RTMP Input UDP Unicast output

General Discussion
1

Hi all.
i have a working line off ffmpeg, getting audio and video from a rtmp server (srs), and outputting to a decoder in udp unicast.

the result of the ffprobe of the rtmp stream is this:

Stream #0:0: Data: none
Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
Stream #0:2: Video: h264 (Constrained Baseline), yuv420p(progressive), 1280x720, 3500 kb/s, 50 fps, 50 tbr, 1k tbn

and my ffmpeg line is this:
ffmpeg -threads 1 -fflags +genpts -stream_loop -1 -re -i rtmp://XXX.XX.XX.XX:1935/live/canal -c:v copy -c:a mp2 -ab 128k -ar 48000 -threads 1 -metadata service_provider=“Linux EncoderTV” -metadata service_name=“Canal” -muxrate 7.5M -pcr_period 20 -pat_period 0.1 -sdt_period 0.25 -mpegts_flags +pat_pmt_at_frames -mpegts_flags system_b -flush_packets 0 -f mpegts ‘udp://192.168.30.193:1230?pkt_size=188&buffer_size=65535?fifo_size=1000&overrun_nonfatal=1’

Can do the same thing with gst? if so, can anyone help to make the pipeline?
Regards.

2

Something like this perhaps (untested, and missing some config bits from the ffmpeg command line, you can check the various elements in gst-inspect-1.0 to see available configuration options):

$ gst-launch-1.0 mpegtsmux name=mux alignment=7 ! udpsink host=192.168.30.193 port=1230 \
  \
  rtmp2src location=rtmp://.. ! flvdemux name=demux \
  \
  demux. ! queue ! h264parse ! queue ! mux.
  demux. ! queue ! aacparse ! decodebin3 ! audioconvert ! audioresample ! audio/x-raw,rate=48000 ! twolamemp2enc bitrate=128 ! mpegaudioparse ! queue ! mux.

There’s also avenc_mp2 which could be used in place of twolamemp2enc.