency, &granularity );
+ &minLatency, &maxLatency, &preferredLatency, &granularity );
printf( "ASIO minimum buffer size = %ld\n", minLatency );
printf( "ASIO maximum buffer size = %ld\n", maxLatency );
inputParameters.sampleFormat = paInt16;
inputParameters.suggestedLatency = 0; /* ignored by Pa_IsFormatSupported() */
inputParameters.hostApiSpecificStreamInfo = NULL;
-
+
outputParameters.device = i;
outputParameters.channelCount = deviceInfo->maxOutputChannels;
outputParameters.sampleFormat = paInt16;
/** @file pa_fuzz.c
- @ingroup examples_src
+ @ingroup examples_src
@brief Distort input like a fuzz box.
- @author Phil Burk http://www.softsynth.com
+ @author Phil Burk http://www.softsynth.com
*/
/*
* $Id$
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
*out++ = *in++; /* right - clean */
}
}
-
+
return paContinue;
}
inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
if (inputParameters.device == paNoDevice) {
- fprintf(stderr,"Error: No default input device.\n");
- goto error;
+ fprintf(stderr,"Error: No default input device.\n");
+ goto error;
}
inputParameters.channelCount = 2; /* stereo input */
inputParameters.sampleFormat = PA_SAMPLE_TYPE;
outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
if (outputParameters.device == paNoDevice) {
- fprintf(stderr,"Error: No default output device.\n");
- goto error;
+ fprintf(stderr,"Error: No default output device.\n");
+ goto error;
}
outputParameters.channelCount = 2; /* stereo output */
outputParameters.sampleFormat = PA_SAMPLE_TYPE;
/** @file paex_mono_asio_channel_select.c
- @ingroup examples_src
- @brief Play a monophonic sine wave on a specific ASIO channel.
- @author Ross Bencina <rossb@audiomulch.com>
-
@author Phil Burk <philburk@softsynth.com>
+ @ingroup examples_src
+ @brief Play a monophonic sine wave on a specific ASIO channel.
+ @author Ross Bencina <rossb@audiomulch.com>
+ @author Phil Burk <philburk@softsynth.com>
*/
/*
* $Id$
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
data.sine[i] = (float) (AMPLITUDE * sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. ));
}
data.phase = 0;
-
+
err = Pa_Initialize();
if( err != paNoError ) goto error;
outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
- /* Use an ASIO specific structure. WARNING - this is not portable. */
+ /* Use an ASIO specific structure. WARNING - this is not portable. */
asioOutputInfo.size = sizeof(PaAsioStreamInfo);
asioOutputInfo.hostApiType = paASIO;
asioOutputInfo.version = 1;
err = Pa_StartStream( stream );
if( err != paNoError ) goto error;
-
+
printf("Play for %d seconds.\n", NUM_SECONDS ); fflush(stdout);
Pa_Sleep( NUM_SECONDS * 1000 );
err = Pa_StopStream( stream );
if( err != paNoError ) goto error;
-
+
err = Pa_CloseStream( stream );
if( err != paNoError ) goto error;
-
+
Pa_Terminate();
printf("Test finished.\n");
return err;
-/** @file paex_ocean_shore.c
- @ingroup examples_src
- @brief Generate Pink Noise using Gardner method, and make "waves". Provides an example of how to
+/** @file paex_ocean_shore.c
+ @ingroup examples_src
+ @brief Generate Pink Noise using Gardner method, and make "waves". Provides an example of how to
post stuff to/from the audio callback using lock-free FIFOs implemented by the PA ringbuffer.
- Optimization suggested by James McCartney uses a tree
- to select which random value to replace.
+ Optimization suggested by James McCartney uses a tree
+ to select which random value to replace.
<pre>
- x x x x x x x x x x x x x x x x
- x x x x x x x x
- x x x x
- x x
- x
-</pre>
- Tree is generated by counting trailing zeros in an increasing index.
- When the index is zero, no random number is selected.
