[MEncoder-users] help encoding jpeg frames to video with soundtrack
Ken and Timi Cecka
ceckak at alumni.washington.edu
Tue Apr 18 05:50:25 CEST 2006
Hi All,
I'm new to video encoding, so I may be making some simple blunders, but I
can't for the life of me get this animation to work right. I've got
approximately 4000 frames of time-lapse photography stored as 480x640
jpegs. I'm trying to encode them at 15 fps in a format that will play
easily on windows, and add a soundtrack. Emphasis is on quality over size.
No matter what I do, I seem to either get lots of blocks showing up in the
cloudy background, orange streaks across the middle of the image, or both.
I've tried a variety of commands, but here's one for reference:
mencoder "mf://*.jpg" -mf fps=15 -o test800.avi -ovc lavc -lavcopts
vcodec=msmpeg4v2:vbitrate=800
I'm omitting the audio for now until I get the video playing correctly, but
the audio track is a wav file (soundtrack.wav) of approximately equivalent
length to the animation (assuming 15fps).
I think a big part of my problem is that there is so much changing from
frame to frame; the images were shot on a 6 minute interval, so the
cloudscape and light level has changed significantly from one frame to the
next. But I would think there should be some way to encode this, even if
it means storing each frame in full (I've tried motion-jpeg, but it doesn't
play in windows).
Thanks in advance for any help,
Ken
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