使用ffmpeg从视频创建缩略图 [英] Create thumbnail from video using ffmpeg

问题描述

在将视频上传到CDN时，我需要从视频创建缩略图.

我一直在搜索找到的播放视频

在使用ffmpeg上传视频时，有人可以帮助我创建缩略图

解决方案

我不知道在上传时制作屏幕截图的方法，但是我确实知道以后如何做.

最简单的代码是:

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

上传文件后运行此脚本.如果截屏是在视频开始处拍摄的，则只需要很短的时间. (例如第一分钟).

我认为在仍在上传文件的同时无法截屏.

删除了-f image2，因为ffmpeg认为它是正确的

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

解决方案

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

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