On Samstag 28 Januar 2006 20:12, Nicolas wrote: > On Tue, Jan 24, 2006 at 09:13:19PM +0100, Johannes Sixt wrote: > > - Work with deinterlaced footage. > > > > I've done a 10+ seconds shot where I had to tweak the mask at every > > single frame. Since I grabbed it from DV, I used Fields-to-Frames to > > "deinterlace" the frames, so I have actually 50/sec frames. I think I > > know what I'm talking about as far as mask are concerned ;) > > Hannes, > > You advised me to work on deinterlaced footage. My project output will > be a DVD, and I need the best quality. I though deinterlacing footage > reduces the quality of pictures. > However applying the masks on some parts of my projects is difficult > when not deinterlacing the picture. > > What's your opinion? Must I really deinterlace the footage to mask some > part of the picture?
You need not, if you have ample disk space. The idea is: 1. "Fields to frames" 2. apply mask 3. render 4. "Frames to fields" 5. Convert to destination format. For my project I applied the "Fields to frames" effect using Video->Render effect and stored the result as Quicktime YUV 4:2:0 Planar (huge!), which now has 50 FPS (I'm in PAL land). Since the source is DV, I used "Bottom field first". Then I imported the resulting file and edited the mask there. I had to set the project frame rate to 50/sec. Note that it should be possible to insert the file in the original project (make backup copies) and copy and paste the keyframes that you already have to the new track. (Due to rounding errors it sometimes happens that a frame is missing and another one duplicated in its place - I don't care.) That's my current project state (with keyframes on virtually every single frame). I'd now continue to render the track into Quicktime YUV 4:2:0 Planar. Then use Video->Render effect "Frames to fields" with Bottom field first. In my case I could put the result into Quicktime DV, but any other format would be acceptable that is capable to hold interlaced material (Uncompressed RGB, for example). Now insert the new track again into the project (set it to 25 FPS) and render again with the sound. -- Hannes _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