-
- @author Phil Burk http://www.softsynth.com
+ x x x x x x x x x x x x x x x x
+ x x x x x x x x
+ x x x x
+ x x
+ x
+</pre>
+ Tree is generated by counting trailing zeros in an increasing index.
+ When the index is zero, no random number is selected.
+
+ @author Phil Burk http://www.softsynth.com
Robert Bielik
*/
/*
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
}
PinkNoise;
-typedef struct
+typedef struct
{
float bq_b0;
float bq_b1;
targetLevel = wave->wave_envelope_max_level;
}
/* Calculate lowpass biquad coeffs
-
+
alpha = sin(w0)/(2*Q)
b0 = (1 - cos(w0))/2
static int patestCallback(const void* inputBuffer,
void* outputBuffer,
unsigned long framesPerBuffer,
- const PaStreamCallbackTimeInfo* timeInfo,
- PaStreamCallbackFlags statusFlags,
+ const PaStreamCallbackTimeInfo* timeInfo,
+ PaStreamCallbackFlags statusFlags,
void* userData)
{
int i;
/* Open a stereo PortAudio stream so we can hear the result. */
outputParameters.device = Pa_GetDefaultOutputDevice(); /* Take the default output device. */
if (outputParameters.device == paNoDevice) {
- fprintf(stderr,"Error: No default output device.\n");
- goto error;
+ fprintf(stderr,"Error: No default output device.\n");
+ goto error;
}
outputParameters.channelCount = 2; /* Stereo output, most likely supported. */
outputParameters.hostApiSpecificStreamInfo = NULL;
{
PaUtil_FreeMemory(data.rBufFromRTData);
}
-
+
Pa_Sleep(1000);
Pa_Terminate();
/** @file paex_pink.c
- @ingroup examples_src
- @brief Generate Pink Noise using Gardner method.
+ @ingroup examples_src
+ @brief Generate Pink Noise using Gardner method.
- Optimization suggested by James McCartney uses a tree
- to select which random value to replace.
+ Optimization suggested by James McCartney uses a tree
+ to select which random value to replace.
<pre>
- x x x x x x x x x x x x x x x x
- x x x x x x x x
- x x x x
- x x
- x
-</pre>
- Tree is generated by counting trailing zeros in an increasing index.
- When the index is zero, no random number is selected.
+ x x x x x x x x x x x x x x x x
+ x x x x x x x x
+ x x x x
+ x x
+ x
+</pre>
+ Tree is generated by counting trailing zeros in an increasing index.
+ When the index is zero, no random number is selected.
- @author Phil Burk http://www.softsynth.com
+ @author Phil Burk http://www.softsynth.com
*/
/*
* $Id$
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
static int patestCallback(const void* inputBuffer,
void* outputBuffer,
unsigned long framesPerBuffer,
- const PaStreamCallbackTimeInfo* timeInfo,
- PaStreamCallbackFlags statusFlags,
+ const PaStreamCallbackTimeInfo* timeInfo,
+ PaStreamCallbackFlags statusFlags,
void* userData)
{
int finished;
int totalSamps;
static const double SR = 44100.0;
static const int FPB = 2048; /* Frames per buffer: 46 ms buffers. */
-
+
/* Initialize two pink noise signals with different numbers of rows. */
InitializePinkNoise( &data.leftPink, 12 );
InitializePinkNoise( &data.rightPink, 16 );
/* Open a stereo PortAudio stream so we can hear the result. */
outputParameters.device = Pa_GetDefaultOutputDevice(); /* Take the default output device. */
if (outputParameters.device == paNoDevice) {
- fprintf(stderr,"Error: No default output device.\n");
- goto error;
+ fprintf(stderr,"Error: No default output device.\n");
+ goto error;
}
outputParameters.channelCount = 2; /* Stereo output, most likely supported. */
outputParameters.hostApiSpecificStreamInfo = NULL;
/** @file paex_read_write_wire.c
- @ingroup examples_src
- @brief Tests full duplex blocking I/O by passing input straight to output.
- @author Bjorn Roche. XO Audio LLC for Z-Systems Engineering.
