Log of /xvidcore/src/utils/mbtransquant.c
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1.21.2.21 -
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Sun Nov 30 16:13:16 2003 UTC (20 years, 5 months ago) by
edgomez
Branch:
dev-api-4
Changes since
1.21.2.20: +23 -20 lines
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* Thread safe MPEG4 quantization functions.
Cleaned up version of patch provided by Michael
- fixed compiling problems on gcc
- added const qualifiers every where it was possible to help C compiler
optimization.
- added the mpeg_quant_matrices param to all ASM function prototype
in comments (even if it's not used, that shows we do it deliberatly)
- forces m[intra][0][0] = 8, otherwise XviD could write invalid streams.
* Added real CRC computing in xvid_bench.c
Revision
1.21.2.20 -
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Mon Nov 24 22:06:19 2003 UTC (20 years, 6 months ago) by
edgomez
Branch:
dev-api-4
Changes since
1.21.2.19: +54 -35 lines
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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
anymore.
Revision
1.21.2.7 -
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Thu Apr 10 13:05:54 2003 UTC (21 years, 1 month ago) by
edgomez
Branch:
dev-api-4
Changes since
1.21.2.6: +10 -9 lines
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2003-04-10 GMT Edouard Gomez <ed.gomez@free.fr> patch-14
Summary:
Removed all ABS() macros.
Revision:
xvidcore--devapi4--1.0--patch-14
All ABS macros have been replace with their stdlib.h/math.h
equivalent. This gives a 33% overall speedup for the plain C encoder,
while the ia32 one seems to suffer a small speed loss. However this
speed loss is very small and it seems it depends on the CPU type as
the abs/fabs usage is impacting badly on sad functions but impacting
well on interpolate functions ... weird inst'it ?
modified files:
src/bitstream/mbcoding.c src/global.h src/image/image.c
src/motion/motion_comp.c src/motion/motion_est.c
src/motion/sad.c src/prediction/mbprediction.c
src/utils/mbtransquant.c src/xvid.c
Revision
1.21.2.2 -
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Mon Mar 10 00:38:49 2003 UTC (21 years, 2 months ago) by
edgomez
Branch:
dev-api-4
Changes since
1.21.2.1: +16 -1 lines
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2003-03-10 00:36:15 GMT Edouard Gomez <ed.gomez@free.fr> patch-4
Summary:
Adds extended stats support even for bframes in xvidcore.
Revision:
xvidcore--devapi4--1.0--patch-4
This patch enables core extended stats support even for bframes. It
modifies the way the MBTransQuantBVOP function does its work. It used
to not dequant, idct the MB because bframes are never used as reference
frames. However if we want to compute stats, then we must perform these
inverse transformations.
modified files:
src/encoder.c src/utils/mbfunctions.h src/utils/mbtransquant.c
Revision
1.8 -
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Fri Aug 9 19:58:41 2002 UTC (21 years, 9 months ago) by
chl
Branch:
MAIN
Changes since
1.7: +321 -0 lines
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Added several MB-functions which do the same as MBTransQuantInter/Intra now,
but split into several routines. MBTransQuantInter2/Intra2 do the same as
-Inter/Intra but using the split up routines, MBTransQuantBVOP skips unneeded
decoding operations for B-VOPs.
Revision
1.3 -
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Thu Mar 28 20:57:25 2002 UTC (22 years, 2 months ago) by
edgomez
Branch:
MAIN
Changes since
1.2: +80 -69 lines
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Big patch, use it with care (tests done with GNU/Linux) :
- Trivial warnings in encoder.c line 282 ret1 = ret 2 = 0;
- Lot of "New line at end of file missing" warnings fixed (gcc3)
- All 2d arrays have been turned into 1d arrays
To force alignment of matrices on stack, use DECLARE_ALIGNED_MATRIX
(read portab.h)
Win32 users should give feedback.
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