[FFmpeg-devel] jframe
Reimar Döffinger
Reimar.Doeffinger
Thu Jun 7 16:06:33 CEST 2007
Hello,
On Thu, Jun 07, 2007 at 11:47:40AM +0200, Reimar D?ffinger wrote:
> On Wed, May 30, 2007 at 10:59:54PM +0200, matthieu castet wrote:
> > > On Wed, May 30, 2007 at 05:30:57PM +0300, Ivan Kalvachev wrote:
> > >> 2007/5/30, Michael Niedermayer <michaelni at gmx.at>:
> > >>>
> > >>>> A google search
> > >>>> comes up with nothing. How do you know that j-type frames are called 'j-type
> > >>>> frames'?
> > >>> we dont, and they are also almost certainly not called j frames by MS
> > >> They call them X8 (or intra X8).
> > >> Kostya also said they refer to them in this way in the vc1 advanced profile.
> >
> > There also a callgraph of the MS codec :
> > http://multimedia.cx/eggs/images/dcng-frame18-callgraph.png
>
> Does someone know details about the (Local?)Huffman stuff that X8 uses?
> Is this in use in some other places as well? Is there maybe even already
> some code somewhere?
> I hate huffman so I don't really want to play with that *g*
Still in the hope that someone else might be doing the work ;-):
attached are the arrays with the huffman code lengths that wmv2 J-Frames
uses (not sure all are really used) in a sanitized form (decoder stores 2
per byte and with -1 offset).
There are codes for values 0..11, 0..76 and 0..33.
Greetings,
Reimar D?ffinger
-------------- next part --------------
huffman header:
index for code table: depends on number of code tables for mode (1, 2 or 3 bits)
gacCodeLengthsOrientLowRate[][] = {
{2, 2, 3, 3, 3, 6, 5, 6, 6, 6, 6, 6},
{1, 2, 3, 5, 5, 7, 6, 7, 7, 7, 7, 7}
};
gacCodeLengthsOrientHighRate[][] = {
{1, 3, 3, 4, 4, 6, 5, 6, 6, 6, 6, 6},
{5, 5, 5, 2, 2, 4, 5, 3, 4, 4, 5, 5},
{2, 2, 3, 3, 3, 6, 6, 5, 6, 6, 6, 6},
{3, 4, 4, 2, 2, 5, 5, 4, 5, 5, 5, 5}
};
gacCodeLengthsInterLowRate[][] = {
{
3, 4, 6, 6, 7, 6, 15, 8, 15, 9, 15, 9, 15, 15, 15, 14,
5, 6, 9, 9, 7, 7, 9, 2, 3, 4, 4, 5, 6, 8, 7, 6,
7, 8, 14, 7, 7, 7, 9, 5, 6, 9, 8, 9, 9, 14, 14, 14,
8, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 14, 14, 14, 14,
14, 14, 9, 14, 9, 14, 14, 14, 14, 9, 14, 14, 14
},{
3, 4, 4, 5, 6, 6, 6, 6, 7, 8, 8, 8, 8, 14, 10, 10,
4, 5, 6, 7, 5, 6, 5, 4, 5, 5, 6, 6, 6, 6, 6, 7,
8, 8, 7, 7, 7, 7, 8, 7, 7, 8, 8, 8, 14, 10, 9, 14,
5, 9, 14, 14, 5, 8, 14, 14, 14, 6, 8, 7, 8, 9, 8, 14,
14, 8, 9, 14, 14, 14, 14, 9, 14, 5, 8, 9, 14
},{