+ @ingroup examples_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
*/
xrun:
printf("err = %d\n", err); fflush(stdout);
if( stream ) {
- Pa_AbortStream( stream );
- Pa_CloseStream( stream );
+ Pa_AbortStream( stream );
+ Pa_CloseStream( stream );
}
free( sampleBlock );
Pa_Terminate();
if( err & paInputOverflow )
- fprintf( stderr, "Input Overflow.\n" );
+ fprintf( stderr, "Input Overflow.\n" );
if( err & paOutputUnderflow )
- fprintf( stderr, "Output Underflow.\n" );
+ fprintf( stderr, "Output Underflow.\n" );
return -2;
error1:
free( sampleBlock );
error2:
if( stream ) {
- Pa_AbortStream( stream );
- Pa_CloseStream( stream );
+ Pa_AbortStream( stream );
+ Pa_CloseStream( stream );
}
Pa_Terminate();
fprintf( stderr, "An error occurred while using the portaudio stream\n" );
/** @file paex_record.c
- @ingroup examples_src
- @brief Record input into an array; Save array to a file; Playback recorded data.
- @author Phil Burk http://www.softsynth.com
+ @ingroup examples_src
+ @brief Record input into an array; Save array to a file; Playback recorded data.
+ @author Phil Burk http://www.softsynth.com
*/
/*
* $Id$
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
{
err = Pa_StartStream( stream );
if( err != paNoError ) goto done;
-
+
printf("Waiting for playback to finish.\n"); fflush(stdout);
while( ( err = Pa_IsStreamActive( stream ) ) == 1 ) Pa_Sleep(100);
if( err < 0 ) goto done;
-
+
err = Pa_CloseStream( stream );
if( err != paNoError ) goto done;
-
+
printf("Done.\n"); fflush(stdout);
}
/** @file paex_record_file.c
- @ingroup examples_src
- @brief Record input into a file, then playback recorded data from file (Windows only at the moment)
- @author Robert Bielik
+ @ingroup examples_src
+ @brief Record input into a file, then playback recorded data from file (Windows only at the moment)
+ @author Robert Bielik
*/
/*
* $Id: paex_record_file.c 1752 2011-09-08 03:21:55Z philburk $
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
}
if( err < 0 ) goto done;
}
-
+
err = Pa_CloseStream( stream );
if( err != paNoError ) goto done;
fclose(data.file);
-
+
printf("Done.\n"); fflush(stdout);
}
/** @file paex_saw.c
- @ingroup examples_src
- @brief Play a simple (aliasing) sawtooth wave.
- @author Phil Burk http://www.softsynth.com
+ @ingroup examples_src
+ @brief Play a simple (aliasing) sawtooth wave.
+ @author Phil Burk http://www.softsynth.com
*/
/*
* $Id$
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
{
PaStream *stream;
PaError err;
-
+
printf("PortAudio Test: output sawtooth wave.\n");
/* Initialize our data for use by callback. */
data.left_phase = data.right_phase = 0.0;
/* Initialize library before making any other calls. */
err = Pa_Initialize();
if( err != paNoError ) goto error;
-
+
/* Open an audio I/O stream. */
err = Pa_OpenDefaultStream( &stream,
0, /* no input channels */
/** @file paex_sine.c
- @ingroup examples_src
- @brief Play a sine wave for several seconds.
- @author Ross Bencina <rossb@audiomulch.com>
+ @ingroup examples_src
+ @brief Play a sine wave for several seconds.
