Based on debian:buster image. Builds a copy of gst-omx and integrates it into the system GStreamer.
Example usage:
docker run -it --rm --device=/dev/vchiq mmastrac/gst-omx-rpi:latest \
gst-launch-1.0 rtspsrc location="rtsp://address-of-source" latency=0 !\
rtph264depay ! h264parse ! omxh264dec !\
omxh264enc target-bitrate=500000 control-rate=1 ! video/x-h264, profile=baseline !\
h264parse ! rtph264pay name=pay0 config-interval=1 pt=96 ! udpsink host=ip-of-sink port=8004 sync=false
Embed some overlays on the decoded H264 stream:
docker run -it --rm --device=/dev/vchiq mmastrac/gst-omx-rpi:latest \
gst-launch-1.0 rtspsrc location="rtsp://address-of-source" latency=0 !\
rtph264depay ! h264parse ! omxh264dec ! videorate !\
textoverlay text="Front" valignment=top halignment=left font-desc="Sans, 16" !\
clockoverlay halignment=right valignment=bottom font-desc="Sans, 12" !\
omxh264enc target-bitrate=500000 control-rate=1 ! video/x-h264, profile=baseline !\
rtph264pay name=pay0 config-interval=1 pt=96 ! udpsink host=ip-of-sink port=8004
You might need to add the following to your Pi's boot configuration:
gpu_mem = 128
The pre-built docker image can be found here: https://hub.docker.com/r/mmastrac/gst-omx-rpi/