Small batch script for converting RIFF WAV files to RF64 using ffmpeg

ffmpeg_riff-to-rf64.bat

@echo off

::-----------------------------------------------------------------------------
:: Small batch script for converting RIFF WAV files to RF64 using ffmpeg
:: Location of ffmpeg binary should be sets globally or via PATH= env ^
::-----------------------------------------------------------------------------


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:Loading
if "%1"=="" goto help
if "%2"=="" goto help

if "%1"=="/?" goto help
if "%1"=="-h" goto help
goto Start

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:help
echo.
echo Small batch script for converting RIFF WAV files to RF64 using ffmpeg
echo.
echo Help.
echo Usage: %~n0 -rf64 "inputfile" "outputfile"
echo Usage: %~n0 -concat "outputfile"
echo Usage: %~n0 -concat --random
echo.
echo -rf64:    Save WAV file with RF64 Header. Output filename can be omitted and name will given based on input file with '-rf64' prefix: "-rf64.wav"
echo -concat:  Concatenate multiple WAV files into a single WAV file. Script should be executed in same folder where multiple WAV files located. Usage with '--random' generates random name of output file.
echo -help:    Show this help info.
echo.
goto end

:Start
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if "%1"=="-rf64" goto rf64
if "%1"=="-concat" goto concat
goto help

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:rf64
set infile="%2"

if "%3"=="" (
set outfile="%~n2-rf64.wav"
echo "%~n0: Output file not specified. Using basename of input file: %~n2-rf64.wav"
) else (
set outfile="%3"
)

if exist "%infile%" (
ffmpeg -i "%infile%" -c copy -rf64 auto "%outfile%"
) else (
echo %~n0: Input File: %infile% for not found!
)
goto end

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:concat
set tmplist="%RANDOM%.lst"

if "%2"=="--random" (
set outfile="%RANDOM%-rand-rf64.wav"
echo "%~n0: Output file not specified. Using random name of output file: %outfile%"
) else (
set outfile="%2"
)

(for %%i in (*.wav) do (
@echo file '%%i')
) > "%tmplist%"

if exist "%tmplist%" (
ffmpeg -f concat -safe 0 -i %tmplist% -c copy -rf64 auto "%outfile%"
del /f /q %tmplist% && echo %~n0: Deleting generated list file: %tmplist%
) else (
echo "%~n0: List file for concat not found!"
)

:end