mirror of
https://github.com/cookiengineer/audacity
synced 2025-10-10 16:43:33 +02:00
Reverting r12850...hopefully
Never removed one before, but I'm pretty sure it is correct.
This commit is contained in:
lllucius
File diff suppressed because it is too large
Load Diff
@@ -1,187 +1,187 @@
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/*
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* $Id: $
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* Portable Audio I/O Library
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* Windows DirectSound low level buffer parameters test
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*
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* Copyright (c) 2011 Ross Bencina
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*
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* 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,
|
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* 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.
|
||||
*
|
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* 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
|
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* 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.
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*/
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/*
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* The text above constitutes the entire PortAudio license; however,
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* the PortAudio community also makes the following non-binding requests:
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*
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* Any person wishing to distribute modifications to the Software is
|
||||
* requested to send the modifications to the original developer so that
|
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* they can be incorporated into the canonical version. It is also
|
||||
* requested that these non-binding requests be included along with the
|
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* license above.
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*/
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#include <stdio.h>
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#include <math.h>
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#include "portaudio.h"
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#include "pa_win_ds.h"
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#define NUM_SECONDS (6)
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#define SAMPLE_RATE (44100)
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#define DSOUND_FRAMES_PER_HOST_BUFFER (256*2) //(440*10)
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#define FRAMES_PER_BUFFER 256
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#ifndef M_PI
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#define M_PI (3.14159265)
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#endif
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#define TABLE_SIZE (2048)
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#define CHANNEL_COUNT (2)
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typedef struct
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{
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float sine[TABLE_SIZE];
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double phase;
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}
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paTestData;
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/* This routine will be called by the PortAudio engine when audio is needed.
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** It may called at interrupt level on some machines so don't do anything
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** that could mess up the system like calling malloc() or free().
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*/
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static int patestCallback( const void *inputBuffer, void *outputBuffer,
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unsigned long framesPerBuffer,
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const PaStreamCallbackTimeInfo* timeInfo,
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PaStreamCallbackFlags statusFlags,
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void *userData )
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{
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paTestData *data = (paTestData*)userData;
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float *out = (float*)outputBuffer;
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unsigned long i,j;
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(void) timeInfo; /* Prevent unused variable warnings. */
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(void) statusFlags;
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(void) inputBuffer;
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for( i=0; i<framesPerBuffer; i++ )
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{
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float x = data->sine[(int)data->phase];
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data->phase += 20;
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if( data->phase >= TABLE_SIZE ){
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data->phase -= TABLE_SIZE;
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}
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for( j = 0; j < CHANNEL_COUNT; ++j ){
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*out++ = x;
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}
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}
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return paContinue;
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}
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/*******************************************************************/
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int main(int argc, char* argv[])
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{
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PaStreamParameters outputParameters;
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PaWinDirectSoundStreamInfo dsoundStreamInfo;
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PaStream *stream;
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PaError err;
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paTestData data;
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int i;
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int deviceIndex;
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printf("PortAudio Test: output a sine blip on each channel. SR = %d, BufSize = %d, Chans = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER, CHANNEL_COUNT);
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err = Pa_Initialize();
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if( err != paNoError ) goto error;
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deviceIndex = Pa_GetHostApiInfo( Pa_HostApiTypeIdToHostApiIndex( paDirectSound ) )->defaultOutputDevice;
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if( argc == 2 ){
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sscanf( argv[1], "%d", &deviceIndex );
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}
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printf( "using device id %d (%s)\n", deviceIndex, Pa_GetDeviceInfo(deviceIndex)->name );
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/* initialise sinusoidal wavetable */
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for( i=0; i<TABLE_SIZE; i++ )
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{
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data.sine[i] = (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. );
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}
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data.phase = 0;
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outputParameters.device = deviceIndex;
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outputParameters.channelCount = CHANNEL_COUNT;
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outputParameters.sampleFormat = paFloat32; /* 32 bit floating point processing */
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outputParameters.suggestedLatency = 0; /*Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;*/
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outputParameters.hostApiSpecificStreamInfo = NULL;
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dsoundStreamInfo.size = sizeof(PaWinDirectSoundStreamInfo);
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dsoundStreamInfo.hostApiType = paDirectSound;
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dsoundStreamInfo.version = 2;
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dsoundStreamInfo.flags = paWinDirectSoundUseLowLevelLatencyParameters;
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dsoundStreamInfo.framesPerBuffer = DSOUND_FRAMES_PER_HOST_BUFFER;
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outputParameters.hostApiSpecificStreamInfo = &dsoundStreamInfo;
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if( Pa_IsFormatSupported( 0, &outputParameters, SAMPLE_RATE ) == paFormatIsSupported ){
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printf( "Pa_IsFormatSupported reports device will support %d channels.\n", CHANNEL_COUNT );
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}else{
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printf( "Pa_IsFormatSupported reports device will not support %d channels.\n", CHANNEL_COUNT );
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}
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err = Pa_OpenStream(
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&stream,
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NULL, /* no input */
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&outputParameters,
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SAMPLE_RATE,
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FRAMES_PER_BUFFER,
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paClipOff, /* we won't output out of range samples so don't bother clipping them */
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patestCallback,
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&data );
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if( err != paNoError ) goto error;
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err = Pa_StartStream( stream );
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if( err != paNoError ) goto error;
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printf("Play for %d seconds.\n", NUM_SECONDS );
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Pa_Sleep( NUM_SECONDS * 1000 );
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err = Pa_StopStream( stream );
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if( err != paNoError ) goto error;
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err = Pa_CloseStream( stream );
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if( err != paNoError ) goto error;
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Pa_Terminate();
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printf("Test finished.\n");
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return err;
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error:
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Pa_Terminate();
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fprintf( stderr, "An error occured while using the portaudio stream\n" );
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fprintf( stderr, "Error number: %d\n", err );
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fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
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return err;
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}
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/*
|
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* $Id: $
|
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* Portable Audio I/O Library
|
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* Windows DirectSound low level buffer parameters test
|
||||
*
|
||||
* Copyright (c) 2011 Ross Bencina
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
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#include <stdio.h>
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#include <math.h>
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|
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#include "portaudio.h"
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#include "pa_win_ds.h"
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|
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#define NUM_SECONDS (6)
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#define SAMPLE_RATE (44100)
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#define DSOUND_FRAMES_PER_HOST_BUFFER (256*2) //(440*10)
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|
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#define FRAMES_PER_BUFFER 256
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#ifndef M_PI
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#define M_PI (3.14159265)
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#endif
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#define TABLE_SIZE (2048)
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#define CHANNEL_COUNT (2)
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typedef struct
|
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{
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float sine[TABLE_SIZE];
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double phase;
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}
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paTestData;
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|
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/* This routine will be called by the PortAudio engine when audio is needed.
|
||||
** It may called at interrupt level on some machines so don't do anything
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** that could mess up the system like calling malloc() or free().
|
||||
*/
|
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static int patestCallback( const void *inputBuffer, void *outputBuffer,
|
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unsigned long framesPerBuffer,
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const PaStreamCallbackTimeInfo* timeInfo,
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PaStreamCallbackFlags statusFlags,
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void *userData )
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{
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paTestData *data = (paTestData*)userData;
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float *out = (float*)outputBuffer;
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unsigned long i,j;
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(void) timeInfo; /* Prevent unused variable warnings. */
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(void) statusFlags;
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(void) inputBuffer;
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for( i=0; i<framesPerBuffer; i++ )
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{
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float x = data->sine[(int)data->phase];
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data->phase += 20;
|
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if( data->phase >= TABLE_SIZE ){
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data->phase -= TABLE_SIZE;
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}
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|
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for( j = 0; j < CHANNEL_COUNT; ++j ){
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*out++ = x;
|
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}
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}
|
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return paContinue;
|
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}
|
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|
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/*******************************************************************/
|
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int main(int argc, char* argv[])
|
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{
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PaStreamParameters outputParameters;
|
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PaWinDirectSoundStreamInfo dsoundStreamInfo;
|
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PaStream *stream;
|
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PaError err;
|
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paTestData data;
|
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int i;
|
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int deviceIndex;
|
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|
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printf("PortAudio Test: output a sine blip on each channel. SR = %d, BufSize = %d, Chans = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER, CHANNEL_COUNT);
|
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|
||||
err = Pa_Initialize();
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if( err != paNoError ) goto error;
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|
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deviceIndex = Pa_GetHostApiInfo( Pa_HostApiTypeIdToHostApiIndex( paDirectSound ) )->defaultOutputDevice;
|
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if( argc == 2 ){
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sscanf( argv[1], "%d", &deviceIndex );
|
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}
|
||||
|
||||
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;
|
||||
|
||||
outputParameters.device = deviceIndex;
|
||||
outputParameters.channelCount = CHANNEL_COUNT;
|
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outputParameters.sampleFormat = paFloat32; /* 32 bit floating point processing */
|
||||
outputParameters.suggestedLatency = 0; /*Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;*/
|
||||
outputParameters.hostApiSpecificStreamInfo = NULL;
|
||||
|
||||
dsoundStreamInfo.size = sizeof(PaWinDirectSoundStreamInfo);
|
||||
dsoundStreamInfo.hostApiType = paDirectSound;
|
||||
dsoundStreamInfo.version = 2;
|
||||
dsoundStreamInfo.flags = paWinDirectSoundUseLowLevelLatencyParameters;
|
||||
dsoundStreamInfo.framesPerBuffer = DSOUND_FRAMES_PER_HOST_BUFFER;
|
||||
outputParameters.hostApiSpecificStreamInfo = &dsoundStreamInfo;
|
||||
|
||||
|
||||
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,
|
||||
NULL, /* no input */
|
||||
&outputParameters,
|
||||
SAMPLE_RATE,
|
||||
FRAMES_PER_BUFFER,
|
||||
paClipOff, /* we won't output out of range samples so don't bother clipping them */
|
||||
patestCallback,
|
||||
&data );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
err = Pa_StartStream( stream );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
printf("Play for %d seconds.\n", NUM_SECONDS );
|
||||
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;
|
||||
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 ) );
|
||||
return err;
|
||||
}
|
||||
|
||||
|
||||
@@ -1,343 +1,343 @@
|
||||
/** @file pa_test_jack_wasapi.c
|
||||
@ingroup test_src
|
||||
@brief Print out jack information for WASAPI endpoints
|
||||
@author Reid Bishop <rbish@attglobal.net>
|
||||
*/
|
||||
/*
|
||||
* $Id: pa_test_jack_wasapi.c 1368 2008-03-01 00:38:27Z rbishop $
|
||||
*
|
||||
* This program uses the PortAudio Portable Audio Library.
