[libcamera-devel] libcamera on pinephone
Rafael Diniz
rafael at riseup.net
Sun Jul 3 15:18:03 CEST 2022
With stock libcamera I can not get qcam working here. I get:
(some sensors warnings...)
[0:39:35.513864964] [5059] WARN V4L2 v4l2_pixelformat.cpp:295
Unsupported V4L2 pixel format JPEG
[0:39:35.514260589] [5059] WARN V4L2 v4l2_pixelformat.cpp:295
Unsupported V4L2 pixel format JPEG
[0:39:35.514607297] [5059] WARN V4L2 v4l2_pixelformat.cpp:295
Unsupported V4L2 pixel format JPEG
[0:39:35.514932172] [5059] WARN V4L2 v4l2_pixelformat.cpp:295
Unsupported V4L2 pixel format JPEG
[0:39:35.515247422] [5059] WARN V4L2 v4l2_pixelformat.cpp:295
Unsupported V4L2 pixel format JPEG
[0:39:35.515553922] [5059] WARN V4L2 v4l2_pixelformat.cpp:295
Unsupported V4L2 pixel format JPEG
[0:39:35.515863172] [5059] WARN V4L2 v4l2_pixelformat.cpp:295
Unsupported V4L2 pixel format JPEG
[0:39:35.516295714] [5059] WARN V4L2 v4l2_pixelformat.cpp:295
Unsupported V4L2 pixel format JPEG
[0:39:35.516623505] [5059] WARN V4L2 v4l2_pixelformat.cpp:295
Unsupported V4L2 pixel format JPEG
[0:39:35.516936630] [5059] WARN V4L2 v4l2_pixelformat.cpp:295
Unsupported V4L2 pixel format JPEG
[0:39:44.010041343] [5051] INFO Camera camera.cpp:1029 configuring
streams: (0) 1600x1200-SBGGR8
Failed to set viewfinder format
[0:39:52.372775513] [5051] INFO Camera camera.cpp:1029 configuring
streams: (0) 1600x1200-SBGGR8
Failed to set viewfinder format
And then I get no image in qcam window, after selecting the camera.
Rafael
On 7/1/22 18:11, Pavel Machek via libcamera-devel wrote:
> Hi!
>
>> Basic testing with cam utility
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> The ``cam`` utility can be used for basic testing. You can list the cameras
>> detected on the system with ``cam -l``, and capture ten frames from the first
>> camera and save them to disk with ``cam -c 1 --capture=10 --file``. See
>> ``cam -h`` for more information about the ``cam`` tool.
>
> Ok, so I have cam and qcam working, for example:
>
> [41:27:19.115361498] [79897] INFO Camera camera.cpp:1029 configuring streams: (0) 1280x720-SBGGR8
>
> I even have YUYV8 working, at lower resolutions. Full resolution is
> not working for some reason. Anyway...
>
> + formats.push_back(V4L2PixelFormat(V4L2_PIX_FMT_SBGGR8)); // Has problems at resolutions < 1280x720
> + if (code == MEDIA_BUS_FMT_YUYV8_2X8)
> + formats.push_back(V4L2PixelFormat(V4L2_PIX_FMT_YUYV)); // Has problems at resolutions > 1280x720
> + if (code == MEDIA_BUS_FMT_UYVY8_2X8)
> + formats.push_back(V4L2PixelFormat(V4L2_PIX_FMT_YUV420)); // Causes assertion
> + if (code == MEDIA_BUS_FMT_RGB565_2X8_LE)
> + formats.push_back(V4L2PixelFormat(V4L2_PIX_FMT_RGB565)); // no viewfinder available
> + if (code == MEDIA_BUS_FMT_JPEG_1X8)
> + formats.push_back(V4L2PixelFormat(V4L2_PIX_FMT_JPEG)); // No luck
> return formats;
>
> I guess going with gstreamer framework is the next step.
>
> $ gst-launch-1.0 libcamerasrc ! video/x-bayer,width=1280,height=720 !
> filesink location=/tmp/delme.unk ; ls -al /tmp/delme.unk
> WARNING: erroneous pipeline: could not link libcamerasrc0 to filesink0, libcamerasrc0 can't handle caps video/x-bayer, width=(int)1280, height=(int)720
>
> What's the problem with bayer? Camera supplies it, so libcamera should
> be able to supply it, too...?
>
> I tried to do:
>
> export GST_DEBUG=libcamera*:7
> export GST_PLUGIN_PATH=$(pwd)/build/src/gstreamer
>
> gst-launch-1.0 libcamerasrc camera-name=/base/i2c-csi/rear-camera at 4c ! video/x-raw,width=12\
> 80,height=720,format=YUYV,colorimetry=bt709,framerate=30/1 ! filesink location=/tmp/delme.u\
> nk ; ls -al /tmp/delme.unk
>
> I get: And I'm not sure how this is supposed to work.
> gstlibcamerasrc.cpp does not seem to pass requested
> width/height/pixelformat from gstreamer parameters to libcamera.
>
> [41:57:46.409580451] [80813] WARN V4L2 v4l2_pixelformat.cpp:295 Unsupported V4L2 pixel format JPEG
> [41:57:46.409804919] [80813] ERROR V4L2 v4l2_subdevice.cpp:466 'ov5640 3-004c': Unable to set format on pad 0: Invalid argument 2592x1944 code 16385 colorspace 0
> [41:57:46.410829628] [80813] ERROR SimplePipeline simple.cpp:1268 Searching for device
> 0:00:07.442555063 80812 0x559321f600 INFO libcamerasrc gstlibcamerasrc.cpp:240:gst_libcamera_src_open:<libcamerasrc0> Using camera '/base/i2c-csi/rear-camera at 4c'
> Pipeline is live and does not need PREROLL ...
> 0:00:07.444400306 80812 0x5593390c00 DEBUG libcamerasrc gstlibcamerasrc.cpp:358:gst_libcamera_src_task_enter:<libcamerasrc0> Streaming thread has started
> Pipeline is PREROLLED ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> 0:00:07.447466808 80812 0x5593390c00 WARN libcamerasrc gstlibcamerasrc.cpp:474:gst_libcamera_src_task_enter:<libcamerasrc0> error: Internal data stream error.
> 0:00:07.447573438 80812 0x5593390c00 WARN libcamerasrc gstlibcamerasrc.cpp:474:gst_libcamera_src_task_enter:<libcamerasrc0> error: streaming stopped, reason not-negotiated (-4)
> ERROR: from element /GstPipeline:pipeline0/GstLibcameraSrc:libcamerasrc0: Internal data stream error.
> Additional debug info:
> ../src/gstreamer/gstlibcamerasrc.cpp(474): gst_libcamera_src_task_enter (): /GstPipeline:pipeline0/GstLibcameraSrc:libcamerasrc0:
> streaming stopped, reason not-negotiated (-4)
> Execution ended after 0:00:00.003048210
> Setting pipeline to NULL ...
> 0:00:07.448231257 80812 0x5593390c00 DEBUG libcamerasrc gstlibcamerasrc.cpp:490:gst_libcamera_src_task_leave:<libcamerasrc0> Streaming thread is about to stop
> 0:00:07.448946661 80812 0x559321f600 DEBUG libcamerasrc gstlibcamerasrc.cpp:508:gst_libcamera_src_close:<libcamerasrc0> Releasing resources
> Freeing pipeline ...
> -rw-r--r-- 1 mobian mobian 0 Jul 1 23:04 /tmp/delme.unk
> mobian at mobian:~/g/libcamera$
>
> Best regards,
> Pavel
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