fastapi视频上传和播放
时间: 2024-11-20 12:23:30 浏览: 81
FastAPI是一个轻量级的Web框架,用于构建现代高性能API。如果你想在FastAPI应用中实现视频上传和播放功能,你可以按照以下步骤操作:
1. **安装依赖**:
首先,你需要安装`FastAPI`、`Uvicorn`(服务器)、`starlette.responses`(处理文件响应)和可能需要的文件存储库(如`FastAPI Upload`或AWS S3等)。运行以下命令安装:
```
pip install fastapi uvicorn starlette.responses[files]
```
2. **设置路由**:
创建一个处理文件上传的POST路由,例如使用`FastAPI Upload`插件,可以创建一个接收multipart/form-data类型的请求来上传视频:
```python
from fastapi import FastAPI, File, UploadFile
from starlette.responses import Response
app = FastAPI()
@app.post("/upload/")
async def upload_video(file: UploadFile):
filename = file.filename
# 将文件保存到本地或云存储
with open("path/to/save", "wb") as buffer:
await file.readinto(buffer)
return {"filename": filename, "status": "success"}
```
3. **视频播放路由**:
对于视频播放,你可以提供一个GET路由,通过文件路径返回一个包含MIME类型为video/mp4或其他适合的格式的响应:
```python
@app.get("/play/{filename}")
async def play_video(filename: str):
try:
video_path = f"path/to/save/{filename}"
response = Response(open(video_path, "rb"), media_type="video/mp4")
response.headers["Content-Disposition"] = f"attachment; filename={filename}"
except FileNotFoundError:
response = {"error": "Video not found"}
return response
```
4. **部署**:
使用`Uvicorn`启动应用:
```
uvicorn main:app --reload
```
**注意事项**:
- 安全方面:确保对上传的视频进行验证,避免恶意文件上传。
- 性能优化:如果视频文件很大,考虑使用流式处理或CDN分发。
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