|
||||
* For more information see: http://www.portaudio.com/
|
||||
* Copyright (c) 1999-2010 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 "portaudio.h"
|
||||
#include "pa_win_wasapi.h"
|
||||
|
||||
|
||||
/*
|
||||
* Helper function to determine if a given enum is present in mask variable
|
||||
*
|
||||
*/
|
||||
static int IsInMask(int val, int val2)
|
||||
{
|
||||
return ((val & val2) == val2);
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine enumerates through the ChannelMapping for the IJackDescription
|
||||
*/
|
||||
|
||||
static void EnumIJackChannels(int channelMapping)
|
||||
{
|
||||
printf("Channel Mapping: ");
|
||||
if(channelMapping == PAWIN_SPEAKER_DIRECTOUT)
|
||||
{
|
||||
printf("DIRECTOUT\n");
|
||||
return;
|
||||
}
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_FRONT_LEFT))
|
||||
printf("FRONT_LEFT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_FRONT_RIGHT))
|
||||
printf("FRONT_RIGHT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_FRONT_CENTER))
|
||||
printf("FRONT_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_LOW_FREQUENCY))
|
||||
printf("LOW_FREQUENCY, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_BACK_LEFT))
|
||||
printf("BACK_LEFT, ");
|
||||
if(IsInMask(channelMapping,PAWIN_SPEAKER_BACK_RIGHT))
|
||||
printf("BACK_RIGHT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_FRONT_LEFT_OF_CENTER))
|
||||
printf("FRONT_LEFT_OF_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_FRONT_RIGHT_OF_CENTER))
|
||||
printf("FRONT_RIGHT_OF_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_BACK_CENTER))
|
||||
printf("BACK_CENTER, ");
|
||||
if(IsInMask(channelMapping,PAWIN_SPEAKER_SIDE_LEFT))
|
||||
printf("SIDE_LEFT, ");
|
||||
if(IsInMask(channelMapping,PAWIN_SPEAKER_SIDE_RIGHT))
|
||||
printf("SIDE_RIGHT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_CENTER))
|
||||
printf("TOP_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_FRONT_LEFT))
|
||||
printf("TOP_FRONT_LEFT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_FRONT_CENTER))
|
||||
printf("TOP_FRONT_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_FRONT_RIGHT))
|
||||
printf("TOP_FRONT_RIGHT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_BACK_LEFT))
|
||||
printf("TOP_BACK_LEFT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_BACK_CENTER))
|
||||
printf("TOP_BACK_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_BACK_RIGHT))
|
||||
printf("TOP_BACK_RIGHT, ");
|
||||
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine enumerates through the Jack Connection Types enums for IJackDescription
|
||||
*/
|
||||
static void EnumIJackConnectionType(int cType)
|
||||
{
|
||||
printf("Connection Type: ");
|
||||
switch(cType)
|
||||
{
|
||||
case eJackConnTypeUnknown:
|
||||
printf("eJackConnTypeUnknown");
|
||||
break;
|
||||
case eJackConnType3Point5mm:
|
||||
printf("eJackConnType3Point5mm");
|
||||
break;
|
||||
case eJackConnTypeQuarter:
|
||||
printf("eJackConnTypeQuarter");
|
||||
break;
|
||||
case eJackConnTypeAtapiInternal:
|
||||
printf("eJackConnTypeAtapiInternal");
|
||||
break;
|
||||
case eJackConnTypeRCA:
|
||||
printf("eJackConnTypeRCA");
|
||||
break;
|
||||
case eJackConnTypeOptical:
|
||||
printf("eJackConnTypeOptical");
|
||||
break;
|
||||
case eJackConnTypeOtherDigital:
|
||||
printf("eJackConnTypeOtherDigital");
|
||||
break;
|
||||
case eJackConnTypeOtherAnalog:
|
||||
printf("eJackConnTypeOtherAnalog");
|
||||
break;
|
||||
case eJackConnTypeMultichannelAnalogDIN:
|
||||
printf("eJackConnTypeMultichannelAnalogDIN");
|
||||
break;
|
||||
case eJackConnTypeXlrProfessional:
|
||||
printf("eJackConnTypeXlrProfessional");
|
||||
break;
|
||||
case eJackConnTypeRJ11Modem:
|
||||
printf("eJackConnTypeRJ11Modem");
|
||||
break;
|
||||
case eJackConnTypeCombination:
|
||||
printf("eJackConnTypeCombination");
|
||||
break;
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine enumerates through the GeoLocation enums for the IJackDescription
|
||||
*/
|
||||
static void EnumIJackGeoLocation(int iVal)
|
||||
{
|
||||
printf("Geometric Location: ");
|
||||
switch(iVal)
|
||||
{
|
||||
case eJackGeoLocRear:
|
||||
printf("eJackGeoLocRear");
|
||||
break;
|
||||
case eJackGeoLocFront:
|
||||
printf("eJackGeoLocFront");
|
||||
break;
|
||||
case eJackGeoLocLeft:
|
||||
printf("eJackGeoLocLeft");
|
||||
break;
|
||||
case eJackGeoLocRight:
|
||||
printf("eJackGeoLocRight");
|
||||
break;
|
||||
case eJackGeoLocTop:
|
||||
printf("eJackGeoLocTop");
|
||||
break;
|
||||
case eJackGeoLocBottom:
|
||||
printf("eJackGeoLocBottom");
|
||||
break;
|
||||
case eJackGeoLocRearPanel:
|
||||
printf("eJackGeoLocRearPanel");
|
||||
break;
|
||||
case eJackGeoLocRiser:
|
||||
printf("eJackGeoLocRiser");
|
||||
break;
|
||||
case eJackGeoLocInsideMobileLid:
|
||||
printf("eJackGeoLocInsideMobileLid");
|
||||
break;
|
||||
case eJackGeoLocDrivebay:
|
||||
printf("eJackGeoLocDrivebay");
|
||||
break;
|
||||
case eJackGeoLocHDMI:
|
||||
printf("eJackGeoLocHDMI");
|
||||
break;
|
||||
case eJackGeoLocOutsideMobileLid:
|
||||
printf("eJackGeoLocOutsideMobileLid");
|
||||
break;
|
||||
case eJackGeoLocATAPI:
|
||||
printf("eJackGeoLocATAPI");
|
||||
break;
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine enumerates through the GenLocation enums for the IJackDescription
|
||||
*/
|
||||
static void EnumIJackGenLocation(int iVal)
|
||||
{
|
||||
printf("General Location: ");
|
||||
switch(iVal)
|
||||
{
|
||||
case eJackGenLocPrimaryBox:
|
||||
printf("eJackGenLocPrimaryBox");
|
||||
break;
|
||||
case eJackGenLocInternal:
|
||||
printf("eJackGenLocInternal");
|
||||
break;
|
||||
case eJackGenLocSeparate:
|
||||
printf("eJackGenLocSeparate");
|
||||
break;
|
||||
case eJackGenLocOther:
|
||||
printf("eJackGenLocOther");
|
||||
break;
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine enumerates through the PortConnection enums for the IJackDescription
|
||||
*/
|
||||
static void EnumIJackPortConnection(int iVal)
|
||||
{
|
||||
printf("Port Type: ");
|
||||
switch(iVal)
|
||||
{
|
||||
case eJackPortConnJack:
|
||||
printf("eJackPortConnJack");
|
||||
break;
|
||||
case eJackPortConnIntegratedDevice:
|
||||
printf("eJackPortConnIntegratedDevice");
|
||||
break;
|
||||
case eJackPortConnBothIntegratedAndJack:
|
||||
printf("eJackPortConnBothIntegratedAndJack");
|
||||
break;
|
||||
case eJackPortConnUnknown:
|
||||
printf("eJackPortConnUnknown");
|
||||
break;
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine retrieves and parses the KSJACK_DESCRIPTION structure for
|
||||
* the provided device ID.
