Any ffmpeg GUI that has a video preview cropping?

[imdaman]

I've been using ffmpeg in command line but I was wondering if there a GUI available that has a video preview so I can see exactly where I can crop the video instead of me using a media player to determine the start and end time and plug into command line.

[Selur]

not unless it's not using ffmpeg/ffplay but the libav libraries (or mplayer or vfw or gstreamer or ... as backend for preview).
Unlike mplayer, ffplay doesn't have a 'slave' mode which allows you to control it from another program and embed the preview into a given Window.
So a strictly speaking a GUI which just uses ffmpeg won't be able to do what you ask for.
As a side note:
a. ffmpeg has a cropdetect option
b. there are tons of GUIs which have a crop preview (using a media player seems to be one of the methods which calling for mistakes to happen)

Cu Selur

[poisondeathray]

xmediarecode is probably close to what you want