Hans, It is hard for me to get the v4l2-apps compile on my build environment. Unless someone can help me to resolve the build issue, I wouldn't be able to update the v4l2-apps or Alternately someone volunteer to add this support based on the API.
Thanks and regards, Murali Karicheri Software Design Engineer Texas Instruments Inc. Germantown, MD 20874 phone: 301-407-9583 email: m-kariche...@ti.com >-----Original Message----- >From: linux-media-ow...@vger.kernel.org [mailto:linux-media- >ow...@vger.kernel.org] On Behalf Of Karicheri, Muralidharan >Sent: Thursday, November 19, 2009 11:26 AM >To: Hans Verkuil; Mauro Carvalho Chehab >Cc: linux-media@vger.kernel.org >Subject: RE: Help in adding documentation > >BTW, > >I don't know what is qt4/qt3 that you are referring to. >I see qv4l2 in the directory v4l2-apps/qv4l2. > >Murali Karicheri >Software Design Engineer >Texas Instruments Inc. >Germantown, MD 20874 >phone: 301-407-9583 >email: m-kariche...@ti.com > >>-----Original Message----- >>From: Hans Verkuil [mailto:hverk...@xs4all.nl] >>Sent: Wednesday, November 18, 2009 2:33 AM >>To: Mauro Carvalho Chehab >>Cc: Karicheri, Muralidharan; linux-media@vger.kernel.org >>Subject: Re: Help in adding documentation >> >>On Wednesday 18 November 2009 08:24:13 Mauro Carvalho Chehab wrote: >>> Hans Verkuil wrote: >>> > On Wednesday 18 November 2009 08:04:10 Mauro Carvalho Chehab wrote: >>> >> Karicheri, Muralidharan escreveu: >>> >>> Mauro, >>> >>> >>> >>> Thanks to your help, I could finish my documentation today. >>> >>> >>> >>> But I have another issue with the v4l2-apps. >>> >>> >>> >>> When I do make apps, it doesn't seem to build. I get the following >>error >>> >>> logs... Is this broken? >>> >> Well... no, it is not really broken, but the build system for v4l2- >>apps >>> >> needs serious improvements. There are some know issues on it: >>> >> - It doesn't check/warn if you don't have all the dependencies >>> >> (qv4l2 and v4l2-sysfs-path require some development libraries >>> >> that aren't available per default when gcc is installed - I >>> >> think the other files there are ok); >>> >> - make only works fine when calling on certain directories (it >used >>to work >>> >> fine if you call it from /v4l2-apps/*) - but, since some >patch, it >>now requires >>> >> that you call make from /v4l2-apps, in order to create v4l2- >>apps/include. >>> >> After having it created, make can be called from a /v4l2-apps >>subdir; >>> >> - for some places (libv4l - maybe there are other places?), you >need >>to >>> >> have the latest headers installed, as it doesn't use the one >at the >>tree. >>> >> - qv4l2 only compiles with qt3. >>> > >>> > I have a qt4 version available in my v4l-dvb-qv4l2 tree. Just no time >>to work >>> > on a series of patches to merge it in the main repo. And it is missing >>string >>> > control support. >>> > >>> > If anyone is interested, then feel free to do that work. This new qt4 >>version >>> > is much better than the qt3 version. >>> >>> IMO, the better is to have both versions on separate dirs, and let the >>building >>> system to check if qt4 is available. If so, build the qt4 version >instead >>of >>> qt3 (a configure script, for example). Otherwise, warn users that it is >>compiling >>> a legacy application, due to the lack of the proper dependencies. >> >>I'm not going to maintain the qt3 version. Personally I think it is >>pointless >>having two tools for this and it only creates confusion and unnecessary >>maintenance cost. Of course, all this is moot as long as the new version >is >>still unmerged. >> >>BTW: everything inside v4l2-apps should use the generated headers inside >>v4l2-apps/include. These are generated from the headers in the tree and >yes, >>it would be nice if v4l2-apps/Makefile would have a proper dependency to >>generate them. Now only the top-level Makefile knows about it. After that >>include directory is generated you can do a make in v4l2-apps. >> >>But libv4l should use those headers and not the installed headers. >>Something >>may have been broken since when I last wrote that code. >> >>Regards, >> >> Hans >> >>-- >>Hans Verkuil - video4linux developer - sponsored by TANDBERG Telecom > >-- >To unsubscribe from this list: send the line "unsubscribe linux-media" in >the body of a message to majord...@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