+ @author Ross Bencina <rossb@audiomulch.com>
@author Phil Burk <philburk@softsynth.com>
*/
/*
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * 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>
(void) timeInfo; /* Prevent unused variable warnings. */
(void) statusFlags;
(void) inputBuffer;
-
+
for( i=0; i<framesPerBuffer; i++ )
{
*out++ = data->sine[data->left_phase]; /* left */
data->right_phase += 3; /* higher pitch so we can distinguish left and right. */
if( data->right_phase >= TABLE_SIZE ) data->right_phase -= TABLE_SIZE;
}
-
+
return paContinue;
}
*/
static void StreamFinished( void* userData )
{
- paTestData *data = (paTestData *) userData;
- printf( "Stream Completed: %s\n", data->message );
+ paTestData *data = (paTestData *) userData;
+ printf( "Stream Completed: %s\n", data->message );
}
/*******************************************************************/
data.sine[i] = (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. );
}
data.left_phase = data.right_phase = 0;
-
+
err = Pa_Initialize();
if( err != paNoError ) goto error;
outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
if (outputParameters.device == paNoDevice) {
- fprintf(stderr,"Error: No default output device.\n");
- goto error;
+ fprintf(stderr,"Error: No default output device.\n");
+ goto error;
}
outputParameters.channelCount = 2; /* stereo output */
outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
Pa_Terminate();
printf("Test finished.\n");
-
+
return err;
error:
Pa_Terminate();
/** @file paex_sine.c
- @ingroup examples_src
- @brief Play a sine wave for several seconds.
- @author Ross Bencina <rossb@audiomulch.com>
+ @ingroup examples_src
+ @brief Play a sine wave for several seconds.
+ @author Ross Bencina <rossb@audiomulch.com>
@author Phil Burk <philburk@softsynth.com>
*/
/*
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * 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>
PaStreamCallbackFlags statusFlags,
void *userData )
{
- /* Here we cast userData to Sine* type so we can call the instance method paCallbackMethod, we can do that since
+ /* Here we cast userData to Sine* type so we can call the instance method paCallbackMethod, we can do that since
we called Pa_OpenStream with 'this' for userData */
return ((Sine*)userData)->paCallbackMethod(inputBuffer, outputBuffer,
framesPerBuffer,
Sine sine;
printf("PortAudio Test: output sine wave. SR = %d, BufSize = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER);
-
+
ScopedPaHandler paInit;
if( paInit.result() != paNoError ) goto error;
/** @file paex_wmme_ac3.c
- @ingroup examples_src
- @brief Use WMME-specific interface to send raw AC3 data to a S/PDIF output.
- @author Ross Bencina <rossb@audiomulch.com>
+ @ingroup examples_src
+ @brief Use WMME-specific interface to send raw AC3 data to a S/PDIF output.
+ @author Ross Bencina <rossb@audiomulch.com>
*/
/*
* $Id: $
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
(void) inputBuffer;
/* stream out contents of data->buffer looping at end */
-
+
for( i=0; i<framesPerBuffer; i++ )
{
- for( j = 0; j < CHANNEL_COUNT; ++j ){
+ for( j = 0; j < CHANNEL_COUNT; ++j ){
*out++ = data->buffer[ data->playbackIndex++ ];
if( data->playbackIndex >= data->bufferSampleCount )
data->playbackIndex = 0; /* loop at end of buffer */
- }
- }
-
+ }
+ }
+
return paContinue;
}
printf("usage: patest_wmme_ac3 fileName [paDeviceIndex]\n");
printf("**IMPORTANT*** The provided file must include the spdif preamble at the start of every AC-3 frame. Using a normal ac3 file won't work.\n");
- printf("PortAudio Test: output a raw spdif ac3 stream. SR = %d, BufSize = %d, Chans = %d\n",
+ printf("PortAudio Test: output a raw spdif ac3 stream. SR = %d, BufSize = %d, Chans = %d\n",
