darktable-org / darktable-org/rawspeed

Sony Software :ILCE-7M4 v1.10 YCbCr pseudo-raw files are not supported

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Dominant language
C++
Stars
456
Forks
147
PR merge metrics
No merged PRs in 30d

Description

Make : SONY
Camera Model Name : ILCE-7M4
Software : ILCE-7M4 v1.10

Bits Per Sample : 15 15 15
Y Cb Cr Coefficients : 0.2989959717 0.5870056152 0.1139984131
Y Cb Cr Sub Sampling : YCbCr4:2:2 (2 1)
Y Cb Cr Positioning : Co-sited

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by inspecting the rawspeed decoder entry points for Sony ILCE-7M4 files and compare them with the metadata in this issue, especially the YCbCr4:2:2 and 15-bit samples. Done means these pseudo-raw files decode successfully without regression; the issue names no specific source file or test.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
computer-vision
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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