I am trying to setup a Shell Script to work within an automator watch folder...
Everything works with the exception of the Run Shell Scrip portion...
Essentially when a file shows up in the watch folder, it runs the shell scrip which calls FFMPEG and then will move the file to an archive folder for safe keeping. However right now automator is telling me everything worked but now file is being created.
I have the Shell set to /bin/sh and Pass input set to as arguments
Here is my script:
for f in "$#"
do
name=$(basename "$f")
dir=$(dirname "$f")
ffmpeg -i "$f" -b 250k -strict experimental -deinterlace -vcodec h264 -acodec aac "$dir/mp4/${name%.*}.mp4"
echo "$dir/mp4/${name%.*}.mp4"
done
it does echo the correct filename, but does not actually run ffmpeg
I have tried adding -exec before it like I have seen in some scripts but still nothing...
FFmpeg searches STDIN while it is running. This is to allow the user to hit q to stop encoding, among other tasks. This could cause a problem with a script. Perhaps to workaround try this:
# notice --+
# |
# v
ffmpeg -nostdin -i "$f" -b 250k -strict experimental -deinterlace \
-vcodec h264 -acodec aac "$dir/mp4/${name%.*}.mp4"
mysterious error with ffmpeg on OSX
Not sure if it is because I am running on a Mac OS X Server but I imagine it is, I had to include the absolute path to ffmpeg...which fixed it
for f in "$#"
do
name=$(basename "$f")
dir=$(dirname "$f")
/opt/local/bin/ffmpeg -i "$f" -b 250k -strict experimental -deinterlace -vcodec h264 -acodec aac "$dir/mp4/${name%.*}.mp4"
echo "$dir/mp4/${name%.*}.mp4"
done
Related
I'd like to convert all .mp4 movies in a folder and delete the old one afterwards.
Does anyone have a hint? I've been trying for hours.
The only thing I found is:
How to make ffmpeg delete the original file after changing containers? (using a send to bat file)
my idea:
ffmpeg -i *.mp4 -c:v libx264 -b:v 1.5M -c:a aac *.mp4
It asks if files can be overwritten, but then it doesn't:https://pastebin.com/tJtWpm2n
In ffmpeg you can't directly write to the same file you're currently reading from, but one thing you can do instead is write to a temporary file, then replace the original if ffmpeg converted successfully.
for f in *.mp4; do
ffmpeg -i "${f}" -c:v libx264 -b:v 1.5M -c:a aac "tmp_${f}" && mv "tmp_${f}" "${f}"
done
So ffmpeg reads from variable ${f} containing the original filename matched in the *.mp4 pattern and writes to tmp_${f}, then && tests ffmpeg exited successfully before replacing the original file with mv.
You might also want to ensure "tmp_${f}" does not exist first, which only takes a few more steps.
for f in *.mp4; do
tmpf=$(mktemp -p ./ -t "tmp.XXXXXXXXXX.${f##*.}") # can now be extended for any file extension
ffmpeg -i "${f}" -c:v libx264 -b:v 1.5M -c:a aac "${tmpf}" && mv "${tmpf}" "${f}"
done
ok i have this and it works but it's slow
for i in *.mov;
do name=`echo "$i" | cut -d'.' -f1`
echo "$name"
ffmpeg -i "$i" "${name}.mp4"
done
I want it to convert with these ffmpeg options
ffmpeg -i movie.mov -vcodec copy -acodec copy out.mp4
Parameter expansion is sufficient; you don't need pipelines involving cut.
for i in *.mov; do
name=${i%%.mov} # i=foo.mov => name=foo
ffmpeg -i "$i" "$name.mp4"
done
Untested, but you should be able to do them in parallel with GNU Parallel if it's too slow and you have a multicore CPU:
parallel ffmpeg -i {} -vcodec copy -acodec copy {.}.mp4 ::: *.mov
If you want to see what it would do first, without actually doing anything:
parallel --dry-run ffmpeg -i {} -vcodec copy -acodec copy {.}.mp4 ::: *.mov
Note: On macOS, install these two packages simply with homebrew using:
brew install ffmpeg
brew install parallel
Use:
for i in *.mov; do ffmpeg -i "$i" -c copy "${i%.*}.mp4"; done
-c copy is the same as -vcodec copy -acodec copy.
