VpfOrdZdZddlZddlZddlZddlZ ddl m Z ddl mZ dD]Ze eZen edejeZn#e$rejdkrd Zn0ejd krd ejdzd zZnddlZejeeejd eZejeZYnwxYwejejejejej ej!dZ"da#da$dRdZ% dSdZ& dSdZ'dTdZ(dTdZ)dZ*dZ+dUdZ,dVdZ- dWdZ. dWdZ/dZ0dZ1GddZ2Gd d!e2Z3Gd"d#e2Z4Gd$d%e3e4Z5Gd&d'e3Z6Gd(d)e4Z7Gd*d+e6e7Z8Gd,d-e9Z:Gd.d/Z;Gd0d1Z<Gd2d3Z=e>ed4s e=Z=Gd5d6e?Z@Gd7d8e?ZAGd9d:e?ZBGd;d<ZCGd=d>ZDGd?d@ZEGdAdBZFdCZGdDZHdEZIdFZJdGZKdHZLdIZMdJZNdXdLZOdYdMZPdNZQdOZRdPZSejTeSeQeUdQkreVe,dSdS)ZaPlay and Record Sound with Python. API overview: * Convenience functions to play and record NumPy arrays: `play()`, `rec()`, `playrec()` and the related functions `wait()`, `stop()`, `get_status()`, `get_stream()` * Functions to get information about the available hardware: `query_devices()`, `query_hostapis()`, `check_input_settings()`, `check_output_settings()` * Module-wide default settings: `default` * Platform-specific settings: `AsioSettings`, `CoreAudioSettings`, `WasapiSettings` * PortAudio streams, using NumPy arrays: `Stream`, `InputStream`, `OutputStream` * PortAudio streams, using Python buffer objects (NumPy not needed): `RawStream`, `RawInputStream`, `RawOutputStream` * Miscellaneous functions and classes: `sleep()`, `get_portaudio_version()`, `CallbackFlags`, `CallbackStop`, `CallbackAbort` Online documentation: https://python-sounddevice.readthedocs.io/ z0.4.7N) find_library)ffi) portaudiozbin\libportaudio-2.dllzlib/libportaudio.dylibzPortAudio library not foundDarwinzlibportaudio.dylibWindows libportaudioz.dllzportaudio-binaries)float32int32int24int16int8uint8Fc t||||d_fd}jt |jj||fddi|dS)a Play back a NumPy array containing audio data. This is a convenience function for interactive use and for small scripts. It cannot be used for multiple overlapping playbacks. This function does the following steps internally: * Call `stop()` to terminate any currently running invocation of `play()`, `rec()` and `playrec()`. * Create an `OutputStream` and a callback function for taking care of the actual playback. * Start the stream. * If ``blocking=True`` was given, wait until playback is done. If not, return immediately (to start waiting at a later point, `wait()` can be used). If you need more control (e.g. block-wise gapless playback, multiple overlapping playbacks, ...), you should explicitly create an `OutputStream` yourself. If NumPy is not available, you can use a `RawOutputStream`. Parameters ---------- data : array_like Audio data to be played back. The columns of a two-dimensional array are interpreted as channels, one-dimensional arrays are treated as mono data. The data types *float64*, *float32*, *int32*, *int16*, *int8* and *uint8* can be used. *float64* data is simply converted to *float32* before passing it to PortAudio, because it's not supported natively. mapping : array_like, optional List of channel numbers (starting with 1) where the columns of *data* shall be played back on. Must have the same length as number of channels in *data* (except if *data* is mono, in which case the signal is played back on all given output channels). Each channel number may only appear once in *mapping*. blocking : bool, optional If ``False`` (the default), return immediately (but playback continues in the background), if ``True``, wait until playback is finished. A non-blocking invocation can be stopped with `stop()` or turned into a blocking one with `wait()`. loop : bool, optional Play *data* in a loop. Other Parameters ---------------- samplerate, **kwargs All parameters of `OutputStream` -- except *channels*, *dtype*, *callback* and *finished_callback* -- can be used. Notes ----- If you don't specify the correct sampling rate (either with the *samplerate* argument or by assigning a value to `default.samplerate`), the audio data will be played back, but it might be too slow or too fast! See Also -------- rec, playrec )loopdevicect||ksJ|||dSN)lencallback_enter write_outdata callback_exit)outdataframestimestatusctxs K/var/www/html/nettyfy-visnx/env/lib/python3.11/site-packages/sounddevice.pycallbackzplay..callbacks\7||v%%%% 67+++ '""" *prime_output_buffers_using_stream_callbackFN)_CallbackContext check_datagetr start_stream OutputStreamoutput_channels output_dtype)data sampleratemappingblockingrkwargsrrs @rplayr-bsH  % % %Cgvzz(/C/CDDCJ C\:s/B%x@Erc t |||||\} _ fd} jt| j j||fi||S)a Record audio data into a NumPy array. This is a convenience function for interactive use and for small scripts. This function does the following steps internally: * Call `stop()` to terminate any currently running invocation of `play()`, `rec()` and `playrec()`. * Create an `InputStream` and a callback function for taking care of the actual recording. * Start the stream. * If ``blocking=True`` was given, wait until recording is done. If not, return immediately (to start waiting at a later point, `wait()` can be used). If you need more control (e.g. block-wise gapless recording, overlapping recordings, ...), you should explicitly create an `InputStream` yourself. If NumPy is not available, you can use a `RawInputStream`. Parameters ---------- frames : int, sometimes optional Number of frames to record. Not needed if *out* is given. channels : int, optional Number of channels to record. Not needed if *mapping* or *out* is given. The default value can be changed with `default.channels`. dtype : str or numpy.dtype, optional Data type of the recording. Not needed if *out* is given. The data types *float64*, *float32*, *int32*, *int16*, *int8* and *uint8* can be used. For ``dtype='float64'``, audio data is recorded in *float32* format and converted afterwards, because it's not natively supported by PortAudio. The default value can be changed with `default.dtype`. mapping : array_like, optional List of channel numbers (starting with 1) to record. If *mapping* is given, *channels* is silently ignored. blocking : bool, optional If ``False`` (the default), return immediately (but recording continues in the background), if ``True``, wait until recording is finished. A non-blocking invocation can be stopped with `stop()` or turned into a blocking one with `wait()`. Returns ------- numpy.ndarray or type(out) The recorded data. .. note:: By default (``blocking=False``), an array of data is returned which is still being written to while recording! The returned data is only valid once recording has stopped. Use `wait()` to make sure the recording is finished. Other Parameters ---------------- out : numpy.ndarray or subclass, optional If *out* is specified, the recorded data is written into the given array instead of creating a new array. In this case, the arguments *frames*, *channels* and *dtype* are silently ignored! If *mapping* is given, its length must match the number of channels in *out*. samplerate, **kwargs All parameters of `InputStream` -- except *callback* and *finished_callback* -- can be used. Notes ----- If you don't specify a sampling rate (either with the *samplerate* argument or by assigning a value to `default.samplerate`), the default sampling rate of the sound device will be used (see `query_devices()`). See Also -------- play, playrec ct||ksJ|||dSr)rr read_indatar)indatarrrrs rrzrec..callbacksZ6{{f$$$$ 66***  r)r! check_outrr$ InputStreaminput_channels input_dtype) rr)channelsdtypeoutr*r+r,rrs @rrecr9sl   CmmC5'JJOC C[*c.