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FFmpeg
Notes Cutting small sections To extract only a small segment in the middle of a movie, it can be used in combination with -t which specifies the duration, like -ss 60 -t 10 to capture from second 60 to 70. Or you can use the -to option to specify an out point, like -ss 60 -to 70 to capture from second 60 to 70. -t and -to are mutually exclusive. If you use both, -t will be used. Note that if you specify -ss before -i only, the timestamps will be reset to zero, so -t and -to have not the same effect. If you want to keep the original timestamps, add the -copytsoption. The first command will cut from 00:01:00 to 00:03:00 (in the original), using the faster seek.
The second command will cut from 00:01:00 to 00:02:00, as intended, using the slower seek. The third command will cut from 00:01:00 to 00:02:00, as intended, using the faster seek. ffmpeg -ss 00:01:00 -i video.mp4 -to 00:02:00 -c copy cut.mp4 ffmpeg -i video.mp4 -ss 00:01:00 -to 00:02:00 -c copy cut.mp4 ffmpeg -ss 00:01:00 -i video.mp4 -to 00:02:00 -c copy -copyts cut.mp4 http://trac.ffmpeg.org/wiki/Seeking 具体用法参考: ffmpeg参数中文详细解释 详细的使用说明（英文）： http://ffmpeg.org/ffmpeg.html https://ffmpeg.zeranoe.com/builds/ https://dl.pconline.com.cn/download/53703.html https://blog.csdn.net/class_brick/article/details/82893967 https://blog.csdn.net/weixin_38372482/article/details/79703703 |
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