transcode.py

#!/usr/local/bin/python

# Yannick Guillerm - Scality
# yannick.guillerm@scality.com
# 04/04/18

import requests
import sys, getopt
import argparse
import os
import shutil

def main(argv):
	filepath = ""
	format1 = ""
	format2 = ""
	format3 = ""
	format4 = ""

	# Parse arguments. File full path and op (upload/download)
	parser = argparse.ArgumentParser()
	parser.add_argument('--f', help='f help')
	parser.add_argument('--f1', help='f1 help')
	parser.add_argument('--f2', help='f2 help')
	parser.add_argument('--f3', help='f3 help')
	parser.add_argument('--f4', help='f4 help')
	args = vars(parser.parse_args())

	filepath = args['f']
	format1 =  args['f1']
	format2 =  args['f2']
	format3 =  args['f3']
	format4 =  args['f4']

	print filepath
	print format1
	print format2
	print format3
	print format4

	# Clean transcode destination directory
	for root, dirs, files in os.walk('/Users/scality/Documents/StreamingCDN/Transcode'):
		for f in files:
			os.unlink(os.path.join(root, f))

	# Clean content of Amazon bucket
	print "Deleting Amzon bucket objects ..."
	Command = 'aws s3api delete-object --bucket nab-media-1 --key nab-amazon-media/San_Francisco_Timelapse_' + format1 + '.mp4'
	print Command
	#os.system(Command)
	Command = 'aws s3api delete-object --bucket nab-media-1 --key nab-amazon-media/San_Francisco_Timelapse_' + format2 + '.mp4'
	print Command
	#os.system(Command)
	Command = 'aws s3api delete-object --bucket nab-media-1 --key nab-amazon-media/San_Francisco_Timelapse_' + format3 + '.mp4'
	print Command
	#os.system(Command)
	Command = 'aws s3api delete-object --bucket nab-media-1 --key nab-amazon-media/San_Francisco_Timelapse_' + format4 + '.mp4'
	print Command
	#os.system(Command)
	print "Amazon bucket oject deleted"

    # Transcode to all formats and save results to /Users/scality/Documents/StreamingCDN/Transcode/
	Command = 'ffmpeg -i ' + filepath + ' -s ' + format1 + ' -b 1000k -strict -2 /Users/scality/Documents/StreamingCDN/Transcode/San_Francisco_Timelapse_' + format1 + '.mp4'
	print Command
	os.system(Command)
	Command = 'ffmpeg -i ' + filepath + ' -s ' + format2 + ' -b 1000k -strict -2 /Users/scality/Documents/StreamingCDN/Transcode/San_Francisco_Timelapse_' + format2 + '.mp4'
	print Command
	os.system(Command)
	Command = 'ffmpeg -i ' + filepath + ' -s ' + format3 + ' -b 1000k -strict -2 /Users/scality/Documents/StreamingCDN/Transcode/San_Francisco_Timelapse_' + format3 + '.mp4'
	print Command
	os.system(Command)
	Command = 'ffmpeg -i ' + filepath + ' -s ' + format4 + ' -b 1000k -strict -2 /Users/scality/Documents/StreamingCDN/Transcode/San_Francisco_Timelapse_' + format4 + '.mp4'
	print Command
	os.system(Command)

	# Upload all transcoded files to S3 in the Zenko Amazon bucket (which will be replicated to the Azure bucket)
	# PUT file format1
	Command = 's3cmd put ' + '/Users/scality/Documents/StreamingCDN/Transcode/San_Francisco_Timelapse_' + format1 + '.mp4' + ' s3://nab-amazon-media'
	print Command
	os.system(Command)
	# Grant public read access
	Command = 'aws s3api put-object-acl --bucket nab-media-1 --key nab-amazon-media/San_Francisco_Timelapse_' + format1 + '.mp4 --acl public-read'
	print Command
	os.system(Command)

	# PUT file format2
	Command = 's3cmd put ' + '/Users/scality/Documents/StreamingCDN/Transcode/San_Francisco_Timelapse_' + format2 + '.mp4' + ' s3://nab-amazon-media'
	print Command
	os.system(Command)
	# Grant public read access
	Command = 'aws s3api put-object-acl --bucket nab-media-1 --key nab-amazon-media/San_Francisco_Timelapse_' + format2 + '.mp4 --acl public-read'
	print Command
	os.system(Command)

	# PUT file format3
	Command = 's3cmd put ' + '/Users/scality/Documents/StreamingCDN/Transcode/San_Francisco_Timelapse_' + format3 + '.mp4' + ' s3://nab-amazon-media'
	print Command
	os.system(Command)
	# Grant public read access
	Command = 'aws s3api put-object-acl --bucket nab-media-1 --key nab-amazon-media/San_Francisco_Timelapse_' + format3 + '.mp4 --acl public-read'
	print Command
	os.system(Command)

	# PUT file format4
	Command = 's3cmd put ' + '/Users/scality/Documents/StreamingCDN/Transcode/San_Francisco_Timelapse_' + format4 + '.mp4' + ' s3://nab-amazon-media'
	print Command
	os.system(Command)
	# Grant public read access
	Command = 'aws s3api put-object-acl --bucket nab-media-1 --key nab-amazon-media/San_Francisco_Timelapse_' + format4 + '.mp4 --acl public-read'
	print Command
	os.system(Command)

	# ZENKO will automatically replicate objects fron Amazon to Azure via a replication policy


if __name__ == "__main__":
    main(sys.argv[1:])