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FFmpeg - Is it better to scale mosaic videos at the input or the output?
The (batch) script below produces a mosaic of the nine input videos:
FFMPEG ^
-y -i "v1.mp4" -i "v2.mp4" -i "v3.mp4" -i "v4.mp4" -i "v5.mp4" -i "v6.mp4" -i "v7.mp4" -i "v8.mp4" -i "v9.mp4" ^
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1
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Scale (or center) watermark with ffmpeg to same resolution as output file
I want to have the watermark scaled to the same resolution as the output file. How do I do this?
Alternatively, how do I center the watermark in the middle of the output instead?
Here is what I have:
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