4, 5, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 1, 2, 5, 5, 5, 11, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 5, 11, 11, 11, 11, 11, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11
},{
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 1, 8, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
},{
9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 8, 2, 1, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8
},{
10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 9, 9, 9, 1, 3, 9, 9, 2, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9
},{
2, 4, 5, 5, 6, 6, 7, 8, 8, 8, 9, 9, 10, 9, 10, 15,
3, 5, 6, 6, 4, 7, 5, 5, 7, 7, 7, 8, 7, 7, 8, 8,
8, 8, 8, 8, 8, 9, 8, 8, 8, 9, 15, 10, 10, 10, 15, 10,
6, 9, 15, 15, 4, 6, 10, 15, 14, 6, 8, 14, 10, 14, 14, 14,
14, 8, 10, 10, 14, 14, 14, 14, 14, 5, 10, 14, 14
},{
3, 4, 5, 5, 6, 8, 7, 6, 7, 13, 8, 8, 13, 13, 13, 8,
4, 5, 7, 6, 6, 7, 6, 3, 5, 5, 4, 6, 6, 6, 5, 8,
6, 6, 6, 6, 8, 8, 7, 5, 7, 7, 13, 7, 8, 13, 13, 13,
7, 7, 13, 13, 8, 13, 13, 13, 13, 8, 13, 7, 8, 13, 13, 13,
13, 8, 13, 13, 13, 13, 13, 8, 12, 6, 12, 12, 12
}
};
gacCodeLengthsInterHighRate[][] = {
{
2, 3, 4, 5, 6, 7, 7, 7, 9, 8, 8, 8, 10, 10, 10, 10,
4, 7, 9, 10, 6, 7, 7, 4, 4, 5, 5, 5, 6, 6, 6, 6,
7, 7, 7, 7, 7, 7, 7, 8, 9, 10, 14, 14, 14, 14, 10, 14,
9, 14, 14, 14, 8, 14, 14, 14, 14, 10, 14, 7, 8, 8, 9, 14,
14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13
},{
3, 5, 7, 6, 6, 8, 8, 8, 14, 14, 7, 14, 14, 14, 14, 14,
6, 8, 14, 8, 14, 14, 14, 2, 3, 5, 4, 4, 4, 6, 7, 7,
7, 7, 8, 7, 6, 6, 6, 6, 8, 14, 8, 8, 8, 14, 14, 14,
8, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 6, 13, 13, 13, 13,
13, 7, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13
},{
2, 3, 3, 4, 5, 5, 6, 6, 7, 7, 7, 8, 8, 8, 9, 10,
4, 6, 8, 9, 6, 9, 8, 5, 6, 6, 6, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 8, 16, 16, 15, 12, 15, 15, 15, 8, 10,
9, 12, 15, 15, 8, 15, 15, 15, 15, 9, 15, 7, 8, 8, 11, 12,
15, 15, 15, 15, 15, 15, 15, 15, 15, 9, 15, 15, 15
},{
2, 3, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 9, 10, 10,
3, 5, 7, 7, 4, 7, 5, 6, 7, 7, 7, 8, 8, 8, 8, 8,
8, 9, 8, 8, 8, 9, 11, 10, 11, 15, 10, 15, 15, 15, 9, 11,
7, 12, 15, 15, 5, 7, 8, 10, 11, 7, 10, 8, 8, 10, 10, 12,
15, 11, 15, 15, 15, 15, 15, 15, 15, 7, 14, 12, 12
},{
3, 4, 4, 5, 6, 6, 6, 7, 6, 7, 8, 8, 8, 9, 9, 8,
4, 5, 6, 6, 4, 6, 5, 5, 6, 6, 6, 6, 6, 6, 6, 7,
7, 7, 7, 7, 7, 8, 11, 7, 7, 8, 9, 9, 9, 10, 9, 10,
