291 lines
10 KiB
Python
291 lines
10 KiB
Python
import os
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import uuid
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from typing import Optional
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from fastapi import FastAPI, HTTPException, Query
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from youtube_transcript_api import YouTubeTranscriptApi
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from youtube_transcript_api.formatters import SRTFormatter
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from youtube_transcript_api._errors import TranscriptsDisabled, NoTranscriptFound
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from yt_dlp import YoutubeDL
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from utils import extract_video_id, sanitize_title
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app = FastAPI(
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title="YouTube Transcript, Download and Metadata API",
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version="1.0.0"
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)
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@app.get("/get-transcript")
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def get_transcript(
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url: Optional[str] = Query(None, description="URL completa do vídeo"),
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videoId: Optional[str] = Query(None, alias="videoId", description="ID do vídeo no YouTube")
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):
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if not url and not videoId:
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raise HTTPException(status_code=400, detail="Informe 'url' ou 'videoId'")
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if url:
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try:
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video_id = extract_video_id(url)
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except ValueError as e:
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raise HTTPException(status_code=400, detail=str(e))
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else:
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video_id = videoId
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try:
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ytt_api = YouTubeTranscriptApi()
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result = ytt_api.fetch(video_id, languages=['pt'])
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formatter = SRTFormatter()
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if not result:
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raise NoTranscriptFound("Nenhuma transcrição encontrada para este vídeo")
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except TranscriptsDisabled:
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raise HTTPException(status_code=404, detail="Transcrição desativada para este vídeo")
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except NoTranscriptFound:
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raise HTTPException(status_code=404, detail="Nenhuma transcrição encontrada")
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except Exception as e:
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raise HTTPException(status_code=500, detail=f"Erro ao obter transcrição: {e}")
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return {
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"video_id": video_id,
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"transcript": formatter.format_transcript(result),
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}
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@app.get("/get-video-metadata")
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def get_video_metadata(
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url: Optional[str] = Query(None, description="URL completa do vídeo"),
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videoId: Optional[str] = Query(None, alias="videoId", description="ID do vídeo no YouTube")
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):
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if not url and not videoId:
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raise HTTPException(status_code=400, detail="Informe 'url' ou 'videoId'")
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if url:
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target = url
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else:
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target = f"https://www.youtube.com/watch?v={videoId}"
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ydl_opts = {
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'quiet': True,
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'no_warnings': True,
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'skip_download': True,
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'nocheckcertificate': True,
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'ignoreerrors': True,
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'no_color': True,
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'extract_flat': 'in_playlist',
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'force_generic_extractor': True,
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'format': 'best[ext=mp4]/best[ext=webm]/best',
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'allow_unplayable_formats': True,
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'socket_timeout': 8,
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'retries': 0,
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}
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try:
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with YoutubeDL(ydl_opts) as ydl:
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info = ydl.extract_info(target, download=False, process=False)
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if not info or 'title' not in info:
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info = ydl.extract_info(target, download=False)
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if not info or 'title' not in info:
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simple_ydl_opts = {
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'quiet': True,
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'skip_download': True,
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'extract_flat': True,
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'force_generic_extractor': True,
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}
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with YoutubeDL(simple_ydl_opts) as simple_ydl:
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info = simple_ydl.extract_info(target, download=False)
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if not info:
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raise Exception("Não foi possível extrair as informações do vídeo")
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if isinstance(info, dict):
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if 'title' not in info and 'url' in info:
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info = ydl.extract_info(info['url'], download=False)
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if 'title' not in info:
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info['title'] = f"Vídeo {videoId or 'desconhecido'}"
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except Exception as e:
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error_msg = str(e).replace('\n', ' ').strip()
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try:
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import requests
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from bs4 import BeautifulSoup
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video_id = videoId or (url.split('v=')[-1].split('&')[0] if 'v=' in url else '')
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if video_id:
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response = requests.get(f'https://www.youtube.com/watch?v={video_id}', timeout=10)
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soup = BeautifulSoup(response.text, 'html.parser')
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title = soup.find('title').text.replace(' - YouTube', '').strip()
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if title and title != 'YouTube':
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return {
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'id': video_id,
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'title': title,
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'url': f'https://www.youtube.com/watch?v={video_id}',
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'thumbnail': f'https://img.youtube.com/vi/{video_id}/hqdefault.jpg',
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'error': f'Informações limitadas: {error_msg}'
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}
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except Exception as fallback_error:
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pass
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raise HTTPException(
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status_code=500,
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detail=f"Erro ao processar o vídeo: {error_msg}"
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)
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return info
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@app.get("/download-video")
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def download_video(
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url: Optional[str] = Query(None, description="URL completa do vídeo"),
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videoId: Optional[str] = Query(None, alias="videoId", description="ID do vídeo no YouTube"),
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qualidade: str = Query("high", description="Qualidade do vídeo: low, medium, high")
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):
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if not url and not videoId:
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raise HTTPException(status_code=400, detail="Informe 'url' ou 'videoId'")
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if url:
