Like often with encoding. But I can't really tell anything about iMovie, at work we use Final Cut. Always a good idea to take an even ratio for the resizing like 1:2 (50%), smarter from a mathematical point of view. You are encoding as Flash 7 right?
Perhaps you just need this: Good luck experimenting. John Kirby wrote: > Alexander - > > I think you might be right about the interlacing. When I run the > "original" from iMovie HD in 1080 it looks OK... no Ghosts. > > So I'm in expert mode in iMovie while exporting... and using the > deinterlace switch. The question is what best compression to use for > a 700/800 wide picture when the original is 1900 pixels? > > This appears to be a trial and error process > > Alexander Bethke said the following: >> You might try deinterlacing your material before the encoding. At >> least I can see two movement phases when looking at a still from your >> material. This will increase the efficiency of the encoding process >> and make a sharper picture. ffmpeg for instance has a -deinterlace >> parameter. Deinterlacing is usually recommended when showing material >> on a computers screen only. >> >> Otherwise I might be wrong and you did actually deinterlace. Then it >> is not really a good one, or the "ghoust image" problem comes from >> something else. Then I do not want to have said anything. >> >> Regards, Alex >> >> >> >> >> John Kirby wrote: >> >>> I have been shooting 1080i and have been playing with format >>> (down-size to 720p) via Compressor to get a suite spot for good >>> performance/quality. >>> >>> Right now my large format in a flv is 720 x420 with either 30 FPS or >>> 24 FPS. The file is around 55--> 60 mb (compressed from the >>> original 5.7 Gb!). >>> >>> So are there any rules of thumb for frame rates, compression flv >>> encodings to take the high end 1080i and get good quality/performance. >>> >>> What I'm seeing is occasional blurring of the image in the 720 x 420 >>> format. >>> >>> You can see what I'm talking about at >>> <http://infinitymedialabs.com/copper/choppers/2007> Click on videos >>> tab. Hit connect and select Week1_Large.flv >>> >>> I'm running 0.5 version of Red5. >>> >>> This could be because I'm streaming a large file? >>> >>> .j >>> ------------------------------------------------------------------------ >>> >>> >>> _______________________________________________ >>> Red5 mailing list >>> [email protected] >>> http://osflash.org/mailman/listinfo/red5_osflash.org >>> >> >> >> _______________________________________________ >> Red5 mailing list >> [email protected] >> http://osflash.org/mailman/listinfo/red5_osflash.org >> >> > > ------------------------------------------------------------------------ > > _______________________________________________ > Red5 mailing list > [email protected] > http://osflash.org/mailman/listinfo/red5_osflash.org > _______________________________________________ Red5 mailing list [email protected] http://osflash.org/mailman/listinfo/red5_osflash.org
