Jony
07f0c5ed5f
- 新增 utils/r2_uploader.py：通过 o1key 后端预签名接口上传视频/音频，零 R2 凭证 - seedance_video.py：视频、音频均改为 await upload_video/upload_audio，移除 base64 inline 编码 - 删除 doubao-seedance-2-0-fast 模型选项 - .config 加入 .gitignore，停止 git 追踪，防止 API Key 泄露 - base_client.py：新增系统代理自动检测（Windows 注册表 / macOS networksetup）
680 lines
25 KiB
Python
680 lines
25 KiB
Python
"""
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Google Gemini 节点
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ComfyUI 自定义节点,用于调用 Gemini Flash 模型进行多模态文本生成
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"""
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import base64
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import os
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import time
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import tempfile
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from typing import Dict, List, Optional, Tuple
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from io import BytesIO
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import torch
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from PIL import Image
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from ..utils.image_utils import tensor_to_pil, encode_image_to_base64
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from ..utils.file_types import FileData
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from ..clients.gemini_flash_client import GeminiFlashClient
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from ..models_config import get_enabled_flash_models
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# 文件大小限制（20MB）
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MAX_FILE_SIZE = 20 * 1024 * 1024
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# 图片缩放后最大尺寸（1K分辨率 = 1024像素）
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MAX_IMAGE_DIMENSION = 1024
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# 视频压缩目标大小（1-10MB）
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TARGET_VIDEO_SIZE_MIN = 1 * 1024 * 1024
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TARGET_VIDEO_SIZE_MAX = 10 * 1024 * 1024
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# 支持的视频 MIME 类型映射
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VIDEO_MIME_TYPES = {
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".mp4": "video/mp4",
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".mpeg": "video/mpeg",
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".mpg": "video/mpg",
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".mov": "video/quicktime",
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".avi": "video/x-msvideo",
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".flv": "video/x-flv",
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".webm": "video/webm",
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".wmv": "video/x-ms-wmv",
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".3gp": "video/3gpp",
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".3gpp": "video/3gpp"
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}
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try:
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import subprocess
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FFMPEG_AVAILABLE = True
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except ImportError:
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FFMPEG_AVAILABLE = False
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class GoogleGemini:
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"""
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Google Gemini 节点
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功能：
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- 支持多个 Gemini Flash 模型
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- 支持图片、视频和文件输入
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- 支持不同思考等级（不思考/低/中/高）- 通过 thinkingConfig.thinkingLevel 控制
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- 输出生成的文本内容（主要内容 + 思考内容）
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"""
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# 支持的思考等级选项
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THINKING_LEVELS = ["不思考", "低", "中", "高"]
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def __init__(self):
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"""初始化节点"""
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self.client = None
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@classmethod
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def INPUT_TYPES(cls):
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"""
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定义输入参数
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"""
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# 从配置获取启用的模型列表
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enabled_models = get_enabled_flash_models()
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default_model = enabled_models[0] if enabled_models else "gemini-3-flash-preview"
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return {
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"required": {
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"模型": (enabled_models, {
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"default": default_model
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}),
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"提示词": ("STRING", {
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"default": "",
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"multiline": True
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}),
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"思考等级": (cls.THINKING_LEVELS, {
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"default": "不思考"
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})
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},
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"optional": {
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"图片": ("IMAGE",),
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"视频": ("VIDEO",),
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"文件": ("FILE",)
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}
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}
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# 返回值类型
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RETURN_TYPES = ("STRING",)
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RETURN_NAMES = ("主要内容",)
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# 执行函数名
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FUNCTION = "generate"
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# 节点分类
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CATEGORY = "text/generation"
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# 允许输出到 UI
