什么是 AVI 文件？
经典的 Windows 视频格式,兼容性广泛
The .AVI file (also known as an Audio Video Interleave file) is a very popular video format with both audio and video usually stored in an uncompressed format. The AVI video file was first developed by Microsoft in 1992 and for a long time was the standard video format for Windows machines. AVI files are a multimedia container format that stores audio and video using a variety of codecs; popular codecs with high compression ratios were DivX and XviD.
AVI files can be compressed, but typically they use less compression and are larger than many other popular video formats like MOV and MPEG. AVI files can be created without any compression and results in a “lossless AVI file.” These lossless AVI files have really large filesizes (can range between 2-3GB per minute of video). However, a lossless AVI file will not lose quality overtime and allows for playback without requiring any codecs to be installed on the user’s computer.
AVI 文件的常见用途
- 视频剪辑项目
- 存档素材
- Windows 视频播放
- 旧版视频内容
- Windows 摄像机
- 屏幕录制软件
- 视频剪辑导出文件
- 档案收藏
谁会使用 AVI 文件？
数字化服务机构、广播资料管理员和媒体档案保管员在修复磁带时代的素材时经常处理 AVI,安防团队也常从闭路电视和 DVR 系统收到 AVI 导出文件。在研究实验室和工业场景中,旧的采集硬件和分析软件仍默认写入 AVI,因此它也一直存续。
AVI 与 MP4：应该选择哪一个？
AVI 是 Microsoft 于 1992 年推出的基于 RIFF 的封装容器,而 MP4(MPEG-4 Part 14)是一种较新的国际标准,围绕 H.264 视频和 AAC 音频等高效编解码器设计。AVI 文件通常更大,因为它偏向于较旧或较轻的压缩,而且该格式对流媒体、章节和字幕轨道的支持不如 MP4。AVI 适用于传统 Windows 工作流程以及保存现有的存档素材,而 MP4 是分享、网页播放和移动设备的更佳选择。
将 MP4 转换为文字