oggz-chop - Online in the Cloud

PROGRAM:

NAME

oggz-chop — Extract the part of an Ogg file between given start and/or end times.

SYNOPSIS

oggz-chop [-o filename | --output filename ] [-s start_time | --start start_time ] [-e
end_time | --end end_time ] [-k | --no-skeleton ] filename

oggz-chop [-h | --help ] [-v | --version ]

Description

oggz-chop chops a section of an Ogg file. It correctly interprets the granulepos
timestamps of Ogg CELT, CMML, Dirac, FLAC, Kate, PCM, Speex, Theora and Vorbis bitstreams.
Run oggz-known-codecs(1) for a full list of codecs known by the installed version of oggz.

The output file contains copies of the headers of the input file, and all the codec data
required to correctly decode the content between the start and end times specified on the
commandline. For codecs with data dependencies like video keyframes, the keyframe prior to
the starting time will be included in the output.

Note that oggz-chop operates by copying pages of Ogg data; it does not strip partial
packets from the first or last data page included in the output. It does however ensure to
set the end of stream flag on the last page of each logical bitstream.

Skeleton handling: By default, the output will contain a Skeleton track specifying the
start of the chop as presentation time.

Options

oggz-chop accepts the following options:

Output options
-o filename, --output filename
Write output to the specified filename instead of printing it to standard
output.

-s start_time, --start start_time
Specify the start time of the chopped section to output.

-e end_time, --end end_time
Specify the end time of the chopped section to output.

-k , --no-skeleton
Do NOT include a Skeleton bitstream in the output.

-h, --help
Display usage information and exit.

-v, --version
Output version information and exit.

EXAMPLES

Extract the first minute of file.ogx:

oggz chop -e 1:00 file.ogx

Extract from the second to the fifth minute of file.ogx:

oggz chop -s 2:00 -e 5:00 -o output.ogx file.ogx

Extract, specifying SMPTE-25 frame offsets:

oggz chop -s smpte-25:00:02:03::12 -e smpte-25:00:05:02::04 -o output.ogv file.ogv

Server configuration

The following configuration for Apache httpd will enable oggz-chop. As with most Apache
directives, this may of course be restricted to particular Directories or Locations:

ScriptAlias /oggz-chop /usr/bin/oggz-chop

Action application/ogg /oggz-chop

HTTP/1.1 Cacheability
oggz-chop generates Last-Modified HTTP headers, and responds correctly to If-Modified-
Since conditional GET requests.

Use oggz-chop online using onworks.net services