SAMPLE_RATE, FRAMES_PER_BUFFER, CHANNEL_COUNT);
-
+
if( argc >= 2 )
fileName = argv[1];
err = Pa_Initialize();
if( err != paNoError ) goto error;
- deviceIndex = Pa_GetHostApiInfo( Pa_HostApiTypeIdToHostApiIndex( paMME ) )->defaultOutputDevice;
- if( argc >= 3 ){
- sscanf( argv[1], "%d", &deviceIndex );
- }
+ deviceIndex = Pa_GetHostApiInfo( Pa_HostApiTypeIdToHostApiIndex( paMME ) )->defaultOutputDevice;
+ if( argc >= 3 ){
+ sscanf( argv[1], "%d", &deviceIndex );
+ }
+
+ printf( "using device id %d (%s)\n", deviceIndex, Pa_GetDeviceInfo(deviceIndex)->name );
- printf( "using device id %d (%s)\n", deviceIndex, Pa_GetDeviceInfo(deviceIndex)->name );
-
outputParameters.device = deviceIndex;
outputParameters.channelCount = CHANNEL_COUNT;
outputParameters.sampleFormat = paInt16; /* IMPORTANT must use paInt16 for WMME AC3 */
outputParameters.hostApiSpecificStreamInfo = NULL;
wmmeStreamInfo.size = sizeof(PaWinMmeStreamInfo);
- wmmeStreamInfo.hostApiType = paMME;
+ wmmeStreamInfo.hostApiType = paMME;
wmmeStreamInfo.version = 1;
wmmeStreamInfo.flags = paWinMmeWaveFormatDolbyAc3Spdif;
outputParameters.hostApiSpecificStreamInfo = &wmmeStreamInfo;
- if( Pa_IsFormatSupported( 0, &outputParameters, SAMPLE_RATE ) == paFormatIsSupported ){
- printf( "Pa_IsFormatSupported reports device will support %d channels.\n", CHANNEL_COUNT );
- }else{
- printf( "Pa_IsFormatSupported reports device will not support %d channels.\n", CHANNEL_COUNT );
- }
+ if( Pa_IsFormatSupported( 0, &outputParameters, SAMPLE_RATE ) == paFormatIsSupported ){
+ printf( "Pa_IsFormatSupported reports device will support %d channels.\n", CHANNEL_COUNT );
+ }else{
+ printf( "Pa_IsFormatSupported reports device will not support %d channels.\n", CHANNEL_COUNT );
+ }
err = Pa_OpenStream(
&stream,
Pa_Terminate();
free( data.buffer );
printf("Test finished.\n");
-
+
return err;
error:
Pa_Terminate();
/** @file paex_wmme_surround.c
- @ingroup examples_src
- @brief Use WMME-specific channelMask to request 5.1 surround sound output.
- @author Ross Bencina <rossb@audiomulch.com>
+ @ingroup examples_src
+ @brief Use WMME-specific channelMask to request 5.1 surround sound output.
+ @author Ross Bencina <rossb@audiomulch.com>
*/
/*
* $Id: $
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
typedef struct
{
float sine[TABLE_SIZE];
- int phase;
- int currentChannel;
- int cycleCount;
+ int phase;
+ int currentChannel;
+ int cycleCount;
}
paTestData;
(void) timeInfo; /* Prevent unused variable warnings. */
(void) statusFlags;
(void) inputBuffer;
-
+
for( i=0; i<framesPerBuffer; i++ )
{
- for( j = 0; j < CHANNEL_COUNT; ++j ){
- if( j == data->currentChannel && data->cycleCount < 4410 ){
- *out++ = data->sine[data->phase];
- data->phase += 1 + j; // play each channel at a different pitch so they can be distinguished
- if( data->phase >= TABLE_SIZE ){
- data->phase -= TABLE_SIZE;
- }
- }else{
- *out++ = 0;
- }
- }
-
- data->cycleCount++;
- if( data->cycleCount > 44100 ){
- data->cycleCount = 0;
-
- ++data->currentChannel;
- if( data->currentChannel >= CHANNEL_COUNT )
- data->currentChannel -= CHANNEL_COUNT;
- }
- }
-
+ for( j = 0; j < CHANNEL_COUNT; ++j ){
+ if( j == data->currentChannel && data->cycleCount < 4410 ){
+ *out++ = data->sine[data->phase];
+ data->phase += 1 + j; // play each channel at a different pitch so they can be distinguished
+ if( data->phase >= TABLE_SIZE ){
+ data->phase -= TABLE_SIZE;
+ }
+ }else{
+ *out++ = 0;
+ }
+ }
+
+ data->cycleCount++;
+ if( data->cycleCount > 44100 ){
+ data->cycleCount = 0;
+
+ ++data->currentChannel;
+ if( data->currentChannel >= CHANNEL_COUNT )
+ data->currentChannel -= CHANNEL_COUNT;
+ }
+ }
+
return paContinue;
}
err = Pa_Initialize();
if( err != paNoError ) goto error;