@_hDD.callbackjs6{{c'll4444f444444 66***  '""" rr F)r!r"r#r(r7r2 ValueErrorrr$Streamr4r&r5r') r(r)r6r7r8 input_mappingoutput_mappingr+r, output_frames input_framesrrs @rplayrecrBsN   CNN4H9M9MNNM } c=(E&355C}$$0111CJCVZ(#*=>os'78xAF    JrTcHtrt|SdS)adWait for `play()`/`rec()`/`playrec()` to be finished. Playback/recording can be stopped with a `KeyboardInterrupt`. Returns ------- CallbackFlags or None If at least one buffer over-/underrun happened during the last playback/recording, a `CallbackFlags` object is returned. See Also -------- get_status N)_last_callbackwait ignore_errorss rrErEzs* 2""=11122rctr@tj|tj|dSdS)zStop playback/recording. This only stops `play()`, `rec()` and `playrec()`, but has no influence on streams created with `Stream`, `InputStream`, `OutputStream`, `RawStream`, `RawInputStream`, `RawOutputStream`. N)rDstreamstopcloserFs rrJrJsL3 ""=111##M22222 33rcFtr tjStd)aGet info about over-/underflows in `play()`/`rec()`/`playrec()`. Returns ------- CallbackFlags A `CallbackFlags` object that holds information about the last invocation of `play()`, `rec()` or `playrec()`. See Also -------- wait )play()/rec()/playrec() was not called yet)rDr RuntimeErrorrr get_statusrP%H$$FGGGrcFtr tjStd)aHGet a reference to the current stream. This applies only to streams created by calls to `play()`, `rec()` or `playrec()`. Returns ------- Stream An `OutputStream`, `InputStream` or `Stream` associated with the last invocation of `play()`, `rec()` or `playrec()`, respectively. rM)rDrIrNrOrr get_streamrSrQrc |dvrtd||L|JtdtttDSt ||d}t|}|std||j dksJtj |j } | d }n#t$rtj}|j|tj|tjfvr| d }nK|j|tjkr,d dl}| |}nYnwxYw|||j|j|j|j|j|j|j|jd }|r;|d |zdzdkr)td||d|S)a4Return information about available devices. Information and capabilities of PortAudio devices. Devices may support input, output or both input and output. To find the default input/output device(s), use `default.device`. Parameters ---------- device : int or str, optional Numeric device ID or device name substring(s). If specified, information about only the given *device* is returned in a single dictionary. kind : {'input', 'output'}, optional If *device* is not specified and *kind* is ``'input'`` or ``'output'``, a single dictionary is returned with information about the default input or output device, respectively. Returns ------- dict or DeviceList A dictionary with information about the given *device* or -- if no arguments were specified -- a `DeviceList` containing one dictionary for each available device. The dictionaries have the following keys: ``'name'`` The name of the device. ``'index'`` The device index. ``'hostapi'`` The ID of the corresponding host API. Use `query_hostapis()` to get information about a host API. ``'max_input_channels'``, ``'max_output_channels'`` The maximum number of input/output channels supported by the device. See `default.channels`. ``'default_low_input_latency'``, ``'default_low_output_latency'`` Default latency values for interactive performance. This is used if `default.latency` (or the *latency* argument of `playrec()`, `Stream` etc.) is set to ``'low'``. ``'default_high_input_latency'``, ``'default_high_output_latency'`` Default latency values for robust non-interactive applications (e.g. playing sound files). This is used if `default.latency` (or the *latency* argument of `playrec()`, `Stream` etc.) is set to ``'high'``. ``'default_samplerate'`` The default sampling frequency of the device. This is used if `default.samplerate` is not set. Notes ----- The list of devices can also be displayed in a terminal: .. code-block:: sh python3 -m sounddevice Examples -------- The returned `DeviceList` can be indexed and iterated over like any sequence type (yielding the abovementioned dictionaries), but it also has a special string representation which is shown when used in an interactive Python session. Each available device is listed on one line together with the corresponding device ID, which can be assigned to `default.device` or used as *device* argument in `play()`, `Stream` etc. The first character of a line is ``>`` for the default input device, ``<`` for the default output device and ``*`` for the default input/output device. After the device ID and the device name, the corresponding host API name is displayed. In the end of each line, the maximum number of input and output channels is shown. On a GNU/Linux computer it might look somewhat like this: >>> import sounddevice as sd >>> sd.query_devices() 0 HDA Intel: ALC662 rev1 Analog (hw:0,0), ALSA (2 in, 2 out) 1 HDA Intel: ALC662 rev1 Digital (hw:0,1), ALSA (0 in, 2 out) 2 HDA Intel: HDMI 0 (hw:0,3), ALSA (0 in, 8 out) 3 sysdefault, ALSA (128 in, 128 out) 4 front, ALSA (0 in, 2 out) 5 surround40, ALSA (0 in, 2 out) 6 surround51, ALSA (0 in, 2 out) 7 surround71, ALSA (0 in, 2 out) 8 iec958, ALSA (0 in, 2 out) 9 spdif, ALSA (0 in, 2 out) 10 hdmi, ALSA (0 in, 8 out) * 11 default, ALSA (128 in, 128 out) 12 dmix, ALSA (0 in, 2 out) 13 /dev/dsp, OSS (16 in, 16 out) Note that ALSA provides access to some "real" and some "virtual" devices. The latter sometimes have a ridiculously high number of (virtual) inputs and outputs. On macOS, you might get something similar to this: >>> sd.query_devices() 0 Built-in Line Input, Core Audio (2 in, 0 out) > 1 Built-in Digital Input, Core Audio (2 in, 0 out) < 2 Built-in Output, Core Audio (0 in, 2 out) 3 Built-in Line Output, Core Audio (0 in, 2 out) 4 Built-in Digital Output, Core Audio (0 in, 2 out) inputoutputNzInvalid kind: Nc34K|]}t|VdSr) query_devices.0is r z query_devices..4sFLL(**LLLLLLrTraise_on_errorzError querying device zutf-8mbcsr) nameindexhostapimax_input_channelsmax_output_channelsdefault_low_input_latencydefault_low_output_latencydefault_high_input_latencydefault_high_output_latencydefault_sampleratemax_ _channelszNot an {} device: {!r}rb)r< DeviceListrange_check_libPa_GetDeviceCount_get_device_idPa_GetDeviceInfoPortAudioError structVersion_ffistringrbdecodeUnicodeDecodeErrorPa_HostApiTypeIdToHostApiIndexhostApi paDirectSoundpaMMEpaASIOlocalegetpreferredencodingmaxInputChannelsmaxOutputChannelsdefaultLowInputLatencydefaultLowOutputLatencydefaultHighInputLatencydefaultHighOutputLatencydefaultSampleRateformat)rkindinfo name_bytesrbapi_idxr device_dicts rrYrYsOX ,,,2$22333 ~$,LL#(0F0F0H0H)I)I#J#JLLLLL L FD > > >F   ( (D @>f>>???   " " " "TY''J   ))    5 .sFHH$A&&HHHHHHrzError querying host API rncFg|]}t|SrO)rr"Pa_HostApiDeviceIndexToDeviceIndex)r[r\rcs r z"query_hostapis..s9666;;E1EE666r)rbdevicesdefault_input_devicedefault_output_device)tuplerprqrrPa_GetHostApiCountPa_GetHostApiInforvrwrxryrbrz deviceCountdefaultInputDevicedefaultOutputDevice)rcrs` rrr^s J }HH#F4+B+B+D+D$E$EFFHHHHH H  ! !% ( (D A???@@@   " " " " DI&&--//6666"4#344666 $ 7!%!9   rc td|||d||\}}}}tt|tj|dS)a%Check if given input device settings are supported. All parameters are optional, `default` settings are used for any unspecified parameters. If the settings are supported, the function does nothing; if not, an exception is raised. Parameters ---------- device : int or str, optional Device ID or device name substring(s), see `default.device`. channels : int, optional Number of input channels, see `default.channels`. dtype : str or numpy.dtype, optional Data type for input samples, see `default.dtype`. extra_settings : settings object, optional This can be used for host-API-specific input settings. See `default.extra_settings`. samplerate : float, optional Sampling frequency, see `default.samplerate`. rVNrr6r7latencyextra_settingsr)_get_stream_parametersrqrrPa_IsFormatSupportedrxNULLrr6r7rr) parameters samplesizes rcheck_input_settingsrs\.1G%*1>1>1>-Jz: 4 $ $ZJ G GHHHHHrc td|||d||\}}}}tttj||dS)zCheck if given output device settings are supported. Same as `check_input_settings()`, just for output device settings. rWNrrrs rcheck_output_settingsrs\1G(%%*1>1>1>-Jz: 4 $ $TY J G GHHHHHrc:t|dS)zPut the caller to sleep for at least *msec* milliseconds. The function may sleep longer than requested so don't rely on this for accurate musical timing. N)rrPa_Sleep)msecs rsleeprs MM$rcttjtfS)zGet version information for the PortAudio library. Returns the release number and a textual description of the current PortAudio build, e.g. :: (1899, 'PortAudio V19-devel (built Feb 15 2014 23:28:00)') )rr Pa_GetVersionrxryPa_GetVersionTextrzrOrrget_portaudio_versionrs=     T-C-C-E-E!F!F!M!M!O!O OOrcfeZdZdZ ddZejZedZ edZ edZ edZ edZ ed Zed Zed Zed Zed ZedZedZdZdZdZddZddZddZdS) _StreamBasez5Direct or indirect base class for all stream classes.Nc  |dvsJ|dvsJ|dkrddl}|sJ| tj}| tj} | tj} | tj} | tj}tj}| r|tj z}| r|tj z}| r|tj z}|r|tj z}|dkrt|\}}t|\}}t|\}}t|\}}t|\}}td||||||\}}}}td||||||\} }}!