Em 26-01-2011 07:47, Hans Verkuil escreveu: >> Hi Hans, >> >> Em 26-01-2011 06:26, Hans de Goede escreveu: >>> Hi All, >>> >>> With v4l1 support going completely away, the question is >>> raised what to do with linux/videodev.h . >>> >>> Since v4l1 apps can still use the old API through libv4l1, >>> these apps will still need linux/videodev.h to compile. >>> >>> So I see 3 options: >>> 1) Keep videodev.h in the kernel tree even after we've dropped >>> the API support at the kernel level (seems like a bad idea to me) >> >> That's a bad idea. >> >>> 2) Copy videodev.h over to v4l-utils as is (under a different name) >>> and modify the #include in libv4l1.h to include it under the >>> new name >>> 3) Copy the (needed) contents of videodev.h over to libv4l1.h >> >> I would do (3). This provides a clearer signal that V4L1-only apps need >> to use libv4l1, or otherwise will stop working. > > I agree with this. > >> Of course, the better is to remove V4L1 support from those old apps. >> There are a number of applications that support both API's. So, it >> is time to remove V4L1 support from them. > > So who is going to do that work? That's the problem... > > But ensuring that they no longer compile is a good start :-) > > Although most have a private copy of videodev.h as part of their sources. The ones that don't have videodev.h will compile-break on distros. So distros will need to do something to keep it working, or they'll just drop those pre-historic beasts. It is the Evolution Theory working for software: to adapt or to be extinguished ;) The ones that are shipped with videodev.h and weren't converted to libv4l might eventually stay there for a longer time, as people will only notice when a bug will be reported. If we know what are those apps, then we can add a blacklist at linuxtv and/or contact interested parties on fixing/removing them. We should touch the tools that we care of. Maybe Devin could change tvtime, we should remove V4L1 driver from xawtv3/xawtv4. Regards, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
