| Getting MPEG routines to write from 24-bit display. [message #13891] |
Wed, 06 January 1999 00:00 |
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Steve[2]
Messages: 7
Registered: January 1999
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Junior Member |
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I am having trouble getting IDL 5.2's MPEG_PUT, etc. to
write MPEG movies. I am writing to an
Xwindow (Linux 2.0.35, XF86_SVGA) and use:
mpegID=MPEG_OPEN([0.5*SCRSIZE[0],0.5*SCRSIZE[1]])
MPEG_PUT, mpegID, WINDOW=0,FRAME=0,ORDER=1
j=0
for i=start,stop-deadoffset,step do begin
j=j+1
MPEG_PUT, mpegID, WINDOW=0,ORDER=1,FRAME=j
endfor
MPEG_SAVE, mpegID, filename='latest.mpg'
MPEG_CLOSE, mpegID
the windowsize is 576x432. When I first began, I was getting
maybe 10 or 20 frames out of 100, now
I only get one frame and no errors! Also, I am fairly
unhappy with the quality of the images, there seems
to be some fuzzy, pixelated effects in the images. If I
write a GIF image of the window contents, it looks
beautiful. I tried playing with the IDLgrMPEG:: object
directly (MPEG_PUT and all are front-ends to this) and I may
have altered something that is now irreversible. I am an
old-style direct graphics programmer and haven't really
delved into the object graphics yet. I have tried several
IDL example programs available on the web (fanning
consulting or something) and also on the IDL tech-tips at
the RSI web site. These also produce MPEG's with missing
frames. I am using xanim (ver. 2.70.6.4), which seems to
play most MPEG's I've encountered. Anyone have any ideas
what I'm doing wrong?
Steve
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