Add Dynamic Closed Captions (CEA-608/708) to Live Stream

General Discussion
1

Hi All,

Kindly I find this code to insert closed caption please can we add dynamic closed caption of live stream 608 or 708 ?

GST_DEBUG=3 gst-launch-1.0 \
  filesrc location=video.mp4 ! parsebin name=p \
  p.src_0 ! queue ! h264parse ! \
  queue ! cccombiner name=c max-scheduled=60 ! \
  h264ccinserter remove-caption-meta=true caption-meta-order=display ! \
  h264parse ! queue ! mpegtsmux name=mux ! filesink location=output.ts \
  p.src_1 ! queue ! aacparse ! queue ! mux. \
  filesrc location=caption.mcc ! mccparse ! ccconverter ! \
  "closedcaption/x-cea-708,format=cc_data" ! queue max-size-buffers=50 ! c.caption