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+--- Thread: camera + megaixel and strange behavior (/showthread.php?tid=14073)
camera + megaixel and strange behavior - streak - 06-02-2021
Hi Guys
Please help me out nail the issue with my camera.
Im using PostmarketOS image and i was using Megapixel camera. Megapixel shows picture from camera (a lot of violet colours) but if i click button to make image it suddently hang megapixel.
No image will be saved anywhere in /home/user dir
i tried to make a workaround to use https://git.sr.ht/~martijnbraam/python-pinecamera
camera.py which doesnt work as well:
im getting something like this
Code:
> ./camera.py still --resolution 720p photo.jpg
Unable to parse link: Invalid argument (22)
Unable to parse link: Invalid argument (22)
Unable to setup formats: Invalid argument (22)
^CTraceback (most recent call last):
File "/usr/lib/python3.8/subprocess.py", line 495, in run
stdout, stderr = process.communicate(input, timeout=timeout)
File "/usr/lib/python3.8/subprocess.py", line 1028, in communicate
stdout, stderr = self._communicate(input, endtime, timeout)
File "/usr/lib/python3.8/subprocess.py", line 1894, in _communicate
self.wait(timeout=self._remaining_time(endtime))
File "/usr/lib/python3.8/subprocess.py", line 1083, in wait
return self._wait(timeout=timeout)
File "/usr/lib/python3.8/subprocess.py", line 1798, in _wait
raise TimeoutExpired(self.args, timeout)
subprocess.TimeoutExpired: Command '['sudo', 'v4l2-ctl', '--device', '/dev/video1', '--stream-mmap', '--stream-to=/tmp/frame.raw', '--stream-count=1', '--stream-skip=5']' timed out after 9.99975883199977 secondsi even tried to use ffmpeg then with options like:
Code:
sudo ffmpeg -f v4l2 -framerate 10 -i /dev/video0 -preset ultrafast /home/user/some-vid.vid
getting:
[video4linux2,v4l2 @ 0xffffb76d2670] Not a video capture device.
/dev/video0: No such device
--------------------------------------------------------------------------------------------------------------------
sudo ffmpeg -f v4l2 -framerate 10 -i /dev/video1 -preset ultrafast /home/user/some-vid.vid
getting:
[video4linux2,v4l2 @ 0xffff90699670] Not a video capture device.
/dev/video1: No such device
--------------------------------------------------------------------------------------------------------------------
sudo ffmpeg -f v4l2 -framerate 10 -i /dev/video2 -preset ultrafast /home/user/some-vid.vid
getting:
[video4linux2,v4l2 @ 0xffffb72a0670] Not a video capture device.
/dev/video2: No such device
--------------------------------------------------------------------------------------------------------------------
sudo ffmpeg -f v4l2 -framerate 10 -i /dev/video3 -preset ultrafast /home/user/some-vid.vid
getting:
[video4linux2,v4l2 @ 0xffff9ba3c670] ioctl(VIDIOC_STREAMON): Broken pipe
/dev/video3: Broken pipe
--------------------------------------------------------------------------------------------------------------------Update 1:
quick look in dmesg after fresh OS start and trying to make a picture in megapixel (where megapixel hangs)
Code:
+[ 124.878718] ov5640 4-004c: firmware upload success
+[ 125.177354] ov5640 4-004c: uploaded firmware didn't start, got to 0x7f, retrying...
+[ 125.477370] ov5640 4-004c: uploaded firmware didn't start, got to 0x7f
+[ 125.477425] ov5640 4-004c: ov5640_set_ctrl_focus: no autofocus firmware loaded
+[ 128.819814] ov5640 4-004c: firmware upload success
+[ 129.117310] ov5640 4-004c: uploaded firmware didn't start, got to 0x7f, retrying...
