o ziK@sddlZddlZddlZddlZddlmZddlmZddlZddl Z ddl Z de de fddZde d eee ffd d ZGd d d ZdS)N)Path)Tuplefilepathquietc Csddd|dddddg }|r|d g7}tj|tjd d }|d }|d }||d}t||dd }t||dd}t||dd } t||dd} t||dd } t||dd } ||| | | | d} | S)amTakes a path to an audio file, returns a dict with the loudness stats computed by the ffmpeg ebur128 filter. Parameters ---------- filepath : str Path to compute loudness stats on. quiet : bool Whether to show FFMPEG output during computation. Returns ------- dict Dictionary containing loudness stats. ffmpegz-nostatsz-iz-filter_complexebur128z-fnull-z -hide_bannerT)stderruniversal_newlineszSummary:NzI:zLRA:zlow:zhigh:)Iz I ThresholdLRAz LRA ThresholdzLRA LowzLRA High) subprocessPopenPIPE communicaterfindsplitfloatindex)rrffargsprocstats summary_index summary_listi_lufsi_threshlra lra_threshlra_lowlra_high stats_dictr$J/home/ubuntu/.local/lib/python3.10/site-packages/audiotools/core/ffmpeg.py r128stats s<    r&pathreturncCsrtj|didd}t|jtjddd}d}d}|D]}|dd kr2|d d}|d }nqt||fS) zcGiven a path to a file, returns the start time offset and codec of the first audio stream. Nzv-show_entries format=start_time:stream=duration,start_time,codec_type,codec_name,start_pts,time_base -of json -v quiet)inputsglobal_options)stdoutrstreams codec_typeaudio start_time codec_name) ffmpyFFprobejsonloadsrunrrgetr)r'ffr,seconds_offsetcodecstreamr$r$r%ffprobe_offset_and_codecAs    r<c@sLeZdZdZd defddZd dedefddZed d e defd d Z dS) FFMPEGMixinNTrcCsg}tjdd&}t|jD]}|||jt|j|d}||dqWdn1s1wYt t | |_ |S)a^Computes loudness of audio file using FFMPEG. Parameters ---------- quiet : bool, optional Whether to show FFMPEG output during computation, by default True Returns ------- torch.Tensor Loudness of every item in the batch, computed via FFMPEG. .wavsuffix)rrN)tempfileNamedTemporaryFilerange batch_sizewritenamer&appendtorch from_numpynparrayr _loudnessloudness)selfrrMfiloudness_statsr$r$r%ffmpeg_loudnessZszFFMPEGMixin.ffmpeg_loudness sample_ratecCsddlm}||jkr |Stjdd;}||j|jdd}d|jd|d |}|r3|d 7}t t |||}t t |Wd |S1sQwY|S) aResamples AudioSignal using FFMPEG. More memory-efficient than using julius.resample for long audio files. Parameters ---------- sample_rate : int Sample rate to resample to. quiet : bool, optional Whether to show FFMPEG output during computation, by default True Returns ------- AudioSignal Resampled AudioSignal. r) AudioSignalr>r?wavzrs.wavz ffmpeg -i z -ar  z -hide_banner -loglevel errorN) audiotoolsrTrSrArBrErFreplacer check_callshlexrrunlink)rNrSrrTrOf_outcommand resampledr$r$r%ffmpeg_resamplets      zFFMPEGMixin.ffmpeg_resample audio_pathc Kst|}t_}tt|d}tt|d}d}|r!|d7}tj|di|di|d}|t|\} } | dkrA| d krAd } tj|di|d | d d i|d}|||fi|} Wd| S1sjwY| S)a1Loads AudioSignal object after decoding it to a wav file using FFMPEG. Useful for loading audio that isn't covered by librosa's loading mechanism. Also useful for loading mp3 files, without any offset. Parameters ---------- audio_path : str Path to load AudioSignal from. quiet : bool, optional Whether to show FFMPEG output during computation, by default True Returns ------- AudioSignal AudioSignal loaded from file with FFMPEG. z extracted.wavz padded.wavz-yz -loglevel errorNz-af aresample=async=1000)r)outputsr*mp3gS㥛?r-z -af 'adelay=iz :all=true')strrATemporaryDirectoryrr2FFmpegr6r<) clsr`rkwargsdwav_file padded_wavr*r8padr:signalr$r$r%load_from_file_with_ffmpegs6   **z&FFMPEGMixin.load_from_file_with_ffmpeg)T) __name__ __module__ __qualname__rLboolrRintr_ classmethodrcrmr$r$r$r%r=Ws !r=)r4rZrrApathlibrtypingrr2numpyrJrHrcrqr&rr<r=r$r$r$r%s  4