@echo off
REM ============================================================
REM  Generic SDI worker
REM  Usage: worker.cmd <channel_number> <rtsp_url> <card_name>
REM  Example: worker.cmd 1 rtsp://10.10.5.140:8554/live1 "DeckLink Duo"
REM ============================================================
setlocal

set "CHANNEL=%~1"
set "URL=%~2"
set "CARD=%~3"

if "%CARD%"=="" set "CARD=DeckLink Quad"

set "FFMPEG=C:\sdi-bridge\ffmpeg.exe"
set "STOPFLAG=C:\sdi-bridge\STOP.flag"
set "DECKLINK=%CARD% (%CHANNEL%)"

title SDI-%CHANNEL% ^| %URL%

:loop
if exist "%STOPFLAG%" (
    echo [%date% %time%] Stop flag detected. Exiting worker.
    exit /b 0
)

echo [%date% %time%] Starting : %DECKLINK%
echo [%date% %time%] Stream   : %URL%
"%FFMPEG%" ^
  -rtsp_transport tcp -timeout 5 -fflags nobuffer ^
  -i "%URL%" ^
  -map 0:v:0 -an -duplex_mode half ^
  -vf "scale=1920:1080:flags=fast_bilinear,format=uyvy422,setfield=tff" ^
  -f decklink -pix_fmt uyvy422 -format_code Hi50 ^
  "%DECKLINK%"

if exist "%STOPFLAG%" (
    echo [%date% %time%] Stop flag detected. Exiting worker.
    exit /b 0
)

echo [%date% %time%] Stream stopped. Restarting in 3 sec...
timeout /t 3 /nobreak >nul
goto loop