Am 12.08.2011 um 19:50 schrieb Dan Dennedy: > On Fri, Aug 12, 2011 at 1:14 AM, Marco Gittler <ma...@gitma.de> wrote: >> >> Am 12.08.2011 um 08:05 schrieb Dan Dennedy: >> >>> On Thu, Aug 11, 2011 at 10:20 PM, Marco Gittler <ma...@gitma.de> wrote: >>>> >>>> Am 11.08.2011 um 22:54 schrieb Dan Dennedy: >>>> >>>>> On Thu, Aug 11, 2011 at 10:33 AM, Marco Gittler <ma...@gitma.de> wrote: >>>>>> Hi >>>>>> >>>>>> i made an mlt plugin, that uses the stabilization from >>>>>> http://vstab.sourceforge.net/. >>>>>> First tests are working very good. >>>>> >>>>> What a nice contribution! >>>> :) >>>>> >>>>>> There a lots of speed up to be done (cache calculated values in a file, >>>>>> for later usage). >>>>> >>>>> I have not looked at this yet, but can you simply put the calculated >>>>> values in a string property (colon-delimited list of numbers or json >>>>> ala rotoscoping). Then, when serializing a mlt composition to xml, it >>>>> will be saved. Next, when loading a mlt xml, the plugin can use the >>>>> values from the property instead of calculating them? >>>> i implemented this now. >>>> but it looks first it is not working. but i found out, the filter will >>>> have 2 runs with the video file, started with >>>> melt ~/Desktop/IMG_0286.MOV -filter videostab -verbose >>>> >>>> on the first run it "deshakes" for 38 frames (and saves the values) >>>> on 2nd run (the visible on) there are 45 (correct length) frames. >>>> how can the first (false length) run be prevented, else the vector data >>>> are not correct ? >>>> >>>> i had also a first run with 45 frames (a lucky moment) , then it will >>>> work perfect. >>> >>> It sounds like in the first run, it is frame-dropping if you are using >>> the sdl consumer. Try running with '-consumer sdl real_time=-1'. Hmm.. >>> if you run the first pass with '-consumer xml:test.mlt' to save the >>> values then it will not run through all of the frames, so that mode of >>> operation will not work as I originally thought. I think we need to >>> change the XML consumer to add an option to iterate through each >>> frame. This weekend I will download your plugin and figure out what to >>> do. >> >> some more test with other videos are working. it seems that the problem >> exists only with video @30fps >> the first run will then be done with 38 frames (46@30 fps= 38 @25 fps with >> the same time to run) >> 25fps videos does not have this "bug". >> >> so i don't know if this must be fixed, or if this is a "video profile" thing >> that must be set for this. >> >> melt -profile ntsc_dvd ~/Desktop/IMG_0286.MOV -filter videostab -verbose and >> melt -profile pal_dvd ~/Desktop/IMG_0286.MOV -filter videostab -verbose >> the video has every time 38 frame (on the 2 runs) > > Unless you made those profiles yourself, they do not exist. See 'melt > -query profiles' to see a list of what is "installed." Try using > dv_ntsc and dv_pal. >
You'r right. The profiles ares not installed, but i wonder now, why the number of frames in the first and second run are different. same video ( 30fps short video from phone) , with dv_pal, dv_ntsc and without profile profile 1st run 2nd run without 38 46 dv_pal 38 38 dv_ntsc 45 45 It looks like, it has something to do with the missing profile. For work with kdenlive, this would be no problem, since there will be a profile set up. Only for simple test on command line without profile this would harm the result. regards marco >> >> melt ~/Desktop/IMG_0286.MOV -filter videostab -verbose >> will have first run 38, second 46 frames. (it is a short video from an >> iPhone) >> >> regarde marco >> >>> >>>> regards marco >>>> >>>>> >>>>> -- >>>>> +-DRD-+ >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> Get a FREE DOWNLOAD! and learn more about uberSVN rich system, >>>>> user administration capabilities and model configuration. Take >>>>> the hassle out of deploying and managing Subversion and the >>>>> tools developers use with it. >>>>> http://p.sf.net/sfu/wandisco-dev2dev >>>>> _______________________________________________ >>>>> Mlt-devel mailing list >>>>> mlt-de...@lists.sourceforge.net >>>>> https://lists.sourceforge.net/lists/listinfo/mlt-devel >>>> >>>> >>> >>> >>> >>> -- >>> +-DRD-+ >>> >>> ------------------------------------------------------------------------------ >>> Get a FREE DOWNLOAD! and learn more about uberSVN rich system, >>> user administration capabilities and model configuration. Take >>> the hassle out of deploying and managing Subversion and the >>> tools developers use with it. >>> http://p.sf.net/sfu/wandisco-dev2dev >>> _______________________________________________ >>> Mlt-devel mailing list >>> mlt-de...@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/mlt-devel >> >> > > > > -- > +-DRD-+ > > ------------------------------------------------------------------------------ > FREE DOWNLOAD - uberSVN with Social Coding for Subversion. > Subversion made easy with a complete admin console. Easy > to use, easy to manage, easy to install, easy to extend. > Get a Free download of the new open ALM Subversion platform now. > http://p.sf.net/sfu/wandisco-dev2dev > _______________________________________________ > Mlt-devel mailing list > mlt-de...@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mlt-devel
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