Ffmpeg If/then scripts?

[Bmcaps]

Hello everyone,

Is it possible to combine multiple scripts into one in ffmpeg?

What I am trying to do is create one master script that changes commands based on the aspect ratio of the input video.

For example, if the input video is closest to a 16:9 aspect ratio, ffmpeg will automatically convert the video using script "A".

If the input video is closest to a 4:3 aspect ratio, ffmpeg will automatically convert the video using script "B".

Finally, if the input video has a strange aspect ratio, (for example, cell phone videos) ffmpeg will automatically convert the video using script "C".

I am new to ffmpeg and do not understand much. If possible, will you please give a script that I can simply copy and paste into ffmpeg?

I already have scripts A, B, and C ready.

Also, as a side question, can you command ffmpeg to delete the original input video after successfully converting it?

Thanks everyone

[pandy]

You can probably do some script although if/then will be purely based on operating system environment - ffmpeg offer some limited command support but they are rather low level type.
First you need to analyze your source then store result of analysis (trough system variable or externally in file) - later you can use result to perform if/then and do proper processing by calling ffmpeg with desired options.

[pcspeak]

To get you started. Put your scripts, A, B, C, below the relevant labels and test.
You need https://mediaarea.net/download/binary/mediainfo/23.11.1/MediaInfo_CLI_23.11.1_Windows_x64.zip
Nothing gets deleted.... yet!

test01.cmd

@echo off
for %%a in ("*.mp4", "*.avi", "*.mkv", "*.mpg", "*.ts") do call :get-dar "%%a"
goto :end

:get-dar
set video=%~1
echo Getting the Display Aspect Ratio of %video%
"C:\MediaInfoCLI\mediainfo.exe" "--Inform=Video;%%DisplayAspectRatio/String%%" "%video%" > ~tmpfile.txt
set /p dar= < ~tmpfile.txt
del ~tmpfile.txt
if %dar% equ 16:9   call :A "%video%" 
if %dar% equ 4:3    call :B "%video%" 
if %dar% equ 2.35:1 call :C "%video%" 
if %dar% equ 2.40:1 call :D "%video%" 
goto :eof

:A
echo ffmpeg -i "%video%" %dar%
goto :eof

:B
echo ffmpeg -i "%video%" %dar%
goto :eof

:C
echo ffmpeg -i "%video%" %dar%
goto :eof

:D
echo ffmpeg -i "%video%" %dar%
goto :eof

:end
 pause

Cheers.


EDIT: 2/01/24 - Minor changes to the batch file to add a colon and delete a 'greater than' symbol.

[Bmcaps]

To get you started. Put your scripts, A, B, C, below the relevant labels and test.
You need https://mediaarea.net/download/binary/mediainfo/23.11.1/MediaInfo_CLI_23.11.1_Windows_x64.zip
Nothing gets deleted.... yet!

test01.cmd

@echo off
for %%a in ("*.mp4", "*.avi", "*.mkv", "*.mpg", "*.ts") do call :get-dar "%%a"
goto :end

:get-dar
set video=%~1
echo Getting the Display Aspect Ratio of %video%
"C:\MediaInfoCLI\mediainfo.exe" "--Inform=Video;%%DisplayAspectRatio/String%%" "%video%" > ~tmpfile.txt
set /p dar= < ~tmpfile.txt
del ~tmpfile.txt
if %dar% equ 16:9   call :A "%video%" 
if %dar% equ 4:3    call :B "%video%" 
if %dar% equ 2.35:1 call :C "%video%" 
if %dar% equ 2.40:1 call :D "%video%" 
goto :eof

:A
echo ffmpeg -i "%video%" %dar%
goto :eof

:B
echo ffmpeg -i "%video%" %dar%
goto :eof

:C
echo ffmpeg -i "%video%" %dar%
goto :eof

:D
echo ffmpeg -i "%video%" %dar%
goto :eof

:end
 pause

Cheers.


EDIT: 2/01/24 - Minor changes to the batch file to add a colon and delete a 'greater than' symbol.

Pcspeak, I am so sorry.

I forgot to mention that I only have access to an android device at the moment.

Thank you so much for the help. Your script looks awesome.

Sorry again