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
