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Merged
merged 1 commit into from
Oct 15, 2017
Merged

switch to cffi out-of-line ABI mode #102

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1 change: 1 addition & 0 deletions MANIFEST.in
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
include LICENSE
include *.rst
include doc/requirements.txt
include sounddevice_build.py
recursive-include doc *.rst *.py
recursive-include examples *.py
2 changes: 2 additions & 0 deletions setup.py
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Original file line number Diff line number Diff line change
Expand Up @@ -71,8 +71,10 @@ def get_tag(self):
packages=packages,
package_data=package_data,
zip_safe=zip_safe,
setup_requires=["CFFI>=1.0"],
install_requires=['CFFI>=1.0'],
extras_require={'NumPy': ['NumPy']},
cffi_modules=["sounddevice_build.py:ffibuilder"],
author='Matthias Geier',
author_email='Matthias.Geier@gmail.com',
description='Play and Record Sound with Python',
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326 changes: 6 additions & 320 deletions sounddevice.py
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Original file line number Diff line number Diff line change
Expand Up @@ -26,321 +26,15 @@
__version__ = '0.3.8'

import atexit as _atexit
from cffi import FFI as _FFI
import os as _os
import platform as _platform
import sys as _sys
from ctypes.util import find_library as _find_library
from _sounddevice import ffi as _ffi

