创建社交媒体视频

创建适用于抖音和 Instagram 的竖屏视频

创建社交媒体视频

学习如何创建适用于社交媒体平台的竖屏视频。

你将创建什么

一个 8 秒的竖屏视频(9:16),包含:

  • 带调暗效果的背景图片
  • 醒目的标题
  • 多行正文
  • 品牌水印

完整 Schema

{
  "meta": {
    "version": "2.0.0",
    "title": "社交媒体帖子"
  },
  "video": {
    "width": 1080,
    "height": 1920,
    "fps": 30,
    "duration": 8,
    "background": "#000000"
  },
  "tracks": [
    {
      "id": "background",
      "type": "visual",
      "clips": [
        {
          "type": "image",
          "src": "https://picsum.photos/1080/1920",
          "start": 0,
          "duration": 8,
          "transform": {
            "x": "50%",
            "y": "50%",
            "width": "100%",
            "height": "100%",
            "anchor": "center"
          },
          "style": {
            "filters": [{ "type": "brightness", "value": 0.7 }]
          },
          "zIndex": 0
        }
      ]
    },
    {
      "id": "content",
      "type": "visual",
      "clips": [
        {
          "type": "text",
          "text": "周一动力",
          "start": 0.5,
          "duration": 7.5,
          "transform": {
            "x": "50%",
            "y": "30%",
            "anchor": "center"
          },
          "style": {
            "fontSize": 72,
            "fontWeight": 900,
            "fill": "#ffffff",
            "shadowColor": "#000000",
            "shadowBlur": 10
          },
          "animations": [{ "type": "zoomIn", "duration": 0.5, "easing": "easeOutBack" }],
          "zIndex": 10
        },
        {
          "type": "text",
          "text": "新的一周\n新的开始",
          "start": 1.5,
          "duration": 6.5,
          "transform": {
            "x": "50%",
            "y": "50%",
            "anchor": "center"
          },
          "style": {
            "fontSize": 48,
            "fontWeight": 600,
            "fill": "#ffffff",
            "textAlign": "center",
            "lineHeight": 1.4
          },
          "animations": [{ "type": "fadeIn", "duration": 0.5 }],
          "zIndex": 10
        },
        {
          "type": "text",
          "text": "@你的品牌",
          "start": 2,
          "duration": 6,
          "transform": {
            "x": "50%",
            "y": "85%",
            "anchor": "center"
          },
          "style": {
            "fontSize": 32,
            "fill": "#ffffff",
            "opacity": 0.8
          },
          "animations": [{ "type": "fadeIn", "duration": 0.5 }],
          "zIndex": 10
        }
      ]
    }
  ]
}

平台规格

抖音 / Instagram Reels / YouTube Shorts

属性
宽高比9:16
分辨率1080 x 1920
时长15-60 秒(最佳)
帧率30

Instagram Stories

属性
宽高比9:16
分辨率1080 x 1920
时长最长 60 秒

核心技巧

图片滤镜

调暗背景以提高文字可见度:

{
  "style": {
    "filters": [{ "type": "brightness", "value": 0.7 }]
  }
}

可用滤镜:

  • brightness: 0-2(1 = 正常)
  • blur: 0-20
  • contrast: 0-2
  • saturate: 0-2

多行文本

使用 \n 换行:

{
  "text": "第一行\n第二行\n第三行",
  "style": {
    "textAlign": "center",
    "lineHeight": 1.4
  }
}

弹跳动画

使用 easeOutBack 实现弹跳效果:

{
  "animations": [
    { "type": "zoomIn", "duration": 0.5, "easing": "easeOutBack" }
  ]
}

内容建议

  1. 前 3 秒抓住注意力:立即吸引观众
  2. 文字要精简:手机屏幕很小
  3. 使用高对比度:确保文字清晰可读
  4. 保持品牌一致:始终包含你的账号/Logo

下一步