Update app.py

app.py

@@ -4,6 +4,22 @@ from lumaai import AsyncLumaAI
 import asyncio
 import aiohttp
 
+# 전역 변수로 카메라 모션 목록을 저장합니다.
+camera_motions = []
+
+async def get_camera_motions():
+    global camera_motions
+    api_key = os.getenv("LMGEN_KEY")
+    if not api_key:
+        raise gr.Error("LMGEN_KEY environment variable is not set.")
+    
+    client = AsyncLumaAI(auth_token=api_key)
+    motions = await client.generations.camera_motion.list()
+    camera_motions = [motion.name for motion in motions]
+
+# 앱 시작 시 카메라 모션 목록을 가져옵니다.
+asyncio.run(get_camera_motions())
+
 async def generate_video(client, prompt, loop=False, aspect_ratio="16:9", camera_motion=None, extend_id=None, reverse_extend_id=None, interpolate_ids=None, progress=gr.Progress()):
     generation_params = {
         "prompt": prompt,
@@ -160,15 +176,6 @@ async def image_to_video(prompt, image_url, loop, aspect_ratio, camera_motion, p
     except Exception as e:
         return None, f"An error occurred: {str(e)}"
 
-async def get_camera_motions():
-    api_key = os.getenv("LMGEN_KEY")
-    if not api_key:
-        raise gr.Error("LMGEN_KEY environment variable is not set.")
-    
-    client = AsyncLumaAI(auth_token=api_key)
-    motions = await client.generations.camera_motion.list()
-    return [motion.name for motion in motions]
-
 with gr.Blocks() as demo:
     gr.Markdown("# Luma AI Text-to-Video Demo")
     
@@ -181,7 +188,7 @@ with gr.Blocks() as demo:
         with gr.Accordion("Advanced Options", open=False):
             loop = gr.Checkbox(label="Loop", value=False)
             aspect_ratio = gr.Dropdown(label="Aspect Ratio", choices=["16:9", "1:1", "9:16", "4:3", "3:4"], value="16:9")
-            camera_motion = gr.Dropdown(label="Camera Motion", choices=lambda: asyncio.run(get_camera_motions()))
+            camera_motion = gr.Dropdown(label="Camera Motion", choices=camera_motions)
             extend_id = gr.Textbox(label="Extend Video ID (optional)")
             reverse_extend_id = gr.Textbox(label="Reverse Extend Video ID (optional)")
             with gr.Row():
@@ -204,7 +211,7 @@ with gr.Blocks() as demo:
         with gr.Accordion("Advanced Options", open=False):
             img_loop = gr.Checkbox(label="Loop", value=False)
             img_aspect_ratio = gr.Dropdown(label="Aspect Ratio", choices=["16:9", "1:1", "9:16", "4:3", "3:4"], value="16:9")
-            img_camera_motion = gr.Dropdown(label="Camera Motion", choices=lambda: asyncio.run(get_camera_motions()))
+            img_camera_motion = gr.Dropdown(label="Camera Motion", choices=camera_motions)
         
         img_generate_btn.click(
             image_to_video,