SMPTE HD Bars + Overlay Text as TS Loop suitable for Mux

bars_w_text.bat

@echo off

:: Set duration in seconds
set duration=20
:: Temporary loop TS file to create
set loopfile=svc%1.ts
set "overlaytext=ABC-%2 / LTN"

:: Create the loop file
ffmpeg.exe ^
	-f lavfi -i "smptehdbars=duration=%duration%:size=1280x720:rate=60000/1001" ^
	-f lavfi -i "sine=frequency=220:beep_factor=5:sample_rate=48000:duration=%duration%" ^
	-vf "drawtext=text='%overlaytext%':x=W/2-tw/2:y=H/2-th/2:fontfile=consolab.ttf:fontsize=72:fontcolor=white:shadowcolor=black:shadowx=5:shadowy=5" ^
	-c:v libx265 -x265-params bframes=0 -b:v 100k -preset slow ^
	-force_key_frames "expr:gte(t,n_forced*3)" ^
	-c:a mp2 -b:a 32k ^
	-y ^
	-f mpegts ^
		-metadata service_provider="ABC" ^
		-metadata service_name="ABC-%2" ^
		-mpegts_flags system_b ^
		-mpegts_pmt_start_pid %101 ^
		-mpegts_start_pid %110 ^
		-mpegts_service_id %1 ^
		-mpegts_service_type hevc_digital_hdtv ^
		-muxrate 250000 ^
	%loopfile%

:: Show what we got
ffprobe %loopfile%