sound card (webcam)

$ gst-launch-1.0 -v -e v4l2src device=/dev/video0 ! capsfilter name=mycapsfilter caps=video/x-raw,width=1280,height=720 ! x264enc tune=zerolatency ! mp4mux ! filesink location=/tmp/file.mp4



$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 1: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 2: ALC892 Alt Analog [ALC892 Alt Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: F1005 [FaceCam 1005], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

$ cat /proc/asound/cards
 0 [HDMI           ]: HDA-Intel - HDA Intel HDMI
                      HDA Intel HDMI at 0xf7d14000 irq 31
 1 [PCH            ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xf7d10000 irq 32
 2 [F1005          ]: USB-Audio - FaceCam 1005
                      KYE Systems Corp. FaceCam 1005 at usb-0000:00:14.0-3, high speed

$ cat /proc/asound/card2/stream0
KYE Systems Corp. FaceCam 1005 at usb-0000:00:14.0-3, high speed : USB Audio

Capture:
  Status: Stop
  Interface 3
    Altset 1
    Format: S16_LE
    Channels: 1
    Endpoint: 3 IN (SYNC)
    Rates: 48000, 44100, 24000, 22050, 16000, 12000, 11025, 8000
    Data packet interval: 1000 us
$