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OUTPUT_NODE = True
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def _resize_image_if_needed(self, img: Image.Image) -> Image.Image:
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"""
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如果图片过大，缩放到1K分辨率
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Args:
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img: PIL Image 对象
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Returns:
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缩放后的 PIL Image
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"""
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width, height = img.size
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max_dim = max(width, height)
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if max_dim > MAX_IMAGE_DIMENSION:
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# 计算缩放比例
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scale = MAX_IMAGE_DIMENSION / max_dim
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new_width = int(width * scale)
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new_height = int(height * scale)
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print(f"Google Gemini: 图片尺寸 {width}x{height} 超过限制，缩放至 {new_width}x{new_height}")
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img = img.resize((new_width, new_height), Image.Resampling.LANCZOS)
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return img
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def _check_and_compress_image(self, img: Image.Image) -> str:
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"""
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检查图片大小，如果超过20MB则进行压缩
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Args:
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img: PIL Image 对象
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Returns:
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base64 编码的字符串
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"""
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# 先进行尺寸缩放（如果需要）
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img = self._resize_image_if_needed(img)
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# 尝试不同的压缩质量
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qualities = [95, 85, 75, 65, 55, 45]
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for quality in qualities:
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buffer = BytesIO()
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# 转换为RGB模式（去除alpha通道）以减小体积
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if img.mode in ('RGBA', 'P'):
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img_rgb = img.convert('RGB')
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else:
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img_rgb = img
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img_rgb.save(buffer, format='JPEG', quality=quality, optimize=True)
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buffer.seek(0)
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data = buffer.getvalue()
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if len(data) <= MAX_FILE_SIZE:
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print(f"Google Gemini: 图片压缩后大小 {len(data) / 1024 / 1024:.2f}MB (质量{quality})")
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return base64.b64encode(data).decode('utf-8')
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# 如果所有质量都无法满足，使用最低质量
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print(f"Google Gemini: 警告 - 即使最低质量仍超过20MB，将使用最低质量发送")
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return base64.b64encode(data).decode('utf-8')
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def _prepare_image_data(
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self,
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images: Optional[torch.Tensor]
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) -> Optional[List[Dict[str, str]]]:
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"""
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准备图片数据
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如果图片超过20MB，会自动进行缩放和压缩
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Args:
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images: ComfyUI 图片张量 [B, H, W, C]
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Returns:
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图片数据列表，每个元素包含 mime_type 和 data
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"""
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if images is None:
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return None
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pil_images = tensor_to_pil(images)
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if not pil_images:
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return None
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# 将所有图片转为 RGB PIL Image 并首次编码
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processed = [] # [(pil_img_rgb, b64_data, mime_type)]
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for img in pil_images:
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buffer = BytesIO()
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img.save(buffer, format='PNG')
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original_size = buffer.tell()
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buffer.close()
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if original_size > MAX_FILE_SIZE:
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print(f"Google Gemini: 检测到图片过大 ({original_size / 1024 / 1024:.2f}MB)，正在进行压缩...")
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img_rgb = img.convert('RGB') if img.mode != 'RGB' else img.copy()
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b64_str = self._check_and_compress_image(img_rgb)
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processed.append((img_rgb, b64_str, "image/jpeg"))
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else:
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b64_str = encode_image_to_base64(img)
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processed.append((None, b64_str, "image/png"))
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# 多图总体积控制
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def calc_total_bytes():
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return sum(len(base64.b64decode(item[1])) for item in processed)
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total = calc_total_bytes()
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if total > MAX_FILE_SIZE and len(processed) > 1:
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print(f"Google Gemini: 图片总体积 {total / 1024 / 1024:.2f}MB 超过 {MAX_FILE_SIZE // 1024 // 1024}MB 限制，正在压缩...")
