ffmpeg推流

流媒体服务端参考mediamtx流媒体服务器测试

推流命令 ffmpeg -re -i 3.mp4 -c copy -f flv -rtmp_app live -rtmp_playpath class rtmp://localhost:1935

等同于 ffmpeg -re -i 3.mp4 -c copy -f flv rtmp://localhost:1935/live/class

• rtmp_app: 发布点live
• rtmp_playpath: 流名称class

播放视频 ffplay -i rtmp://localhost:1935/live/class

播放流转存为文件 ffmpeg -rtmp_app live -rtmp_playpath class -i rtmp://localhost:1935 -c copy -f flv output.flv

等同于 ffmpeg -i rtmp://localhost:1935/live/class -c copy -f flv output.flv

使用复杂滤镜拆分视频及音频

ffmpeg.exe -i 1.mp4 -t 30 -filter_complex "split=2[s0][s1];[s0]scale=640x480[s0];[s1]scale=1280x720[s1]" -map "[s0]" 640x480.mp4 -map "[s1]" 1280x720.mp4

ffmpeg -i 1.mp4 -filter_complex "[0:v]split=3[v1][v2][v3];[v1]scale=320:240[v1s];[v2]hflip[v2h]" -map "[v1s]" -t 30 output1.mp4 -map "[v2h]" -t 30 output2.mp4 -map "[v3]" -t 30 output3.mp4

ffmpeg -i 1.mp4 -filter_complex "[0:v]split=3[v1][v2][v3];[v1]scale=320:240[v1s];[v2]hflip[v2h];[0:a]asplit=3[a1][a2][a3]" -map "[v1s]" -map "[a1]" -t 30 output1.mp4 -map "[v2h]" -map "[a2]" -t 30 output2.mp4 -map "[v3]" -map "[a3]" -t 30 output3.mp4