It appears that you have managed to chop off the end of your file, and
since MPEG4 files keep their header at the end of the file nothing will
touch that file. Sure, much of the data is there, but you would have to
know a heck of a lot about it and have some very special software in
order to reconstruct it, but that still wouldn't replace whatever video
also got chopped off.
One of the utilities that I ran it though said the file should have been
closer to 152MB instead of 17MB, so you appear to have lost most of the
data too.
Brian Cluff
On 10/20/2012 10:58 AM, Jim March wrote:
Folks,
I have a broken .mp4 file on my hands that is critically important to a
political thing I'm doing.
The file is at:
https://dl.dropbox.com/u/1825088/ScytlBaltimore.mp4
I've tried using a front-end to ffmeg called "format junkie" to fix this
critter and the error it spits out is "moov atom not found". This
apparently means the data might be there, but the video format structure
does exist.
Some google-fu led me to this page:
http://vcg.isti.cnr.it/~ponchio/untrunc.php
Awesome! An open-source util that can cope with this.
Problems though...
It needs "libavformat-dev and libavcodec-dev straight from the Ubuntu
repositories" and the Quantal that I'm running (latest Ubuntu) can't
load those per Synaptic - not without a lot of dependency hell stuff
that might break FSM only knows what.
I have a VM copy of Mint 8 that might, but I can't seem to get
Virtualbox to pass it networking so that I could load those and load the
build-essentials stuff needed to compile this critter.
Can anybody help by compiling untrunc and then applying it to that data
file!? I'd be very, very grateful :(.
Thanks,
Jim
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