ffmpeg ffprobe ffplay

./ffprobe -print_format json -show_format -show_frames -select_streams v -i ../hhh.flv

./ffprobe -print_format json -show_format -show_packets -select_streams v -i ../hhh.flv

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原文地址：https://www.cnblogs.com/welhzh/p/4237951.html