[IMX8MP] ISP tuning tool raw data endianness

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[IMX8MP] ISP tuning tool raw data endianness

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jjiimmyy
Contributor II

I am using ISP tuning tool to capture RAW frame for the ISP calibration.

I can view, display, capture using the ISP tools. But the problem is data captured/saved is (RAW 12) 16 bits BIG ENDIAN format.

When the images are fed into the calibration tool, calibration tools expect data to be LITTLE ENDIAN.  I know in all black scene, each pixel is 64. But each pixel in the file is 0x4000. 

There are OV2775 raw images included as examples. And they are little endian. I use 7yuv to verify the endianness of the raw image. 

Why is ISP tool capturing image in BIG endian but ISP calibration tool expects data in LITTLE endian?

How I can use the ISP tool to capture RAW image in LITTLE endian?

 

ISP tools is 6.1.22 but newest tool ISP tool 6.6.23 has same problem.

 

 

 

 

 

 

 

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joanxie
NXP TechSupport
NXP TechSupport

yes, this is exist issue, customer need convert it by themselves now, VSI would align them later

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