Hi,
I've a streamed wmv downloaded from a TV channel web site and I try to encode it to mpeg 2 to put on a dvd.
The original wmv is 320*240 at 25 fps
I resize it to 352*288 MPEG-2 at 1700 kbps.
The quality is quite decent for such a source file.
But I'd like to enhance a little the details and/or attenuate the compression artifacts.
here is a captured frame from the resized file before compression to mpeg-2
and the avisynth script:
what avisynth or virtualdub filters can I apply to improve a little the video quality ??Code:DirectShowsource("d:\melissa\HD_1213_orleans_midipile_270406.wmv") Lanczos4Resize(352,288) Resampleaudio(48000) Trim(19942,25255) FadeOut(37)
thanks.
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You could also consider *keeping* your source resolution at 320 and
just mask the extra as black space to complete a 352 resolution for
your mpeg. By doing this, you stop one less step of "filtering" or
"softening" your video on account of the resizing to fit a given spec,
hense your 352 x 288 spec.
In your script, just add a function:
addboarders(a,b,c,d)
Sorry, I don't under AVIsynth's coordinate system, (maybe someone else
who does, can help you) but somewhere in there, you have to put in 16
for the left, and 16 for the right.. and then, 24 for the top, and 24
for the bottom, as this will mask your original source with some black
boarders.
But, if you still feel the need to add some filtering to help improve
some aspect of your video, then do this *before* you apply the addboarders()
function. Otherwise, you run the risk that such filters will apply their
filtering inside the boarders as well.. and you don't want that. You
want clean black boarders.
-vhelp 3972 -
Windows movie maker ... to dv avi ... vdub = resize and return to scale ... frame serve to bbmpeg ... output mpeg2 at 352x288 .
Work's for vcd's , asf's and wmv's ... retain's much quality .
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