aboutsummaryrefslogtreecommitdiffhomepage
path: root/TOOLS/dvd2divxscript.pl
blob: 2acbfa049eda7eb02a7045e3d38a6e57fafdcc51 (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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
#!/usr/bin/perl

#
# (c) 2002 by Florian Schilhabel <florian.schilhabel@web.de>
#
#
# version 0.1  initial release  22/08/2002
#
#
# If you have any comments, suggestions, etc., feel free to send me a mail ;-))
# flames and other things like that should go to /dev/null
# thankx to all the mplayer developers for this really *great* piece of software
#
#
#  This script is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This script is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
#
#
use Getopt::Long;

# specify your default Settings here...

$abr_default = 128;          # The default AudioBitRate
$lang_default = "de";        # ... the language
$cdsize_default = 700;       # ... the CD-Rom Size
$writedev_default = "0,1,0"; # ... the CD Writer Device
$speed_default = 4;          # and the writer speed

# end of default Settings



sub delete_tempfiles {
	if (open(FILE, "< audio.stderr")) {
	close (FILE);
	system ("rm audio.stderr")
	}
	if (open(FILE, "< frameno.avi")) {
	close (FILE);
	system ("rm frameno.avi");
	}
	if (open(FILE, "< lavc_stats.txt")) {
	close (FILE);
	system ("rm lavc_stats.txt");
	}
}

GetOptions( 		"help" => \$help,
			"abr=i" => \$abr,
			"lang=s" =>\$lang,
			"cdsize=i" => \$cdsize,
			"dvd=i" => \$dvd_track,
			"keeptemp" => \$keeptemp,
			"shutdown" => \$shutdown,
			"out=s" => \$output,
			"writecd" => \$writecd,
			"writedev=s" => \$writedev,
			"speed=i" => \$speed );

if ($help) {
	print "Welcome to the DVD to DIVX Helper Script\n";
	print "\n";
	print "this script encodes a DVD track in 3-pass mode to libavcodec's mpeg4\n";
	print "Optionally it writes the resulting MovieFile to a CD-Rom\n";
	print "as well as the corresponding audio track to mp3\n";
	print "Optionally it writes the resulting MovieFile to a CD-Rom\n";
	print "and shuts down the Computer.\n";
	print "If you like, you can watch the mencoder output on /dev/tty8\n";
	print "Usage:\n";
	print "--help              show this text\n";
	print "--abr               (AudioBitRate) Please enter the desired bitrate\n";
	print "                    this can be either [96|128|192] kbit/sec.\n";
	print "                    Default: 128 kbit/sec.\n";
	print "--lang              specify the Language of the audio track\n";
	print "                    this can be for example <en> or <de>\n";
	print "                    Default: <de>\n";
	print "--dvd               specify the DVD Track, you want to encode\n";
	print "--cdsize            specify the Size of your CD-ROM\n";
	print "                    Default: 700MB\n";
	print "--shutdown          Shutdown the System, when the encoding process has finished\n";
	print "                    this will only be possible if you are root\n";
	print "--out               Specify the Name of your encoded Movie\n";
	print "                    The File Extension will be appended automatically\n";
	print "--writecd           takes the newly created Movie and writes it to a CD-Rom\n";
	print "--writedev          is the usual cdrecord device identifier\n";
	print "                    for example 0,1,0\n";
	print "--speed             the writing speed\n";
	print "                    Default: 4\n";
	exit;
}

delete_tempfiles();

# testing user values && set defaults...

if ($abr == 96){}
elsif ($abr == 128) {}
elsif ($abr == 192) {}
elsif ($abr == 0 ) {
	print "No AudioBitRate specified - Setting to Default Value\n";
	$abr = $abr_default;
}
else {
print "AudioBitRate not valid. please choose [96|128|192]\n";
exit;
}

if ($lang eq "") {
	print "No Language specified - Setting to Default Value\n";
	$lang = $lang_default;
}
else {}

if ($dvd_track == 0 ) {
	print "No DVD Track selected - You must specify one with: --dvd trackno.\n";
	exit;
}

if ($cdsize == 650) {}
elsif ($cdsize == 700) {}
elsif ($cdsize == 800) {}
elsif ($cdsize == 0 ) {
	print "No CD Size Specified - Setting to Default Value\n";
	$cdsize = $cdsize_default;
}

