代码示例

# coding=utf-8

import os

import subprocess

import datetime

import json, pprint

import re, time

import threading

import random

import shutil

class FFmpeg:

def __init__(self, editvdo, addlogo=None, addmusic=None,

addvdohead=None, addvdotail=None):

self.editvdo = editvdo

self.addlogo = addlogo

self.addmusic = addmusic

self.addvdohead = addvdohead

self.addvdotail = addvdotail

self.vdo_time, self.vdo_width, self.vdo_height, self.attr_dict = self.get_attr()

self.editvdo_path = os.path.dirname(editvdo)

self.editvdo_name = os.path.basename(editvdo)

def get_attr(self):

"""

获取视频属性参数

:return:

"""

strcmd = r'ffprobe -print_format json -show_streams -i "{}"'.format(self.editvdo)

status, output = subprocess.getstatusoutput(strcmd)

agrs = eval(re.search('{.*}', output, re.S).group().replace("\n", "").replace(" ", ''))

streams = agrs.get('streams', [])

agrs_dict = dict()

[agrs_dict.update(x) for x in streams]

vdo_time = agrs_dict.get('duration')

vdo_width = agrs_dict.get('width')

vdo_height = agrs_dict.get('height')

attr = (vdo_time, vdo_width, vdo_height, agrs_dict)

return attr

def edit_head(self, start_time, end_time, deposit=None):

"""

截取指定长度视频

:param second: 去除开始的多少秒

:param deposit: 另存为文件

:return: True/Flase

"""

if None == deposit:

deposit = self.editvdo_path+'/'+'edit_head'+self.editvdo_name

start = time.strftime('%H:%M:%S', time.gmtime(start_time))

end = time.strftime('%H:%M:%S', time.gmtime(end_time))

strcmd = 'ffmpeg -i "{}" -vcodec copy -acodec copy -ss {} -to {} "{}" -y'.format(

self.editvdo, start, end, deposit)

result = subprocess.run(args=strcmd, stdout=subprocess.PIPE, shell=True)

if os.path.exists(deposit):

os.remove(self.editvdo)

os.rename(deposit, self.editvdo)

return True

else:

return False

def edit_logo(self, deposit=None):

"""

添加水印

:param deposit:添加水印后另存为路径，为空则覆盖

:return: True/False

"""

if None == deposit:

deposit = self.editvdo_path+'/'+'edit_logo'+self.editvdo_name

strcmd = r'ffmpeg -i "{}" -vf "movie=\'{}\' [watermark];[in] ' \

r'[watermark] overlay=main_w-overlay_w-10:10 [out]" "{}"'.format(

self.editvdo, self.addlogo, deposit)

result = subprocess.run(args=strcmd, stdout=subprocess.PIPE, shell=True)

if os.path.exists(deposit):

os.remove(self.editvdo)

os.rename(deposit, self.editvdo)

return True

else:

return False

def edit_music(self, deposit=None):

if None == deposit:

deposit = self.editvdo_path+'/'+'edit_music'+self.editvdo_name

strcmd = r'ffmpeg -y -i "{}" -i "{}" -filter_complex "[0:a] ' \

r'pan=stereo|c0=1*c0|c1=1*c1 [a1], [1:a] ' \

r'pan=stereo|c0=1*c0|c1=1*c1 [a2],[a1][a2]amix=duration=first,' \

r'pan=stereo|c0

r'-map "[a]" -map 0:v -c:v libx264 -c:a aac ' \

r'-strict -2 -ac 2 "{}"'.format(self.editvdo, self.addmusic, deposit)

result = subprocess.run(args=strcmd, stdout=subprocess.PIPE, shell=True)

if os.path.exists(deposit):

os.remove(self.editvdo)

os.rename(deposit, self.editvdo)

return True

else:

return False

def edit_rate(self, rete=30, deposit=None):

"""

改变帧率

:param rete: 修改大小帧率

:param deposit: 修改后保存路径

:return:

"""

if None == deposit:

deposit = self.editvdo_path+'/'+'edit_music'+self.editvdo_name

strcmd = r'ffmpeg -i "{}" -r {} "{}"' % (self.editvdo, rete, deposit)

result = subprocess.run(args=strcmd, stdout=subprocess.PIPE, shell=True)

if os.path.exists(deposit):

os.remove(self.editvdo)

os.rename(deposit, self.editvdo)

return True

else:

return False

def edit_power(self, power='1280x720', deposit=None):

"""

修改分辨率

:param power: 分辨率

:param deposit: 修改后保存路径，为空则覆盖

:return:

"""

if None == deposit:

deposit = self.editvdo_path+'/'+'edit_power'+self.editvdo_name

strcmd = r'ffmpeg -i "{}" -s {} "{}"'.format(self.editvdo, power, deposit)

result = subprocess.run(args=strcmd, stdout=subprocess.PIPE, shell=True)

if os.path.exists(deposit):

os.remove(self.editvdo)

os.rename(deposit, self.editvdo)

return True

else:

return False

def rdit_marge(self, vdo_head, vdo_tail, deposit=None):

if None == deposit:

deposit = self.editvdo_path+'/'+'rdit_marge'+self.editvdo_name

with open(self.editvdo_path+'/'+'rdit_marge.txt', 'w', encoding='utf-8') as f:

f.write("file '{}' \nfile '{}' \nfile '{}'" .format(

vdo_head, self.editvdo, vdo_tail))

strcmd = r'ffmpeg -f concat -safe 0 -i "{}" -c copy "{}"'.format(

self.editvdo_path + '/' + 'rdit_marge.txt', deposit)

result = subprocess.run(args=strcmd, stdout=subprocess.PIPE, shell=True)

if os.path.exists(deposit):

os.remove(self.editvdo)

os.rename(deposit, self.editvdo)

return True

else:

return False

# ffmpeg - i input.mkv - filter_complex "[0:v]setpts=0.5*PTS[v];[0:a]atempo=2.0[a]" - map"[v]" - map"[a]" output.mkv

test = FFmpeg(r"D:\vdio\4.mp4")

pass

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