Writing a find command with ffmpeg to process videos
I want to write a command or script to find all my .mkv videos larger than 3Gb, then run ffmpeg to make them smaller (720p) and change the extension to mp4. I have it working except the file ends up with .mkv.mp4 extension.
I'm also sure there is probably a much better way of doing this, such as with a script. Here is what I have come up with:
find '/home/username/Videos/' -type f -size +3G -exec ffmpeg -i "{}" -c:v libx264 -c:a copy -acodec copy -vf scale="trunc(oh*a/2)*2:720" -preset superfast -crf 24 -b:v 400k "{}.mp4" ;
I would also like to have the output files to a directory like /home/username/Videos/Changed, and then delete the original .mkv.
Can anyone help teach me the best method to do this?
command-line scripts video ffmpeg find
asked Jan 21 at 23:18
ticotexasticotexas
386
add a comment |
I want to write a command or script to find all my .mkv videos larger than 3Gb, then run ffmpeg to make them smaller (720p) and change the extension to mp4. I have it working except the file ends up with .mkv.mp4 extension.
I'm also sure there is probably a much better way of doing this, such as with a script. Here is what I have come up with:
find '/home/username/Videos/' -type f -size +3G -exec ffmpeg -i "{}" -c:v libx264 -c:a copy -acodec copy -vf scale="trunc(oh*a/2)*2:720" -preset superfast -crf 24 -b:v 400k "{}.mp4" ;
I would also like to have the output files to a directory like /home/username/Videos/Changed, and then delete the original .mkv.
Can anyone help teach me the best method to do this?
command-line scripts video ffmpeg find
asked Jan 21 at 23:18
ticotexasticotexas
386
add a comment |
I want to write a command or script to find all my .mkv videos larger than 3Gb, then run ffmpeg to make them smaller (720p) and change the extension to mp4. I have it working except the file ends up with .mkv.mp4 extension.
I'm also sure there is probably a much better way of doing this, such as with a script. Here is what I have come up with:
find '/home/username/Videos/' -type f -size +3G -exec ffmpeg -i "{}" -c:v libx264 -c:a copy -acodec copy -vf scale="trunc(oh*a/2)*2:720" -preset superfast -crf 24 -b:v 400k "{}.mp4" ;
I would also like to have the output files to a directory like /home/username/Videos/Changed, and then delete the original .mkv.
Can anyone help teach me the best method to do this?
command-line scripts video ffmpeg find
asked Jan 21 at 23:18
ticotexasticotexas
386
I want to write a command or script to find all my .mkv videos larger than 3Gb, then run ffmpeg to make them smaller (720p) and change the extension to mp4. I have it working except the file ends up with .mkv.mp4 extension.
I'm also sure there is probably a much better way of doing this, such as with a script. Here is what I have come up with:
find '/home/username/Videos/' -type f -size +3G -exec ffmpeg -i "{}" -c:v libx264 -c:a copy -acodec copy -vf scale="trunc(oh*a/2)*2:720" -preset superfast -crf 24 -b:v 400k "{}.mp4" ;
I would also like to have the output files to a directory like /home/username/Videos/Changed, and then delete the original .mkv.
Can anyone help teach me the best method to do this?
command-line scripts video ffmpeg find
command-line scripts video ffmpeg find
asked Jan 21 at 23:18
ticotexasticotexas
386
asked Jan 21 at 23:18
ticotexasticotexas
386
asked Jan 21 at 23:18
ticotexasticotexas
386
asked Jan 21 at 23:18
ticotexasticotexas
386
asked Jan 21 at 23:18
ticotexasticotexas
386
386
add a comment |
add a comment |
1 Answer
1
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oldest
votes
IMHO, the "Good" way to do this is to break it into two steps:
- Find the big files.
- "Fix" them.
