Spaces:
Running
on
A10G
Running
on
A10G
File size: 7,384 Bytes
51669fc |
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 |
from fastapi import FastAPI, WebSocket, HTTPException, WebSocketDisconnect
from fastapi.responses import StreamingResponse, JSONResponse
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles
from fastapi import Request
import markdown2
import logging
import uuid
import time
from types import SimpleNamespace
import asyncio
import os
import time
import mimetypes
import torch
from config import config, Args
from util import pil_to_frame, bytes_to_pil, is_firefox
from connection_manager import ConnectionManager, ServerFullException
from vid2vid import Pipeline
# fix mime error on windows
mimetypes.add_type("application/javascript", ".js")
THROTTLE = 1.0 / 120
# logging.basicConfig(level=logging.DEBUG)
class App:
def __init__(self, config: Args, pipeline):
self.args = config
self.pipeline = pipeline
self.app = FastAPI()
self.conn_manager = ConnectionManager()
self.init_app()
def init_app(self):
self.app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
@self.app.websocket("/api/ws/{user_id}")
async def websocket_endpoint(user_id: uuid.UUID, websocket: WebSocket):
try:
await self.conn_manager.connect(
user_id, websocket, self.args.max_queue_size
)
await handle_websocket_data(user_id)
except ServerFullException as e:
logging.error(f"Server Full: {e}")
finally:
await self.conn_manager.disconnect(user_id)
logging.info(f"User disconnected: {user_id}")
async def handle_websocket_data(user_id: uuid.UUID):
if not self.conn_manager.check_user(user_id):
return HTTPException(status_code=404, detail="User not found")
last_time = time.time()
try:
while True:
if (
self.args.timeout > 0
and time.time() - last_time > self.args.timeout
):
await self.conn_manager.send_json(
user_id,
{
"status": "timeout",
"message": "Your session has ended",
},
)
await self.conn_manager.disconnect(user_id)
return
data = await self.conn_manager.receive_json(user_id)
if data["status"] != "next_frame":
asyncio.sleep(THROTTLE)
continue
params = await self.conn_manager.receive_json(user_id)
params = pipeline.InputParams(**params)
info = pipeline.Info()
params = SimpleNamespace(**params.dict())
if info.input_mode == "image":
image_data = await self.conn_manager.receive_bytes(user_id)
if len(image_data) == 0:
await self.conn_manager.send_json(
user_id, {"status": "send_frame"}
)
await asyncio.sleep(THROTTLE)
continue
params.image = bytes_to_pil(image_data)
await self.conn_manager.update_data(user_id, params)
await self.conn_manager.send_json(user_id, {"status": "wait"})
except Exception as e:
logging.error(f"Websocket Error: {e}, {user_id} ")
await self.conn_manager.disconnect(user_id)
@self.app.get("/api/queue")
async def get_queue_size():
queue_size = self.conn_manager.get_user_count()
return JSONResponse({"queue_size": queue_size})
@self.app.get("/api/stream/{user_id}")
async def stream(user_id: uuid.UUID, request: Request):
try:
async def generate():
last_params = SimpleNamespace()
while True:
last_time = time.time()
params = await self.conn_manager.get_latest_data(user_id)
if not vars(params) or params.__dict__ == last_params.__dict__:
await self.conn_manager.send_json(
user_id, {"status": "send_frame"}
)
continue
last_params = params
image = pipeline.predict(params)
if image is None:
await self.conn_manager.send_json(
user_id, {"status": "send_frame"}
)
continue
frame = pil_to_frame(image)
yield frame
# https://bugs.chromium.org/p/chromium/issues/detail?id=1250396
if not is_firefox(request.headers["user-agent"]):
yield frame
await self.conn_manager.send_json(
user_id, {"status": "send_frame"}
)
if self.args.debug:
print(f"Time taken: {time.time() - last_time}")
return StreamingResponse(
generate(),
media_type="multipart/x-mixed-replace;boundary=frame",
headers={"Cache-Control": "no-cache"},
)
except Exception as e:
logging.error(f"Streaming Error: {e}, {user_id} ")
return HTTPException(status_code=404, detail="User not found")
# route to setup frontend
@self.app.get("/api/settings")
async def settings():
info_schema = pipeline.Info.schema()
info = pipeline.Info()
if info.page_content:
page_content = markdown2.markdown(info.page_content)
input_params = pipeline.InputParams.schema()
return JSONResponse(
{
"info": info_schema,
"input_params": input_params,
"max_queue_size": self.args.max_queue_size,
"page_content": page_content if info.page_content else "",
}
)
if not os.path.exists("./frontend/public"):
os.makedirs("./frontend/public")
self.app.mount(
"/", StaticFiles(directory="./frontend/public", html=True), name="public"
)
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
torch_dtype = torch.float16
pipeline = Pipeline(config, device, torch_dtype)
app = App(config, pipeline).app
if __name__ == "__main__":
import uvicorn
uvicorn.run(
"main:app",
host=config.host,
port=config.port,
reload=config.reload,
ssl_certfile=config.ssl_certfile,
ssl_keyfile=config.ssl_keyfile,
)
|