6, 8, 15, 15, 4, 7, 9, 15, 15, 6, 10, 7, 8, 8, 10, 9,
15, 9, 10, 10, 10, 15, 14, 14, 14, 5, 9, 14, 14
},{
2, 4, 5, 5, 6, 6, 7, 8, 8, 8, 9, 11, 8, 10, 11, 15,
3, 5, 6, 7, 4, 6, 5, 6, 7, 8, 7, 8, 7, 8, 7, 8,
8, 9, 9, 9, 9, 9, 11, 9, 10, 11, 15, 10, 11, 11, 10, 11,
6, 8, 15, 15, 4, 5, 7, 7, 9, 6, 8, 8, 10, 11, 15, 10,
15, 10, 10, 15, 15, 14, 14, 14, 14, 5, 10, 11, 9
},{
2, 4, 5, 6, 6, 8, 9, 10, 10, 9, 15, 15, 10, 15, 10, 15,
4, 5, 8, 8, 5, 9, 8, 3, 3, 4, 5, 6, 6, 7, 7, 7,
8, 8, 9, 8, 10, 15, 9, 6, 6, 9, 10, 8, 8, 10, 15, 15,
9, 15, 15, 15, 8, 15, 15, 15, 15, 9, 15, 9, 15, 15, 15, 15,
15, 10, 10, 15, 15, 15, 15, 15, 15, 8, 14, 14, 14
},{
4, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
11, 10, 10, 10, 10, 10, 10, 1, 2, 10, 4, 4, 10, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10
}
};
gacCodeLengthsIntraLowRate[][] = {
3, 4, 5, 5, 5, 5, 6, 7, 6, 7, 8, 7, 7, 8, 8, 9,
4, 6, 6, 7, 5, 8, 6, 4, 4, 5, 6, 6, 6, 6, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 9, 9, 9, 11, 9, 6, 8,
5, 7, 9, 9, 7, 10, 14, 14, 14, 7, 10, 7, 8, 9, 8, 7,
14, 7, 7, 10, 10, 14, 14, 10, 14, 6, 9, 8, 14
},{
2, 4, 5, 5, 6, 7, 7, 7, 8, 9, 9, 9, 9, 15, 10, 11,
3, 5, 6, 7, 4, 5, 4, 6, 7, 7, 8, 8, 7, 8, 9, 8,
9, 9, 9, 9, 10, 11, 11, 9, 9, 11, 15, 10, 15, 15, 15, 15,
6, 8, 15, 15, 4, 7, 8, 11, 15, 5, 8, 11, 10, 15, 15, 15,
15, 9, 15, 14, 14, 14, 14, 14, 14, 5, 14, 14, 14
},{
3, 4, 4, 5, 6, 7, 6, 7, 9, 9, 8, 15, 9, 15, 15, 15,
3, 5, 7, 7, 4, 6, 5, 4, 4, 5, 6, 6, 6, 6, 7, 8,
7, 8, 10, 8, 9, 10, 10, 6, 7, 9, 9, 8, 10, 9, 15, 15,
7, 9, 15, 15, 5, 8, 14, 14, 14, 6, 9, 9, 10, 10, 14, 14,
14, 8, 14, 14, 10, 14, 14, 9, 14, 6, 8, 9, 14
},{
3, 4, 5, 5, 6, 6, 7, 7, 6, 6, 7, 7, 9, 9, 7, 8,
5, 6, 9, 7, 6, 7, 7, 3, 3, 5, 5, 6, 6, 6, 7, 7,
8, 8, 8, 8, 7, 6, 7, 7, 6, 8, 9, 14, 14, 14, 7, 9,
7, 8, 14, 14, 8, 14, 13, 13, 13, 8, 13, 6, 7, 9, 6, 7,
13, 7, 7, 13, 13, 13, 13, 13, 13, 8, 13, 9, 13
},{
2, 4, 5, 5, 6, 6, 7, 7, 7, 8, 9, 9, 10, 10, 10, 15,
3, 5, 6, 7, 4, 6, 6, 4, 5, 6, 6, 6, 7, 7, 7, 7,
8, 8, 8, 8, 8, 8, 10, 7, 8, 9, 9, 10, 10, 12, 10, 12,
6, 8, 15, 15, 6, 9, 15, 15, 15, 7, 12, 10, 10, 15, 12, 11,
15, 8, 9, 15, 12, 15, 15, 15, 14, 6, 12, 11, 14
},{
3, 4, 4, 5, 5, 6, 7, 8, 11, 9, 11, 10, 11, 15, 15, 15,
4, 5, 6, 7, 5, 7, 6, 3, 4, 5, 5, 5, 5, 6, 6, 7,
8, 8, 8, 7, 8, 9, 11, 5, 7, 8, 8, 7, 10, 9, 9, 15,
7, 15, 15, 15, 7, 11, 15, 14, 14, 7, 14, 9, 10, 10, 9, 14,
14, 8, 11, 14, 14, 14, 14, 9, 14, 7, 9, 14, 14
},{
