mi%ZddlZddlZddlmZddlZddlZddlZddl Z ddl Z ddl Z ddlmZdZGddZddZd Zd Zd Zd Zdd ZddZ dde j2de j4eefdedede j:dde j:ddede j:dfdZy)N)Path)temp_filenamesc tjdddt|ddddg}tj|j dS) Nffprobe -loglevelpanicz -print_formatjsonz -show_formatz -show_streamszutf-8)sp check_outputstrr loadsdecode)path stdout_datas F/var/www/stems/demucs_env/lib/python3.12/site-packages/demucs/audio.py _read_inforsG//; D ?FNO#K ::k((1 22ceZdZdZdefdZdZedZedZ edZ dZ d d Z d d Z d d ed d d fd Zy ) AudioFilez Allows to read audio from any format supported by ffmpeg, as well as resampling or converting to mono on the fly. See :method:`read` for more details. rc2t||_d|_yN)rr_info)selfrs r__init__zAudioFile.__init__!sJ  rcd|jfg}|jd|jf|jd|jf|jdt |fdj d|D}d|dS) Nr sampleratechannelsstreamsz, c30K|]\}}|d|yw)=N).0namevalues r z%AudioFile.__repr__..*s O{tUD65'!2 Osz AudioFile())rappendrrlenjoin)rfeatures features_strs r__repr__zAudioFile.__repr__%szTYY'(t'89:T]]_56CI./yy Oh OO L>++rcf|jt|j|_|jSr)rrrrs rinfozAudioFile.info-s& :: #DII.DJzzrc8t|jddS)Nformatduration)floatr0r/s rr3zAudioFile.duration3sTYYx(455rctt|jdDcgc]\}}|ddk(r|c}}Scc}}w)Nr codec_typeaudio) enumerater0)rindexstreams r_audio_streamszAudioFile._audio_streams7sC(191E'F #eVl#w.    s4c,t|jSr)r)r;r/s r__len__zAudioFile.__len__>s4&&''rcXt|jd|j|dS)Nrrintr0r;rr:s rrzAudioFile.channelsAs+499Y'(;(;F(CDZPQQrcXt|jd|j|dS)Nr sample_rater?rAs rrzAudioFile.samplerateDs+499Y'(;(;F(CD]STTrNcVtjtt||}t |tj  }|r|g}|d}d}nCt |xs|j|z}t|dz|xs|jz }tt|5} ddg} | ddgz } |r| dt|gz } | dt|jgz } t|| D]T\} } | d d |j| gz } || d t|gz } | d d gz } | ddgz } || dt|gz } | | gz } Vtj| dg} | D]} tj | tj"}t%j&|}|j)d|j+j-}| t/||}| |dd|f}| j1| dddt%j2 d}|r|d}|S#1swY)xYw)a, Slightly more efficient implementation than stempeg, in particular, this will extract all stems at once rather than having to loop over one file multiple times for each stream. Args: seek_time (float): seek time in seconds or None if no seeking is needed. duration (float): duration in seconds to extract or None to extract until the end. streams (slice, int or list): streams to extract, can be a single int, a list or a slice. If it is a slice or list, the output will be of size [S, C, T] with S the number of streams, C the number of channels and T the number of samples. If it is an int, the output will be [C, T]. samplerate (int): if provided, will resample on the fly. If None, no resampling will be done. Original sampling rate can be obtained with :method:`samplerate`. channels (int): if 1, will convert to mono. We do not rely on ffmpeg for that as ffmpeg automatically scale by +3dB to conserve volume when playing on speakers. See https://sound.stackexchange.com/a/42710. Our definition of mono is simply the average of the two channels. Any other value will be ignored. Nrffmpegz-yrr z-ssz-iz-mapz0:z-tz-threads1z-ff32lez-arT)check)dtype.r)dim)nparrayranger) isinstancendarrayr@rr4rr rzipr;r runfromfilefloat32torch from_numpyviewrtconvert_audio_channelsr(stack)r seek_timer3rrrsingle target_sizequery_duration filenamescommandr:filenamewavswavs rreadzAudioFile.readGsJ6((5T+,W544 iG  K!Nz>T__->(JKK"K!O 8WdooFW#XYN CL ) !Y&G  W- -GE3y>22 c$))n- -G$'$; & Fb)<)||dk(r|S|jjsJd|dk(r0|td|jjzdz }|S|dk(r|j dd}|S|d k(rt j |}|Std |) z9 different strategies for avoiding raw clipping. noneztoo late for clippingrescaleg)\(?rclampgGzgGz?tanhz Invalid mode )rIr|maxabsrrUrrq)rcmodes r prevent_cliprs |tv~ 99 & &?(?? & yCswwy}}.22 J iit$ J jjo J=/00rrcrrrclip)rrrrbits_per_sample) as_floatpreset)cdt||}t|}|jj}|dk(rt |||||dy |dk(r-|rd}d} nd} t j t|||| | y |d k(r#t j t|||| y td |)a Save audio file, automatically preventing clipping if necessary based on the given `clip` strategy. If the path ends in `.mp3`, this will save as mp3 with the given `bitrate`. Use `preset` to set mp3 quality: 2 for highest quality, 7 for fastest speed )rz.mp3T)rz.wavrPCM_FPCM_S)rCencodingrz.flac)rCrzInvalid suffix for path: N) rrsuffixlowerrtasaver rq) rcrrrrrrrrrs r save_audiors s &C :D [[   F 3j'64H 6   OHH D 3J!? D 7  D 3JX4VH=>>r)r)iD@rF)r)rrrFr) r subprocessr pathlibrrrurrLrU torchaudiortypingtputilsrrrrYryrrrrrTensorUnionr r@Literalboolrr"rrrs    !3ppf4E )&*"FO9; %67?ELL?XXc4i(???ZZ BC ? !# : 6 ?  ?zz"23?r