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    #11
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    Quote Originally Posted by tester13 View Post
    I don't get how to make JPEGsnoop to work with GH1 MOV files.
    It needs some modifications.
    I analysed original files from http://www.dpreview.com/reviews/pana...gh1/page19.asp which works fine.

    Also billy fattey above seems to have had success with JPEGsnoop and his patched movie file.


     

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    #12
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    Quote Originally Posted by Martin Koch View Post
    I analysed original files from http://www.dpreview.com/reviews/pana...gh1/page19.asp which works fine.

    Also billy fattey above seems to have had success with JPEGsnoop and his patched movie file.
    When I first opened the .mov with JPEGsnoop it said, "NOTE: File did not start with JPEG marker. Consider using [Tools->Img Search Fwd] to locate embedded JPEG."

    So I searched forward 2 or 3 times until it found a frame.


     

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    #13
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    Quote Originally Posted by billy fattey View Post
    When I first opened the .mov with JPEGsnoop it said, "NOTE: File did not start with JPEG marker. Consider using [Tools->Img Search Fwd] to locate embedded JPEG."

    So I searched forward 2 or 3 times until it found a frame.

    Yes that's the normal behaviour. I'm glad it works with patched files.
    I remember on some samples of movie files from other cameras I also found thumbnail images so make sure you check the frame size to be sure you're looking at an actual movie frame.


     

  4. Collapse Details
    This is from the .mov that I created
    #14
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    QUALITY SETTINGS [ 384, 330, 300, 276 ]
    TABLE SETTINGS [ 24, 24, 24, 24 ]

    No 1080p or anything like that just standard 720p mjpeg 30fps
    File is 79.1 mbps according to Quick-time
    3.36 pTool set

    Original File to come...


    Table from JPG in folder

    Define a Quantization Table.
    OFFSET: 0x00007602
    Table length = 132
    ----
    Precision=8 bits
    Destination ID=0 (Luminance)
    DQT, Row #0: 1 1 1 1 2 1 3 3
    DQT, Row #1: 1 1 1 1 1 2 3 3
    DQT, Row #2: 1 1 1 1 1 2 4 3
    DQT, Row #3: 1 1 1 2 3 3 5 5
    DQT, Row #4: 1 1 2 3 3 4 3 6
    DQT, Row #5: 2 2 3 3 4 5 4 5
    DQT, Row #6: 1 3 5 4 5 6 5 5
    DQT, Row #7: 3 4 5 5 6 6 5 5
    Approx quality factor = 97.27 (scaling=5.47 variance=2.65)
    ----
    Precision=8 bits
    Destination ID=1 (Chrominance)
    DQT, Row #0: 1 1 1 1 5 5 5 5
    DQT, Row #1: 1 1 2 3 5 5 5 5
    DQT, Row #2: 1 2 3 5 5 5 5 5
    DQT, Row #3: 1 5 5 5 5 5 5 5
    DQT, Row #4: 3 5 5 5 5 5 5 5
    DQT, Row #5: 5 5 5 5 5 5 5 5
    DQT, Row #6: 5 5 5 5 5 5 5 5
    DQT, Row #7: 5 5 5 5 5 5 5 5
    Approx quality factor = 97.48 (scaling=5.04 variance=0.70)

    Table from using 'Frame-Forward x3 (maybe 3-4 frames into the .mov file)' in JPEGsnoop tools of .mov file.
    CTRL+2 advances the frame quickly without using the menu.....

    *** Marker: DQT (xFFDB) ***
    Define a Quantization Table.
    OFFSET: 0x00131762
    Table length = 132
    ----
    Precision=8 bits
    Destination ID=0 (Luminance)
    DQT, Row #0: 1 1 1 1 2 1 3 3
    DQT, Row #1: 1 1 1 1 1 2 3 3
    DQT, Row #2: 1 1 1 1 1 2 4 3
    DQT, Row #3: 1 1 1 2 3 3 5 5
    DQT, Row #4: 1 1 2 3 3 4 3 6
    DQT, Row #5: 2 2 3 3 4 5 4 5
    DQT, Row #6: 1 3 5 4 5 6 5 5
    DQT, Row #7: 3 4 5 5 6 6 5 5
    Approx quality factor = 97.27 (scaling=5.47 variance=2.65)
    ----
    Precision=8 bits
    Destination ID=1 (Chrominance)
    DQT, Row #0: 1 1 1 1 5 5 5 5
    DQT, Row #1: 1 1 2 3 5 5 5 5
    DQT, Row #2: 1 2 3 5 5 5 5 5
    DQT, Row #3: 1 5 5 5 5 5 5 5
    DQT, Row #4: 3 5 5 5 5 5 5 5
    DQT, Row #5: 5 5 5 5 5 5 5 5
    DQT, Row #6: 5 5 5 5 5 5 5 5
    DQT, Row #7: 5 5 5 5 5 5 5 5
    Approx quality factor = 97.48 (scaling=5.04 variance=0.70)

    Table from using 'Frame-Forward x20 (maybe 20-25 frames into the .mov file)' in JPEGsnoop tools of .mov file.

