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把任意视频文件转成 HMI 能播放的 MP4，格式不对屏幕直接黑屏或报错。这一步做不好，后面视频播放控件全白搭。
| 项 | 要求 |
|---|---|
| 容器 | MP4（.mp4） |
| 视频编码 | H.264 |
| 音频流 | MP3 或 AAC |
| 最大分辨率 | < 1280×768 |
| 最大帧率 | < 30 fps |
| 最大码率 | < 1400 Kbps |
官方推荐 Freemake Video Converter（自行搜索下载，从网络获取，版权问题自担）。
整理自 广州大彩科技 VisualHMI 开发文档（hmi-doc.gz-dc.com）其他技术教程「视频文件转换说明」，版权归大彩科技所有。
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