Capturing and Importing Source Clips > Analyzing clip properties and data rate
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Analyzing clip properties and data rate


Premiere includes clip analysis tools that you can use to evaluate a file in any supported format stored inside or outside a project. For example, after producing a video clip to be streamed from a Web server, you can use clip analysis tools to determine if a clip you exported has an appropriate data rate for Internet distribution.

The Properties feature provides detailed information about any clip. For video files, analyzed properties can include the file size, number of video and audio tracks, duration, average frame, audio and data rates, and compression settings. You can also use Properties to alert you to the presence of any dropped frames in a clip you just captured.

To see the properties of a clip:

1 Do one of the following:
  • If the clip is in the Project window, select it to display a subset of its properties in the top part of the window.
  • If the clip is in the Project, Monitor, or Timeline window, select it, choose File > Get Properties For, and select the filename of the clip.
  • If the clip is not yet in the project, choose File > Get Properties For > File. Locate and select the clip you want to analyze, and then click Open.

    • 2 To save the Properties window text as a text file, choose File > Save As, specify a location and filename, and click Save.

    3 To see the Data Rate Graph, click Data Rate.

    Use the data rate graph to evaluate how well the output data rate matches the requirements of your delivery medium. It charts each frame of a video file to show you the render keyframe rate, the difference between compression keyframes and differenced frames (frames that exist between keyframes), and data rate levels at each frame. The Data Rate Graph includes the following:
  • Data rate: the white line represents the average data rate.
  • Sample size: the red bars represent the sample size of each keyframed frame.
  • Differenced frames sample size: the blue bars represent the sample size of the differenced frames between compression keyframes.

    • 4 When you are finished, close the Data Rate Graph window and the Properties window.

    You can also view clip properties from a window containing a clip by right-clicking a clip (Windows) or pressing Control as you click a clip (Mac OS) and choosing Get Properties.

    Capturing and Importing Source Clips > Analyzing clip properties and data rate