[Bug 98005] VCE dual instance encoding inconsistent since st/va: enable dual instances encode by sync surface

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98005

--- Comment #22 from Andy Furniss <adf.lists at gmail.com> ---
FWIW the reference decoder on a bad result looks like below when it hits the
first reversal it bails. Seems to always be the same place - this with the
default gop = 30.

00000(IDR)        0     0    20                             4:2:0     119
00001( P )        2     1    20                             4:2:0      40
00002( P )        4     2    21                             4:2:0      41
00003( P )        6     3    21                             4:2:0      41
00004( P )        8     4    22                             4:2:0      38
00005( P )       10     5    22                             4:2:0      46
00006( P )       12     6    22                             4:2:0      46
00007( P )       14     7    22                             4:2:0      46
00008( P )       16     8    22                             4:2:0      47
00009( P )       18     9    22                             4:2:0      47
00010( P )       20    10    21                             4:2:0      49
00011( P )       22    11    21                             4:2:0      49
00012( P )       24    12    21                             4:2:0      49
00013( P )       26    13    21                             4:2:0      49
00014( P )       28    14    21                             4:2:0      49
00015( P )       30    15    21                             4:2:0      49
00016( P )       32    16    21                             4:2:0      50
00017( P )       34    17    21                             4:2:0      49
00018( P )       36    18    21                             4:2:0      49
00019( P )       38    19    21                             4:2:0      49
00020( P )       40    20    21                             4:2:0      49
00021( P )       42    21    21                             4:2:0      36
00022( P )       44    22    21                             4:2:0      49
00023( P )       46    23    21                             4:2:0      49
00024( P )       48    24    21                             4:2:0      48
00025( P )       50    25    21                             4:2:0      49
00026( P )       52    26    21                             4:2:0      50
00027( P )       54    27    21                             4:2:0      50
00028( P )       56    28    21                             4:2:0      52
An unintentional loss of pictures occurs! Exit

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