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View Full Version : Alpha channel - known limitations?


NoX1911
4th January 2006, 04:37
Is this a valid script?

BlankClip(length=3000, width=640, height=480, pixel_type="RGB32", fps=30, color=$ff0000)
ShowSMPTE(offset="00:00:00:00", x=300, y=280, font="arial", size=100, text_color=$00ff00)
Mask (Last, Last)
#ShowAlpha()
------------------------------------------
I'm trying to use this script in PremierePro (+Premiere AVS plugin) but i don't get an alpha channel, seems it doesn't get imported (like RGB24). If i enable 'ShowAlpha' avisynth shows me the correct alpha channel though. If i encode this script with VDub and huffyuv(rgb32) the resulting avi works fine in ppro.
I tried ffdshows makeAVIS as well but it results in the same output with no alpha channel.

Is there maybe something wrong with the script i'm not aware of? Maybe 'mask' is outdated or something...
If there are no known limitations with avisynth alpha channel handling it must be the 'premiere avs plugin'...

Wilbert
4th January 2006, 14:16
Hmm, alpha should be supported in that plugin (PremiereAVSPlugin v1.5). I suggest you file a bugreport at:
http://sourceforge.net/projects/videoeditorskit/ or send a mail to 'ian at absolutedestiny.org' or send a pm to zettai :)