ffmpeg not creating thumbnails

General Discussion
1

I need help with ffmpeg installation.

i have installed/compiled ffmpeg from source. while compiling, i could not do it with --enable-libogg.

After installation, i am able to upload videos but it does not create thumbnails for uploaded videos at all.

i need help fixing this problem.

Here is an example link:

http://ushow.bislinks.com

2

it is discussed here with examples
http://www.flashcomguru.com/index.cfm/2006/4/25/ffmpegthumbs

3

This is the error i get when i type ffmpeg on command line through ssh

ffmpeg: symbol lookup error: ffmpeg: undefined symbol: avformat_alloc_context

4

Thanks. I am not an expert. i dont do the ffmpeg coding myself at the moment but am using phpmotion

5

This is the tutorial i used to install ffmpeg and related stuff:

http://www.crucialp.com/resources/tutorials/server-administration/how-to-install-ffmpeg-ffmpeg-php-mplayer-mencoder-flv2tool-LAME-MP3-Encoder-libog.php

under ffmpeg configure, this tutorial says to use command:
“./configure --enable-libmp3lame --enable-libogg --enable-libvorbis --disable-mmx --enable-shared”
BUT i could not use “–enable-libogg”, so i removed and followed the rest of the instructions exactly as per the above tutorial.

it was working fine for sometime (creating thumbnails was working fine) but after a few auto updates(with youm -y update), the thumbnail creation stopped working.

6

there should be clues in your logfiles…
you can compare the output and see if a line such as this -ss 00:00:01 -t 00:00:01 -s 120x90 -r 1 -f is on there