Hi Murray My work flow with Cinelerra first involve converting my video files to an intermediate codec: Mjpeg. I use the program ffmpeg with a command line similar to:
ffmpeg -i input_file -vcodec mjpeg -qscale 0 -s 1920x1080 -pix_fmt yuvj420p -acodec copy output_file I use a .mov extension for the output file I then load the files in Cinelerra and edit them. For rendering I use the following settings: File format: Quicktime for Linux audio track rendering: Twos complement, 16 bits Video: YUV 4:2:0 Planar This produces very large files, of about 4 Gig/ minute for 1080p I then use ffmpeg again to convert the video to a format that I will use elsewhere. For instance to upload video on vimeo and covert it to 720p, I use ffmpeg -i input_file -vcodec libx264 -vb 2000k -s 1280x720 -acodec libmp3lame -ab 256k output_file This work flow has been working for me, you can experiment with different settings in terms of codecs, bitrate, qscale and others settings to get the file format that you need. There is also the Arista transcoder to convert files from one format to an other. It has presets for common displaying means: pc, tablet, phones, etc. Hope it helps Félix-A. Le jeudi 12 janvier 2012 à 16:00 -0800, Murray Strome a écrit : > David, > > > Thank you for your assistance. I was pretty sure that some people were > using Cinelerra to do real production work. I decided to give it > "another whirl" today. I removed the version I had installed and > started following the tutorial "Cinelerra Basics in 10 steps", > http://www.g-raffa.eu/Cinelerra/HOWTO/basics.html and the version that > seems to get installed is 1.2.2-0.3~ppa1~oneiric1 according to > Synaptic; I don't see how to tell which it is any other way. > > > I then created the .bcast folder by doing: > wget http://www.g-raffa.eu/Cinelerra/HOWTO/Cinelerra_rc-NTSC.tar.gz && > tar xvf Cinelerra_rc-NTSC.tar.gz && mv > NTSCCinelerraSettings/Cinelerra_rc .bcast/Cinelerra_rc && rm > Cinelerra_rc-NTSC.tar.gz > > > and extracting the stuff to my home folder. > > > I decided that I would try to work on a video I am preparing from a > concert I recorded using three cameras and two audio recorders. I > started with an interim HD .mp4 1920X1080 file which, according to > ffmpeg has the following metadata: > Metadata: > major_brand : mp42 > minor_version : 1 > compatible_brands: mp42isom > creation_time : 2012-01-04 13:17:17 > Duration: 01:02:09.12, start: 0.000000, bitrate: 12197 kb/s > Stream #0.0(eng): Video: mpeg4, yuv420p, 1920x1080 [PAR 1:1 DAR > 16:9], 11999 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc > Metadata: > creation_time : 2012-01-04 13:17:17 > Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, s16, 191 kb/s > Metadata: > creation_time : 2012-01-04 13:17:17 > Stream #0.2(eng): Data: mp4s / 0x7334706D, 4320 kb/s > Stream #0.3(eng): Data: mp4s / 0x7334706D, 3840 kb/s > > > Playing it in VLC, it says essentially the same thing: codecs: Video > - MPEG-4 Video (mp4v); Audio -- MPEG AAC Audio (mp4a). > > > Anyway, if I try to load that file into Cinelerra, it dies instantly > with no error or warning messages. > > > It obviously does not like the format! I don't know to what I should > convert it or how. > > > > Are there other settings that I should change from whatever gets set > up by the .bcast I used from the tutorial? > > > I decided to just play around with a regular .mpg file, which I can at > least load. I am not sure what to do next, especially when I go to > Render it after some extremely simple edits. I am pretty sure that the > suggestion "OGG Theora/Vorbis" is NOT what I want. I tried > Windows .AVI, simply because that seemed to be the easiest to render > both the video and audio, but I don't think that would be what I want > if I were trying to create HD video with audio at either 1080p or even > 720p. > > > The resulting video was HUGE, and would not play in VLC Player. In > Gnome Player, it says the codec is yuv2. I will have to wait to see if > it can be opened with anything in Windows. > > > I am not sure what to try next. Any hints? > > > Thanks, > > > Murray > > > > --- On Wed, 1/11/12, David Armstrong <bod...@netspace.net.au> wrote: > > From: David Armstrong <bod...@netspace.net.au> > Subject: Re: [CinCV] Easy to understand work flows with > Cinelerra > To: cinelerra@skolelinux.no > Received: Wednesday, January 11, 2012, 1:50 AM > > Murray, > > Here is a brief reply from my experiences as a user of > Cinelerra. > > First up, I have been using it solidly for about 4 years. I > produce mainly short videos for the web of athletics, but also > concerts, events and a bit of corporate. Some concerts run to > over two hours, but most pieces are 4 to 8 minutes for the > web. I started out with SD (PAL 25fps), but now work mainly > with with 720p HD. I chose 720p as it is significant step up > in output quality from SD, progressive being suitable for > sports, and not over-taxing my current PC config (I struggle a > bit with 1080p in current set up). > > I picked up Cinelerra because of cost. What I saved on > hardware and software (for a Mac and FCP), I bought video > equipment. Everytime I think about switching to mac, I have a > good lie down then spend the money on video equipment. Adobe > Premier (or Production suite), be it on PC or mac, is also > expensive. Latest FCP X is down in price, and mac hardware > appears to be getting cheaper, but there is still a gap > between buying and me building my own PC and installing linux. > > As a an IT worker, I am familiar with linux and command line > interfacing. As such, the technical aspects of it don't faze > me much, and a few times that has saved my bacon. For anyone > with a phobia about computer technicalities, Cinelerra might > be somewhat