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#!/usr/bin/env python3

# _*_ coding:utf-8 _*_

import subprocess as sp

import os

import logging

import time

logging.basicConfig(filename='info.log', level=logging.WARNING)

def findfile():

videoformat=(".mp4", ".ts", ".flv", ".mov") #添加视频格式

w = os.walk("./")

for root, dirs, files in w:

for name in files:

if name.endswith(videoformat):

with open('list', 'a') as f:

f.write(os.path.join(root, name))

f.write("\n")

def transcode(filepath, outputdir):

command = ["ffmpeg", "-y", "-i", filepath,

"-loglevel", "error",

"-metadata", "service_name='Push Media'",

"-metadata", "service_provider='Push Media'",

"-c:v", "h264",

"-profile:v", "high", "-level:v", "4.0",

"-x264-params", "nal-hrd=cbr",

"-b:v", "4M", "-minrate", "4M", "-maxrate", "4M", "-bufsize", "2M",

"-preset", "ultrafast",

"-bf", "2", #Bframe

"-keyint_min", "25", "-g", "25", "-sc_threshold", "0",

"-s", "1920x1080",

"-aspect", "16:9",

"-r", "25",

"-c:a", "aac",

"-b:a", "192K", "-ar", "48000",

"-f", "mpegts", "-muxrate", "5M",

outputdir + ".ts"

]

pipe = sp.Popen(command, stdout=sp.PIPE, stderr=sp.STDOUT)

out, err = pipe.communicate()

if pipe.returncode == 0:

logging.info("command '%s' succeeded, returned: %s"

% (command, str(out)))

else:

logging.error("command '%s' failed, exit-code=%d error = %s"

% (command, pipe.returncode, str(err)))

def main():

# 生成视频列表文件

findfile()

time.sleep(10)

with open('list', 'r') as f:

line = f.readline()

# 逐行读取文件，并新建输出路径

while line:

# 输出入文件路径

filepath = line.strip() # 去除行尾的"\n"

# 去除文件扩展名，获得一个list

filedir = os.path.splitext(filepath)

# 去除文件扩展名后的路径作为输出的路径

outputdir = filedir[0]

# 文件扩展名

# filesuffix = filedir[1]

# raise SystemExit('Debug and Exit!') #调试

# 输出在当前目录

outputdir = os.path.join(os.path.abspath('.'), '4m1080ptscbr', outputdir)

# ===输出不在当前目录===

#output_basedir = '/mnt/nfs/transcode'

#outputdir = os.path.join(output_basedir, 'ts8M1080P', outputdir)

# ===输出不在当前目录===

# 标准化路径名，合并多余的分隔符和上层引

outputdir = os.path.normpath(outputdir)

# 替换空格

#outputdir = outputdir.replace(" ", "_")

output_basedir = os.path.dirname(outputdir)

if os.path.exists(output_basedir):

logging.info(output_basedir + ", the dir already exist.")

else:

logging.info(output_basedir + ", the dir create success.")

os.makedirs(output_basedir)

logging.warning(filepath) # 记录进度

transcode(filepath, outputdir)

line = f.readline()

if __name__ == '__main__':

main()