blob: cfff188869bdf94d548b6d616559e4b9a14ae04d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
#!/usr/bin/python env
"""This script can be used to remove audio noise from 'ogv' videos.
Usage:(for future Srikant & all users)
1)Remove noise from a single file:
----------------------------------
$ python noNoise.py VideoWithNoise.ogv CleanVideo.ogv
(source file) (destination file)
(OR)
$ python noNoise.py VideoWithNoise.ogv CleanVideo.ogv 0.21
(source file) (destination file) (noise factor)
The third argument is optional(Noise factor). The scale spans from
0.0 to 1.0. Zero means no noise supression and 1.0 means full. The full
scale is avoided. Best optimum result is found between 0.2 to 0.3. By default
script will take 0.26. One can experiment with noise factor to get best noise
free video.
NOTE: Careful, destination file will be overwritten if exist in given path.
2)Remove noise from all files inside a directory:
-------------------------------------------------
$ python noNoise.py allNoisyFiles allCleanFiles
(source dir) (destination dir)
(OR)
$ python noNoise.py allNoisyFiles allCleanFiles 0.21
(source Dir) (destination dir) (Noise factor)
NOTE: Please don't use any '/' after directory name. It will spit error.
The fix is possible, but I don't want to spend time on it. This script is dirty
but useful(atleast for me). When I find time, I will surely modify it. Meanwhile
you all are welcome to add modifications. Please find this copy and future updates
at http://github.com/srikantpatnaik.
Thanks for your time.
Details of each commands are in README.rst.
"""
from os import system, path, listdir, chdir, mkdir
from sys import argv
from time import sleep
def checkType():
#Check for type of first argument(file or dir).
if path.isdir(argv[1]):
processDir()
else:
processFile()
return
def processDir():
#make dir to save all new files
mkdir(argv[2])
#cd to source dir
chdir(argv[1])
for eachfile in listdir('.'):
execute(setCommands(eachfile))
return
def processFile():
#Calling setCommands with source file.
#Will return list of commands to be executed
execute(setCommands(argv[1]))
return
def execute(cli):
#total 7 commands with some delay for disk
#write and sync
for each in cli:
system(each)
sleep(0.2)
return
def setCommands(filename):
#The dirty function.
cli = [None]*7
cli[0] = 'ffmpeg -i ' + ' ' + filename + ' -sameq -an ' + '.rawVideo.wmv'
cli[1] = 'ffmpeg -i ' + ' ' + filename + ' -sameq ' + '.rawAudio.wav'
cli[2] = 'sox .rawAudio.wav -t null /dev/null trim 0 0.5 noiseprof myprofile'
#Checks for noise factor.
if len(argv)>3:
cli[3] = 'sox .rawAudio.wav .noisefree.wav noisered myprofile ' + argv[3]
else:
#The default value for noise factor is 0.26. Change accordingly.
cli[3] = 'sox .rawAudio.wav .noisefree.wav noisered myprofile 0.26'
#Creating a less compressed file to retain video quality.
cli[4] = 'ffmpeg -i .noisefree.wav -i .rawVideo.wmv -sameq .combined.wmv'
#Checks for file or directory. If dir, the output is saved in different directory.
if not path.isfile(argv[1]):
cli[5] = 'ffmpeg2theora .combined.wmv -o ' + '../' + argv[2] + '/' + filename
else:
#Will create the final ogv video from wmv.
cli[5] = 'ffmpeg2theora .combined.wmv -o ' + argv[2]
cli[6] = 'rm .rawVideo.wmv .rawAudio.wav .noisefree.wav .combined.wmv myprofile'
return cli
if __name__ == '__main__':
checkType()
|