- deviceIndex = Pa_GetHostApiInfo( Pa_HostApiTypeIdToHostApiIndex( paMME ) )->defaultOutputDevice;
- if( argc == 2 ){
- sscanf( argv[1], "%d", &deviceIndex );
- }
+ deviceIndex = Pa_GetHostApiInfo( Pa_HostApiTypeIdToHostApiIndex( paMME ) )->defaultOutputDevice;
+ if( argc == 2 ){
+ sscanf( argv[1], "%d", &deviceIndex );
+ }
- printf( "using device id %d (%s)\n", deviceIndex, Pa_GetDeviceInfo(deviceIndex)->name );
+ printf( "using device id %d (%s)\n", deviceIndex, Pa_GetDeviceInfo(deviceIndex)->name );
/* initialise sinusoidal wavetable */
for( i=0; i<TABLE_SIZE; i++ )
data.sine[i] = (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. );
}
- data.phase = 0;
- data.currentChannel = 0;
- data.cycleCount = 0;
+ data.phase = 0;
+ data.currentChannel = 0;
+ data.cycleCount = 0;
outputParameters.device = deviceIndex;
outputParameters.channelCount = CHANNEL_COUNT;
output. But if you want to be sure which channel mask PortAudio will use
then you should supply one */
wmmeStreamInfo.size = sizeof(PaWinMmeStreamInfo);
- wmmeStreamInfo.hostApiType = paMME;
+ wmmeStreamInfo.hostApiType = paMME;
wmmeStreamInfo.version = 1;
wmmeStreamInfo.flags = paWinMmeUseChannelMask;
wmmeStreamInfo.channelMask = PAWIN_SPEAKER_5POINT1; /* request 5.1 output format */
outputParameters.hostApiSpecificStreamInfo = &wmmeStreamInfo;
- if( Pa_IsFormatSupported( 0, &outputParameters, SAMPLE_RATE ) == paFormatIsSupported ){
- printf( "Pa_IsFormatSupported reports device will support %d channels.\n", CHANNEL_COUNT );
- }else{
- printf( "Pa_IsFormatSupported reports device will not support %d channels.\n", CHANNEL_COUNT );
- }
+ if( Pa_IsFormatSupported( 0, &outputParameters, SAMPLE_RATE ) == paFormatIsSupported ){
+ printf( "Pa_IsFormatSupported reports device will support %d channels.\n", CHANNEL_COUNT );
+ }else{
+ printf( "Pa_IsFormatSupported reports device will not support %d channels.\n", CHANNEL_COUNT );
+ }
err = Pa_OpenStream(
&stream,
Pa_Terminate();
printf("Test finished.\n");
-
+
return err;
error:
Pa_Terminate();
/** @file paex_write_sine.c
- @ingroup examples_src
- @brief Play a sine wave for several seconds using the blocking API (Pa_WriteStream())
- @author Ross Bencina <rossb@audiomulch.com>
+ @ingroup examples_src
+ @brief Play a sine wave for several seconds using the blocking API (Pa_WriteStream())
+ @author Ross Bencina <rossb@audiomulch.com>
@author Phil Burk <philburk@softsynth.com>
*/
/*
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
int right_inc = 3; /* higher pitch so we can distinguish left and right. */
int i, j, k;
int bufferCount;
-
+
printf("PortAudio Test: output sine wave. SR = %d, BufSize = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER);
-
+
/* initialise sinusoidal wavetable */
for( i=0; i<TABLE_SIZE; i++ )
{
sine[i] = (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. );
}
-
+
err = Pa_Initialize();
if( err != paNoError ) goto error;
outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
if (outputParameters.device == paNoDevice) {
- fprintf(stderr,"Error: No default output device.\n");
- goto error;
+ fprintf(stderr,"Error: No default output device.\n");
+ goto error;
}
outputParameters.channelCount = 2; /* stereo output */
outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
printf( "Play 3 times, higher each time.\n" );
-
+
for( k=0; k < 3; ++k )
{
err = Pa_StartStream( stream );
err = Pa_WriteStream( stream, buffer, FRAMES_PER_BUFFER );
if( err != paNoError ) goto error;
- }
+ }
err = Pa_StopStream( stream );
if( err != paNoError ) goto error;
Pa_Terminate();
printf("Test finished.\n");
-
+
return err;
error:
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 ) );
- // Print more information about the error.