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# 降质量
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for quality in range(70, 19, -10):
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new_processed = []
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for pil_img, _, _ in processed:
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if pil_img is None:
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# PNG 原图需要转 RGB
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continue
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buf = BytesIO()
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pil_img.save(buf, format='JPEG', quality=quality, optimize=True)
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data = buf.getvalue()
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new_processed.append((pil_img, base64.b64encode(data).decode('utf-8'), "image/jpeg"))
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if not new_processed:
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break
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processed = new_processed
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total = calc_total_bytes()
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if total <= MAX_FILE_SIZE:
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print(f"Google Gemini: 图片压缩完成，总体积 {total / 1024 / 1024:.2f}MB ({len(processed)}张图片，质量{quality})")
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break
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# 降分辨率
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if total > MAX_FILE_SIZE:
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for scale in [0.75, 0.5, 0.35]:
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new_processed = []
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for pil_img, _, _ in processed:
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if pil_img is None:
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continue
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w, h = pil_img.size
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resized = pil_img.resize((int(w * scale), int(h * scale)), Image.Resampling.LANCZOS)
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buf = BytesIO()
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resized.save(buf, format='JPEG', quality=20, optimize=True)
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data = buf.getvalue()
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new_processed.append((resized, base64.b64encode(data).decode('utf-8'), "image/jpeg"))
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if not new_processed:
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break
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processed = new_processed
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total = calc_total_bytes()
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if total <= MAX_FILE_SIZE:
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print(f"Google Gemini: 图片压缩完成，总体积 {total / 1024 / 1024:.2f}MB ({len(processed)}张图片，缩放{int(scale*100)}%)")
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break
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if total > MAX_FILE_SIZE:
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print(f"Google Gemini: 无法将 {len(processed)} 张图片压缩到 {MAX_FILE_SIZE // 1024 // 1024}MB 以内，请减少图片数量或降低分辨率")
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raise ValueError(f"图片总体积 {total / 1024 / 1024:.2f}MB 超过限制，无法压缩到 {MAX_FILE_SIZE // 1024 // 1024}MB 以内")
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image_data = [{"mime_type": mt, "data": b64} for _, b64, mt in processed]
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return image_data
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def _compress_video_with_ffmpeg(self, input_path: str, output_path: str, target_size: int) -> bool:
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"""
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使用 FFmpeg 压缩视频到目标大小
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Args:
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input_path: 输入视频路径
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output_path: 输出视频路径
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target_size: 目标文件大小（字节）
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Returns:
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是否压缩成功
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"""
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try:
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# 获取视频时长（秒）
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probe_cmd = ['ffprobe', '-v', 'error', '-show_entries', 'format=duration',
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'-of', 'default=noprint_wrappers=1:nokey=1', input_path]
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duration = float(subprocess.check_output(probe_cmd).decode().strip())
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# 计算目标比特率（bit/s），预留一些余量
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target_bitrate = int((target_size * 8) / duration * 0.9)
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# 使用 FFmpeg 压缩视频
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# -c:v libx264: 使用 H.264 编码器
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# -b:v: 视频比特率
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# -maxrate 和 -bufsize: 控制码率波动
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# -c:a aac: 音频使用 AAC 编码
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# -b:a 128k: 音频比特率 128k
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# -movflags +faststart: 优化网络播放
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cmd = [
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'ffmpeg', '-y', '-i', input_path,
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'-c:v', 'libx264',
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'-b:v', f'{target_bitrate}',
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'-maxrate', f'{int(target_bitrate * 1.5)}',
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'-bufsize', f'{target_bitrate * 2}',
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'-c:a', 'aac',
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'-b:a', '128k',
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'-movflags', '+faststart',
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'-preset', 'fast',
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output_path
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]
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print(f"Google Gemini: 正在压缩视频到 {target_size / 1024 / 1024:.1f}MB...")
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result = subprocess.run(cmd, capture_output=True, text=True)
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if result.returncode == 0 and os.path.exists(output_path):
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final_size = os.path.getsize(output_path)
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print(f"Google Gemini: 视频压缩完成，最终大小 {final_size / 1024 / 1024:.2f}MB")
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return True
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else:
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print(f"Google Gemini: FFmpeg 压缩失败: {result.stderr}")
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return False
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except Exception as e:
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print(f"Google Gemini: 视频压缩异常: {str(e)}")
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return False
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def _compress_video(self, video_path: str) -> str:
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"""
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压缩视频到 1-10MB 之间
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Args:
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video_path: 原视频路径
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Returns:
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压缩后的视频路径（临时文件）
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"""
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original_size = os.path.getsize(video_path)
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print(f"Google Gemini: 视频文件过大 ({original_size / 1024 / 1024:.2f}MB)，正在压缩...")
