feat: initial code for fal.ai integration

fal_app.py

@@ -0,0 +1,35 @@
+import io
+import fal
+import torch
+from fal.toolkit import File
+
+from prompts import PROMPTS
+
+
+class InfinifiFalApp(fal.App, keep_alive=300):
+    machine_type = "GPU-A6000"
+    requirements = [
+        "torch==2.1.0",
+        "audiocraft==1.3.0",
+        "torchaudio==2.1.0",
+        "websockets==11.0.3",
+    ]
+
+    def setup(self):
+        import torchaudio
+        from audiocraft.models.musicgen import MusicGen
+
+        self.model = MusicGen.get_pretrained("facebook/musicgen-large")
+        self.model.set_generation_params(duration=60)
+
+    @fal.endpoint("/generate")
+    def run(self):
+        wav = self.model.generate(PROMPTS)
+
+        serialized = []
+        for one_wav in wav:
+            buf = io.BytesIO()
+            torch.save(one_wav.cpu(), buf)
+            serialized.append(buf.getvalue())
+
+        return serialized

generate.py

@@ -2,6 +2,8 @@
 from audiocraft.models.musicgen import MusicGen
 from audiocraft.data.audio import audio_write
 
+from prompts import PROMPTS
+
 MODEL_NAME = "facebook/musicgen-large"
 MUSIC_DURATION_SECONDS = 60
 
@@ -17,7 +19,7 @@
 
 
 def generate(offset=0):
-    wav = model.generate(descriptions)
+    wav = model.generate(PROMPTS)
 
     for idx, one_wav in enumerate(wav):
         # Will save under {idx}.wav, with loudness normalization at -14 db LUFS.

generate_manual.py

@@ -3,25 +3,20 @@
 from audiocraft.models.musicgen import MusicGen
 from audiocraft.data.audio import audio_write
 
+from prompts import PROMPTS
+
 MODEL_NAME = "facebook/musicgen-large"
 MUSIC_DURATION_SECONDS = 60
 
 print("obtaining model...")
 
 model = MusicGen.get_pretrained(MODEL_NAME)
 model.set_generation_params(duration=MUSIC_DURATION_SECONDS)
-descriptions = [
-    "Create a futuristic lo-fi beat that blends modern electronic elements with synthwave influences. Incorporate smooth, atmospheric synths and gentle, relaxing rhythms to evoke a sense of a serene, neon-lit future. Ensure  the track is continuous with no background noise or interruptions, maintaining a calm and tranquil atmosphere throughout while adding a touch of retro-futuristic vibes.",
-    "gentle lo-fi beat with a smooth, mellow piano melody in the background. Ensure there are no background noises or interruptions, maintaining a continuous and seamless flow throughout the track. The beat should be relaxing and tranquil, perfect for a calm and reflective atmosphere.",
-    "Create an earthy lo-fi beat that evokes a natural, grounded atmosphere. Incorporate organic sounds like soft percussion, rustling leaves, and gentle acoustic instruments. The track should have a warm, soothing rhythm with a continuous flow and no background noise or interruptions, maintaining a calm and reflective ambiance throughout.",
-    "Create a soothing lo-fi beat featuring gentle, melodic guitar riffs. The guitar should be the focal point, supported by subtle, ambient electronic elements and a smooth, relaxed rhythm. Ensure the track is continuous with no background noise or interruptions, maintaining a warm and mellow atmosphere throughout.",
-    "Create an ambient lo-fi beat with a tranquil and ethereal atmosphere. Use soft, atmospheric pads, gentle melodies, and minimalistic percussion to evoke a sense of calm and serenity. Ensure the track is continuous with no background noise or interruptions, maintaining a soothing and immersive ambiance throughout.",
-]
 
 print("model obtained. generating audio...")
 
 a = time.time()
-wav = model.generate(descriptions)
+wav = model.generate(PROMPTS)
 b = time.time()
 
 print(f"audio generated. took {b - a} seconds.")

prompts.py

@@ -0,0 +1,7 @@
+PROMPTS = [
+    "Create a futuristic lo-fi beat that blends modern electronic elements with synthwave influences. Incorporate smooth, atmospheric synths and gentle, relaxing rhythms to evoke a sense of a serene, neon-lit future. Ensure  the track is continuous with no background noise or interruptions, maintaining a calm and tranquil atmosphere throughout while adding a touch of retro-futuristic vibes.",
+    "gentle lo-fi beat with a smooth, mellow piano melody in the background. Ensure there are no background noises or interruptions, maintaining a continuous and seamless flow throughout the track. The beat should be relaxing and tranquil, perfect for a calm and reflective atmosphere.",
+    "Create an earthy lo-fi beat that evokes a natural, grounded atmosphere. Incorporate organic sounds like soft percussion, rustling leaves, and gentle acoustic instruments. The track should have a warm, soothing rhythm with a continuous flow and no background noise or interruptions, maintaining a calm and reflective ambiance throughout.",
+    "Create a soothing lo-fi beat featuring gentle, melodic guitar riffs. The guitar should be the focal point, supported by subtle, ambient electronic elements and a smooth, relaxed rhythm. Ensure the track is continuous with no background noise or interruptions, maintaining a warm and mellow atmosphere throughout.",
+    "Create an ambient lo-fi beat with a tranquil and ethereal atmosphere. Use soft, atmospheric pads, gentle melodies, and minimalistic percussion to evoke a sense of calm and serenity. Ensure the track is continuous with no background noise or interruptions, maintaining a soothing and immersive ambiance throughout.",
+]