And, I'd put step 2 into a bash script, stored in /home/username/bin/fixvideos
My find command would then look like:
find '/home/username/Videos/' -type f -name '*.mkv' -size +3G -print0 |
xargs -0 --no-run-if-empty /home/username/fixvideos
and, the script in /home/username/fixvideos is something like:
#!/bin/bash
# handle "-v" or "--verbose" as optional 1st parameter, the rest are "*.mkv" files
# which will be rescaled and converted to ".mp4", using ffmpeg
declare -i verbose=0
#
if [[ "$1" = "-v" ]] || [[ "$1" = "--verbose" ]] ; then
verbose=1
shift
fi
while [[ $# -ne 0 ]] ; do
# the base name, without the extension
bname="${1//.mkv}"
oname="$bname.mkv"
if [[ $verbose -ne 0 ]] ; then
echo "Reading $1, writing $oname" >&2
fi
ffmpeg -i "$1" -c:v libx264 -c:a copy -acodec copy
-vf scale="trunc(oh*a/2)*2:720" -preset superfast
-crf 24 -b:v 400k "$oname"
#
# shift all the filenames down so the next file is actually next
shift
done
exit 0
answered Jan 22 at 5:58
waltinatorwaltinator
22.6k74169
Thanks @waltinator! It's great. It will take me some time to learn exactly how it works. I changed this lineoname="$bname.mkv"tooname="$bname.mp4"and it worked. How can I have it save the new .mp4s to a different folder, like /home/username/Videos/Changed?
– ticotexas
Jan 22 at 19:43
add a comment |
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1 Answer
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active
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1 Answer
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active
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active
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active
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votes
IMHO, the "Good" way to do this is to break it into two steps:
- Find the big files.
- "Fix" them.
And, I'd put step 2 into a bash script, stored in /home/username/bin/fixvideos
My find command would then look like:
find '/home/username/Videos/' -type f -name '*.mkv' -size +3G -print0 |
xargs -0 --no-run-if-empty /home/username/fixvideos
and, the script in /home/username/fixvideos is something like:
#!/bin/bash
# handle "-v" or "--verbose" as optional 1st parameter, the rest are "*.mkv" files
# which will be rescaled and converted to ".mp4", using ffmpeg
declare -i verbose=0
#
if [[ "$1" = "-v" ]] || [[ "$1" = "--verbose" ]] ; then
verbose=1
shift
fi
while [[ $# -ne 0 ]] ; do
# the base name, without the extension
bname="${1//.mkv}"
oname="$bname.mkv"
if [[ $verbose -ne 0 ]] ; then
echo "Reading $1, writing $oname" >&2
fi
ffmpeg -i "$1" -c:v libx264 -c:a copy -acodec copy
-vf scale="trunc(oh*a/2)*2:720" -preset superfast
-crf 24 -b:v 400k "$oname"
#
# shift all the filenames down so the next file is actually next
shift
done
exit 0
answered Jan 22 at 5:58
waltinatorwaltinator
22.6k74169
Thanks @waltinator! It's great. It will take me some time to learn exactly how it works. I changed this lineoname="$bname.mkv"tooname="$bname.mp4"and it worked. How can I have it save the new .mp4s to a different folder, like /home/username/Videos/Changed?
– ticotexas
Jan 22 at 19:43
add a comment |
IMHO, the "Good" way to do this is to break it into two steps:
- Find the big files.
- "Fix" them.
And, I'd put step 2 into a bash script, stored in /home/username/bin/fixvideos
My find command would then look like:
find '/home/username/Videos/' -type f -name '*.mkv' -size +3G -print0 |
xargs -0 --no-run-if-empty /home/username/fixvideos
and, the script in /home/username/fixvideos is something like:
#!/bin/bash
# handle "-v" or "--verbose" as optional 1st parameter, the rest are "*.mkv" files
# which will be rescaled and converted to ".mp4", using ffmpeg
declare -i verbose=0
#
if [[ "$1" = "-v" ]] || [[ "$1" = "--verbose" ]] ; then
verbose=1
shift
fi
while [[ $# -ne 0 ]] ; do
# the base name, without the extension
bname="${1//.mkv}"
oname="$bname.mkv"
if [[ $verbose -ne 0 ]] ; then
echo "Reading $1, writing $oname" >&2
fi
ffmpeg -i "$1" -c:v libx264 -c:a copy -acodec copy
-vf scale="trunc(oh*a/2)*2:720" -preset superfast
-crf 24 -b:v 400k "$oname"
#
# shift all the filenames down so the next file is actually next
shift
done
exit 0
answered Jan 22 at 5:58
waltinatorwaltinator
22.6k74169
Thanks @waltinator! It's great. It will take me some time to learn exactly how it works. I changed this lineoname="$bname.mkv"tooname="$bname.mp4"and it worked. How can I have it save the new .mp4s to a different folder, like /home/username/Videos/Changed?
