Avoid the need to implement slice direction detection code, thus
reducing code duplication.

See the thread:
"[FFmpeg-devel] [PATCH] Add a slice_dir parameter to avfilter_start_frame()".


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structs.


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Patch by Sergiy (piratfm at `do-no-evil-mail`.com)



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Fixes issue1481.


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Patch by Sergiy (piratfmGMAIL)



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adaptive quantization is enabled.
Fixes issue509.


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git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20721 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

20% faster predictor_update_filter, .4-4% faster ape decoding on core2



git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20720 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

50% faster predictor_update_filter, 1-10% faster ape decoding


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20719 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20717 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

Patch by Sergiy (com gmail . piratfm @ mail =)



git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20716 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

Patch by Sergiy (com.gmail@piratfm)



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track timestamp difference as well.
Patch by Sergiy (mail.composeAddress("piratfm","gmail.com"))



git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20714 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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"A format generated by IndigoVision 8000 video server" added in r20681.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20712 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

Original patch by Philipp Matthias Hahn, pmhahn pmhahn de 


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git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20707 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

Fixes issue547.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20706 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20704 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

From patch by Sergiy (mail = piratfm, gmail)



git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20703 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

Patch by Sergiy (gmail(piratfm))
Thread "[PATCH] rtmp-output"



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on their grouping, create one loop that indexes into a table of AC VLC 
tables.

There is also a small optimization here: Do not call unpack_vlcs()
if there are no fragments in the list with outstanding coefficients. 
My profiling indicates that this can save upwards of 1 million 
dezicycles per frame throughout the course of unpack_dct_coeffs().


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outstanding coefficients yet to be decoded from the bitstream. Once a 
fragment reaches end-of-block, remove it from this new list. This change 
makes the VP3/Theora entropy decode process dramatically faster due to 
not having to iterate incessantly over fragments which have already been 
fully decoded.


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