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看到掘金有主题月活动，忽然间想起来以前为了帮公司运营搞视频合并 写过一个程序 今天翻出来 作为我的参加文章 使用moviepy以及subprocess 来进行音频和视频的操作

from moviepy.editor import VideoFileClip, concatenate_videoclips, AudioClip, AudioFileClip
import os, re, random
from natsort import natsorted
import time
from itertools import product
import subprocess
from pydub import AudioSegment
import random
class Compose():
    def __init__(self):
        self.audios = 'test.mp3'
        self.audiolist = []
        self.videopath = ""
        self.vdpathlist = []
        self.count = 0
        self.hechengpath = ""
        self.is_make_hunhe=False
    def check_num(self, arr):  # 过滤mp3
        pattern = re.compile('[0-9]+')
        for v in arr:
            match = pattern.findall(v)
            if match and 'mp3' not in v:
                return True
            else:
                return False
    def takevideo(self):  # 分组mp3
        try:
            os.remove(self.audios)
        except:
        self.hechengpath = os.getcwd()
        videolist = []
        for root, dirs, names in os.walk(self.hechengpath):
            if self.check_num(names):
                self.vdpathlist.append(root)
                names = [root + '\\' + name for name in names]
                videolist.append(names)
            for name in names:
                if "mp3" in name:
                    fromdir = os.path.join(root, name)
                    self.audiolist.append(fromdir)
        return videolist
    def video_add_mp3(self, times, file_name, mp3_file):  # 给视频添加声音
        outfile_name = file_name.split('.')[0] + '-end.mp4'
        cmd = "ffmpeg -i %s -i %s  -t 7.1 -y %s"
        subprocess.call(cmd % (mp3_file, file_name, times, outfile_name))
        # subprocess.call("ffmpeg -i %s -i %s -t %s -y %s" % (mp3_file, file_name, times, outfile_name))
        return outfile_name
    def takename(self, i):  # 拼接视频名字
        strs = "".join(list(i))
        for j in self.vdpathlist:
            strs = strs.replace(j, "").strip('\\').replace(".mov", "").replace(".MOV", "").replace(".mp4", "").replace(".mp3", "")
        strs = strs.replace("\\", "+")
        return strs
    def synthetic_two_audio(self):  # 把两个声音混合
        if self.is_make_hunhe:
            if len(self.audiolist) > 1:
                mp3a = self.audiolist[0]
                mp3b = self.audiolist[1]
                subprocess.call(
                    "ffmpeg -i %s -i %s -filter_complex amerge -ac 2 -c:a libmp3lame -q:a 4 %s" % (mp3a, mp3b, self.audios))
            else:
                self.audios = self.audiolist[0]
        else:
            self.audios=random.choice(self.audiolist)
    def hecheng(self):  # 合成声音
        lists = self.takevideo()
        for i in product(*lists):
            self.synthetic_two_audio()
            videopath = self.takename(i) + ".mp4"
            videolist = [VideoFileClip(j, audio=True).resize([1080, 1920]) for j in i]
            finalclip = concatenate_videoclips(videolist, method="compose")
            times = finalclip.duration
            finalclip.write_videofile(filename=videopath, codec='libx264', bitrate=('1000000', '2000000',), threads=5)
            self.video_add_mp3(times, videopath, self.audios)
            # os.remove(videopath)
if __name__ == "__main__":
    cmp = Compose()
    cmp.hecheng()
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