ffmpeg, bash, and multiple inut files.

ed_v · January 16, 2012, 2:11pm

I am trying to use ffmpeg to create a video file from a series of still images.
the files are named image10000,jpg through 10150.jpg.
I type the command


ffmpeg -i image%d -sameq test.mpg

and ffmpeg reports


image%d.jpg: No such file or directory

any help appreciated.

ab · January 16, 2012, 2:22pm

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

What are you expecting to happen with that %d? ‘bash’ is going to need
to interpret that, and apparently it does not like it. If nothing else
put an asterisk ‘*’ in its place to see if that at least gives a valid
list of files and if then ffmpeg can handle them.

Good luck.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.15 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
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=dKut
-----END PGP SIGNATURE-----

ed_v · January 16, 2012, 2:39pm

I put the widlcard ‘*’ in its place and get a output file but it doesn’t contain any desired images, it is only 20kb in size and plays as a black image.
I would expect the video to be at least a meg and a half in size.
the instructions come straight from the ffmpeg site.
I don’t remember if I have used this technique before… but there is a history of me trying it in my .bash_history
FFmpeg FAQ

First, rename your pictures to follow a numerical sequence. For example, img1.jpg, img2.jpg, img3.jpg,… Then you may run:
ffmpeg -f image2 -i img%d.jpg /tmp/a.mpg

I am puzzled.
…
now that I am posting this I think I know what the problem is…
the files do not start at 00001.
let me rename them…

ed_v · January 16, 2012, 2:45pm

yes that was the problem the files did not start at 1 or 00001.

ab · January 16, 2012, 3:28pm

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Thanks for posting back the result.

Good luck.

On 01/16/2012 06:46 AM, ed v wrote:
>
> yes that was the problem the files did not start at 1 or 00001.
>
>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.15 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
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=CftS
-----END PGP SIGNATURE-----

ed_v · January 16, 2012, 3:56pm

I used this to create links to the originals…


x=1; for i in *jpg; do counter=$(printf %05d $x); echo "$i" ; ln -s "$i" img"$counter".jpg; x=$(($x+1)); done

it worked enough that ffmpeg was able to create the desired movie with 151 frames.

atftb · January 16, 2012, 9:59pm

On 01/16/2012 04:16 AM, ed v wrote:
>
> I am trying to use ffmpeg to create a video file from a series of still
> images.
> the files are named image10000,jpg through 10150.jpg.
> I type the command
>
> Code:
> --------------------
>
> ffmpeg -i image%d -sameq test.mpg
>
> --------------------
>
> and ffmpeg reports
>
> Code:
> --------------------
>
> image%d.jpg: No such file or directory
>
> --------------------
>
> any help appreciated.

A few years ago I captured a .jpg image from the Mendenhall Glacier
website with wget every 5 minutes (during daylight hours). I saved them
in month/day directories, then ran the following scripts to concatenate
them into an .mpg file.

The first script created a .mpg file for each day. The 2nd script
combined each day’s mpg into a single file.

Modify to suit your needs.

HTH…

…Kevin

make_movies.sh

#!/bin/bash

A Bash script to step through the webcam directory

and convert the series of .jpg images into an mpeg sequence.

Author: Kevin Miller, Juneau Alaska

Source: http://www.fs.fed.us/r10/tongass/webcam.jpg

Created: December 21, 2005

Webcam image source directory

WEBCAM_DIR=/local/video/GlacierCam.input/

Go to the webcam image source directory and check

for a month dir

If it exists, change to that directory,

else create it and go there.

cd $WEBCAM_DIR

Loop for each month

for MONTHDIR in *
do

Check that the entry is a directory, not a file

If a directory, cd into it.

if -d $MONTHDIR ] ; then
cd $MONTHDIR

Loop for each day’s directory entry.

Check that the entry is a directory, not a file

If a directory, cd into it.

for DAYDIR in *
do
if -d $DAYDIR ] ; then
cd $DAYDIR
pwd
if -f $MONTHDIR-$DAYDIR.mpg ] ; then
rm $MONTHDIR-$DAYDIR.mpg
fi
convert *.jpg m2v:$MONTHDIR-$DAYDIR.mpg
cd …
fi
done
cd …
fi
done

exit

cat_mpg.sh

#!/bin/bash

A Bash script to step through the webcam directory

and convert the series of .jpg images into an mpeg sequence.

Author: Kevin Miller, Juneau Alaska

Source: http://www.fs.fed.us/r10/tongass/webcam.jpg

Created: December 21, 2005

WEBCAM_DIR=/home/mkm/webcam/

WEBCAM_DIR=/local/video/GlacierCam.done/
OUTDIR=/local/video/GlacierCam.out/

Go to the webcam capture dir and check for a month dir

If it exists, change to that directory, else create it

and go there.

cd $WEBCAM_DIR

Loop for each month

for MONTHDIR in *
do

Check that the entry is a directory, not a file

If a directory, cd into it.

if -d $MONTHDIR ] ; then
cd $MONTHDIR

Loop for each day’s directory entry.

Check that the entry is a directory, not a file

If a directory, cd into it.

for DAYDIR in *
do
if -d $DAYDIR ] ; then
cd $DAYDIR
pwd
cat $MONTHDIR-$DAYDIR.mpg >> $OUTDIR/glacier.mpg
cd …
fi
done
cd …
fi
done

exit

…Kevin

Kevin Miller - http://www.alaska.net/~atftb
Juneau, Alaska
In a recent survey, 7 out of 10 hard drives preferred Linux
Registered Linux User No: 307357, http://linuxcounter.net