NAME¶
oggCut - extracts parts of an ogg file (.ogv, .ogg and .oga)
SYNOPSIS¶
oggCut [options] inputfile outputfile
DESCRIPTION¶
oggCut creates a new ogg file named
outputfile as a subpart of the
original file named
inputfile
oggCut is able to cut video (theora) only files, audio (vorbis) only files or
files with both video and audio streams.
The start and end time for the cut area must be given in milliseconds with the
options -s and -e.
As a video stream consists of I‐frames (which are full pictures) and
P‐frames (which are delta pictures to the leading I‐frame) the
oggCut algorithm searches for the first I‐frame. If a video file would
start with a p‐frame, the player is not able to interpret this picture,
as the leading I‐frame (on where it is based) is not available. oggCut
starts the I‐frame search at the start time given by the -s option. So
expect a shorter video time than the calculated seconds for the new file.
oggCut does not do any reencoding, therefore the output quality is completely
the same as from the input file.
For those involved into the ogg container format: The file is cut on packet
basis, not on page basis.
There is another tool called oggCut out in the internet with a different
synopis. This one has not been written by the author of this tool you are
actually using.
OPTIONS¶
- -s
- Cut start position in ms. If the input file is a video
file, the cut area starts with the next keyframe found. Default: 0
Example: -s 5000
- -l
- Length of the cut area in ms. If -e is also given, the
length is ignored.
Example: -l 10000
- -e
- Cut end position in ms. If -l is also used, the end
position is prefered. If the end position is set to -1, the end of the
stream is assumed.
Default: -1
Example: -e 20000
EXAMPLE¶
oggCut -s 1000 -e 21000 myVideo.ogv myOutput.ogv
Creates a new video called myOutput.ogv from the video myVideo.ogv starting
after 1 second ending after 21 seconds
AUTHOR¶
Joern Seger <yorn at gmx dot net>
SEE ALSO¶
oggCat(1),
oggJoin(1),
oggSplit(1),
oggTranscode(1),
oggSlideshow(1),
oggThumb(1),
oggSilence(1)