Python實現(xiàn)將視頻按照時間維度剪切

更新時間：2022年12月27日 14:11:54 作者：劍客阿良_ALiang

這篇文章主要為大家詳細(xì)介紹了如何利用Python實現(xiàn)將視頻按照時間維度進(jìn)行剪切，文中的示例代碼講解詳細(xì)，感興趣的小伙伴可以跟隨小編一起了解一下

前言

本文提供將視頻按照時間維度進(jìn)行剪切的工具方法，一如既往的實用主義。

環(huán)境依賴

ffmpeg環(huán)境安裝，可以參考文末補充內(nèi)容

本文主要使用到的不是ffmpeg，而是ffprobe。

ffmpy安裝：

pip install ffmpy -i https://pypi.douban.com/simple

代碼

不廢話，上代碼。

#!/user/bin/env python
# coding=utf-8
"""
@project : csdn
@author  : 劍客阿良_ALiang
@file   : cut_video.py
@ide    : PyCharm
@time   : 2022-12-27 10:22:48
"""
 
import os
import uuid
from ffmpy import FFmpeg
 
 
# 視頻裁剪
# start_time格式樣例：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))

代碼說明

1、cut_video_by_time方法參數(shù)分別為，輸入視頻地址、輸出目錄地址、剪切起始時間點、剪切持續(xù)時間。

2、起始時間的格式要注意，給了幾個格式樣式：0:01、10:11，前面為分鐘后面為秒。

3、做了簡單的視頻格式校驗，如需添加，可以自己看著來。

4、最終視頻名使用uuid避免重復(fù)。

5、剪切的視頻時長不能超過視頻時間。

驗證一下

準(zhǔn)備的視頻信息。

執(zhí)行結(jié)果

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