rohitrangan/JoinMP4.py

## README.md

      
    Raw
  

              README.md
            
          
    A program to convert any given number of mp4's to a single mp4

Requirements:


ffmpeg compiled with libx264 and libvorbis. Even ffmpeg without libx264 and libvorbis will do
with minor changes to the source code.
Python 2.7 (Tested on Python 2.7.1, running on Mac OSX Lion)
A shell containing the 'cat' command. (Preferably the BASH Shell)

Precautions:


Make sure that you have ample free space on your drive as the conversion from mp4 to mpg increases
the file size by a large factor.
It is discouraged to merge more than 3-4 mp4's at a time.

Instructions:


Copy the code into an empty text file and give it a name, say "JoinMP4.py"
Execute chmod u+x /PATH/TO/JoinMP4.py in the BASH shell, giving the path to the created JoinMP4.py.
Execute the python script by ./JoinMP4.py


## JoinMP4.py
#!/usr/bin/env python

import sys
import time
from subprocess import check_output

for i in range(1, len(sys.argv)):
    print sys.argv[i],
    fname = "Part" + str(i) + ".mpg"
    print fname
    check_output(["ffmpeg", "-i", sys.argv[i], "-sameq", fname])

print "Converted all mp4's to mpg's. Now combining them into a single file."

check_output("cat Part*.mpg > ./Final.mpg", shell=True)
print "Removing all the intermediate files..."
time.sleep(3)
check_output("rm Part*.mpg", shell=True)

print "Now converting mpg back to mp4."
print "The size may be smaller than the original mp4 files.",
print "This is because of a change in the audio and video codec."
time.sleep(3)

check_output(["ffmpeg", "-i", "Final.mpg", "-vcodec", "libx264", "-acodec", "libvorbis", "-sameq", "Final.mp4"])
time.sleep(3)
print "Removing the last remaining mpg file..."
check_output("rm Final.mpg", shell=True)
print "Finished merging the files. The output file is Final.mp4"
	#!/usr/bin/env python

	import sys
	import time
	from subprocess import check_output

	for i in range(1, len(sys.argv)):
	print sys.argv[i],
	fname = "Part" + str(i) + ".mpg"
	print fname
	check_output(["ffmpeg", "-i", sys.argv[i], "-sameq", fname])

	print "Converted all mp4's to mpg's. Now combining them into a single file."

	check_output("cat Part*.mpg > ./Final.mpg", shell=True)
	print "Removing all the intermediate files..."
	time.sleep(3)
	check_output("rm Part*.mpg", shell=True)

	print "Now converting mpg back to mp4."
	print "The size may be smaller than the original mp4 files.",
	print "This is because of a change in the audio and video codec."
	time.sleep(3)

	check_output(["ffmpeg", "-i", "Final.mpg", "-vcodec", "libx264", "-acodec", "libvorbis", "-sameq", "Final.mp4"])
	time.sleep(3)
	print "Removing the last remaining mpg file..."
	check_output("rm Final.mpg", shell=True)
	print "Finished merging the files. The output file is Final.mp4"