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[16:04] <mchehab> hverkuil: ping
[16:05] <hverkuil> mchehab: pong
[16:06] <mchehab> I'm thinking about how to properly report the resolutions on atomisp driver... as it has a scaler, the resolution ranges from 32x48 to the max res of the sensor...
[16:07] <mchehab> however, the framerates can be different depending on the sensor's resolution
[16:07] <hverkuil> ENUM_FRAMEINTERVALS depends on the resolution, so it can return the correct framerates.
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[16:08] <mchehab> yes, and this works fine for discrete intervals
[16:09] <mchehab> and it would also support doing that with step-wise and continuous intervals... I jt not sure if 
[16:09] <mchehab>  and it would also support doing that with step-wise and continuous intervals...
[16:10] <mchehab> but I'm not sure what happens if it reports two step-wise intervals, e. g. one ranging from 32x48 to 1200x900 and the other from 1200x902 to 1200x1600
[16:10] <mchehab> from API PoV, that sounds OK, but would this cause troubles on existing apps?
[16:12] <mchehab> also, if one wants a resolution like 900x1200, the atomisp driver will get the highest resolution (1200x1600). 
[16:12] <hverkuil> You mean that for sizes 32x48 - 1200x900 one stepwise frame interval is returned and for sizes 1200x902 - 1200x1600 a different stepwise frame interval is returned?
[16:12] <mchehab> yes
[16:12] <hverkuil> That is fine, shouldn't be a problem.
[16:13] <mchehab> from API PoV, it shouldn't be a problem, but I'm wondering if apps won't mangle with that..
[16:15] <mchehab> hmm... to report it properly, the two stepwise sizes would actually be:
[16:15] <mchehab> - 32x48 to 1200x900
[16:16] <hverkuil> I don't see why. It is more likely that apps do not support V4L2_FRMIVAL_TYPE_STEPWISE since it is not very common. Most drivers use V4L2_FRMIVAL_TYPE_DISCRETE.
[16:16] <mchehab> - 32x902 to 1200x1600
[16:16] <mchehab> as anything asking for a vert resolution bigger than 900 will force the driver to use the higher resolution
[16:18] <mchehab> gstreamer has support for stepwise... I remember I had to submit a bugfix to it once, while testing some em28xx-based cameras
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