Compressed RAW format from Sony ILCE-7CR is not supported

[lenianiva]

Describe the bug

The Sony ILCE-7CR camera can generate losslessly compressed RAW files. These files can show thumbnails but could not be opened in darkroom.

Steps to reproduce

Load a picture taken with ILCE-7CR set to lossless compression mode into dark room.

Expected behavior

The file should load successfully into darkroom

Logfile | Screenshot | Screencast

     5.4452 [rawspeed] (DSC06479.ARW) void rawspeed::ArwDecoder::DecodeLJpeg(const rawspeed::TiffIFD*), line 306: Unsupported photometric interpretation: 6
     5.4452 [libraw_open] extensions whitelist: `cr3'
     5.4453 [qoi_open] no proper file header in /home/aniva/Pictures/photography/20241103-filoli/calibration/DSC06479.ARW
     5.4474 [temperature] failed to read camera white balance information from `DSC06479.ARW'!
     5.4476 [temperature] failed to read camera white balance information from `DSC06479.ARW'!
     5.8910 [temperature] failed to read camera white balance information from `DSC06479.ARW'!
     5.8910 [temperature] `Sony ILCE-7CR' color matrix not found for image
     5.8912 [temperature] failed to read camera white balance information from `DSC06479.ARW'!

Commit

No response

Where did you obtain darktable from?

distro packaging

darktable version

4.8.1

What OS are you using?

Linux

What is the version of your OS?

ArchLinux

Describe your system?

Wayland and gtk4 1:4.16.2-1

Are you using OpenCL GPU in darktable?

I dont know

If yes, what is the GPU card and driver?

No response

Please provide additional context if applicable. You can attach files too, but might need to rename to .txt or .zip

The example file is too big to upload directly so here is a link

[pehar1]

As far as I can see on https://www.darktable.org/resources/camera-support/ this camera is not (yet) supported.

[lenianiva]

As far as I can see on https://www.darktable.org/resources/camera-support/ this camera is not (yet) supported.

There's a row for this camera. Its just that WB and noise profile are not supported right?

The uncompressed version of RAW files could be read without any issues.

[victoryforce]

As far as I can see on https://www.darktable.org/resources/camera-support/ this camera is not (yet) supported.

There's a row for this camera. Its just that WB and noise profile are not supported right?

Not just that (BTW, you can contribute to supporting WB and noise profile).

The uncompressed version of RAW files could be read without any issues.

For this camera, only part of the raw formats is supported. At the very beginning of the camera support page it says:

The following formats are explicitly not supported:
- Sony downsized lossless ARWs (“M” for full-frame, “S” for full-frame & APS-C)

[kmilos]

Duplicate of darktable-org/rawspeed#442