Webcam
v4l2-ctl Usages
Checking HW
- HOW to check Audio/Video HW
gst-device-monitor-1.0 for check Audio/Video Device Names
MACROSILICON HDMI-USB Converter Case
References
- Making the Macrosilicon MS2109 HDMI-to-USB capture device work on Linux
$ pactl list short sources
0 alsa_output.pci-0000_01_00.1.hdmi-stereo-extra2.monitor module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
2 alsa_output.pci-0000_00_1f.3.iec958-stereo.monitor module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
3 alsa_input.pci-0000_00_1f.3.analog-stereo module-alsa-card.c s16le 2ch 44100Hz RUNNING
21 alsa_input.usb-MACROSILICON_USB_Video-02.analog-stereo module-alsa-card.c s16le 2ch 48000Hz IDLE
$ sudo v4l2-ctl --all
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : USB Video: USB Video
Bus info : usb-0000:06:00.0-2.4
Driver version: 4.15.18
Capabilities : 0x84200001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
Width/Height : 1920/1080
Pixel Format : 'MJPG'
Field : None
Bytes per Line : 0
Size Image : 4147200
Colorspace : sRGB
Transfer Function : Default (maps to sRGB)
YCbCr/HSV Encoding: Default (maps to ITU-R 601)
Quantization : Default (maps to Full Range)
Flags :
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 1920, Height 1080
Default : Left 0, Top 0, Width 1920, Height 1080
Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 1920, Height 1080
Selection: crop_bounds, Left 0, Top 0, Width 1920, Height 1080
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 0
brightness 0x00980900 (int) : min=-128 max=127 step=1 default=-11 value=-11
contrast 0x00980901 (int) : min=0 max=255 step=1 default=148 value=148
saturation 0x00980902 (int) : min=0 max=255 step=1 default=180 value=180
hue 0x00980903 (int) : min=-128 max=127 step=1 default=0 value=0
MS Webcam Case
$ pactl list short sources
0 alsa_output.pci-0000_01_00.1.hdmi-stereo-extra2.monitor module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
2 alsa_output.pci-0000_00_1f.3.iec958-stereo.monitor module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
3 alsa_input.pci-0000_00_1f.3.analog-stereo module-alsa-card.c s16le 2ch 44100Hz RUNNING
20 alsa_input.usb-Microsoft_Microsoft___LifeCam_Studio_TM_-02.analog-mono module-alsa-card.c s16le 1ch 48000Hz SUSPENDED
$ sudo v4l2-ctl --all
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : Microsoft® LifeCam Studio(TM):
Bus info : usb-0000:06:00.0-2.4
Driver version: 4.15.18
Capabilities : 0x84200001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
Width/Height : 640/480
Pixel Format : 'YUYV'
Field : None
Bytes per Line : 1280
Size Image : 865316496
Colorspace : sRGB
Transfer Function : Default (maps to sRGB)
YCbCr/HSV Encoding: Default (maps to ITU-R 601)
Quantization : Default (maps to Limited Range)
Flags :
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 640, Height 480
Default : Left 0, Top 0, Width 640, Height 480
Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 640, Height 480
Selection: crop_bounds, Left 0, Top 0, Width 640, Height 480
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 5.000 (5/1)
Read buffers : 0
brightness 0x00980900 (int) : min=30 max=255 step=1 default=133 value=133
contrast 0x00980901 (int) : min=0 max=10 step=1 default=5 value=5
saturation 0x00980902 (int) : min=0 max=200 step=1 default=103 value=103
white_balance_temperature_auto 0x0098090c (bool) : default=1 value=1
power_line_frequency 0x00980918 (menu) : min=0 max=2 default=2 value=2
white_balance_temperature 0x0098091a (int) : min=2500 max=10000 step=1 default=4500 value=4500 flags=inactive
sharpness 0x0098091b (int) : min=0 max=50 step=1 default=25 value=25
backlight_compensation 0x0098091c (int) : min=0 max=10 step=1 default=0 value=0
exposure_auto 0x009a0901 (menu) : min=0 max=3 default=3 value=3
exposure_absolute 0x009a0902 (int) : min=1 max=10000 step=1 default=156 value=156 flags=inactive
pan_absolute 0x009a0908 (int) : min=-529200 max=529200 step=3600 default=0 value=0
tilt_absolute 0x009a0909 (int) : min=-432000 max=432000 step=3600 default=0 value=0
focus_absolute 0x009a090a (int) : min=0 max=40 step=1 default=0 value=0 flags=inactive
focus_auto 0x009a090c (bool) : default=1 value=1
zoom_absolute 0x009a090d (int) : min=0 max=317 step=1 default=0 value=0
$ gst-device-monitor-1.0
Probing devices...
