For anyone interested in testing the new patch, it is currently in the experimental branch of the Cinelerra-ppa for Ubuntu (natty only at the moment):
https://launchpad.net/~cinelerra-ppa/+archive/cinelerra-exp Thanks in advance for anybody willing to test it (in particular the v4l performance). Best, Nicola From: feran...@hotmail.com To: cinelerra@skolelinux.no Subject: RE: [CinCV] v4l1 patch, try2 Date: Mon, 30 May 2011 17:01:40 -0700 Hi Rafael, the version packaged in the PPA is designed so that the binary of cinelerra isn't launched directly, but through a script that hadles some localization issues. I added the extra line there, so the user will run the the LD_PRELOAD every time cinelerra is launched. I know this isn't perfect, as many people would not want to have it. But the script can be modified to remove that extra line.... Best, Nicola > Subject: RE: [CinCV] v4l1 patch, try2 > From: raf...@riseup.net > To: cinelerra@skolelinux.no > Date: Mon, 30 May 2011 11:12:48 -0700 > > Hi Nicola, > Just as curiosity, how do you handle LD_PRELOAD from within the package? > > Best regards, > Rafael Diniz > > > > > Rafael, > > > > thanks again for the patch. The last version sounds reasonable. I upload > > test builds in the PPA with it. Regarding the preloading of libv4lcompat, > > I handle that directly within the package (by requiring installation of > > the proper library). > > > > It'd be great if people with v4l-needing hardware could test it, once it's > > available. > > > > Thanks again, > > Nicola > > > > > > > > > > > >> Subject: Re: [CinCV] v4l1 patch, try2 > >> From: raf...@riseup.net > >> To: cinelerra@skolelinux.no > >> Date: Mon, 30 May 2011 10:06:44 -0700 > >> > >> People, > >> Thinking a little, after Einar email, I reached a patch that: > >> > >> - keeps v4l support as always for people using kernel <= 2.6.37 > >> - keeps v4l support for people using kernel >= 2.6.38, needs > >> LD_PRELOAD'ing of libv4l1compat.so > >> - cinelerra compiles fine with and without libv4l > >> - adds videodev.h to our tree > >> > >> ; ) > >> > >> > >> > >> > Hi Einar, > >> > I must disagree with you. > >> > > >> > If you take a look at the old videodev.h, there is this statement: > >> > > >> > * Video for Linux version 1 - OBSOLETE > >> > * > >> > * Header file for v4l1 drivers and applications, for > >> > * Linux kernels 2.2.x or 2.4.x. > >> > * > >> > * Provides header for legacy drivers and applications > >> > > >> > > >> > And now it's gone. > >> > There is no such device you're saying that have only v4l1 driver. V4L1 > >> is > >> > not present in kernel for a long long time (only the V4L1 > >> compatibility > >> > layer was there). > >> > Anyone using kernel 2.4? > >> > IMHO, the correct way to support V4L1 is using libv4l. > >> > > >> > Of course we could commit videodev.h inside our cinelerra tree in > >> order to > >> > get rid of the libv4l dependency for those still using kernel <= > >> 2.6.37 or > >> > that don't need V4L support at all. > >> > > >> > Best regards, > >> > Rafael Diniz > >> > > >> > > >> >> Hi. > >> >> > >> >> You must not unconditionally remove v4l1 support. I think that > >> >> configure must detect v4l1 and if it does not exist use libv4l1. > >> There > >> >> may be some older devices, that have only v4l1 drivers. We have to > >> >> leave user an option to use older kernel with v4l1 support. Option to > >> >> fully remove v4l1 would be nice too. > >> >> > >> >> Einar > >> > > >> > > >> > > >> > _______________________________________________ > >> > Cinelerra mailing list > >> > Cinelerra@skolelinux.no > >> > https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra > >> > > > > > > > _______________________________________________ > Cinelerra mailing list > Cinelerra@skolelinux.no > https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
