Python实现将视频按照时间维度剪切
剑客阿良_ALiang 人气:0前言
本文提供将视频按照时间维度进行剪切的工具方法,一如既往的实用主义。
环境依赖
ffmpeg环境安装,可以参考文末补充内容
本文主要使用到的不是ffmpeg,而是ffprobe。
ffmpy安装:
pip install ffmpy -i http://pypi.douban.com/simple
代码
不废话,上代码。
#!/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))
代码说明
1、cut_video_by_time方法参数分别为,输入视频地址、输出目录地址、剪切起始时间点、剪切持续时间。
2、起始时间的格式要注意,给了几个格式样式:0:01、10:11,前面为分钟后面为秒。
3、做了简单的视频格式校验,如需添加,可以自己看着来。
4、最终视频名使用uuid避免重复。
5、剪切的视频时长不能超过视频时间。
验证一下
准备的视频信息。
执行结果
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
结果视频信息
知识补充
windows ffmpeg安装部署
1.安装包下载
作为音视频处理重要软件ffmpeg,是一定要装好的。
2.解压安装包
下载安装包后解压到需要的目录。
3.配置环境变量
找到控制面板 -> 点击系统 -> 点击高级系统设置 -> 点击环境变量
配置解压或文件夹路劲到Path变量中。
一直确认后,点击win+r打开cmd。
输入ffmpeg -i命令验证一下是否部署成功。
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