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# 创建临时文件
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temp_dir = tempfile.gettempdir()
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_, ext = os.path.splitext(video_path)
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output_path = os.path.join(temp_dir, f"compressed_{int(time.time())}{ext}")
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# 确定目标大小（优先尝试 10MB，如果不行再降低）
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target_sizes = [
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TARGET_VIDEO_SIZE_MAX, # 10MB
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int(TARGET_VIDEO_SIZE_MAX * 0.8), # 8MB
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int(TARGET_VIDEO_SIZE_MAX * 0.6), # 6MB
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int(TARGET_VIDEO_SIZE_MAX * 0.5), # 5MB
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TARGET_VIDEO_SIZE_MIN * 5, # 5MB
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TARGET_VIDEO_SIZE_MIN * 3, # 3MB
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TARGET_VIDEO_SIZE_MIN * 2, # 2MB
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]
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# 优先尝试 FFmpeg
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if FFMPEG_AVAILABLE:
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for target_size in target_sizes:
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if self._compress_video_with_ffmpeg(video_path, output_path, target_size):
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# 检查最终大小
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final_size = os.path.getsize(output_path)
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if TARGET_VIDEO_SIZE_MIN <= final_size <= MAX_FILE_SIZE:
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return output_path
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# 如果仍然太大，继续降低目标
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os.remove(output_path)
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# 所有压缩方法都失败
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raise ValueError(
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f"视频文件过大 ({original_size / 1024 / 1024:.2f}MB) 且无法压缩到 20MB 以下。"
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f"请安装 FFmpeg 以获得更好的压缩效果，或手动压缩视频。"
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)
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def _prepare_video_data(
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self,
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video
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) -> Optional[Dict[str, str]]:
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"""
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准备视频数据
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ComfyUI VIDEO 类型包含视频文件路径信息。
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读取视频文件并转换为 base64。
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如果视频超过 20MB，会自动进行压缩。
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Args:
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video: ComfyUI VIDEO 类型数据
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Returns:
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视频数据字典，包含 mime_type 和 data
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"""
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if video is None:
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return None
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# VIDEO 类型处理：支持多种格式
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video_path = None
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temp_compressed_path = None
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if isinstance(video, dict):
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# 字典格式：尝试常见的键名
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video_path = video.get("video") or video.get("path") or video.get("file") or video.get("filename")
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# 如果还是找不到，遍历所有键找到有效路径
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if not video_path:
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for key, val in video.items():
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if isinstance(val, str) and os.path.exists(val):
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video_path = val
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break
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elif isinstance(video, str):
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# 字符串格式：直接作为路径
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video_path = video
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else:
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# 对象格式：尝试常见属性
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# 1. 尝试 __file 属性（VideoFromFile 对象）
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if hasattr(video, "__file"):
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video_path = video.__file
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# 2. 尝试其他常见属性
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elif hasattr(video, "video"):
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video_path = video.video
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elif hasattr(video, "path"):
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video_path = video.path
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elif hasattr(video, "filename"):
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video_path = video.filename
