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Thread: paq8px_v69kzu

  1. #1
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    Talking paq8px_v69kzu

    I have made another version.

    • Dynamic record model length up to 32 bytes (prints output of learned lens)
    • indirectmodel2 again
    • better utf detection - text min length 1024*2 bytes
    • split compression by type
    • Modified BMP 8,24 bit - do gradient estimation (better results on non-dithered 8bit images)
    • split compression by type
    • static dict preprocess (detected text/can be commented out)
    • default compress option 7


    Record model now works better on this problem:
    http://encode.su/threads/1088-Someti...teresting-file

    detects length in wav files that have 32bit samples (floating point)

    Attachment has source and compiled version.
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    KZo


  2. #2
    Programmer Jan Ondrus's Avatar
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    Crash on this file
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    • File Type: 7z _.7z (13.0 KB, 100 views)

  3. #3
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    Quote Originally Posted by Jan Ondrus View Post
    Crash on this file
    Cant reproduce:
    Creating archive G:\paq\p\_.7z.paq8pxkzu with 1 file(s)...

    File list (12 bytes)
    Compressed from 12 to 15 bytes.

    1/1 Filename: G:/paq/p/_.7z (13312 bytes)
    Block segmentation:
    0 | default | 512 bytes [0 - 511]
    1 | hdr | 806 bytes [512 - 1317]
    2 | 8b-image | 2280 bytes [1318 - 3597] (width: 4)
    3 | default | 1010 bytes [3598 - 4607]
    4 | text | 8154 bytes [4608 - 12761]
    Encoded file 5839
    5 | default | 550 bytes [12762 - 13311]
    Compressed from 13312 to 2972 bytes.

    Total 13312 bytes compressed to 2999 bytes.
    Dynamic record model with len upto 32
    Len Final count
    2 15
    4 153
    Time 1.47 sec, used 846955390 bytes of memory
    decompress is identical

    Did you use my compile?
    Last edited by kaitz; 11th October 2011 at 00:10. Reason: ?
    KZo


  4. #4
    Member BetaTester's Avatar
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    G:\>paq8px_v69kzu.exe -8 _.7z
    Creating archive _.7z.paq8pxkzu with 1 file(s)...

    File list (12 bytes)
    Compressed from 12 to 15 bytes.

    1/1 Filename: _.7z (13313 bytes)
    Block segmentation:
    0 | default | 512 bytes [0 - 511]
    1 | hdr | 806 bytes [512 - 1317]
    2 | 8b-image | 2280 bytes [1318 - 3597] (width: 4)
    3 | default | 1010 bytes [3598 - 4607]
    4 | text | 8154 bytes [4608 - 12761]
    Encoded file 5841
    5 | default | 551 bytes [12762 - 13312]
    Compressed from 13313 to 2978 bytes.

    Total 13313 bytes compressed to 3005 bytes.
    Dynamic record model with len upto 32
    Len Final count
    2 15
    3 1
    4 153
    Time 1.05 sec, used 1660650375 bytes of memory


    G:\>paq8px_v69kzu.exe _.7z.paq8pxkzu
    Extracting ./_.7z 13313 -> Encoded file 5841

    bla bla bla bla...

    Time 1.22 sec, used 1660648322 bytes of memory


    WinXp 2003 pro Sp2 X64, AMD Phenom II, 4GB of RAM

  5. #5
    Member Skymmer's Avatar
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    Quick test at -8 on TestBed.tar from my PAQ TestBed Set.
    Tested on i5-2500k, 16G RAM, WinXP x64 SP2

    Code:
                   size        time        memory
                ---------     ------     ----------
    px69        5 303 486     655.58     1974723284
    px69kzu     5 303 882     737.00     2042492948
    For px69 I used paq8px_v69_sse2.exe compile by LovePimple. I also tried to test the M4ST3R compiles but its appeared that all of them doesn't work for this file on my system. They report:
    Code:
     13          | 24b-image |    838572 bytes [2465448 - 3304019] (width: 1788)
    Out of memory
    Last edited by Skymmer; 11th October 2011 at 02:12.

  6. #6
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    Matt Mahoney's Avatar
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    I reproduced the error. "paq8px_v69kzu -5 x _.7z" crashes when temp_HKCC_dict1.dic is not in the current directory.

    It also has the g++ tmpfile() bug. I get "tmpfile: Permission denied" when run on the C drive because in Vista, the root on the C drive does not have write permission to produce a temporary file. This is a problem in the g++ library. It ought to use %TEMP% instead. I get around it by running it from the D drive.

  7. #7
    Programmer Jan Ondrus's Avatar
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    Quote Originally Posted by Matt Mahoney View Post
    I reproduced the error. "paq8px_v69kzu -5 x _.7z" crashes when temp_HKCC_dict1.dic is not in the current directory.
    That was the problem temp_HKCC_dict1.dic was missing

  8. #8
    Member BetaTester's Avatar
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    ????????????????????
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