Create app.py

app.py

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+import gradio as gr
+from PIL import Image
+import os
+import tempfile
+from typing import List
+
+def create_gif(
+    image_files: List[str],  # 修改为直接接收文件路径列表
+    scale: float = 1.0,
+    frame_duration: int = 200,
+    loop: bool = True
+) -> tuple:
+    """
+    将多张图片合并为GIF动画
+    
+    参数:
+    image_files: 图片文件路径列表
+    scale: 缩放比例(0.1-2.0)
+    frame_duration: 每帧持续时间(毫秒)
+    loop: 是否循环播放
+    
+    返回:
+    (输出路径, 错误信息)
+    """
+    try:
+        # 验证输入
+        if not image_files:
+            return None, "错误: 请至少选择一张图片"
+        
+        images = []
+        for file_info in image_files:
+            path = file_info if isinstance(file_info, str) else file_info.name  # 处理两种输入方式
+            if not os.path.exists(path):
+                return None, f"错误: 文件不存在 - {path}"
+            
+            valid_ext = ('.jpg', '.jpeg', '.png', '.webp')
+            if not path.lower().endswith(valid_ext):
+                return None, f"错误: 不支持的文件格式 - {path}"
+            
+            img = Image.open(path)
+            if scale != 1.0:
+                new_size = (int(img.width * scale), int(img.height * scale))
+                img = img.resize(new_size, Image.LANCZOS)
+            images.append(img)
+        
+        # 设置输出路径
+        output_dir = tempfile.gettempdir()
+        output_path = os.path.join(output_dir, "output.gif")
+        
+        # 保存为GIF
+        images[0].save(
+            output_path,
+            save_all=True,
+            append_images=images[1:],
+            duration=frame_duration,
+            loop=0 if loop else 1,
+            optimize=True
+        )
+        
+        return output_path, "GIF创建成功!"
+    
+    except Exception as e:
+        return None, f"错误: {str(e)}"
+
+# Gradio界面
+with gr.Blocks(title="多图转GIF转换器") as demo:
+    gr.Markdown("## 🎞️ 多图转GIF转换器")
+    gr.Markdown("上传多张图片，设置参数后生成GIF动画")
+    
+    with gr.Row():
+        with gr.Column():
+            file_input = gr.Files(
+                label="选择多张图片",
+                file_types=["image"],
+                file_count="multiple"
+            )
+            with gr.Accordion("高级选项", open=False):
+                scale_slider = gr.Slider(0.1, 2.0, value=1.0, step=0.1, label="缩放比例")
+                duration_slider = gr.Slider(50, 2000, value=200, step=50, label="每帧时长(毫秒)")
+                loop_checkbox = gr.Checkbox(value=True, label="循环播放")
+            convert_btn = gr.Button("生成GIF", variant="primary")
+            
+        with gr.Column():
+            output_gif = gr.Image(label="生成的GIF", interactive=False)
+            output_download = gr.File(label="下载GIF", visible=False)
+            output_message = gr.Textbox(label="状态信息", interactive=False)
+    
+    # 处理转换
+    def process_files(
+        files: List,  # 修改为普通List类型
+        scale: float,
+        duration: int,
+        loop: bool
+    ) -> tuple:
+        if not files:
+            return None, None, "请先上传图片"
+        
+        output_path, msg = create_gif(files, scale=scale, frame_duration=duration, loop=loop)
+        
+        if output_path:
+            return output_path, output_path, msg
+        else:
+            return None, None, msg
+    
+    convert_btn.click(
+        process_files,
+        inputs=[file_input, scale_slider, duration_slider, loop_checkbox],
+        outputs=[output_gif, output_download, output_message]
+    )
+
+# 启动应用
+if __name__ == "__main__":
+    demo.launch()