AviSynth Syntax - Version functions

Version functions provide AviSynth and OS version or bitness information.

VersionNumber

VersionNumber()

Returns AviSynth version number as a float.

Note: use VersionString below to determine if running in AviSynth+.

Examples:

ver = VersionNumber() # ver == 2.57
VersionNumber ## returns 2.60 (release version as of 11/2017)
VersionNumber ## returns 2.61 (beta)
VersionNumber ## returns 2.60 (AVS+ releases)

VersionString

VersionString()

Returns AviSynth version info as a string (first line used in Version command).

Examples:

VersionString ## returns "AviSynth 2.60, build:Mar 31 2015 [16:38:54]"
VersionString ## returns "AviSynth 2.61, build:May 17 2016 [16:06:18] VC2008Exp"
VersionString ## returns "AviSynth+ 0.1, (r2508, MT, x86_64)"
VersionString ## returns "AviSynth+ 3.7.3 (r4041, master, x86_64)"

Sometimes we have distinct between Avisynth+ or Avisynth classic 2.6

function IsAvsPlus()
{
    sVer = LCase(VersionString)
    return (FindStr(sVer, "avisynth+")    > 0)
    \   || (FindStr(sVer, "avisynthplus") > 0)
}

IsVersionOrGreater

bool IsVersionOrGreater(int majorVersion, int minorVersion [,int bugfixVersion])

Returns true if Avisynth+ version is is equal or greater than the required one in the parameters.
Since Avisynth+ 3.5

Examples:

Check if script is run under at least...

isAtLeast3_10 = IsVersionOrGreater(3,10)
isAtLeast3_5_1 = IsVersionOrGreater(3,5,1)

if(IsVersionOrGreater(3,7))
{  SubTitle("at least 3.7")
}
if(IsVersionOrGreater(3,7,3))
{  SubTitle("at least 3.7.3")
}

GetProcessInfo

GetProcessInfo(int)

Returns information about the process the script is running in.

int (required)

valid values are 0 (default) and 1.

• 0 (default):

  • returns 64 for a 64-bit process

  • returns 32 for a 32-bit process.

• 1

  • returns 0 for 32-bit process on 32-bit OS;

  • returns 1 for 32-bit process on 64-bit OS;

  • returns 2 for 64-bit process on 64-bit OS;

  • else returns -1 (unknown)

Examples:

Always loads the appropriate 32/64 bit plugin version:

IF (GetProcessInfo() == 32) {
LoadVirtualdubPlugin("c:\virtualdub\plugins32\Deshaker.vdf","deshaker")
} else {
LoadVirtualdubPlugin("c:\virtualdub\plugins64\Deshaker_64.vdf","deshaker")
}
.. source filter ..
ConvertBits(8)
ConvertToRGB32()
Deshaker("19|1|30|4|1|0|1|0|640|480|1|2|1000|1000|1000|1000|4|1|0|2|8|30|300|4|C:\\temp\\Deshaker.log|0|0|0|0|0|0|0|0|0|0|0|0|0|1|15|15|5|15|0|0|30|30|0|0|0|0|1|1|0|10|1000|1|88|1|1|20|5000|100|20|1|0|ff00ff")

With parameters:

SubTitle("Process bits=" + string(GetProcessInfo) + \
  " detailed=" + string(GetProcessInfo(1)) + \
  " type0=" + string(GetProcessInfo(0)))
# returns process bits=64 detailed=2 type0=64
# running a 64 bit Avisynth on 64 bit OS

Version	Changes
AviSynth+	IsVersionOrGreater GetProcessInfo

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Back to Internal functions.

$Date: 2008/04/20 19:07:34 $