}"||f_|j| jf_|j| jf_||!f_||"krt+d |}net|||||||\}#__}|#j_|#j_|dkr|#}t,j} n|dkrt,j}|#} t-jd tj }$ t,j}%n|dkr|d kr|$ fd }%n|dkr|dkr|$ fd}%n|dkr|d kr|$ fd}%nf|dkr|dkr|$ fd}%nK|dkr|d kr|$ fd}%n0|dkr|dkr|$ fd}%nt-jd }%|%_| t,j}t-jd_t=tj|| ||||%|dj j!jd_|_"t#j}&|&stId|&j%_&| s |&j'_(n"|s |&j)_(n|&j'|&j)f_( rutU t,j+r _,n fd}'t-jd|'_,t=t-jj,dSdS)aBase class for PortAudio streams. This class should only be used by library authors who want to create their own custom stream classes. Most users should use the derived classes `Stream`, `InputStream`, `OutputStream`, `RawStream`, `RawInputStream` and `RawOutputStream` instead. This class has the same properties and methods as `Stream`, except for `read_available`/:meth:`~Stream.read` and `write_available`/:meth:`~Stream.write`. It can be created with the same parameters as `Stream`, except that there are three additional parameters and the *callback* parameter also accepts a C function pointer. Parameters ---------- kind : {'input', 'output', 'duplex'} The desired type of stream: for recording, playback or both. callback : Python callable or CData function pointer, optional If *wrap_callback* is ``None`` this can be a function pointer provided by CFFI. Otherwise, it has to be a Python callable. wrap_callback : {'array', 'buffer'}, optional If *callback* is a Python callable, this selects whether the audio data is provided as NumPy array (like in `Stream`) or as Python buffer object (like in `RawStream`). userdata : CData void pointer This is passed to the underlying C callback function on each call and can only be accessed from a *callback* provided as ``CData`` function pointer. Examples -------- A usage example of this class can be seen at https://github.com/spatialaudio/python-rtmixer. )rVrWduplex)arraybufferNrrNrrVrWz5Input and output device must have the same sampleratePaStreamCallback)errorrcbt||jj}t||||Sr_bufferrm _samplesize_wrap_callback iptroptrrrr_r(rselfs r callback_ptrz*_StreamBase.__init__..callback_ptrJ1tVT^T=MNN%hfdFKKKrctt||jjjj}t ||||Sr_arrayrrmr_dtyperrs rrz*_StreamBase.__init__..callback_ptrQID&$.$:JKKNDK11&hfdFKKKrcbt||jj}t||||Srrrs rrz*_StreamBase.__init__..callback_ptrZrrctt||jjjj}t ||||Srrrs rrz*_StreamBase.__init__..callback_ptrarrc j\}} j\}} t||||} t|||| } t | | |||Sr)rmrrr)rrrrrr ichannels ochannelsisizeosizeidataodatarrs rrz*_StreamBase.__init__..callback_ptrjsc'+~$ 9#/ ufi??fi??%eUFD&BBBrcj\}}j\}} j\} } tt |||| ||} tt |||| || } t | | |||Sr)rmrrrrr)rrrrrrrridtypeodtyperrrrrrs rrz*_StreamBase.__init__..callback_ptrus'+~$ 9!%#/ uwtVYFF(&22wtVYFF(&22%eUFD&BBBrzPaStreamCallback*z PaStream**zError opening zCould not obtain stream infocSrrO)rfinished_callbacks rfinished_callback_wrapperz7_StreamBase.__init__..finished_callback_wrappers,,...rPaStreamFinishedCallback).numpydefault blocksizeclip_off dither_offnever_drop_inputr rrpaNoFlag paClipOff paDitherOffpaNeverDropInput'paPrimeOutputBuffersUsingStreamCallback_splitrrr_device channelCountrmrr<rxrrpaAbortcast _callbacknew_ptrrq Pa_OpenStream __class____name__ _blocksizePa_GetStreamInforv sampleRate _samplerate inputLatency_latency outputLatency isinstanceCData_finished_callbackPa_SetStreamFinishedCallback)(rrr)rrr6r7rrrrrrrr userdata wrap_callbackr stream_flagsideviceodevicerrrrilatencyolatencyiextraoextra iparametersr isamplerate oparametersr osamplerater ffi_callbackrrrs(` `` r__init__z_StreamBase.__init__sZ44444 99999 G # # LLLLLL  )I  'H   +J  #&7  5 =B 7}  + DN *L  - D, ,L  2 D1 1L 5 I DH HL 8  %f~~ GW#)(#3#3 Iy#E]]NFF!' Hh#N33NFF6L)VXv77 3K 7M'9fh77 3K !&.DK&-{/AADL(5{7OODN$e|D k)) KMMM) 'tVXug'5zCC BJ T%5z&,DL'4DNw( "i !!"i ( }%7t|LLL  9LL W__(!:!:  L L L L L\ L LW__'!9!9  L L L L L\ L L X  -8";";  L L L L L\ L LX  -7":":  L L L L L\ L L X  -8";";  B B B B B\ B BX  -7":":  B B B B B\ B B 9%8(CCL&  yHH\** t!!$)[+",i".::: 799 ; ; ; IaL #$$TY// A !?@@ @? B -DMM B .DMM -t/AADM  O+TZ88 K*;''/////+/-.0I+K+K' 444TY595LNN O O O O O O Orc|jS)aThe sampling frequency in Hertz (= frames per second). In cases where the hardware sampling frequency is inaccurate and PortAudio is aware of it, the value of this field may be different from the *samplerate* parameter passed to `Stream()`. If information about the actual hardware sampling frequency is not available, this field will have the same value as the *samplerate* parameter passed to `Stream()`. )rrs rr)z_StreamBase.samplerates rc|jS)zNumber of frames per block. The special value 0 means that the blocksize can change between blocks. See the *blocksize* argument of `Stream`. )rrs rrz_StreamBase.blocksizes rc|jS)zIDs of the input/output device.)rrs rrz_StreamBase.devices |rc|jS)z$The number of input/output channels.)rmrs rr6z_StreamBase.channelss ~rc|jS)znData type of the audio samples. See Also -------- default.dtype, samplesize )rrs rr7z_StreamBase.dtypes {rc|jS)z`The size in bytes of a single sample. See Also -------- dtype )rrs rrz_StreamBase.samplesizes rc|jS)aThe input/output latency of the stream in seconds. This value provides the most accurate estimate of input/output latency available to the implementation. It may differ significantly from the *latency* value(s) passed to `Stream()`. )rrs rrz_StreamBase.latencys }rct|jrdStt|jdkS)a``True`` when the stream is active, ``False`` otherwise. A stream is active after a successful call to `start()`, until it becomes inactive either as a result of a call to `stop()` or `abort()`, or as a result of an exception raised in the stream callback. In the latter case, the stream is considered inactive after the last buffer has finished playing. See Also -------- stopped Frn)closedrqrrPa_IsStreamActiverrs ractivez_StreamBase.actives6 ; 5d,,TY7788A==rct|jrdStt|jdkS)a``True`` when the stream is stopped, ``False`` otherwise. A stream is considered to be stopped prior to a successful call to `start()` and after a successful call to `stop()` or `abort()`. If a stream callback is cancelled (by raising an exception) the stream is *not* considered to be stopped. See Also -------- active Trn)rrqrrPa_IsStreamStoppedrrs rstoppedz_StreamBase.stoppeds6 ; 4d--di8899Q>>rc,|jtjkS)z8``True`` after a call to `close()`, ``False`` otherwise.)rrxrrs rrz_StreamBase.closedsyDI%%rcft|j}|std|S)aThe current stream time in seconds. This is according to the same clock used to generate the timestamps passed with the *time* argument to the stream callback (see the *callback* argument of `Stream`). The time values are monotonically increasing and have unspecified origin. This provides valid time values for the entire life of the stream, from when the stream is opened until it is closed. Starting and stopping the stream does not affect the passage of time as provided here. This time may be used for synchronizing other events to the audio stream, for example synchronizing audio to MIDI. zError getting stream time)rrPa_GetStreamTimerrv)rrs rrz_StreamBase.times5&$$TY// > !<== = rc@t|jS)aCPU usage information for the stream. The "CPU Load" is a fraction of total CPU time consumed by a callback stream's audio processing routines including, but not limited to the client supplied stream callback. This function does not work with blocking read/write streams. This may be used in the stream callback function or in the application. It provides a floating point value, typically between 0.0 and 1.0, where 1.0 indicates that the stream callback is consuming the maximum number of CPU cycles possible to maintain real-time operation. A value of 0.5 would imply that PortAudio and the stream callback was consuming roughly 50% of the available CPU time. The value may exceed 1.0. A value of 0.0 will always be returned for a blocking read/write stream, or if an error occurs. )rrPa_GetStreamCpuLoadrrs rcpu_loadz_StreamBase.cpu_load6s*'' 222rc.||S)z9Start the stream in the beginning of a "with" statement.)startrs r __enter__z_StreamBase.__enter__Ms  rcV||dS)z:Stop and close the stream when exiting a "with" statement.N)rJrK)rargss r__exit__z_StreamBase.