> On Jul 22, 2021, at 3:26 AM, Budi <[email protected]> wrote:
>
> How to extract/get some parts/clips out of a MP4 file to be
> concatenated into another new MP4 file
>
> tried to get/extract out only first 19 seconds, also a part beginning
> from 32th up to its next 37 seconds, and finally part beginning from 2
> min 29th s up to its next 99 seconds, by this:
>
> $ ffmpeg -t 19 -i Example.mp4 -ss 0:0:32 -t 37 -i Example.mp4 -ss
> 0:2:29 -t 99 -i Example.mp4 -ss 0:0:0 -c copy
> ~/Downloads/ExampleOut.mp4
> to no avail
>
> sincere help is appreciated
It looks as though you're using macOS. I’m using Big Sur 11.5. This works for
me, but I don’t seem to have the command line savvy to use named pipes, so I
wind up with 3 intermediate files in addition to the desired output file. My
source file (Example.mp4) is in ~/Downloads.
inputfileName=$(echo 'Example.mp4');/usr/local/bin/ffmpeg -i
~"/Downloads/$inputfileName" -ss 00:00:00.00 -t 00:00:19.00 -c copy -map 0
-movflags +faststart ~/Downloads/1Out.mp4;/usr/local/bin/ffmpeg -i
~"/Downloads/$inputfileName" -ss 00:00:32.00 -t 00:00:37.00 -c copy -map 0
-movflags +faststart ~/Downloads/2Out.mp4;/usr/local/bin/ffmpeg -i
~"/Downloads/$inputfileName" -ss 00:02:29.00 -t 00:01:39.00 -c copy -map 0
-movflags +faststart ~/Downloads/3Out.mp4;loggedInUser=$( scutil <<< "show
State:/Users/ConsoleUser" | awk '/Name :/ && ! /loginwindow/ { print $3 }'
);echo "file /Users/$loggedInUser/Downloads/1Out.mp4
file /Users/$loggedInUser/Downloads/2Out.mp4
file /Users/$loggedInUser/Downloads/3Out.mp4
" > ffmpegCatList;sleep 3;/usr/local/bin/ffmpeg -f concat -safe 0 -i
ffmpegCatList -c copy ~'/Downloads/ExampleOut.mp4';sleep 1
;/bin/echo '
==========================
ExampleOut.mp4 FINISHED!
==========================
';mv ffmpegCatList ~'/.Trash/‘
Laine Lee
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