|
||||
*/
|
||||
static PaError GetJackInformation(int deviceId)
|
||||
{
|
||||
PaError err;
|
||||
int i;
|
||||
int jackCount = 0;
|
||||
PaWasapiJackDescription jackDesc;
|
||||
|
||||
err = PaWasapi_GetJackCount(deviceId, &jackCount);
|
||||
if( err != paNoError ) return err;
|
||||
|
||||
fprintf( stderr,"Number of Jacks: %d \n", jackCount );
|
||||
|
||||
for( i = 0; i<jackCount; i++ )
|
||||
{
|
||||
fprintf( stderr,"Jack #%d:\n", i );
|
||||
|
||||
err = PaWasapi_GetJackDescription(deviceId, i, &jackDesc);
|
||||
if( err != paNoError )
|
||||
{
|
||||
fprintf( stderr,"Failed getting description." );
|
||||
continue;
|
||||
}
|
||||
else
|
||||
{
|
||||
printf("Is connected: %s\n",(jackDesc.isConnected)?"true":"false");
|
||||
EnumIJackChannels(jackDesc.channelMapping);
|
||||
EnumIJackConnectionType(jackDesc.connectionType);
|
||||
EnumIJackGeoLocation(jackDesc.geoLocation);
|
||||
EnumIJackGenLocation(jackDesc.genLocation);
|
||||
EnumIJackPortConnection(jackDesc.portConnection);
|
||||
printf("Jack Color: 0x%06X\n", jackDesc.color);
|
||||
printf("\n");
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/*******************************************************************/
|
||||
int main(void);
|
||||
int main(void)
|
||||
{
|
||||
PaError err;
|
||||
const PaDeviceInfo *device;
|
||||
int i;
|
||||
int jackCount = 0;
|
||||
int isInput = 0;
|
||||
|
||||
printf("PortAudio Test: WASAPI Jack Configuratin");
|
||||
err = Pa_Initialize();
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
/* Find all WASAPI devices */
|
||||
for( i = 0; i < Pa_GetDeviceCount(); ++i )
|
||||
{
|
||||
device = Pa_GetDeviceInfo(i);
|
||||
if( Pa_GetDeviceInfo(i)->hostApi == Pa_HostApiTypeIdToHostApiIndex(paWASAPI) )
|
||||
{
|
||||
if( device->maxOutputChannels == 0 )
|
||||
{
|
||||
isInput = 1;
|
||||
}
|
||||
printf("------------------------------------------\n");
|
||||
printf("Device: %s",device->name);
|
||||
if(isInput)
|
||||
printf(" (Input) %d Channels\n",device->maxInputChannels);
|
||||
else
|
||||
printf(" (Output) %d Channels\n",device->maxOutputChannels);
|
||||
// Try to see if this WASAPI device can provide Jack information
|
||||
err = GetJackInformation(i);
|
||||
if( err != paNoError ) goto error;
|
||||
}
|
||||
}
|
||||
Pa_Terminate();
|
||||
printf("Test finished.\n");
|
||||
return err;
|
||||
|
||||
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 ) );
|
||||
return err;
|
||||
}
|
||||
/** @file pa_test_jack_wasapi.c
|
||||
@ingroup test_src
|
||||
@brief Print out jack information for WASAPI endpoints
|
||||
@author Reid Bishop <rbish@attglobal.net>
|
||||
*/
|
||||
/*
|
||||
* $Id: pa_test_jack_wasapi.c 1368 2008-03-01 00:38:27Z rbishop $
|
||||
*
|
||||
* This program uses the PortAudio Portable Audio Library.
|
||||
* For more information see: http://www.portaudio.com/
|
||||
* Copyright (c) 1999-2010 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 "portaudio.h"
|
||||
#include "pa_win_wasapi.h"
|
||||
|
||||
|
||||
/*
|
||||
* Helper function to determine if a given enum is present in mask variable
|
||||
*
|
||||
*/
|
||||
static int IsInMask(int val, int val2)
|
||||
{
|
||||
return ((val & val2) == val2);
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine enumerates through the ChannelMapping for the IJackDescription
|
||||
*/
|
||||
|
||||
static void EnumIJackChannels(int channelMapping)
|
||||
{
|
||||
printf("Channel Mapping: ");
|
||||
if(channelMapping == PAWIN_SPEAKER_DIRECTOUT)
|
||||
{
|
||||
printf("DIRECTOUT\n");
|
||||
return;
|
||||
}
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_FRONT_LEFT))
|
||||
printf("FRONT_LEFT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_FRONT_RIGHT))
|
||||
printf("FRONT_RIGHT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_FRONT_CENTER))
|
||||
printf("FRONT_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_LOW_FREQUENCY))
|
||||
printf("LOW_FREQUENCY, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_BACK_LEFT))
|
||||
printf("BACK_LEFT, ");
|
||||
if(IsInMask(channelMapping,PAWIN_SPEAKER_BACK_RIGHT))
|
||||
printf("BACK_RIGHT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_FRONT_LEFT_OF_CENTER))
|
||||
printf("FRONT_LEFT_OF_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_FRONT_RIGHT_OF_CENTER))
|
||||
printf("FRONT_RIGHT_OF_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_BACK_CENTER))
|
||||
printf("BACK_CENTER, ");
|
||||
if(IsInMask(channelMapping,PAWIN_SPEAKER_SIDE_LEFT))
|
||||
printf("SIDE_LEFT, ");
|
||||
if(IsInMask(channelMapping,PAWIN_SPEAKER_SIDE_RIGHT))
|
||||
printf("SIDE_RIGHT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_CENTER))
|
||||
printf("TOP_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_FRONT_LEFT))
|
||||
printf("TOP_FRONT_LEFT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_FRONT_CENTER))
|
||||
printf("TOP_FRONT_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_FRONT_RIGHT))
|
||||
printf("TOP_FRONT_RIGHT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_BACK_LEFT))
|
||||
printf("TOP_BACK_LEFT, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_BACK_CENTER))
|
||||
printf("TOP_BACK_CENTER, ");
|
||||
if(IsInMask(channelMapping, PAWIN_SPEAKER_TOP_BACK_RIGHT))
|
||||
printf("TOP_BACK_RIGHT, ");
|
||||
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine enumerates through the Jack Connection Types enums for IJackDescription
|
||||
*/
|
||||
static void EnumIJackConnectionType(int cType)
|
||||
{
|
||||
printf("Connection Type: ");
|
||||
switch(cType)
|
||||
{
|
||||
case eJackConnTypeUnknown:
|
||||
printf("eJackConnTypeUnknown");
|
||||
break;
|
||||
case eJackConnType3Point5mm:
|
||||
printf("eJackConnType3Point5mm");
|
||||
break;
|
||||
case eJackConnTypeQuarter:
|
||||
printf("eJackConnTypeQuarter");
|
||||
break;
|
||||
case eJackConnTypeAtapiInternal:
|
||||
printf("eJackConnTypeAtapiInternal");
|
||||
break;
|
||||
case eJackConnTypeRCA:
|
||||
printf("eJackConnTypeRCA");
|
||||
break;
|
||||
case eJackConnTypeOptical:
|
||||
printf("eJackConnTypeOptical");
|
||||
break;
|
||||
case eJackConnTypeOtherDigital:
|
||||
printf("eJackConnTypeOtherDigital");
|
||||
break;
|
||||
case eJackConnTypeOtherAnalog:
|
||||
printf("eJackConnTypeOtherAnalog");
|
||||
break;
|
||||
case eJackConnTypeMultichannelAnalogDIN:
|
||||
printf("eJackConnTypeMultichannelAnalogDIN");
|
||||
break;
|
||||
case eJackConnTypeXlrProfessional:
|
||||
printf("eJackConnTypeXlrProfessional");
|
||||
break;
|
||||
case eJackConnTypeRJ11Modem:
|
||||
printf("eJackConnTypeRJ11Modem");
|
||||
break;
|
||||
case eJackConnTypeCombination:
|
||||
printf("eJackConnTypeCombination");
|
||||
break;
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine enumerates through the GeoLocation enums for the IJackDescription
|
||||
*/
|
||||
static void EnumIJackGeoLocation(int iVal)
|
||||
{
|
||||
printf("Geometric Location: ");
|
||||
switch(iVal)
|
||||
{
|
||||
case eJackGeoLocRear:
|
||||
printf("eJackGeoLocRear");
|
||||
break;
|
||||
case eJackGeoLocFront:
|
||||
printf("eJackGeoLocFront");
|
||||
break;
|
||||
case eJackGeoLocLeft:
|
||||
printf("eJackGeoLocLeft");
|
||||
break;
|
||||
case eJackGeoLocRight:
|
||||
printf("eJackGeoLocRight");
|
||||
break;
|
||||
case eJackGeoLocTop:
|
||||
printf("eJackGeoLocTop");
|
||||
break;
|
||||
case eJackGeoLocBottom:
|
||||
printf("eJackGeoLocBottom");
|
||||
break;
|
||||
case eJackGeoLocRearPanel:
|
||||
printf("eJackGeoLocRearPanel");
|
||||
break;
|
||||
case eJackGeoLocRiser:
|
||||
printf("eJackGeoLocRiser");
|
||||
break;
|
||||
case eJackGeoLocInsideMobileLid:
|
||||
printf("eJackGeoLocInsideMobileLid");
|
||||
break;
|
||||
case eJackGeoLocDrivebay:
|
||||
printf("eJackGeoLocDrivebay");
|
||||
break;
|
||||
case eJackGeoLocHDMI:
|
||||
printf("eJackGeoLocHDMI");
|
||||
break;
|
||||
case eJackGeoLocOutsideMobileLid:
|
||||
printf("eJackGeoLocOutsideMobileLid");
|
||||
break;
|
||||
case eJackGeoLocATAPI:
|
||||
printf("eJackGeoLocATAPI");
|
||||
break;
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine enumerates through the GenLocation enums for the IJackDescription
|
||||
*/
|
||||
static void EnumIJackGenLocation(int iVal)
|
||||
{
|
||||
printf("General Location: ");
|
||||
switch(iVal)
|
||||
{
|
||||
case eJackGenLocPrimaryBox:
|
||||
printf("eJackGenLocPrimaryBox");
|
||||
break;
|
||||
case eJackGenLocInternal:
|
||||
printf("eJackGenLocInternal");
|
||||
break;
|
||||
case eJackGenLocSeparate:
|
||||
printf("eJackGenLocSeparate");
|
||||
break;
|
||||
case eJackGenLocOther:
|
||||
printf("eJackGenLocOther");
|
||||
break;
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine enumerates through the PortConnection enums for the IJackDescription
|
||||
*/
|
||||
static void EnumIJackPortConnection(int iVal)
|
||||
{
|
||||
printf("Port Type: ");
|
||||
switch(iVal)
|
||||
{
|
||||
case eJackPortConnJack:
|
||||
printf("eJackPortConnJack");
|
||||
break;
|
||||
case eJackPortConnIntegratedDevice:
|
||||
printf("eJackPortConnIntegratedDevice");
|
||||
break;
|
||||
case eJackPortConnBothIntegratedAndJack:
|
||||
printf("eJackPortConnBothIntegratedAndJack");
|
||||
break;
|
||||
case eJackPortConnUnknown:
|
||||
printf("eJackPortConnUnknown");
|
||||
break;
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine retrieves and parses the KSJACK_DESCRIPTION structure for
|
||||
* the provided device ID.
