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Revision 1224 - (download) (annotate)
Mon Nov 24 22:06:19 2003 UTC (19 years, 4 months ago) by edgomez
File size: 1985 byte(s)
Trellis was treating big levels exactly the same way as lower ones.
In some cases, trellis was doing wild optimizations favoring a 0
because the distortion introduced by that big coeff change was
acceptable. But visually this could result in some nasty blocks with wrong
chroma information or similar brutal changes in other planes as well.

Skal added big levels handling where trellis just tries to minimize
the cost varying the run value only. No level modification is done

This file lists the TODO items stll pending for the 1.0 release.

Active Items to work on:

* update vfw & dshow decoder frontends
  - GUI isn't perfect for vfw and dshow still links against xvid.dll
    which doesn't export internal functions anymore because of the
    license change. 
* decide on vfw & dshow linking policy. presently we statically link,
    however this increases the size of zips/packages where both vfw &
    dshow are included.
* update/fix CBR plugin
  - misses target bitrate, bitrate burst in static motion/high motion
* bug hunting (ed.gomez/sysKin)
  - xvidcore is still a place where bugs feel confortable
* quant matrix usage (not thread nor instance safe)
  - i (ed.gomez) started an API change to matrix related functions
    (quant_mpeg_xxx). But the remaining problem is that matrices should
    be put in FRAMEINFO structures, and matrices should be pushed down 
    through many function calls. I had no idea how to do that w/o
    hacking nastly.
* docbook writing (ed.gomez)
  - New API has to be documented.
* two pass code should not introduce quality regressions (every tester)

Already completed items:

* remove divx4 api (ed.gomez)
* remove VOP_TYPE enumerations (peter)
* remove HINTed ME stuff (ed.gomez)
* xvid_image_t/xvid_gbl_convert_t (peter)
* xvid_global structs (peter)
* errors codes (peter)
* xvid_decoder structs (peter)
* apply encoder api changes "HEAPS" (peter)
* rawdec (use xvid_decraw instead) (ed.gomez)
* Support for GMC 3 warp points (christoph)
* New Qpel code (michael)
* ME splitting and ME improvements (sysKin)
* New unix build process (ed.gomez)
* New thread/instance safe sse2 code (p.massimino)
* INSTALL guide for Unix and Win32 (ed.gomez)
* dshow static link to libxvidcore.lib (peter)
* update/fix Lumimasking (sysKin)
* trellis for mpeg and relaxed optimization for big levels (skal)

Last edited: $Date: 2003-11-24 22:06:19 $

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