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with SSE and add a avcodec_align_dimensions2 taht returns the stride alignment
requirements independently from doing the width/height padding.


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this way it works on 64-bit archs too.

Patch by Jindřich Makovička ($lastname without last letter and háček, gmail)



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Indeo 5 into single structure IVIHuffTab and factorize code using it.

Based on patch by Maxim (max_pole at German GMX)



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patch by Zhou Zongyi @ zhouzy () os punkt pku dot edu speck cn


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 It happens when the number of channels defined by DCAContext:acmod is lower
than DCAContext:prim_channels. In this case, dca_subsubframe() will call
qmf_32_subbands() using s->channel_order_tab[] entries equal to -1.



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result depending on uninitialized data.

FATE result may change for this test.


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This way, we avoid overwriting stream_index in the user's AVPacket
with a nonsense value.


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8 cpu cycles faster.


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maybe 0.5 cpu cycles faster


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Patch by Francesco Cosoleto gmail($name)


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this seems 1 cpu cycle slower even though we practically just remove code.
Speed loss seems caused by the merge of if(left_type), iam commiting this
anyway as i cant imagine this to be anything but compiler messup.


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This seems unneeded as nothing seems to ever set it to non zero values.


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Not benchmarked as this is petty much just code removial.


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ones based on mb_stride in h264.
about 20 cpu cycles faster overall per MB


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Most of the make builtin rules, which we do not need, are suffix rules,
and we use only new-style pattern rules.  Disabling suffix rules saves
some time when building on slow systems.

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Also link avfiltergraph.o and graphparser.o against libavfilter, as it
uses them.


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if the checksums match


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svq3 decoder does not work yet though but i didnt want to keep compilation
broken longer


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Patch by Anton Khirnov wyskas gmail com


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Patch by Anton Khirnov wyskas gmail com


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Patch by Anton Khirnov wyskas gmail com


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seems 20cpu cycles faster


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about 5 cpu cycles slower in the local code but should be overall faster
due to reduced cache use. (my sample though has too few intra4x4 blocks
for this to be meassureable easily either way)


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