_ffi = _FFI()
_ffi.cdef("""
int Pa_GetVersion( void );
const char* Pa_GetVersionText( void );
typedef int PaError;
typedef enum PaErrorCode
{
paNoError = 0,
paNotInitialized = -10000,
paUnanticipatedHostError,
paInvalidChannelCount,
paInvalidSampleRate,
paInvalidDevice,
paInvalidFlag,
paSampleFormatNotSupported,
paBadIODeviceCombination,
paInsufficientMemory,
paBufferTooBig,
paBufferTooSmall,
paNullCallback,
paBadStreamPtr,
paTimedOut,
paInternalError,
paDeviceUnavailable,
paIncompatibleHostApiSpecificStreamInfo,
paStreamIsStopped,
paStreamIsNotStopped,
paInputOverflowed,
paOutputUnderflowed,
paHostApiNotFound,
paInvalidHostApi,
paCanNotReadFromACallbackStream,
paCanNotWriteToACallbackStream,
paCanNotReadFromAnOutputOnlyStream,
paCanNotWriteToAnInputOnlyStream,
paIncompatibleStreamHostApi,
paBadBufferPtr
} PaErrorCode;
const char *Pa_GetErrorText( PaError errorCode );
PaError Pa_Initialize( void );
PaError Pa_Terminate( void );
typedef int PaDeviceIndex;
#define paNoDevice -1
#define paUseHostApiSpecificDeviceSpecification -2
typedef int PaHostApiIndex;
PaHostApiIndex Pa_GetHostApiCount( void );
PaHostApiIndex Pa_GetDefaultHostApi( void );
typedef enum PaHostApiTypeId
{
paInDevelopment=0,
paDirectSound=1,
paMME=2,
paASIO=3,
paSoundManager=4,
paCoreAudio=5,
paOSS=7,
paALSA=8,
paAL=9,
paBeOS=10,
paWDMKS=11,
paJACK=12,
paWASAPI=13,
paAudioScienceHPI=14
} PaHostApiTypeId;
typedef struct PaHostApiInfo
{
int structVersion;
PaHostApiTypeId type;
const char *name;
int deviceCount;
PaDeviceIndex defaultInputDevice;
PaDeviceIndex defaultOutputDevice;
} PaHostApiInfo;
const PaHostApiInfo * Pa_GetHostApiInfo( PaHostApiIndex hostApi );
PaHostApiIndex Pa_HostApiTypeIdToHostApiIndex( PaHostApiTypeId type );
PaDeviceIndex Pa_HostApiDeviceIndexToDeviceIndex( PaHostApiIndex hostApi,
int hostApiDeviceIndex );
typedef struct PaHostErrorInfo{
PaHostApiTypeId hostApiType;
long errorCode;
const char *errorText;
}PaHostErrorInfo;
const PaHostErrorInfo* Pa_GetLastHostErrorInfo( void );
PaDeviceIndex Pa_GetDeviceCount( void );
PaDeviceIndex Pa_GetDefaultInputDevice( void );
PaDeviceIndex Pa_GetDefaultOutputDevice( void );
typedef double PaTime;
typedef unsigned long PaSampleFormat;
#define paFloat32 0x00000001
#define paInt32 0x00000002
#define paInt24 0x00000004
#define paInt16 0x00000008
#define paInt8 0x00000010
#define paUInt8 0x00000020
#define paCustomFormat 0x00010000
#define paNonInterleaved 0x80000000
typedef struct PaDeviceInfo
{
int structVersion;
const char *name;
PaHostApiIndex hostApi;
int maxInputChannels;
int maxOutputChannels;
PaTime defaultLowInputLatency;
PaTime defaultLowOutputLatency;
PaTime defaultHighInputLatency;
PaTime defaultHighOutputLatency;
double defaultSampleRate;
} PaDeviceInfo;
const PaDeviceInfo* Pa_GetDeviceInfo( PaDeviceIndex device );
typedef struct PaStreamParameters
{
PaDeviceIndex device;
int channelCount;
PaSampleFormat sampleFormat;
PaTime suggestedLatency;
void *hostApiSpecificStreamInfo;
} PaStreamParameters;
#define paFormatIsSupported 0
PaError Pa_IsFormatSupported( const PaStreamParameters *inputParameters,
const PaStreamParameters *outputParameters,
double sampleRate );
typedef void PaStream;
#define paFramesPerBufferUnspecified 0
typedef unsigned long PaStreamFlags;
#define paNoFlag 0
#define paClipOff 0x00000001
#define paDitherOff 0x00000002
#define paNeverDropInput 0x00000004
#define paPrimeOutputBuffersUsingStreamCallback 0x00000008
#define paPlatformSpecificFlags 0xFFFF0000
typedef struct PaStreamCallbackTimeInfo{
PaTime inputBufferAdcTime;
PaTime currentTime;
PaTime outputBufferDacTime;
} PaStreamCallbackTimeInfo;
typedef unsigned long PaStreamCallbackFlags;
#define paInputUnderflow 0x00000001
#define paInputOverflow 0x00000002
#define paOutputUnderflow 0x00000004
#define paOutputOverflow 0x00000008
#define paPrimingOutput 0x00000010
typedef enum PaStreamCallbackResult
{
paContinue=0,
paComplete=1,
paAbort=2
} PaStreamCallbackResult;
typedef int PaStreamCallback(
const void *input, void *output,
unsigned long frameCount,
const PaStreamCallbackTimeInfo* timeInfo,
PaStreamCallbackFlags statusFlags,
void *userData );
PaError Pa_OpenStream( PaStream** stream,
const PaStreamParameters *inputParameters,
const PaStreamParameters *outputParameters,
double sampleRate,
unsigned long framesPerBuffer,
PaStreamFlags streamFlags,
PaStreamCallback *streamCallback,
void *userData );
PaError Pa_OpenDefaultStream( PaStream** stream,
int numInputChannels,
int numOutputChannels,
PaSampleFormat sampleFormat,
double sampleRate,
unsigned long framesPerBuffer,
PaStreamCallback *streamCallback,
void *userData );
PaError Pa_CloseStream( PaStream *stream );
typedef void PaStreamFinishedCallback( void *userData );
PaError Pa_SetStreamFinishedCallback( PaStream *stream,
PaStreamFinishedCallback* streamFinishedCallback );
PaError Pa_StartStream( PaStream *stream );
PaError Pa_StopStream( PaStream *stream );
PaError Pa_AbortStream( PaStream *stream );
PaError Pa_IsStreamStopped( PaStream *stream );
PaError Pa_IsStreamActive( PaStream *stream );
typedef struct PaStreamInfo
{
int structVersion;
PaTime inputLatency;
PaTime outputLatency;
double sampleRate;
} PaStreamInfo;
const PaStreamInfo* Pa_GetStreamInfo( PaStream *stream );
PaTime Pa_GetStreamTime( PaStream *stream );
double Pa_GetStreamCpuLoad( PaStream* stream );
PaError Pa_ReadStream( PaStream* stream,
void *buffer,
unsigned long frames );
PaError Pa_WriteStream( PaStream* stream,
const void *buffer,
unsigned long frames );
signed long Pa_GetStreamReadAvailable( PaStream* stream );
signed long Pa_GetStreamWriteAvailable( PaStream* stream );
PaHostApiTypeId Pa_GetStreamHostApiType( PaStream* stream );
PaError Pa_GetSampleSize( PaSampleFormat format );
void Pa_Sleep( long msec );

