macos 查找端口_如何在Windows和macOS中查找视频的比特率

macos 查找端口

The bitrate of a video governs how much detail a video can display. Even a high resolution video with a low bitrate will look blocky and distorted. Fortunately, it’s easy to find out the bitrate of any video on Windows or macOS.

视频的比特率决定了视频可以显示多少细节。 即使是低比特率的高分辨率视频，也会显得块状且失真。 幸运的是，很容易找出Windows或macOS上任何视频的比特率。

All other things being equal, a higher bitrate in a video results in more detailed picture quality. You can find out the bitrate of any video with tools that come built-in with both Windows and macOS.

在所有其他条件都相同的情况下，视频中更高的比特率会带来更详细的图像质量。 您可以使用Windows和macOS内置的工具找出任何视频的比特率。

NOTE: Most videos also use a variable bitrate which can change moment to moment. This method will show an overall bitrate, which is handy for determining the general quality of the video, but if you want to see how a video’s bitrate changes over time, you can use VLC for that. In addition, if you want to take a more detailed look at the properties of a video, MediaInfo is a powerful, cross-platform tool that lets you examine a file in depth.

注意：大多数视频还使用可变比特率，该比特率会随时变化。 此方法将显示总体比特率，这对于确定视频的总体质量非常有用，但是如果您想查看视频的比特率随时间变化的情况， 可以使用VLC 。 此外，如果您想更详细地了解视频的属性， MediaInfo是一个功能强大的跨平台工具，可让您深入检查文件。

If you only care about finding out a video’s bitrate, however, there’s a simple way. In Windows, right-click the file you want to examine and choose Properties.

但是，如果您只想了解视频的比特率，则有一种简单的方法。 在Windows中，右键单击要检查的文件，然后选择“属性”。

On the window that appears, click the Details tab.

在出现的窗口上，单击“详细信息”选项卡。

Under the Video section, the piece of information you’ll care about is “Total bitrate.”

在“视频”部分下，您需要关注的信息是“总比特率”。

The total bitrate will give you a general idea of the quality of your video. This is useful if you want to compare two videos that have the same resolution, or if you’re curious just how much a file has been compressed.

总比特率可让您大致了解视频质量。 如果您想比较两个具有相同分辨率的视频，或者如果您好奇要压缩多少文件，这将很有用。

To find this information on a Mac, find the video you want to examine and open it in QuickTime.

要在Mac上查找此信息，请找到要检查的视频，然后在QuickTime中打开它。

Once the video is open, press Command+I to open the Information window. Here, you’ll see an item labeled Data Rate. This will tell you the overall bitrate for your video.

视频打开后，按Command + I打开“信息”窗口。 在这里，您将看到一个标记为数据速率的项目。 这将告诉您视频的总体比特率。

Again, both Windows and macOS only show a general bitrate. Most videos you’ll see use a variable bitrate that adjusts picture quality depending on what is displayed on screen at the time. If you want to see how the bitrate changes as you watch, you can use VLC to do just that. It’s also possible that Windows or QuickTime won’t read a bitrate properly. This can sometimes happen if a video file’s metadata isn’t formatted correctly. In that case, you can use MediaInfo to find more detailed technical information.

同样，Windows和macOS都只显示一般的比特率。 您会看到的大多数视频都使用可变比特率，该比特率会根据当时屏幕上显示的内容来调整图片质量。 如果您想查看观看时比特率的变化， 可以使用VLC做到这一点 。 Windows或QuickTime也有可能无法正确读取比特率。 如果视频文件的元数据格式不正确，有时可能会发生这种情况。 在这种情况下，您可以使用MediaInfo查找更多详细的技术信息。

翻译自: https://www.howtogeek.com/323686/how-to-find-a-videos-bitrate-in-windows-and-macos/

macos 查找端口