#!/bin/bash

set -euo pipefail
IFS=$'\n\t'

gst-launch-1.0 -vm \
    udpsrc port=15001 name=s1 ! application/x-rtp,media=video,encoding-name=H264,clock-rate=90000 ! rtpjitterbuffer ! rtph264depay ! avdec_h264 ! \
        video/x-raw,width=640,height=840,format=I420,framerate=25/1 ! \
        textoverlay text='s1' valignment=bottom halignment=center font-desc="Sans, 50" ! mix.sink_0 \
    \
    udpsrc port=15002 name=s2 ! application/x-rtp,media=video,encoding-name=H264,clock-rate=90000 ! rtpjitterbuffer ! rtph264depay ! avdec_h264 ! \
        video/x-raw,width=640,height=840,format=I420,framerate=25/1 ! \
        textoverlay text='s2' valignment=bottom halignment=center font-desc="Sans, 50" ! mix.sink_1 \
    \
    udpsrc port=15003 name=s3 ! application/x-rtp,media=video,encoding-name=H264,clock-rate=90000 ! rtpjitterbuffer ! rtph264depay ! avdec_h264 ! \
        video/x-raw,width=640,height=840,format=I420,framerate=25/1 ! \
        textoverlay text='s3' valignment=bottom halignment=center font-desc="Sans, 50" ! mix.sink_2 \
    \
    udpsrc port=15004 name=s4 ! application/x-rtp,media=video,encoding-name=H264,clock-rate=90000 ! rtpjitterbuffer ! rtph264depay ! avdec_h264 ! \
        video/x-raw,width=640,height=840,format=I420,framerate=25/1 ! \
        textoverlay text='s4' valignment=bottom halignment=center font-desc="Sans, 50" ! mix.sink_3 \
    \
    udpsrc port=15005 name=s5 ! application/x-rtp,media=video,encoding-name=H264,clock-rate=90000 ! rtpjitterbuffer ! rtph264depay ! avdec_h264 ! \
        video/x-raw,width=640,height=840,format=I420,framerate=25/1 ! \
        textoverlay text='s5' valignment=bottom halignment=center font-desc="Sans, 50" ! mix.sink_4 \
    \
    udpsrc port=15006 name=s6 ! application/x-rtp,media=video,encoding-name=H264,clock-rate=90000 ! rtpjitterbuffer ! rtph264depay ! avdec_h264 ! \
        video/x-raw,width=640,height=840,format=I420,framerate=25/1 ! \
        textoverlay text='s6' valignment=bottom halignment=center font-desc="Sans, 50" ! mix.sink_5 \
    \
    udpsrc port=15023 name=s23 ! application/x-rtp,media=video,encoding-name=H264,clock-rate=90000 ! rtpjitterbuffer ! rtph264depay ! avdec_h264 ! \
        video/x-raw,width=640,height=840,format=I420,framerate=25/1 ! \
        textoverlay text='s23' valignment=bottom halignment=center font-desc="Sans, 50" ! mix.sink_6 \
    \
    udpsrc port=15089 name=s89 ! application/x-rtp,media=video,encoding-name=H264,clock-rate=90000 ! rtpjitterbuffer ! rtph264depay ! avdec_h264 ! \
        video/x-raw,width=640,height=840,format=I420,framerate=25/1 ! \
        textoverlay text='s89' valignment=bottom halignment=center font-desc="Sans, 50" ! mix.sink_7 \
    \
    compositor name=mix \
            sink_0::xpos=136  sink_0::ypos=0   sink_0::width=412 sink_0::height=540 \
            sink_1::xpos=136  sink_1::ypos=540 sink_1::width=412 sink_1::height=540 \
            sink_2::xpos=548  sink_2::ypos=0   sink_2::width=412 sink_2::height=540 \
            sink_3::xpos=548  sink_3::ypos=540 sink_3::width=412 sink_3::height=540 \
            sink_4::xpos=960  sink_4::ypos=0   sink_4::width=412 sink_4::height=540 \
            sink_5::xpos=960  sink_5::ypos=540 sink_5::width=412 sink_5::height=540 \
            sink_6::xpos=1372 sink_6::ypos=0   sink_6::width=412 sink_6::height=540 \
            sink_7::xpos=1372 sink_7::ypos=540 sink_7::width=412 sink_7::height=540 \
        clockoverlay halignment=right valignment=bottom shaded-background=true font-desc="Sans, 10" ! \
        video/x-raw,width=1920,height=1080,format=I420,framerate=25/1 ! autovideosink