3, 4, 4, 5, 5, 5, 5, 6, 7, 5, 7, 13, 7, 13, 7, 13,
4, 6, 7, 7, 5, 7, 5, 6, 6, 7, 6, 7, 7, 13, 7, 7,
13, 13, 12, 7, 7, 12, 12, 7, 12, 12, 12, 12, 12, 12, 5, 6,
4, 5, 12, 7, 5, 12, 12, 12, 12, 6, 12, 6, 12, 12, 12, 12,
12, 6, 12, 12, 12, 12, 12, 12, 12, 5, 12, 7, 12
},{
3, 4, 5, 6, 6, 8, 8, 8, 11, 15, 15, 15, 15, 15, 15, 15,
4, 6, 7, 9, 5, 8, 8, 2, 3, 5, 5, 5, 6, 6, 8, 8,
9, 8, 7, 8, 9, 11, 15, 5, 7, 8, 9, 8, 9, 9, 15, 15,
8, 10, 15, 15, 8, 15, 15, 15, 15, 9, 15, 8, 9, 15, 15, 15,
15, 9, 15, 15, 15, 15, 15, 10, 14, 7, 9, 14, 14
}
};
gacCodeLengthsIntraHighRate[][] = {
{
3, 4, 4, 5, 6, 7, 6, 8, 8, 9, 10, 9, 9, 9, 15, 11,
4, 5, 6, 7, 5, 7, 5, 3, 4, 5, 5, 5, 5, 6, 6, 7,
8, 8, 8, 8, 8, 9, 10, 6, 7, 8, 8, 8, 11, 10, 11, 15,
7, 14, 14, 14, 6, 10, 14, 14, 14, 7, 14, 8, 9, 11, 10, 11,
14, 8, 10, 14, 14, 14, 14, 14, 14, 6, 9, 11, 14
},{
2, 3, 4, 5, 6, 6, 7, 8, 8, 8, 9, 9, 11, 11, 11, 11,
3, 5, 6, 7, 4, 6, 4, 8, 9, 10, 9, 10, 10, 12, 10, 10,
10, 10, 11, 12, 10, 12, 12, 15, 15, 15, 15, 14, 14, 14, 11, 11,
8, 10, 12, 14, 4, 6, 7, 8, 10, 6, 8, 11, 10, 14, 11, 12,
14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 11, 11, 10
},{
3, 4, 5, 6, 7, 8, 8, 8, 10, 9, 10, 10, 16, 10, 10, 16,
3, 5, 6, 8, 3, 5, 4, 7, 9, 9, 9, 9, 9, 10, 10, 10,
10, 10, 10, 9, 10, 11, 16, 10, 11, 10, 11, 10, 16, 11, 15, 15,
7, 9, 15, 15, 3, 4, 6, 6, 8, 5, 7, 15, 15, 15, 15, 11,
15, 11, 11, 11, 15, 15, 15, 15, 15, 5, 11, 8, 8
},{
2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 8, 8, 8, 9,
4, 6, 7, 9, 6, 8, 7, 6, 6, 6, 6, 6, 7, 7, 7, 7,
7, 7, 7, 7, 8, 8, 9, 11, 10, 15, 15, 15, 15, 15, 7, 8,
8, 12, 9, 15, 7, 9, 15, 15, 15, 8, 11, 6, 7, 8, 8, 7,
9, 11, 11, 15, 15, 15, 14, 14, 14, 8, 14, 14, 14
},{
2, 4, 5, 6, 6, 7, 7, 8, 8, 8, 9, 9, 10, 10, 14, 12,
3, 5, 6, 7, 4, 6, 5, 5, 6, 6, 6, 7, 7, 8, 7, 8,
8, 8, 8, 8, 9, 10, 10, 7, 8, 9, 9, 10, 11, 9, 9, 10,
7, 8, 12, 12, 4, 6, 8, 8, 9, 6, 8, 9, 10, 10, 11, 10,
11, 9, 9, 11, 11, 14, 14, 11, 14, 6, 9, 9, 10
},{
2, 3, 4, 5, 5, 6, 6, 7, 7, 7, 8, 8, 8, 9, 10, 9,
3, 5, 7, 8, 5, 7, 6, 5, 6, 7, 7, 7, 8, 8, 7, 8,
8, 8, 8, 8, 8, 9, 9, 11, 12, 12, 15, 13, 15, 15, 8, 9,
8, 10, 9, 13, 5, 7, 9, 9, 15, 7, 11, 8, 8, 8, 9, 8,
11, 12, 13, 15, 15, 15, 15, 15, 15, 7, 14, 11, 11
},{
3, 4, 4, 5, 5, 6, 6, 7, 8, 8, 8, 9, 9, 9, 11, 12,
3, 5, 6, 7, 4, 6, 5, 4, 5, 6, 6, 7, 7, 7, 7, 7,
7, 8, 8, 8, 9, 8, 10, 7, 8, 9, 11, 9, 10, 12, 9, 15,
6, 7, 15, 15, 5, 7, 9, 11, 15, 6, 9, 8, 9, 10, 10, 11,
