53 lines
1.6 KiB
Bash
Executable File
53 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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# usage :
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# ./reunite.sh video-name.part1.mp4
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filename=$(basename -- "$1")
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extension="${filename##*.}"
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filename=$(echo "${filename%.*}" | sed -r 's/(.+)\.part[0-4]{1}$/\1/g')
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# Extract audio track from one of the parts
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ffmpeg -i $1 -acodec copy $filename.aac
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# Let's use more explicit names for manipulation
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mv $filename.part1.$extension even_odd.mp4
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mv $filename.part2.$extension even_even.mp4
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mv $filename.part3.$extension odd_odd.mp4
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mv $filename.part4.$extension odd_even.mp4
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# Rotate the 4 sub-videos clockwise in order to merge them
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ffmpeg -i even_odd.mp4 -vf "transpose=1" even_90cw_odd.mp4
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ffmpeg -i even_even.mp4 -vf "transpose=1" even_90cw_even.mp4
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ffmpeg -i odd_odd.mp4 -vf "transpose=1" odd_90cw_odd.mp4
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ffmpeg -i odd_even.mp4 -vf "transpose=1" odd_90cw_even.mp4
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# Merge the 4 sub-videos into 2
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ffmpeg -i even_90cw_odd.mp4 -i even_90cw_even.mp4 -filter_complex "[0][1]vstack,il=l=i:c=i" even_90cw.mp4
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ffmpeg -i odd_90cw_odd.mp4 -i odd_90cw_even.mp4 -filter_complex "[0][1]vstack,il=l=i:c=i" odd_90cw.mp4
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# Rotate the 2 videos back counter-clockwise
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ffmpeg -i odd_90cw.mp4 -vf "transpose=2" odd.mp4
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ffmpeg -i even_90cw.mp4 -vf "transpose=2" even.mp4
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# Merge the 2 videos
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ffmpeg -i odd.mp4 -i even.mp4 -filter_complex "[0][1]vstack,il=l=i:c=i" $filename.merged_no_sound.mp4
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# Merge video with audio track
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ffmpeg -i $filename.aac -i $filename.merged_no_sound.mp4 $filename.merged.mp4
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# Remove manipulation files
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rm even_odd.mp4 even_even.mp4 odd_odd.mp4 odd_even.mp4 even_90cw_odd.mp4 even_90cw_even.mp4 odd_90cw_odd.mp4 odd_90cw_even.mp4 even_90cw.mp4 odd_90cw.mp4 odd.mp4 even.mp4 $filename.merged_no_sound.mp4 $filename.aac
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