Device found:
name : LifeCam Studio Analog Mono
class : Audio/Source
caps : audio/x-raw, format=(string){ S16LE, S16BE, F32LE, F32BE, S32LE, S32BE, S24LE, S24BE, S24_32LE, S24_32BE, U8 }, layout=(string)interleaved, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
audio/x-alaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
audio/x-mulaw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 32 ];
properties:
alsa.resolution_bits = 16
device.api = alsa
device.class = sound
alsa.class = generic
alsa.subclass = generic-mix
alsa.name = "USB\ Audio"
alsa.id = "USB\ Audio"
alsa.subdevice = 0
alsa.subdevice_name = "subdevice\ \#0"
alsa.device = 0
alsa.card = 3
alsa.card_name = "Microsoft\302\256\ LifeCam\ Studio\(TM\)"
alsa.long_card_name = "Microsoft\ Microsoft\302\256\ LifeCam\ Studio\(TM\)\ at\ usb-0000:06:00.0-2.4\,\ high\ speed"
alsa.driver_name = snd_usb_audio
device.bus_path = pci-0000:06:00.0-usb-0:2.4:1.2
sysfs.path = /devices/pci0000:00/0000:00:1c.4/0000:06:00.0/usb5/5-2/5-2.4/5-2.4:1.2/sound/card3
udev.id = "usb-Microsoft_Microsoft\302\256_LifeCam_Studio_TM_-02"
device.bus = usb
device.vendor.id = 045e
device.vendor.name = "Microsoft\ Corp."
device.product.id = 0772
device.product.name = "LifeCam\ Studio"
device.serial = "Microsoft_Microsoft\302\256_LifeCam_Studio_TM_"
device.form_factor = webcam
device.string = hw:3
device.buffering.buffer_size = 192000
device.buffering.fragment_size = 96000
device.access_mode = mmap+timer
device.profile.name = analog-mono
device.profile.description = "Analog\ Mono"
device.description = "LifeCam\ Studio\ Analog\ Mono"
alsa.mixer_name = "USB\ Mixer"
alsa.components = USB045e:0772
module-udev-detect.discovered = 1
device.icon_name = camera-web-usb
gst-launch-1.0 pulsesrc device=alsa_input.usb-Microsoft_Microsoft___LifeCam_Studio_TM_-02.analog-mono ! ...
...
Device found:
name : Microsoft® LifeCam Studio(TM):
class : Video/Source
caps : video/x-raw, format=(string)YUY2, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)5/1;
video/x-raw, format=(string)YUY2, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 10/1, 15/2 };
video/x-raw, format=(string)YUY2, width=(int)960, height=(int)544, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 20/1, 15/1, 10/1, 15/2 };
video/x-raw, format=(string)YUY2, width=(int)800, height=(int)600, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 20/1, 15/1, 10/1, 15/2 };
video/x-raw, format=(string)YUY2, width=(int)800, height=(int)448, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
video/x-raw, format=(string)YUY2, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
video/x-raw, format=(string)YUY2, width=(int)640, height=(int)360, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
video/x-raw, format=(string)YUY2, width=(int)424, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
video/x-raw, format=(string)YUY2, width=(int)352, height=(int)288, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
video/x-raw, format=(string)YUY2, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
video/x-raw, format=(string)YUY2, width=(int)176, height=(int)144, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
video/x-raw, format=(string)YUY2, width=(int)160, height=(int)120, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)960, height=(int)544, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)800, height=(int)600, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)800, height=(int)448, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)640, height=(int)360, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)432, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)352, height=(int)288, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)176, height=(int)144, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
image/jpeg, width=(int)160, height=(int)120, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 20/1, 15/1, 10/1, 15/2 };
properties:
udev-probed = true
device.bus_path = pci-0000:06:00.0-usb-0:2.4:1.0
sysfs.path = /sys/devices/pci0000:00/0000:00:1c.4/0000:06:00.0/usb5/5-2/5-2.4/5-2.4:1.0/video4linux/video0
device.bus = usb
device.subsystem = video4linux
device.vendor.id = 045e
device.vendor.name = Microsoft
device.product.id = 0772
device.product.name = "Microsoft\302\256\ LifeCam\ Studio\(TM\):"
device.serial = "Microsoft_Microsoft\302\256_LifeCam_Studio_TM_"
device.capabilities = :capture:
device.api = v4l2
device.path = /dev/video0
v4l2.device.driver = uvcvideo
v4l2.device.card = "Microsoft\302\256\ LifeCam\ Studio\(TM\):"
v4l2.device.bus_info = usb-0000:06:00.0-2.4
v4l2.device.version = 266002 (0x00040f12)
v4l2.device.capabilities = 2216689665 (0x84200001)
v4l2.device.device_caps = 69206017 (0x04200001)
gst-launch-1.0 v4l2src ! ...
...
$ gst-launch-1.0 pulsesrc device=alsa_input.usb-Microsoft_Microsoft___LifeCam_Studio_TM_-02.analog-mono ! autoaudiosink v4l2src device=/dev/video0 ! jpegdec ! xvimagesink
Logitech HD Pro Webcam C920
$ gst-device-monitor-1.0
Probing devices...
