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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


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@22084 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

 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.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@22082 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@22078 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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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