feat(voice): 提取视频配音接口 + 素材来源标识 #1654

Merged
xiaoxia merged 2 commits from feat/extract-video-voice-and-source-label into develop 2026-09-03 18:34:04 +08:00
2 changed files with 263 additions and 3 deletions
+260 -2
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@@ -6,12 +6,26 @@
from __future__ import annotations
import logging
import shutil
import subprocess
import tempfile
import time
from pathlib import Path
from typing import Literal, Optional
from uuid import uuid4
from app.api.routes._helpers import get_user_plan
from app.auth import AuthenticatedUser, get_current_user
from app.dependencies import get_audio_url_signer, get_cosyvoice_service, get_db_session, get_user_repository
from app.core.storage import get_storage_service
from app.dependencies import (
get_asset_library_repository,
get_asset_repository,
get_audio_url_signer,
get_cosyvoice_service,
get_db_session,
get_project_repository,
get_user_repository,
)
from app.schemas.voice import (
PresetVoiceItemResponse,
PresetVoiceListResponse,
@@ -24,7 +38,7 @@ from app.schemas.voice_library import (
UpdateVoiceLibraryRequest,
VoiceLibraryItemResponse,
)
from fastapi import APIRouter, Depends, HTTPException, Query, Response, status
from fastapi import APIRouter, Depends, File, Form, HTTPException, Query, Response, UploadFile, status
from sqlalchemy.orm import Session
from packages.adapters.sqlalchemy_impl.voice_clone_profile_repository import SQLAlchemyVoiceCloneProfileRepository
@@ -40,8 +54,12 @@ from packages.application.voice_library.use_cases import (
QuotaExceededError,
UpdateVoiceLibraryUseCase,
)
from packages.domain import Asset, AssetStatus
from packages.domain.classification import AssetLibraryKind, ClassificationStatus
from packages.domain.entities import AssetLibrary
from packages.domain.preset_voices import PRESET_VOICES, get_preset_voice_by_id
from packages.ports.user_repository import UserRepository
from packages.shared.storage import SharedStorageService
router = APIRouter()
logger = logging.getLogger(__name__)
@@ -507,3 +525,243 @@ def delete_voice(
if not deleted:
raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Voice not found")
return
# ── 提取视频配音 ─────────────────────────────────────────────────────
# 支持的视频格式
EXTRACT_VIDEO_MIMES = frozenset({"video/mp4", "video/quicktime", "video/webm", "video/x-msvideo"})
MAX_EXTRACT_SIZE = 500 * 1024 * 1024 # 500MB
@router.post(
"/extract-voice",
status_code=status.HTTP_201_CREATED,
)
def extract_voice_from_video(
file: UploadFile = File(...),
project_id: str = Form(...),
authenticated_user: AuthenticatedUser = Depends(get_current_user),
project_repository=Depends(get_project_repository),
asset_library_repository=Depends(get_asset_library_repository),
asset_repository=Depends(get_asset_repository),
storage_service: SharedStorageService = Depends(get_storage_service),
sign_url=Depends(get_audio_url_signer),
):
"""从上传的视频中提取人声配音。
流程:
1. 接收视频文件(mp4/mov/webm
2. ffmpeg 提取音频 + 降噪 + 编码为 mp3
3. 上传到 OSS,创建 Asset 记录到配音素材库
4. 返回素材信息(时长、文件大小、URL)
"""
user_id = authenticated_user.user.id
# 校验文件类型
content_type = file.content_type or ""
if content_type and content_type not in EXTRACT_VIDEO_MIMES:
# 兜底:按扩展名判断
ext = (file.filename or "").rsplit(".", 1)[-1].lower()
ext_to_mime = {"mp4": "video/mp4", "mov": "video/quicktime", "webm": "video/webm", "avi": "video/x-msvideo"}
if ext not in ext_to_mime:
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail="仅支持 mp4/mov/webm/avi 格式的视频文件",
)
content_type = ext_to_mime[ext]
# 找到(或自动创建)用户 voice 素材库(复用 TTS 的逻辑)
library = _find_or_create_voice_library_for_extract(
user_id=user_id,
project_repository=project_repository,
asset_library_repository=asset_library_repository,
)
tmp_dir = None
try:
tmp_dir = Path(tempfile.mkdtemp(prefix="voice_extract_"))
video_path = tmp_dir / f"input_{uuid4().hex[:8]}_{file.filename or 'video.mp4'}"
audio_path = tmp_dir / f"output_{uuid4().hex[:8]}.mp3"
# 保存上传的视频到临时文件
with open(video_path, "wb") as f:
total = 0
while chunk := file.file.read(1024 * 1024): # 1MB chunks
total += len(chunk)
if total > MAX_EXTRACT_SIZE:
raise HTTPException(
status_code=status.HTTP_413_REQUEST_ENTITY_TOO_LARGE,
detail="视频文件过大,最大支持 500MB",
)
f.write(chunk)
if video_path.stat().st_size == 0:
raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="视频文件为空")
# ffmpeg: 提取音频 + 降噪 + 编码 mp3
# 滤镜链:highpass(去低频噪声) → afftdn(FFT降噪) → lowpass(去高频噪声)
ffmpeg_cmd = [
"ffmpeg",
"-y",
"-i",
str(video_path),
"-vn", # 不要视频
"-af",
"highpass=f=80,afftdn=nf=-25:tn=1,lowpass=f=8000",
"-acodec",
"libmp3lame",
