ffmpeg vstack filter

ffmpeg vstack filter

-filter_complex " [0:v] [1:v] vstack=inputs=2[v] ; [0:a] [1:a]amerge[a]"

-------------explanation-----------------
[0:v] -- first file, video stream

[1:v] -- second file, video stream

[0:a] -- first file, audio stream

[1:a] -- second file, audio stream

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" [0:v][1:v]vstack=inputs=2[v]; [0:a][1:a]amerge[a]"

take first file video stream, second file video stream and put them through vstack filter with arguments (inputs=2) and name the output [v]

take first file audio stream, second file audio stream and put them through amerge filter and name the output [a]

Note: the use of ';' character as a delimiter

Note: hstack filter argument 'shortest=1' was not used

this option/argument would have terminated the video to the duration of the shorter video

-filter_complex " [0:v][1:v]vstack=inputs=2[v]; [0:a][1:a]amerge[a]" \

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XMR/Monero

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