o dZh3;@sxddlmZddlZddlZddlZddlZddlZddlZddlZddl Z ddl Z Gddde Z ddZ ddZdS) ) annotationsNc@sXeZdZdZddZedddZdd d Zdd d ZdddZ dddZ dddZ d S) AudioDataa Creates a new ``AudioData`` instance, which represents mono audio data. The raw audio data is specified by ``frame_data``, which is a sequence of bytes representing audio samples. This is the frame data structure used by the PCM WAV format. The width of each sample, in bytes, is specified by ``sample_width``. Each group of ``sample_width`` bytes represents a single audio sample. The audio data is assumed to have a sample rate of ``sample_rate`` samples per second (Hertz). Usually, instances of this class are obtained from ``recognizer_instance.record`` or ``recognizer_instance.listen``, or in the callback for ``recognizer_instance.listen_in_background``, rather than instantiating them directly. cCsZ|dksJd|ddkrd|krdks JdJd||_||_t||_dS)Nrz&Sample rate must be a positive integerz.Sample width must be between 1 and 4 inclusive) frame_data sample_rateint sample_width)selfrrr r G/var/www/auris/lib/python3.10/site-packages/speech_recognition/audio.py__init__s zAudioData.__init__ file_pathstrreturncCsHddl}|}|| }||WdS1swYdS)z8Creates a new ``AudioData`` instance from an audio file.rN)Zspeech_recognitionZ RecognizerZ AudioFilerecord)clsrsrrsourcer r r from_file$s  $zAudioData.from_fileNcCs|dus |dks Jd|dus||durdn|ksJd|dur%d}n t||j|jd}|dur;t|j}n t||j|jd}t|j|||j|jS)ag Returns a new ``AudioData`` instance, trimmed to a given time interval. In other words, an ``AudioData`` instance with the same audio data except starting at ``start_ms`` milliseconds in and ending ``end_ms`` milliseconds in. If not specified, ``start_ms`` defaults to the beginning of the audio, and ``end_ms`` defaults to the end. Nrz*``start_ms`` must be a non-negative numberzI``end_ms`` must be a non-negative number greater or equal to ``start_ms``i)rrr lenrr)r Zstart_msZend_msZ start_byteZend_byter r r get_segment-s.   zAudioData.get_segmentc sN|dus |dks Jd|dus(|ddkr$d|kr#dks(JdJd|j|jdkr7tdd|durN|j|krNt|jd|j|d\}|dur|j|kr|dkrt|jdz td ddWntjyd fd d t dt dDYnwt|j|nt|j||dkrtdd S) a) Returns a byte string representing the raw frame data for the audio represented by the ``AudioData`` instance. If ``convert_rate`` is specified and the audio sample rate is not ``convert_rate`` Hz, the resulting audio is resampled to match. If ``convert_width`` is specified and the audio samples are not ``convert_width`` bytes each, the resulting audio is converted to match. Writing these bytes directly to a file results in a valid `RAW/PCM audio file `__. Nrz4Sample rate to convert to must be a positive integerrrz~s  z)AudioData.get_raw_data..) rr audioopZbiasrZratecvZlin2linerrorjoinranger)r convert_rate convert_width_r rr get_raw_dataKsd     zAudioData.get_raw_datac Cs|||}|dur |jn|}|dur|jn|}t3}t|d}z||||| d| || }W| n| wWd|S1sRwY|S)a! Returns a byte string representing the contents of a WAV file containing the audio represented by the ``AudioData`` instance. If ``convert_width`` is specified and the audio samples are not ``convert_width`` bytes each, the resulting audio is converted to match. If ``convert_rate`` is specified and the audio sample rate is not ``convert_rate`` Hz, the resulting audio is resampled to match. Writing these bytes directly to a file results in a valid `WAV file `__. Nwbr) r)rr ioBytesIOwaveopen setframerate setsampwidth setnchannels writeframesgetvalueclose) r r&r'rrr Zwav_fileZ wav_writerwav_datar r r get_wav_datas$           zAudioData.get_wav_datac s||||dur |jn|}|dur|jn|ttdr$tnddddfddtdtDt 3}t |d}z| |||d||}W|n|wWd|S1s|wY|S) aB Returns a byte string representing the contents of an AIFF-C file containing the audio represented by the ``AudioData`` instance. If ``convert_width`` is specified and the audio samples are not ``convert_width`` bytes each, the resulting audio is converted to match. If ``convert_rate`` is specified and the audio sample rate is not ``convert_rate`` Hz, the resulting audio is resampled to match. Writing these bytes directly to a file results in a valid `AIFF-C file `__. Nbyteswaprrc3s"|] }||dVqdS)r8Nr rrr r r r s  z*AudioData.get_aiff_data..r*)r)rr hasattrr"r7r$r%rr+r,aifcr.r/r0r1r2r3r4)r r&r'rZ aiff_fileZ aiff_writerZ aiff_datar r9r get_aiff_datas2            zAudioData.get_aiff_datac Cs|dus|ddkrd|krdksJdJd|jdkr'|dur'd}|||}t}tjdkrFt}|jtjO_tj |_ nd}tj |ddd d gtj tj |d }| |\}}|S) a Returns a byte string representing the contents of a FLAC file containing the audio represented by the ``AudioData`` instance. Note that 32-bit FLAC is not supported. If the audio data is 32-bit and ``convert_width`` is not specified, then the resulting FLAC will be a 24-bit FLAC. If ``convert_rate`` is specified and the audio sample rate is not ``convert_rate`` Hz, the resulting audio is resampled to match. If ``convert_width`` is specified and the audio samples are not ``convert_width`` bytes each, the resulting audio is converted to match. Writing these bytes directly to a file results in a valid `FLAC file `__. Nrrrz    zAudioData.get_flac_data)rrrr)NN) __name__ __module__ __qualname____doc__r classmethodrrr)r6r<rLr r r r rs     H *rcCs:td}|dur_tjtjt}tt}}|dkr+|dvr+tj |d}n4|dkr;|dvr;tj |d}n$|d krK|d vrKtj |d }n|d kr[|d vr[tj |d }nt dz3t |tj st |}t||jt jBd tvrtjdkrtntdW|SW|SW|St yY|Sw)zdReturns the absolute path of a FLAC converter executable, or raises an OSError if none can be found.ZflacNWindows>x86_64x86AMD64i786i686zflac-win32.exeDarwin>rSrTarm64rUrVrWzflac-macLinux>rWrTrVzflac-linux-x86>rSrUzflac-linux-x86_64zFLAC conversion utility not available - consider installing the FLAC command line application by running `apt-get install flac` or your operating system's equivalent)rrsync) shutil_whichrCpathdirnameabspath__file__platformsystemmachiner$OSErroraccessX_OKstatchmodst_modeS_IEXECsys version_infor[)rI base_pathrbrc stat_infor r r rBsB     rBcCsRtd}|tjjD]}tj||}tj|r&t|tjr&|Sq dS)zDPython 2 compatibility: backport of ``shutil.which()`` from Python 3PATHN) rCgetenvsplitr]pathsepr$existsrerf)Zpgmr]pr r r r\Cs r\) __future__rr;r"r+rCrargrErkr-objectrrBr\r r r r s  3