create video thumbnail using ffmpeg

You can use the open source ffmpeg program to extract a frame to use as a thumbnail for a video.

Below is an exmple:

[shellprompt]# /fullpath/to/ffmpeglibrary/ffmpeg -i InputFile.FLV -vframes 1 -an -s 400×222 -ss 30 OutputFile.jpg

-i = Inputfile name
-vframes 1 = Output one frame
-an = Disable audio
-s 400×222 = Output size
-ss 30 = Grab the frame from 30 seconds into the video

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