Scripting with VirtualDubMod

Like VirtualDub, VirtualDubMod uses Sylia (developped by Avery Lee too). Some specific functions have been added though.
You will find below a list of the functions you can use in a script with VirtualDubMod.
This list also give you the type of parameters you can use with the function. There are 2 possible types :

• : signed long integer (32 bits) which value can be from -2147483648 to +2147483647
• : a standard string

Integers can also be used as boolean values : 0 means false and any other value means true.
In the functions described below the values returned (when any) are integer values.
You will see that some parameters use the first letter of their name to describe their type :

• b : boolean value
• f : this value is a flag (generally a boolean) in VirtualDub settings (e.g. 'Preferences' settings)
• n/l : generally a long integer (sometimes it is used as DWORD, i.e. unsigned long integer)
• w : generally means the value is a WORD (unsigned integer)

Since version 1.5.5 VirtualDub support Unicode filenames. Thus filenames used in the script files are actually converted to UTF-8, and then processed by the strCify function to make them fit in the script as a string.
Here is the list of defined functions :

• General functions (VirtualDub.) :
• Subset functions (VirtualDub.subset.) :
• Video functions (VirtualDub.video.) :
• Video filters functions (VirtualDub.video.filters.) :
• Video filters functions (VirtualDub.video.filters.instance[n].) :
• Stream (mainly audio, sometimes text) functions (VirtualDub.stream[n].) :
• Audio filters functions (VirtualDub.stream[n].filters) :
• Audio filters functions (VirtualDub.stream[n].filters.instance[n]) :

For compatibility reasons some functions that are somehow deprecated in VirtualDubMod 1.5.x are still kept.
For the same reasons note that VirtualDub.audio will be interpreted as VirtualDub.stream[0] for keeping compatibility with VirtualDub scripts : All this should make VirtualDub scripts still be interpreted correctly in VirtualDubMod 1.5.x.

Here is a list of possible comment types (see the documentation for a description of those types) :

Type	Value
Specific	0x00000000
Generic	0x00000001
Software	0x00000002
Title	0x00000003
Description	0x00000004
Author	0x00000005
Copyright	0x00000006
License	0x00000007
Commissioned	0x00000008
Comment	0x00000009
Genre	0x0000000A
Keywords	0x0000000B
Date	0x0000000C
Version	0x0000000D
Performer	0x0000000E
Album	0x0000000F
TrackNumber	0x00000010
Organisation	0x00000011
Location	0x00000012
Contact	0x00000013
ISRC	0x00000014
URL	0x00000015
(Track) Name	0x00000016
Language	0x00010000

Note that the value 0x00010000 means a user-defined language. Languages defined in the ISO-639-1&2 standards use values beyond 0x00010000 ...

Here is a list of possible input types :

Type	Value
WAV	0x0201
MP3	0x0202
AC3	0x0203
Ogg Vorbis	0x0204
DTS	0x0205
SRT	0x0301

Here is the list of functions that have been removed :