q hXSSKJr SSKJrJr SSKJr SSKJ r SSK J r "SS5r g ) ) annotations) FfiClient FfiHandle)ffi_pb2) get_address) AudioFramec`\rSrSrSrSSSSS.S SjjrS SjrS SjrS SjrS r g )AudioProcessingModule z Provides WebRTC audio processing capabilities including echo cancellation, noise suppression, high-pass filtering, and gain control. F)echo_cancellationnoise_suppressionhigh_pass_filterauto_gain_controlc\[R"5nXRlX%RlX5RlXERl[RRU5n[URRRR5Ulg)a Initialize an AudioProcessingModule instance with the specified audio processing features. Args: echo_cancellation (bool, optional): Whether to enable echo cancellation. noise_suppression (bool, optional): Whether to enable noise suppression. high_pass_filter (bool, optional): Whether to enable a high-pass filter. auto_gain_control (bool, optional): Whether to enable auto gain control. N) proto_ffi FfiRequestnew_apmecho_canceller_enablednoise_suppression_enabledhigh_pass_filter_enabledgain_controller_enabledrinstancerequestrapmhandleid _ffi_handle)selfr rrrreqresps A/var/www/html/env/lib/python3.13/site-packages/livekit/rtc/apm.py__init__AudioProcessingModule.__init__ss"""$-> *0A -/? ,.? +!!))#.$T\\%5%5%<%<%?%?@cFURRS5n[R"5nURR UR l[[U55UR l [U5UR l URUR l URUR l[R R#U5nUR R$(a['UR R$5eg)a, Process the provided audio frame using the configured audio processing features. The input audio frame is modified in-place (if applicable) by the underlying audio processing module (e.g., echo cancellation, noise suppression, etc.). Important: Audio frames must be exactly 10 ms in duration. bN)datacastrrrrapm_process_stream apm_handler memoryviewdata_ptrlensize sample_rate num_channelsrrrerror RuntimeErrorrr(bdatar r!s r"process_stream$AudioProcessingModule.process_stream)s s#""$,0,<,<,C,C)*5j6G*H'&)%j#-1-=-=*.2.?.?+!!))#.  " " ( (t66<<= = )r%cFURRS5n[R"5nURR UR l[[U55UR l [U5UR l URUR l URUR l[R R#U5nUR$R&(a[)UR$R&5eg)a Process the reverse audio frame (typically used for echo cancellation in a full-duplex setup). In an echo cancellation scenario, this method is used to process the "far-end" audio prior to mixing or feeding it into the echo canceller. Like `process_stream`, the input audio frame is modified in-place by the underlying processing module. Important: Audio frames must be exactly 10 ms in duration. r'N)r(r)rrrrapm_process_reverse_streamr+rr,r-r.r/r0r1rrrr*r2r3r4s r"process_reverse_stream,AudioProcessingModule.process_reverse_streamAs s#""$484D4D4K4K&&12=j>O2P&&/.1%j&&+595E5E&&26:6G6G&&3!!))#.  " " ( (t66<<= = )r%cJ[R"5nURRURlXRl[RRU5nURR(a[URR5eg)a This must be called if and only if echo processing is enabled. Sets the `delay` in ms between `process_reverse_stream()` receiving a far-end frame and `process_stream()` receiving a near-end frame containing the corresponding echo. On the client-side this can be expressed as delay = (t_render - t_analyze) + (t_process - t_capture) where, - t_analyze is the time a frame is passed to `process_reverse_stream()` and t_render is the time the first sample of the same frame is rendered by the audio hardware. - t_capture is the time the first sample of a frame is captured by the audio hardware and t_process is the time the same frame is passed to `process_stream()`. N) rrrrapm_set_stream_delayr+delay_msrrrr2r3)rr>r r!s r"set_stream_delay_ms)AudioProcessingModule.set_stream_delay_msZsy ""$.2.>.>.E.E  +,4  )!!))#.  $ $ * *t88>>? ? +r%)rN) r boolrrArrArrAreturnNone)r(r rBrC)r>intrBrC) __name__ __module__ __qualname____firstlineno____doc__r#r6r:r?__static_attributes__r%r"r r sb#("'!&"' A A A  A  A A4>0>2@r%r N) __future__r _ffi_clientrr_protorr_utilsr audio_framer r rKr%r"rQs""-(#h@h@r%