On Fri, Sep 17, 2010 at 5:51 AM, matm...@t-online.de <matm...@t-online.de> wrote: > Cinelerra Bug Report: HD-Videos extremely slow. > > I'm using Cinelerra-CV 2.1.0-2svn20081020.1 on Debian Lenny. I need it to cut > some HD-Video clips to short movies which are 5 till 9 minutes long. The > source video is rawvideo, yuv420p, 1920x1080 (yuv4mpeg) inside a quicktime > container. And a snippet about of 2 minutes of video material like this needs > to load 4 or 5 minutes till i can see the result in Cinelerra. And then, if i > need to insert another snippet of 40 seconds and if i see i made a mistake > and needs to undo this paste, it takes 10 till 15 minutes of time. And > loading a Project with a video length of 3 Minutes will take nearly 40 > minutes. Only loading a Project? This is very buggy and Cinelerra is not > really usable with this circumstance. > > I have a fast CPU (4 x 3.0 Ghz) and fast SATA harddisks. Either there is a > big bug in Cinelerra, or a very bad concept of loading the data. Cinelerra > seems to read the entire video files several times instead of only open the > project. I never have seen a video software like this. Hope this will be > fixed in near future.
There was an indexing bug in the YUV4MPEG loader that I fixed recently in my repo; you can build directly from my sources or grab the relevant patch. http://git.xiph.org/?p=users/xiphmont/cinelerraCV.git;a=summary I work almost entirely in raw HD yuv4mpeg, several hundred GB worth at a time. With the patch, Cinelerra is very snappy. Monty _______________________________________________ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
