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Support Sony Lossless YUV 4:2:0 compression #269

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merged 3 commits into from
Jan 14, 2023

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cytrinox
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Add support for special 4:2:0 compression.
I don't know if Sony or Canon has implemented it wrong as the LJPEG spec is not very specific at this point. Anyway, with some special tweaks the decompression works fine.

fixes #263

@cytrinox cytrinox added enhancement New feature or request arw labels Jan 14, 2023
@cytrinox cytrinox added this to the 0.5.2 milestone Jan 14, 2023
@cytrinox cytrinox self-assigned this Jan 14, 2023
@cytrinox cytrinox merged commit 9397de1 into dnglab:main Jan 14, 2023
@lclevy
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lclevy commented Jan 14, 2023

Is it different from Canon sraw and mraw ? http://lclevy.free.fr/cr2/#sraw

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Sony A7RM5 YUV compressed modes M and S for lossless not supported
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