fswebcam - Small and simple webcam software for *nix.
Created by Philip Heron phil@sanslogic.co.uk http://www.sanslogic.co.uk/fswebcam/
This is the program used to generate images for a webcam. It captures a number of frames from any V4L or V4L2 compatible device, averages them to reduce noise and draws the details on it using the GD Graphics Library which also handles compressing the image to PNG or JPEG.
Run the following commands in the source folder to build and install fswebcam:
./configure --prefix=/usr --disable-v4l1 --enable-32bit-buffer make sudo make install
It's only requirements are that the GD library be installed with JPEG, PNG and FreeType support.
sudo apt-get install libgd-dev libjpeg-dev libpng-dev
sudo apt-get install libfreetype6-dev
fswebcam --Vflip 1 -r 1600x1200 -p YUV420P - > cam640x480_2.jpg
fswebcam --Hflip 1 -r 640x480 -p YUV420P - > cam640x480_1.jpg
fswebcam --exposure 4 -r 640x480 -p YUV420P - > cam640x480_3.jpg
** Don't forget to update your GC2035 driver to get better results
IMX-415 camera sensor:
fswebcam --displayfps 1 -S 90 -d /dev/video11 -r 3864x2192 -p UYVY - > 3864x2192.jpg
In order to use fswebcam in your Distro running a mainline kernel version you need to play with media-ctl and v4l2-ctl before you grab the files.
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Install v4l2 utils
sudo apt-get install v4l-utils -
Find your camera sensor
v4l2-ctl --list-devices cedrus (platform:cedrus): /dev/video1 sun6i-csi (platform:csi): /dev/video0 -
List the formats available
v4l2-ctl -d 0 --list-formats --list-ctrls User Controls contrast 0x00980901 (int) : min=0 max=255 step=1 default=0 value=0 flags=slider saturation 0x00980902 (int) : min=0 max=255 step=1 default=64 value=64 flags=slider hue 0x00980903 (int) : min=0 max=359 step=1 default=0 value=0 flags=slider white_balance_automatic 0x0098090c (bool) : default=1 value=1 flags=update red_balance 0x0098090e (int) : min=0 max=4095 step=1 default=0 value=0 flags=inactive, slider blue_balance 0x0098090f (int) : min=0 max=4095 step=1 default=0 value=0 flags=inactive, slider exposure 0x00980911 (int) : min=0 max=65535 step=1 default=0 value=590 flags=inactive, volatile gain_automatic 0x00980912 (bool) : default=1 value=1 flags=update gain 0x00980913 (int) : min=0 max=1023 step=1 default=0 value=23 flags=inactive, volatile horizontal_flip 0x00980914 (bool) : default=0 value=0 vertical_flip 0x00980915 (bool) : default=0 value=0 power_line_frequency 0x00980918 (menu) : min=0 max=3 default=1 value=1 Camera Controls auto_exposure 0x009a0901 (menu) : min=0 max=1 default=0 value=0 flags=update Image Processing Controls pixel_rate 0x009f0902 (int64) : min=0 max=2147483647 step=1 default=61430400 value=61430400 flags=read-only test_pattern 0x009f0903 (menu) : min=0 max=4 default=0 value=0 ioctl: VIDIOC_ENUM_FMT Index : 0 Type : Video Capture Pixel Format: 'BA81' Name : 8-bit Bayer BGBG/GRGR Index : 1 Type : Video Capture Pixel Format: 'GBRG' Name : 8-bit Bayer GBGB/RGRG Index : 2 Type : Video Capture Pixel Format: 'GRBG' Name : 8-bit Bayer GRGR/BGBG Index : 3 Type : Video Capture Pixel Format: 'RGGB' Name : 8-bit Bayer RGRG/GBGB Index : 4 Type : Video Capture Pixel Format: 'BG10' Name : 10-bit Bayer BGBG/GRGR Index : 5 Type : Video Capture Pixel Format: 'GB10' Name : 10-bit Bayer GBGB/RGRG Index : 6 Type : Video Capture Pixel Format: 'BA10' Name : 10-bit Bayer GRGR/BGBG Index : 7 Type : Video Capture Pixel Format: 'RG10' Name : 10-bit Bayer RGRG/GBGB Index : 8 Type : Video Capture Pixel Format: 'BG12' Name : 12-bit Bayer BGBG/GRGR Index : 9 Type : Video Capture Pixel Format: 'GB12' Name : 12-bit Bayer GBGB/RGRG Index : 10 Type : Video Capture Pixel Format: 'BA12' Name : 12-bit Bayer GRGR/BGBG Index : 11 Type : Video Capture Pixel Format: 'RG12' Name : 12-bit Bayer RGRG/GBGB Index : 12 Type : Video Capture Pixel Format: 'YUYV' Name : YUYV 4:2:2 Index : 13 Type : Video Capture Pixel Format: 'YVYU' Name : YVYU 4:2:2 Index : 14 Type : Video Capture Pixel Format: 'UYVY' Name : UYVY 4:2:2 Index : 15 Type : Video Capture Pixel Format: 'VYUY' Name : VYUY 4:2:2 Index : 16 Type : Video Capture Pixel Format: 'HM12' Name : YUV 4:2:0 (16x16 Macroblocks) Index : 17 Type : Video Capture Pixel Format: 'NV12' Name : Y/CbCr 4:2:0 Index : 18 Type : Video Capture Pixel Format: 'NV21' Name : Y/CrCb 4:2:0 Index : 19 Type : Video Capture Pixel Format: 'YU12' Name : Planar YUV 4:2:0 Index : 20 Type : Video Capture Pixel Format: 'YV12' Name : Planar YVU 4:2:0 Index : 21 Type : Video Capture Pixel Format: 'NV16' Name : Y/CbCr 4:2:2 Index : 22 Type : Video Capture Pixel Format: 'NV61' Name : Y/CrCb 4:2:2 Index : 23 Type : Video Capture Pixel Format: '422P' Name : Planar YUV 4:2:2 Index : 24 Type : Video Capture Pixel Format: 'RGBP' Name : 16-bit RGB 5-6-5 Index : 25 Type : Video Capture Pixel Format: 'RGBR' Name : 16-bit RGB 5-6-5 BE Index : 26 Type : Video Capture Pixel Format: 'JPEG' (compressed) Name : JFIF JPEG -
find the info and topology
media-ctl --device /dev/media1 -p Media controller API version 5.7.9 Media device information ------------------------ driver sun6i-csi model Allwinner Video Capture Device serial bus info hw revision 0x0 driver version 5.7.9 Device topology - entity 1: sun6i-csi (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video0 pad0: Sink <- "ov5640 2-003c":0 [ENABLED,IMMUTABLE] - entity 5: ov5640 2-003c (1 pad, 1 link) type V4L2 subdev subtype Sensor flags 0 device node name /dev/v4l-subdev0 pad0: Source [fmt:UYVY8_2X8/640x480@1/30 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:full-range] -> "sun6i-csi":0 [ENABLED,IMMUTABLE] -
Grab files from OV5640 using the fswebcam
media-ctl --device /dev/media1 --set-v4l2 '"ov5640 2-003c":0[fmt:YUYV8_2X8/1280x720]' ./fswebcam --displayfps 1 -S 30 -d /dev/video0 -r 1280x720 -p YUV420P - > /tmp/cam_640x480_yuv420p.jpg