|
||||
*/
|
||||
static PaError GetJackInformation(int deviceId)
|
||||
{
|
||||
PaError err;
|
||||
int i;
|
||||
int jackCount = 0;
|
||||
PaWasapiJackDescription jackDesc;
|
||||
|
||||
err = PaWasapi_GetJackCount(deviceId, &jackCount);
|
||||
if( err != paNoError ) return err;
|
||||
|
||||
fprintf( stderr,"Number of Jacks: %d \n", jackCount );
|
||||
|
||||
for( i = 0; i<jackCount; i++ )
|
||||
{
|
||||
fprintf( stderr,"Jack #%d:\n", i );
|
||||
|
||||
err = PaWasapi_GetJackDescription(deviceId, i, &jackDesc);
|
||||
if( err != paNoError )
|
||||
{
|
||||
fprintf( stderr,"Failed getting description." );
|
||||
continue;
|
||||
}
|
||||
else
|
||||
{
|
||||
printf("Is connected: %s\n",(jackDesc.isConnected)?"true":"false");
|
||||
EnumIJackChannels(jackDesc.channelMapping);
|
||||
EnumIJackConnectionType(jackDesc.connectionType);
|
||||
EnumIJackGeoLocation(jackDesc.geoLocation);
|
||||
EnumIJackGenLocation(jackDesc.genLocation);
|
||||
EnumIJackPortConnection(jackDesc.portConnection);
|
||||
printf("Jack Color: 0x%06X\n", jackDesc.color);
|
||||
printf("\n");
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/*******************************************************************/
|
||||
int main(void);
|
||||
int main(void)
|
||||
{
|
||||
PaError err;
|
||||
const PaDeviceInfo *device;
|
||||
int i;
|
||||
int jackCount = 0;
|
||||
int isInput = 0;
|
||||
|
||||
printf("PortAudio Test: WASAPI Jack Configuratin");
|
||||
err = Pa_Initialize();
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
/* Find all WASAPI devices */
|
||||
for( i = 0; i < Pa_GetDeviceCount(); ++i )
|
||||
{
|
||||
device = Pa_GetDeviceInfo(i);
|
||||
if( Pa_GetDeviceInfo(i)->hostApi == Pa_HostApiTypeIdToHostApiIndex(paWASAPI) )
|
||||
{
|
||||
if( device->maxOutputChannels == 0 )
|
||||
{
|
||||
isInput = 1;
|
||||
}
|
||||
printf("------------------------------------------\n");
|
||||
printf("Device: %s",device->name);
|
||||
if(isInput)
|
||||
printf(" (Input) %d Channels\n",device->maxInputChannels);
|
||||
else
|
||||
printf(" (Output) %d Channels\n",device->maxOutputChannels);
|
||||
// Try to see if this WASAPI device can provide Jack information
|
||||
err = GetJackInformation(i);
|
||||
if( err != paNoError ) goto error;
|
||||
}
|
||||
}
|
||||
Pa_Terminate();
|
||||
printf("Test finished.\n");
|
||||
return err;
|
||||
|
||||
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 ) );
|
||||
return err;
|
||||
}
|
||||
|
||||
@@ -1,269 +1,269 @@
|
||||
/** @file patest_suggested_vs_streaminfo_latency.c
|
||||
@ingroup test_src
|
||||
@brief Print suggested vs. PaStreamInfo reported actual latency
|
||||
@author Ross Bencina <rossb@audiomulch.com>
|
||||
|
||||
Opens streams with a sequence of suggested latency values
|
||||
from 0 to 2 seconds in .5ms intervals and gathers the resulting actual
|
||||
latency values. Output a csv file and graph suggested vs. actual. Run
|
||||
with framesPerBuffer unspecified, powers of 2 and multiples of 50 and
|
||||
prime number buffer sizes.
|
||||
*/
|
||||
/*
|
||||
* $Id: patest_sine.c 1368 2008-03-01 00:38:27Z rossb $
|
||||
*
|
||||
* 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 <string.h>
|
||||
#include <math.h>
|
||||
#include "portaudio.h"
|
||||
|
||||
#define SAMPLE_RATE (44100)
|
||||
#define FRAMES_PER_BUFFER 2//(128)
|
||||
#define NUM_CHANNELS (2)
|
||||
|
||||
#define SUGGESTED_LATENCY_START_SECONDS (0.0)
|
||||
#define SUGGESTED_LATENCY_END_SECONDS (2.0)
|
||||
#define SUGGESTED_LATENCY_INCREMENT_SECONDS (0.0005) /* half a millisecond increments */
|
||||
|
||||
|
||||
/* dummy callback. does nothing. never gets called */
|
||||
static int patestCallback( const void *inputBuffer, void *outputBuffer,
|
||||
unsigned long framesPerBuffer,
|
||||
const PaStreamCallbackTimeInfo* timeInfo,
|
||||
PaStreamCallbackFlags statusFlags,
|
||||
void *userData )
|
||||
{
|
||||
return paContinue;
|
||||
}
|
||||
|
||||
/*******************************************************************/
|
||||
static void usage()
|
||||
{
|
||||
int i;
|
||||
const PaDeviceInfo *deviceInfo;
|
||||
const char *channelString;
|
||||
|
||||
fprintf( stderr, "PortAudio suggested (requested) vs. resulting (reported) stream latency test\n" );
|
||||
fprintf( stderr, "Usage: x.exe input-device-index output-device-index sample-rate frames-per-buffer\n" );
|
||||
fprintf( stderr, "Use -1 for default device index, or use one of these:\n" );
|
||||
for( i=0; i < Pa_GetDeviceCount(); ++i ){
|
||||
deviceInfo = Pa_GetDeviceInfo(i);
|
||||
if( deviceInfo->maxInputChannels > 0 && deviceInfo->maxOutputChannels > 0 )
|
||||
channelString = "full-duplex";
|
||||
else if( deviceInfo->maxInputChannels > 0 )
|
||||
channelString = "input only";
|
||||
else
|
||||
channelString = "output only";
|
||||
|
||||
fprintf( stderr, "%d (%s, %s, %s)\n", i, deviceInfo->name, Pa_GetHostApiInfo(deviceInfo->hostApi)->name, channelString );
|
||||
}
|
||||
Pa_Terminate();
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
int main( int argc, const char* argv[] );
|
||||
int main( int argc, const char* argv[] )
|
||||
{
|
||||
PaStreamParameters inputParameters, outputParameters;
|
||||
PaStream *stream;
|
||||
PaError err;
|
||||
PaTime suggestedLatency;
|
||||
const PaStreamInfo *streamInfo;
|
||||
const PaDeviceInfo *deviceInfo;
|
||||
float sampleRate = SAMPLE_RATE;
|
||||
int framesPerBuffer = FRAMES_PER_BUFFER;
|
||||
err = Pa_Initialize();
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
if( argc > 1 && strcmp(argv[1],"-h") == 0 )
|
||||
usage();
|
||||
|
||||
if( argc > 3 ){
|
||||
sampleRate = atoi(argv[3]);
|
||||
}
|
||||
|
||||
if( argc > 4 ){
|
||||
framesPerBuffer = atoi(argv[4]);
|
||||
}
|
||||
|
||||
printf("# sample rate=%f, frames per buffer=%d\n", (float)sampleRate, framesPerBuffer );
|
||||
|
||||
inputParameters.device = -1;
|
||||
if( argc > 1 )
|
||||
inputParameters.device = atoi(argv[1]);
|
||||
if( inputParameters.device == -1 ){
|
||||
inputParameters.device = Pa_GetDefaultInputDevice();
|
||||
if (inputParameters.device == paNoDevice) {
|
||||
fprintf(stderr,"Error: No default input device available.\n");
|
||||
goto error;
|
||||
}
|
||||
}else{
|
||||
deviceInfo = Pa_GetDeviceInfo(inputParameters.device);
|
||||
if( !deviceInfo ){
|
||||
fprintf(stderr,"Error: Invalid input device index.\n");
|
||||
usage();
|
||||
}
|
||||
if( deviceInfo->maxInputChannels == 0 ){
|
||||
fprintf(stderr,"Error: Specified input device has no input channels (an output only device?).\n");
|
||||
usage();
|
||||
}
|
||||
}
|
||||
|
||||
inputParameters.channelCount = NUM_CHANNELS;
|
||||
inputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
|
||||
inputParameters.hostApiSpecificStreamInfo = NULL;
|
||||
|
||||
deviceInfo = Pa_GetDeviceInfo(inputParameters.device);
|
||||
printf( "# using input device id %d (%s, %s)\n", inputParameters.device, deviceInfo->name, Pa_GetHostApiInfo(deviceInfo->hostApi)->name );
|
||||
|
||||
|
||||
outputParameters.device = -1;
|
||||
if( argc > 2 )
|
||||
outputParameters.device = atoi(argv[2]);
|
||||
if( outputParameters.device == -1 ){
|
||||
outputParameters.device = Pa_GetDefaultOutputDevice();
|
||||
if (outputParameters.device == paNoDevice) {
|
||||
fprintf(stderr,"Error: No default output device available.\n");
|
||||
goto error;
|
||||
}
|
||||
}else{
|
||||
deviceInfo = Pa_GetDeviceInfo(outputParameters.device);
|
||||
if( !deviceInfo ){
|
||||
fprintf(stderr,"Error: Invalid output device index.\n");
|
||||
usage();
|
||||
}
|
||||
if( deviceInfo->maxOutputChannels == 0 ){
|
||||
fprintf(stderr,"Error: Specified output device has no output channels (an input only device?).\n");
|
||||
usage();
|
||||
}
|
||||
}
|
||||
|
||||
outputParameters.channelCount = NUM_CHANNELS;
|
||||
outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
|
||||
outputParameters.hostApiSpecificStreamInfo = NULL;
|
||||
|
||||
deviceInfo = Pa_GetDeviceInfo(outputParameters.device);
|
||||
printf( "# using output device id %d (%s, %s)\n", outputParameters.device, deviceInfo->name, Pa_GetHostApiInfo(deviceInfo->hostApi)->name );
