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Old 08-21-2009, 07:25 PM   #1
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ffmpeg thumbnail problem

I have installed FFmpeg and videos are converted like it should be, but the problem is when I want to create a thumbnail I get always something as this:

When I use mplayer I get this:
Error opening/initializing the selected video_out (-vo) device.

With this command: mplayer /home/vid.avi -ss 1 -nosound -vo jpegutdir=thumbs -frames 3

The command mplayer -vo help returns this:
MPlayer SVN-r29543-4.1.2 (C) 2000-2009 MPlayer Team
Available video output drivers:
fbdev Framebuffer Device
fbdev2 Framebuffer Device
cvidix console VIDIX
null Null video output
mpegpes MPEG-PES to DVB card
yuv4mpeg yuv4mpeg output for mjpegtools
tga Targa output
md5sum md5sum of each frame

So the Jpeg is not installed, but how can I install this? Or how can I make it work to create thumbnails with ffmpeg?
Old 08-23-2009, 03:38 PM   #2
John VV
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letting us KNOW what distro you are using would help
jpg support IS INSTALLED no matter what distro you are using

also informing us adout your hardware will help , as in what is your 3d card -- if you have one -- ?
Old 08-23-2009, 03:50 PM   #3
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what command did you use for ffmpeg ?

This should work:

 ffmpeg -i movie.avi test.jpg
you can also try '-f image2 -vcodec mjpeg' as options if the above doesn't work.


ffmpeg, thumbnail

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