- if( err == paUnanticipatedHostError )
- {
- const PaHostErrorInfo *hostErrorInfo = Pa_GetLastHostErrorInfo();
- fprintf( stderr, "Host API error = #%ld, hostApiType = %d\n", hostErrorInfo->errorCode, hostErrorInfo->hostApiType );
- fprintf( stderr, "Host API error = %s\n", hostErrorInfo->errorText );
- }
+ // Print more information about the error.
+ if( err == paUnanticipatedHostError )
+ {
+ const PaHostErrorInfo *hostErrorInfo = Pa_GetLastHostErrorInfo();
+ fprintf( stderr, "Host API error = #%ld, hostApiType = %d\n", hostErrorInfo->errorCode, hostErrorInfo->hostApiType );
+ fprintf( stderr, "Host API error = %s\n", hostErrorInfo->errorText );
+ }
Pa_Terminate();
return err;
}
/** @file paex_write_sine_nonint.c
- @ingroup examples_src
- @brief Play a non-interleaved sine wave using the blocking API (Pa_WriteStream())
- @author Ross Bencina <rossb@audiomulch.com>
+ @ingroup examples_src
+ @brief Play a non-interleaved sine wave using the blocking API (Pa_WriteStream())
+ @author Ross Bencina <rossb@audiomulch.com>
@author Phil Burk <philburk@softsynth.com>
*/
/*
*/
/*
- * The text above constitutes the entire PortAudio license; however,
+ * 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
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
* license above.
*/
PaStreamParameters outputParameters;
PaStream *stream;
PaError err;
-
- float leftBuffer[FRAMES_PER_BUFFER];
+
+ float leftBuffer[FRAMES_PER_BUFFER];
float rightBuffer[FRAMES_PER_BUFFER];
void *buffers[2]; /* points to both non-interleaved buffers. */
-
+
float sine[TABLE_SIZE]; /* sine wavetable */
int left_phase = 0;
int right_phase = 0;
int i, j, k;
int bufferCount;
-
+
printf("PortAudio Test: output sine wave NON-INTERLEAVED. SR = %d, BufSize = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER);
-
+
/* initialise sinusoidal wavetable */
for( i=0; i<TABLE_SIZE; i++ )
{
sine[i] = (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. );
}
-
+
err = Pa_Initialize();
if( err != paNoError ) goto error;
outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
if (outputParameters.device == paNoDevice) {
- fprintf(stderr,"Error: No default output device.\n");
- goto error;
+ fprintf(stderr,"Error: No default output device.\n");
+ goto error;
}
outputParameters.channelCount = 2; /* stereo output */
outputParameters.sampleFormat = paFloat32 | paNonInterleaved; /* 32 bit floating point output NON-INTERLEAVED */
printf( "Play 3 times, higher each time.\n" );
-
- /* Set up array of buffer pointers for Pa_WriteStream */
- buffers[0] = leftBuffer;
- buffers[1] = rightBuffer;
-
+
+ /* Set up array of buffer pointers for Pa_WriteStream */
+ buffers[0] = leftBuffer;
+ buffers[1] = rightBuffer;
+
for( k=0; k < 3; ++k )
{
err = Pa_StartStream( stream );
err = Pa_WriteStream( stream, buffers, FRAMES_PER_BUFFER );
if( err != paNoError ) goto error;
- }
+ }
err = Pa_StopStream( stream );
if( err != paNoError ) goto error;
Pa_Terminate();
printf("Test finished.\n");
-
+
return err;
error:
Pa_Terminate();
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