On Sun, Dec 30, 2018 at 10:57:23PM +0200, Alex Mogurenko wrote:
> fdct done twice for each block. first time during quant calculation, second 
> during slice encoding. so if we pre-save dct coefficients no need to do fdct 
> second time.
> disadvantages: requires more memory
> advantages: improves performance ~4-5%
> ---
>  libavcodec/proresenc_kostya.c | 74 ++++++++++++++++++++++++-----------
>  1 file changed, 52 insertions(+), 22 deletions(-)

breaks fate

TEST    vsynth1-prores_ks
--- ./tests/ref/vsynth/vsynth1-prores_ks        2018-12-28 17:54:41.361383177 
+0100
+++ tests/data/fate/vsynth1-prores_ks   2018-12-31 03:45:17.207673799 +0100
@@ -1,4 +1,4 @@
-fe41a284da97ea5ec8866ca9a55b84da *tests/data/fate/vsynth1-prores_ks.mov
-3858911 tests/data/fate/vsynth1-prores_ks.mov
-100eb002413fe7a632d440dfbdf7e3ff 
*tests/data/fate/vsynth1-prores_ks.out.rawvideo
-stddev:    3.17 PSNR: 38.09 MAXDIFF:   39 bytes:  7603200/  7603200
+ba6294d95b96f032b90f804f112ab98a *tests/data/fate/vsynth1-prores_ks.mov
+3867422 tests/data/fate/vsynth1-prores_ks.mov
+e85510eadb1ff115e85c480d8e1011a4 
*tests/data/fate/vsynth1-prores_ks.out.rawvideo
+stddev:   19.38 PSNR: 22.38 MAXDIFF:  210 bytes:  7603200/  7603200
Test vsynth1-prores_ks failed. Look at tests/data/fate/vsynth1-prores_ks.err 
for details.
make: *** [fate-vsynth1-prores_ks] Error 1

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

"You are 36 times more likely to die in a bathtub than at the hands of a
terrorist. Also, you are 2.5 times more likely to become a president and
2 times more likely to become an astronaut, than to die in a terrorist
attack." -- Thoughty2

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