|
||||
|
||||
|
||||
printf( "# suggested latency, half duplex PaStreamInfo::outputLatency, half duplex PaStreamInfo::inputLatency, full duplex PaStreamInfo::outputLatency, full duplex PaStreamInfo::inputLatency\n" );
|
||||
suggestedLatency = SUGGESTED_LATENCY_START_SECONDS;
|
||||
while( suggestedLatency <= SUGGESTED_LATENCY_END_SECONDS ){
|
||||
|
||||
outputParameters.suggestedLatency = suggestedLatency;
|
||||
inputParameters.suggestedLatency = suggestedLatency;
|
||||
|
||||
printf( "%f, ", suggestedLatency );
|
||||
|
||||
/* ------------------------------ output ------------------------------ */
|
||||
|
||||
err = Pa_OpenStream(
|
||||
&stream,
|
||||
NULL, /* no input */
|
||||
&outputParameters,
|
||||
sampleRate,
|
||||
framesPerBuffer,
|
||||
paClipOff, /* we won't output out of range samples so don't bother clipping them */
|
||||
patestCallback,
|
||||
0 );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
streamInfo = Pa_GetStreamInfo( stream );
|
||||
|
||||
printf( "%f,", streamInfo->outputLatency );
|
||||
|
||||
err = Pa_CloseStream( stream );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
/* ------------------------------ input ------------------------------ */
|
||||
|
||||
err = Pa_OpenStream(
|
||||
&stream,
|
||||
&inputParameters,
|
||||
NULL, /* no output */
|
||||
sampleRate,
|
||||
framesPerBuffer,
|
||||
paClipOff, /* we won't output out of range samples so don't bother clipping them */
|
||||
patestCallback,
|
||||
0 );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
streamInfo = Pa_GetStreamInfo( stream );
|
||||
|
||||
printf( "%f,", streamInfo->inputLatency );
|
||||
|
||||
err = Pa_CloseStream( stream );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
/* ------------------------------ full duplex ------------------------------ */
|
||||
|
||||
err = Pa_OpenStream(
|
||||
&stream,
|
||||
&inputParameters,
|
||||
&outputParameters,
|
||||
sampleRate,
|
||||
framesPerBuffer,
|
||||
paClipOff, /* we won't output out of range samples so don't bother clipping them */
|
||||
patestCallback,
|
||||
0 );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
streamInfo = Pa_GetStreamInfo( stream );
|
||||
|
||||
printf( "%f,%f", streamInfo->outputLatency, streamInfo->inputLatency );
|
||||
|
||||
err = Pa_CloseStream( stream );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
/* ------------------------------------------------------------ */
|
||||
|
||||
printf( "\n" );
|
||||
suggestedLatency += SUGGESTED_LATENCY_INCREMENT_SECONDS;
|
||||
}
|
||||
|
||||
Pa_Terminate();
|
||||
printf("# Test finished.\n");
|
||||
|
||||
return err;
|
||||
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 ) );
|
||||
return err;
|
||||
}
|
||||
/** @file patest_suggested_vs_streaminfo_latency.c
|
||||
@ingroup test_src
|
||||
@brief Print suggested vs. PaStreamInfo reported actual latency
|
||||
@author Ross Bencina <rossb@audiomulch.com>
|
||||
|
||||
Opens streams with a sequence of suggested latency values
|
||||
from 0 to 2 seconds in .5ms intervals and gathers the resulting actual
|
||||
latency values. Output a csv file and graph suggested vs. actual. Run
|
||||
with framesPerBuffer unspecified, powers of 2 and multiples of 50 and
|
||||
prime number buffer sizes.
|
||||
*/
|
||||
/*
|
||||
* $Id: patest_sine.c 1368 2008-03-01 00:38:27Z rossb $
|
||||
*
|
||||
* 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 <string.h>
|
||||
#include <math.h>
|
||||
#include "portaudio.h"
|
||||
|
||||
#define SAMPLE_RATE (44100)
|
||||
#define FRAMES_PER_BUFFER 2//(128)
|
||||
#define NUM_CHANNELS (2)
|
||||
|
||||
#define SUGGESTED_LATENCY_START_SECONDS (0.0)
|
||||
#define SUGGESTED_LATENCY_END_SECONDS (2.0)
|
||||
#define SUGGESTED_LATENCY_INCREMENT_SECONDS (0.0005) /* half a millisecond increments */
|
||||
|
||||
|
||||
/* dummy callback. does nothing. never gets called */
|
||||
static int patestCallback( const void *inputBuffer, void *outputBuffer,
|
||||
unsigned long framesPerBuffer,
|
||||
const PaStreamCallbackTimeInfo* timeInfo,
|
||||
PaStreamCallbackFlags statusFlags,
|
||||
void *userData )
|
||||
{
|
||||
return paContinue;
|
||||
}
|
||||
|
||||
/*******************************************************************/
|
||||
static void usage()
|
||||
{
|
||||
int i;
|
||||
const PaDeviceInfo *deviceInfo;
|
||||
const char *channelString;
|
||||
|
||||
fprintf( stderr, "PortAudio suggested (requested) vs. resulting (reported) stream latency test\n" );
|
||||
fprintf( stderr, "Usage: x.exe input-device-index output-device-index sample-rate frames-per-buffer\n" );
|
||||
fprintf( stderr, "Use -1 for default device index, or use one of these:\n" );
|
||||
for( i=0; i < Pa_GetDeviceCount(); ++i ){
|
||||
deviceInfo = Pa_GetDeviceInfo(i);
|
||||
if( deviceInfo->maxInputChannels > 0 && deviceInfo->maxOutputChannels > 0 )
|
||||
channelString = "full-duplex";
|
||||
else if( deviceInfo->maxInputChannels > 0 )
|
||||
channelString = "input only";
|
||||
else
|
||||
channelString = "output only";
|
||||
|
||||
fprintf( stderr, "%d (%s, %s, %s)\n", i, deviceInfo->name, Pa_GetHostApiInfo(deviceInfo->hostApi)->name, channelString );
|
||||
}
|
||||
Pa_Terminate();
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
int main( int argc, const char* argv[] );
|
||||
int main( int argc, const char* argv[] )
|
||||
{
|
||||
PaStreamParameters inputParameters, outputParameters;
|
||||
PaStream *stream;
|
||||
PaError err;
|
||||
PaTime suggestedLatency;
|
||||
const PaStreamInfo *streamInfo;
|
||||
const PaDeviceInfo *deviceInfo;
|
||||
float sampleRate = SAMPLE_RATE;
|
||||
int framesPerBuffer = FRAMES_PER_BUFFER;
|
||||
err = Pa_Initialize();
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
if( argc > 1 && strcmp(argv[1],"-h") == 0 )
|
||||
usage();
|
||||
|
||||
if( argc > 3 ){
|
||||
sampleRate = atoi(argv[3]);
|
||||
}
|
||||
|
||||
if( argc > 4 ){
|
||||
framesPerBuffer = atoi(argv[4]);
|
||||
}
|
||||
|
||||
printf("# sample rate=%f, frames per buffer=%d\n", (float)sampleRate, framesPerBuffer );
|
||||
|
||||
inputParameters.device = -1;
|
||||
if( argc > 1 )
|
||||
inputParameters.device = atoi(argv[1]);
|
||||
if( inputParameters.device == -1 ){
|
||||
inputParameters.device = Pa_GetDefaultInputDevice();
|
||||
if (inputParameters.device == paNoDevice) {
|
||||
fprintf(stderr,"Error: No default input device available.\n");
|
||||
goto error;
|
||||
}
|
||||
}else{
|
||||
deviceInfo = Pa_GetDeviceInfo(inputParameters.device);
|
||||
if( !deviceInfo ){
|
||||
fprintf(stderr,"Error: Invalid input device index.\n");
|
||||
usage();
|
||||
}
|
||||
if( deviceInfo->maxInputChannels == 0 ){
|
||||
fprintf(stderr,"Error: Specified input device has no input channels (an output only device?).\n");
|
||||
usage();
|
||||
}
|
||||
}
|
||||
|
||||
inputParameters.channelCount = NUM_CHANNELS;
|
||||
inputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
|
||||
inputParameters.hostApiSpecificStreamInfo = NULL;
|
||||
|
||||
deviceInfo = Pa_GetDeviceInfo(inputParameters.device);
|
||||
printf( "# using input device id %d (%s, %s)\n", inputParameters.device, deviceInfo->name, Pa_GetHostApiInfo(deviceInfo->hostApi)->name );
|
||||
|
||||
|
||||
outputParameters.device = -1;
|
||||
if( argc > 2 )
|
||||
outputParameters.device = atoi(argv[2]);
|
||||
if( outputParameters.device == -1 ){
|
||||
outputParameters.device = Pa_GetDefaultOutputDevice();
|
||||
if (outputParameters.device == paNoDevice) {
|
||||
fprintf(stderr,"Error: No default output device available.\n");
|
||||
goto error;
|
||||
}
|
||||
}else{
|
||||
deviceInfo = Pa_GetDeviceInfo(outputParameters.device);
|
||||
if( !deviceInfo ){
|
||||
fprintf(stderr,"Error: Invalid output device index.\n");
|
||||
usage();
|
||||
}
|
||||
if( deviceInfo->maxOutputChannels == 0 ){
|
||||
fprintf(stderr,"Error: Specified output device has no output channels (an input only device?).\n");
|
||||
usage();
|
||||
}
|
||||
}
|
||||
|
||||
outputParameters.channelCount = NUM_CHANNELS;
|
||||
outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
|
||||
outputParameters.hostApiSpecificStreamInfo = NULL;
|
||||
|
||||
deviceInfo = Pa_GetDeviceInfo(outputParameters.device);
|
||||
printf( "# using output device id %d (%s, %s)\n", outputParameters.device, deviceInfo->name, Pa_GetHostApiInfo(deviceInfo->hostApi)->name );
|
||||
|
||||
|
||||
printf( "# suggested latency, half duplex PaStreamInfo::outputLatency, half duplex PaStreamInfo::inputLatency, full duplex PaStreamInfo::outputLatency, full duplex PaStreamInfo::inputLatency\n" );
|
||||
suggestedLatency = SUGGESTED_LATENCY_START_SECONDS;
|
||||
while( suggestedLatency <= SUGGESTED_LATENCY_END_SECONDS ){
|
||||
|
||||
outputParameters.suggestedLatency = suggestedLatency;
|
||||
inputParameters.suggestedLatency = suggestedLatency;
|
||||
|
||||
printf( "%f, ", suggestedLatency );
|
||||
|
||||
/* ------------------------------ output ------------------------------ */
|
||||
|
||||
err = Pa_OpenStream(
|
||||
&stream,
|
||||
NULL, /* no input */
|
||||
&outputParameters,
|
||||
sampleRate,
|
||||
framesPerBuffer,
|
||||
paClipOff, /* we won't output out of range samples so don't bother clipping them */
|
||||
patestCallback,
|
||||
0 );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
streamInfo = Pa_GetStreamInfo( stream );
|
||||
|
||||
printf( "%f,", streamInfo->outputLatency );
|
||||
|
||||
err = Pa_CloseStream( stream );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
/* ------------------------------ input ------------------------------ */
|
||||
|
||||
err = Pa_OpenStream(
|
||||
&stream,
|
||||
&inputParameters,
|
||||
NULL, /* no output */
|
||||
sampleRate,
|
||||
framesPerBuffer,
|
||||
paClipOff, /* we won't output out of range samples so don't bother clipping them */
|
||||
patestCallback,
|
||||
0 );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
streamInfo = Pa_GetStreamInfo( stream );
|
||||
|
||||
printf( "%f,", streamInfo->inputLatency );
|
||||
|
||||
err = Pa_CloseStream( stream );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
/* ------------------------------ full duplex ------------------------------ */
|
||||
|
||||
err = Pa_OpenStream(
|
||||
&stream,
|
||||
&inputParameters,
|
||||
&outputParameters,
|
||||
sampleRate,
|
||||
framesPerBuffer,
|
||||
paClipOff, /* we won't output out of range samples so don't bother clipping them */
|
||||
patestCallback,
|
||||
0 );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
streamInfo = Pa_GetStreamInfo( stream );
|
||||
|
||||
printf( "%f,%f", streamInfo->outputLatency, streamInfo->inputLatency );
|
||||
|
||||
err = Pa_CloseStream( stream );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
/* ------------------------------------------------------------ */
|
||||
|
||||
printf( "\n" );
|
||||
suggestedLatency += SUGGESTED_LATENCY_INCREMENT_SECONDS;
|
||||
}
|
||||
|
||||
Pa_Terminate();
|
||||
printf("# Test finished.\n");
|
||||
|
||||
return err;
|
||||
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 ) );
|
||||
return err;
|
||||
}
|
||||
|
||||
@@ -1,150 +1,150 @@
|
||||
#!/usr/bin/env python
|
||||
"""
|
||||
|
||||
Run and graph the results of patest_suggested_vs_streaminfo_latency.c
|
||||
|
||||
Requires matplotlib for plotting: http://matplotlib.sourceforge.net/
|
||||
|
||||
"""
|
||||
import os
|
||||
from pylab import *
|
||||
import numpy
|
||||
from matplotlib.backends.backend_pdf import PdfPages
|
||||
|
||||
testExeName = "PATest.exe" # rename to whatever the compiled patest_suggested_vs_streaminfo_latency.c binary is
|
||||
dataFileName = "patest_suggested_vs_streaminfo_latency.csv" # code below calls the exe to generate this file
|
||||
|
||||
inputDeviceIndex = -1 # -1 means default
|
||||
outputDeviceIndex = -1 # -1 means default
|
||||
sampleRate = 44100
|
||||
pdfFilenameSuffix = "_wmme"
|
||||
|
||||
pdfFile = PdfPages("patest_suggested_vs_streaminfo_latency_" + str(sampleRate) + pdfFilenameSuffix +".pdf") #output this pdf file
|
||||
|
||||
|
||||
def loadCsvData( dataFileName ):
|
||||
params= ""
|
||||
inputDevice = ""
|
||||
outputDevice = ""
|
||||
|
||||
startLines = file(dataFileName).readlines(1024)
|
||||
for line in startLines:
|
||||
if "output device" in line:
|
||||
outputDevice = line.strip(" \t\n\r#")
|
||||
if "input device" in line:
|
||||
inputDevice = line.strip(" \t\n\r#")
|
||||
params = startLines[0].strip(" \t\n\r#")
|
||||
|
||||
data = numpy.loadtxt(dataFileName, delimiter=",", skiprows=4).transpose()
|
||||
|
||||
class R(object): pass
|
||||
result = R()
|
||||
result.params = params
|
||||
for s in params.split(','):
|
||||
if "sample rate" in s:
|
||||
result.sampleRate = s
|
||||
|
||||
result.inputDevice = inputDevice
|
||||
result.outputDevice = outputDevice
|
||||
result.suggestedLatency = data[0]
|
||||
result.halfDuplexOutputLatency = data[1]
|
||||
result.halfDuplexInputLatency = data[2]
|
||||
result.fullDuplexOutputLatency = data[3]
|
||||
result.fullDuplexInputLatency = data[4]
|
||||
return result;
|
||||
|
||||
|
||||
def setFigureTitleAndAxisLabels( framesPerBufferString ):
|
||||
title("PortAudio suggested (requested) vs. resulting (reported) stream latency\n" + framesPerBufferString)
|
||||
ylabel("PaStreamInfo::{input,output}Latency (s)")
|
||||
xlabel("Pa_OpenStream suggestedLatency (s)")
|
||||
grid(True)
|
||||
legend(loc="upper left")
|
||||
|
||||
def setDisplayRangeSeconds( maxSeconds ):
|
||||
xlim(0, maxSeconds)
|
||||
ylim(0, maxSeconds)
|
||||
|
||||
|
||||
# run the test with different frames per buffer values:
|
||||
|
||||
compositeTestFramesPerBufferValues = [0]
|
||||
# powers of two
|
||||
for i in range (1,11):
|
||||
compositeTestFramesPerBufferValues.append( pow(2,i) )
|
||||
|
||||
# multiples of 50
|
||||
for i in range (1,20):
|
||||
compositeTestFramesPerBufferValues.append( i * 50 )
|
||||
|
||||
# 10ms buffer sizes
|
||||
compositeTestFramesPerBufferValues.append( 441 )
|
||||
compositeTestFramesPerBufferValues.append( 882 )
|
||||
|
||||
# large primes
|
||||
#compositeTestFramesPerBufferValues.append( 39209 )
|
||||
#compositeTestFramesPerBufferValues.append( 37537 )
|
||||
#compositeTestFramesPerBufferValues.append( 26437 )
|
||||
|
||||
individualPlotFramesPerBufferValues = [0,64,128,256,512] #output separate plots for these
|
||||
|
||||
isFirst = True
|
||||
|
||||
for framesPerBuffer in compositeTestFramesPerBufferValues:
|
||||
commandString = testExeName + " " + str(inputDeviceIndex) + " " + str(outputDeviceIndex) + " " + str(sampleRate) + " " + str(framesPerBuffer) + ' > ' + dataFileName
|
||||
print commandString
|
||||
os.system(commandString)
|
||||
|
||||
d = loadCsvData(dataFileName)
|
||||
|
||||
if isFirst:
|
||||
figure(1) # title sheet
|
||||
gcf().text(0.1, 0.0,
|
||||
"patest_suggested_vs_streaminfo_latency\n%s\n%s\n%s\n"%(d.inputDevice,d.outputDevice,d.sampleRate))
|
||||
pdfFile.savefig()
|
||||
|
||||
|
||||
figure(2) # composite plot, includes all compositeTestFramesPerBufferValues
|
||||
|
||||
if isFirst:
|
||||
plot( d.suggestedLatency, d.suggestedLatency, label="Suggested latency" )
|
||||
|
||||
plot( d.suggestedLatency, d.halfDuplexOutputLatency )
|
||||
plot( d.suggestedLatency, d.halfDuplexInputLatency )
|
||||
plot( d.suggestedLatency, d.fullDuplexOutputLatency )
|
||||
plot( d.suggestedLatency, d.fullDuplexInputLatency )
|
||||
|
||||
if framesPerBuffer in individualPlotFramesPerBufferValues: # individual plots
|
||||
figure( 3 + individualPlotFramesPerBufferValues.index(framesPerBuffer) )
|
||||
|
||||
plot( d.suggestedLatency, d.suggestedLatency, label="Suggested latency" )
|
||||
plot( d.suggestedLatency, d.halfDuplexOutputLatency, label="Half-duplex output latency" )
|
||||
plot( d.suggestedLatency, d.halfDuplexInputLatency, label="Half-duplex input latency" )
|
||||
plot( d.suggestedLatency, d.fullDuplexOutputLatency, label="Full-duplex output latency" )
|
||||
plot( d.suggestedLatency, d.fullDuplexInputLatency, label="Full-duplex input latency" )
|
||||
|
||||
if framesPerBuffer == 0:
|
||||
framesPerBufferText = "paFramesPerBufferUnspecified"
|
||||
