Spaces:
Runtime error
Runtime error
File size: 5,282 Bytes
cb92d2b |
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 |
from fastapi import FastAPI, WebSocket, HTTPException, WebSocketDisconnect
from fastapi.responses import StreamingResponse, JSONResponse
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles
import logging
import traceback
from config import Args
from user_queue import UserQueueDict
import uuid
import asyncio
import time
from PIL import Image
import io
def init_app(app: FastAPI, user_queue_map: UserQueueDict, args: Args, pipeline):
app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
print("Init app", app)
@app.websocket("/ws")
async def websocket_endpoint(websocket: WebSocket):
await websocket.accept()
if args.max_queue_size > 0 and len(user_queue_map) >= args.max_queue_size:
print("Server is full")
await websocket.send_json({"status": "error", "message": "Server is full"})
await websocket.close()
return
try:
uid = uuid.uuid4()
print(f"New user connected: {uid}")
await websocket.send_json(
{"status": "success", "message": "Connected", "userId": uid}
)
user_queue_map[uid] = {"queue": asyncio.Queue()}
await websocket.send_json(
{"status": "start", "message": "Start Streaming", "userId": uid}
)
await handle_websocket_data(websocket, uid)
except WebSocketDisconnect as e:
logging.error(f"WebSocket Error: {e}, {uid}")
traceback.print_exc()
finally:
print(f"User disconnected: {uid}")
queue_value = user_queue_map.pop(uid, None)
queue = queue_value.get("queue", None)
if queue:
while not queue.empty():
try:
queue.get_nowait()
except asyncio.QueueEmpty:
continue
@app.get("/queue_size")
async def get_queue_size():
queue_size = len(user_queue_map)
return JSONResponse({"queue_size": queue_size})
@app.get("/stream/{user_id}")
async def stream(user_id: uuid.UUID):
uid = user_id
try:
user_queue = user_queue_map[uid]
queue = user_queue["queue"]
async def generate():
last_prompt: str = None
while True:
data = await queue.get()
input_image = data["image"]
params = data["params"]
if input_image is None:
continue
image = pipeline.predict(
input_image,
params,
)
if image is None:
continue
frame_data = io.BytesIO()
image.save(frame_data, format="JPEG")
frame_data = frame_data.getvalue()
if frame_data is not None and len(frame_data) > 0:
yield b"--frame\r\nContent-Type: image/jpeg\r\n\r\n" + frame_data + b"\r\n"
await asyncio.sleep(1.0 / 120.0)
return StreamingResponse(
generate(), media_type="multipart/x-mixed-replace;boundary=frame"
)
except Exception as e:
logging.error(f"Streaming Error: {e}, {user_queue_map}")
traceback.print_exc()
return HTTPException(status_code=404, detail="User not found")
async def handle_websocket_data(websocket: WebSocket, user_id: uuid.UUID):
uid = user_id
user_queue = user_queue_map[uid]
queue = user_queue["queue"]
if not queue:
return HTTPException(status_code=404, detail="User not found")
last_time = time.time()
try:
while True:
data = await websocket.receive_bytes()
params = await websocket.receive_json()
params = pipeline.InputParams(**params)
pil_image = Image.open(io.BytesIO(data))
while not queue.empty():
try:
queue.get_nowait()
except asyncio.QueueEmpty:
continue
await queue.put({"image": pil_image, "params": params})
if args.timeout > 0 and time.time() - last_time > args.timeout:
await websocket.send_json(
{
"status": "timeout",
"message": "Your session has ended",
"userId": uid,
}
)
await websocket.close()
return
except Exception as e:
logging.error(f"Error: {e}")
traceback.print_exc()
# route to setup frontend
@app.get("/settings")
async def settings():
params = pipeline.InputParams()
return JSONResponse({"settings": params.dict()})
app.mount("/", StaticFiles(directory="public", html=True), name="public")
|