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Camera Capture, Encoding, and Preview

7. 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.