o Si\@s@dZddlZddlZddlZddlZddlZddlmZm Z ddl m Z ddl m Z mZmZddlZddlmZmZmZddlmZmZddlmZd Zd d Zd d Zd$ddZ d%dede fddZ  d&dededeedeede e e e efff ddZ!de dededeefdd Z"d!e#dedeefd"d#Z$dS)'ak LibriSpeechMix dataset preparation for Lhotse. This recipe processes LibriSpeechMix metadata to create multi-speaker mixtures from LibriSpeech recordings. LibriSpeechMix provides predefined speaker combinations and timing information for creating consistent mixtures. For more details, see: - GitHub repository: https://github.com/NaoyukiKanda/LibriSpeechMix/ N)ThreadPoolExecutor as_completed)Path)DictListOptional)CutSetMonoCutmix)manifests_existread_manifests_if_cached)Pathlikei>cCsNtjj|ddid}tj| }t|WdS1s wYdSNz User-Agentz python-urllib)headers)urllibrequestRequesturlopenjsonloadurlreqresprQ/home/ubuntu/.local/lib/python3.10/site-packages/lhotse/recipes/librispeechmix.py _fetch_jsons$rcCsLtjj|ddid}tj| }|WdS1swYdSr)rrrrreadrrrr _fetch_bytes#s$rmain.c Csd|d|d|d|}t|}tj|dd|D]@}tj||d}|dd krKt|d } | t|d Wdn1sEwYq|dd kr[t|||d ||qdS)Nzhttps://api.github.com/repos//z /contents/z?ref=T)exist_oknametypefilewb download_urldirpath) rosmakedirsr)joinopenwriterdownload_github_dir) userrepor)branchsave_dirapi_urlfilesr% file_pathfrrrr/)s   r/ target_dirreturncCsrt|}|jddd|d}|d}|r"td|d|Std|dtd d dd |||S) z!Download LibriSpeechMix metadata.Tparentsr"listz .completedzSkipping download because z exists.zMDownloading https://github.com/NaoyukiKanda/LibriSpeechMix/tree/main/list to ... NaoyukiKandaLibriSpeechMixr)rmkdiris_filelogginginfor/touch)r8 metadata_dircompleted_detectorrrrdownload_librispeechmix8s rGlibrispeech_root_pathlibrispeechmix_metadata_path output_dirnum_jobscCs.|durt|}|jdddi}t|d}dd|D}|dur,t||ddd }|D]f}t|j}t||ddd rGtd |d q.td |dt|dd| dddd} t | } dd} | |  } t|| |} t | } |dur| |d|dd| i||<q.|S)a Prepare LibriSpeechMix manifests for multi-speaker mixtures. Args: librispeech_root_path: Path to LibriSpeech manifests librispeechmix_metadata_path: Path to LibriSpeechMix metadata JSONL files output_dir: Directory to save manifests num_jobs: Number of parallel threads used for processing (default: 1) Returns: Dict with keys for each split containing CutSets NTr:z/*.jsonlcSsg|]}t|jqSr)rstem).0r7rrr isz*prepare_librispeechmix..librispeechmix)cutset) dataset_partsrKprefixtypes)partrKrSrTzLibriSpeechMix subset: z already prepared - skipping. Processing r=librispeech_cutset_-z .jsonl.gzcSs |j|_|S)N) recording_idid)cutrrruse_recording_idsz0prepare_librispeechmix..use_recording_idlibrispeechmix_cutset_rQ)rr@globr rMr rBrCr,splitr from_filemapto_eager _process_librispeechmix_metadata from_cutsto_file)rIrJrKrL manifestsmetadata_filesrR metadata_file part_namelibrispeech_cutset_pathlibrispeech_cutsetr]cutsrQrrrprepare_librispeechmixMsT     rnrirlc sg}t|d}|D] }|t|q Wdn1s!wYg}tdt|d|dt|d.fdd|D}t j t |t|d D]}| }|dur`||qQWd|S1slwY|S) z-Process a LibriSpeechMix metadata JSONL file.rNrVz entries from r=) max_workerscsg|] }t|qSr)submit_process_metadata_entry)rNentryexrlrrrOs z4_process_librispeechmix_metadata..)total) r-appendrloadsstriprBrClenrtqdmrresult) rirlrLmetadata_entriesr7linermfuturesr|rrtrrds,       rdrsc Cs|ddd}|d}|d}g}t|D],\}}t|j}||} |t|kr.||nd} | dkr>| j| | jdd } || qt|t|krPtd |d} |d d D] } t | | dd } qZ|| _ | S)z4Process a single metadata entry from LibriSpeechMix.r[r!rYwavsdelaysgrleft) directionzNot all mono cuts collectedrHN) preserve_id) r` enumeraterrMrzpaddurationrw ValueErrorr r[) rsrl mixture_idrr source_cutsiwav_pathcut_idr\delay mixed_cut source_cutrrrrrs$  rr)rr )r )NrH)%__doc__r_rrBr*urllib.requestrconcurrent.futuresrrpathlibrtypingrrrr{lhotse.cut.setrr r lhotse.recipes.utilsr r lhotse.utilsr RATErrr/rGintstrrnrddictrrrrrrsh      U