Adapted from How do you convert an entire directory with ffmpeg?
Using trial and error I am using the following script on an OSX, to bulk convert a whole folder full of mp3 files, to mp4, by looping a specific video file:
for i in *.mp3; do /usr/local/bin/ffmpeg -stream_loop -1 -i /path_to_filename.mp4 -c copy -v 0 -f nut - | /usr/local/bin/ffmpeg -thread_queue_size 10K -i - -i "$i" -c copy -map 0:v -map 1:a -shortest "$(basename "$i" )".mp4 ; done; for f in *.mp3.mp4; do mv -v "$f" "${f/.mp3.mp4/.mp4}"; done
How can I also print/add/burn the mp3 filename, without the extension (.mp3), as an additional video layer at the bottom of the generated video screen, and with the added difficulty of word wrapping the text if is too long?
This command makes a temporary SRT file for the subtitles filter which will automatically deal with the placement and word wrapping:
for i in *.mp3; do echo "1" > subs.srt; echo "00:00:00,000 --> 10:00:00,000" >> subs.srt; echo "${i%.*}" >> subs.srt; ffmpeg -stream_loop -1 -i video.mp4 -i "$i" -filter_complex "[0:v]subtitles=subs.srt:force_style=Alignment=3,format=yuv420p[v]" -map "[v]" -map 1:a -c:v libx264 -c:a copy -shortest -movflags +faststart "${i%.*}.mp4"; done
Running the command in the directory containing the file allows avoidance of basename and creates a simpler command.
MP3 is not universally supported in MP4. Consider changing -c:a copy to -c:a aac if your player does not support it. But I suspect you're targeting YouTube which will be fine with MP3 in MP4.
The three instances of echo are inefficient but effective in avoiding any newline issues. Using one instance of printf would be more optimal, but I don't have access to macOS to test its printf implementation.
Want to convert my m4a files into mp3 files using a script. It would save some time... I have over 100 GB of music files.
OS: OSX10.14 / Terminal vs Bash script
I can run ffmpeg -v 5 -y -i musicFile.m4a -acodec libmp3lame -ac 2 -b:a 320k musicFile.mp3 from the terminal. It converts the file and I can see and play the file from itunes.
When I run the same from a bash script it fails to convert.
ffmpeg -v 5 -y -i $ENTRY_FILE -acodec libmp3lame -ac 2 -b:a 320k $MP3NAME
My ipod nano just died and I got a new mp3 player. Now I need to convert my itunes files from AAC format to MP3.
ffmpeg is an established video and music file converter.
When I run it from the bash script I tried a few things.
I added ./ in front of the file, that failed because it was installed under /usr/local/bin and not under the same directory.
I also tried sh ffmpeg... and that gave me the cannot execute a binary file.
#!/usr/bin/env bash
# convert m4a file to mp3
set -e
file_convert() {
ENTRY_FILE=$(printf %q "${entry}")
FILE_NAME=$(printf %q "$(basename "${entry}")")
DIR=$(printf %q "$(dirname "${entry}")")
NAME="${FILE_NAME%.*}"
EXT="${FILE_NAME##*.}"
MP3NAME="${DIR}/${NAME}.mp3"
printf "%*s%s\n" $((indent+2)) '' "$ENTRY_FILE"
printf "%*s\tNew File :\t%s\n" $((indent+2)) '' "$MP3NAME"
if [ $EXT == "m4a" ]
then
printf "%*s\tConverting: \t%s\n" $((index+2)) '' "$ENTRY_FILE"
ffmpeg -v 5 -y -i $ENTRY_FILE -acodec libmp3lame -ac 2 -b:a 320k $MP3NAME
fi
}
walk() {
local indent="${2:-0}"
printf "\n%*s%s\n\n" "$indent" '' "$1"
# If the entry is a file convert it
for entry in "$1"/*; do [[ -f "$entry" ]] && file_convert; done
# If the entry is a directory recurse
for entry in "$1"/*; do [[ -d "$entry" ]] && walk "$entry" $((indent+2)); done
}
# If the path is empty use the current, otherwise convert relative to absolute; Exec walk()
[[ -z "${1}" ]] && ABS_PATH="${PWD}" || pushd "${1}" && ABS_PATH="${PWD}"
walk "${ABS_PATH}"
popd
echo
I expect >./aacToMp3.sh ./music to traverses the music directory and convert each m4a file to .mp3.