    *** Marker: DQT (xFFDB) ***
    Define a Quantization Table.
    OFFSET: 0x009CEE82
    Table length = 132
    ----
    Precision=8 bits
    Destination ID=0 (Luminance)
    DQT, Row #0: 1 1 1 1 2 2 4 4
    DQT, Row #1: 1 1 1 1 2 3 4 4
    DQT, Row #2: 1 1 2 2 2 3 5 5
    DQT, Row #3: 1 2 2 2 4 5 7 7
    DQT, Row #4: 1 2 2 4 5 5 4 8
    DQT, Row #5: 3 2 4 5 5 7 5 7
    DQT, Row #6: 2 5 6 5 7 8 7 6
    DQT, Row #7: 5 5 6 6 8 8 7 7
    Approx quality factor = 96.39 (scaling=7.22 variance=3.41)
    ----
    Precision=8 bits
    Destination ID=1 (Chrominance)
    DQT, Row #0: 2 1 2 2 7 7 7 7
    DQT, Row #1: 2 2 3 4 7 7 7 7
    DQT, Row #2: 2 3 5 7 7 7 7 7
    DQT, Row #3: 2 7 7 7 7 7 7 7
    DQT, Row #4: 5 7 7 7 7 7 7 7
    DQT, Row #5: 7 7 7 7 7 7 7 7
    DQT, Row #6: 7 7 7 7 7 7 7 7
    DQT, Row #7: 7 7 7 7 7 7 7 7
    Approx quality factor = 96.33 (scaling=7.35 variance=1.90)
    Last edited by IanB; 06-12-2010 at 05:47 PM.


     

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    #15
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    For many files JPEGSnoop show just error (even for normal 848).
    Plus it is dumb then working with MOV files.
    It looks like author don't know that MOV file format specification exists.


     

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    #16
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    1920x1080 settings from Papas (not the 1440x1080 stretched but the true 1920x1080)

    with 4:2:2 color turned on, I got 2 seconds of video, that was it before the camera stopped recording, it didn't freeze, but it automatically stops recording.

    Quality Settings: Same as previouse post
    87.6 mbps (approx)

    Original file:
    https://stillmaninteriors.dc1.netfir...s/P1080391.MOV



    *** Marker: DQT (xFFDB) ***
    Define a Quantization Table.
    OFFSET: 0x00115CA2
    Table length = 132
    ----
    Precision=8 bits
    Destination ID=0 (Luminance)
    DQT, Row #0: 2 2 2 2 5 3 8 8
    DQT, Row #1: 2 2 2 2 3 6 8 8
    DQT, Row #2: 2 2 3 3 3 6 11 9
    DQT, Row #3: 2 3 3 5 8 9 14 14
    DQT, Row #4: 2 3 5 8 9 11 8 16
    DQT, Row #5: 6 5 8 9 11 14 11 14
    DQT, Row #6: 3 9 13 11 14 16 14 13
    DQT, Row #7: 9 11 13 13 16 16 14 14
    Approx quality factor = 92.95 (scaling=14.10 variance=11.76)
    ----
    Precision=8 bits
    Destination ID=1 (Chrominance)
    DQT, Row #0: 3 2 3 3 14 14 14 14
    DQT, Row #1: 3 3 6 8 14 14 14 14
    DQT, Row #2: 3 6 9 14 14 14 14 14
    DQT, Row #3: 3 14 14 14 14 14 14 14
    DQT, Row #4: 9 14 14 14 14 14 14 14
    DQT, Row #5: 14 14 14 14 14 14 14 14
    DQT, Row #6: 14 14 14 14 14 14 14 14
    DQT, Row #7: 14 14 14 14 14 14 14 14
    Approx quality factor = 92.90 (scaling=14.21 variance=6.19)


     

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    #17
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    Yes, look at my explanation in main thread.
    Bitrate with Pappas settings is too much even for normal 1920, only 1440.
    Even 1440 in 422 require much lower quality settings.


     

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    ok
    #18
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    Ok, thanks Tester13 but I am wondering if this data is helping you? Or do we already have what you need?

    IB


     

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    #19
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    Quote Originally Posted by IanB View Post
    Ok, thanks Tester13 but I am wondering if this data is helping you? Or do we already have what you need?
    IB
    Quantization tables are lowest possible level to change quality.
    Each table is directly associated to JPEG quality setting.
    They all are scaled from source table.


     

  10. Collapse Details
    This may already be done, and it may not help you
    #20
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    Here are the Q tables from the latest 4:2:2 color patch with 720 mjpg and the papas settings.




    *** Marker: DQT (xFFDB) ***
    Define a Quantization Table.
    OFFSET: 0x0025C6A2
    Table length = 132
    ----
    Precision=8 bits
    Destination ID=0 (Luminance)
    DQT, Row #0: 1 1 1 1 2 1 3 3
    DQT, Row #1: 1 1 1 1 1 2 3 3
    DQT, Row #2: 1 1 1 1 1 2 4 3
    DQT, Row #3: 1 1 1 2 3 3 5 5
    DQT, Row #4: 1 1 2 3 3 4 3 5
    DQT, Row #5: 2 2 3 3 4 5 4 5
    DQT, Row #6: 1 3 4 4 5 5 5 4
    DQT, Row #7: 3 4 4 4 5 5 5 5
    Approx quality factor = 97.33 (scaling=5.34 variance=2.68)
    ----
    Precision=8 bits
    Destination ID=1 (Chrominance)
    DQT, Row #0: 1 1 1 1 5 5 5 5
    DQT, Row #1: 1 1 2 3 5 5 5 5
    DQT, Row #2: 1 2 3 5 5 5 5 5
    DQT, Row #3: 1 5 5 5 5 5 5 5
    DQT, Row #4: 3 5 5 5 5 5 5 5
    DQT, Row #5: 5 5 5 5 5 5 5 5
    DQT, Row #6: 5 5 5 5 5 5 5 5
    DQT, Row #7: 5 5 5 5 5 5 5 5
    Approx quality factor = 97.48 (scaling=5.04 variance=0.70)


     

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