implement an optimized MMX version of the function


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Fix synthetic next_pts calculation / audio pts patch by (Wolfram Gloger <wmglo at dent dot med dot uni-muenchen dot de>)


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@3079 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

- fixed VBR+constrained bitstream header flags for non-VCD
- more sane (and SVCD compatible) value for video stream->max_buffer_size
- always write at least one PES header stuffing byte for MPEG-2 to
prevent accidental start code generation
- do not write more than 16 stuffing bytes in a PES header (not
allowed). Use padding packets instead.
- include a PES extension in the first MPEG-2 packet
- fill the first pack of SVCD files with padding
- "sanity hack" that prevents the SCR from overtaking the PTS for non-VCD
- fixed VCD PTS values to correspond to the SCR
- always include DTS in the first SVCD packet (fixes lots of
compatibility problems with DVD players)

patch by (Hauke Duden <H.NS.Duden at gmx dot net>)


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Perl!)


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support reusing mb types and field select values of the source file, but use motion vectors just as additional predictors
minor cleanup
segfault fix


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License change and cpu detection patch by (James Morrison <ja2morri at csclub dot uwaterloo dot ca>)


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4mv motion vector passthrough


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   * Enabling UltraSparc stuff wit _SPARC64


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ported to ffmpeg by (ja2morri at csclub dot uwaterloo dot ca (james morrison))
useable under LGPL with their agreement


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