batch file help

[bigC]

I'm trying to convert a custom ffmpeg conversion thing in my config.xml to a string I can use in a .bat file. I just can't figure it out. Heres the bit I want to use,

Code:

<Conversion name="Make DVD ready" cmd=" -y -i {SOURCE_FILE} -sc_threshold 1000000000  -flags +cgop+ildct -target ntsc-dvd -f dvd -b 3000k -vcodec mpeg2video -acodec mp2 -ab 128 {DEST_FILE}" targetExtension=".new.mpg" />

I pieced together some code I found in the wiki and on this forum and came up with this,

Code:

@echo off

cd “C:\Program Files\devnz\gbpvr\Third Party”
FFmpeg\ffmpeg.exe -y -i “%~dpn1.mpg” -sc_threshold 1000000000 -flags +cgop+ildct -target ntsc-dvd -f dvd -b 3000k -vcodec mpeg2video -acodec mp2 -ab 128 “%~dpn1.new.mpg"

It doesn't work. What am I doing wrong? Can someone help? This is my first attempt at creating a batch file so I'm rather clueless at the moment. I hope to improve.

Thanks

[JavaWiz]

I'm trying to convert a custom ffmpeg conversion thing in my config.xml to a string I can use in a .bat file. I just can't figure it out. Heres the bit I want to use,

Code:

<Conversion name="Make DVD ready" cmd=" -y -i {SOURCE_FILE} -sc_threshold 1000000000  -flags +cgop+ildct -target ntsc-dvd -f dvd -b 3000k -vcodec mpeg2video -acodec mp2 -ab 128 {DEST_FILE}" targetExtension=".new.mpg" />

I pieced together some code I found in the wiki and on this forum and came up with this,

Code:

@echo off

cd “C:\Program Files\devnz\gbpvr\Third Party”
FFmpeg\ffmpeg.exe -y -i “%~dpn1.mpg” -sc_threshold 1000000000 -flags +cgop+ildct -target ntsc-dvd -f dvd -b 3000k -vcodec mpeg2video -acodec mp2 -ab 128 “%~dpn1.new.mpg"

It doesn't work. What am I doing wrong? Can someone help? This is my first attempt at creating a batch file so I'm rather clueless at the moment. I hope to improve.

Thanks

What is failing exactly? Are you getting any error messages?

[dgeezer]

put the quotes all the way to the end of the .exe

Like this “C:\Program Files\devnz\gbpvr\Third Party\ffmpeg.exe"

also just specifying -target ntsc-dvd and an output file might be enough.

[dgeezer]

I found this on my pc:

"C:\Program Files\devnz\gbpvr\Third Party\FFmpeg\ffmpeg.exe" -i %1 -target ntsc-dvd -acodec copy "%~dpn1_mvp.mpg"

I used this as a one line batch file to downconvert HD streams to play on my MVP.

Copy this to a new text file name it something like convert.bat and then drag the video to it. The command window should open and you'll see ffmpeg running and running and running.....

Actually you would need to change the acodec to mp2 if you're downconverting since most HDTV is AC3.

[bigC]

put the quotes all the way to the end of the .exe

Like this “C:\Program Files\devnz\gbpvr\Third Party\ffmpeg.exe"

You mean “C:\Program Files\devnz\gbpvr\Third Party\FFmpeg\ffmpeg.exe"

I tried that originaly.

The error I get is,

The file name, directory name, or volume label syntax is incorrect.
The system cannot find the path specified.

[JavaWiz]

You might try:

Code:

@echo off
Echo Changing to Utility Directory...
pushd C:\Program Files\devnz\gbpvr\Third Party
Echo.
Echo Attempting to convert %1
FFmpeg\ffmpeg.exe -y -i "%1" -sc_threshold 1000000000 -flags +cgop+ildct -target ntsc-dvd -f dvd -b 3000k -vcodec mpeg2video -acodec mp2 -ab 128 "%~dpn1.new.mpg"
Echo.
Echo Conversion Complete.  %ERRORLEVEL%
popd
Echo.

This should output some messages along the way so you can determine where the error is occuring. I can't tell you if the command parameters are exactly correct, but it should find the program and attempt to execute.

Note that i changed the hard coded -i “%~dpn1.mpg” to -i "%1". The orginal version would only work if the input file had an .mpg extension.

[bigC]

I found this on my pc:

"C:\Program Files\devnz\gbpvr\Third Party\FFmpeg\ffmpeg.exe" -i %1 -target ntsc-dvd -acodec copy "%~dpn1_mvp.mpg"

I used this as a one line batch file to downconvert HD streams to play on my MVP.

Copy this to a new text file name it something like convert.bat and then drag the video to it. The command window should open and you'll see ffmpeg running and running and running.....

Actually you would need to change the acodec to mp2 if you're downconverting since most HDTV is AC3.

OK, that created a file of 0 bytes?

I'll try yours next javawiz.

My tuner card doesn't record to dvd ready mpgs so before I can burn a show I must do this conversion.

[bigC]

Javawiz, I just tried yours and got this error,

C:\Documents: I/O error occured
Usually that means the input file is truncated and/or corrupted.

Edit: It seems to be getting hung up on spaces in the path to my mpg. If I put in a top level folder and remove all spaces it works. Like c:\shows\myshow.mpg works but c:\my shows\my show.mpg does not. How do I fix that?

[JavaWiz]

Ok, sorry missed some quotes...

should be

pushd "C:\Program Files\devnz\gbpvr\Third Party"

And, the echo statement "attempting to convert...."
does it list the correct filename? (ie it's not truncated)?

[pBS]

try this...

Code:

@echo off
Echo.
Echo Attempting to convert %1
"c:\program files\devnz\gbpvr\third party\ffmpeg\ffmpeg.exe" -y -i "%~1" -sc_threshold 1000000000 -flags +cgop+ildct -target ntsc-dvd -f dvd -b 3000k -vcodec mpeg2video -acodec mp2 -ab 128 "%~dpn1.new.mpg"
Echo.
Echo Conversion Complete.  %ERRORLEVEL%
Echo.

it will work whether incoming file has quotes or not, and doesn't need to change any directories...

just adjust the cmd line for your ffmpeg's location.
%~1 removes any quotes, and "%~1" removes any if found, and adds some..
[to avoid double-double quotes]

oh and use quotes around the input filename!
like: convert.bat "c:\some dir\some file.mpg"
otherwise the batch file sees it as %1 %2 %3 instead of just %1 cuz of the spaces..