convert mts files to mp4

mts_to_mp4.py

#! /usr/bin/env python

import sys
import os
#import gevent


def convert_to_mp4(path, new_filename, old_filename):
    threads = 4
    os.chdir(path)
    try:
        os.system("ffmpeg -i %s -threads %d -f mp4 %s" %(old_filename, threads, new_filename))
        print("ffmpeg completed converting for %s" % old_filename)
        if os.path.exists(new_filename):
            os.remove(old_filename)
    except:
        raise
        print("Something went wrong")


if __name__ == "__main__":
    path = sys.argv[1]
    if path:
        all_files = os.listdir(path)
        tasks = [convert_to_mp4(path, filename.split('.')[0]+'.mp4', filename) for filename in all_files if filename.endswith('.MTS')]
        #gevent.joinall(tasks)

Let's see if I can write you the bash equivalent:

for FILE in *.MTS; do if [ ! -f ${FILE%%.MTS} ]; then ffmpeg -i $FILE -threads 4 -f mp4 ${FILE%%.MTS}.mp4; fi; done

Typo. Missed a .mp4:

for FILE in *.MTS; do if [ ! -f ${FILE%%.MTS}.mp4 ]; then ffmpeg -i $FILE -threads 4 -f mp4 ${FILE%%.MTS}.mp4; fi; done

os.system is deprecated. Repplaced by subprocess module