Copyright

libopenraw is Copyright (c) 2005-2024 Hubert Figuière and other contributors. See the respective files. It is licensed under LGPLv3 or later. See files COPYING and COPYING.LESSER

Code below src/mp4/parse is released under MPL-2.0 license. See the MPL-2.0 file. It is a modified version of https://github.com/mozilla/mp4parse-rust

Some files may be individually licensed under LGPL-2.1-or-later. See the SPDX license info built-in.

Code of Conduct:

Contributors to this project agree to the Freedesktop.org Code of Conduct:

https://www.freedesktop.org/wiki/CodeOfConduct/

Prerequistes to build:

- a C++ 11 compiler (tested on gcc 4.7 and up)
- libboost 1.33.1 (Boost.String, Boost.Test, Boost.Variant)
- libjpeg
- libxml > 2.5.0 (for the test suite)
- libcurl (option for the test suite bootstrap)
- Rust 1.64

If building from the git tree you also need:

- automake/autoconf
- autoconf-archive
- pkg-config for the associated m4 macros

Optional Gnome support

- gdkpixbuf

Rust crate

Starting with 0.4.0, libopenraw is developed as a Rust native crate with a C API. There the standard layout for a Rust crate applies, and lib/ contains the crate part to build the dynamic library for the C API.

Supported file formats

Here are the supported file formats. For details per-camera, see below:

- Canon CR2
- Canon CR3
- Canon CRW (not those coming from CHDK firmware like A610)
- Nikon NEF and NRW
- Olympus ORF
- Pentax PEF
- Epson ERF
- DNG
- GoPro GPR
- Sony ARW and SR2
- Minolta MRW
- Panasonic RAW and RW2
- Fujifilm RAF

How to build:

Using automake/autoconf:

$ ./autogen.sh
$ ./configure --prefix=...
$ make
$ make install DESTDIR=...

Supported formats:

Y Yes, it is there. (Untested as I do not have a sample but the format is known to be similar) Yes, it is for the whole format. N Not supported. B Known to be Broken on some models. (Needs to be fixed. Further work is required) X Not needed.

Sample file needed.

                          Thumbnail
                         /  Raw bitstream
                         | /  Raw decompression
                         | | /  Orientation Tag
                         | | | /  Bayer Type
                         | | | | /  Type ID
                         | | | | | /  Active Area (ROI)
                         | | | | | | /  Color Matrices
                         | | | | | | | /  Exif and MakerNotes
                         | | | | | | | | /  Rendering
                         | | | | | | | | | /  White Balance
                         | | | | | | | | | | /  User crop
                         | | | | | | | | | | | /
Canon CR2                Y Y Y Y Y Y Y Y Y Y Y Y
Canon CR3                Y Y N Y Y Y Y Y Y N N Y
Canon CRW                Y Y Y Y Y Y Y Y Y B Y X
Canon CRW CHDK           N N N N N N N N N N N N
(unofficial firmware)
Nikon NEF                Y B B Y Y Y N Y Y B B Y
Nikon NRW                Y     Y   Y N Y Y B B Y
Olympus ORF              Y Y Y Y Y Y N Y Y Y Y Y
Adobe DNG                Y Y Y Y Y Y Y Y Y Y Y Y
GoPro GPR                Y Y N Y Y Y Y Y X N Y Y
Sony SR2                 Y Y X Y N Y N Y Y Y   X
Sony ARW                 Y Y N Y N Y N Y Y     Y
Pentax PEF               Y Y Y Y Y Y N Y Y Y Y Y
Epson ERF                Y Y X Y Y Y N Y Y Y Y X
Minolta MRW              Y Y X N Y Y N Y Y Y Y X
Panasonic RAW            Y Y X Y Y Y Y Y Y B Y Y
Panasonic RW2            Y Y B Y Y Y Y Y Y Y Y Y
FujiFilm RAF             Y Y Y Y Y Y Y Y Y B Y Y

Unsupported

Sony SRF                 N N N N N N N N
Kodak DCR                N N N N N N N N
Kodak KDC                N N N N N N N N
Foveon X3F               N N N N N N N N
Mamiya MEF               N N N N N N N N
Samsung SRW              N N N N N N N N

Test suite

There is a test suite driven by an XML file. It require you to provide your own RAW files and configure it. testsuite/testsuite.xml is an example of valid XML configuration file that works on my local machine.

TODO2: provide a better description of the test file.

TODO3: fix ordiag to allow outputting a test case in XML.

Running the testsuite

$ make check

This will run it automatically.

If you need to bootstrap the testsuite, you can go as follow:

WARNING: The bootstrap will download "random" files from the internet. They currently aren't validated.

$ make $ cd testsuite $ ./testsuite -b -d directory

Here directory is the existing directory where files will be downloded. If you build in a different directory than the source directory, you need to set the srcdir environment to the path where the testsuite binary is build.

References

Many online resources, including open source software were used (list non exhaustive):

dcraw was the first open source effort out there. We all owe its authors and contributor a lot.

CR3

Mozilla MP4 Rust parser, that is being used: https://github.com/mozilla/mp4parse-rust/ Laurent Clevy CR3 documentation, provided lot of information: https://github.com/lclevy/canon_cr3

Exif & MakerNote

ExifTool is used to provide documentation and the tag table: https://exiftool.org/ https://exiftool.org/makernote_types.html Exiv2 knowledge: https://www.exiv2.org/makernote.html libexif: https://libexif.github.io/ exifprobe: https://github.com/hfiguiere/exifprobe/

Contributors

• DorotaC