Determine video stream saving in the script

[dum]

Hi, cannot someone tell me: can I determine (or even - have some influence) on file videofile saving in my script. For example I have script like this:

AVISource("some.avi")
#
# Make necessary transformations of avi-file
#

and after all this I want to save it to the file, without using "Save as..." option of VirtualDubMod (I use this one, but it doesn't matter), because I want to make a king of automation. Is it possible? What opportunities I have? What functions I have to read about?

[tsp]

short answer: No

Not from within the script at least unless you use a special filter that can interact with the program that opened the AviScript and I'm not aware of such a special filter.

[dum]

Does anyone know and can give me the reference to the filter, which can help my?

[smok3]

you can avtomate virtualdub throught the use of vdub.exe (dunno if that was there in virtualdubmod era thought).

example windows .bat, save audio:

rem purpose - to extract audio to separate file where it can be procesed further

@ECHO OFF
echo ------------------------------------ vdub extract audio to pcm
title extract audio to pcm %1

echo VirtualDub.Open(VirtualDub.params[0]); > "%~dp1%~n1.script"
echo VirtualDub.SaveWAV(VirtualDub.params[1]); >> "%~dp1%~n1.script"

@vdub /i "%~dp1%~n1.script" "%~dp1%~n1%~x1" "%~dp1%~n1.wav"

del "%~dp1%~n1.script"

[dum]

Ok, yes I can do like this. But, nevertheless, may be someone knows the avisynth filter, which exactly saves video data to AVI file (in other words - saves file, having PClip)?

[squid_80]

Something like the twriteavi (http://forum.doom9.org/showthread.php?t=121869&highlight=twriteavi) filter? You still need something to play through the script (hint: search for avsutil). Avisynth is designed to frameserve, not write files itself.

[dum]

Thanks a lot! Exactly what I have meant (if someone know any other filters like this - please, let me know).

But, squid_80, what do you mean, when you say that I'll "need something to play through the script"?

[squid_80]

It won't write a whole avi file as soon as the script is opened, you have to view all the frames so that they are processed by the filter and written out.

[dum]

Someone knows any other filters like that TWiteAvi, which write video stream to the file, from AviSynth script?

[dum]

squid_80, can you please send me a working sample script, which uses TWriteAvi. Thank you beforehand.