?? paqa_errs.c
字號:
/* * $Id: paqa_errs.c,v 1.2 2003/03/02 08:01:41 dmazzoni Exp $ * paqa_devs.c * Self Testing Quality Assurance app for PortAudio * Do lots of bad things to test error reporting. * * Author: Phil Burk http://www.softsynth.com * * This program uses the PortAudio Portable Audio Library. * For more information see: http://www.portaudio.com * Copyright (c) 1999-2000 Ross Bencina and Phil Burk * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files * (the "Software"), to deal in the Software without restriction, * including without limitation the rights to use, copy, modify, merge, * publish, distribute, sublicense, and/or sell copies of the Software, * and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * Any person wishing to distribute modifications to the Software is * requested to send the modifications to the original developer so that * they can be incorporated into the canonical version. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */#include <stdio.h>#include <math.h>#include "portaudio.h"/****************************************** Definitions ***********/#define MODE_INPUT (0)#define MODE_OUTPUT (1)#define FRAMES_PER_BUFFER (64)#define SAMPLE_RATE (44100.0)#define NUM_BUFFERS (0)typedef struct PaQaData{ unsigned long framesLeft; int numChannels; int bytesPerSample; int mode;}PaQaData;/****************************************** Prototypes ***********/static void TestDevices( int mode );static void TestFormats( int mode, PaDeviceID deviceID, double sampleRate, int numChannels );static int TestBadOpens( void );static int TestBadActions( void );static int QaCallback( void *inputBuffer, void *outputBuffer, unsigned long framesPerBuffer, PaTimestamp outTime, void *userData );/****************************************** Globals ***********/static int gNumPassed = 0;static int gNumFailed = 0;/****************************************** Macros ***********//* Print ERROR if it fails. Tally success or failure. *//* Odd do-while wrapper seems to be needed for some compilers. */#define EXPECT( msg, _exp) \ do \ { \ if ((_exp)) {\ gNumPassed++; \ } \ else { \ printf("\nERROR %s\n - 0x%x - %s for %s\n", (msg), result, Pa_GetErrorText(result), #_exp ); \ gNumFailed++; \ goto error; \ } \ } while(0)#define HOPEFOR( msg, _exp) \ do \ { \ if ((_exp)) {\ gNumPassed++; \ } \ else { \ printf("\nERROR %s\n - 0x%x - %s for %s\n", (msg), result, Pa_GetErrorText(result), #_exp ); \ gNumFailed++; \ } \ } while(0)/*******************************************************************//* This routine will be called by the PortAudio engine when audio is needed.** It may be called at interrupt level on some machines so don't do anything** that could mess up the system like calling malloc() or free().*/static int QaCallback( void *inputBuffer, void *outputBuffer, unsigned long framesPerBuffer, PaTimestamp outTime, void *userData ){ unsigned long i; unsigned char *out = (unsigned char *) outputBuffer; PaQaData *data = (PaQaData *) userData; (void) inputBuffer; /* Prevent "unused variable" warnings. */ (void) outTime; /* Zero out buffer so we don't hear terrible noise. */ if( data->mode == MODE_OUTPUT ) { unsigned long numBytes = framesPerBuffer * data->numChannels * data->bytesPerSample; for( i=0; i<numBytes; i++ ) { *out++ = 0; } } /* Are we through yet? */ if( data->framesLeft > framesPerBuffer ) { data->framesLeft -= framesPerBuffer; return 0; } else { data->framesLeft = 0; return 1; }}/*******************************************************************/int main(void);int main(void){ PaError result; EXPECT( "init", ((result=Pa_Initialize()) == 0) ); TestBadActions(); TestBadOpens();error: Pa_Terminate(); printf("QA Report: %d passed, %d failed.