110 lines
4.5 KiB
Python
110 lines
4.5 KiB
Python
import os, subprocess, shutil, json, re, orjson, requests
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from pathlib import Path
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from faster_whisper import WhisperModel
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MEILI_URL = os.getenv("MEILI_URL", "http://meili:7700")
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MEILI_KEY = os.getenv("MEILI_KEY", "")
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LIB = Path(os.getenv("LIBRARY_ROOT", "/library"))
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TRN = Path(os.getenv("TRANSCRIPT_ROOT", "/transcripts"))
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TMP = Path(os.getenv("TMP_ROOT", "/tmpdl"))
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MODEL_NAME = os.getenv("WHISPER_MODEL","large-v3")
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COMPUTE = os.getenv("WHISPER_PRECISION","int8")
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TRN.mkdir(parents=True, exist_ok=True)
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LIB.mkdir(parents=True, exist_ok=True)
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TMP.mkdir(parents=True, exist_ok=True)
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model = WhisperModel(MODEL_NAME, compute_type=COMPUTE)
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def log(feed):
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with open(TRN / "_feed.log", "a", encoding="utf-8") as f:
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import orjson as _oj
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f.write(_oj.dumps(feed).decode()+"\n")
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def sanitize(name):
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return re.sub(r'[\\/:"*?<>|]+', ' ', name).strip()
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def yt_dlp(url, outdir):
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outtmpl = str(outdir / "%(uploader)s/%(upload_date)s - %(title)s.%(ext)s")
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cmd = [
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"yt-dlp", "-o", outtmpl,
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"-f", "bv*+ba/best",
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"-x", "--audio-format", "m4a",
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"--write-thumbnail",
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"--no-playlist", "--no-warnings", "--restrict-filenames",
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url
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]
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subprocess.check_call(cmd)
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media = list(outdir.rglob("*.[mM][pP]4")) + list(outdir.rglob("*.mkv")) + list(outdir.rglob("*.m4a")) + list(outdir.rglob("*.mp3"))
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return sorted(media, key=lambda p: p.stat().st_mtime)[-1:]
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def transcribe(media_path: Path):
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segments, info = model.transcribe(str(media_path), vad_filter=True, language="auto")
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title = media_path.stem
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base = TRN / title
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segs = []
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text_parts = []
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for s in segments:
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segs.append({"start": s.start, "end": s.end, "text": s.text})
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text_parts.append(s.text)
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txt = " ".join(text_parts).strip()
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import orjson as _oj
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open(base.with_suffix(".json"), "wb").write(_oj.dumps({"file": str(media_path), "language": info.language, "segments": segs}))
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open(base.with_suffix(".txt"), "w", encoding="utf-8").write(txt)
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def fmt_ts(t):
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h=int(t//3600); m=int((t%3600)//60); s=t-(h*3600+m*60)
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return f"{h:02}:{m:02}:{s:06.3f}".replace('.',',')
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with open(base.with_suffix(".srt"), "w", encoding="utf-8") as srt:
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for i,s in enumerate(segs,1):
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srt.write(f"{i}\n{fmt_ts(s['start'])} --> {fmt_ts(s['end'])}\n{s['text'].strip()}\n\n")
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with open(base.with_suffix(".vtt"), "w", encoding="utf-8") as vtt:
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vtt.write("WEBVTT\n\n")
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for s in segs:
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vtt.write(f"{fmt_ts(s['start']).replace(',', '.')} --> {fmt_ts(s['end']).replace(',', '.')} \n{s['text'].strip()}\n\n")
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return base
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def index_meili(json_path: Path):
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doc = json.loads(open(json_path, "r", encoding="utf-8").read())
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title = Path(doc["file"]).stem
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date = re.findall(r"\b(\d{8})\b", title)
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payload = {
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"id": title,
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"type": "podcast",
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"title": title,
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"date": date[0] if date else "",
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"source": str(Path(LIB, Path(doc["file"]).name)),
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"text": " ".join(s["text"] for s in doc.get("segments", [])),
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"segments": doc.get("segments", []),
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"meta": {"language": doc.get("language", "")}
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}
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r = requests.post(f"{MEILI_URL}/indexes/library/documents",
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headers={"Authorization": f"Bearer {MEILI_KEY}", "Content-Type":"application/json"},
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data=__import__('orjson').dumps(payload))
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r.raise_for_status()
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def handle_url(url: str):
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try:
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info = {"url": url, "status":"queued", "title":"", "uploader":"", "date":"", "path":""}
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log({**info, **{"status":"downloading"}})
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files = yt_dlp(url, TMP)
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for f in files:
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parts = f.relative_to(TMP).parts
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uploader = sanitize(parts[0]) if len(parts)>1 else "Unknown"
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dest_dir = LIB / uploader
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dest_dir.mkdir(parents=True, exist_ok=True)
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dest = dest_dir / sanitize(f.name)
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shutil.move(str(f), dest)
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import re as _re
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info.update({"title": dest.stem, "uploader": uploader,
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"date": _re.findall(r"\b(\d{8})\b", dest.stem)[0] if _re.findall(r"\b(\d{8})\b", dest.stem) else "",
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"path": str(dest)})
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log({**info, **{"status":"transcribing"}})
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base = transcribe(dest)
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index_meili(base.with_suffix(".json"))
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log({**info, **{"status":"done"}})
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except Exception as e:
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log({"url": url, "status":"error", "error": str(e)})
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raise
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