Table of contents
foreword
This article provides a tool method to cut the video according to the time dimension, as always, pragmatism.
environment dependent
For ffmpeg environment installation, you can refer to my other article: Windows ffmpeg installation and deployment_阿良的博客-CSDN Blog
This article mainly uses not ffmpeg, but ffprobe is also in the zip package in the above article.
ffmpy install:
pip install ffmpy -i https://pypi.douban.com/simplethe code
No nonsense, on the code.
#!/user/bin/env python
# coding=utf-8
"""
@project : csdn
@author : 剑客阿良_ALiang
@file : cut_video.py
@ide : PyCharm
@time : 2022-12-27 10:22:48
"""
import os
import uuid
from ffmpy import FFmpeg
# 视频裁剪
# start_time格式样例：0:00,10:18
def cut_video_by_time(video_path: str, output_dir: str, start_time: str, duration: int):
ext = os.path.basename(video_path).strip().split('.')[-1]
if ext not in ['mp4', 'avi', 'flv']:
raise Exception('format error')
result = os.path.join(output_dir, '{}.{}'.format(uuid.uuid1().hex, ext))
ff = FFmpeg(inputs={video_path: None},
outputs={
result: '-ss {} -t {} -c:v copy -c:a copy -y'.format(start_time, duration)})
print(ff.cmd)
ff.run()
return result
if __name__ == '__main__':
print(cut_video_by_time(r'E:\360MoveData\Users\huyi\Desktop\3333333.mp4', r'E:\360MoveData\Users\huyi\Desktop',
'0:10', 5))
code description
1. The parameters of the cut_video_by_time method are, respectively, the input video address, the output directory address, the cut start time point, and the cut duration.
2. Pay attention to the format of the start time. Several formats are given: 0:01, 10:11, with minutes in front and seconds in the back.
3. A simple video format verification has been done. If you need to add it, you can watch it yourself.
4. The final video name uses uuid to avoid duplication.
5. The length of the cut video cannot exceed the video time.
verify
Prepared video information.
Results of the
ffmpeg version n4.3.1-20-g8a2acdc6da Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9.3-win32 (GCC) 20200320
configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --enable-iconv --enable-zlib --enable-libxml2 --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvmaf --disable-vulkan --enable-libvorbis --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-ffnvcodec --enable-cuda-llvm --disable-libglslang --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libtwolame --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-libs=-lgomp
libavutil 56. 51.100 / 56. 51.100
libavcodec 58. 91.100 / 58. 91.100
libavformat 58. 45.100 / 58. 45.100
libavdevice 58. 10.100 / 58. 10.100
libavfilter 7. 85.100 / 7. 85.100
libswscale 5. 7.100 / 5. 7.100
libswresample 3. 7.100 / 3. 7.100
libpostproc 55. 7.100 / 55. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\360MoveData\Users\huyi\Desktop\3333333.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 2022-09-08T12:04:43.000000Z
Hw : 1
:
bitRate : 16000000
:
com.apple.quicktime.artwork: {"data":{"edittime":22,"infoStickerId":"","musicId":"","os":"windows","product":"lv","stickerId":"","videoEffectId":"","videoId":"245ba6f1-f2ab-4d70-bc77-c70ea30c171a","videoParams":{"be":0,"ef":0,"ft":0,"ma":0,"me":0,"mu":0,"re":0,"sp":0,"st":0,"te":0,"t
maxrate : 16000000
:
te_is_reencode : 1
:
encoder : Lavf58.76.100
Duration: 00:00:26.91, start: 0.000000, bitrate: 11898 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 11741 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
creation_time : 2022-09-08T12:04:43.000000Z
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 156 kb/s (default)
Metadata:
creation_time : 2022-09-08T12:04:43.000000Z
handler_name : SoundHandler
Output #0, mp4, to 'E:\360MoveData\Users\huyi\Desktop\7812f03a858f11ed8359e454e8bf1461.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
te_is_reencode : 1
:
Hw : 1
:
bitRate : 16000000
:
com.apple.quicktime.artwork: {"data":{"edittime":22,"infoStickerId":"","musicId":"","os":"windows","product":"lv","stickerId":"","videoEffectId":"","videoId":"245ba6f1-f2ab-4d70-bc77-c70ea30c171a","videoParams":{"be":0,"ef":0,"ft":0,"ma":0,"me":0,"mu":0,"re":0,"sp":0,"st":0,"te":0,"t
maxrate : 16000000
:
encoder : Lavf58.45.100
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 11741 kb/s, 30 fps, 30 tbr, 15360 tbn, 15360 tbc (default)
Metadata:
creation_time : 2022-09-08T12:04:43.000000Z
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 156 kb/s (default)
Metadata:
creation_time : 2022-09-08T12:04:43.000000Z
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 150 fps=0.0 q=-1.0 Lsize= 6607kB time=00:00:04.97 bitrate=10875.7kbits/s speed= 329x
video:6507kB audio:95kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.082792%
E:\360MoveData\Users\huyi\Desktop\7812f03a858f11ed8359e454e8bf1461.mp4
Result video information
Summarize
There is nothing to summarize, pay attention to the length of the video.
share:
Actions seem to follow feelings, but in fact actions and feelings go hand in hand. If the will controls actions, it can also indirectly control feelings. ——"The Weakness of Human Nature"
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