Spaces:
Sleeping
Sleeping
File size: 7,199 Bytes
be81231 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 |
"""
FastAPI backend with WebSocket support for real-time video processing
"""
from fastapi import FastAPI, WebSocket, WebSocketDisconnect, UploadFile, File, HTTPException, BackgroundTasks
from fastapi.responses import FileResponse, StreamingResponse
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles
import uvicorn
import os
import uuid
import json
import asyncio
from pathlib import Path
from typing import Dict, Optional
import tempfile
import shutil
from async_processor import async_processor
app = FastAPI(title="VR180 Converter API", version="2.0.0")
# CORS middleware
app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
# Create necessary directories
os.makedirs("uploads", exist_ok=True)
os.makedirs("outputs", exist_ok=True)
os.makedirs("thumbnails", exist_ok=True)
os.makedirs("static", exist_ok=True)
# Mount static files
app.mount("/static", StaticFiles(directory="static"), name="static")
@app.get("/")
async def root():
"""Health check endpoint"""
return {"message": "VR180 Converter API is running", "version": "2.0.0"}
@app.get("/api/health")
async def health_check():
"""Detailed health check"""
return {
"status": "healthy",
"message": "VR180 Converter API is running",
"version": "2.0.0",
"active_jobs": len(async_processor.processing_jobs),
"active_connections": len(async_processor.active_connections)
}
@app.post("/api/upload")
async def upload_video(file: UploadFile = File(...)):
"""Upload video file and return metadata"""
try:
# Validate file type
allowed_extensions = {'.mp4', '.avi', '.mov', '.mkv', '.webm'}
file_extension = Path(file.filename).suffix.lower()
if file_extension not in allowed_extensions:
raise HTTPException(status_code=400, detail="Invalid file type")
# Generate unique filename
file_id = str(uuid.uuid4())
filename = f"{file_id}_{file.filename}"
filepath = os.path.join("uploads", filename)
# Save file
with open(filepath, "wb") as buffer:
shutil.copyfileobj(file.file, buffer)
# Get video info
video_info = async_processor.get_video_info(filepath)
# Generate thumbnail
thumbnail_path = async_processor.generate_thumbnail(filepath)
return {
"success": True,
"file_id": file_id,
"filename": filename,
"original_name": file.filename,
"video_info": video_info,
"thumbnail": thumbnail_path,
"file_size": os.path.getsize(filepath)
}
except Exception as e:
raise HTTPException(status_code=500, detail=str(e))
@app.post("/api/process/{file_id}")
async def start_processing(file_id: str, background_tasks: BackgroundTasks):
"""Start video processing job"""
try:
# Find the uploaded file
upload_dir = Path("uploads")
files = list(upload_dir.glob(f"{file_id}_*"))
if not files:
raise HTTPException(status_code=404, detail="File not found")
input_path = str(files[0])
# Generate output path
output_filename = f"vr180_{Path(input_path).name}"
output_path = os.path.join("outputs", output_filename)
# Start processing in background
job_id = str(uuid.uuid4())
background_tasks.add_task(
async_processor.process_video_async,
input_path,
output_path,
job_id
)
return {
"success": True,
"job_id": job_id,
"message": "Processing started",
"websocket_url": f"/ws/{job_id}"
}
except Exception as e:
raise HTTPException(status_code=500, detail=str(e))
@app.websocket("/ws/{job_id}")
async def websocket_endpoint(websocket: WebSocket, job_id: str):
"""WebSocket endpoint for real-time updates"""
await async_processor.connect(websocket, job_id)
try:
while True:
# Keep connection alive
data = await websocket.receive_text()
message = json.loads(data)
if message.get("type") == "ping":
await websocket.send_text(json.dumps({"type": "pong"}))
except WebSocketDisconnect:
async_processor.disconnect(job_id)
@app.get("/api/status/{job_id}")
async def get_job_status(job_id: str):
"""Get processing job status"""
status = async_processor.get_job_status(job_id)
if not status:
raise HTTPException(status_code=404, detail="Job not found")
return status
@app.get("/api/download/{filename}")
async def download_video(filename: str):
"""Download processed video"""
filepath = os.path.join("outputs", filename)
if not os.path.exists(filepath):
raise HTTPException(status_code=404, detail="File not found")
return FileResponse(
filepath,
media_type="video/mp4",
filename=filename,
headers={"Content-Disposition": f"attachment; filename={filename}"}
)
@app.get("/api/thumbnail/{filename}")
async def get_thumbnail(filename: str):
"""Get video thumbnail"""
thumb_path = os.path.join("thumbnails", filename)
if not os.path.exists(thumb_path):
raise HTTPException(status_code=404, detail="Thumbnail not found")
return FileResponse(thumb_path, media_type="image/jpeg")
@app.delete("/api/cleanup/{file_id}")
async def cleanup_files(file_id: str):
"""Clean up uploaded and processed files"""
try:
# Remove uploaded file
upload_dir = Path("uploads")
upload_files = list(upload_dir.glob(f"{file_id}_*"))
for file in upload_files:
file.unlink()
# Remove output file
output_dir = Path("outputs")
output_files = list(output_dir.glob(f"vr180_{file_id}_*"))
for file in output_files:
file.unlink()
# Remove thumbnail
thumb_dir = Path("thumbnails")
thumb_files = list(thumb_dir.glob(f"{file_id}_*"))
for file in thumb_files:
file.unlink()
return {"success": True, "message": "Files cleaned up"}
except Exception as e:
raise HTTPException(status_code=500, detail=str(e))
@app.get("/api/jobs")
async def list_jobs():
"""List all processing jobs"""
return {
"jobs": async_processor.processing_jobs,
"active_connections": len(async_processor.active_connections)
}
if __name__ == "__main__":
uvicorn.run(
"fastapi_app:app",
host="0.0.0.0",
port=8000,
reload=True,
workers=1 # Single worker for shared state
)
|