Batch mux flv to mkv?

[Pitorasilo]

I have many flv videos (AVC/AAC) which I want to mux into a mkv video. Is there a way to mux all the videos at once. Because doing it one by one is taking to long. Thanks in advance

[poisondeathray]

ffmpeg

1) download ffmpeg, place copy of ffmpeg.exe in same folder as flv files

2) write the following in notepad, save it, rename extension .txt to .bat

for %%a in ("*.flv") do ffmpeg -i %%a -vcodec copy -acodec copy %%~na.mkv

3) double click .bat file

[bat999]

kudos to poisondeathray.
Neat solution.

The ffmpeg website is a bit confusing. This is where the Windows versions are, ffmpeg-latest :- http://tripp.arrozcru.org/

[Pitorasilo]

Thanx it does exactly what i wanted

[Gavino]

This is where the Windows versions are, ffmpeg-latest :- http://tripp.arrozcru.org/

That site is quite out of date - latest version there is from April 2009.
More recent builds can be found at http://ffmpeg.arrozcru.org/autobuilds/, but that site too is no longer being updated - last 'daily' build is from 17th Jan 2011.

[bat999]

This is where the Windows versions are, ffmpeg-latest :- http://tripp.arrozcru.org/

That site is quite out of date - latest version there is from April 2009.

No it isn't, this is the version from ffmpeg-latest:-

FFmpeg version SVN-r26268, Copyright (c) 2000-2011 the FFmpeg developers
  built on Jan  8 2011 18:14:39 with gcc 4.4.1

[Gavino]

Odd - I don't see that version on http://tripp.arrozcru.org/ - latest I see is r18639 from 21 April 2009.

(In any case, it's still older than the last one created on http://ffmpeg.arrozcru.org/autobuilds/, which is r26400 from 17 Jan.)

[AlanHK]

I suppose there is some reason that this isn't on Sourceforge?

[El Heggunte]

ffmpeg has moved from SVN to GIT.
The latest SVN build of ffmpeg @ SourceForge is 26112.
The autobuilds @ arrozcru used SVN.

Let's hope someone will write an idiot-proof guide to compiling ffmpeg on Windows.

[ic4andi]

Ok but how do you mux multiple .flv's into one .mkv in the ffmpeg command line?

[richter03]

Try on Drag Drop Convert, it can mux multiple file to MKV.

[kotekzot]

ffmpeg

1) download ffmpeg, place copy of ffmpeg.exe in same folder as flv files

2) write the following in notepad, save it, rename extension .txt to .bat

for %%a in ("*.flv") do ffmpeg -i %%a -vcodec copy -acodec copy %%~na.mkv

3) double click .bat file

That is wonderfully elegant, but it does not word with files that have non-ASCII characters in the name. Can this solution be made Unicode-friendly?

[AlanHK]

That is wonderfully elegant, but it does not word with files that have non-ASCII characters in the name. Can this solution be made Unicode-friendly?

Lots of command line programs can't cope with non-DOS names.
You need to reference the short filename, using the ~s modifier

I think :

for %%I in ("*.flv") do ffmpeg -i %%~sI -vcodec copy -acodec copy %%~nsI.mkv

would work. (Haven't tested it.)

[kotekzot]

Thanks, AlanHK, it works!