Hi there I have somehow the same issue here. I tried to "translate" from a 1024x768 progressive frames to PAL mpeg2 as a final rendering and it gives a small video in a corner of a big frame... Did I miss anything ? Thanks E
On Wed, 2007-05-09 at 18:06 -0400, Dan Streetman wrote: > Not at all, you can do that. For example you could load up the > original 1080i in cinelerra, add "deinterlace" and "translate" effects > (to convert from i to p and 1080 to 720), and then render the file. > There are many render formats that cinelerra can read back, I would > probably stick with mpeg2 (which unfortunately in cinelerra means you > have to render video and audio separately and mplex them back together > before re-loading into cinelerra). > > But again, why do you want to do this? If you are just going to load > the 720p file back into cinelerra, why not just use the 1080i file > directly instead? > > On 5/6/07, Bas Alphenaar <[EMAIL PROTECTED]> wrote: > > I'm not sure I understand the YUV story..... Thanks for the help though! > > But does this mean that it is impossible to convert 1080i HDV to 720p in > > a format that Cinelerra understands? > > > > Dan Streetman wrote: > > > Yes, cinelerra is currently rather limited in what files it can read > > > (in my opinion, at least). What I (used to) do is open the m2t file > > > directly in cinelerra and use the (now removed) 1080to480 effect (only > > > works if you are outputting NTSC) and the translate effect to change > > > from 1080 to 720. You can find the 1080to480 effect in the svn > > > history, it was removed (changed) for some reason quite a while back. > > > It's almost the same as 1080to540 but obviously the vert resolution is > > > different. > > > > > > What I do now however is fix the quicktime colormodel translation > > > because it incorrectly converts the interlaced YUV420 from the input > > > file to the YUV888 (or RBG888, or any of the working formats), so the > > > chroma channels are incorrectly interlaced - zoom in on any area of > > > high motion with high color contrast and you'll see what I am talking > > > about. Unfortunately the quicktime lib doesn't check the input > > > interlacing so I have to hack/hardcode the conversion, which means I > > > can't use it to edit any progressive input that is in YUV420. Note > > > that the output also has to be fixed if you are using YUV4MPEGPIPE > > > output since it (incorrectly) converts back to YUV420 before piping it > > > out. > > > > > > Then, I use frames->fields then translate to resize each field then > > > fields->frames to change back to interlaced 720x480. Of course I had > > > to also change the frames<->fields effects to correctly convert > > > between frames/fields as the default effects double (or half) the > > > vertical resolution for some reason. > > > > > > On 5/2/07, Bas Alphenaar <[EMAIL PROTECTED]> wrote: > > >> Hello, > > >> > > >> A few days ago I posted a message on this mailinglist about the > > >> Cinelerra viewer that crashed. This problem is solved, but I still can't > > >> use Cinelerra properly because of another problem. > > >> > > >> I am running Cinelerra r1008 on Gentoo (amd64), I compiled with the > > >> following options: > > >> > > >> ./configure --prefix=/usr --with-buildinfo=svn/recompile --enable-mmx > > >> --enable-3dnow --with-external-ffmpeg > > >> > > >> Quote from my other post: > > >> > > >> > I have an HDV camcorder (Sony HDR-HC1) and I capture the MPEG-TS stream > > >> > via Firewire using dvgrab with the HDV patch. > > >> > > >> When the capturing is done, I have a fresh *.m2t file in 1080i. I tried > > >> to convert this file to 720p in several ways but none of them works. > > >> > > >> These are the things I tried, at every point I give the command that I > > >> used to create the 720p video and how Cinelerra handled the video: > > >> > > >> ------------------------------ > > >> > > >> 1. ffmpeg H.264 with AVI container > > >> > > >> ffmpeg -i dvgrab-001.m2t -deinterlace -s 1280x720 -vcodec h264 -qmin 10 > > >> -qmax 15 -acodec mp3 -ab 256k 1.avi > > >> > > >> The Viewer shows nothing, no sound, the commandline says this: > > >> > > >> new_acodec: couldn't find codec for "" > > >> new_vcodec: couldn't find codec for "h264" > > >> new_acodec: couldn't find codec for "" > > >> new_vcodec: couldn't find codec for "h264" > > >> > > >> (Yes, it is outputted twice) > > >> > > >> ------------------------------ > > >> > > >> 2. ffmpeg H.264 with MOV container > > >> > > >> ffmpeg -i dvgrab-001.m2t -deinterlace -s 1280x720 -vcodec h264 -qmin 10 > > >> -qmax 15 -acodec mp3 -ab 256k 2.mov > > >> > > >> The video works and sometimes the sound also works (?), but the sound is > > >> not in sync when it works (I am using ALSA). Cinelerra also throws this > > >> error in an error window randomly while navigating through the video > > >> with the Viewer: > > >> > > >> virtual int FileMOV::read_frame(VFrame*): > > >> quicktime_read_frame/quicktime_decode_video failed, result: > > >> > > >> (http://bugs.cinelerra.org/buglist.cgi?quicksearch=quicktime_read_frame > > >> shows 2 bugs about this problem, so I don't think it can be solved > > >> without somebody who can program) > > >> > > >> ------------------------------ > > >> > > >> 3. ffmpeg H.264 with MOV container (but with AC3 codec) > > >> > > >> ffmpeg -i dvgrab-001.m2t -deinterlace -s 1280x720 -vcodec h264 -qmin 10 > > >> -qmax 15 -acodec ac3 ac3.mov > > >> > > >> The video plays in the Viewer, the sound doesn't. The commandline shows > > >> this: > > >> > > >> new_acodec: couldn't find codec for "ms " > > >> new_acodec: couldn't find codec for "ms " > > >> new_acodec: couldn't find codec for "ms " > > >> new_acodec: couldn't find codec for "ms " > > >> > > >> ------------------------------ > > >> > > >> 4. mencoder H.264 with AVI container > > >> > > >> mencoder dvgrab-001.m2t -ovc x264 -oac mp3lame -vf pp=ci,scale=1280:720 > > >> -o 4.avi > > >> > > >> The Viewer shows nothing and there is no sound, the commandline outputs > > >> this: > > >> > > >> new_vcodec: couldn't find codec for "h264" > > >> new_vcodec: couldn't find codec for "h264" > > >> > > >> ------------------------------ > > >> > > >> 5. ffmpeg MJPEG with AVI container > > >> > > >> ffmpeg -i dvgrab-001.m2t -deinterlace -s 1280x720 -vcodec mjpeg -acodec > > >> mp3 -ab 256k 5.avi > > >> > > >> No video or sound in the Viewer, can't even move the navigation button. > > >> The commandline shows this: > > >> > > >> new_acodec: couldn't find codec for "" > > >> new_acodec: couldn't find codec for "" > > >> new_acodec: couldn't find codec for "" > > >> > > >> ------------------------------ > > >> > > >> Is Cinelerra very picky on the video files it can use or am I making a > > >> mistake here? > > >> > > >> _______________________________________________ > > >> Cinelerra mailing list > > >> [email protected] > > >> https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra > > >> > > > > > > _______________________________________________ > > > Cinelerra mailing list > > > [email protected] > > > https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra > > > > > > > _______________________________________________ > > Cinelerra mailing list > > [email protected] > > https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra > > > > _______________________________________________ > Cinelerra mailing list > [email protected] > https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
