ffmpeg 推流

单个摄像头

ffmpeg -i rtsp://admin:888888@192.168.38.22:554/stream1 -c copy -f rtsp rtsp://127.0.0.1:8554/video

两路合成一路

ffmpeg -i rtsp://admin:admin123456@192.168.38.6:554 -i rtsp://admin:admin123456@192.168.38.19:554 -filter_complex "nullsrc=size=1280x480 [base];[0:v] scale=640x480 [left]; [1:v] scale=640x480 [right];[base][left] overlay=shortest=1 [tmp1];[tmp1][right] overlay=shortest=1:x=640" -an -vcodec h264 -preset:v ultrafast -b:v 512k -f rtsp rtsp://127.0.0.1:8554/video

四路合并一路

ffmpeg -i rtsp://admin:admin123456@192.168.38.6:554 -i rtsp://admin:admin123456@192.168.38.19:554 -i rtsp://admin:admin123456@192.168.38.91:554 -i rtsp://admin:888888@192.168.38.22:554/stream1 -filter_complex "nullsrc=size=640x480 [base];[0:v] setpts=PTS-STARTPTS, scale=320x240 [upperleft]; [1:v] setpts=PTS-STARTPTS, scale=320x240 [upperright];[2:v] setpts=PTS-STARTPTS, scale=320x240 [lowerleft];[3:v] setpts=PTS-STARTPTS, scale=320x240 [lowerright];[base][upperleft] overlay=shortest=1 [tmp1];[tmp1][upperright] overlay=shortest=1:x=320 [tmp2]; [tmp2][lowerleft] overlay=shortest=1:y=240 [tmp3]; [tmp3][lowerright] overlay=shortest=1:x=320:y=240"  -f rtsp rtsp://127.0.0.1:8554/video

ffmpeg -i rtsp://admin:admin123456@192.168.38.6:554 -i rtsp://admin:admin123456@192.168.38.19:554 -i rtsp://admin:admin123456@192.168.38.91:554 -i rtsp://admin:888888@192.168.38.22:554/stream1 -filter_complex "nullsrc=size=1280x720 [base];[0:v] setpts=PTS-STARTPTS, scale=640x360 [upperleft]; [1:v] setpts=PTS-STARTPTS, scale=640x360 [upperright];[2:v] setpts=PTS-STARTPTS, scale=640x360 [lowerleft];[3:v] setpts=PTS-STARTPTS, scale=640x360 [lowerright];[base][upperleft] overlay=shortest=1 [tmp1];[tmp1][upperright] overlay=shortest=1:x=640 [tmp2]; [tmp2][lowerleft] overlay=shortest=1:y=360 [tmp3]; [tmp3][lowerright] overlay=shortest=1:x=640:y=360"  -f rtsp rtsp://127.0.0.1:8554/video

海康摄像机rtsp地址格式(官方最新版)https://blog.csdn.net/renhui1112/article/details/107000278?spm=1001.2101.3001.6661.1&utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1.pc_relevant_antiscanv2&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1.pc_relevant_antiscanv2&utm_relevant_index=1