[FFmpeg-user] side by side videos

[FFmichael]

Lorenzo Perone wrote
> ....
> Now they are 642px large and 1050px hight, both of them are 2:41 (mm:ss)
> long.
> Today I'm working in windows 7 64 bit using FFmpeg git-e0e8c20 64-bit
> Static
> and I've tried this string:
> 
> ffmpeg.exe -i realtime_test1.mp4 -vf "[in] scale=642:1050, pad=1284:1050
>> [left]; movie=realtime_test2.mp4, scale=642:1050; [left][right]
>> overlay=642:0 [out]" Output.mp4

Hi Lorenzo,

...looks like your only problem is that you have not labelled the [right]
branch before calling it in the overlay filter.

Eg.
ffmpeg.exe -i realtime_test1.mp4 -vf "[in] scale=642:1050, pad=1284:1050
[left]; movie=realtime_test2.mp4, scale=642:1050[right]; [left][right]
overlay=642:0 [out]" Output.mp4

Otherwise, this looks fine to me.

In regards to some of the other suggestions, I use filter_complex in
"complex" situations where i need stream selection control or multiple
outputs. Otherwise, this method is preferred by me as you do not have to
worry about stream specifiers or mapping outputs.

Michael



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