__exit__Rs   rct|j}|tjkrt |ddSdS)z[Commence audio processing. See Also -------- stop, abort zError starting streamN)rrPa_StartStreamrpaStreamIsNotStoppedrq)rerrs rr$z_StreamBase.startWsF!!$),, $+ + + 3/ 0 0 0 0 0 , +rTclt|j}|st|ddSdS)zTerminate audio processing. This waits until all pending audio buffers have been played before it returns. See Also -------- start, abort zError stopping streamN)rr Pa_StopStreamrrqrrGr,s rrJz_StreamBase.stopcsB  ++ 1 3/ 0 0 0 0 0 1 1rclt|j}|st|ddSdS)zTerminate audio processing immediately. This does not wait for pending buffers to complete. See Also -------- start, stop zError aborting streamN)rrPa_AbortStreamrrqr/s rabortz_StreamBase.abortrsB!!$),, 1 3/ 0 0 0 0 0 1 1rct|j}tj|_|st |ddSdS)zClose the stream. If the audio stream is active any pending buffers are discarded as if `abort()` had been called. zError closing streamN)rrPa_CloseStreamrrxrrqr/s rrKz_StreamBase.closesK!!$),,I  0 3. / / / / / 0 0r)NNNNNNNNNNNNNNNT)r __module__ __qualname____doc__r rxrrpropertyr)rrr6r7rrrrrrr"r%r(r$rJr2rKrOrrrrs??EIIMAE37<@.2 TOTOTOTOn 9D    X  XXXX  X   X >>X>$??X?"&&X&X.33X3,  1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0rrc@eZdZdZ ddZedZdZdS)RawInputStreamz=Raw stream for recording only. See __init__() and RawStream.Ncbtj|fdddttdS)a}PortAudio input stream (using buffer objects). This is the same as `InputStream`, except that the *callback* function and :meth:`~RawStream.read` work on plain Python buffer objects instead of on NumPy arrays. NumPy is not necessary for using this. Parameters ---------- dtype : str See `RawStream`. callback : callable User-supplied function to consume audio data in response to requests from an active stream. The callback must have this signature:: callback(indata: buffer, frames: int, time: CData, status: CallbackFlags) -> None The arguments are the same as in the *callback* parameter of `RawStream`, except that *outdata* is missing. See Also -------- RawStream, Stream rVrrrNrr  _remove_selflocalsrr)rrr6r7rrrrrrrr s rr zRawInputStream.__init__sH@ T 7x 7 7+FHH55 7 7 7 7 7rcZtt|jS)zThe number of frames that can be read without waiting. Returns a value representing the maximum number of frames that can be read from the stream without blocking or busy waiting. )rqrrPa_GetStreamReadAvailablerrs rread_availablezRawInputStream.read_availables"d44TY??@@@rcJt|j\}}t|j\}}tjd||z|z}t |j||}|t jkrd}nt|d}tj ||fS)aRead samples from the stream into a buffer. This is the same as `Stream.read()`, except that it returns a plain Python buffer object instead of a NumPy array. NumPy is not necessary for using this. Parameters ---------- frames : int The number of frames to be read. See `Stream.read()`. Returns ------- data : buffer A buffer of interleaved samples. The buffer contains samples in the format specified by the *dtype* parameter used to open the stream, and the number of channels specified by *channels*. See also `samplesize`. overflowed : bool See `Stream.read()`. z signed char[]TF) rrmrrxrrr Pa_ReadStreamrpaInputOverflowedrqr)rrr6rrr(r, overfloweds rreadzRawInputStream.reads0T^,, !t/00 AxJ)>)GHH  D&99 $( ( (JJ 3KKKJ{4  *,,r NNNNNNNNNNNNN)rr6r7r8r r9rDrIrOrrr;r;skGG26AEGKBF<@ !7!7!7!7FAAXA!-!-!-!-!-rr;c@eZdZdZ ddZedZdZdS)RawOutputStreamz None The arguments are the same as in the *callback* parameter of `RawStream`, except that *indata* is missing. See Also -------- RawStream, Stream rWrr=Nr>rAs rr zRawOutputStream.__init__sH@ T 7 7 7+FHH55 7 7 7 7 7rcZtt|jS)zThe number of frames that can be written without waiting. Returns a value representing the maximum number of frames that can be written to the stream without blocking or busy waiting. )rqrrPa_GetStreamWriteAvailablerrs rwrite_availablezRawOutputStream.write_availables"d55di@@AAArc tj|}n#t$rYnt$rYnwxYwt |j\}}t |j\}}tt||\}}|rtdt||\}}|rtdt |j ||}|tj krd} nt|d} | S)a}Write samples to the stream. This is the same as `Stream.write()`, except that it expects a plain Python buffer object instead of a NumPy array. NumPy is not necessary for using this. Parameters ---------- data : buffer or bytes or iterable of int A buffer of interleaved samples. The buffer contains samples in the format specified by the *dtype* argument used to open the stream, and the number of channels specified by *channels*. The length of the buffer is not constrained to a specific range, however high performance applications will want to match this parameter to the *blocksize* parameter used when opening the stream. See also `samplesize`. Returns ------- underflowed : bool See `Stream.write()`. z%len(data) not divisible by samplesizez+Number of samples not divisible by channelsTF)rx from_bufferAttributeError TypeErrorrrrmdivmodrr<rrPa_WriteStreamrpaOutputUnderflowedrq) rr(rrr6samples remainderrr, underfloweds rwritezRawOutputStream.writes0 #D))DD    D    D t/00 :T^,, 8#CIIz::  FDEE E"7H55  LJKK K!!$)T6:: $* * *KK 3KKKKs / //rJ)rr6r7r8r r9rPr[rOrrrLrLskFF26AEGKBF<@ !7!7!7!7FBBXB,,,,,rrLc$eZdZdZ ddZdS) RawStreamz7Raw stream for playback and recording. See __init__().Ncbtj|fdddttdS)aPortAudio input/output stream (using buffer objects). This is the same as `Stream`, except that the *callback* function and `read()`/`write()` work on plain Python buffer objects instead of on NumPy arrays. NumPy is not necessary for using this. To open a "raw" input-only or output-only stream use `RawInputStream` or `RawOutputStream`, respectively. If you want to handle audio data as NumPy arrays instead of buffer objects, use `Stream`, `InputStream` or `OutputStream`. Parameters ---------- dtype : str or pair of str The sample format of the buffers provided to the stream callback, `read()` or `write()`. In addition to the formats supported by `Stream` (``'float32'``, ``'int32'``, ``'int16'``, ``'int8'``, ``'uint8'``), this also supports ``'int24'``, i.e. packed 24 bit format. The default value can be changed with `default.dtype`. See also `samplesize`. callback : callable User-supplied function to consume, process or generate audio data in response to requests from an active stream. The callback must have this signature:: callback(indata: buffer, outdata: buffer, frames: int, time: CData, status: CallbackFlags) -> None The arguments are the same as in the *callback* parameter of `Stream`, except that *indata* and *outdata* are plain Python buffer objects instead of NumPy arrays. See Also -------- RawInputStream, RawOutputStream, Stream rrr=Nr>rAs rr zRawStream.__init__CsHZ T 7 7 7+FHH55 7 7 7 7 7rrJrr6r7r8r rOrrr]r]@s=AA26AEGKBF<@ .7.7.7.7.7.7rr]c*eZdZdZ ddZdZdS)r3z2Stream for input only. See __init__() and Stream.Ncbtj|fdddttdS)a?PortAudio input stream (using NumPy). This has the same methods and attributes as `Stream`, except :meth:`~Stream.write` and `write_available`. Furthermore, the stream callback is expected to have a different signature (see below). Parameters ---------- callback : callable User-supplied function to consume audio in response to requests from an active stream. The callback must have this signature:: callback(indata: numpy.ndarray, frames: int, time: CData, status: CallbackFlags) -> None The arguments are the same as in the *callback* parameter of `Stream`, except that *outdata* is missing. See Also -------- Stream, RawInputStream rVrr=Nr>rAs rr zInputStream.__init__wsG< T 7w 7 7+FHH55 7 7 7 7 7rct|j\}}t|j\}}t||\}}t |||}||fS)aRead samples from the stream into a NumPy array. The function doesn't return until all requested *frames* have been read -- this may involve waiting for the operating system to supply the data (except if no more than `read_available` frames were requested). This is the same as `RawStream.read()`, except that it returns a NumPy array instead of a plain Python buffer object. Parameters ---------- frames : int The number of frames to be read. This parameter is not constrained to a specific range, however high performance applications will want to match this parameter to the *blocksize* parameter used when opening the stream. Returns ------- data : numpy.ndarray A two-dimensional `numpy.ndarray` with one column per channel (i.e. with a shape of ``(frames, channels)``) and with a data type specified by `dtype`. overflowed : bool ``True`` if input data was discarded by PortAudio after the previous call and before this call. )rrrmr;rIr)rrr7rr6r(rHs rrIzInputStream.reads`<$+&&qT^,, !)