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./ffmpeg -i rtsp://184.72.239.149/vod/mp4:BigBuckBunny_115k.mov -fflags flush_packets -max_delay 1 -an -flags -global_header -hls_time 1 -hls_list_size 3 -hls_flags delete_segments+omit_endlist -vcodec copy -y /Users/yizhichao/05.soft/ffmpeg4.0.2static/bin/hls/channel101.m3u8