Tim Boykett wrote: > > hi, > > has anyone had any experience using (multiple) gem(s) > to output several videos simultaneously on a multiheaded > (linux) box? > > the questions that arise as we ponder this is how much CPU gets > used to decode the video, how much to render, how much the > graphics cards can take away effort from the CPU, what sort of > idea of harddisks can make the data transfer more efficent, etc. > > any experiences? any suggestions? > > cheers, > > tim
hello with a P4 2.ghz and very important, a graphic card with its own memory (with restricted drivers, opengl support, here nvüdüa ) under ubuntu can i buffer (with pix_buffer) more than 8 videos all at 16 seconds length but this are not videos from a harddisk, but directly from one webcam --> cpu uses less than 10%...so the graphiccard does here his job very well. but at this point pd has nothing to handle with the harddisk. i dont have experiences reading non-live videos (from harddisk) and Gem. When i want to render the gemwindow to harddisk with pix_record and pix_snap i have a cpu-load of 100%, tested with all available codecs.. sometimes pd crashes, sometimes i got corrupt movie-files, few times i got playable movies. i got not a stable solution now for rendering. cio moritz _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
