how to compress a yuv420 raw data using opj_compress

[gcode-importer]

Originally reported on Google Code with ID 357

What steps will reproduce the problem?

I using the command : "opj_compress -i 1920x540_i420.raw -o image.j2k -F 1920,540,3,8,u@1x1:2x2:2x2"
to compress a yuv420 raw data, buf failed.
How can I do...


What is the expected output? What do you see instead?

I got this error:
[INFO] tile number 1 / 1
*** glibc detected *** opj_compress: munmap_chunk(): invalid pointer: 0xb61c7008 ***


What version of the product are you using? On what operating system?

my version is openjpeg-2.1.0, OS is ubuntu12.04

Reported by dhz6110 on 2014-06-19 08:10:48

[gcode-importer]

I got the answer, the cmd is 
"opj_compress -i 1920x540_i420.raw -o image.j2k -F 1920,540,3,8,u@1x1:2x2:2x2 -mct
0"

but the result is also wrong, the color is all red! I don't know Why.

Reported by dhz6110 on 2014-06-19 10:41:00

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- _Attachment: [image.j2k](https://storage.googleapis.com/google-code-attachments/openjpeg/issue-357/comment-1/image.j2k)_

[gcode-importer]

I have found the correct way, the format *.jp2 is ok, like this:
"opj_compress -i 1920x540_i420.raw -o image.jp2 -F 1920,540,3,8,u@1x1:2x2:2x2 -mct
0",
the color is all right now.

I have found a little error in convert.c when compress yuv422 raw data, and I put it
in file convert.diff.

Reported by dhz6110 on 2014-06-24 07:51:19

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- _Attachment: [1920x540_i420yuv.raw](https://storage.googleapis.com/google-code-attachments/openjpeg/issue-357/comment-2/1920x540_i420yuv.raw)_ - _Attachment: [420.jp2](https://storage.googleapis.com/google-code-attachments/openjpeg/issue-357/comment-2/420.jp2)_ - _Attachment: [1920x540_i422yuv.raw](https://storage.googleapis.com/google-code-attachments/openjpeg/issue-357/comment-2/1920x540_i422yuv.raw)_ - _Attachment: [422.jp2](https://storage.googleapis.com/google-code-attachments/openjpeg/issue-357/comment-2/422.jp2)_ - _Attachment: [convert.diff](https://storage.googleapis.com/google-code-attachments/openjpeg/issue-357/comment-2/convert.diff)_

[gcode-importer]

Fixed by revision #2873.
MCT is automatically disabled when subsampling is detected (this is also true when
the library is used without opj_compress).

Bug in convert.c has also been fixed.

Thanks for having spotted this.

Reported by detonin on 2014-07-03 09:19:42

• Status changed: Fixed