+[ 129.417331] ov5640 4-004c: uploaded firmware didn't start, got to 0x7f
+[ 129.417385] ov5640 4-004c: ov5640_set_ctrl_focus: no autofocus firmware loadedUpdate 2:
after fooling around with some options and lurking @ internets i found that:
Code:
sudo media-ctl -d /dev/media1 --links "ov5640 3-004c":0->"sun6i-csi":0[0]running before megapixels camera fixes issue with violet-colour image in megapixels, and megapixels started doing pictures to /home/user/Pictures DIR, YAY!
but.. still..
i didnt figured out what options are needed to make image using pine's camera from terminal (eg using ffmpeg or camera.py)
any help appreciated
Update 3:
I checked device info
Code:
> media-ctl -d /dev/media1 -p
Media controller API version 5.11.0
Media device information
------------------------
driver sun6i-csi
model Allwinner Video Capture Device
serial
bus info platform:1cb0000.csi
hw revision 0x0
driver version 5.11.0
Device topology
- entity 1: sun6i-csi (1 pad, 2 links)
type Node subtype V4L flags 0
device node name /dev/video3
pad0: Sink
<- "ov5640 4-004c":0 [ENABLED]
<- "gc2145 4-003c":0 []
- entity 5: ov5640 4-004c (1 pad, 1 link)
type V4L2 subdev subtype Sensor flags 0
device node name /dev/v4l-subdev0
pad0: Source
[fmt:SBGGR8_1X8/1280x720@1/15 colorspace:srgb xfer:srgb ycbcr:601 quantization:full-range]
-> "sun6i-csi":0 [ENABLED]
- entity 7: gc2145 4-003c (1 pad, 1 link)
type V4L2 subdev subtype Sensor flags 0
device node name /dev/v4l-subdev1
pad0: Source
[fmt:UYVY8_2X8/1600x1200@1/10 field:none]
-> "sun6i-csi":0 []so i thought i found proper configurations that seems to be something like that:
Code:
media-ctl -d /dev/media1 --set-v4l2 '"ov5640 4-004c":0[fmt:UYVY8_2X8/1280x720]'according to previous info
but.. when switched to this mode, MEGAPIXEL again turns into violet-colour mode and hangs after trying to do a picture..
and then i tried to make a use of ffmpeg, which seems to work:
Code:
ffmpeg -s 1280x720 -f v4l2 -i /dev/video3 -vframes 1 selfie.jpg..but prodces only "whole-green" jpg
output:
Code:
ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 10.2.1 (Alpine 10.2.1_pre1) 20201203
configuration: --prefix=/usr --enable-avresample --enable-avfilter --enable-gnutls --enable-gpl --enable-libass --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libx264 --enable-libx265 --enable-libtheora --enable-libv4l2 --enable-libdav1d --enable-postproc --enable-pic --enable-pthreads --enable-shared --enable-libxcb --enable-libsrt --enable-libssh --enable-libvidstab --disable-stripping --disable-static --disable-librtmp --enable-vaapi --enable-vdpau --enable-libopus --enable-vulkan --enable-libsoxr --enable-libaom --disable-debug
libavutil 56. 51.100 / 56. 51.100
libavcodec 58. 91.100 / 58. 91.100
libavformat 58. 45.100 / 58. 45.100
libavdevice 58. 10.100 / 58. 10.100
libavfilter 7. 85.100 / 7. 85.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 7.100 / 5. 7.100
libswresample 3. 7.100 / 3. 7.100
libpostproc 55. 7.100 / 55. 7.100
Input #0, video4linux2,v4l2, from '/dev/video3':
Duration: N/A, start: 2228.856409, bitrate: 165888 kb/s
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1280x720, 165888 kb/s, 15 fps, 15 tbr, 1000k tbn, 1000k tbc
File 'selfie.jpg' already exists. Overwrite? [y/N] y
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0xffffb7670020] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to 'selfie.jpg':
Metadata:
encoder : Lavf58.45.100
Stream #0:0: Video: mjpeg, yuvj420p(pc), 1280x720, q=2-31, 200 kb/s, 15 fps, 15 tbn, 15 tbc
Metadata:
encoder : Lavc58.91.100 mjpeg
Side data:
cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
frame= 1 fps=0.0 q=1.8 Lsize=N/A time=00:00:00.06 bitrate=N/A speed=0.156x
video:5kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknownand on
Code:
ffmpeg -s 1280x720 -f v4l2 -i /dev/video1 -vframes 1 selfie.jpgdoesnt work
UPDATE: Last
in act of desperation i installed fswebcam and then fool around a little bit and, voilla:
Code:
sudo fswebcam --device=/dev/video3 -r 1280x720 -p UYVY -S 10 UYVY-XX.jpgfswebcam works
and for now fit my needs perfectly bottom line: never give up