else	{
print "CD Size not valid. please choose [650|700|800]\n";
exit;
}

if ($output eq "") {
	print "No MovieName given - You must specify one with: --out [movie_name]\n";
	exit;
}
else {
	($name, $extension) = split(/./, $out);
	if ($extension eq "avi") {
		$vob_tempfile = "$name.vob";
		$avi_filename = "$output";
	}
	else {
		$vob_tempfile = "$output.vob";
		print "VOB CacheFile set to $vob_tempfile\n";
		$avi_filename = "$output.avi";
		print "Movie Filename set to $avi_filename\n";
	}
}

if ($shutdown) {
	# test who i am
	$user = `id -u`;
	if ($user == 0) {
		print "System will be shut down after Movie encoding\n";
	}
	else {
		print "Cannot shutdown the system after Movie encoding - you are not 'root'\n";
		exit;
	}
}

if ($writecd) {
	if ($writedev == "") {
		print "Setting CD Writer Device to Default Value\n";
		$writedev = $writedev_default;
	}
	if ($speed == 0) {
		print "Setting CD Writer Speed to Default value\n";
		$speed = $speed_default;
	}

}



###

print "Your Settings for this run are:\n";
print "AudioBitRate:    $abr\n";
print "Language:        $lang\n";
print "DVD-Track:       $dvd_track\n";
print "CD-Rom Size:     $cdsize\n";
print "Movie FIlename:  $avi_filename\n";
if ($writecd) {
	print "CD Writer Dev.:  $writedev\n";
	print "Writer Speed:    $speed\n";
}

# here comes the fun part...

print "precacheing...\n";
$status = system ("mencoder dvd://$dvd_track -ovc copy -oac copy -alang $lang -o $vob_tempfile 1>/dev/tty8 2>/dev/tty8");
die "Prechacheing failed. mencoder exited with Status Code $?" unless $status == 0;

print "Encoding Audio...\n";
$status = system ("mencoder $vob_tempfile -ovc frameno -oac mp3lame -lameopts br=$abr:cbr:vol=3 -o frameno.avi 1>./audio.stderr 2>/dev/tty8");
die "Encoding Audio failed. mencoder exited with Status Code $?" unless $status == 0;

# now we have to find out the recommended bitrate for the Video encoding process...
# my current method to find this out is, hmm, well, *strange*
# but anyway, it works ;-))

open(FILE, "< audio.stderr") or die "Unable to open audio.stderr.";
@lines = <FILE>;
foreach $line (@lines) {
	($index, $zz) = split(" ", $line);
	if ($index eq "Recommended") {
		($a, $b, $c, $d, $size, $f, $bitrate) = split(" ", $line);
		if ($cdsize == $size) {
			$video_bitrate = $bitrate;
			print "Setting Videobitrate to $video_bitrate\n";
		}
	}
}
close (FILE);

print "Encoding Video Stream, 1st pass...\n";
$status = system ("mencoder $vob_tempfile -ovc lavc -lavcopts vpass=1:vcodec=mpeg4:vbitrate=$video_bitrate:vhq -oac copy -o $avi_filename 1>/dev/tty8 2>/dev/tty8");
die "Encoding Video Stream failed. mencoder exited with Status Code $?" unless $status == 0;

print "Encoding Video Stream, 2nd pass...\n";
$status = system ("mencoder $vob_tempfile -ovc lavc -lavcopts vpass=2:vcodec=mpeg4:vbitrate=$video_bitrate:vhq -oac copy -o $avi_filename 1>/dev/tty8 2>/dev/tty8");
die "Encoding Video Stream failed. mencoder exited with Status Code $?" unless $status == 0;

print "finished encoding\n";


if ($writecd) {
	print "Now writing CD-Rom\n";
        $status = system("mkisofs -r -J $avi_filename | cdrecord  speed=$speed  dev=$writedev -data  - 2>/dev/tty8 1>/dev/tty8");
	die "Writing CD failed. cdrecord exited with Status Code $?" unless $status == 0;
}
delete_tempfiles();

print "Finished - have a nice day ;-)\n";
if ($shutdown) {
	system("halt");
	exit;
}
exit;