Create thumbnail from video using ffmpeg

问题

I need to create a thumbnail from video while uploading it to CDN.

I have been searching for this found this but I am not able to get the screen shot even after following steps.

I am using jwplayer for playing video

Can someone help me to create thumbnail while uploading video using ffmpeg

回答1:

I do not know a way to make a screenshot WHILE uploading, but I do know how to do it after.

The simplest code is:

ffmpeg -i input.mp4 -ss 00:00:01.000 -vframes 1 output.png

Run this script after you have uploaded the file. It should take only a short amount of time if the screenshot is taken in the beginning of the video. (first minute e.g.).

I do not think it is possible to take a screenshot while the file is still being uploaded.

Edit: removed -f image2 as it is guessed correct by ffmpeg

来源：https://stackoverflow.com/questions/27145238/create-thumbnail-from-video-using-ffmpeg