1、增加图片视频

2、优化代码结构
3、up主下载分类逻辑可配置

expand/dy.image/MediaMergeRequest.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dy.image
+{
+    public class MediaMergeRequest
+    {
+        /// <summary>网络图片地址数组（必填）</summary>
+        public List<string> ImageUrls { get; set; }
+
+        /// <summary>网络MP3地址数组（必填）</summary>
+        public List<string> AudioUrls { get; set; }
+
+        /// <summary>每张图片显示时长（秒，默认3秒）</summary>
+        public int ImageDurationPerSecond { get; set; } = 3;
+
+        /// <summary>视频分辨率（格式：1920x1080，默认1920x1080）</summary>
+        public int VideoWidth { get; set; } = 1080;
+        public int VideoHeight { get; set; } = 1920;
+
+        /// <summary>输出视频格式（默认mp4）</summary>
+        public string OutputFormat { get; set; } = "mp4";
+
+        /// <summary>视频帧率（默认25）</summary>
+        public int VideoFps { get; set; } = 25;
+    }
+}