Paper size

1pt = 1 inch (= 25.4 millimeters) / 72 = 0.35277777...

ISO A3 [Landscape] (420mm × 297mm)
1190.6pt × 841.9pt = 420.0172222...mm × 297.00361111...mm

ISO A4 [Portrait] (210mm × 297mm)
595.3pt × 841.9pt = 210.00861111...mm × 297.00361111...mm

JIS B4 [Portrait] (257mm × 364mm)
728.5pt x 1031.8pt = 256.99861111...mm × 363.9961111...mm 

JIS B3 [Landscape] (515mm × 364mm)
1459.8pt x 1031.8pt = 514.98499999...mm × 363.9961111...mm 

JIS B2 [Landscape] (728mm × 515mm)
2063.6pt x 1459.8pt = 727.99222222...mm × 514.98499999...mm

En/Decrypt Blowfish with Zenity

Usage: As you like, Your own risk.

--

Encrypt

Requires:

Openssl, Zenity

Menu Name:

Encrypt Blowfish

Description:

Encryp Blowfish CBC - base64


#!/usr/bin/env bash

function encrypt()
{
pass=`zenity --entry --title='Encrypt Blowfish CBC - base64' \
--text='Enter Encryption Password' --hide-text --width='400'`

if [ -n "$pass" ]
then
verify=`zenity --entry --title='Verifying | Encrypt Blowfish CBC - base64' \
--text='Re-Enter Encryption Password' --hide-text --width='400'`

if [ "$pass" == "$verify" ]
then
exec openssl enc -bf -salt -e -a -k $pass
else
zenity --error --title='Verify failure' --text='bad password read'
fi
fi
}

encrypt
 

--

Decrypt

Requires:

Openssl, Zenity

Menu Name:

Decrypt Blowfish

Description:

Decrypt Blowfish CBC - base64


#!/usr/bin/env bash

exec openssl enc -bf -salt -d -a -k \
`zenity --entry --title='Decrypt Blowfish CBC - base64' \
--text='Enter Decryption Password' --hide-text --width=400`
 

--

Reference URL

• OpenSSL Tricks
• OpenSSL: The Open Source toolkit for SSL/TLS
• Zenity Manual - GNOME Library

.flv to 16:9 NTSC DVD

Split video, audio

Make audio file

# ffmpeg -i input.flv -vn -acodec pcm_s16le -ar 44100 -ac 2 output.wav

Make raw video file

# ffmpeg -i input.flv -b 10368000 -copyts -vsync -1 -aspect 16:9 -r 30000/1001 -f yuv4mpegpipe -an output.avi

Merge multi audio files

# sox input1.wav input2.wav output.wav

Merge multi video files

# mencoder -ovc copy -oac copy input1.avi input2.avi -aspect 16:9 -ofps 30000/1001 -o output.avi

Make NTSC DVD AC3 audio

# ffmpeg -i input_video.avi -i input_audio.wav -target ntsc-dvd -aspect 16:9 -r 30000/1001 -async 1 -vsync -1 -copyts -b 9000k -acodec ac3 -ar 48000 -ab 384k -ac 2 output.mpg

Make DVD File Format

# dvdauthor -o output_dir -t input.mpg

Finalize DVD File Format

# dvdauthor -o output_dir -T

Make ISO

# mkisofs -dvd-video -o output.iso output_dir