Concatenate several OGG/OGM files into one big OGG/OGM file
see also :
ogmmerge - ogminfo - ogmdemux - ogmsplit - dvdxchap
[options] -o outname inname1
[inname2 [inname3 ...]]
add an example, a script, a trick and tips
no example yet ...
... Feel free to add your own example above to help other Linux-lovers !
NOT work at the moment. It is work in progress. I included
it just out of laziness (otherwise I’d have to remove
it from the Makefile/configure stuff prior to releasing this
can be used to concatenate several OGG/OGM files into one
big file if they are of the same type. For a more in-depth
description refer to the LIMITATIONS section.
-o, --output outname
etc as the sources.
Specifies a manual sync value
in ms that will be added to each stream’s presentation
timestamps along with the value calculated by the chosen
sync algorithm (see the -s option). This option
can be used for each input file although it has no effect if
used for the first one as well.
Uses sync mode nr. Valid
values are 0 - 4. The default value is shown
on ogmcat’s help screen.
Disable the safety checks made
prior to the concatenating. The resulting file may be
unplayable. See the LIMITATIONS section for further
Be verbose and show each OGG
packet. Can be used twice to increase verbosity.
Show this help.
Show version information.
Concatenating streams is difficult at the best and might even be
impossible. Therefore ogmcat makes very strict comparisons
between the streams contained in the input files. The checks done
general: All streams with the same serial number must be of the
same type (video, audio, Vorbis audio or text streams).
general: If a stream exists in one file it must in the
other files as well.
video streams: The codec FourCC, width, height and FPS must
Vorbis streams: The sample rate and the number of channels must
other audio streams: The codec ID, sample rate, bits per sample
and number of channels must match.
text/subtitle streams: The ’time unit’ must match.
The user can forcefully override the last four checks with the
-n parameter. The checks marked as ’general’
cannot be overridden this way.
Audio/video synchronization might not be ok in the resulting file
even if the source files were perfectly in sync. The user can
experiment with the -s parameter which causes
ogmcat to use slightly different algorithms for
calculating the granulepos values for the audio and text streams.
The range of valid parameters will be printed on
ogmcat’s help screen.
If none of the synchronization algorithms provided works
correctly then the user can also manually add a synchronization
offset using the -m option for each input file.
The newest version can always be found at
ogminfo , ogmdemux , ogmsplit ,
was written by Moritz Bunkus <moritz[:at:]bunkus[:dot:]org>.