frame in dv
Hi,
I absolutly need to be able to play a movie in dv format from a given image
to an other one.
I tried the frame message but the film is all jerked...
I tried with the dumpframe message but then speed of the movie playback
depends on its size...
What can i do ?
Do you have a solution ? a patch that i could have a look at ?
Please, time is not on my side :-)
Thanks
Czesc
Something like this should work. Next time you might want to post
your patch as it makes it easier for people to help.
It's a bit unclear exactly what you're trying to do. But if you are trying to synchronize playback of two movies, send one jit.qt.movie object a "gettime" message, then parse the result from the right outlet dumpout to send the other jit.qt.movie object a "time $1" message. If you need synchronized playback from different points in each movie, add or subtract from the number used with "time $1".
Kurt Ralske
....
http://retnull.com
http://auv-i.com
It's also worth noting that source material in any codec that uses temporal compression (such as DV) does not gracefully handle jumping to new random points in the file. A codec that uses spatial compression only (such as Photo-JPEG) will do better with this.
Kurt Ralske
....
http://retnull.com
http://auv-i.com
FWIW, DV does not use inter-frame (aka temporal) compression, though,
spatially and chromatically, is more lossy than high quality photo-
jpeg. If performing a sizeable number of "bounces" through some
processing network, I would recommend a lossless codec such as
Animation or PNG (the latter is much more bandwidth/diskspace
friendly than Animation):
More information, including examples of loss through iterated
decoding/encoding at my favorite codec site:
-Joshua
Wow that is a great resource. Thanks for the heads up. Ive read Adam
Wilts site before, but somehow have never seen this..
v a d e //
www.vade.info
abstrakt.vade.info