"-ab",
"192k",
"-ar",
"44100",
"-ac",
"1", # 单声道(人声足够)
str(audio_path),
]
result = subprocess.run(
ffmpeg_cmd,
capture_output=True,
timeout=300, # 5 分钟超时
)
if result.returncode != 0:
stderr_text = result.stderr.decode("utf-8", errors="replace")[-500:]
logger.error("ffmpeg 提取配音失败: %s", stderr_text)
raise HTTPException(
status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
detail="视频音频提取失败,可能该视频没有音轨或格式不支持",
)
if not audio_path.exists() or audio_path.stat().st_size == 0:
raise HTTPException(
status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
detail="音频提取结果为空",
)
# 获取音频时长
duration = _get_audio_duration(audio_path)
file_size = audio_path.stat().st_size
# 上传到 OSS
audio_ext = "mp3"
storage_key = f"uploads/voice/extracted/{uuid4().hex}.{audio_ext}"
storage_service.upload_file(audio_path, storage_key, content_type="audio/mpeg")
# 创建 Asset 记录
original_name = (file.filename or "video").rsplit(".", 1)[0]
asset_name = f"{original_name}-配音"
asset = Asset.create(
project_id=library.project_id,
library_id=library.id,
name=asset_name,
storage_key=storage_key,
mime_type="audio/mpeg",
metadata={
"source": "video_extract",
"original_video": file.filename or "unknown",
},
file_size=file_size,
duration=duration,
status=AssetStatus.READY,
classification_status=ClassificationStatus.PENDING,
uploaded_by_user_id=user_id,
)
asset = asset_repository.create(asset)
return {
"id": asset.id,
"name": asset.name,
"audio_url": sign_url(storage_key),
"duration": duration,
"file_size": file_size,
"status": "completed",
"source": "video_extract",
}
except HTTPException:
raise
except subprocess.TimeoutExpired:
raise HTTPException(
status_code=status.HTTP_504_GATEWAY_TIMEOUT,
detail="视频处理超时,请尝试较短的视频",
)
except Exception as e:
logger.exception("提取视频配音失败: %s", e)
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail="提取配音失败,请稍后重试",
)
finally:
# 清理临时文件
if tmp_dir and Path(tmp_dir).exists():
shutil.rmtree(tmp_dir, ignore_errors=True)
def _find_or_create_voice_library_for_extract(*, user_id, project_repository, asset_library_repository):
"""为用户找到或创建 voice 素材库(与 TTS 保存逻辑一致)。"""
projects = project_repository.find_accessible_projects(user_id)
if not projects:
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail="没有可用的项目,请先创建项目",
)
for project in projects:
for lib in asset_library_repository.find_by_project(project.id):
kind = lib.kind.value if hasattr(lib.kind, "value") else lib.kind
if kind == AssetLibraryKind.VOICE.value:
return lib
# 自动创建
from sqlalchemy.exc import IntegrityError
project = projects[0]
library = AssetLibrary.create(
project_id=project.id,
name="配音素材库",
kind=AssetLibraryKind.VOICE,
)
try:
return asset_library_repository.create(library)
except IntegrityError:
session = getattr(asset_library_repository, "session", None)
if session is not None:
try:
session.rollback()
except Exception:
pass
for lib in asset_library_repository.find_by_project(project.id):
kind = lib.kind.value if hasattr(lib.kind, "value") else lib.kind
if kind == AssetLibraryKind.VOICE.value:
return lib
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail="配音素材库创建失败",
)
def _get_audio_duration(audio_path: Path) -> float:
"""用 ffprobe 获取音频时长(秒)。"""
try:
result = subprocess.run(
[
"ffprobe",
"-v",
"quiet",
"-show_entries",
"format=duration",
"-of",
"csv=p=0",
str(audio_path),
],
capture_output=True,
timeout=10,
)
if result.returncode == 0 and result.stdout.strip():
return float(result.stdout.strip())
except (ValueError, subprocess.TimeoutExpired):
pass
return 0.0
+3 -1
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@@ -630,7 +630,7 @@ def ingest_asset(job_id: str) -> dict:
name=filename,
storage_key=job.storage_key,
mime_type=mime_type,
metadata={"ingest_error": error_reason},
metadata={"source": "upload", "ingest_error": error_reason},
file_size=int(metadata.get("size_bytes", 0)),
duration=float(metadata.get("duration", 0)),
width=int(metadata.get("width", 0)),
@@ -666,6 +666,7 @@ def ingest_asset(job_id: str) -> dict:
if existing_asset is None:
# 兜底:如果 API 端没有预先创建 Asset(旧版本兼容),则创建新记录
logger.info("No pre-created asset found for storage_key=%s, creating new", job.storage_key)
metadata["source"] = "upload"
asset = Asset.create(
project_id=job.project_id,
library_id=job.library_id,
@@ -687,6 +688,7 @@ def ingest_asset(job_id: str) -> dict:
# 更新已有的 Asset 记录,补充元数据并将状态改为 READY
asset = existing_asset
asset.mime_type = mime_type
metadata["source"] = "upload"
asset.metadata = metadata
asset.file_size = int(metadata.get("size_bytes", 0))
asset.duration = float(metadata.get("duration", 0))