[ExtractStream] Possible end of ZSS development...

[Edmond E. Shwayri]

>And get :
>
>GOP I P B B P B B P B B GOP I B B P B B P B B
> 1 4 2 3 7 5 6 10 8 9 13 11 12 16 14 15 19 17 18 <- these
>values represent the temporal decode order

>So in your example the Closed flag should be 0, as you do require the next I
>frame in the subsiquent GOP to decode the two last B frames.

Not in your order, you don't. The Bs at 2 and 3 require the I and P at 1 
and 4. The Bs at 5 and 6 need the P at 4 and the P at 7. The Bs at 8 and 
9 needs the P at 7 and the P at 10. They have no need for the I in 
GOP2. By definition if you are in DTS order, they shouldn't, since if you 
are correct and the frames are in decode order than all the info they need 
has ALREADY been supplied to the decoder before they arrive.

After doing more checking, I think you are right about the order. The 
temporal sequence number within the frames is saying so.

Checking temporal sequence based on the header for the frame :

I 2
B 0
B 1
P 5
B 3
B 4
P 7
B 5
B 6
P 9
B 7
B 8
P 11
B 9
B 10
P 14
B 12
B 13

The GOP is marked as open NOT because the last B frames require the next 
I-Frame, but because the first 2 B frames have a backward reference to the 
last P or I frame in the previous GOP? The question that arises is what is 
the formal MPEG definition of that flag?

Ok, better. This is finally beginning to make sense. In this case, 
looking at the PES time-stamps again :

1 PES Video Header Found....Result = 1212.855556 I
2 PES Video Header Found....Result = 1146.111111 B
3 PES Video Header Found....Result = 1179.477778 BP
4 PES Video Header Found....Result = 1246.211111 B
5 PES Video Header Found....Result = 1279.577778 BP
6 PES Video Header Found....Result = 1346.311111 B
7 PES Video Header Found....Result = 1379.677778 BP
8 PES Video Header Found....Result = 1446.411111 B
9 PES Video Header Found....Result = 1479.777778 BPB
10 PES Video Header Found....Result = 1546.511111 B
Next GOP Header
11 PES Video Header Found....Result = 1579.888889 I

And re-ordering :
B @ 2 PTS 1146
B @ 3 PTS 1179
I @ 1 Frame PTS 1212
B @ 4 Frame PTS 1246
B @ 5 Frame PTS 1279
P @ 3 Missing PTS? 1312
B @ 6 PTS 1346

Hmmmm... I still get the nagging feeling that something is still wrong with 
this picture....