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Old 10-24-2018, 03:37 PM   #1
mr.simo
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Registered: Feb 2010
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libjpeg - Huffman table 0x00 was not defined


Hello,

I am experiencing problems in decoding MJPEG frames from a camera with a C program.

Since each frame is encoded in JPEG format I am using libjpeg version 9 to decode it but I am getting the error

Code:
Huffman table 0x00 was not defined
so no decoding is possible (program stops immediately ...).

If I open the frame with a image viewer tool (as GIMP) I can see the frame correctly.
Do someone knows if it's possible to get rid of this error and perform decoding with libjpeg ?

It seems that libjpeg looks for the Huffman table.
From the source code of jpeglib.h at line 588:

https://github.com/LuaDist/libjpeg/blob/master/jpeglib.h

seems that setting the arith_code flag to true makes the lib to don't look for the Huffman table...
But I get the same results...

Any ideas ?

Thank you in advance.
Regards,
s.

Last edited by mr.simo; 10-24-2018 at 03:48 PM.
 
  


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