Python调用ffmpeg开源视频处理库，批量处理视频
代码示例
#coding=utf-8
importos
importsubprocess
importdatetime
importjson,pprint
importre,time
importthreading
importrandom
importshutil
classFFmpeg:
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)
defget_attr(self):
"""
获取视频属性参数
:return:
"""
strcmd=r'ffprobe-print_formatjson-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)forxinstreams]
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)
returnattr
defedit_head(self,start_time,end_time,deposit=None):
"""
截取指定长度视频
:paramsecond:去除开始的多少秒
:paramdeposit:另存为文件
:return:True/Flase
"""
ifNone==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"{}"-vcodeccopy-acodeccopy-ss{}-to{}"{}"-y'.format(
self.editvdo,start,end,deposit)
result=subprocess.run(args=strcmd,stdout=subprocess.PIPE,shell=True)
ifos.path.exists(deposit):
os.remove(self.editvdo)
os.rename(deposit,self.editvdo)
returnTrue
else:
returnFalse
defedit_logo(self,deposit=None):
"""
添加水印
:paramdeposit:添加水印后另存为路径，为空则覆盖
:return:True/False
"""
ifNone==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)
ifos.path.exists(deposit):
os.remove(self.editvdo)
os.rename(deposit,self.editvdo)
returnTrue
else:
returnFalse
defedit_music(self,deposit=None):
ifNone==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
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