mirror of
https://github.com/JefferyHcool/BiliNote.git
synced 2026-05-11 09:59:46 +08:00
250 lines
8.6 KiB
Python
250 lines
8.6 KiB
Python
import json
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import logging
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import time
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from typing import Optional, List, Dict, Union
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import requests
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from app.decorators.timeit import timeit
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from app.models.transcriber_model import TranscriptSegment, TranscriptResult
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from app.transcriber.base import Transcriber
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from app.utils.logger import get_logger
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from events import transcription_finished
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__version__ = "0.0.3"
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API_BASE_URL = "https://member.bilibili.com/x/bcut/rubick-interface"
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# 申请上传
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API_REQ_UPLOAD = API_BASE_URL + "/resource/create"
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# 提交上传
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API_COMMIT_UPLOAD = API_BASE_URL + "/resource/create/complete"
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# 创建任务
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API_CREATE_TASK = API_BASE_URL + "/task"
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# 查询结果
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API_QUERY_RESULT = API_BASE_URL + "/task/result"
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logger = get_logger(__name__)
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class BcutTranscriber(Transcriber):
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"""必剪 语音识别接口"""
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headers = {
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'User-Agent': 'Bilibili/1.0.0 (https://www.bilibili.com)',
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'Content-Type': 'application/json'
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}
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def __init__(self):
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self.session = requests.Session()
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self.task_id = None
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self.__etags = []
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self.__in_boss_key: Optional[str] = None
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self.__resource_id: Optional[str] = None
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self.__upload_id: Optional[str] = None
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self.__upload_urls: List[str] = []
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self.__per_size: Optional[int] = None
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self.__clips: Optional[int] = None
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self.__etags: List[str] = []
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self.__download_url: Optional[str] = None
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self.task_id: Optional[str] = None
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def _load_file(self, file_path: str) -> bytes:
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"""读取文件内容"""
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with open(file_path, 'rb') as f:
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return f.read()
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def _upload(self, file_path: str) -> None:
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"""申请上传"""
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file_binary = self._load_file(file_path)
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if not file_binary:
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raise ValueError("无法读取文件数据")
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payload = json.dumps({
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"type": 2,
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"name": "audio.mp3",
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"size": len(file_binary),
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"ResourceFileType": "mp3",
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"model_id": "8",
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})
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resp = self.session.post(
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API_REQ_UPLOAD,
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data=payload,
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headers=self.headers
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)
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resp.raise_for_status()
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resp = resp.json()
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resp_data = resp["data"]
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self.__in_boss_key = resp_data["in_boss_key"]
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self.__resource_id = resp_data["resource_id"]
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self.__upload_id = resp_data["upload_id"]
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self.__upload_urls = resp_data["upload_urls"]
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self.__per_size = resp_data["per_size"]
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self.__clips = len(resp_data["upload_urls"])
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logger.info(
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f"申请上传成功, 总计大小{resp_data['size'] // 1024}KB, {self.__clips}分片, 分片大小{resp_data['per_size'] // 1024}KB: {self.__in_boss_key}"
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)
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self.__upload_part(file_binary)
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self.__commit_upload()
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def __upload_part(self, file_binary: bytes) -> None:
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"""上传音频数据"""
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for clip in range(self.__clips):
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start_range = clip * self.__per_size
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end_range = min((clip + 1) * self.__per_size, len(file_binary))
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logger.info(f"开始上传分片{clip}: {start_range}-{end_range}")
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resp = self.session.put(
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self.__upload_urls[clip],
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data=file_binary[start_range:end_range],
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headers={'Content-Type': 'application/octet-stream'}
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)
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resp.raise_for_status()
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etag = resp.headers.get("Etag", "").strip('"')
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self.__etags.append(etag)
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logger.info(f"分片{clip}上传成功: {etag}")
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def __commit_upload(self) -> None:
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"""提交上传数据"""
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data = json.dumps({
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"InBossKey": self.__in_boss_key,
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"ResourceId": self.__resource_id,
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"Etags": ",".join(self.__etags),
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"UploadId": self.__upload_id,
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"model_id": "8",
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})
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resp = self.session.post(
