Nicolas wrote: > > > > hmmm - Cinelerra getting the field order wrong? > > > > > > Exactly. At least with the SVN version I fetched 1 month ago. ...
Note that at least in cinelerra 2.0 there's an checkbox in the "mpeg2" rendering dialog box which says something like "bottom first field order". This appears to affect the yuv4pmeg2 stream header only - it flicks the flag used to indicate the field order without actually affecting the datastream. The datastream sent keeps the field order of the original footage. When constructing the yuv4pmeg2 stream, cinelerra by default appears to assume top-field-first which, while perhaps being appropriate for NTSC-land (which I have no direct experience with) is not right for those of us using PAL (which is always bottom-first). Thus if one is using bottom-field-first material (which is definitely the case if it's PAL-DV) you need to ensure this check box is active (or just do the yuvcorrect thing you mentioned earlier). Having said all that, this may not be your particular problem. :) > > > > Ouch. One would think a problem like that would be fixed quickly, but > > Cinelerra doesn't have mailinglists, etc and getting in touch with > > the developer is difficult (I tried once years ago and never heard > > anything). > > Well, I sent an email to the mailing-list. It's now easy to get in touch > with the developers. I think that bug will be quickly solved, if it's > not already solved in the latest SVN version. Then Steven wrote: > Interesting - at one time there was just 1 developer and he was > impossible to contact. I think we're talking about two different things. Cinelerra *itself* is developed by a single person as Steven said; the developer's website is at http://heroinewarrior.com/index.php3 There is no mailing list and it one generally has to wait for the changelog of a new version to come out before you know the state of any patches submitted. This is the "single developer" Steven was talking about. In an attempt to make development a little more fluid, a group of people set up http://cvs.cinelerra.org/. Yes, they now use SVN - the switch was made a few months ago for various reasons. In any case, this group has a number of active developers, a publically available SVN repository (was CVS up until a few months ago) and effectively acts as a staging ground for improvements to cinelerra before the patches are pushed to heroinewarrior for consideration. As the statement on cvs.cinelerra.org says: This is a branched version of Cinelerra sometimes called Cinelerra-CV. Please visit about section for more information regarding this duality. The "CV" in "Cinelerra-CV" I think stands for "Community Version" or something like that. The "about" page adds: This page offers a collection of user contributed tutorials, some links, and a CVS repository. It is intended for developers and adventurous Linux users who want to contribute to the development of Cinelerra. As to which one is best... I've had mixed results. The Cinelerra-CV release is widely regarded as being more usable generally, but depending on precisely when you grab a snapshipt it can contain invasive bugs. So while Nicolas was refering to Cinelerra-CV, Steven was thinking about the heroinewarrior version. It should be noted that Cinelerra-CV are very particular about calling themselves a branch rather than a fork. When heroinewarrior releases a new version they resync themselves to that version. Their intention is to contribute things back to the heroinewarrior build which is still considered to be the master source. By setting up the SVN stuff as they have, patches get wider testing and refinement much quicker than if they were fed through heroinewarrior, who tends to make about 2 releases a year. Regards jonathan ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
