Hi Rafael, I would choose If it is possible a good soported codec container even if h264 is lossless.
Antonio --- On Sat, 4/10/08, rafael2k <[EMAIL PROTECTED]> wrote: > From: rafael2k <[EMAIL PROTECTED]> > Subject: Re: [CinCV] Best lossless codec for edition and exportation (was: > input format for MP4 576p at 50fps) > To: [email protected] > Date: Saturday, 4 October, 2008, 9:14 PM > Hello Antonio, > > > h264 or x264 are lossy codecs more suitable for > postprodution. > > x264 can create a lossless h.264 output. (--qp 0), ssim = > 1, psnr = infinite. > and w/ (--keyint 1) w/ get h.264 intra-only. > > > The best codec depends in the codec from your source > tapes to keep as much > > quality as possible in the editing without artifacts > in the image. > > when capturing from SDI, HDMI, or analoc input, the video > comes uncompressed, > so I think the best codec is a lossless one. > > > DV have a problem of croma subsampling that don't > have DVPRO or DV50 > > that true, usually people converts dv to some codec w/ a > better croma > subsampling (4:2:2), then edits the footage. > thas why is nice for us to set a optimal codec for the > intermediate codec. > : ) > > bye, > rafael diniz > > > > > Antonio > > > > --- On Sat, 4/10/08, rafael2k > <[EMAIL PROTECTED]> wrote: > > > From: rafael2k <[EMAIL PROTECTED]> > > > Subject: [CinCV] Best lossless codec for edition > and exportation (was: > > > input format for MP4 576p at 50fps) To: > [email protected] > > > Date: Saturday, 4 October, 2008, 2:49 AM > > > Hey people, > > > And how about the best lossless, compressed codec > that can > > > be used to edit? > > > Is h.264 Intra ok for editing? > > > I use to use DV to edit and for exporting x264 in > lossless > > > mode (w/ flac or > > > alac as audio). > > > > > > how about muxing? I see that both ffmpeg and > mencoder have > > > buggy muxers for > > > some stream formats (at least here, they failed > to mux > > > h.264 + flac in mkv, > > > avi, mov or mp4). > > > > > > I'm using yuv4mpeg pipe to create h.264 > lossless output > > > using (very fast in > > > quad-core machines): > > > ln -s /dev/stdin /tmp/video.y4m ; x264 --qp 0 > --no-cabac > > > --subme 1 --keyint > > > 1 --threads auto /tmp/video.y4m -o % > > > > > > > > > bye, > > > rafael diniz > > > > > > Em Thursday 02 October 2008, Florian Cramer > escreveu: > > > > On Thursday, October 02 2008, 20:02 (+0200), > Martin > > > > > > Kápostá? wrote: > > > > > files in DV, that is OK. The case i am > writing is > > > > > > that DV supports only > > > > > > > > 25fps. Could you please suggest the > best format > > > > > > to use 50fps clip in > > > > > > > > Cinelerra ofcourse uncompressed. > > > > > > > > [DV is actually not uncompressed, but a > lossy codec > > > > > > that degrades video > > > > > > > quite a lot if you transcode from better > source > > > > > > material.] > > > > > > > I had a similar question here on the list > just few > > > > > > days ago. After a lot > > > > > > > of experimenting, I found the solution > myself. Since > > > > > > Cinelerra's > > > > > > > preferred uncompressed format is yuv2 video > and pcm > > > > > > audio in a QuickTime > > > > > > > container, the following command line should > render > > > > > > practically any > > > > > > > video file into something that can be opened > and > > > > > > edited in Cinelerra: > > > > transcode -y mov -F yuv2 -N 0x1 -i <input > file> > > > > > > -o output.mov > > > > > > > [Neither ffmpeg, nor mencoder seem to be > able to > > > > > > create yuv2 video > > > > > > > streams, btw.] > > > > > > > > Florian > > > > -- > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- > Ciência da Computação @ Unicamp > Rádio Muda, radiolivre.org, TV Piolho, tvlivre.org, > www.midiaindependente.org > Chave PGP: > http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x2FF86098 > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