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# 3. 尝试从 __dict__ 中查找路径（支持私有属性如 _VideoFromFile__file）
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elif hasattr(video, "__dict__"):
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for attr_name, attr_value in video.__dict__.items():
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# 查找字符串类型的属性，且包含 file 或 path 关键字
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if isinstance(attr_value, str):
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if "file" in attr_name.lower() or "path" in attr_name.lower():
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# 验证路径是否有效
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if os.path.exists(attr_value):
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video_path = attr_value
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break
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# 如果属性值本身看起来像文件路径，也尝试使用
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elif os.path.exists(attr_value) and os.path.isfile(attr_value):
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video_path = attr_value
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break
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if not video_path or not os.path.exists(video_path):
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print(f"Google Gemini: 视频文件不存在或路径无效: {video_path}")
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return None
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# 获取文件扩展名和 MIME 类型
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_, ext = os.path.splitext(video_path)
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ext = ext.lower()
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mime_type = VIDEO_MIME_TYPES.get(ext, "video/mp4")
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try:
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# 检查文件大小
|
||
file_size = os.path.getsize(video_path)
|
||
|
||
# 如果超过 20MB，进行压缩
|
||
if file_size > MAX_FILE_SIZE:
|
||
video_path = self._compress_video(video_path)
|
||
temp_compressed_path = video_path
|
||
# 压缩后统一使用 mp4 格式
|
||
mime_type = "video/mp4"
|
||
|
||
# 读取并编码视频
|
||
with open(video_path, "rb") as f:
|
||
video_bytes = f.read()
|
||
|
||
b64_str = base64.b64encode(video_bytes).decode("utf-8")
|
||
|
||
# 清理临时文件
|
||
if temp_compressed_path and os.path.exists(temp_compressed_path):
|
||
try:
|
||
os.remove(temp_compressed_path)
|
||
print(f"Google Gemini: 临时压缩文件已清理")
|
||
except:
|
||
pass
|
||
|
||
return {
|
||
"mime_type": mime_type,
|
||
"data": b64_str
|
||
}
|
||
|
||
except Exception as e:
|
||
# 清理临时文件
|
||
if temp_compressed_path and os.path.exists(temp_compressed_path):
|
||
try:
|
||
os.remove(temp_compressed_path)
|
||
except:
|
||
pass
|
||
|
||
print(f"Google Gemini: 处理视频文件失败 - {str(e)}")
|
||
return None
|
||
|
||
def _prepare_file_data(
|
||
self,
|
||
file: Optional[FileData]
|
||
) -> Optional[Dict[str, str]]:
|
||
"""
|
||
准备文件数据
|
||
|
||
从 FILE 类型提取文件数据
|
||
|
||
Args:
|
||
file: FileData 对象（来自 LoadFile 节点）
|
||
|
||
Returns:
|
||
文件数据字典，包含 mime_type 和 data
|
||
"""
|
||
if file is None:
|
||
return None
|
||
|
||
return {
|
||
"mime_type": file.mime_type,
|
||
"data": file.data
|
||
}
|
||
|
||
def _parse_dual_output(self, raw_response: Dict) -> Tuple[str, str]:
|
||
"""
|
||
解析包含思考内容和主要内容的响应
|
||
|
||
Args:
|
||
raw_response: API 原始响应字典
|
||
|
||
Returns:
|
||
(主要内容, 思考内容)
|
||
"""
|
||
candidates = raw_response.get("candidates", [])
|
||
if not candidates:
|
||
return ("", "")
|
||
|
||
parts = candidates[0].get("content", {}).get("parts", [])
|
||
|
||
thought_text = ""
|
||
main_text = ""
|
||
|
||
for part in parts:
|
||
if part.get("thought") is True:
|
||
# 思考部分
|
||
thought_text = part.get("text", "")
|
||
elif "thoughtSignature" in part or "text" in part:
|
||
# 主要内容
|
||
main_text = part.get("text", "")
|
||
|
||
return main_text
|
||
|
||
def generate(
|
||
self,
|
||
模型: str,
|
||
提示词: str,
|
||
思考等级: str,
|
||
图片: Optional[torch.Tensor] = None,
|
||
视频=None,
|
||
文件: Optional[FileData] = None
|
||
) -> Tuple[str]:
|
||
"""
|
||
生成文本
|
||
|
||
Args:
|
||
模型: 使用的模型名称
|
||
提示词: 用户提示词
|
||
思考等级: 思考等级选项
|
||
图片: 输入图片
|
||
视频: 输入视频
|
||
文件: 输入文件（PDF/TXT）
|
||
|
||
Returns:
|
||
(主要内容, 思考内容)
|
||
"""
|
||
start_time = time.time()
|
||
|
||
try:
|
||
# 初始化 API 客户端
|
||
if self.client is None:
|
||
try:
|
||
self.client = GeminiFlashClient()
|
||
except ValueError as e:
|
||
raise ValueError(f"初始化失败: {str(e)}")
|
||
|
||
# 准备图片数据
|
||
image_data = self._prepare_image_data(图片)
|
||
if image_data:
|
||
print(f"Google Gemini: 输入 {len(image_data)} 张图片")
|
||
|
||
# 准备视频数据
|
||
video_data = self._prepare_video_data(视频)
|
||
if video_data:
|
||
print(f"Google Gemini: 输入视频 ({video_data['mime_type']})")
|
||
|
||
# 准备文件数据
|
||
document_data = self._prepare_file_data(文件)
|
||
if document_data:
|
||
file_type = "PDF" if document_data['mime_type'] == "application/pdf" else "TXT"
|
||
print(f"Google Gemini: 输入文件 ({file_type})")
|
||
|
||
# 构建输入描述
|
||
input_desc = []
|
||
if 提示词:
|
||
input_desc.append("文本")
|
||
if image_data:
|
||
input_desc.append(f"{len(image_data)}张图片")
|
||
if video_data:
|
||
input_desc.append("视频")
|
||
if document_data:
|
||
input_desc.append("文件")
|
||
|
||
print(f"Google Gemini: 模型 = {模型}")
|
||
print(f"Google Gemini: 多模态输入 ({', '.join(input_desc)})")
|
||
print(f"Google Gemini: 思考等级 = {思考等级}")
|
||
|
||
# 获取端点和构建请求体
|
||
endpoint = self.client.get_endpoint(model=模型)
|
||
request_body = self.client.build_request_body(
|
||
prompt=提示词,
|
||
model=模型,
|
||
thinking_level=思考等级,
|
||
image_data=image_data,
|
||
video_data=video_data,
|
||
document_data=document_data
|
||
)
|
||
|
||
print(f"Google Gemini: 发送请求...")