frustrating. But having said that, the recent CV > version has become much more stable to an extent that maybe > the issues of a few years back have subsided. > > As my requirements border on the professional (deadlines, > quality, timeliness etc.), I have found Cinelerra to satisfies > my requirements. There are many things I take for granted that > I might not appreciate. I use multi video and audio tracks > all the time, have multi-camera situations, graphic overlays, > colour correction, timer overlays, audio mixing etc etc. There > may be things I do that I can't do on the big two (FCP and > Premiere), but as I don't know those products intimately, I > can't compare. Even after 4 years, I keep finding new things > about Cinelerra. > > I have dabbled a bit with Kino, Kdenlive and Open Shot, but > there are key elements that do not meet my demands - either > missing or I don't know how to extract from those programs. I > do use dvgrab (part of Kino) to capture from tape and Kdenlive > sometimes for transcoding into a codec best suited for > Cinelerra. But now with DTE, dvgrab not used as much. FFMPEG > is a good companion to shape things for inputs, as well if > some peculiar output is required. > > Good references are "Cinelerra for Grandma" and "Newbies > Front" (by Rafaella @ http://www.g-raffa.eu/Cinelerra/), plus > some really good tutorials on youTube. It took me some time to > get into the groove with Cinelerra, but I stay with it as it > still does the job, is powerful (which can get you into > trouble), I am familiar with it, and I would rather invest in > video equipment with any spare coin. It is easy for a newbie > to stuff things up , but being a craft there are no guarantees > with anything in life. > > If money was no object, I would have dived into mac and FCP > years ago. I don't know if I would have been better or worse > off (can't run a parallel universe test on myself), but I > don't complain too much as I keep getting my videos out as > needed. > > Must finish up, as I have a large puddle of videos to edit! > > cheers > David > > > > > On 11/01/12 13:04, Murray Strome wrote: > > For several years now, I have been following the Cinelerra > > project, and have tried doing some video editing with it. > > However, I have not really been able to make use of it. The > > first problem is the confusion surrounding all the > > formats/codecs. Then there is the problem of how to use the > > apparently necessary external programs (e.g. ffmpeg, etc.). > > Finally, I find the whole paradigm to be difficult to > > understand and to use. > > > > I believe that some really good videos have been made using > > Cinelerra, but I have not seen any good tutorials on a > > complete workflowused to create them. I have seen some that > > use or create web videos (like .FLV). > > > > From what little I have seen of Adobe's video editing > > software, the general appearance of Cinelerra seems to mimic > > that a bit. I find Adobe's product to be very unintuitive. > > > > I have been using various versions of Pinnacle Studio (for > > Windows, unfortunately) for many years now. It is one of the > > very few pieces of software that keep me hanging on to > > Windows (income tax software is the other), which I would > > really like to "ditch", especially before Windows 8 takes > > over the world! I find it to be VERY intuitive and easy to > > use (when it works), however, when it does not work, support > > is abysmal. They try, but their technical support people > > are too isolated from their engineering/software development > > people to be able to provide a solution. > > > > While I would really like to do some HD work with Cinelerra, > > I would like to start with see aworkflow for something > > relatively simple. > > > > I would normally start with a video clip in .AVI, .MOV > > or .MPG (720X480 NTSC either 4:3 or 16:9) with sound. I > > would like a very simple workflow that would allow me to > > import such clips, edit them by doing such simple things as > > colour correction, sharpening, pan-zoom, cutting out > > segments, then exporting a file in one of those formats with > > the original sound intact. I have looked at many of the > > tutorials (as well as for ffmpeg), but I have not really > > found anything that I could follow and that would work. I > > realize that it is at least partly because it is difficult > > for me to switch paradigms from Pinnacle to what I suspect > > is the Cinelerra approach: modelled on the Adobe. I have > > played with lots of other software in both Windows (e.g. > > Cyberlink and Nero) and LINUX (avidemux, kdenlive, etc.) but > > I have not found anything nearly as intuitive as Pinnacle > > Studio. > > > > I have also tried Avid Studio (now that Avid has purchased > > Pinnacle), which is a bit more like Adobe or Cinelerra. > > While it shares a much better colour correction capability > > with Cinelerra, it is useless for me as it crashes all the > > time and after nearly a year, the technical support people > > have been unable to figure out why (diagnostics appear to > > somewhere between non-existent to useless). > > > > After all that long-winded preamble, is there a good > > turorial that will tell me how to import NTSC 720X480 4:3 or > > 16:9 with sound (.MPG, .AVI, .MOV or .VOB=MPG), do that > > relatively simple editing outlined above, then export to any > > of those same formats with sound? > > > > I will worry about High Definition (1920X1080p) later, and > > also dealing with multiple tracks can wait till I figure out > > how to do something simpler. > > > > Thanks for any pointers. > > > > Murray > > > > > > _______________________________________________ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
