o i@sUdZddlZddlZddlZddlmZddlmZmZddl Z ddl m Z ddl m Z ddlmZeZiaee efed<daee ed <e jd e jd iZd d de dedefddZdS)zDTMF audio utilities. This module provides functionality to load DTMF (Dual-Tone Multi-Frequency) audio files corresponding to phone keypad entries. Audio data is cached in-memory after first load to improve performance on subsequent accesses. N)files)DictOptional) KeypadEntry)BaseAudioResampler)create_file_resampler__DTMF_AUDIO____DTMF_RESAMPLER__zdtmf-pound.wavz dtmf-star.wavi@) sample_ratebuttonr returnc spt4IdH|tvrt|WdIdHStstat|d|jd}td|}t |d4IdH}| IdH}WdIdHn 1IdHsSwYt |7}t |d!}||}|} t|| |IdH} | t|<Wdn1swYWdn1swYWdIdHt|S1IdHswYt|S)a<Load audio for DTMF tones associated with the given button. Args: button (KeypadEntry): The button for which the DTMF audio is to be loaded. sample_rate (int, optional): The sample rate for the audio. Defaults to 8000. Returns: bytes: The audio data for the DTMF tone as bytes. Nzdtmf-z.wavzpipecat.audio.dtmfrb) __DTMF_LOCK__rr r__DTMF_FILE_NAMEgetvaluerjoinpathaiofilesopenreadioBytesIOwave readframes getnframes getframerateresample) r r dtmf_file_namedtmf_file_pathfdatabufferwfaudioin_sample_rateresampled_audior&L/home/ubuntu/.local/lib/python3.10/site-packages/pipecat/audio/dtmf/utils.pyload_dtmf_audio$s6 (  r()__doc__asynciorrimportlib.resourcesrtypingrrrpipecat.audio.dtmf.typesr-pipecat.audio.resamplers.base_audio_resamplerrpipecat.audio.utilsrLockrrbytes__annotations__r POUNDSTARrintr(r&r&r&r's"