On Sat, Oct 29, 2011 at 2:02 PM, Johannes Bauer <dfnsonfsdu...@gmx.de> wrote: > Am 29.10.2011 22:34, schrieb Johannes Bauer: > >> You mean the half second is incredible? I tried this out today and it I >> am 100% certain. Actually I just removed the Gentoo-version of kdenlive >> (my locally built GIT version conflicts with some audio plugins >> apparently), but I'll happily reemerge the version and reproduce this. >> >> However, even if I report this, I do not know how to increase my >> credibility. Are there any performance debug outputs that I could enable >> to make you believe me? > > Okay, I just did the following: reemerge the Gentoo package. Then I set > a camcorder up to record my PC monitor. > > I could reproduce the fast seeking. However, upon closer looking, it > appears that it does not seek correctly (i.e. not to the desired > position). As such, this is also useless. With the video I played around > first this was not notable as the camera was statically mounted and the > object in question only changed its shape, but didn't move. > > When trying this with a video with much motion, I get lots of > encoding/decoding artifacts and have to seek three to four times to get > a "correct" picture (it seems indeterministic). I can still record it if
OK, I believe this explains the situation. In version 0.4.6 of MLT, a new form of seeking was added for AVCHD to make it clean and accurate. Before this, using AVCHD was as you describe: fast but crappy and therefore unusable. For some reason, even though you are using MLT 0.5.10, it appears to be slipping into that old mode. > you wish, so you don't believe I just made that up. No, its ok. > Seems I'm stuck with the 4 seconds then... this at least works reliably. > Do you have any pointers to transcoding into formats which give a decent > seeking-time-to-disk-space ratio? re-wrap them: ffmpeg -i avchd.mts -vcodec copy -acodec copy -sn avchd.mkv -- +-DRD-+ ------------------------------------------------------------------------------ Get your Android app more play: Bring it to the BlackBerry PlayBook in minutes. BlackBerry App World™ now supports Android™ Apps for the BlackBerry® PlayBook™. Discover just how easy and simple it is! http://p.sf.net/sfu/android-dev2dev _______________________________________________ Kdenlive-devel mailing list Kdenlive-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kdenlive-devel
