Stream 是 Microsoft 的视频共享服务，用户可以在其中与同一组织中的其他人安全地查看、上传和共享视频。它仅适用于Microsoft 365订阅者，并且基于浏览器，即没有独立的Stream桌面应用程序。
虽然Microsoft Stream绝对不是一个强大的视频编辑器(robust video editor)，但它确实允许您非常轻松地修剪视频的开头和/或结尾。如果修剪是您需要对视频进行的唯一一种编辑，那么Stream就可以正常工作。
另一方面，如果您想要进行更密集的视频编辑，您最好使用更好的视频编辑器(better video editor)，它可以处理诸如配乐、从视频中间剪切、添加 b-roll 和之间的过渡等元素剪辑。
如何在Microsoft Stream中查找您的(Microsoft Stream)视频(Videos)
首先，在Microsoft Stream(Microsoft Stream)上查找或上传要修剪的视频。您从Microsoft 365平台录制的(Microsoft 365)视频(Videos)会自动保存到您的Microsoft Stream，包括您录制的任何Microsoft Teams会议或您使用 Stream 制作的 屏幕录制。(screen recordings)
- 在 Web 浏览器中登录您的Microsoft 365帐户，通过页面左上角的棋盘图标打开应用列表，然后选择Stream。
- 接下来，从菜单中选择我的内容(My Content)，然后选择视频。(Videos.)
您将看到保存到Stream的所有视频的列表。
如何将视频(Video)上传到Microsoft Stream
如果要将视频从您的设备上传到Microsoft Stream以便进行修剪，请按照以下步骤操作。
- 选择创建(Create)菜单并选择上传视频(Upload Video)。
- 注意警告。
- 将(Drag)您要上传的视频文件拖到流(Stream)浏览器窗口中，或选择链接以浏览(browse )您的文件并选择您要上传的视频。
- 上传视频后，您可以添加一些详细信息。为您的视频命名(Name)和描述(Description)。如果要启用自动隐藏字幕，请设置Video Language。
- 您还可以在此处选择要用于视频缩略图(Thumbnail)的图像。
- (Set)为您的视频设置权限。请注意，因为视频会自动设置为您组织中的任何人都可以观看！如果您想限制查看，请取消选中该框。(Uncheck)您可以选择与特定人员、Microsoft Teams上的特定频道(Channel)或组共享您的视频。
- 接下来，为您的视频设置选项。(Options)其中包括打开或关闭评论、打开噪音(Noise)抑制、使用自动生成的字幕或上传字幕文件。
- 当一切看起来都不错时，选择发布(Publish)按钮。
（注意：您可以稍后通过访问我的内容(My content)>视频(Videos )并选择更新视频详细信息(Update video details )图标来编辑所有这些详细信息、权限和选项。）
在Microsoft Stream(Microsoft Stream)中修剪视频
请务必注意，要使用Stream中的修剪功能，您必须使用受支持的浏览器。目前，支持的浏览器包括：
- (Apple Safari 10)Mac OS 10.10或更高版本上的Apple Safari 10或更高版本
- (Google Chrome)Windows 7或更高版本或Mac OS 10.10或更高版本上的Google Chrome
- Windows 10 上的 Microsoft Edge
- (Firefox)Windows 8.1或更高版本上的Firefox 42 或更高版本
现在是时候找到您的视频并进行修剪了。
- 首先，访问我的内容(My Content )>视频( Videos)并找到您要修剪的视频。选择视频右侧的更多(More)/省略号图标。(Ellipsis)
- 选择修剪视频(Trim video)。
- 流将打开您的视频。您将看到带有后退、播放和快进控件的视频播放器。下面(Beneath)是视频的时间线。您可以在此处修剪视频的结尾。
- 左右拖动(Drag)粉色修剪手柄以设置修剪点。本质上(right )，出现在(before )左侧(left )修剪手柄之前或右侧修剪手柄之后(after )的任何时间线部分都将被丢弃。
- 顶部带有圆圈的粉红色垂直线称为播放头(playhead)。视频播放时，播放头会显示您在时间轴中的位置。如果要为播放头设置修剪点，请使用设置修剪起点(Set trim start point )和设置修剪终点(Set trim end point)按钮。他们会将修剪点捕捉到播放头在时间线上的任何位置。
- 您可以使用放大滑块放大和缩小时间线。放大将帮助您在设置修剪起点和终点时更加精确。
- 如果您对视频感到满意，请选择屏幕顶部的应用按钮。(Apply)Stream将永久丢弃修剪开始点之前和修剪结束点之后的视频部分，因此如果您认为以后可能需要这些丢弃的部分，请确保您保存了未修剪的视频版本。
修剪后的视频可用的时间取决于视频的大小和比特率。准备好 360p 版本的视频后，Stream将让您（和其他人）可以播放该视频。
随着更高分辨率版本的编码，您的视频将以可用的最高分辨率播放。转到我的内容(My content)>视频(Videos)，找到您修剪的视频。
(Videos)工作场所的(Workplace Are)视频将继续存在
在虚拟会议成为常态而非例外的世界中，让利益相关者可以访问会议记录和其他视频演示，即使他们无法参加会议，他们也可以随时了解业务流程和决策。从会议记录的开始和结束减少不重要的闲聊和空闲时间只是修剪视频有价值的一个例子。
当然，您也可以使用Stream修剪其他类型的视频。培训视频、产品演示和入职视频都可以从修剪中受益。
How to Trim a Video with Microsoft Stream
Stream is Microsoft’s video-sharing service where users can view, υpload, and share videos sеcurely with other people in the same оrganizаtion. It’s only available to Microsoft 365 subscribers, and it’s browser-based—i.e., there’s no stand-alone Stream desktop app.