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target = url
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try:
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video_id = extract_video_id(url)
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except ValueError as e:
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raise HTTPException(status_code=400, detail=str(e))
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else:
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target = f"https://www.youtube.com/watch?v={videoId}"
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video_id = videoId
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quality_map = {
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"low": "bestvideo[height<=480]+bestaudio/best[height<=480]/bestvideo[height<=480]/best[height<=480]/best",
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"medium": "bestvideo[height<=720]+bestaudio/best[height<=720]/bestvideo[height<=720]/best[height<=720]/best",
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"high": "bestvideo[height>=1080]+bestaudio/bestvideo+bestaudio/best"
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}
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qualidade = qualidade.lower()
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if qualidade not in quality_map:
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raise HTTPException(status_code=400, detail="Qualidade deve ser: low, medium ou high")
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videos_dir = "/app/videos"
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os.makedirs(videos_dir, exist_ok=True)
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unique_id = str(uuid.uuid4())
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output_template = os.path.join(videos_dir, f"{unique_id}.%(ext)s")
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metadata_opts = {
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"quiet": True,
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"skip_download": True,
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"nocheckcertificate": True,
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}
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download_opts = {
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"format": quality_map[qualidade],
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"outtmpl": output_template,
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"quiet": True,
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"noplaylist": True,
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"merge_output_format": "mp4",
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"nocheckcertificate": True,
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}
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try:
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with YoutubeDL(metadata_opts) as ydl:
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metadata = ydl.extract_info(target, download=False)
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if not metadata or 'title' not in metadata:
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raise Exception("Não foi possível extrair metadados do vídeo")
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title = metadata.get("title", unique_id)
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clean_title = sanitize_title(title)
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filename = f"{clean_title}_{qualidade}.mp4"
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final_path = os.path.join(videos_dir, filename)
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# Verifica cache
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if os.path.exists(final_path):
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return {
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"videoId": video_id,
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"filename": filename,
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"cached": True
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}
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with YoutubeDL(download_opts) as ydl:
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result = ydl.extract_info(target, download=True)
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if not result:
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raise HTTPException(status_code=500, detail="Erro desconhecido no download")
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if "requested_downloads" in result and len(result["requested_downloads"]) > 0:
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real_file_path = result["requested_downloads"][0]["filepath"]
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elif "filepath" in result:
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real_file_path = result["filepath"]
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else:
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real_file_path = output_template.replace("%(ext)s", "mp4")
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if os.path.exists(real_file_path):
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os.rename(real_file_path, final_path)
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else:
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raise HTTPException(status_code=500, detail="Arquivo de download não encontrado")
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return {
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"videoId": video_id,
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"filename": filename,
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"cached": False
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}
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except HTTPException:
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raise
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except Exception as e:
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raise HTTPException(status_code=500, detail=f"Erro ao baixar vídeo: {e}")
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@app.get("/search")
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def search_youtube_yt_dlp(
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q: str = Query(..., description="Termo de busca"),
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max_results: int = Query(5, ge=1, le=10, description="Número de resultados (máx 10)")
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):
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ydl_opts = {
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"quiet": True,
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"extract_flat": "in_playlist",
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"skip_download": True,
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"nocheckcertificate": True,
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"socket_timeout": 8,
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"retries": 0,
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}
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search_query = f"ytsearch{max_results}:{q}"
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try:
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with YoutubeDL(ydl_opts) as ydl:
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search_result = ydl.extract_info(search_query, download=False)
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entries = search_result.get("entries", [])[:max_results]
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results = []
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for item in entries:
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results.append({
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"videoId": item.get("id"),
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"title": item.get("title"),
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"duration": item.get("duration"),
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"url": item.get("webpage_url"),
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"channel": item.get("uploader"),
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"thumbnail": item.get("thumbnail"),
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})
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return {"results": results}
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except Exception as e:
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raise HTTPException(status_code=500, detail=f"Erro ao buscar vídeos: {e}")
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@app.get("/list-formats")
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def list_formats(url: str):
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opts = {
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"quiet": True,
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"skip_download": True,
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"nocheckcertificate": True,
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"no_check_certificates": True,
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}
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try:
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with YoutubeDL(opts) as ydl:
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info = ydl.extract_info(url, download=False)
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fmts = info.get("formats") or []
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brief = [{
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"id": f.get("format_id"),
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"ext": f.get("ext"),
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"height": f.get("height"),
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"fps": f.get("fps"),
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"vcodec": f.get("vcodec"),
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"acodec": f.get("acodec"),
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"tbr": f.get("tbr"),
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} for f in fmts]
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return {"total": len(brief), "formats": brief[:60]}
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except Exception as e:
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raise HTTPException(status_code=500, detail=f"Erro ao listar formatos: {e}")
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