: Ensure your camera software is up to date to patch known vulnerabilities. Using a VPN
ffmpeg -i cam1.mp4 -i cam2.mp4 -i cam3.mp4 -i cam4.mp4 \ -filter_complex "[0:v]setpts=PTS,scale=960x540[v0];[1:v]setpts=PTS,scale=960x540[v1];[2:v]setpts=PTS,scale=960x540[v2];[3:v]setpts=PTS,scale=960x540[v3];[v0][v1][v2][v3]xstack=inputs=4:layout=0_0|w0_0|0_h0|w0_h0,format=yuv444p" \ -crf 14 -preset slower -pix_fmt yuv444p multicameraframe_extra_quality.mkv extra+quality+inurl+multicameraframe+mode+motion+google+work