While Microsoft Stream is definitely not a robust video editor, it does allow you to trim the beginning and/or end of a video quite easily. If trimming is the only kind of editing you need to do to your video, Stream will work just fine.
If, on the other hand, you want to do more intensive video editing, you’ll be better off with a better video editor that can handle elements like soundtracks, cutting from the middle of a video, adding b-roll, and transitions between clips.
How to Find Your Videos in Microsoft Stream
To begin, find or upload the video you want to trim on Microsoft Stream. Videos that you record from within the Microsoft 365 platform are automatically saved to your Microsoft Stream, including any Microsoft Teams meetings that you have recorded or screen recordings you have made with Stream.
- Log into your Microsoft 365 account in a web browser, open the list of apps via the checkerboard icon in the top-left corner of the page, and select Stream.
- Next, select My Content from the menu and then select Videos.
You will see a list of all the videos saved to your Stream.
How to Upload a Video to Microsoft Stream
If you want to upload a video from your device to Microsoft Stream so you can trim it, follow these steps.
- Select the Create menu and choose Upload Video.
- Note the warning.
- Drag the video file you want to upload into the Stream browser window or select the link to browse your files and select the video you want to upload.
- Once your video has uploaded, you can add some details. Give your video a Name and Description. If you want to enable automatic closed captioning, set the Video Language.
- This is also where you can pick which image to use for your video’s Thumbnail.
- Set the permissions for your video. Watch out, because videos are automatically set to be viewable by anyone in your organization! Uncheck that box if you want to restrict viewing. You can opt to share your video with specific people, a particular Channel on Microsoft Teams, or a group.
- Next, set the Options for your video. These include turning comments on or off, turning on Noise suppression, using auto generated captions, or uploading a subtitles file.
- When everything looks good, select the Publish button.
(Note: You can edit all these details, permissions, and options later by visiting My content > Videos and selecting the Update video details icon.)
Trimming Your Video in Microsoft Stream
It’s important to note that in order to use the trimming feature in Stream, you must use a supported browser. Currently, supported browsers include:
- Apple Safari 10 or higher on Mac OS 10.10 or higher
- Google Chrome on Windows 7 or higher or on Mac OS 10.10 or higher
- Microsoft Edge on Windows 10
- Firefox version 42 or higher on Windows 8.1 or higher
Now it’s time to find your video and trim it.
- First, visit My Content > Videos and find the video you want to trim. Select the More/Ellipsis icon to the right of your video.
- Select Trim video.
- Stream will open your video. You’ll see the video player with rewind, play, and fast forward controls. Beneath that is the video’s timeline. That’s where you can trim off the ends of your video.
- Drag the pink trim handles left and right to set the trim points. Essentially, any part of the timeline that appears before the left trim handle or after the right trim handle will be discarded.
- The vertical pink line with the circle at the top is called the playhead. As the video plays, the playhead will show you where you are in the timeline. If you want to set a trim point to the playhead, use the Set trim start point and Set trim end point buttons. They will snap the trim point to wherever the playhead is on the timeline.
- You can zoom in and out on the timeline by using the magnifying slider. Zooming in will help you be more precise as you set your trim start and end points.
- When you’re satisfied with your video, select the Apply button at the top of the screen. Stream will permanently discard the parts of your video before the trim start point and after the trim end point, so make sure you have an untrimmed version of the video saved if you think you might need those discarded parts later.
The time it will take for your trimmed video to become available will depend on the video’s size and bitrate. As soon as a 360p version of the video is ready, Stream will make the video available for you (and others) to play.
As higher resolution versions are encoded, your video will play in the highest resolution available. Find your trimmed video by going to My content > Videos.
Videos in the Workplace Are Here to Stay
In a world where virtual meetings are the norm, not the exception, giving stakeholders access to meeting recordings and other video presentations allows them to stay in the loop on business processes and decisions, even if they weren’t able to attend the meeting. Cutting unimportant chit chat and dead time from the beginning and end of meeting recordings is just one example of when trimming videos can be valuable.
And, of course, you can use Stream to trim other kinds of videos, too. Training videos, product demonstrations, and onboarding videos can all benefit from trimming.