..tV<<jdHe,,ZrrJ)rr6r7r8r rIrOrrr3r3tsM<<26AEGKBF<@ 7777B" " " " " rr3c*eZdZdZ ddZdZdS)r%z3Stream for output only. See __init__() and Stream.Ncbtj|fdddttdS)aEPortAudio output stream (using NumPy). This has the same methods and attributes as `Stream`, except :meth:`~Stream.read` and `read_available`. Furthermore, the stream callback is expected to have a different signature (see below). Parameters ---------- callback : callable User-supplied function to generate audio data in response to requests from an active stream. The callback must have this signature:: callback(outdata: numpy.ndarray, frames: int, time: CData, status: CallbackFlags) -> None The arguments are the same as in the *callback* parameter of `Stream`, except that *indata* is missing. See Also -------- Stream, RawOutputStream rWrr=Nr>rAs rr zOutputStream.__init__sG< T 7 7 7+FHH55 7 7 7 7 7rc$ddl}||}t|j\}}t|j\}}|jdkr|dd}n|jdkrtd|jd|krtd|j |kr-td |j j ||j jstd t||S) aWrite samples to the stream. This function doesn't return until the entire buffer has been consumed -- this may involve waiting for the operating system to consume the data (except if *data* contains no more than `write_available` frames). This is the same as `RawStream.write()`, except that it expects a NumPy array instead of a plain Python buffer object. Parameters ---------- data : array_like A two-dimensional array-like object with one column per channel (i.e. with a shape of ``(frames, channels)``) and with a data type specified by `dtype`. A one-dimensional array can be used for mono data. The array layout must be C-contiguous (see :func:`numpy.ascontiguousarray`). The length of the buffer is not constrained to a specific range, however high performance applications will want to match this parameter to the *blocksize* parameter used when opening the stream. Returns ------- underflowed : bool ``True`` if additional output data was inserted after the previous call and before this call. rNr`rnz$data must be one- or two-dimensionalznumber of channels must matchzdtype mismatch: {!r} vs {!r}zdata must be C-contiguous)rasarrayrrrmndimreshaper<shaper7rTrrbflags c_contiguousrLr[)rr(nprr7r6s rr[zOutputStream.writes@ zz$$+&&5T^,, 8 9q==<<A&&DD Y]]CDD D :a=H $ $<== = :  :AA (()) )z& 9788 8$$T4000rrJ)rr6r7r8r r[rOrrr%r%sM==26AEGKBF<@ 7777B/1/1/1/1/1rr%c$eZdZdZ ddZdS)r=z-Stream for input and output. See __init__().Ncbtj|fdddttdS)a2PortAudio stream for simultaneous input and output (using NumPy). To open an input-only or output-only stream use `InputStream` or `OutputStream`, respectively. If you want to handle audio data as plain buffer objects instead of NumPy arrays, use `RawStream`, `RawInputStream` or `RawOutputStream`. A single stream can provide multiple channels of real-time streaming audio input and output to a client application. A stream provides access to audio hardware represented by one or more devices. Depending on the underlying host API, it may be possible to open multiple streams using the same device, however this behavior is implementation defined. Portable applications should assume that a device may be simultaneously used by at most one stream. The arguments *device*, *channels*, *dtype* and *latency* can be either single values (which will be used for both input and output parameters) or pairs of values (where the first one is the value for the input and the second one for the output). All arguments are optional, the values for unspecified parameters are taken from the `default` object. If one of the values of a parameter pair is ``None``, the corresponding value from `default` will be used instead. The created stream is inactive (see `active`, `stopped`). It can be started with `start()`. Every stream object is also a :ref:`context manager `, i.e. it can be used in a :ref:`with statement ` to automatically call `start()` in the beginning of the statement and `stop()` and `close()` on exit. Parameters ---------- samplerate : float, optional The desired sampling frequency (for both input and output). The default value can be changed with `default.samplerate`. blocksize : int, optional The number of frames passed to the stream callback function, or the preferred block granularity for a blocking read/write stream. The special value ``blocksize=0`` (which is the default) may be used to request that the stream callback will receive an optimal (and possibly varying) number of frames based on host requirements and the requested latency settings. The default value can be changed with `default.blocksize`. .. note:: With some host APIs, the use of non-zero *blocksize* for a callback stream may introduce an additional layer of buffering which could introduce additional latency. PortAudio guarantees that the additional latency will be kept to the theoretical minimum however, it is strongly recommended that a non-zero *blocksize* value only be used when your algorithm requires a fixed number of frames per stream callback. device : int or str or pair thereof, optional Device index(es) or query string(s) specifying the device(s) to be used. The default value(s) can be changed with `default.device`. If a string is given, the device is selected which contains all space-separated parts in the right order. Each device string contains the name of the corresponding host API in the end. The string comparison is case-insensitive. channels : int or pair of int, optional The number of channels of sound to be delivered to the stream callback or accessed by `read()` or `write()`. It can range from 1 to the value of ``'max_input_channels'`` or ``'max_output_channels'`` in the dict returned by `query_devices()`. By default, the maximum possible number of channels for the selected device is used (which may not be what you want; see `query_devices()`). The default value(s) can be changed with `default.channels`. dtype : str or numpy.dtype or pair thereof, optional The sample format of the `numpy.ndarray` provided to the stream callback, `read()` or `write()`. It may be any of *float32*, *int32*, *int16*, *int8*, *uint8*. See `numpy.dtype`. The *float64* data type is not supported, this is only supported for convenience in `play()`/`rec()`/`playrec()`. The packed 24 bit format ``'int24'`` is only supported in the "raw" stream classes, see `RawStream`. The default value(s) can be changed with `default.dtype`. If NumPy is available, the corresponding `numpy.dtype` objects can be used as well. The floating point representations ``'float32'`` and ``'float64'`` use ``+1.0`` and ``-1.0`` as the maximum and minimum values, respectively. ``'uint8'`` is an unsigned 8 bit format where ``128`` is considered "ground". latency : float or {'low', 'high'} or pair thereof, optional The desired latency in seconds. The special values ``'low'`` and ``'high'`` (latter being the default) select the device's default low and high latency, respectively (see `query_devices()`). ``'high'`` is typically more robust (i.e. buffer under-/overflows are less likely), but the latency may be too large for interactive applications. .. note:: Specifying the desired latency as ``'high'`` does not *guarantee* a stable audio stream. For reference, by default Audacity_ specifies a desired latency of ``0.1`` seconds and typically achieves robust performance. .. _Audacity: https://www.audacityteam.org/ The default value(s) can be changed with `default.latency`. Actual latency values for an open stream can be retrieved using the `latency` attribute. extra_settings : settings object or pair thereof, optional This can be used for host-API-specific input/output settings. See `default.extra_settings`. callback : callable, optional User-supplied function to consume, process or generate audio data in response to requests