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sony compression #44

Closed LebedevRI closed 7 years ago

LebedevRI commented 7 years ago

http://helpguide.sony.net/ilc/1450/v1/en/print.pdf says that there is 

Compressed:
Records images in compressed RAW format.
Uncompressed:
Records images in uncompressed RAW format. When [Uncompressed] is selected for [
RAW File Type], the file size of the image will be larger than if it were recorded in
compressed RAW format.

so Of the following brands we like to have: should read Sony: all the combinations of compression and bitness settings, that is: 12bit-compressed 12bit-uncompressed 14bit-compressed 14bit-uncompressed

and if possible the compression should be detected, i'm not sure yet which fields that is

Beep6581 commented 7 years ago

ILCE-7M2:

0x0103   -EXIF:Compression=Sony ARW Compressed
0x7000   -EXIF:SonyRawFileType=Sony Compressed RAW
0x9102   -EXIF:CompressedBitsPerPixel=8
0x2029   -MakerNotes:RAWFileType=Compressed RAW
0x0103   -EXIF:Compression=Uncompressed
0x7000   -EXIF:SonyRawFileType=Sony Uncompressed 14-bit RAW
0x9102   -EXIF:CompressedBitsPerPixel=16
0x2029   -MakerNotes:RAWFileType=Uncompressed RAW
LebedevRI commented 7 years ago

just to be clear, that is exiftool output, not exiv2, right?

Beep6581 commented 7 years ago

@LebedevRI yes.

LebedevRI commented 7 years ago

@andabata can the "so Of the following brands we like to have: should read Sony: all the combinations of compression and bitness settings, that is: 12bit-compressed 12bit-uncompressed 14bit-compressed 14bit-uncompressed" part be added right away, please? :)