else:
|
||||
framesPerBufferText = str(framesPerBuffer)
|
||||
setFigureTitleAndAxisLabels( "user frames per buffer: "+str(framesPerBufferText) )
|
||||
setDisplayRangeSeconds(2.2)
|
||||
pdfFile.savefig()
|
||||
setDisplayRangeSeconds(0.1)
|
||||
setFigureTitleAndAxisLabels( "user frames per buffer: "+str(framesPerBufferText)+" (detail)" )
|
||||
pdfFile.savefig()
|
||||
|
||||
isFirst = False
|
||||
|
||||
figure(2)
|
||||
setFigureTitleAndAxisLabels( "composite of frames per buffer values:\n"+str(compositeTestFramesPerBufferValues) )
|
||||
setDisplayRangeSeconds(2.2)
|
||||
pdfFile.savefig()
|
||||
setDisplayRangeSeconds(0.1)
|
||||
setFigureTitleAndAxisLabels( "composite of frames per buffer values:\n"+str(compositeTestFramesPerBufferValues)+" (detail)" )
|
||||
pdfFile.savefig()
|
||||
|
||||
pdfFile.close()
|
||||
|
||||
#uncomment this to display interactively, otherwise we just output a pdf
|
||||
#show()
|
||||
#!/usr/bin/env python
|
||||
"""
|
||||
|
||||
Run and graph the results of patest_suggested_vs_streaminfo_latency.c
|
||||
|
||||
Requires matplotlib for plotting: http://matplotlib.sourceforge.net/
|
||||
|
||||
"""
|
||||
import os
|
||||
from pylab import *
|
||||
import numpy
|
||||
from matplotlib.backends.backend_pdf import PdfPages
|
||||
|
||||
testExeName = "PATest.exe" # rename to whatever the compiled patest_suggested_vs_streaminfo_latency.c binary is
|
||||
dataFileName = "patest_suggested_vs_streaminfo_latency.csv" # code below calls the exe to generate this file
|
||||
|
||||
inputDeviceIndex = -1 # -1 means default
|
||||
outputDeviceIndex = -1 # -1 means default
|
||||
sampleRate = 44100
|
||||
pdfFilenameSuffix = "_wmme"
|
||||
|
||||
pdfFile = PdfPages("patest_suggested_vs_streaminfo_latency_" + str(sampleRate) + pdfFilenameSuffix +".pdf") #output this pdf file
|
||||
|
||||
|
||||
def loadCsvData( dataFileName ):
|
||||
params= ""
|
||||
inputDevice = ""
|
||||
outputDevice = ""
|
||||
|
||||
startLines = file(dataFileName).readlines(1024)
|
||||
for line in startLines:
|
||||
if "output device" in line:
|
||||
outputDevice = line.strip(" \t\n\r#")
|
||||
if "input device" in line:
|
||||
inputDevice = line.strip(" \t\n\r#")
|
||||
params = startLines[0].strip(" \t\n\r#")
|
||||
|
||||
data = numpy.loadtxt(dataFileName, delimiter=",", skiprows=4).transpose()
|
||||
|
||||
class R(object): pass
|
||||
result = R()
|
||||
result.params = params
|
||||
for s in params.split(','):
|
||||
if "sample rate" in s:
|
||||
result.sampleRate = s
|
||||
|
||||
result.inputDevice = inputDevice
|
||||
result.outputDevice = outputDevice
|
||||
result.suggestedLatency = data[0]
|
||||
result.halfDuplexOutputLatency = data[1]
|
||||
result.halfDuplexInputLatency = data[2]
|
||||
result.fullDuplexOutputLatency = data[3]
|
||||
result.fullDuplexInputLatency = data[4]
|
||||
return result;
|
||||
|
||||
|
||||
def setFigureTitleAndAxisLabels( framesPerBufferString ):
|
||||
title("PortAudio suggested (requested) vs. resulting (reported) stream latency\n" + framesPerBufferString)
|
||||
ylabel("PaStreamInfo::{input,output}Latency (s)")
|
||||
xlabel("Pa_OpenStream suggestedLatency (s)")
|
||||
grid(True)
|
||||
legend(loc="upper left")
|
||||
|
||||
def setDisplayRangeSeconds( maxSeconds ):
|
||||
xlim(0, maxSeconds)
|
||||
ylim(0, maxSeconds)
|
||||
|
||||
|
||||
# run the test with different frames per buffer values:
|
||||
|
||||
compositeTestFramesPerBufferValues = [0]
|
||||
# powers of two
|
||||
for i in range (1,11):
|
||||
compositeTestFramesPerBufferValues.append( pow(2,i) )
|
||||
|
||||
# multiples of 50
|
||||
for i in range (1,20):
|
||||
compositeTestFramesPerBufferValues.append( i * 50 )
|
||||
|
||||
# 10ms buffer sizes
|
||||
compositeTestFramesPerBufferValues.append( 441 )
|
||||
compositeTestFramesPerBufferValues.append( 882 )
|
||||
|
||||
# large primes
|
||||
#compositeTestFramesPerBufferValues.append( 39209 )
|
||||
#compositeTestFramesPerBufferValues.append( 37537 )
|
||||
#compositeTestFramesPerBufferValues.append( 26437 )
|
||||
|
||||
individualPlotFramesPerBufferValues = [0,64,128,256,512] #output separate plots for these
|
||||
|
||||
isFirst = True
|
||||
|
||||
for framesPerBuffer in compositeTestFramesPerBufferValues:
|
||||
commandString = testExeName + " " + str(inputDeviceIndex) + " " + str(outputDeviceIndex) + " " + str(sampleRate) + " " + str(framesPerBuffer) + ' > ' + dataFileName
|
||||
print commandString
|
||||
os.system(commandString)
|
||||
|
||||
d = loadCsvData(dataFileName)
|
||||
|
||||
if isFirst:
|
||||
figure(1) # title sheet
|
||||
gcf().text(0.1, 0.0,
|
||||
"patest_suggested_vs_streaminfo_latency\n%s\n%s\n%s\n"%(d.inputDevice,d.outputDevice,d.sampleRate))
|
||||
pdfFile.savefig()
|
||||
|
||||
|
||||
figure(2) # composite plot, includes all compositeTestFramesPerBufferValues
|
||||
|
||||
if isFirst:
|
||||
plot( d.suggestedLatency, d.suggestedLatency, label="Suggested latency" )
|
||||
|
||||
plot( d.suggestedLatency, d.halfDuplexOutputLatency )
|
||||
plot( d.suggestedLatency, d.halfDuplexInputLatency )
|
||||
plot( d.suggestedLatency, d.fullDuplexOutputLatency )
|
||||
plot( d.suggestedLatency, d.fullDuplexInputLatency )
|
||||
|
||||
if framesPerBuffer in individualPlotFramesPerBufferValues: # individual plots
|
||||
figure( 3 + individualPlotFramesPerBufferValues.index(framesPerBuffer) )
|
||||
|
||||
plot( d.suggestedLatency, d.suggestedLatency, label="Suggested latency" )
|
||||
plot( d.suggestedLatency, d.halfDuplexOutputLatency, label="Half-duplex output latency" )
|
||||
plot( d.suggestedLatency, d.halfDuplexInputLatency, label="Half-duplex input latency" )
|
||||
plot( d.suggestedLatency, d.fullDuplexOutputLatency, label="Full-duplex output latency" )
|
||||
plot( d.suggestedLatency, d.fullDuplexInputLatency, label="Full-duplex input latency" )
|
||||
|
||||
if framesPerBuffer == 0:
|
||||
framesPerBufferText = "paFramesPerBufferUnspecified"
|
||||
else:
|
||||
framesPerBufferText = str(framesPerBuffer)
|
||||
setFigureTitleAndAxisLabels( "user frames per buffer: "+str(framesPerBufferText) )
|
||||
setDisplayRangeSeconds(2.2)
|
||||
pdfFile.savefig()
|
||||
setDisplayRangeSeconds(0.1)
|
||||
setFigureTitleAndAxisLabels( "user frames per buffer: "+str(framesPerBufferText)+" (detail)" )
|
||||
pdfFile.savefig()
|
||||
|
||||
isFirst = False
|
||||
|
||||
figure(2)
|
||||
setFigureTitleAndAxisLabels( "composite of frames per buffer values:\n"+str(compositeTestFramesPerBufferValues) )
|
||||
setDisplayRangeSeconds(2.2)
|
||||
pdfFile.savefig()
|
||||
setDisplayRangeSeconds(0.1)
|
||||
setFigureTitleAndAxisLabels( "composite of frames per buffer values:\n"+str(compositeTestFramesPerBufferValues)+" (detail)" )
|
||||
pdfFile.savefig()
|
||||
|
||||
pdfFile.close()
|
||||
|
||||
#uncomment this to display interactively, otherwise we just output a pdf
|
||||
#show()
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@@ -1,192 +1,192 @@
|
||||
/*
|
||||
* $Id: $
|
||||
* Portable Audio I/O Library
|
||||
* Windows MME low level buffer parameters test
|
||||
*
|
||||
* Copyright (c) 2007 Ross Bencina
|
||||
*
|
||||
* 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 <math.h>
|
||||
|
||||
#include <windows.h> /* required when using pa_win_wmme.h */
|
||||
#include <mmsystem.h> /* required when using pa_win_wmme.h */
|
||||
|
||||
#include "portaudio.h"
|
||||
#include "pa_win_wmme.h"
|
||||
|
||||
#define NUM_SECONDS (6)
|
||||
#define SAMPLE_RATE (44100)
|
||||
|
||||
#define WMME_FRAMES_PER_BUFFER (440)
|
||||
#define WMME_BUFFER_COUNT (6)
|
||||
|
||||
#define FRAMES_PER_BUFFER WMME_FRAMES_PER_BUFFER /* hardwire portaudio callback buffer size to WMME buffer size for this test */
|
||||
|
||||
#ifndef M_PI
|
||||
#define M_PI (3.14159265)
|
||||
#endif
|
||||
|
||||
#define TABLE_SIZE (2048)
|
||||
|
||||
#define CHANNEL_COUNT (2)
|
||||
|
||||
|
||||
typedef struct
|
||||
{
|
||||
float sine[TABLE_SIZE];
|
||||
double phase;
|
||||
}
|
||||
paTestData;
|
||||
|
||||
/* This routine will be called by the PortAudio engine when audio is needed.