\n", gNumPassed, gNumFailed ); return 0;}/*******************************************************************/static int TestBadOpens( void ){ PortAudioStream *stream = NULL; PaError result; PaQaData myData; /* Setup data for synthesis thread. */ myData.framesLeft = (unsigned long) (SAMPLE_RATE * 100); /* 100 seconds */ myData.numChannels = 1; myData.mode = MODE_OUTPUT; HOPEFOR( "No devices specified.",( (result = Pa_OpenStream( &stream, paNoDevice, 0, paFloat32, NULL, paNoDevice, 0, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paInvalidDeviceId) ); HOPEFOR( "Out of range input device specified.",( (result = Pa_OpenStream( &stream, Pa_CountDevices(), 0, paFloat32, NULL, paNoDevice, 0, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paInvalidDeviceId) ); HOPEFOR( "Out of range output device specified.",( (result = Pa_OpenStream( &stream, paNoDevice, 0, paFloat32, NULL, Pa_CountDevices(), 0, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paInvalidDeviceId) ); HOPEFOR( "Zero input channels.",( (result = Pa_OpenStream( &stream, Pa_GetDefaultInputDeviceID(), 0, paFloat32, NULL, paNoDevice, 0, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paInvalidChannelCount) ); HOPEFOR( "Zero output channels.",( (result = Pa_OpenStream( &stream, paNoDevice, 0, paFloat32, NULL, Pa_GetDefaultOutputDeviceID(), 0, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paInvalidChannelCount) ); HOPEFOR( "Nonzero input channels but no device.",( (result = Pa_OpenStream( &stream, Pa_GetDefaultInputDeviceID(), 2, paFloat32, NULL, paNoDevice, 2, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paInvalidChannelCount) ); HOPEFOR( "Nonzero output channels but no device.",( (result = Pa_OpenStream( &stream, paNoDevice, 2, paFloat32, NULL, Pa_GetDefaultOutputDeviceID(), 2, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paInvalidChannelCount) ); HOPEFOR( "NULL stream pointer.",( (result = Pa_OpenStream( NULL, paNoDevice, 0, paFloat32, NULL, Pa_GetDefaultOutputDeviceID(), 2, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paBadStreamPtr) ); HOPEFOR( "Low sample rate.",( (result = Pa_OpenStream( &stream, paNoDevice, 0, paFloat32, NULL, Pa_GetDefaultOutputDeviceID(), 2, paFloat32, NULL, 1.0, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paInvalidSampleRate) ); HOPEFOR( "High sample rate.",( (result = Pa_OpenStream( &stream, paNoDevice, 0, paFloat32, NULL, Pa_GetDefaultOutputDeviceID(), 2, paFloat32, NULL, 10000000.0, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paInvalidSampleRate) ); HOPEFOR( "NULL callback.",( (result = Pa_OpenStream( &stream, paNoDevice, 0, paFloat32, NULL, Pa_GetDefaultOutputDeviceID(), 2, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, NULL, &myData ) ) == paNullCallback) ); HOPEFOR( "Bad flag.",( (result = Pa_OpenStream( &stream, paNoDevice, 0, paFloat32, NULL, Pa_GetDefaultOutputDeviceID(), 2, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, (1<<3), QaCallback, &myData ) ) == paInvalidFlag) );#if 1 /* FIXME - this is legal for some implementations. */ HOPEFOR( "Use input device as output device.",( (result = Pa_OpenStream( &stream, paNoDevice, 0, paFloat32, NULL, Pa_GetDefaultInputDeviceID(), 2, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paInvalidDeviceId) ); HOPEFOR( "Use output device as input device.",( (result = Pa_OpenStream( &stream, Pa_GetDefaultOutputDeviceID(), 2, paFloat32, NULL, paNoDevice, 0, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == paInvalidDeviceId) );#endif if( stream != NULL ) Pa_CloseStream( stream ); return result;}/*******************************************************************/static int TestBadActions( void ){ PortAudioStream *stream = NULL; PaError result; PaQaData myData; /* Setup data for synthesis thread. */ myData.framesLeft = (unsigned long) (SAMPLE_RATE * 100); /* 100 seconds */ myData.numChannels = 1; myData.mode = MODE_OUTPUT; /* Default output. */ EXPECT( "TestBadActions", ((result = Pa_OpenStream( &stream, paNoDevice, 0, paFloat32, NULL, Pa_GetDefaultOutputDeviceID(), 2, paFloat32, NULL, SAMPLE_RATE, FRAMES_PER_BUFFER, NUM_BUFFERS, paClipOff, QaCallback, &myData ) ) == 0) ); HOPEFOR( "start", ((result = Pa_StartStream( NULL )) == paBadStreamPtr) ); HOPEFOR( "stop", ((result = Pa_StopStream( NULL )) == paBadStreamPtr) ); HOPEFOR( "active?", ((result = Pa_StreamActive( NULL )) == paBadStreamPtr) ); HOPEFOR( "close", ((result = Pa_CloseStream( NULL )) == paBadStreamPtr) ); HOPEFOR( "time?", ((result = (PaError)Pa_StreamTime( NULL )) != 0) ); HOPEFOR( "CPULoad?", ((result = (PaError)Pa_GetCPULoad( NULL )) != 0) );error: if( stream != NULL ) Pa_CloseStream( stream ); return result;}?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -