It does. WebM是免费网域网装容器——VP9或AV1视频,带有Opus音频,由每个现代浏览器按本地解码。. That is precisely what decides whether a cut can be placed arbitrarily or has to land on a structural boundary.
修剪时有什么具体关于 WebM 的具体信息吗?
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Yes — WebM 是 VP9 或 AV1, 带有 Opus 音频, 浏览器会以本地方式解码, 但大多数桌面编辑仍然在导入时转换代码. It explains most of the "the cut is a fraction of a second off" surprises.