Log values into a file

[piscator]

Seems a rather obvious thing to do, but couldn't find an answer so far.

I want to output a few values of a rather complex calculation to a text-file. It seems not possible with any of the standard functions documented on http://www.avisynth.org/index.php?page=ScriptFunctions.

thanks,
Piscator

[KpeX]

It's not the easiest, but the only way I know of to create such a log is with Nic's Call plugin and the included NicEcho.exe, there's a good example in the included readme IIRC. Here's the thread: http://forum.doom9.org/showthread.php?s=&threadid=46506
hth,

[piscator]

I already expected I would need a filter/plugin for that. This should work. Thanks for the quick response and the link.

greetz,
Piscator

[WarpEnterprises]

I made a plugin only for that task.
Details are in the readme.
There are two functions in there:

Write()

and (a modified)

String(variable, format)

http://www.avisynth.org/users/warpenterprises/files/chr_25_dll_20030920.zip


Version.FadeIn(50).ConvertToYV12 # ein test-video

# print the frame number, time and AverageLuma for that frame
# Chr(34) is necessary to get the quotes in the String

Write(last, filename, "current_frame", "time(" + chr(34) + " %H:%M:%S " + chr(34) + ")", "AverageLuma")



Attention: don't use the clip which is fed in the Write() into AverageLuma after the Write, it get's somehow recursive and crahes.
Use a temporary variable instead.


Example for formatting with String:

String(1.23, "%f") '1.23'
String(1.23, "%5.1f") ' 1.2'
String(1.23, "%1.3f") '1.230'

[piscator]

Great, that's exactly what I'm looking for :)

thanks,
Piscator

[DDogg]

This is brilliant, WarpEnterprises. It seems extremely well thought out. FYI, the readme shows a write.dll, but I see now you have added that into a new chr.dll.

[WarpEnterprises]

...you are right, there is no WRITE.DLL, I updated the docs.

Please report any success / failures.

I was trying to use variables together with FrameEvaluate but it seems I haven't understood that fully - it is always one step behind, regardless where I put the Write().