Sorry document is
www.w3.org/Graphics/*JPEG*/itu-t81.pdf
The binary decoding tables in the windows driver for the DC table are as
below. Once I knew what they should look like I was able to find them in
the windows driver. You can do a binary search in the .sys file of the
windows driver. The AC table has a separate run and seperate size table,
next to the maxcode, valptr and mincode
entry-number, maxcode, valcode, mincode
0 ffffffff 0000 00000000
1 00000000 0000 00000000
2 00000006 0001 00000002
3 0000000e 0006 0000000e
4 0000001e 0007 0000001e
5 0000003e 0008 0000003e
6 0000007e 0009 0000007e
7 000000fe 000a 000000fe
8 000001fe 000b 000001fe
9 000003fe 000c 000003fe
10 ffffffff 0000 00000000
11 ffffffff 0000 00000000
12 ffffffff 0000 00000000
13 ffffffff 0000 00000000
14 ffffffff 0000 00000000
15 ffffffff 0000 00000000
16 ffffffff 0000 00000000
Ilyes Gouta wrote:
> Willem,
>
> Where can we find TO81e.doc? Can you post the test programs and some
> sample code? I'm really thrilled to get this code working on my
> mt9v011/m5603c combo.
>
> Regards,
> Ilyes Gouta.
>
> On Sat, Sep 27, 2008 at 9:00 PM, wduinker <[EMAIL PROTECTED]> wrote:
>
>> To all m5603c users
>>
>> This summer I have worked again on the m5603c.
>>
>> I finally figured out the huffman tables for the jpeg. The tables below
>> give the same decoding tables that are in the windows drivers. Decoding
>> tables in the windows driver are mincode, maxcode and valptr (Figure
>> F.15 page 108 TO81e.doc). The DC is non standard. It does not have the
>> "1" as category value. The AC tables is standard. Tables are used as far
>> as I see for Y, Cb and CR.
>>
>> I test it with the test-pattern from the mt9v011 sensor. I have a user
>> space program with reads the data from the usbfs system. Works just as
>> fast as the kernel driver.
>>
>> There is still something wrong with the quality tables and maybe the
>> header settings. I am producing both 4:2:2 as well as 4:1:1 jpeg raw
>> data files.
>>
>> DC table
>> unsigned char dht1[] =
>> { 0xff,0xc4,0x00,0x1f, 0x00};
>> unsigned char bitsYDC[] =
>> {0, 1, 5, 1, 1, 1, 1 , 1, 1, 0, 0, 0, 0, 0, 0, 0, 0};
>> unsigned char valYDC[] = {0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
>>
>> AC table
>>
>> unsigned char dht2[] =
>> { 0xff,0xc4,0x00,0xb5, 0x10};
>> unsigned char bitsYAC[] =
>> {0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d};
>> unsigned char valYAC[] =
>> { 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12,
>> 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07,
>> 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08,
>> 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0,
>> 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16,
>> 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28,
>> 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
>> 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
>> 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
>> 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
>> 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
>> 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
>> 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
>> 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
>> 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
>> 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5,
>> 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4,
>> 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2,
>> 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea,
>> 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
>> 0xf9, 0xfa };
>>
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