It is walking the file system and printing out correct files, with the spaces escaped. When it hits the ffmpeg line it halts. I put the set -e at the top of the file to force it to fail if the command fails. Without the set -e it happily walks all the music files and prints them to the stdout.
If you have lots of files to process and a decent multi-core CPU and fast disk, I would recommend GNU Parallel which you can install with homebrew:
brew install parallel
Then make a copy of a few files in a test directory and try:
parallel --dry-run ffmpeg -v 5 -y -i {} -acodec libmp3lame -ac 2 -b:a 320k {.}.mp3 ::: *.m4a
If that looks good, replace --dry-run with --progress.
If that looks good, you can (make a backup first) and do the whole lot:
find path/to/music -name "*.m4a" -print0 | parallel -0 --progress ffmpeg -v 5 -y -i {} -acodec libmp3lame -ac 2 -b:a 320k {.}.mp3
Thanks for all the input.
After a while I ended up writing all the ffmpeg lines to a script file. Glad I did. I was able to quickly scan the file and see some errors and fix them.
This is what I came up with.
Basically I am writing straight text to stdout and directing it to a file. Which I converted to a shell script to convert each file. One at a time. Ran the generated script overnight.
file_convert() {
ENTRY_FILE=$(printf %q "${entry}")
FILE_NAME=$(printf %q "$(basename "${entry}")")
DIR=$(printf %q "$(dirname "${entry}")")
NAME="${FILE_NAME%.*}"
EXT="${FILE_NAME##*.}"
MP3NAME="${DIR}/${NAME}.mp3"
if [ $EXT == "m4a" ]
then
printf 'echo "Converting %s ..."\n' "$FILE_NAME"
printf 'ffmpeg -v 5 -y -i %s -acodec libmp3lame -ac 2 -b:a 320k %s\n\n' "$ENTRY_FILE" "$MP3NAME"
fi
}
The output looked like.
#!/usr/bin/env bash
echo "Converting 03\ It\'s\ Not\ My\ Time.m4a ..."
ffmpeg -v 5 -y -i /Users/arthuranderson/Documents/work/projects/mp3Convert/music/3\ Doors\ Down/3\ Doors\ Down\ \(Bonus\ Track\ Version\)/03\ It\'s\ Not\ My\ Time.m4a -acodec libmp3lame -ac 2 -b:a 320k /Users/arthuranderson/Documents/work/projects/mp3Convert/music/3\ Doors\ Down/3\ Doors\ Down\ \(Bonus\ Track\ Version\)/03\ It\'s\ Not\ My\ Time.mp3
echo "Converting 01\ Down.m4a ..."
ffmpeg -v 5 -y -i /Users/arthuranderson/Documents/work/projects/mp3Convert/music/311/Greatest\ Hits\ \'93-\'03/01\ Down.m4a -acodec libmp3lame -ac 2 -b:a 320k /Users/arthuranderson/Documents/work/projects/mp3Convert/music/311/Greatest\ Hits\ \'93-\'03/01\ Down.mp3
Mark I will try parallel when I purchase some more music next time.
Thanks everyone!
I have a pretty simple shell script and after doing the first two jobs, it just stops and sits there, doesnt do anything, it doesnt seem to matter what the third job is, if I switch the order etc, it will not finish it.
Any ideas would be great...
Here is my shell script
for f in "$#"
do
name=$(basename "$f")
dir=$(dirname "$f")
/opt/local/bin/ffmpeg -i "$f" -y -b 250k -deinterlace -vcodec vp8 -acodec libvorbis -nostdin "$dir/webm/${name%.*}.webm"
/opt/local/bin/ffmpeg -i "$f" -y -b 250k -strict experimental -deinterlace -vcodec h264 -acodec aac -nostdin "$dir/mp4/${name%.*}.mp4"
/opt/local/bin/ffmpeg -i "$f" -y -ss 00:00:15.000 -deinterlace -vcodec mjpeg -vframes 1 -an -f rawvideo -s 720x480 "$dir/img/${name%.*}.jpg"
done
Your final ffmpeg line needs -nostdin.
Running FFMPEG from Shell Script /bin/sh