On Mon 2017-06-26 08:05:04, H. Nikolaus Schaller wrote:
> Hi Pavel,
>
> > Am 25.06.2017 um 11:18 schrieb Pavel Machek <pavel@xxxxxx>:
> >
> > Hi!
> >
> >> * unfortunately we still get no image :(
> >>
> >> The latter is likely a setup issue of our camera interface (OMAP3 ISP = Image Signal Processor) which
> >> we were not yet able to solve. Oscilloscoping signals on the interface indicated that signals and
> >> sync are correct. But we do not know since mplayer only shows a green screen.
> >
> > What mplayer command line do you use? How did you set up the pipeline
> > with media-ctl?
> >
> > On kernel.org, I have tree called camera-fw5-6 , where camera works
> > for me on n900. On gitlab, there's modifed fcam-dev, which can be used
> > for testing.
>
> We did have yet another (non-DT) camera driver and media-ctl working in with 3.12.37,
> but had no success yet to update it to work with modern kernels or drivers. It
> is either that the (newer) drivers missing something or the media-ctl has changed.
>
> Here is the log of our scripts with Hugues' driver and our latest setup:
>
> root@letux:~# ./camera-demo sxga
> DISPLAY=:0
> XAUTHORITY=tcp
> Camera: /dev/v4l-subdev8
> Setting mode sxga
> media-ctl -r
> media-ctl -l '"ov965x":0 -> "OMAP3 ISP CCDC":0[1]'
> media-ctl -l '"OMAP3 ISP CCDC":1 -> "OMAP3 ISP CCDC output":0[1]'
> media-ctl -V '"ov965x":0 [UYVY2X8 1280x1024]'
> media-ctl -V '"OMAP3 ISP CCDC":0 [UYVY2X8 1280x1024]'
> media-ctl -V '"OMAP3 ISP CCDC":1 [UYVY 1280x1024]'
Ok, so you are using capture, not preview.
You may want to try this one:
commit 0eae9d2a8f096f703cbc8f9a0ab155cd3cc14cef
Author: Pavel <pavel@xxxxxx>
Date: Mon Feb 13 21:26:51 2017 +0100
omap3isp: fix VP2SDR bit so capture (not preview) works
This is neccessary for capture (not preview) to work properly on
N900. Why is unknown.
Pavel
> ### starting mplayer in sxga mode ###
> mplayer tv:// -vf rotate=2 -tv driver=v4l2:device=/dev/video2:outfmt=uyvy:width=1280:height=1024:fps=15 -vo x11
> MPlayer2 2.0-728-g2c378c7-4+b1 (C) 2000-2012 MPlayer Team
>
> Playing tv://.
> Detected file format: TV
> Selected driver: v4l2
> name: Video 4 Linux 2 input
> author: Martin Olschewski <olschewski@xxxxxxxxxxxxxxxx>
> comment: first try, more to come ;-)
> v4l2: ioctl get standard failed: Invalid argument
> Selected device: OMAP3 ISP CCDC output
> Capabilities: video capture video output streaming
> supported norms:
> inputs: 0 = camera;
> Current input: 0
> Current format: unknown (0x0)
> tv.c: norm_from_string(pal): Bogus norm parameter, setting default.
> v4l2: ioctl enum norm failed: Inappropriate ioctl for device
> Error: Cannot set norm!
> Selected input hasn't got a tuner!
> v4l2: ioctl set mute failed: Inappropriate ioctl for device
> v4l2: ioctl query control failed: Inappropriate ioctl for device
> v4l2: ioctl query control failed: Inappropriate ioctl for device
> v4l2: ioctl query control failed: Inappropriate ioctl for device
> v4l2: ioctl query control failed: Inappropriate ioctl for device
> v4l2: ioctl streamon failed: Broken pipe
> [ass] auto-open
> Opening video filter: [rotate=2]
> VIDEO: 1280x1024 15.000 fps 0.0 kbps ( 0.0 kB/s)
> Could not find matching colorspace - retrying with -vf scale...
> Opening video filter: [scale]
> [swscaler @ 0xb5ca9980]using unscaled uyvy422 -> yuv420p special converter
> VO: [x11] 1024x1280 => 1024x1280 Planar YV12
> [swscaler @ 0xb5ca9980]No accelerated colorspace conversion found from yuv420p to bgra.
> Colorspace details not fully supported by selected vo.
> Selected video codec: RAW UYVY [raw]
> Audio: no sound
> Starting playback...
> V: 0.0 10/ 10 ??% ??% ??,?% 0 0 $<3>
>
>
> MPlayer interrupted by signal 2 in module: filter_video
> V: 0.0 11/ 11 ??% ??% ??,?% 0 0 $<3>
> v4l2: ioctl set mute failed: Inappropriate ioctl for device
> v4l2: 0 frames successfully processed, 0 frames dropped.
>
> Exiting... (Quit)
> root@letux:~#
>
> BR and thanks,
> Nikolaus
>
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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