/* pa_mac_core.h */

typedef int32_t SInt32;
typedef struct
{
unsigned long size;
PaHostApiTypeId hostApiType;
unsigned long version;
unsigned long flags;
SInt32 const * channelMap;
unsigned long channelMapSize;
} PaMacCoreStreamInfo;
void PaMacCore_SetupStreamInfo( PaMacCoreStreamInfo *data, unsigned long flags );
void PaMacCore_SetupChannelMap( PaMacCoreStreamInfo *data, const SInt32 * const channelMap, unsigned long channelMapSize );
const char *PaMacCore_GetChannelName( int device, int channelIndex, bool input );
#define paMacCoreChangeDeviceParameters 0x01
#define paMacCoreFailIfConversionRequired 0x02
#define paMacCoreConversionQualityMin 0x0100
#define paMacCoreConversionQualityMedium 0x0200
#define paMacCoreConversionQualityLow 0x0300
#define paMacCoreConversionQualityHigh 0x0400
#define paMacCoreConversionQualityMax 0x0000
#define paMacCorePlayNice 0x00
#define paMacCorePro 0x01
#define paMacCoreMinimizeCPUButPlayNice 0x0100
#define paMacCoreMinimizeCPU 0x0101

/* pa_win_waveformat.h */

typedef unsigned long PaWinWaveFormatChannelMask;

/* pa_asio.h */

#define paAsioUseChannelSelectors 0x01

typedef struct PaAsioStreamInfo
{
unsigned long size;
PaHostApiTypeId hostApiType;
unsigned long version;
unsigned long flags;
int *channelSelectors;
} PaAsioStreamInfo;

/* pa_win_wasapi.h */

typedef enum PaWasapiFlags
{
paWinWasapiExclusive = 1,
paWinWasapiRedirectHostProcessor = 2,
paWinWasapiUseChannelMask = 4,
paWinWasapiPolling = 8,
paWinWasapiThreadPriority = 16
} PaWasapiFlags;

typedef void (*PaWasapiHostProcessorCallback) (
void *inputBuffer, long inputFrames,
void *outputBuffer, long outputFrames, void *userData);

typedef enum PaWasapiThreadPriority
{
eThreadPriorityNone = 0,
eThreadPriorityAudio,
eThreadPriorityCapture,
eThreadPriorityDistribution,
eThreadPriorityGames,
eThreadPriorityPlayback,
eThreadPriorityProAudio,
eThreadPriorityWindowManager
} PaWasapiThreadPriority;

typedef enum PaWasapiStreamCategory
{
eAudioCategoryOther = 0,
eAudioCategoryCommunications = 3,
eAudioCategoryAlerts = 4,
eAudioCategorySoundEffects = 5,
eAudioCategoryGameEffects = 6,
eAudioCategoryGameMedia = 7,
eAudioCategoryGameChat = 8,
eAudioCategorySpeech = 9,
eAudioCategoryMovie = 10,
eAudioCategoryMedia = 11
} PaWasapiStreamCategory;

typedef enum PaWasapiStreamOption
{
eStreamOptionNone = 0,
eStreamOptionRaw = 1,
eStreamOptionMatchFormat = 2
} PaWasapiStreamOption;

typedef struct PaWasapiStreamInfo
{
unsigned long size;
PaHostApiTypeId hostApiType;
unsigned long version;
unsigned long flags;
PaWinWaveFormatChannelMask channelMask;
PaWasapiHostProcessorCallback hostProcessorOutput;
PaWasapiHostProcessorCallback hostProcessorInput;
PaWasapiThreadPriority threadPriority;
PaWasapiStreamCategory streamCategory;
PaWasapiStreamOption streamOption;
} PaWasapiStreamInfo;
""")

try:
_lib = _ffi.dlopen('portaudio')
_lib = _ffi.dlopen(_find_library('portaudio'))
except OSError:
if _platform.system() == 'Darwin':
_libname = 'libportaudio.dylib'
Expand Down Expand Up @@ -2935,25 +2629,17 @@ def _exit_handler():

def _ignore_stderr():
"""Try to forward PortAudio messages from stderr to /dev/null."""
ffi = _FFI()
ffi.cdef("""
/* from stdio.h */
FILE* fopen(const char* path, const char* mode);
int fclose(FILE* fp);
FILE* stderr; /* GNU C library */
FILE* __stderrp; /* macOS */
""")
try:
stdio = ffi.dlopen(None)
stdio = _ffi.dlopen(None)
devnull = stdio.fopen(_os.devnull.encode(), b'w')
except (OSError, AttributeError):
return
try:
stdio.stderr = devnull
except KeyError:
except _ffi.error:
try:
stdio.__stderrp = devnull
except KeyError:
except _ffi.error:
stdio.fclose(devnull)


Expand Down
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