using output from mediainfo as variable in another command

Question

So I'm trying to setup an easy way of starting videos with a bat file, and having that run Mediainfo first to get the length of the video so it can then stop vlc or whatever else when it's done playing.

Complete name                            : C:\Users\Tyler\Desktop\Psych s05e11.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/iso2/avc1/mp41)
File size                                : 116 MiB
Duration                                 : 42 min 36 s
Overall bit rate                         : 382 kb/s
Writing application                      : Lavf55.13.102

That's the output from mediainfo I got in a txt file, I'm trying to just pull the 42 and the 36 from the duration bit and use it in another command. I should also add that these numbers have to be used separately. Thanks!

Edit: Thanks for replying everyone love the help; Here's what I'm trying to run now:

mediainfo.lnk --Language=raw --Output=General;%Duration% "C:\Users\Tyler\Desktop\Psych s05e11.mp4"

and the output is:

Now I need a way to take the first four digits and use them in a another command, somehow make 2556 a variable?

Can you post what you have tried? You can use FOR /F and FIND to solve this problem. — soja
– soja, Commented Oct 6, 2016 at 16:05
Kind of need to see how you are executing mediainfo before we can provide a solution. — Squashman
– Squashman, Commented Oct 6, 2016 at 16:23

Jérôme Martinez · Accepted Answer · 2016-10-06 16:29:05Z

1

If you need the duration, use e.g. this command:

mediainfo "--Output=General;%Duration%" YourFileName.ext

In a general way, when you think to some automation, prefer to use e.g.:

mediainfo -f --Language=raw  YourFileName.ext

and select the lines which better fits your need, avoid fields with "/String" because they are intended only for display (not for automation).

Jérôme, developer of MediaInfo.

answered Oct 6, 2016 at 16:29

Jérôme Martinez

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5 Comments

Tyler Lancaster Over a year ago

I'm running the command like so: mediainfo --Language=raw --Output=General;%Duration% "filename.ext" >> "outputfile.txt" and I'm only getting the duration like I want, thanks for that help!

Tyler Lancaster Over a year ago

Here's a weird problem I've run into; when I run the command out of a terminal like I've shown in the last comment I get the proper output, however using the exact same command in a batch file returns an output without any options, it runs as: mediainfo --Output=file:\\file.txt "filename.ext". Giving too much information! What could I do to get around that?

SachaDee Over a year ago

Just to tell you (As developper) you shoul never use the % as var definer in a CLI version of a soft. Better use another char like $. Anyway great soft !!

Jérôme Martinez Over a year ago

Not a problem of MediaInfo, this is a problem in your batch: % is used for variable, you forgot to escape it. mediainfo "--Output=General;%%Duration%%" %1

SachaDee Over a year ago

You're right i forgot the "string", Modified My Answer, Thanks

Tyler Lancaster · Accepted Answer · 2016-10-06 20:24:36Z

0

Okay here's what I did finally, thanks for all the help!

C:\mediainfo\MediaInfo.exe --Language=raw --Output=General;%%Duration%% "C:\Users\Tyler\Desktop\Psych_s05e11.mp4" >out.txt  
set /p $Duration= <out.txt
set $Duration=%$Duration:~0,4%

echo Result = %$Duration%
del out.txt
pause

and the output is:

C:\mediainfo\MediaInfo.exe --Language=raw --Output=General;%Duration%    "C:\Users\Tyler\Desktop\Psych_s05e11.mp4" >out.txt 
set /p $Duration=  <out.txt 
set $Duration=2556 
echo Result = 2556 
Result = 2556
del out.txt 
pause
Press any key to continue . . .

took @echo off outta there so you could see it all

answered Oct 6, 2016 at 20:24

Tyler Lancaster

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Comments

SachaDee · Accepted Answer · 2016-10-07 12:11:30Z

0

Using FOR /F

@echo off
for /f "delims=" %%a in ('mediainfo "--Output=General;%%Duration%%" "C:\Users\Tyler\Desktop\Psych\s05e11.mp4"') do set $Duration=%%a

Echo %$Duration%

Using a temporary file

@echo off
mediainfo.exe --Language=raw --Output=General;%%Duration%% "C:\Users\Tyler\Desktop\Psych s05e11.mp4" >out.txt  
set /p $Duration= <out.txt
set $Duration=%$Duration:~0,4%

echo Result = %$Duration%
del out.txt

Another way using @Jérôme Martinez [raw -output] idea. Without temporary file, using findstr :

@echo off
for /f "tokens=2 delims=:" %%a in ('mediainfo -f --Language=raw  "C:\Users\Tyler\Desktop\Psych s05e11.mp4" ^| findstr /i "duration"') do (
    set $Duration=%%a
    goto:next
)

:next
set $Duration=%$Duration:~1,4%
echo %$Duration%

edited Oct 7, 2016 at 12:11

answered Oct 6, 2016 at 18:37

SachaDee

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9 Comments

Tyler Lancaster Over a year ago

Thanks for the help; Seems closer than anything I've got so far! However the echo output is: Result = ~0,4

Tyler Lancaster Over a year ago

Figured out the path was just set up wrong, got that situated now the output is: Result = Alte

SachaDee Over a year ago

Ok and when you just execute mediainfo.lnk --Language=raw --Output=General;^%Duration^% "C:\Users\Tyler\Desktop\Psych s05e11.mp4" What is the exact output ? In all case you'll better work directly on the .exe and not on the .lnk

Tyler Lancaster Over a year ago

If I run it in a terminal I get the expected 2556249 but if I run that in a bat file the output is the huge list of stuff mediainfo would display by default, I'll try running it using the exe file instead

Tyler Lancaster Over a year ago

I've run it again using the exe file instead of a link, same output, long list of stuff I don't need. However if I do that command by itself it prints out just the Duration

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