Monday, September 30, 2013

Windows solution for warping - avisynth filter

Cross-posted on small_planetarium yahoo group.

Glad to announce yet another Windows solution for warping. This is an implementation as an avisynth plugin called Planetarium, which is listed at
My short review: Takes around 40 sec for video to load into virtualdub using level=7 (documentation is at )
On my machine, rendering proceeds at nearly 2 fps as against 3 seconds per frame taken by jpgwarper (the older Windows solution at )
There is a slight difference in anti-aliasing quality, which I have to explore with different "level" settings.
Where this can be useful: for situations where a pre-rendered video is needed, like playing back from a Blu-ray player instead of a PC and so on. )

Saturday, September 28, 2013

occasional smb connection issues at studio

Occasionally, the Linux smb share becomes inaccessible, not seen in the list of shares, to some of the Mac users in the Studio.

Solution: When not able to save to the shared folder, do the following:

Open Finder.
Choose Go Menu, Connect to Server.
Type smb://
in the server address box. 

Click connect. When it asks to connect as what user, choose the Guest option. Then you will be able to open the shared folders on that machine.

Friday, September 13, 2013

using connectbot on Android

ConnectBot is an Android SSH client which runs on older versions of Android also. It could import the RSA key pair once I copied it to memory card from my Linux desktop's .ssh directory. In order to use Ctrl, Esc, Func and arrow keys, it uses the trackball.

ESC = press trackball twice
CTRL = press trackball once.

Tab = CTRL + i

Function key - CTRL + number

Arrow keys = move trackball right/left/up/down

vlc preliminary trials - fail

Paul Bourke mentioned that a VLC plugin for warping is under development. Tried out exporting a filtered video using VLC as given at this forum thread,

Unfortunately, the output doesn't seem to have the filter applied. Code used was
vlc -I dummy stellarium_movie.avi -v --video-filter="wave" --file-caching="20000"  --sout="#transcode{vcodec=mp4v,vb=8192,scale=1,
deinterlace, audio-sync,acodec=mp4a,ab=128, channels=2}:duplicate{dst=standard{access=file,mux=ts,dst=test\output3wave.mpg}}"

I tried --vout-filter also, as given in the forum, but no go. Output video does not have the filter applied.

vlc -I dummy stellarium_movie.avi -v --vout-filter="wave" --file-caching="20000"  --sout="#transcode{vcodec=mp4v,vb=8192,scale=1,
deinterlace,audio-sync,acodec=mp4a,ab=128, channels=2}:duplicate{dst=standard{access=file,mux=ts,dst=test\output3wave.mpg}}"

Edit: Solution is here.