Camera Capture, Encoding, and Preview

Rockchip Platform Support

7.6 Camera Capture, Encoding, and Preview

Rockchip platforms still use the standard v4l2src element for camera capture. The following pipeline splits one NV12 stream into hardware encoding and display branches:

gst-launch-1.0 v4l2src device=/dev/video0 \
  ! 'video/x-raw,format=NV12' \
  ! tee name=t \
  t. ! queue ! mpph264enc ! h264parse ! filesink location=/data/out.h264 \
  t. ! queue ! waylandsink

HDMI-IN is used in the same way as a camera. First find the node named hdmirx:

grep '' /sys/class/video4linux/*/name

Then point v4l2src device= to the corresponding /dev/videoX device.