Are there alternative tools or methods, outside of PHP scripting, that could be more efficient for merging videos?

Merging videos using PHP scripting can be resource-intensive and may not be the most efficient method. One alternative approach could be to use a video editing software or a dedicated video processing library that is optimized for merging videos.

// Alternative method using FFmpeg for merging videos
exec('ffmpeg -i video1.mp4 -i video2.mp4 -filter_complex "[0:v:0][0:a:0][1:v:0][1:a:0]concat=n=2:v=1:a=1[outv][outa]" -map "[outv]" -map "[outa]" output.mp4');