1. How to use?

ffmpeg -i {original_video} -ss {h:mm:ss} -to {h:mm:ss} -vcodec copy -acodec copy {savename_video}

2. Example

나는 sample2.avi 라는 이름의 비디오에서 45초부터 2분 45초 구간, 2분 가량의 비디오를 만들려고 한다.

그리고, 그 비디오를 sample22.avi 라는 이름으로 저장하려고 한다.
그러면, 아래와 같이 커맨드를 입력해주면 된다. (ffmpeg이 설치되어 있어야 함.)

ffmpeg -i sample2.avi -ss 0:00:45 -to 0:02:45 -vcodec copy -acodec copy sample22.avi

3. Result

(base) bolero @ ~ $ ffmpeg -i sample2.avi -ss 0:00:45 -to 0:02:45 -vcodec copy -acodec copy sample22.avi
ffmpeg version 5.1.2 Copyright (c) 2000-2022 the FFmpeg developers
  built with Apple clang version 14.0.0 (clang-1400.0.29.102)
  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/5.1.2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-neon
  libavutil      57. 28.100 / 57. 28.100
  libavcodec     59. 37.100 / 59. 37.100
  libavformat    59. 27.100 / 59. 27.100
  libavdevice    59.  7.100 / 59.  7.100
  libavfilter     8. 44.100 /  8. 44.100
  libswscale      6.  7.100 /  6.  7.100
  libswresample   4.  7.100 /  4.  7.100
  libpostproc    56.  6.100 / 56.  6.100
Input #0, avi, from 'sample2.avi':
  Metadata:
    software        : Lavf58.76.100
  Duration: 00:06:41.93, start: 0.000000, bitrate: 5145 kb/s
  Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p, 960x540 [SAR 1:1 DAR 16:9], 5139 kb/s, 30 fps, 30 tbr, 30 tbn
Output #0, avi, to 'sample22.avi':
  Metadata:
    software        : Lavf58.76.100
    ISFT            : Lavf59.27.100
  Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p, 960x540 [SAR 1:1 DAR 16:9], q=2-31, 5139 kb/s, 30 fps, 30 tbr, 30 tbn
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
frame= 3590 fps=0.0 q=-1.0 Lsize=   78477kB time=00:02:00.00 bitrate=5357.3kbits/s speed=4.19e+03x
video:78385kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.117198%
(base) bolero @ ~ $

잘 편집된 비디오를 확인할 수 있다.