from an `active` stream. When a stream is running, PortAudio calls the stream callback periodically. The callback function is responsible for processing and filling input and output buffers, respectively. If no *callback* is given, the stream will be opened in "blocking read/write" mode. In blocking mode, the client can receive sample data using `read()` and write sample data using `write()`, the number of frames that may be read or written without blocking is returned by `read_available` and `write_available`, respectively. The callback must have this signature:: callback(indata: ndarray, outdata: ndarray, frames: int, time: CData, status: CallbackFlags) -> None The first and second argument are the input and output buffer, respectively, as two-dimensional `numpy.ndarray` with one column per channel (i.e. with a shape of ``(frames, channels)``) and with a data type specified by `dtype`. The output buffer contains uninitialized data and the *callback* is supposed to fill it with proper audio data. If no data is available, the buffer should be filled with zeros (e.g. by using ``outdata.fill(0)``). .. note:: In Python, assigning to an identifier merely re-binds the identifier to another object, so this *will not work* as expected:: outdata = my_data # Don't do this! To actually assign data to the buffer itself, you can use indexing, e.g.:: outdata[:] = my_data ... which fills the whole buffer, or:: outdata[:, 1] = my_channel_data ... which only fills one channel. The third argument holds the number of frames to be processed by the stream callback. This is the same as the length of the input and output buffers. The forth argument provides a CFFI structure with timestamps indicating the ADC capture time of the first sample in the input buffer (``time.inputBufferAdcTime``), the DAC output time of the first sample in the output buffer (``time.outputBufferDacTime``) and the time the callback was invoked (``time.currentTime``). These time values are expressed in seconds and are synchronised with the time base used by `time` for the associated stream. The fifth argument is a `CallbackFlags` instance indicating whether input and/or output buffers have been inserted or will be dropped to overcome underflow or overflow conditions. If an exception is raised in the *callback*, it will not be called again. If `CallbackAbort` is raised, the stream will finish as soon as possible. If `CallbackStop` is raised, the stream will continue until all buffers generated by the callback have been played. This may be useful in applications such as soundfile players where a specific duration of output is required. If another exception is raised, its traceback is printed to `sys.stderr`. Exceptions are *not* propagated to the main thread, i.e. the main Python program keeps running as if nothing had happened. .. note:: The *callback* must always fill the entire output buffer, no matter if or which exceptions are raised. If no exception is raised in the *callback*, it automatically continues to be called until `stop()`, `abort()` or `close()` are used to stop the stream. The PortAudio stream callback runs at very high or real-time priority. It is required to consistently meet its time deadlines. Do not allocate memory, access the file system, call library functions or call other functions from the stream callback that may block or take an unpredictable amount of time to complete. With the exception of `cpu_load` it is not permissible to call PortAudio API functions from within the stream callback. In order for a stream to maintain glitch-free operation the callback must consume and return audio data faster than it is recorded and/or played. PortAudio anticipates that each callback invocation may execute for a duration approaching the duration of *frames* audio frames at the stream's sampling frequency. It is reasonable to expect to be able to utilise 70% or more of the available CPU time in the PortAudio callback. However, due to buffer size adaption and other factors, not all host APIs are able to guarantee audio stability under heavy CPU load with arbitrary fixed callback buffer sizes. When high callback CPU utilisation is required the most robust behavior can be achieved by using ``blocksize=0``. finished_callback : callable, optional User-supplied function which will be called when the stream becomes inactive (i.e. once a call to `stop()` will not block). A stream will become inactive after the stream callback raises an exception or when `stop()` or `abort()` is called. For a stream providing audio output, if the stream callback raises `CallbackStop`, or `stop()` is called, the stream finished callback will not be called until all generated sample data has been played. The callback must have this signature:: finished_callback() -> None clip_off : bool, optional See `default.clip_off`. dither_off : bool, optional See `default.dither_off`. never_drop_input : bool, optional See `default.never_drop_input`. prime_output_buffers_using_stream_callback : bool, optional See `default.prime_output_buffers_using_stream_callback`. rrr=Nr>rAs rr zStream.__init__sHt T 7 7 7+FHH55 7 7 7 7 7rrJr_rOrrr=r=sC7726AEGKBF<@ {7{7{7{7{7{7rr=ceZdZdZdZdZdS)roaHA list with information about all available audio devices. This class is not meant to be instantiated by the user. Instead, it is returned by `query_devices()`. It contains a dictionary for each available device, holding the keys described in `query_devices()`. This class has a special string representation that is shown as return value of `query_devices()` if used in an interactive Python session. It will also be shown when using the :func:`print` function. Furthermore, it can be obtained with :func:`repr` and :class:`str() `. rOcttjddttjddtt t dz dtDdfdt|D}|S)NrVrWrncg|] }|d S)rbrO)r[rds rrz'DeviceList.__repr__..*sIIIWIIIr c 3K|]U\}}dd|kd|kzz||d|d|d|dVVdS) z6{mark} {idx:{dig}} {name}, {ha} ({ins} in, {outs} out)) ><*r`rbrdrerf)markidxdigrbhainsoutsNr)r[rzrdigits hostapi_namesidevodevs rr]z&DeviceList.__repr__..+s . .T E K K)3$;!sd{:K*KL&\ i1-./0 L 2 2 . . . . . .r) rtrrrstrrrrsrjoin enumerate)rtextrrrrs @@@@r__repr__zDeviceList.__repr__&sgnW5w??gnX6AAS//11A56677II8H8HIII yy . . . . . . .'t__ . . . . . rN)rr6r7r8 __slots__rrOrrroros4  Irroc0eZdZdZdZddZdZdZdZdZ e d Z e j d Z e d Z e j d Z e d Zej dZe dZej dZe dZdZdZdS) CallbackFlagsaMFlag bits for the *status* argument to a stream *callback*. If you experience under-/overflows, you can try to increase the ``latency`` and/or ``blocksize`` settings. You should also avoid anything that could block the callback function for a long time, e.g. extensive computations, waiting for another thread, reading/writing files, network connections, etc. See Also -------- Stream Examples -------- This can be used to collect the errors of multiple *status* objects: >>> import sounddevice as sd >>> errors = sd.CallbackFlags() >>> errors |= status1 >>> errors |= status2 >>> errors |= status3 >>> # and so on ... >>> errors.input_overflow True The values may also be set and cleared by the user: >>> import sounddevice as sd >>> cf = sd.CallbackFlags() >>> cf >>> cf.input_underflow = True >>> cf >>> cf.input_underflow = False >>> cf _flagsrc||_dSrrrrks rr zCallbackFlags.__init__cs  rc4t|}|sd}d|dS)Nz no flags setz.msqNND $ 4 4N9@t9L9LNc3//NNNNNNr)rdirrs`r__str__zCallbackFlags.__str__lsNyyNNNNCIINNNNN Nrc*t|jSrboolrrs r__bool__zCallbackFlags.__bool__psDK   rcht|tstS|xj|jzc_|Sr)rrNotImplementedr)rothers r__ior__zCallbackFlags.