Device found:
name : HD Pro Webcam C920 Digital Stereo (IEC958)
class : Audio/Source
caps : audio/x-raw, format=(string){ S16LE, S16BE, F32LE, F32BE, S32LE, S32BE, S24LE, S24BE, S24_32LE, S24_32BE, U8 }, layout=(string)interleaved, rate=(int)[ 1, 384000 ], channels=(int)[ 1, 32 ];
audio/x-alaw, rate=(int)[ 1, 384000 ], channels=(int)[ 1, 32 ];
audio/x-mulaw, rate=(int)[ 1, 384000 ], channels=(int)[ 1, 32 ];
properties:
alsa.resolution_bits = 16
device.api = alsa
device.class = sound
alsa.class = generic
alsa.subclass = generic-mix
alsa.name = "USB\ Audio"
alsa.id = "USB\ Audio"
alsa.subdevice = 0
alsa.subdevice_name = "subdevice\ \#0"
alsa.device = 0
alsa.card = 4
alsa.card_name = "HD\ Pro\ Webcam\ C920"
alsa.long_card_name = "HD\ Pro\ Webcam\ C920\ at\ usb-0000:00:14.0-10.4\,\ high\ speed"
alsa.driver_name = snd_usb_audio
device.bus_path = pci-0000:00:14.0-usb-0:10.4:1.2
sysfs.path = /devices/pci0000:00/0000:00:14.0/usb1/1-10/1-10.4/1-10.4:1.2/sound/card4
udev.id = usb-046d_HD_Pro_Webcam_C920_B963F0DF-02
device.bus = usb
device.vendor.id = 046d
device.vendor.name = "Logitech\,\ Inc."
device.product.id = 082d
device.product.name = "HD\ Pro\ Webcam\ C920"
device.serial = 046d_HD_Pro_Webcam_C920_B963F0DF
device.form_factor = webcam
device.string = iec958:4
device.buffering.buffer_size = 256000
device.buffering.fragment_size = 128000
device.access_mode = mmap+timer
device.profile.name = iec958-stereo
device.profile.description = "Digital\ Stereo\ \(IEC958\)"
device.description = "HD\ Pro\ Webcam\ C920\ Digital\ Stereo\ \(IEC958\)"
module-udev-detect.discovered = 1
device.icon_name = camera-web-usb
is-default = true
gst-launch-1.0 pulsesrc device=alsa_input.usb-046d_HD_Pro_Webcam_C920_B963F0DF-02.iec958-stereo ! ...
Device found:
name : HD Pro Webcam C920
class : Video/Source
caps : video/x-raw, format=(string)YUY2, width=(int)2304, height=(int)1536, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)2/1;
video/x-raw, format=(string)YUY2, width=(int)2304, height=(int)1296, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)2/1;
video/x-raw, format=(string)YUY2, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)5/1;
video/x-raw, format=(string)YUY2, width=(int)1600, height=(int)896, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)960, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)1024, height=(int)576, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)800, height=(int)600, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)864, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)800, height=(int)448, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)640, height=(int)360, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)432, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)352, height=(int)288, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)320, height=(int)180, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)176, height=(int)144, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)160, height=(int)120, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-raw, format=(string)YUY2, width=(int)160, height=(int)90, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)1600, height=(int)896, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)960, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)1024, height=(int)576, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)800, height=(int)600, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)864, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)800, height=(int)448, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)640, height=(int)360, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)432, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)352, height=(int)288, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)320, height=(int)180, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)176, height=(int)144, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)160, height=(int)120, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
image/jpeg, width=(int)160, height=(int)90, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1600, height=(int)896, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)960, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1024, height=(int)576, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)800, height=(int)600, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)864, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)800, height=(int)448, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)640, height=(int)360, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)432, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)352, height=(int)288, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)320, height=(int)180, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)176, height=(int)144, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)160, height=(int)120, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)160, height=(int)90, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
properties:
udev-probed = true
device.bus_path = pci-0000:00:14.0-usb-0:10.4:1.0
sysfs.path = /sys/devices/pci0000:00/0000:00:14.0/usb1/1-10/1-10.4/1-10.4:1.0/video4linux/video2
device.bus = usb
device.subsystem = video4linux
device.vendor.id = 046d
device.vendor.name = 046d
device.product.id = 082d
device.product.name = "HD\ Pro\ Webcam\ C920"
device.serial = 046d_HD_Pro_Webcam_C920_B963F0DF
device.capabilities = :capture:
device.api = v4l2
device.path = /dev/video2
v4l2.device.driver = uvcvideo
v4l2.device.card = "HD\ Pro\ Webcam\ C920"
v4l2.device.bus_info = usb-0000:00:14.0-10.4
v4l2.device.version = 328885 (0x000504b5)
v4l2.device.capabilities = 2225078273 (0x84a00001)
v4l2.device.device_caps = 69206017 (0x04200001)
gst-launch-1.0 v4l2src device=/dev/video2 ! ...
$ $ gst-launch-1.0 -v pulsesrc device=alsa_input.usb-046d_HD_Pro_Webcam_C920_B963F0DF-02.iec958-stereo ! autoaudiosink \
v4l2src device=/dev/video2 ! jpegdec ! xvimagesink