[MEncoder-users] Audio format 0x4134504d is incompatible with '-oac copy',

[Marc MERLIN]

Howdy,

I'd like to concatenate several files from a gopro into a single file.
But I can't find the right mencoder options to use so that I don't re-encode
the files.

I've tried something like this, can you recommend something better/a fixed command line?

Thanks,
Marc

gandalfthegreat [mc]$ mencoder -ovc copy -oac copy -of lavf -lavfopts format=mp4 gopr0005.mp4 -o gopro_0004.avi
MPlayer SVN-r34531 (C) 2000-2010 MPlayer Team
success: format: 0  data: 0x0 - 0x506212
libavformat version 53.29.100 (internal)
libavformat file format detected.
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (aac), -aid 0, -alang eng
VIDEO:  [H264]  1280x720  24bpp  29.970 fps  11179.0 kbps (1364.6 kbyte/s)
[V] filefmt:44  fourcc:0x34363248  size:1280x720  fps:29.970  ftime:=0.0334
** MUXER_LAVF *****************************************************************
REMEMBER: MEncoder's libavformat muxing is presently broken and can generate
INCORRECT files in the presence of B-frames. Moreover, due to bugs MPlayer
will play these INCORRECT files as if nothing were wrong!
*******************************************************************************
OK, exit.
videocodec: framecopy (1280x720 24bpp fourcc=34363248)
Audio format 0x4134504d is incompatible with '-oac copy', please try '-oac pcm' instead or use '-fafmttag' to override it.

Exiting...

-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/