git-svn-id: file:///var/local/repositories/ffmpeg/trunk@19735 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

a packet of Speex frames as a single frame.


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1.3x and 3% on G4.
Though I think only part of this speedup is due to my optimizations per se;
some of it is that I got a better roll on the GCC random code generator.
Trivial reorderings of this function have a disproportionate effect on speed.



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The first member of struct ScanTable is a simple pointer, extra alignment
of which serves no purpose.  The alignment specifier was added along with
some Altivec optimisations also adding a 16-byte-aligned array at the end
of struct ScanTable.  Presumably the redundant, outer alignment was added
by mistake.  The inner one is clearly sufficient.

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Patch by Christian Schmidt, schmidt digadd de 


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Patch by Lars Täuber, lars D taeuber A gmx D net 


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These arrays are passed to functions for which we promise 16-byte
alignment, so make sure we fulfil that promise.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@19716 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

None of these arrays are used in ways requiring extra alignment.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@19715 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

Bluray subtitle decoder instead of as small as possible.
This avoids completely unnecessary issues with e.g. libswscale.
(See r19673)

Patch by Stephen Backway, stev391 A exemail D com D au


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@19714 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

Fixes "dvd_subtitle too big" errors when encoding HD video subtitles
to DVD format.


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(which uses movdqa to xmm1 on inv_zigzag_direct16).


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If it was not 0, subtitle encoding would fail.


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is invalid (e.g. truncated file) we might end up reading the whole file
since trying to seek beyond the end of file does not set EOF.


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Make sure AVSubtitle is initialized, memset it to 0.


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patch by Maksym Veremeyenko, verem m1stereo tv 


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@19700 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

Patch by Stephen Backway, stev391 A exemail D com D au 


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The difference between 188 and 204 is not worth worrying about.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@19697 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

Storing a single element from a vector where all elements have the same
value does not require an aligned destination.  Which element is stored
depends on the alignment of the destination address, but since they all
have the same value, the result is the same regardless of the alignment.

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