Python converts FLV format to avi

development environment ：

python
opencv
ffmpeg
python The relevant package

import cv2, subprocess, os, shutil from moviepy.editor
import AudioFileClip

Ideas

1. Audio and video separation
2. Video format passed opencv conversion
3. ffmpeg Merge audio and video

Code

# encoding=utf8
from sys import path
import cv2, subprocess, os, shutil
from moviepy.editor import AudioFileClip
from_path = 'D:/file/'
target_path = 'D:/file/target/'
mid_flv = "mid.flv"
mid_avi = "mid.avi"
def video_format(video_name):
videoCapture = cv2.VideoCapture(target_path + video_name)
# Get the bit rate and size 
fps = videoCapture.get(cv2.CAP_PROP_FPS)
size = (int(videoCapture.get(cv2.CAP_PROP_FRAME_WIDTH)),
int(videoCapture.get(cv2.CAP_PROP_FRAME_HEIGHT)))
# Specify the format of writing video , I420-avi, MJPG-mp40
outfile_name = video_name.split('.')[0] + '.avi'
videoWriter = cv2.VideoWriter(target_path + outfile_name, cv2.VideoWriter_fourcc('F', 'L', 'V', '1'), fps, size)
# Read frame 
success, frame = videoCapture.read()
while success:
# cv2.imshow('isshow',frame) # Show 
# cv2.waitKey(int(1000 / int(fps))) # Delay 
videoWriter.write(frame) # Write video frame 
success, frame = videoCapture.read() # Get the next frame 
def autio_format(video_name):
my_audio_clip = AudioFileClip(target_path + video_name)
my_audio_clip.write_audiofile(target_path + "mid.wav")
def video_add_autio(file_name, mp3_file, new_file_name):
""" Video add audio :param file_name: The path to the incoming video file :param mp3_file: The path to the incoming audio file :return: """
outfile_name = new_file_name.split('.')[0] + '.avi'
print(outfile_name)
subprocess.call('ffmpeg -i ' + file_name
+ ' -i ' + mp3_file + ' -strict -2 -f avi "'
+ target_path + outfile_name+'"', shell=True)
def run():
num = 0
for root, dirs, files in os.walk(from_path):
for file in files:
if ".flv" in file:
shutil.copyfile(from_path + file, target_path + mid_flv)
num = num + 1
print("************** Converting page " + str(num) + " A video **********************")
format_video(mid_flv, file)
os.remove(target_path + mid_flv)
os.remove(target_path + mid_avi)
def format_video(video_name, file):
autio_format(video_name)
video_format(video_name)
video_add_autio(file_name=target_path + video_name, mp3_file=target_path + 'mid.wav', new_file_name=file)
run()