– ticotexas
Jan 22 at 19:43
add a comment |
IMHO, the "Good" way to do this is to break it into two steps:
- Find the big files.
- "Fix" them.
And, I'd put step 2 into a bash script, stored in /home/username/bin/fixvideos
My find command would then look like:
find '/home/username/Videos/' -type f -name '*.mkv' -size +3G -print0 |
xargs -0 --no-run-if-empty /home/username/fixvideos
and, the script in /home/username/fixvideos is something like:
#!/bin/bash
# handle "-v" or "--verbose" as optional 1st parameter, the rest are "*.mkv" files
# which will be rescaled and converted to ".mp4", using ffmpeg
declare -i verbose=0
#
if [[ "$1" = "-v" ]] || [[ "$1" = "--verbose" ]] ; then
verbose=1
shift
fi
while [[ $# -ne 0 ]] ; do
# the base name, without the extension
bname="${1//.mkv}"
oname="$bname.mkv"
if [[ $verbose -ne 0 ]] ; then
echo "Reading $1, writing $oname" >&2
fi
ffmpeg -i "$1" -c:v libx264 -c:a copy -acodec copy
-vf scale="trunc(oh*a/2)*2:720" -preset superfast
-crf 24 -b:v 400k "$oname"
#
# shift all the filenames down so the next file is actually next
shift
done
exit 0
answered Jan 22 at 5:58
waltinatorwaltinator
22.6k74169
IMHO, the "Good" way to do this is to break it into two steps:
- Find the big files.
- "Fix" them.
And, I'd put step 2 into a bash script, stored in /home/username/bin/fixvideos
My find command would then look like:
find '/home/username/Videos/' -type f -name '*.mkv' -size +3G -print0 |
xargs -0 --no-run-if-empty /home/username/fixvideos
and, the script in /home/username/fixvideos is something like:
#!/bin/bash
# handle "-v" or "--verbose" as optional 1st parameter, the rest are "*.mkv" files
# which will be rescaled and converted to ".mp4", using ffmpeg
declare -i verbose=0
#
if [[ "$1" = "-v" ]] || [[ "$1" = "--verbose" ]] ; then
verbose=1
shift
fi
while [[ $# -ne 0 ]] ; do
# the base name, without the extension
bname="${1//.mkv}"
oname="$bname.mkv"
if [[ $verbose -ne 0 ]] ; then
echo "Reading $1, writing $oname" >&2
fi
ffmpeg -i "$1" -c:v libx264 -c:a copy -acodec copy
-vf scale="trunc(oh*a/2)*2:720" -preset superfast
-crf 24 -b:v 400k "$oname"
#
# shift all the filenames down so the next file is actually next
shift
done
exit 0
answered Jan 22 at 5:58
waltinatorwaltinator
22.6k74169
edited Jan 22 at 6:04
answered Jan 22 at 5:58
waltinatorwaltinator
22.6k74169
answered Jan 22 at 5:58
waltinatorwaltinator
22.6k74169
answered Jan 22 at 5:58
waltinatorwaltinator
22.6k74169
22.6k74169
Thanks @waltinator! It's great. It will take me some time to learn exactly how it works. I changed this lineoname="$bname.mkv"tooname="$bname.mp4"and it worked. How can I have it save the new .mp4s to a different folder, like /home/username/Videos/Changed?
– ticotexas
Jan 22 at 19:43
add a comment |
Thanks @waltinator! It's great. It will take me some time to learn exactly how it works. I changed this lineoname="$bname.mkv"tooname="$bname.mp4"and it worked. How can I have it save the new .mp4s to a different folder, like /home/username/Videos/Changed?
– ticotexas
Jan 22 at 19:43
Thanks @waltinator! It's great. It will take me some time to learn exactly how it works. I changed this line
oname="$bname.mkv" to oname="$bname.mp4" and it worked. How can I have it save the new .mp4s to a different folder, like /home/username/Videos/Changed?– ticotexas
Jan 22 at 19:43
Thanks @waltinator! It's great. It will take me some time to learn exactly how it works. I changed this line
oname="$bname.mkv" to oname="$bname.mp4" and it worked. How can I have it save the new .mp4s to a different folder, like /home/username/Videos/Changed?– ticotexas
Jan 22 at 19:43
add a comment |
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