# 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=’1280×720′, 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