ffmpeg help not working

[loa909]

I have this script for enhancing the audio on movies or clips. so when I dropped a .mp4 clip on the script all i get is this below in the cmd window. anyone know why

 Audio processing, video is copied losslesly
C:\ffmpeg-3.4-win64-static\bin\ShapeMaker: No such file or directory
Press any key to continue . . .

this is the script I use

@setlocal

@echo Audio processing, video is copied losslesly

@rem folder where ffmpeg.exe is located
@set FF=C:\ffmpeg-3.4-win64-static\bin
@set PATH=%FF%;%PATH%

@set filename=%1

@rem audio bitrate
@set ab=192

@set aproc="pan=stereo|FL < FL+1.414FC+0.5BL+0.5SL+0.25LFE|FR < FR+1.414FC+0.5BR+0.5SR+0.25LFE,dynaudnorm=p=1/sqrt(2):m=100=20"

@ffmpeg.exe -hide_banner -v 32 -stats -y -i "%filename%" -c:v copy -af %aproc% -c:a aac -b:a %ab%k -f matroska "%~n1_dynaudio.mkv"

@endlocal
@pause

[Budman1]

Be careful in batch files with percent signs. Sometimes need 2 (%%) and sometimes not depending if its batch usage or program usage as part of ffmpeg line. %%A usage is also different than %1.

Also removing the @ signs and allowing lines to show complete output may help with errors.

[pandy]

Check if your C:\ffmpeg-3.4-win64-static\bin exist and if there is ffmpeg.exe in this folder.

[JVRaines]

Change this line in your script

@set filename=%1

to

@set filename=%~1

and see if that helps.

[loa909]

Be careful in batch files with percent signs. Sometimes need 2 (%%) and sometimes not depending if its batch usage or program usage as part of ffmpeg line. %%A usage is also different than %1.

Also removing the @ signs and allowing lines to show complete output may help with errors.

I am a bit confused with this above I did remove all @ signs. but got a load of junk stuff

pandy
Re: ffmpeg help not working

Check if your C:\ffmpeg-3.4-win64-static\bin exist and if there is ffmpeg.exe in this folder.

yes ffmpeg.exe is in that bin folder

JVRaines
Re: ffmpeg help not working

Change this line in your script
Code:
@set filename=%1
to
Code:
@set filename=%~1
and see if that helps.

I cant see how to make that symbol @set filename=%~1 after the % sign I think its called tidle not sure now


EDIT: Silly me its LSHIFT and the # key like this ~ I just added that ~ symbol like you said between the % and the 1 so its like this @set filename=%~1

now it works seem weird to me as it worked before that ~ was there, but its working now

thanks so much

[pandy]

pandy
Re: ffmpeg help not working

Check if your C:\ffmpeg-3.4-win64-static\bin exist and if there is ffmpeg.exe in this folder.

yes ffmpeg.exe is in that bin folder

My bad - seem this is issue with name - seem there is forbidden character in name

I cant see how to make that symbol @set filename=%~1 after the % sign I think its called tidle not sure now


EDIT: Silly me its LSHIFT and the # key like this ~ I just added that ~ symbol like you said between the % and the 1 so its like this @set filename=%~1

now it works seem weird to me as it worked before that ~ was there, but its working now

thanks so much

Next time just copy (Ctrl+C) and paste (Ctrl+V)

[JVRaines]

EDIT: Silly me its LSHIFT and the # key like this ~ I just added that ~ symbol like you said between the % and the 1 so its like this @set filename=%~1

now it works seem weird to me as it worked before that ~ was there, but its working now

thanks so much

You're welcome. Here's why it works: If you drag-and-drop a file on this script and there are any spaces in the pathname, then Windows will surround the value with quote marks. Since you are also putting quotes around %filename% in the call to ffmpeg, you will end up with doubled quotes on each side, like this

""C:\Users\Bozo\Desktop\My Lovely Video.mp4""

The doubled quotes are treated as empty strings, so the pathname is unquoted and ffmpeg breaks it up on the spaces. Thus, it sees only "C:\Users\Bozo\Desktop\My" as the input file.

Using the tilda in %~1 tells the command processor to remove any surrounding quotes from the parameter. Then, it becomes properly quoted in your call to ffmpeg.

[loa909]

well many thanks to all of your replies but now I have added that symbol ~ its working fine.