104 lines
3.8 KiB
Python
104 lines
3.8 KiB
Python
"""
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Vidu Text2Video - 文生视频模型
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Models: viduq3-pro, viduq3-turbo, viduq2
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"""
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import time
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from .modelverse_api.client import ModelverseClient
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from comfy.comfy_types.node_typing import IO
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MODELS = ["viduq3-pro", "viduq3-turbo", "viduq2"]
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ASPECT_RATIOS = ["16:9", "9:16", "3:4", "4:3", "1:1"]
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RESOLUTIONS = ["540p", "720p", "1080p"]
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class ViduText2VideoNode:
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"""
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Vidu Text2Video - 文生视频
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Models: viduq3-pro, viduq3-turbo, viduq2
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"""
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@classmethod
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def INPUT_TYPES(cls):
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return {
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"required": {
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"client": ("MODELVERSE_API_CLIENT",),
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"model": (MODELS, {"default": "viduq3-pro", "tooltip": "viduq3-pro: 效果好细节丰富, viduq3-turbo: 生成快, viduq2: 旧版模型"}),
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"prompt": (IO.STRING, {"multiline": True, "default": "A beautiful sunset over the ocean", "tooltip": "文本提示词，最长2000字符"}),
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"duration": (IO.INT, {"default": 5, "min": 1, "max": 10, "step": 1, "tooltip": "视频时长(秒)"}),
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"aspect_ratio": (ASPECT_RATIOS, {"default": "16:9", "tooltip": "长宽比"}),
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"resolution": (RESOLUTIONS, {"default": "720p", "tooltip": "分辨率"}),
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},
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"optional": {
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"seed": (IO.INT, {"default": 0, "min": 0, "max": 2147483647, "tooltip": "随机种子，0表示随机"}),
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"guidance_scale": (IO.FLOAT, {"default": 7.5, "min": 1.0, "max": 20.0, "step": 0.5, "tooltip": "引导系数"}),
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"bgm": (IO.BOOLEAN, {"default": False, "tooltip": "是否添加背景音乐"}),
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}
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}
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RETURN_TYPES = (IO.STRING, IO.STRING)
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RETURN_NAMES = ("url", "task_id")
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FUNCTION = "generate"
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CATEGORY = "UCLOUD_MODELVERSE/Vidu"
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def generate(self, client, model, prompt, duration, aspect_ratio, resolution, seed=0, guidance_scale=7.5, bgm=False):
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api_key = client.get("api_key")
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if not api_key:
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raise ValueError("API key is not set")
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mv_client = ModelverseClient(api_key)
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task_input = {"prompt": prompt}
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parameters = {
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"vidu_type": "text2video",
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"duration": duration,
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"aspect_ratio": aspect_ratio,
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"resolution": resolution,
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"seed": seed,
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"guidance_scale": guidance_scale,
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"bgm": bgm,
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}
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# Submit task
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submit_res = mv_client.submit_task(model, task_input, parameters)
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task_id = submit_res.get("output", {}).get("task_id")
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if not task_id:
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raise Exception(f"Failed to submit task: {submit_res}")
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print(f"Vidu T2V task submitted: {task_id}")
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# Poll for result
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video_url = self._poll_task(mv_client, task_id)
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return (video_url, task_id)
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def _poll_task(self, mv_client, task_id, max_retries=180):
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for i in range(max_retries):
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status_res = mv_client.get_task_status(task_id)
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task_status = status_res.get("output", {}).get("task_status")
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if task_status == "Success":
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urls = status_res.get("output", {}).get("urls", [])
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if urls:
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return urls[0]
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raise Exception("Task succeeded but no video URL returned")
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elif task_status == "Failure":
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error = status_res.get("output", {}).get("error_message", "Unknown error")
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raise Exception(f"Task failed: {error}")
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elif task_status in ["Pending", "Running"]:
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print(f"Task {task_id}: {task_status} ({i+1}/{max_retries})")
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time.sleep(5)
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else:
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raise Exception(f"Unknown status: {task_status}")
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raise Exception("Task timed out")
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NODE_CLASS_MAPPINGS = {
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"Vidu_Text2Video": ViduText2VideoNode,
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}
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NODE_DISPLAY_NAME_MAPPINGS = {
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"Vidu_Text2Video": "Vidu Text2Video",
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}
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