[FFmpeg-user] Old vs New Vesion of ffmpeg - Guidance needed.

Javier Hernandez javierhf7 at sympatico.ca
Mon Feb 1 15:06:38 CET 2016

Thanks Moritz. I applied the changes you suggested. The result is the same: no output whatsoever.

Guys, thanks a lot for having the time to look into this. I'll keep using the old version then.

-----Original Message-----
From: ffmpeg-user [mailto:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of Moritz Barsnick
Sent: January 31, 2016 11:04 AM
To: FFmpeg user discussions
Subject: Re: [FFmpeg-user] Old vs New Vesion of ffmpeg - Guidance needed.

On Sat, Jan 30, 2016 at 21:38:03 -0500, Javier Hernandez wrote:
> This program executes the batch files behind the scenes. There's no 
> way for me to see what is displayed once they are called.

Well, that's very unfortunate. That's where all the information is.

Please add "-report" to your batch files. That will create files named program-YYYYMMDD-HHMMSS.log in the current directory. Attach them to emails to this list (unless they are very large and full of repetitive errors - then cut out a large part of the repetitions in the middle, but don't omit beginning and end).

> If I try to use the new ffmpeg.exe, nothing is generated. No 
> error/warning messages at all.

Well, no wonder, if there is no way for you to see what is displayed.
I'm sure there's an error message. ;-) Please use the report option to check what actually went wrong.

> I hope it is a parameter not correctly setup or something like that.
> I think it's worth it upgrading to the new version, but I have no idea 
> what those changes might be.

Let me do some guessing:

Please change
> ffmpeg.exe -i %1 -y -acodec libmp3lame -ar 44100 -ab 64k %2 -ss %3 -t 
> %4
> ffmpeg.exe -i %1 -ss %3 -t %4 -y -acodec libmp3lame -ar 44100 -ab 64k 
> %2

Please change
> ffmpeg.exe -i %1 -s %3x%4 -b 500k -bt 100k -vcodec libx264 -acodec 
> libfaac -ar 44100 -ab 32k -ac 2 -y %2 -ss %5 -t %6
> ffmpeg.exe -i %1 -ss %5 -t %6 -s %3x%4 -b 500k -bt 100k -vcodec 
> libx264 -acodec libfaac -ar 44100 -ab 32k -ac 2 -y %2

Perhaps your new ffmpeg doesn't support libfaac anymore. With most recent ffmpeg, please use the native encoder (just "aac").

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