Attachment_fu

rubyonrails-talk
1

Hello, I have a functionality where i need to upload an image, So for that i am using attachment_fu + acts_as_state_machine,. and every thing is working fine. But now from the view front i want to display as an thumbnail image just like youtube but the problem is that how do i crop a image from a video?

Thanks for any help

Thanks Abhis

2

Robert Walker wrote:

Maybe ffmpeg would help: http://ffmpeg.org/

An excerpt from the ffmpeg docs:

For extracting images from a video:

ffmpeg -i foo.avi -r 1 -s WxH -f image2 foo-%03d.jpeg

This will extract one video frame per second from the video and will output them in files named `foo-001.jpeg', `foo-002.jpeg', etc. Images will be rescaled to fit the new WxH values.

If you want to extract just a limited number of frames, you can use the above command in combination with the -vframes or -t option, or in combination with -ss to start extracting from a certain point in time. ... ... `-ss position' Seek to given time position in seconds. hh:mm:ss[.xxx] syntax is also supported. ... ... `-vframes number' Set the number of video frames to record.

This looks to me like it should work well for your needs.

3

Thanks robert for sharing the ideas will defiantly implement it.