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API_COMMIT_UPLOAD,
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data=data,
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headers=self.headers
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)
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resp.raise_for_status()
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resp = resp.json()
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if resp.get("code") != 0:
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error_msg = f"上传提交失败: {resp.get('message', '未知错误')}"
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logger.error(error_msg)
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raise Exception(error_msg)
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self.__download_url = resp["data"]["download_url"]
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logger.info(f"提交成功，下载链接: {self.__download_url}")
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def _create_task(self) -> str:
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"""开始创建转换任务"""
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resp = self.session.post(
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API_CREATE_TASK, json={"resource": self.__download_url, "model_id": "8"}, headers=self.headers
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)
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resp.raise_for_status()
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resp = resp.json()
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if resp.get("code") != 0:
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error_msg = f"创建任务失败: {resp.get('message', '未知错误')}"
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logger.error(error_msg)
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raise Exception(error_msg)
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self.task_id = resp["data"]["task_id"]
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logger.info(f"任务已创建: {self.task_id}")
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return self.task_id
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def _query_result(self) -> dict:
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"""查询转换结果"""
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resp = self.session.get(
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API_QUERY_RESULT,
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params={"model_id": 7, "task_id": self.task_id},
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headers=self.headers
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)
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resp.raise_for_status()
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resp = resp.json()
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if resp.get("code") != 0:
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error_msg = f"查询结果失败: {resp.get('message', '未知错误')}"
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logger.error(error_msg)
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raise Exception(error_msg)
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return resp["data"]
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@timeit
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def transcript(self, file_path: str) -> TranscriptResult:
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"""执行识别过程，符合 Transcriber 接口"""
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try:
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logger.info(f"开始处理文件: {file_path}")
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# 上传文件
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logger.info("正在上传文件...")
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self._upload(file_path)
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# 创建任务
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logger.info("提交转录任务...")
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self._create_task()
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# 轮询检查任务状态
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logger.info("等待转录结果...")
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task_resp = None
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max_retries = 500
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for i in range(max_retries):
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task_resp = self._query_result()
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if task_resp["state"] == 4: # 完成状态
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break
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elif task_resp["state"] == 3: # 失败状态
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error_msg = f"B站ASR任务失败，状态码: {task_resp['state']}"
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logger.error(error_msg)
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raise Exception(error_msg)
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# 每隔一段时间打印进度
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if i % 10 == 0:
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logger.info(f"转录进行中... {i}/{max_retries}")
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time.sleep(1)
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if not task_resp or task_resp["state"] != 4:
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error_msg = f"B站ASR任务未能完成，状态: {task_resp.get('state') if task_resp else 'Unknown'}"
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logger.error(error_msg)
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raise Exception(error_msg)
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# 解析结果
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logger.info("转录成功，处理结果...")
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result_json = json.loads(task_resp["result"])
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# 提取分段数据
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segments = []
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full_text = ""
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for u in result_json.get("utterances", []):
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text = u.get("transcript", "").strip()
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# B站ASR返回的时间戳是毫秒，需要转换为秒
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start_time = float(u.get("start_time", 0)) / 1000.0
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end_time = float(u.get("end_time", 0)) / 1000.0
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full_text += text + " "
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segments.append(TranscriptSegment(
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start=start_time,
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end=end_time,
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text=text
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))
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# 创建结果对象
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result = TranscriptResult(
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language=result_json.get("language", "zh"),
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full_text=full_text.strip(),
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segments=segments,
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raw=result_json
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)
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# 触发完成事件
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self.on_finish(file_path, result)
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return result
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except Exception as e:
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logger.error(f"B站ASR处理失败: {str(e)}")
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raise
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def on_finish(self, video_path: str, result: TranscriptResult) -> None:
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"""转录完成的回调"""
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logger.info(f"B站ASR转写完成: {video_path}")
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transcription_finished.send({
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"file_path": video_path,
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}) |