This is the command avisplit that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
avisplit - split AVI-files into chunks of a maximum size
SYNOPSIS
avisplit [ -i file -o base [ -s size ] [ -H num ] [ -t s1-s2[,s3-s4,..] -c -m -b num -f
commentfile ] ] [ -v ]
COPYRIGHT
avisplit is Copyright (C) by Thomas Oestreich.
DESCRIPTION
avisplit splits a single AVI-file into chunks of size size.
Each of the created chunks will be an independent file, i.e. it can be played without
needing any other of the chunk.
OPTIONS
-i file
Specify the filename of the file to split into chunks.
-o base
Specify the base of the output filename(s) avisplit will then split to
base-%04d.avi
-s size
Use this option to specify the maximum size (in units of MB) of the chunks avisplit
should create. 0 means dechunk, create as many files as possible.
-H num Create only the first num chunks then exit.
-t s1-s2[,s3-s4,..]
Split the input file based on time/framecode (hh:mm:ss.ms)
-c Together with -t. Merge all segments into one AVI-File again instead generating
seperate files.
-m Together with -t. Force split at upper bondary instead of lower border.
-b num Specify if avisplit should write an VBR mp3 header into the AVI file. Default is 1
because it does not hurt. num is either 1 or 0.
-f commentfile
Read AVI tombstone data for header comments from commentfile. See
/docs/avi_comments.txt for a sample.
-v Print only version information and exit.
EXAMPLES
The command
avisplit -s 700 -i my_file.avi
will split the file my_file.avi into chunks which's maximum size will not exceed 700 MB,
i.e. they will fit onto a CD, each. The created chunks will be named my_file.avi-0000,
my_file.avi-0001, etc.
avisplit -i my_file.avi -c -o out.avi -t 00:10:00-00:11:00,00:13:00-00:14:00
will grab Minutes 10 to 11 and 13 to 14 from my_file.avi and merge it into out.avi
BAD SYNCH
When you split a file with avisplit and the A/V sync for the first file is OK but the sync
on all successive files is bad then have a look at the output of tcprobe(1) (shortend).
| V: 25.000 fps, codec=dvsd, frames=250, width=720, height=576
| A: 48000 Hz, format=0x01, bits=16, channels=2, bitrate=1536 kbps,
| 10 chunks, 1920000 bytes
You'll see the AVI file has only 10 Audio chunks but 250 video chunks. That means one
audio chunk spans several video frames. avisplit can not cut a chunk in half, it only
handles complete chunks. If you do, say, avisplit -s 20, it is possible that the first
file will have 6 audio chunks and the second one only 4 meaning there is too much audio in
the first AVI file.
The solution is to remux the AVI file with
transcode -i in.avi -P1 -N 0x1 -y raw -o out.avi
(of course -N 0x1 is not correct for all AVI files). Now look at tcprobe again
| V: 25.000 fps, codec=dvsd, frames=250, width=720, height=576
| A: 48000 Hz, format=0x01, bits=16, channels=2, bitrate=1536 kbps,
| 250 chunks, 1920000 bytes
The data in this file is exactly the same (its bit-identical) as it was in in.avi; the AVI
file was just written in a different way, we do now have 250 audio chunks which makes
splitting much easier and more accurate for avisplit.
AUTHORS
avisplit was written by Thomas Oestreich
<ostreich@theorie.physik.uni-goettingen.de> with contributions from many others. See
AUTHORS for details.
Use avisplit online using onworks.net services