|
||
|
||
# 调用底层 API 获取原始响应
|
||
async def get_raw_response():
|
||
return await self.client.request_async(
|
||
endpoint,
|
||
request_body,
|
||
session=None
|
||
)
|
||
|
||
# 在独立线程中执行异步请求
|
||
raw_response = self.client.run_async_in_thread(get_raw_response())
|
||
|
||
# 计算耗时
|
||
elapsed = time.time() - start_time
|
||
|
||
# 解析响应，分离主要内容和思考内容
|
||
main_text = self._parse_dual_output(raw_response)
|
||
|
||
# 打印响应 token 用量
|
||
usage = raw_response.get("usageMetadata", {})
|
||
prompt_tokens = usage.get("promptTokenCount", 0)
|
||
candidates_tokens = usage.get("candidatesTokenCount", 0)
|
||
thoughts_tokens = usage.get("thoughtsTokenCount", 0)
|
||
total_tokens = usage.get("totalTokenCount", 0)
|
||
finish_reason = ""
|
||
candidates = raw_response.get("candidates", [])
|
||
if candidates:
|
||
finish_reason = candidates[0].get("finishReason", "")
|
||
|
||
print(f"Google Gemini: 生成完成 (耗时: {elapsed:.2f}s)")
|
||
print(f"Google Gemini: finishReason = {finish_reason}")
|
||
print(f"Google Gemini: Token 用量 — 输入: {prompt_tokens}, 输出: {candidates_tokens}, 思考: {thoughts_tokens}, 合计: {total_tokens}")
|
||
print(f"Google Gemini: 主要内容长度: {len(main_text)} 字符")
|
||
|
||
# 输出预览
|
||
if main_text:
|
||
preview = main_text[:100] + "..." if len(main_text) > 100 else main_text
|
||
print(f"Google Gemini: 主要内容预览: {preview}")
|
||
|
||
return (main_text,)
|
||
if str(e) == "未授权！":
|
||
print("请联系作者授权后方可使用！")
|
||
raise ValueError("未授权！") from None
|
||
else:
|
||
# 用户输入错误 - 只显示简洁信息
|
||
error_msg = str(e).split('\n')[0] # 只取第一行
|
||
print(f"Google Gemini: ❌ {error_msg}")
|
||
raise ValueError(error_msg) from None
|
||
|
||
except RuntimeError as e:
|
||
# 日志只打第一行；报错框展示完整多行
|
||
error_full = str(e)
|
||
print(f"Google Gemini: ❌ {error_full.split('\n')[0]}")
|
||
raise RuntimeError(error_full) from None
|
||
|
||
except Exception as e:
|
||
# 其他未知错误 - 只显示简洁信息
|
||
error_msg = str(e).split('\n')[0]
|
||
print(f"Google Gemini: ❌ {error_msg}")
|
||
raise type(e)(error_msg) from None
|
||
|
||
finally:
|
||
if self.client is not None:
|
||
try:
|
||
balance_data = self.client.query_balance_sync()
|
||
balance_info = self.client.format_balance_info(balance_data)
|
||
print(f"Google Gemini: {balance_info}")
|
||
except Exception:
|
||
pass
|