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Grid/mosaic view RTSP streams with ffmpeg based on https://trac.ffmpeg.org/wiki/Create%20a%20mosaic%20out%20of%20several%20input%20videos
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| ffmpeg -rtsp_transport tcp \ | |
| -i rtsp://smartiptv:PASSWORD@192.168.2.3:6911/Streaming/Channels/101 \ | |
| -i rtsp://smartiptv:PASSWORD@192.168.2.3:6911/Streaming/Channels/201 \ | |
| -i rtsp://smartiptv:PASSWORD@192.168.2.3:6911/Streaming/Channels/301 \ | |
| -i rtsp://smartiptv:PASSWORD@192.168.2.3:6911/Streaming/Channels/401 \ | |
| -filter_complex " | |
| nullsrc=size=1920x1080 [base]; | |
| [0:v] setpts=PTS-STARTPTS, scale=960x540 [upperleft]; | |
| [1:v] setpts=PTS-STARTPTS, scale=960x540 [upperright]; | |
| [2:v] setpts=PTS-STARTPTS, scale=960x540 [lowerleft]; | |
| [3:v] setpts=PTS-STARTPTS, scale=960x540 [lowerright]; | |
| [base][upperleft] overlay=shortest=1 [tmp1]; | |
| [tmp1][upperright] overlay=shortest=1:x=960 [tmp2]; | |
| [tmp2][lowerleft] overlay=shortest=1:y=540 [tmp3]; | |
| [tmp3][lowerright] overlay=shortest=1:x=960:y=540 | |
| " \ | |
| -c:v libx264 -preset superfast -crf 18 -f matroska - | ffplay - |
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