2006-09-02 10:27:25 +00:00

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@author Mario Danic, Thomas Schmitt
@mainpage Libburn Documentation Index
@section intro Introduction
Libburn is an open-source library for reading, mastering and writing
optical discs. For now this means only CD-R and CD-RW.
The project comprises of several more or less interdependent parts which
together strive to be a usable foundation for application development.
These are libraries, language bindings, and middleware binaries which emulate
classical (and valuable) Linux tools.
Our scope is currently Linux 2.4 and 2.6 and we will have a hard time to widen
this for now, because of our history. The project could need advise from or
membership of skilled kernel people and people who know how to talk CD/DVD
drives into doing things.
We do have a workable code base for burning data CDs, though. The burn API is
quite comprehensively documented and can be used to build a presentable
We do have a functional binary which emulates parts of cdrecord in order to
prove that usability, and in order to allow you to explore libburn's scope
by help of existing cdrecord frontends.
@subsection components The project components (list subject to growth, hopefully):
- libburn the library by which preformatted data get onto optical media.
It uses either /dev/sgN (e.g. on kernel 2.4 with ide-scsi) or
/dev/hdX (e.g. on kernel 2.6).
libburn is the foundation of our cdrecord emulation.
- libisofs the library to pack up hard disk files and directories into a
ISO 9660 disk image. This may then be brought to CD via libburn.
libisofs is to be the foundation of our upcoming mkisofs emulation.
- cdrskin a limited cdrecord compatibility wrapper for libburn.
cdrecord is a powerful GPL'ed burn program included in Joerg
Schilling's cdrtools. cdrskin strives to be a second source for
the services traditionally provided by cdrecord.
cdrskin does not contain any bytes copied from cdrecord's sources.
Many bytes have been copied from the message output of cdrecord
runs, though.
See cdrskin/README for more.
- "test" is a collection of application gestures and examples given by the
authors of the library features. cdrskin for example originally
emerged from test/burniso.c and you can see traces of my first
steps in there. Explore these examples if you look for inspiration.
We plan to be a responsive upstream. Bear with us. Our build system is based on autotools.
User experience tells us that you will need at least autotools version 1.7.
To build libburn and its subprojects it should be sufficient to go into
its toplevel directory and execute
./bootstrap (needed if you downloaded from SVN and not a release tarball)
To make the libraries accessible for running resp. developing applications
make install
@section using Using the libraries
Both libraries are written in C language and get built by autotools.
Thus we expect them to be useable by a wide range of Linux-implemented
languages and development tools.
We are still practicing.
For the libburn library there is a reference and demo application
@subsection concepts Libburn library concepts
There are a few concepts to introduce in order for you to understand how to
use Libburn. So, lets start with them:
<li> Read - The process of reading the data on a disc for storage or
<li> Write - The process of writing data onto a disc to create a new
disc image or append to an existing one.
<li> Drive - A Drive is a hardware device used to reading and/or writing
discs. CD burners and CD-ROMs are examples of Drives.
@subsection working Working with the library
Now that you understand the above @ref concepts, you're ready to look at the
actual use of the library.
In general, using the library to perform a process consists of the following
<li> Initialize the library.
<li> Depends on wether you know the persisten drive address in advance
If yes:
2a. Aquire this drive alone and directly by function
burn_drive_scan_and_grab() and be done until step 5
If no address known yet:
2b. Scan for available Drives..
<li>b Choose a Drive for reading/writing and inquire its persistent address.
<li>b Shut down library, re-initialize it and like in step 2a aquire the
chosen drive by function burn_drive_scan_and_grab()
<li> Fill in the options for the operation.
<li> Wait for the operation to complete, displaying status along the wayi
if desired.
<li> Release the Drive.
<li> Destroy the library instance. (If you're done working with the library.)
@section libburner Libburner
libburner is a minimal demo application for the library libburn (see: libburn.h)
as provided on . It can list the available devices, can
blank a CD-RW and can burn to CD-R or CD-RW.
It's main purpose, nevertheless, is to show you how to use libburn and also
to serve the libburn team as reference application. libburner.c does indeed
define the standard way how above three gestures can be implemented and
stay upward compatible for a good while.
@subsection libburner-help Libburner --help
Usage: test/libburner
[--drive <address>|<driveno>|"-"]
[--verbose <level>] [--blank_fast|--blank_full]
[--burn_for_real|--try_to_simulate] [--stdin_size <bytes>]
<li> A bus scan (needs rw-permissions to see a drive): test/libburner --drive -
<li> Burn a file to drive chosen by number: test/libburner --drive 0 --burn_for_real my_image_file
<li> Burn a file to drive chosen by persistent address: test/libburner --drive /dev/hdc --burn_for_real my_image_file
<li> Blank a used CD-RW (is combinable with burning in one run): test/libburner --drive 0 --blank_fast
<li> Burn a compressed afio archive on-the-fly, pad up to 700 MB: ( cd my_directory ; find . -print | afio -oZ - ) | \
test/libburner --drive /dev/hdc --burn_for_real --stdin_size 734003200 -
<li>To be read from *not mounted* CD via: afio -tvZ /dev/hdc
Program tar would need a clean EOF which our padded CD cannot deliver.