2017-10-13 0:24 GMT+02:00 James Almer <jamr...@gmail.com>: > On 10/12/2017 7:19 PM, Carl Eugen Hoyos wrote: >> 2017-10-13 0:12 GMT+02:00 James Almer <jamr...@gmail.com>: >>> On 10/12/2017 6:50 PM, Carl Eugen Hoyos wrote: >>>> 2017-10-12 23:45 GMT+02:00 James Almer <jamr...@gmail.com>: >>>>> On 10/12/2017 6:41 PM, Michael Niedermayer wrote: >>>> >>>>>> also video4linux is gone >>>>>> >>>>>> ./configure >>>>>> config.h:#define CONFIG_V4L2_INDEV 0 >>>>>> >>>>>> and with a branch with all that reverted: >>>>>> ./configure >>>>>> config.h:#define CONFIG_V4L2_INDEV 1 >>>>> >>>>> v4l2 is not autodetected. >>>> >>>> I tested several old versions, for the last 10 years, >>>> v4l2 indev was auto-detected. >>>> >>>> From tests with really old versions I know that >>>> video4linux (1) was always auto-detected (or >>>> auto-enabled). >>>> >>>> Carl Eugen >>> >>> configure has the line >>> >>> --enable-libv4l2 enable libv4l2/v4l-utils [no] >>> >>> And before the commit i mentioned, it had the line >>> >>> libv4l2_indev_deps="libv4l2" >>> >>> If you check alldevices.c, there's no indev called "libv4l2_indev", only >>> one called "v4l2_indev". >>> Since the latter had no dependency on libv4l2, it was of course always >>> enabled by default. I changed that in 734ed38931 (see ticket #6729, >>> where doing that fixed a failure). >>> >>> So that indev being auto-enabled might have been a mistake all this time. >> >> Sorry, what are you talking about? >> v4l2 was added in 2006 and auto-detected ever since. >> Before 2006, there was already v4l (1) which was >> auto-enabled since forever afair. >> >> There is a helper library called libv4l2 that - luckily - >> is not auto-detected and shouldn't be. > > So v4l2_indev should not depend on libv4l2?
No, definitely not. > Any idea why doing that fixed ticket #6729? Iiuc, it disabled v4l2 so all related build errors were fixed. Since I am so slow, could you explain what issues were fixed by 6dfcbd80? Thank you, Carl Eugen _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