__ior__ss1%// "! ! u|#  rc@|tjS)aInput underflow. In a stream opened with ``blocksize=0``, indicates that input data is all silence (zeros) because no real data is available. In a stream opened with a non-zero *blocksize*, it indicates that one or more zero samples have been inserted into the input buffer to compensate for an input underflow. This can only happen in full-duplex streams (including `playrec()`). )_hasflagrrpaInputUnderflowrs rinput_underflowzCallbackFlags.input_underflowys}}T2333rcF|tj|dSr) _updateflagrrrrvalues rrzCallbackFlags.input_underflow! .66666rc@|tjS)a Input overflow. In a stream opened with ``blocksize=0``, indicates that data prior to the first sample of the input buffer was discarded due to an overflow, possibly because the stream callback is using too much CPU time. In a stream opened with a non-zero *blocksize*, it indicates that data prior to one or more samples in the input buffer was discarded. This can happen in full-duplex and input-only streams (including `playrec()` and `rec()`). )rrrpaInputOverflowrs rinput_overflowzCallbackFlags.input_overflows}}T1222rcF|tj|dSr)rrrrrs rrzCallbackFlags.input_overflows! -u55555rc@|tjS)aOutput underflow. Indicates that output data (or a gap) was inserted, possibly because the stream callback is using too much CPU time. This can happen in full-duplex and output-only streams (including `playrec()` and `play()`). )rrrpaOutputUnderflowrs routput_underflowzCallbackFlags.output_underflows}}T3444rcF|tj|dSr)rrrrrs rrzCallbackFlags.output_underflows! /77777rc@|tjS)a,Output overflow. Indicates that output data will be discarded because no room is available. This can only happen in full-duplex streams (including `playrec()`), but only when ``never_drop_input=True`` was specified. See `default.never_drop_input`. )rrrpaOutputOverflowrs routput_overflowzCallbackFlags.output_overflows}}T2333rcF|tj|dSr)rrrrrs rrzCallbackFlags.output_overflowrrc@|tjS)acPriming output. Some of all of the output data will be used to prime the stream, input data may be zero. This will only take place with some of the host APIs, and only if ``prime_output_buffers_using_stream_callback=True`` was specified. See `default.prime_output_buffers_using_stream_callback`. )rrrpaPrimingOutputrs rpriming_outputzCallbackFlags.priming_outputs}}T1222rc0t|j|zS)zCheck a given flag.r)rflags rrzCallbackFlags._hasflagsDK$&'''rcP|r|xj|zc_dS|xj|zc_dS)zSet/clear a given flag.Nr)rrrs rrzCallbackFlags._updateflags4  ! KK4 KKKK KKD5 KKKKrN)r)rr6r7r8rr rrrrr9rsetterrrrrrrrOrrrr8s&&PI777 NNN!!!  4 4X 477733X3 666 5 5X 5888 4 4X 4777 3 3X 3(((!!!!!rrc4eZdZdZdddZdZdZdZdZd S) _InputOutputPairz8Parameter pairs for device, channels, dtype and latency.rrnrVrWc4ddg|_||_||_dSr)_pair_parent _default_attr)rparent default_attrs rr z_InputOutputPair.__init__s"D\  )rc|j||}|j|}| t|j|j|}|Sr) _indexmappingr#rrrrrrcrs r __getitem__z_InputOutputPair.__getitem__sI"&&ue44 5! =DL$*<==eDE rcP|j||}||j|<dSr)rr#rrs r __setitem__z_InputOutputPair.__setitem__s,"&&ue44! 5rc,d|S)Nz[{0[0]!r}, {0[1]!r}]rrs rrz_InputOutputPair.__repr__s%,,T222rN) rr6r7r8rr rrrrOrrrrscBB1--M*** """33333rrceZdZdZdZdZ dxZZ dxZZ dxZ Z dxZ Z dZ ejZ dZ dZ dZ dZ dZd Zed Zed Zd ZdS) raGet/set defaults for the *sounddevice* module. The attributes `device`, `channels`, `dtype`, `latency` and `extra_settings` accept single values which specify the given property for both input and output. However, if the property differs between input and output, pairs of values can be used, where the first value specifies the input and the second value specifies the output. All other attributes are always single values. Examples -------- >>> import sounddevice as sd >>> sd.default.samplerate = 48000 >>> sd.default.dtype ['float32', 'float32'] Different values for input and output: >>> sd.default.channels = 1, 2 A single value sets both input and output at the same time: >>> sd.default.device = 5 >>> sd.default.device [5, 5] An attribute can be set to the "factory default" by assigning ``None``: >>> sd.default.samplerate = None >>> sd.default.device = None, 4 Use `reset()` to reset all attributes: >>> sd.default.reset() )rr6r7rrNN)r r )highrNFc`|jD]%}t|d|zt||<&dS)N _default_)_pairsrvars)rattrs rr zdefault.__init__sCK J JD/kD6HIIDJJt   J Jrc||jvr)t|t||jdd<dS|t |vr$|dkrt |||dStdt|z)z'Only allow setting existing attributes.Nresetz"'default' object has no attribute ) rrrrrobject __setattr__rSrepr)rrbrs rrzdefault.__setattr__s 4;  +1%==GD$   %aaa ( ( ( SYY  47??   tT5 1 1 1 1 1 4tDzzACC CrcfttfSr)rrPa_GetDefaultInputDevicePa_GetDefaultOutputDevicers r_default_devicezdefault._default_devices*--//..002 2rcNttS)z*Index of the default host API (read-only).)rqrrPa_GetDefaultHostApirs rrdzdefault.hostapisd//11222rcpt||dS)z0Reset all attributes to their "factory default".N)rclearr rs rrz default.resets+ T  r)rr6r7r8rrr6_default_channelsr7_default_dtyper_default_latencyr_default_extra_settingsr)rrpaFramesPerBufferUnspecifiedrrrrr r rr9rrdrrOrrrrs($$LHFF $.-H 21EN "0/G1/99N,J1I3H J  27. JJJ CCC22X233X3rr I_AM_FAKEceZdZdZdZdS)rvaThis exception will be raised on PortAudio errors. Attributes ---------- args A variable length tuple containing the following elements when available: 1) A string describing the error 2) The PortAudio ``PaErrorCode`` value 3) A 3-tuple containing the host API index, host error code, and the host error message (which may be an empty string) ct|jr |jdnd}t|jdkr|d|jdd}t|jdkr^|jd\}}}|tjkrd}n"|dkrd|d }nt |d }d ||||}|S) Nrrnz [PaErrorCode ]r`zz>A  "AA$)A,AAAH ty>>A  7;y| 4Hnn41111ABxBBB)(33F;/66.(NDDHrN)rr6r7r8rrOrrrvrvs-  rrvceZdZdZdS) CallbackStopaException to be raised by the user to stop callback processing. If this is raised in the stream callback, the callback will not be invoked anymore (but all pending audio buffers will be played). See Also -------- CallbackAbort, :meth:`Stream.stop`, Stream Nrr6r7r8rOrrrr    rrceZdZdZdS) CallbackAbortaException to be raised by the user to abort callback processing. If this is raised in the stream callback, all pending buffers are discarded and the callback will not be invoked anymore. See Also -------- CallbackStop, :meth:`Stream.abort`, Stream NrrOrrrrrrrceZdZdZdS) AsioSettingsc 0t|trtdtjd||_tjdt tjdtj dtj |j|_ dS)a8ASIO-specific input/output settings. Objects of this class can be used as *extra_settings* argument to `Stream()` (and variants) or as `default.extra_settings`. Parameters ---------- channel_selectors : list of int Support for opening only specific channels of an ASIO device. *channel_selectors* is a list of integers specifying the (zero-based) channel numbers to use. The length of *channel_selectors* must match the corresponding *channels* parameter of `Stream()` (or variants), otherwise a crash may result. The values in the *channel_selectors* array must specify channels within the range of supported channels. Examples -------- Setting output channels when calling `play()`: >>> import sounddevice as sd >>> asio_out = sd.AsioSettings(channel_selectors=[12, 13]) >>> sd.play(..., extra_settings=asio_out) Setting default output channels: >>> sd.default.extra_settings = asio_out >>> sd.play(...) Setting input channels as well: >>> asio_in = sd.AsioSettings(channel_selectors=[8]) >>> sd.default.extra_settings = asio_in, asio_out >>> sd.playrec(..., channels=1, ...) z)channel_selectors must be a list or tuplezint[]zPaAsioStreamInfo*PaAsioStreamInforn)size hostApiTypeversionrkchannelSelectorsN) rintrTrxr _selectorsdictsizeofrrrpaAsioUseChannelSelectors _streaminfo)rchannel_selectorss rr zAsioSettings.__init__sL ' - - IGHH H(7,=>>8$7/00 0!_ :.:.:.