|
||||
** It may 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 patestCallback( const void *inputBuffer, void *outputBuffer,
|
||||
unsigned long framesPerBuffer,
|
||||
const PaStreamCallbackTimeInfo* timeInfo,
|
||||
PaStreamCallbackFlags statusFlags,
|
||||
void *userData )
|
||||
{
|
||||
paTestData *data = (paTestData*)userData;
|
||||
float *out = (float*)outputBuffer;
|
||||
unsigned long i,j;
|
||||
|
||||
(void) timeInfo; /* Prevent unused variable warnings. */
|
||||
(void) statusFlags;
|
||||
(void) inputBuffer;
|
||||
|
||||
for( i=0; i<framesPerBuffer; i++ )
|
||||
{
|
||||
float x = data->sine[(int)data->phase];
|
||||
data->phase += 20;
|
||||
if( data->phase >= TABLE_SIZE ){
|
||||
data->phase -= TABLE_SIZE;
|
||||
}
|
||||
|
||||
for( j = 0; j < CHANNEL_COUNT; ++j ){
|
||||
*out++ = x;
|
||||
}
|
||||
}
|
||||
|
||||
return paContinue;
|
||||
}
|
||||
|
||||
/*******************************************************************/
|
||||
int main(int argc, char* argv[])
|
||||
{
|
||||
PaStreamParameters outputParameters;
|
||||
PaWinMmeStreamInfo wmmeStreamInfo;
|
||||
PaStream *stream;
|
||||
PaError err;
|
||||
paTestData data;
|
||||
int i;
|
||||
int deviceIndex;
|
||||
|
||||
printf("PortAudio Test: output a sine blip on each channel. SR = %d, BufSize = %d, Chans = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER, CHANNEL_COUNT);
|
||||
|
||||
err = Pa_Initialize();
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
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 );
|
||||
|
||||
/* 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;
|
||||
|
||||
outputParameters.device = deviceIndex;
|
||||
outputParameters.channelCount = CHANNEL_COUNT;
|
||||
outputParameters.sampleFormat = paFloat32; /* 32 bit floating point processing */
|
||||
outputParameters.suggestedLatency = 0; /*Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;*/
|
||||
outputParameters.hostApiSpecificStreamInfo = NULL;
|
||||
|
||||
wmmeStreamInfo.size = sizeof(PaWinMmeStreamInfo);
|
||||
wmmeStreamInfo.hostApiType = paMME;
|
||||
wmmeStreamInfo.version = 1;
|
||||
wmmeStreamInfo.flags = paWinMmeUseLowLevelLatencyParameters | paWinMmeDontThrottleOverloadedProcessingThread;
|
||||
wmmeStreamInfo.framesPerBuffer = WMME_FRAMES_PER_BUFFER;
|
||||
wmmeStreamInfo.bufferCount = WMME_BUFFER_COUNT;
|
||||
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 );
|
||||
}
|
||||
|
||||
err = Pa_OpenStream(
|
||||
&stream,
|
||||
NULL, /* no input */
|
||||
&outputParameters,
|
||||
SAMPLE_RATE,
|
||||
FRAMES_PER_BUFFER,
|
||||
paClipOff, /* we won't output out of range samples so don't bother clipping them */
|
||||
patestCallback,
|
||||
&data );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
err = Pa_StartStream( stream );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
printf("Play for %d seconds.\n", NUM_SECONDS );
|
||||
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;
|
||||
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 ) );
|
||||
return err;
|
||||
}
|
||||
|
||||
/*
|
||||
* $Id: $
|
||||
* Portable Audio I/O Library
|
||||
* Windows MME low level buffer parameters test
|
||||
*
|
||||
* Copyright (c) 2007 Ross Bencina
|
||||
*
|
||||
* 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 <math.h>
|
||||
|
||||
#include <windows.h> /* required when using pa_win_wmme.h */
|
||||
#include <mmsystem.h> /* required when using pa_win_wmme.h */
|
||||
|
||||
#include "portaudio.h"
|
||||
#include "pa_win_wmme.h"
|
||||
|
||||
#define NUM_SECONDS (6)
|
||||
#define SAMPLE_RATE (44100)
|
||||
|
||||
#define WMME_FRAMES_PER_BUFFER (440)
|
||||
#define WMME_BUFFER_COUNT (6)
|
||||
|
||||
#define FRAMES_PER_BUFFER WMME_FRAMES_PER_BUFFER /* hardwire portaudio callback buffer size to WMME buffer size for this test */
|
||||
|
||||
#ifndef M_PI
|
||||
#define M_PI (3.14159265)
|
||||
#endif
|
||||
|
||||
#define TABLE_SIZE (2048)
|
||||
|
||||
#define CHANNEL_COUNT (2)
|
||||
|
||||
|
||||
typedef struct
|
||||
{
|
||||
float sine[TABLE_SIZE];
|
||||
double phase;
|
||||
}
|
||||
paTestData;
|
||||
|
||||
/* This routine will be called by the PortAudio engine when audio is needed.
|
||||
** It may 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 patestCallback( const void *inputBuffer, void *outputBuffer,
|
||||
unsigned long framesPerBuffer,
|
||||
const PaStreamCallbackTimeInfo* timeInfo,
|
||||
PaStreamCallbackFlags statusFlags,
|
||||
void *userData )
|
||||
{
|
||||
paTestData *data = (paTestData*)userData;
|
||||
float *out = (float*)outputBuffer;
|
||||
unsigned long i,j;
|
||||
|
||||
(void) timeInfo; /* Prevent unused variable warnings. */
|
||||
(void) statusFlags;
|
||||
(void) inputBuffer;
|
||||
|
||||
for( i=0; i<framesPerBuffer; i++ )
|
||||
{
|
||||
float x = data->sine[(int)data->phase];
|
||||
data->phase += 20;
|
||||
if( data->phase >= TABLE_SIZE ){
|
||||
data->phase -= TABLE_SIZE;
|
||||
}
|
||||
|
||||
for( j = 0; j < CHANNEL_COUNT; ++j ){
|
||||
*out++ = x;
|
||||
}
|
||||
}
|
||||
|
||||
return paContinue;
|
||||
}
|
||||
|
||||
/*******************************************************************/
|
||||
int main(int argc, char* argv[])
|
||||
{
|
||||
PaStreamParameters outputParameters;
|
||||
PaWinMmeStreamInfo wmmeStreamInfo;
|
||||
PaStream *stream;
|
||||
PaError err;
|
||||
paTestData data;
|
||||
int i;
|
||||
int deviceIndex;
|
||||
|
||||
printf("PortAudio Test: output a sine blip on each channel. SR = %d, BufSize = %d, Chans = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER, CHANNEL_COUNT);
|
||||
|
||||
err = Pa_Initialize();
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
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 );
|
||||
|
||||
/* 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;
|
||||
|
||||
outputParameters.device = deviceIndex;
|
||||
outputParameters.channelCount = CHANNEL_COUNT;
|
||||
outputParameters.sampleFormat = paFloat32; /* 32 bit floating point processing */
|
||||
outputParameters.suggestedLatency = 0; /*Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;*/
|
||||
outputParameters.hostApiSpecificStreamInfo = NULL;
|
||||
|
||||
wmmeStreamInfo.size = sizeof(PaWinMmeStreamInfo);
|
||||
wmmeStreamInfo.hostApiType = paMME;
|
||||
wmmeStreamInfo.version = 1;
|
||||
wmmeStreamInfo.flags = paWinMmeUseLowLevelLatencyParameters | paWinMmeDontThrottleOverloadedProcessingThread;
|
||||
wmmeStreamInfo.framesPerBuffer = WMME_FRAMES_PER_BUFFER;
|
||||
wmmeStreamInfo.bufferCount = WMME_BUFFER_COUNT;
|
||||
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 );
|
||||
}
|
||||
|
||||
err = Pa_OpenStream(
|
||||
&stream,
|
||||
NULL, /* no input */
|
||||
&outputParameters,
|
||||
SAMPLE_RATE,
|
||||
FRAMES_PER_BUFFER,
|
||||
paClipOff, /* we won't output out of range samples so don't bother clipping them */
|
||||
patestCallback,
|
||||
&data );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
err = Pa_StartStream( stream );
|
||||
if( err != paNoError ) goto error;
|
||||
|
||||
printf("Play for %d seconds.\n", NUM_SECONDS );
|
||||
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;
|
||||
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 ) );
|
||||
return err;
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user