15, 8, 9, 15, 15, 15, 14, 14, 14, 5, 10, 9, 14
},{
2, 4, 5, 6, 7, 7, 8, 8, 9, 9, 9, 10, 15, 15, 15, 15,
3, 5, 6, 7, 4, 6, 4, 8, 8, 9, 10, 9, 10, 9, 10, 10,
15, 10, 11, 11, 15, 10, 15, 9, 11, 15, 15, 11, 11, 15, 11, 15,
7, 10, 15, 15, 3, 5, 7, 7, 9, 5, 7, 9, 11, 15, 14, 14,
14, 9, 9, 14, 14, 14, 14, 14, 14, 5, 11, 8, 10
}
};
gacCodeLengthsDCLowRate[][] = {
{ 5, 4, 4, 5, 5, 4, 5, 5, 7, 7, 12, 12, 12, 12, 12, 12, 12,
3, 2, 3, 4, 5, 5, 7, 8, 12, 12, 12, 12, 12, 12, 12, 12, 12 },
{ 3, 3, 3, 4, 4, 3, 4, 4, 6, 7, 7, 11, 11, 11, 11, 11, 11,
6, 4, 5, 5, 6, 5, 7, 7, 11, 7, 11, 11, 11, 11, 11, 10, 10 },
{ 7, 7, 6, 7, 6, 7, 8, 8, 13, 13, 13, 13, 13, 13, 13, 13, 12,
1, 2, 3, 5, 6, 8, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12 },
{ 4, 3, 3, 4, 4, 3, 3, 3, 5, 5, 7, 11, 11, 11, 11, 11, 11,
5, 7, 6, 6, 7, 7, 7, 7, 11, 11, 11, 7, 11, 11, 11, 10, 10 },
{ 8, 7, 7, 7, 9, 8, 9, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13,
2, 1, 3, 4, 6, 7, 9, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13 },
{ 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 6, 6, 6, 6, 6, 6 },
{ 5, 4, 5, 5, 6, 5, 6, 6, 8, 8, 13, 13, 13, 13, 13, 13, 13,
2, 2, 3, 4, 5, 5, 8, 9, 13, 13, 13, 13, 13, 13, 13, 13, 13 },
{ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
1, 2, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 }
};
gacCodeLengthsDCHighRate[][] = {
{ 5, 4, 5, 5, 5, 5, 6, 6, 8, 8, 13, 13, 13, 13, 13, 13, 13,
2, 2, 3, 4, 5, 6, 8, 9, 13, 13, 13, 13, 13, 13, 13, 13, 13 },
{ 4, 3, 3, 4, 4, 3, 4, 3, 4, 4, 5, 6, 9, 9, 13, 13, 13,
6, 6, 6, 7, 9, 7, 8, 9, 13, 13, 13, 12, 12, 9, 12, 12, 12 },
{ 4, 3, 3, 4, 4, 4, 4, 4, 6, 6, 7, 7, 12, 12, 12, 12, 12,
4, 3, 4, 5, 6, 6, 7, 8, 12, 12, 12, 12, 12, 12, 12, 11, 11 },
{ 4, 2, 3, 3, 3, 3, 4, 4, 6, 6, 7, 8, 14, 14, 14, 14, 13,
9, 7, 8, 8, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13 },
{ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
1, 2, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 },
{ 5, 4, 5, 6, 6, 6, 7, 6, 7, 6, 8, 7, 8, 13, 13, 13, 13,
3, 1, 3, 7, 8, 9, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12 },
{ 4, 2, 3, 3, 4, 4, 5, 6, 7, 7, 8, 14, 14, 10, 9, 14, 14,
4, 3, 5, 6, 8, 8, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13 },
{ 6, 6, 6, 7, 7, 6, 6, 6, 7, 8, 8, 9, 10, 14, 14, 14, 14,
1, 2, 4, 5, 6, 7, 8, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13 }
};
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