//rNrr6r7r rOrrrrs#//////////rrceZdZ ddZdS)CoreAudioSettingsNFmaxc vtjtjtjtjtjd}t |trtd || |_ nF#ttf$r2}tdtt|z|d}~wwxYw|r|xj tjzc_ |r|xj tjzc_ t%jd|_t|j|j |{t%jd||_t/|jdkrtdt|j|jt/|jdSdS) a Mac Core Audio-specific input/output settings. Objects of this class can be used as *extra_settings* argument to `Stream()` (and variants) or as `default.extra_settings`. Parameters ---------- channel_map : sequence of int, optional Support for opening only specific channels of a Core Audio device. Note that *channel_map* is treated differently between input and output channels. For input devices, *channel_map* is a list of integers specifying the (zero-based) channel numbers to use. For output devices, *channel_map* must have the same length as the number of output channels of the device. Specify unused channels with -1, and a 0-based index for any desired channels. See the example below. For additional information, see the `PortAudio documentation`__. __ https://app.assembla.com/spaces/portaudio/git/source/ master/src/hostapi/coreaudio/notes.txt change_device_parameters : bool, optional If ``True``, allows PortAudio to change things like the device's frame size, which allows for much lower latency, but might disrupt the device if other programs are using it, even when you are just querying the device. ``False`` is the default. fail_if_conversion_required : bool, optional In combination with the above flag, ``True`` causes the stream opening to fail, unless the exact sample rates are supported by the device. conversion_quality : {'min', 'low', 'medium', 'high', 'max'}, optional This sets Core Audio's sample rate conversion quality. ``'max'`` is the default. Example ------- This example assumes a device having 6 input and 6 output channels. Input is from the second and fourth channels, and output is to the device's third and fifth channels: >>> import sounddevice as sd >>> ca_in = sd.CoreAudioSettings(channel_map=[1, 3]) >>> ca_out = sd.CoreAudioSettings(channel_map=[-1, -1, 0, -1, 1, -1]) >>> sd.playrec(..., channels=2, extra_settings=(ca_in, ca_out)) )minlowmediumrr z#channel_map must be a list or tuplez"conversion_quality must be one of NzPaMacCoreStreamInfo*zSInt32[]rzchannel_map must not be empty)rrpaMacCoreConversionQualityMinpaMacCoreConversionQualityLow paMacCoreConversionQualityMediumpaMacCoreConversionQualityHighpaMacCoreConversionQualityMaxrrrTlowerrKeyErrorrSr<rlistpaMacCoreChangeDeviceParameters!paMacCoreFailIfConversionRequiredrxrrPaMacCore_SetupStreamInfo _channel_maprPaMacCore_SetupChannelMap)r channel_mapchange_device_parametersfail_if_conversion_requiredconversion_qualityconversion_dictes rr zCoreAudioSettings.__init__ sl88;98    k3 ' ' CABB B A)*<*B*B*D*DEDKK.) A A AA!$"7"7889::?@ A A $ @ KK4? ?KK & B KK4A AKK 8$:;; &&t'7EEE  " $[ A AD 4$%%** ?@@@  * *4+;+/+<+.t/@+A+A C C C C C # "s BC-B>>C)NFFr rrOrrr r  s:BGGLWCWCWCWCWCWCrr ceZdZddZdS)WasapiSettingsFc d}|r|tjz}n|r|tjz}tjdt tjdtjd||_dS)aWASAPI-specific input/output settings. Objects of this class can be used as *extra_settings* argument to `Stream()` (and variants) or as `default.extra_settings`. They can also be used in `check_input_settings()` and `check_output_settings()`. Parameters ---------- exclusive : bool Exclusive mode allows to deliver audio data directly to hardware bypassing software mixing. auto_convert : bool Allow WASAPI backend to insert system-level channel matrix mixer and sample rate converter to support playback formats that do not match the current configured system settings. This is in particular required for streams not matching the system mixer sample rate. This only applies in *shared mode* and has no effect when *exclusive* is set to ``True``. Examples -------- Setting exclusive mode when calling `play()`: >>> import sounddevice as sd >>> wasapi_exclusive = sd.WasapiSettings(exclusive=True) >>> sd.play(..., extra_settings=wasapi_exclusive) Setting exclusive mode as default: >>> sd.default.extra_settings = wasapi_exclusive >>> sd.play(...) rzPaWasapiStreamInfo*PaWasapiStreamInforn)rrrrkN) rrpaWinWasapiExclusivepaWinWasapiAutoConvertrxrrrpaWASAPIr)r exclusive auto_convertrks rr zWasapiSettings.__init__r s}H  1 T. .EE  1 T0 0E8$94122  < < <   rN)FFrrOrrr#r#p s(. . . . . . rr#c~eZdZdZdZdZdZdZdxZZ dxZ Z dxZ Z dZddZdZdZdZd Zd Zd Zd Zd ZddZdS)r!z)rr8rr6r7r*rms rr2z_CallbackContext.check_out s5 ;~ :;;;"+G4?#FHHH #2==#9#9::H} g.((FH-uC(@@CC"y FHIEU##*7H== 9Q<3w<< ' 'CEE E& $F{rc|xj|zc_t|j|jz t ||_dS)zCheck status and blocksize.N)rr rframerr)rrr(s rrz_CallbackContext.callback_enter s6 v T[4:5s4yyAArct|jD]4\}}|d|j|f|j|j|j|jz|f<5dSr)rr>rr8r?)rr1targetsources rr0z_CallbackContext.read_indata se ((:;; 0 0NFF./ HTZ T^ ;;VC D D 0 0rc|j|j|j|jz|d|j|jf<d|d|j|jf<|jrl|jt |krTd|_||jd}t|jt ||_| |dSd||jd<dSNr) r(r?rr?r7rrr rr)rrs rrz_CallbackContext.write_outdata s Idjdn!<< = !4459:!556 9 )#g,,66DJdnoo.G c'll;;DN   w ' ' ' ' ''(GDNOO $ $ $rcL|jst|xj|jz c_dSr)rrr?rs rrz_CallbackContext.callback_exit s(~   dn$ rc|jd|_d|_d|j_d|j_dSr)r0setr(r8rIrrrs rrz"_CallbackContext.finished_callback! s<   $ )- &&&rc t|d|||||jd||_|j|a|r|dSdS)N)r)r6r7rrrO)rJrrIr$rDrE)r StreamClassr)r6r7rr+r,s rr$z_CallbackContext.start_stream* s !k,Z+3(-+3484J ,, %+ ,,    IIKKKKK  rTc |j|j|n#|j|wxYw|jr|jndS)z[Wait for finished_callback. Can be interrupted with a KeyboardInterrupt. N)r0rErIrKr)rrGs rrEz_CallbackContext.wait9 sa  - JOO    K  m , , , ,DK  m , , , ,"k3t{{t3s 6AFr5)rr6r7r8rr(r8r?r4r&r5r'r>r?r7r r"r2rr0rrrr$rErOrrr!r! sFFI D C E'++N_!%%K,%))MNO & & & &"""H@BBB 0 0 0 ) ) )%%% ...    4 4 4 4 4 4rr!c4|}|d=|S)z,Return a copy of d without the 'self' entry.rcopy)ds rr?r?F s A & Hrcddl}|||}nl||d}||}|dkrt d|}|dz}||fS)zCheck mapping, obtain channels.rNTrMrnzchannel numbers must not be < 1)rr6rr<r r<r )r*r6rms rr3r3M s))H%%((7(..--(( ;;==1  >?? ?;;==1  H rcddl}||j}|tvrn(|dkrd}nt dt |z|S)z Check dtype.rNfloat64r zUnsupported data type: )rr7rb_sampleformatsrTr)r7rms rr2r2\ s_ HHUOO E  )  1DKK?@@@ Lrc2|dvsJ|tj|}|tj|}|tj|}|tj|}|tj|}| tj}t||d}t|}||d|zdz} tj d|j }n#t$rYnwxYw t|}n(#t$r} td|zd z| d} ~ wwxYwt!t"|} |d vr|d |zd z|zd z}||d}t'jd|||||r|jn t&jf} | || |fS)z?Get parameters for one direction (input or output) of a stream.rNTr^rlrmrzInvalid z sample format)r rdefault_rrrkzPaStreamParameters*)rrr6r7rrr)rtrY_sysmodulesrb ExceptionrSrr<rqrrPa_GetSampleSizerxrrr) rrr6r7rrr)r sampleformatr!rrs rrri s & & & & & ~%#D) } d#/$' /5' FD > > >F  D 34  W%++E227      F%e, FFFd*-==>>AEF--l;;<>H (''X'' d+++ ++--66t7GHHT^44;;==!4>>AXsN;;; 3 ' ''rc|dvsJ| tj}t|\}}|dkr|}n4|dkr|}n+||kr|}n"td|t |t r|Sg}ttD]R\}}|r|d|zdzdkr9t|d }| ||d |d fS| } | } g} g} |D]\}} }| d z|z}d}| D]D}| ||}|dkrni|t|z }E| ||f| | | fvr| ||d }| s)|r%td |zdzt|zdSt| dkrgt| dkr| dS|rHtd|zdzt|zdzdd| DzdS| ddS)z2Return device ID given space-separated substrings.rUNrVrWz+Input and output device are different: {!r}rlrmrrdrbrz input/outputzNo z device matching rfrnz Multiple z devices found for z: rsc3,K|]\}}d|d|VdS)[z] NrO)r[idrbs rr]z!_get_device_id.. sR'@'@+32t(82'7'7'7'7'@'@'@'@'@'@r)rrrr<rrrrrYrappendrsplitfindrrr)id_or_query_stringrr_rr device_listrqr hostapi_info query_string substringsmatchesexact_device_matches device_stringhostapi_string full_stringpos substrings rrtrt s5 , , , , ,!$^*++JD$ w!   ! 4<#d*^; # 0 0I##%%**9c::CQww 3y>> !CC NNB , - - - 3 3 5 5{7H7H7J7JKKK$++B/// |    22T:L5M5MMOO O2 7||a # $ $ ) )'* *  [4/2GG!"45568=>!YY'@'@7>'@'@'@@@@AA A 2 1:a=rcd} tjd}tjtjtj}tj|dtj|n#t$rYnwxYw tt dtdz a |+tj|dtj|dSdS#|*tj|dtj|wwxYw)aInitialize PortAudio. This temporarily forwards messages from stderr to ``/dev/null`` (where supported). In most cases, this doesn't have to be called explicitly, because it is automatically called with the ``import sounddevice`` statement. Nr`zError initializing PortAudiorn) _osdupopendevnullO_WRONLYdup2rKOSErrorrqrr Pa_Initialize _initialized) old_stderrrs r _initializer s J WQZZ (3; 55 ! '      "t!!##%CDDD  ! HZ # # # Ij ! ! ! ! ! " !: ! HZ # # # Ij ! ! ! ! "sA&A++ A87A8<1C.D chttdtdzadS)zYTerminate PortAudio. In most cases, this doesn't have to be called explicitly. zError terminating PortAudiornN)rqrr Pa_TerminaterrOrr _terminater3 s/ 4     =>>>ALLLrctdksJtr sx 1    & ""$$$##%%%   r__main__)NNFF)NNNNNNFr5rr)NNNNN)rrK)Wr8 __version__atexit_atexitosrplatform _platformsysrV ctypes.utilr _find_library _sounddevicerrx_libnamerdlopenrrsystem architecture_sounddevice_datapathrnextiter__path__ paFloat32paInt32paInt24paInt16paInt8paUInt8rSrrDr-r9rBrErJrPrSrYrrrrrrr;rLr]r3r%r=rrorrrhasattrrXrvrrrr r#r!r?r3r2rrrrrrqrtrrrregisterrprintrOrrrs*< 555555$$$$$$! 5 5 !=**   E g3444 4;x DD ! ! !yX%%'    y ( (!$:I$:$<$ I I I I P P Pv0v0v0v0v0v0v0v0r Q-Q-Q-Q-Q-[Q-Q-Q-h\\\\\k\\\~1717171717171717hF F F F F .F F F RS1S1S1S1S1?S1S1S1l~7~7~7~7~7[,~7~7~7B!!!!!!!!He!e!e!e!e!e!e!e!P333333332ccccccccLwt[!!giiGYD     9        I   1/1/1/1/1/1/1/1/hYCYCYCYCYCYCYCYCx0 0 0 0 0 0 0 0 f`4`4`4`4`4`4`4`4F         &5&5&5R   <<< &((((.????D"""8     z E--//s/ABC'&C'