Windows: Recursively convert FLAC to MP3 w/ ffmpeg
The following .bat
file should do it:
for /R %%A in (*.flac) do ffmpeg -i "%%A" -c:v copy -b:a 320k "%%~dpnA.mp3"
You may test it first with this script:
for /R %%A in (*.flac) do echo ffmpeg -i "%%A" -c:v copy -b:a 320k "%%~dpnA.mp3"
Explanation for the above substitutions (they are combined in the script above):
%~dA
- expands %A to a drive letter only%~pA
- expands %A to a path only%~nA
- expands %A to a file name only
@echo off
cd /d "%~dp0" & setlocal
set "_flag1=-c:v copy -b:a 320k"
set "_flag2=-hide_banner -v error -stats"
set "_ffmpeg="C:\Program Files\FFmpeg\Bin\FFmpeg.exe" -i"
for /r %%i in (*.Flac)do %_ffmpeg% "%%~i" %_flag1% "%%~dpni.mp3" %_flag2%
%__AppDir__%timeout.exe /t 5 /nobreak |echo=Is Done! & endlocal & goto :eof
- The same without defining/using variables:
@echo off & setlocal & cd /d "%~dp0"
for /r %%i in (*.Flac)do "C:\Program Files\FFmpeg\Bin\FFmpeg.exe" -i ^
"%%~i" -c:v copy -b:a 320k "%%~dpni.mp3" -hide_banner -v error -stats
%__AppDir__%timeout.exe /t 5 /nobreak |echo=Is Done! & endlocal & goto :eof
Do you really need to use .Flac twice?
And you gonna always save all converted files in the same folder (work directory)?
for %%A in (.flac) do ffmpeg -i "%%~nA.flac" -c:v copy -b:a 320k "%%~nA.mp3"
for /R %% A in (
.flac)
fromffmpeg -i "%%~pI%%~nA.flac" -b:a 320k "%%~nA.mp3"
fails with the same error as noted before...
1. Remove n
and .flac
for %%A in (*.flac) do ffmpeg -i "%%~nA.flac" -c:v copy -b:a 320k "%%~nA.mp3"
- Obs.: 1 The
For
loop variable"%%~A"
provide to you the full path to the input file, you don't need to crop name and/or add explicitly:
"%~Drive\\Path\\Name.Flac"
"%%~dpn.Flac"
"%%~N.Flac"
rem :: use
ffmpeg -i "%%#~A" ...
2. Use For /R
:
For /R %%i in (*.flac)do ...
3. Consider define/adding a drive:\folder\
to save the target encoded file, not just a name, if not to save it in the same work directory your bat are in.
... (...)do.... ffmpeg ... "%%~dpni.mp3"
- Obs.: 2 To save your
.mp3
in the current/work directory, youc can use:
... (...)do.... ffmpeg ... "%%~ni.mp3"
... (...)do.... ffmpeg ... ".\%%~ni.mp3"
... (...)do.... ffmpeg ... "%CD%\%%~ni.mp3"
- Obs.:: 3 All metadata survives!!
One suggest using For /F + where /R
@echo off
setlocal & cd /d "%~dp0"
for /f delims^= %%i in ('
2^>nul %__AppDir__%where.exe /r . *.flac
')do "C:\Program Files\FFmpeg\Bin\FFmpeg.exe" -i "%%~i" -c:v ^
copy -b:a 320k "%%~dpni.mp3" -hide_banner -v error -stats
%__AppDir__%timeout.exe 5 /nobreak |echo=Is Done! & endlocal & goto :eof
- Obs.:: 4 For break line using
^
, do not use any spaces/character after the caret:
Additional resources:
Set /?
For /?
For /F
For /R
Where /?
Timeout /?
- Redirection
|
,<
,>
,2>
, etc.
- Conditional Execution
||
and&&
Local Environment | Function
| Also Refer:Goto :EOF
Setlocal
&Endlocal
- Split long commands in multiple lines through Windows batch file
- How does the Windows Command Interpreter [
cmd.exe
] Parse Scripts