89 lines
1.9 KiB
Python
89 lines
1.9 KiB
Python
import threading
|
|
|
|
import modal
|
|
from contextlib import asynccontextmanager
|
|
from fastapi import FastAPI
|
|
from fastapi.responses import FileResponse
|
|
from fastapi.staticfiles import StaticFiles
|
|
from audiocraft.data.audio import audio_write
|
|
|
|
# the index of the current audio track from 0 to 9
|
|
current_index = -1
|
|
# the timer that periodically advances the current audio track
|
|
t = None
|
|
|
|
prompts = [
|
|
"gentle, calming lo-fi beats that helps with studying and focusing",
|
|
"calm, piano lo-fi beats to help with studying and focusing",
|
|
"gentle lo-fi hip-hop to relax to",
|
|
"gentle, quiet synthwave lo-fi beats",
|
|
"morning lo-fi beats",
|
|
]
|
|
|
|
|
|
model = modal.Cls.lookup("infinifi", "Model")
|
|
|
|
|
|
@asynccontextmanager
|
|
async def lifespan(app: FastAPI):
|
|
advance()
|
|
yield
|
|
if t:
|
|
t.cancel()
|
|
|
|
|
|
def generate_new_audio():
|
|
global current_index
|
|
|
|
offset = 0
|
|
wav = []
|
|
if current_index == 0:
|
|
offset = 5
|
|
wav = model.generate.remote(prompts)
|
|
elif current_index == 5:
|
|
offset = 0
|
|
wav = model.generate.remote(prompts)
|
|
else:
|
|
return
|
|
|
|
print("generating new audio...")
|
|
|
|
for idx, one_wav in enumerate(wav):
|
|
# Will save under {idx}.wav, with loudness normalization at -14 db LUFS.
|
|
audio_write(
|
|
f"{idx + offset}",
|
|
one_wav.cpu(),
|
|
model.sample_rate,
|
|
format="mp3",
|
|
strategy="loudness",
|
|
loudness_compressor=True,
|
|
)
|
|
|
|
print("audio generated.")
|
|
|
|
|
|
def advance():
|
|
global current_index, t
|
|
|
|
if current_index == 9:
|
|
current_index = 0
|
|
else:
|
|
current_index = current_index + 1
|
|
|
|
threading.Thread(target=generate_new_audio).start()
|
|
|
|
t = threading.Timer(60, advance)
|
|
t.start()
|
|
|
|
|
|
app = FastAPI(lifespan=lifespan)
|
|
|
|
|
|
@app.get("/current.mp3")
|
|
def get_current_audio():
|
|
print("hello")
|
|
return FileResponse(f"{current_index}.mp3")
|
|
|
|
|
|
app.mount("/", StaticFiles(directory="web", html=True), name="web")
|